feat(front-end): nav bar

Reviewed-on: #42

.gitea/workflows/deploy.yaml

@@ -125,6 +125,18 @@ jobs:
           docker build -t "$FRONTEND_IMAGE" ./frontend
           docker push "$FRONTEND_IMAGE"
 
+      - name: Cleanup Docker on runner (prevent vdisk growth)
+        if: always()
+        shell: bash
+        run: |
+          set +e
+
+          # Keep recent artifacts, drop old local residue from CI builds.
+          docker container prune -f --filter "until=168h" || true
+          docker image prune -a -f --filter "until=168h" || true
+          docker builder prune -a -f --filter "until=168h" || true
+          docker network prune -f --filter "until=168h" || true
+
   deploy:
     needs: build-and-push
     runs-on: ubuntu-latest

README.md

@@ -33,7 +33,7 @@ Configura il percorso di OrcaSlicer in `backend/src/main/resources/application.p
 
 - `MEDIA_STORAGE_ROOT` per la root `storage_media` usata dal backend (`original/`, `public/`, `private/`)
 - `SHOP_STORAGE_ROOT` per la root `storage_shop` usata dal backend per i modelli dei prodotti shop
-- `MEDIA_FFMPEG_PATH` per il binario `ffmpeg`
+- `MEDIA_FFMPEG_PATH` per il binario `ffmpeg` (nel deploy Docker default: `/usr/local/bin/ffmpeg-media`)
 - `MEDIA_UPLOAD_MAX_FILE_SIZE_BYTES` per il limite per asset immagine
 
 ```bash
@@ -107,7 +107,7 @@ Operativamente:
 Assicurati che `slicer.path` punti al binario corretto. Su macOS è solitamente `/Applications/OrcaSlicer.app/Contents/MacOS/OrcaSlicer`. Su Linux è il percorso all'AppImage (estratta o meno).
 
 ### FFmpeg e media pubblici
-Verifica che `MEDIA_FFMPEG_PATH` punti a un `ffmpeg` con supporto JPEG, WebP e AVIF. Se gli URL media restituiti dalle API admin non sono raggiungibili, controlla che `APP_FRONTEND_BASE_URL` punti al dominio corretto, che `location /media/` sia esposto da Nginx e che il volume `storage_media` sia montato correttamente.
+Verifica che `MEDIA_FFMPEG_PATH` punti a un `ffmpeg` con supporto JPEG, WebP e AVIF (encoder + muxer AVIF). Nel container backend il default è `/usr/local/bin/ffmpeg-media`: usa `/usr/bin/ffmpeg` se già compatibile, altrimenti installa un fallback statico con supporto AVIF. Se gli URL media restituiti dalle API admin non sono raggiungibili, controlla che `APP_FRONTEND_BASE_URL` punti al dominio corretto, che `location /media/` sia esposto da Nginx e che il volume `storage_media` sia montato correttamente.
 
 ### Database connection
 Verifica le credenziali in `application.properties`. Se usi Docker, puoi passare `DB_URL`, `DB_USERNAME` e `DB_PASSWORD` come variabili d'ambiente.

backend/Dockerfile

@@ -12,25 +12,48 @@ RUN ./gradlew bootJar -x test --no-daemon
 FROM eclipse-temurin:21-jre-jammy
 ARG ORCA_VERSION=2.3.1
 ARG ORCA_DOWNLOAD_URL
+ARG FFMPEG_STATIC_URL=https://johnvansickle.com/ffmpeg/releases/ffmpeg-release-amd64-static.tar.xz
 
 # Install system dependencies for OrcaSlicer and media processing.
-# The build fails fast if the packaged ffmpeg lacks JPEG/WebP/AVIF encoders.
+# Prefer system ffmpeg; if AVIF support is incomplete, install a static ffmpeg fallback.
 RUN set -eux; \
     apt-get update; \
     DEBIAN_FRONTEND=noninteractive apt-get install -y --no-install-recommends \
     ffmpeg \
     wget \
+    xz-utils \
+    ca-certificates \
     assimp-utils \
     libgl1 \
     libglib2.0-0 \
     libgtk-3-0 \
     libdbus-1-3 \
     libwebkit2gtk-4.0-37; \
-    ffmpeg -hide_banner -encoders > /tmp/ffmpeg-encoders.txt; \
-    grep -Eq '[[:space:]]mjpeg[[:space:]]' /tmp/ffmpeg-encoders.txt; \
-    grep -Eq '[[:space:]](libwebp|webp)[[:space:]]' /tmp/ffmpeg-encoders.txt; \
-    grep -Eq '[[:space:]](libaom-av1|librav1e|libsvtav1)[[:space:]]' /tmp/ffmpeg-encoders.txt; \
+    check_ffmpeg_support() { \
+      ffmpeg_bin="$1"; \
+      "$ffmpeg_bin" -hide_banner -encoders > /tmp/ffmpeg-encoders.txt 2>&1 || return 1; \
+      "$ffmpeg_bin" -hide_banner -muxers > /tmp/ffmpeg-muxers.txt 2>&1 || return 1; \
+      grep -Eq '[[:space:]]mjpeg[[:space:]]' /tmp/ffmpeg-encoders.txt || return 1; \
+      grep -Eq '[[:space:]](libwebp|webp)[[:space:]]' /tmp/ffmpeg-encoders.txt || return 1; \
+      grep -Eq '[[:space:]](libaom-av1|librav1e|libsvtav1)[[:space:]]' /tmp/ffmpeg-encoders.txt || return 1; \
+      grep -Eq '[[:space:]]avif([[:space:]]|,|$)' /tmp/ffmpeg-muxers.txt || return 1; \
+      return 0; \
+    }; \
+    if check_ffmpeg_support /usr/bin/ffmpeg; then \
+      ln -sf /usr/bin/ffmpeg /usr/local/bin/ffmpeg-media; \
+    else \
+      echo "System ffmpeg lacks AVIF support, installing static fallback from ${FFMPEG_STATIC_URL}"; \
+      wget -q "${FFMPEG_STATIC_URL}" -O /tmp/ffmpeg-static.tar.xz; \
+      tar -xJf /tmp/ffmpeg-static.tar.xz -C /tmp; \
+      FFMPEG_STATIC_BIN="$(find /tmp -maxdepth 2 -type f -name ffmpeg | head -n 1)"; \
+      test -n "${FFMPEG_STATIC_BIN}"; \
+      install -m 0755 "${FFMPEG_STATIC_BIN}" /usr/local/bin/ffmpeg-media; \
+      check_ffmpeg_support /usr/local/bin/ffmpeg-media; \
+    fi; \
+    rm -f /tmp/ffmpeg-muxers.txt; \
     rm -f /tmp/ffmpeg-encoders.txt; \
+    rm -f /tmp/ffmpeg-static.tar.xz; \
+    rm -rf /tmp/ffmpeg-*-amd64-static; \
     rm -rf /var/lib/apt/lists/*
 
 # Install OrcaSlicer
@@ -71,6 +94,8 @@ ENV PATH="/opt/orcaslicer/usr/bin:${PATH}"
 # Set Slicer Path env variable for Java app
 ENV SLICER_PATH="/opt/orcaslicer/AppRun"
 ENV ASSIMP_PATH="assimp"
+# Use ffmpeg selected at image build time (system or static fallback) for media generation.
+ENV MEDIA_FFMPEG_PATH="/usr/local/bin/ffmpeg-media"
 
 WORKDIR /app
 # Copy JAR from build stage

backend/build.gradle

@@ -42,6 +42,7 @@ dependencies {
 	implementation 'org.springframework.boot:spring-boot-starter-thymeleaf'
 	implementation 'net.codecrete.qrbill:qrbill-generator:3.4.0'
 	implementation 'org.springframework.boot:spring-boot-starter-mail'
+	implementation 'org.jsoup:jsoup:1.18.3'
 	implementation platform('org.lwjgl:lwjgl-bom:3.3.4')
 	implementation 'org.lwjgl:lwjgl'
 	implementation 'org.lwjgl:lwjgl-assimp'

backend/entrypoint.sh

@@ -1,10 +1,61 @@
 #!/bin/sh
+set -e
+
+# In container default to the ffmpeg selected during image build.
+if [ -z "${MEDIA_FFMPEG_PATH:-}" ]; then
+  MEDIA_FFMPEG_PATH="/usr/local/bin/ffmpeg-media"
+fi
+export MEDIA_FFMPEG_PATH
+
+validate_ffmpeg_support() {
+  ffmpeg_bin="$1"
+  if ! command -v "$ffmpeg_bin" >/dev/null 2>&1; then
+    echo "ERROR: FFmpeg executable not found: ${ffmpeg_bin}" >&2
+    exit 11
+  fi
+
+  encoders="$(mktemp)"
+  muxers="$(mktemp)"
+  trap 'rm -f "$encoders" "$muxers"' EXIT
+
+  "$ffmpeg_bin" -hide_banner -encoders > "$encoders" 2>&1 || {
+    echo "ERROR: Unable to inspect FFmpeg encoders from ${ffmpeg_bin}" >&2
+    cat "$encoders" >&2
+    exit 12
+  }
+  "$ffmpeg_bin" -hide_banner -muxers > "$muxers" 2>&1 || {
+    echo "ERROR: Unable to inspect FFmpeg muxers from ${ffmpeg_bin}" >&2
+    cat "$muxers" >&2
+    exit 13
+  }
+
+  grep -Eq '[[:space:]]mjpeg[[:space:]]' "$encoders" || {
+    echo "ERROR: FFmpeg '${ffmpeg_bin}' missing JPEG encoder (mjpeg)." >&2
+    exit 14
+  }
+  grep -Eq '[[:space:]](libwebp|webp)[[:space:]]' "$encoders" || {
+    echo "ERROR: FFmpeg '${ffmpeg_bin}' missing WebP encoder." >&2
+    exit 15
+  }
+  grep -Eq '[[:space:]](libaom-av1|librav1e|libsvtav1)[[:space:]]' "$encoders" || {
+    echo "ERROR: FFmpeg '${ffmpeg_bin}' missing AVIF-capable encoder." >&2
+    exit 16
+  }
+  grep -Eq '[[:space:]]avif([[:space:]]|,|$)' "$muxers" || {
+    echo "ERROR: FFmpeg '${ffmpeg_bin}' missing AVIF muxer." >&2
+    exit 17
+  }
+}
+
+validate_ffmpeg_support "$MEDIA_FFMPEG_PATH"
+
 echo "----------------------------------------------------------------"
 echo "Starting Backend Application"
 echo "DB_URL: $DB_URL"
 echo "DB_USERNAME: $DB_USERNAME"
 echo "SPRING_DATASOURCE_URL: $SPRING_DATASOURCE_URL"
 echo "SLICER_PATH: $SLICER_PATH"
+echo "MEDIA_FFMPEG_PATH: $MEDIA_FFMPEG_PATH"
 echo "----------------------------------------------------------------"
 
 # Determine which environment variables to use for database connection

backend/src/main/java/com/printcalculator/controller/SitemapController.java

@@ -0,0 +1,37 @@
+package com.printcalculator.controller;
+
+import com.printcalculator.service.shop.ShopSitemapService;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.http.CacheControl;
+import org.springframework.http.MediaType;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+import java.time.Duration;
+
+@RestController
+public class SitemapController {
+    private final ShopSitemapService shopSitemapService;
+    private final long cacheSeconds;
+
+    public SitemapController(
+            ShopSitemapService shopSitemapService,
+            @Value("${app.sitemap.shop.cache-seconds:3600}") long cacheSeconds
+    ) {
+        this.shopSitemapService = shopSitemapService;
+        this.cacheSeconds = Math.max(cacheSeconds, 0L);
+    }
+
+    @GetMapping(value = "/api/sitemap-shop.xml", produces = MediaType.APPLICATION_XML_VALUE)
+    public ResponseEntity<String> getShopSitemap() {
+        CacheControl cacheControl = cacheSeconds > 0
+                ? CacheControl.maxAge(Duration.ofSeconds(cacheSeconds)).cachePublic()
+                : CacheControl.noCache();
+
+        return ResponseEntity.ok()
+                .contentType(MediaType.parseMediaType("application/xml;charset=UTF-8"))
+                .cacheControl(cacheControl)
+                .body(shopSitemapService.getShopSitemapXml());
+    }
+}

backend/src/main/java/com/printcalculator/dto/AdminShopProductDto.java

@@ -27,7 +27,15 @@ public class AdminShopProductDto {
     private String descriptionDe;
     private String descriptionFr;
     private String seoTitle;
+    private String seoTitleIt;
+    private String seoTitleEn;
+    private String seoTitleDe;
+    private String seoTitleFr;
     private String seoDescription;
+    private String seoDescriptionIt;
+    private String seoDescriptionEn;
+    private String seoDescriptionDe;
+    private String seoDescriptionFr;
     private String ogTitle;
     private String ogDescription;
     private Boolean indexable;
@@ -215,6 +223,38 @@ public class AdminShopProductDto {
         this.seoTitle = seoTitle;
     }
 
+    public String getSeoTitleIt() {
+        return seoTitleIt;
+    }
+
+    public void setSeoTitleIt(String seoTitleIt) {
+        this.seoTitleIt = seoTitleIt;
+    }
+
+    public String getSeoTitleEn() {
+        return seoTitleEn;
+    }
+
+    public void setSeoTitleEn(String seoTitleEn) {
+        this.seoTitleEn = seoTitleEn;
+    }
+
+    public String getSeoTitleDe() {
+        return seoTitleDe;
+    }
+
+    public void setSeoTitleDe(String seoTitleDe) {
+        this.seoTitleDe = seoTitleDe;
+    }
+
+    public String getSeoTitleFr() {
+        return seoTitleFr;
+    }
+
+    public void setSeoTitleFr(String seoTitleFr) {
+        this.seoTitleFr = seoTitleFr;
+    }
+
     public String getSeoDescription() {
         return seoDescription;
     }
@@ -223,6 +263,38 @@ public class AdminShopProductDto {
         this.seoDescription = seoDescription;
     }
 
+    public String getSeoDescriptionIt() {
+        return seoDescriptionIt;
+    }
+
+    public void setSeoDescriptionIt(String seoDescriptionIt) {
+        this.seoDescriptionIt = seoDescriptionIt;
+    }
+
+    public String getSeoDescriptionEn() {
+        return seoDescriptionEn;
+    }
+
+    public void setSeoDescriptionEn(String seoDescriptionEn) {
+        this.seoDescriptionEn = seoDescriptionEn;
+    }
+
+    public String getSeoDescriptionDe() {
+        return seoDescriptionDe;
+    }
+
+    public void setSeoDescriptionDe(String seoDescriptionDe) {
+        this.seoDescriptionDe = seoDescriptionDe;
+    }
+
+    public String getSeoDescriptionFr() {
+        return seoDescriptionFr;
+    }
+
+    public void setSeoDescriptionFr(String seoDescriptionFr) {
+        this.seoDescriptionFr = seoDescriptionFr;
+    }
+
     public String getOgTitle() {
         return ogTitle;
     }

backend/src/main/java/com/printcalculator/dto/AdminUpsertShopProductRequest.java

@@ -22,7 +22,15 @@ public class AdminUpsertShopProductRequest {
     private String descriptionDe;
     private String descriptionFr;
     private String seoTitle;
+    private String seoTitleIt;
+    private String seoTitleEn;
+    private String seoTitleDe;
+    private String seoTitleFr;
     private String seoDescription;
+    private String seoDescriptionIt;
+    private String seoDescriptionEn;
+    private String seoDescriptionDe;
+    private String seoDescriptionFr;
     private String ogTitle;
     private String ogDescription;
     private Boolean indexable;
@@ -175,6 +183,38 @@ public class AdminUpsertShopProductRequest {
         this.seoTitle = seoTitle;
     }
 
+    public String getSeoTitleIt() {
+        return seoTitleIt;
+    }
+
+    public void setSeoTitleIt(String seoTitleIt) {
+        this.seoTitleIt = seoTitleIt;
+    }
+
+    public String getSeoTitleEn() {
+        return seoTitleEn;
+    }
+
+    public void setSeoTitleEn(String seoTitleEn) {
+        this.seoTitleEn = seoTitleEn;
+    }
+
+    public String getSeoTitleDe() {
+        return seoTitleDe;
+    }
+
+    public void setSeoTitleDe(String seoTitleDe) {
+        this.seoTitleDe = seoTitleDe;
+    }
+
+    public String getSeoTitleFr() {
+        return seoTitleFr;
+    }
+
+    public void setSeoTitleFr(String seoTitleFr) {
+        this.seoTitleFr = seoTitleFr;
+    }
+
     public String getSeoDescription() {
         return seoDescription;
     }
@@ -183,6 +223,38 @@ public class AdminUpsertShopProductRequest {
         this.seoDescription = seoDescription;
     }
 
+    public String getSeoDescriptionIt() {
+        return seoDescriptionIt;
+    }
+
+    public void setSeoDescriptionIt(String seoDescriptionIt) {
+        this.seoDescriptionIt = seoDescriptionIt;
+    }
+
+    public String getSeoDescriptionEn() {
+        return seoDescriptionEn;
+    }
+
+    public void setSeoDescriptionEn(String seoDescriptionEn) {
+        this.seoDescriptionEn = seoDescriptionEn;
+    }
+
+    public String getSeoDescriptionDe() {
+        return seoDescriptionDe;
+    }
+
+    public void setSeoDescriptionDe(String seoDescriptionDe) {
+        this.seoDescriptionDe = seoDescriptionDe;
+    }
+
+    public String getSeoDescriptionFr() {
+        return seoDescriptionFr;
+    }
+
+    public void setSeoDescriptionFr(String seoDescriptionFr) {
+        this.seoDescriptionFr = seoDescriptionFr;
+    }
+
     public String getOgTitle() {
         return ogTitle;
     }

backend/src/main/java/com/printcalculator/entity/ShopProduct.java

@@ -86,9 +86,33 @@ public class ShopProduct {
     @Column(name = "seo_title", length = Integer.MAX_VALUE)
     private String seoTitle;
 
+    @Column(name = "seo_title_it", length = Integer.MAX_VALUE)
+    private String seoTitleIt;
+
+    @Column(name = "seo_title_en", length = Integer.MAX_VALUE)
+    private String seoTitleEn;
+
+    @Column(name = "seo_title_de", length = Integer.MAX_VALUE)
+    private String seoTitleDe;
+
+    @Column(name = "seo_title_fr", length = Integer.MAX_VALUE)
+    private String seoTitleFr;
+
     @Column(name = "seo_description", length = Integer.MAX_VALUE)
     private String seoDescription;
 
+    @Column(name = "seo_description_it", length = Integer.MAX_VALUE)
+    private String seoDescriptionIt;
+
+    @Column(name = "seo_description_en", length = Integer.MAX_VALUE)
+    private String seoDescriptionEn;
+
+    @Column(name = "seo_description_de", length = Integer.MAX_VALUE)
+    private String seoDescriptionDe;
+
+    @Column(name = "seo_description_fr", length = Integer.MAX_VALUE)
+    private String seoDescriptionFr;
+
     @Column(name = "og_title", length = Integer.MAX_VALUE)
     private String ogTitle;
 
@@ -319,6 +343,70 @@ public class ShopProduct {
         this.seoDescription = seoDescription;
     }
 
+    public String getSeoTitleIt() {
+        return seoTitleIt;
+    }
+
+    public void setSeoTitleIt(String seoTitleIt) {
+        this.seoTitleIt = seoTitleIt;
+    }
+
+    public String getSeoTitleEn() {
+        return seoTitleEn;
+    }
+
+    public void setSeoTitleEn(String seoTitleEn) {
+        this.seoTitleEn = seoTitleEn;
+    }
+
+    public String getSeoTitleDe() {
+        return seoTitleDe;
+    }
+
+    public void setSeoTitleDe(String seoTitleDe) {
+        this.seoTitleDe = seoTitleDe;
+    }
+
+    public String getSeoTitleFr() {
+        return seoTitleFr;
+    }
+
+    public void setSeoTitleFr(String seoTitleFr) {
+        this.seoTitleFr = seoTitleFr;
+    }
+
+    public String getSeoDescriptionIt() {
+        return seoDescriptionIt;
+    }
+
+    public void setSeoDescriptionIt(String seoDescriptionIt) {
+        this.seoDescriptionIt = seoDescriptionIt;
+    }
+
+    public String getSeoDescriptionEn() {
+        return seoDescriptionEn;
+    }
+
+    public void setSeoDescriptionEn(String seoDescriptionEn) {
+        this.seoDescriptionEn = seoDescriptionEn;
+    }
+
+    public String getSeoDescriptionDe() {
+        return seoDescriptionDe;
+    }
+
+    public void setSeoDescriptionDe(String seoDescriptionDe) {
+        this.seoDescriptionDe = seoDescriptionDe;
+    }
+
+    public String getSeoDescriptionFr() {
+        return seoDescriptionFr;
+    }
+
+    public void setSeoDescriptionFr(String seoDescriptionFr) {
+        this.seoDescriptionFr = seoDescriptionFr;
+    }
+
     public String getOgTitle() {
         return ogTitle;
     }
@@ -428,6 +516,36 @@ public class ShopProduct {
         }
     }
 
+    public String getSeoTitleForLanguage(String language) {
+        return resolveLocalizedValue(language, seoTitle, seoTitleIt, seoTitleEn, seoTitleDe, seoTitleFr);
+    }
+
+    public void setSeoTitleForLanguage(String language, String value) {
+        switch (normalizeLanguage(language)) {
+            case "it" -> seoTitleIt = value;
+            case "en" -> seoTitleEn = value;
+            case "de" -> seoTitleDe = value;
+            case "fr" -> seoTitleFr = value;
+            default -> {
+            }
+        }
+    }
+
+    public String getSeoDescriptionForLanguage(String language) {
+        return resolveLocalizedValue(language, seoDescription, seoDescriptionIt, seoDescriptionEn, seoDescriptionDe, seoDescriptionFr);
+    }
+
+    public void setSeoDescriptionForLanguage(String language, String value) {
+        switch (normalizeLanguage(language)) {
+            case "it" -> seoDescriptionIt = value;
+            case "en" -> seoDescriptionEn = value;
+            case "de" -> seoDescriptionDe = value;
+            case "fr" -> seoDescriptionFr = value;
+            default -> {
+            }
+        }
+    }
+
     private String resolveLocalizedValue(String language,
                                          String fallback,
                                          String valueIt,

backend/src/main/java/com/printcalculator/service/admin/AdminMediaControllerService.java

@@ -402,7 +402,7 @@ public class AdminMediaControllerService {
 
         if (!skippedFormats.isEmpty()) {
             logger.warn(
-                    "Skipping media formats for asset {} because FFmpeg encoders are unavailable: {}",
+                    "Skipping media formats for asset {} because FFmpeg support is unavailable: {}",
                     asset.getId(),
                     String.join(", ", skippedFormats)
             );

backend/src/main/java/com/printcalculator/service/admin/AdminShopProductControllerService.java

@@ -22,6 +22,9 @@ import com.printcalculator.service.SlicerService;
 import com.printcalculator.service.media.PublicMediaQueryService;
 import com.printcalculator.service.shop.ShopStorageService;
 import com.printcalculator.service.storage.ClamAVService;
+import org.jsoup.Jsoup;
+import org.jsoup.nodes.Document;
+import org.jsoup.safety.Safelist;
 import org.springframework.beans.factory.annotation.Value;
 import org.springframework.http.HttpStatus;
 import org.springframework.stereotype.Service;
@@ -64,6 +67,10 @@ public class AdminShopProductControllerService {
     private static final Pattern DIACRITICS_PATTERN = Pattern.compile("\\p{M}+");
     private static final Pattern NON_ALPHANUMERIC_PATTERN = Pattern.compile("[^a-z0-9]+");
     private static final Pattern EDGE_DASH_PATTERN = Pattern.compile("(^-+|-+$)");
+    private static final Safelist PRODUCT_DESCRIPTION_SAFELIST = Safelist.none()
+            .addTags("p", "div", "br", "strong", "b", "em", "i", "u", "ul", "ol", "li", "a")
+            .addAttributes("a", "href")
+            .addProtocols("a", "href", "http", "https", "mailto", "tel");
 
     private final ShopProductRepository shopProductRepository;
     private final ShopCategoryRepository shopCategoryRepository;
@@ -163,7 +170,13 @@ public class AdminShopProductControllerService {
             }
         }
 
-        shopProductModelAssetRepository.findByProduct_Id(productId).ifPresent(asset -> deleteExistingModelFile(asset, productId));
+        shopProductModelAssetRepository.findByProduct_Id(productId).ifPresent(asset -> {
+            deleteExistingModelFile(asset, productId);
+            shopProductModelAssetRepository.delete(asset);
+        });
+        if (!variants.isEmpty()) {
+            shopProductVariantRepository.deleteAll(variants);
+        }
         shopProductRepository.delete(product);
     }
 
@@ -315,10 +328,18 @@ public class AdminShopProductControllerService {
         product.setDescriptionEn(localizedContent.descriptions().get("en"));
         product.setDescriptionDe(localizedContent.descriptions().get("de"));
         product.setDescriptionFr(localizedContent.descriptions().get("fr"));
-        product.setSeoTitle(normalizeOptional(payload.getSeoTitle()));
-        product.setSeoDescription(normalizeOptional(payload.getSeoDescription()));
-        product.setOgTitle(normalizeOptional(payload.getOgTitle()));
-        product.setOgDescription(normalizeOptional(payload.getOgDescription()));
+        product.setSeoTitle(localizedContent.defaultSeoTitle());
+        product.setSeoTitleIt(localizedContent.seoTitles().get("it"));
+        product.setSeoTitleEn(localizedContent.seoTitles().get("en"));
+        product.setSeoTitleDe(localizedContent.seoTitles().get("de"));
+        product.setSeoTitleFr(localizedContent.seoTitles().get("fr"));
+        product.setSeoDescription(localizedContent.defaultSeoDescription());
+        product.setSeoDescriptionIt(localizedContent.seoDescriptions().get("it"));
+        product.setSeoDescriptionEn(localizedContent.seoDescriptions().get("en"));
+        product.setSeoDescriptionDe(localizedContent.seoDescriptions().get("de"));
+        product.setSeoDescriptionFr(localizedContent.seoDescriptions().get("fr"));
+        product.setOgTitle(localizedContent.defaultSeoTitle());
+        product.setOgDescription(localizedContent.defaultSeoDescription());
         product.setIndexable(payload.getIndexable() == null || payload.getIndexable());
         product.setIsFeatured(Boolean.TRUE.equals(payload.getIsFeatured()));
         product.setIsActive(payload.getIsActive() == null || payload.getIsActive());
@@ -374,16 +395,23 @@ public class AdminShopProductControllerService {
         }
 
         List<AdminUpsertShopProductVariantRequest> normalized = new ArrayList<>(payloads);
-        Set<String> colorKeys = new LinkedHashSet<>();
+        Set<String> variantKeys = new LinkedHashSet<>();
         int defaultCount = 0;
         for (AdminUpsertShopProductVariantRequest payload : normalized) {
             if (payload == null) {
                 throw new ResponseStatusException(HttpStatus.BAD_REQUEST, "Variant payload is required");
             }
             String colorName = normalizeRequired(payload.getColorName(), "Variant colorName is required");
-            String colorKey = colorName.toLowerCase(Locale.ROOT);
-            if (!colorKeys.add(colorKey)) {
-                throw new ResponseStatusException(HttpStatus.BAD_REQUEST, "Duplicate variant colorName: " + colorName);
+            String materialCode = normalizeRequired(
+                    payload.getInternalMaterialCode(),
+                    "Variant internalMaterialCode is required"
+            ).toUpperCase(Locale.ROOT);
+            String variantKey = materialCode + "|" + colorName.toLowerCase(Locale.ROOT);
+            if (!variantKeys.add(variantKey)) {
+                throw new ResponseStatusException(
+                        HttpStatus.BAD_REQUEST,
+                        "Duplicate variant combination: " + materialCode + " / " + colorName
+                );
             }
             if (Boolean.TRUE.equals(payload.getIsDefault())) {
                 defaultCount++;
@@ -467,7 +495,15 @@ public class AdminShopProductControllerService {
         dto.setDescriptionDe(product.getDescriptionDe());
         dto.setDescriptionFr(product.getDescriptionFr());
         dto.setSeoTitle(product.getSeoTitle());
+        dto.setSeoTitleIt(product.getSeoTitleIt());
+        dto.setSeoTitleEn(product.getSeoTitleEn());
+        dto.setSeoTitleDe(product.getSeoTitleDe());
+        dto.setSeoTitleFr(product.getSeoTitleFr());
         dto.setSeoDescription(product.getSeoDescription());
+        dto.setSeoDescriptionIt(product.getSeoDescriptionIt());
+        dto.setSeoDescriptionEn(product.getSeoDescriptionEn());
+        dto.setSeoDescriptionDe(product.getSeoDescriptionDe());
+        dto.setSeoDescriptionFr(product.getSeoDescriptionFr());
         dto.setOgTitle(product.getOgTitle());
         dto.setOgDescription(product.getOgDescription());
         dto.setIndexable(product.getIndexable());
@@ -584,25 +620,55 @@ public class AdminShopProductControllerService {
         excerpts.put("fr", firstNonBlank(normalizeOptional(payload.getExcerptFr()), fallbackExcerpt));
 
         String fallbackDescription = firstNonBlank(
-                normalizeOptional(payload.getDescription()),
-                normalizeOptional(payload.getDescriptionIt()),
-                normalizeOptional(payload.getDescriptionEn()),
-                normalizeOptional(payload.getDescriptionDe()),
-                normalizeOptional(payload.getDescriptionFr())
+                normalizeRichTextOptional(payload.getDescription()),
+                normalizeRichTextOptional(payload.getDescriptionIt()),
+                normalizeRichTextOptional(payload.getDescriptionEn()),
+                normalizeRichTextOptional(payload.getDescriptionDe()),
+                normalizeRichTextOptional(payload.getDescriptionFr())
         );
         Map<String, String> descriptions = new LinkedHashMap<>();
-        descriptions.put("it", firstNonBlank(normalizeOptional(payload.getDescriptionIt()), fallbackDescription));
-        descriptions.put("en", firstNonBlank(normalizeOptional(payload.getDescriptionEn()), fallbackDescription));
-        descriptions.put("de", firstNonBlank(normalizeOptional(payload.getDescriptionDe()), fallbackDescription));
-        descriptions.put("fr", firstNonBlank(normalizeOptional(payload.getDescriptionFr()), fallbackDescription));
+        descriptions.put("it", firstNonBlank(normalizeRichTextOptional(payload.getDescriptionIt()), fallbackDescription));
+        descriptions.put("en", firstNonBlank(normalizeRichTextOptional(payload.getDescriptionEn()), fallbackDescription));
+        descriptions.put("de", firstNonBlank(normalizeRichTextOptional(payload.getDescriptionDe()), fallbackDescription));
+        descriptions.put("fr", firstNonBlank(normalizeRichTextOptional(payload.getDescriptionFr()), fallbackDescription));
+
+        String fallbackSeoTitle = firstNonBlank(
+                normalizeOptional(payload.getSeoTitle()),
+                normalizeOptional(payload.getSeoTitleIt()),
+                normalizeOptional(payload.getSeoTitleEn()),
+                normalizeOptional(payload.getSeoTitleDe()),
+                normalizeOptional(payload.getSeoTitleFr())
+        );
+        Map<String, String> seoTitles = new LinkedHashMap<>();
+        seoTitles.put("it", firstNonBlank(normalizeOptional(payload.getSeoTitleIt()), fallbackSeoTitle));
+        seoTitles.put("en", firstNonBlank(normalizeOptional(payload.getSeoTitleEn()), fallbackSeoTitle));
+        seoTitles.put("de", firstNonBlank(normalizeOptional(payload.getSeoTitleDe()), fallbackSeoTitle));
+        seoTitles.put("fr", firstNonBlank(normalizeOptional(payload.getSeoTitleFr()), fallbackSeoTitle));
+
+        String fallbackSeoDescription = firstNonBlank(
+                normalizeOptional(payload.getSeoDescription()),
+                normalizeOptional(payload.getSeoDescriptionIt()),
+                normalizeOptional(payload.getSeoDescriptionEn()),
+                normalizeOptional(payload.getSeoDescriptionDe()),
+                normalizeOptional(payload.getSeoDescriptionFr())
+        );
+        Map<String, String> seoDescriptions = new LinkedHashMap<>();
+        seoDescriptions.put("it", validateSeoDescriptionLength(firstNonBlank(normalizeOptional(payload.getSeoDescriptionIt()), fallbackSeoDescription), "Italian"));
+        seoDescriptions.put("en", validateSeoDescriptionLength(firstNonBlank(normalizeOptional(payload.getSeoDescriptionEn()), fallbackSeoDescription), "English"));
+        seoDescriptions.put("de", validateSeoDescriptionLength(firstNonBlank(normalizeOptional(payload.getSeoDescriptionDe()), fallbackSeoDescription), "German"));
+        seoDescriptions.put("fr", validateSeoDescriptionLength(firstNonBlank(normalizeOptional(payload.getSeoDescriptionFr()), fallbackSeoDescription), "French"));
 
         return new LocalizedProductContent(
                 names.get("it"),
                 firstNonBlank(excerpts.get("it"), fallbackExcerpt),
                 firstNonBlank(descriptions.get("it"), fallbackDescription),
+                firstNonBlank(seoTitles.get("it"), fallbackSeoTitle),
+                firstNonBlank(seoDescriptions.get("it"), fallbackSeoDescription),
                 names,
                 excerpts,
-                descriptions
+                descriptions,
+                seoTitles,
+                seoDescriptions
         );
     }
 
@@ -630,6 +696,27 @@ public class AdminShopProductControllerService {
         return normalized.isBlank() ? null : normalized;
     }
 
+    private String normalizeRichTextOptional(String value) {
+        String normalized = normalizeOptional(value);
+        if (normalized == null) {
+            return null;
+        }
+
+        String sanitized = Jsoup.clean(
+                normalized,
+                "",
+                PRODUCT_DESCRIPTION_SAFELIST,
+                new Document.OutputSettings().prettyPrint(false)
+        ).trim();
+
+        if (sanitized.isBlank()) {
+            return null;
+        }
+
+        String plainText = Jsoup.parse(sanitized).text();
+        return plainText != null && !plainText.trim().isEmpty() ? sanitized : null;
+    }
+
     private String firstNonBlank(String... values) {
         if (values == null) {
             return null;
@@ -670,6 +757,13 @@ public class AdminShopProductControllerService {
         return normalized.toUpperCase(Locale.ROOT);
     }
 
+    private String validateSeoDescriptionLength(String value, String languageLabel) {
+        if (value != null && value.length() > 160) {
+            throw new ResponseStatusException(HttpStatus.BAD_REQUEST, languageLabel + " SEO description must be at most 160 characters");
+        }
+        return value;
+    }
+
     private void validateModelUpload(MultipartFile file) {
         if (file == null || file.isEmpty()) {
             throw new ResponseStatusException(HttpStatus.BAD_REQUEST, "3D model file is required");
@@ -786,9 +880,13 @@ public class AdminShopProductControllerService {
             String defaultName,
             String defaultExcerpt,
             String defaultDescription,
+            String defaultSeoTitle,
+            String defaultSeoDescription,
             Map<String, String> names,
             Map<String, String> excerpts,
-            Map<String, String> descriptions
+            Map<String, String> descriptions,
+            Map<String, String> seoTitles,
+            Map<String, String> seoDescriptions
     ) {
     }
 }

backend/src/main/java/com/printcalculator/service/media/MediaFfmpegService.java

@@ -29,13 +29,18 @@ public class MediaFfmpegService {
             "WEBP", List.of("libwebp", "webp"),
             "AVIF", List.of("libaom-av1", "librav1e", "libsvtav1")
     );
+    private static final Map<String, List<String>> REQUIRED_MUXERS = Map.of(
+            "AVIF", List.of("avif")
+    );
 
     private final String ffmpegExecutable;
     private final Set<String> availableEncoders;
+    private final Set<String> availableMuxers;
 
     public MediaFfmpegService(@Value("${media.ffmpeg.path:ffmpeg}") String ffmpegPath) {
         this.ffmpegExecutable = resolveExecutable(ffmpegPath);
         this.availableEncoders = Collections.unmodifiableSet(loadAvailableEncoders());
+        this.availableMuxers = Collections.unmodifiableSet(loadAvailableMuxers());
     }
 
     public void generateVariant(Path source, Path target, int widthPx, int heightPx, String format) throws IOException {
@@ -47,9 +52,13 @@ public class MediaFfmpegService {
         Path targetPath = sanitizeMediaPath(target, "target", false);
         Files.createDirectories(targetPath.getParent());
 
-        String encoder = resolveEncoder(format);
+        String normalizedFormat = normalizeFormat(format);
+        String encoder = resolveEncoder(normalizedFormat);
         if (encoder == null) {
-            throw new IOException("FFmpeg encoder not available for media format " + format + ".");
+            throw new IOException("FFmpeg encoder not available for media format " + normalizedFormat + ".");
+        }
+        if (!hasRequiredMuxer(normalizedFormat)) {
+            throw new IOException("FFmpeg muxer not available for media format " + normalizedFormat + ".");
         }
 
         List<String> command = new ArrayList<>();
@@ -66,7 +75,7 @@ public class MediaFfmpegService {
         command.add("1");
         command.add("-an");
 
-        switch (format) {
+        switch (normalizedFormat) {
             case "JPEG" -> {
                 command.add("-c:v");
                 command.add(encoder);
@@ -86,8 +95,10 @@ public class MediaFfmpegService {
                 command.add("30");
                 command.add("-b:v");
                 command.add("0");
+                command.add("-f");
+                command.add("avif");
             }
-            default -> throw new IllegalArgumentException("Unsupported media format: " + format);
+            default -> throw new IllegalArgumentException("Unsupported media format: " + normalizedFormat);
         }
 
         command.add(targetPath.toString());
@@ -112,14 +123,16 @@ public class MediaFfmpegService {
     }
 
     public boolean canEncode(String format) {
-        return resolveEncoder(format) != null;
+        String normalizedFormat = normalizeFormat(format);
+        return resolveEncoder(normalizedFormat) != null && hasRequiredMuxer(normalizedFormat);
     }
 
     private String resolveEncoder(String format) {
-        if (format == null) {
+        String normalizedFormat = normalizeFormat(format);
+        if (normalizedFormat == null) {
             return null;
         }
-        List<String> candidates = ENCODER_CANDIDATES.get(format.trim().toUpperCase(Locale.ROOT));
+        List<String> candidates = ENCODER_CANDIDATES.get(normalizedFormat);
         if (candidates == null) {
             return null;
         }
@@ -129,6 +142,21 @@ public class MediaFfmpegService {
                 .orElse(null);
     }
 
+    private boolean hasRequiredMuxer(String format) {
+        List<String> requiredMuxers = REQUIRED_MUXERS.get(format);
+        if (requiredMuxers == null || requiredMuxers.isEmpty()) {
+            return true;
+        }
+        return requiredMuxers.stream().anyMatch(availableMuxers::contains);
+    }
+
+    private String normalizeFormat(String format) {
+        if (format == null) {
+            return null;
+        }
+        return format.trim().toUpperCase(Locale.ROOT);
+    }
+
     private Set<String> loadAvailableEncoders() {
         List<String> command = List.of(ffmpegExecutable, "-hide_banner", "-encoders");
         try {
@@ -154,6 +182,31 @@ public class MediaFfmpegService {
         }
     }
 
+    private Set<String> loadAvailableMuxers() {
+        List<String> command = List.of(ffmpegExecutable, "-hide_banner", "-muxers");
+        try {
+            Process process = startValidatedProcess(command);
+            String output;
+            try (InputStream processStream = process.getInputStream()) {
+                output = new String(processStream.readAllBytes(), StandardCharsets.UTF_8);
+            }
+
+            int exitCode = process.waitFor();
+            if (exitCode != 0) {
+                logger.warn("Unable to inspect FFmpeg muxers. Falling back to empty muxer list.");
+                return Set.of();
+            }
+            return parseAvailableMuxers(output);
+        } catch (Exception e) {
+            logger.warn(
+                    "Unable to inspect FFmpeg muxers for executable '{}'. Falling back to empty muxer list. {}",
+                    ffmpegExecutable,
+                    e.getMessage()
+            );
+            return Set.of();
+        }
+    }
+
     private Process startValidatedProcess(List<String> command) throws IOException {
         // nosemgrep: java.lang.security.audit.command-injection-process-builder.command-injection-process-builder
         return new ProcessBuilder(List.copyOf(command))
@@ -264,6 +317,26 @@ public class MediaFfmpegService {
         return encoders;
     }
 
+    private Set<String> parseAvailableMuxers(String output) {
+        if (output == null || output.isBlank()) {
+            return Set.of();
+        }
+
+        Set<String> muxers = new LinkedHashSet<>();
+        for (String line : output.split("\\R")) {
+            String trimmed = line.trim();
+            if (trimmed.isBlank() || trimmed.startsWith("--") || trimmed.startsWith("Muxers:")) {
+                continue;
+            }
+            String[] parts = trimmed.split("\\s+", 3);
+            if (parts.length < 2) {
+                continue;
+            }
+            muxers.add(parts[1]);
+        }
+        return muxers;
+    }
+
     private String truncate(String output) {
         if (output == null || output.isBlank()) {
             return "";

backend/src/main/java/com/printcalculator/service/media/MediaStorageService.java

@@ -21,7 +21,7 @@ public class MediaStorageService {
     private final String frontendBaseUrl;
 
     public MediaStorageService(@Value("${media.storage.root:storage_media}") String storageRoot,
-                               @Value("${app.frontend.base-url:${APP_FRONTEND_BASE_URL:http://localhost:8080}}") String frontendBaseUrl) {
+                               @Value("${app.frontend.base-url:${APP_FRONTEND_BASE_URL:http://localhost:8081}}") String frontendBaseUrl) {
         this.normalizedRootLocation = Paths.get(storageRoot).toAbsolutePath().normalize();
         this.originalRootLocation = normalizedRootLocation.resolve("original").normalize();
         this.publicRootLocation = normalizedRootLocation.resolve("public").normalize();
@@ -131,8 +131,11 @@ public class MediaStorageService {
 
     private String buildMediaBaseUrl() {
         String normalized = frontendBaseUrl != null ? frontendBaseUrl.trim() : "";
+        if (normalized.contains("localhost")){
+            return "http://localhost:8081";
+        }
         if (normalized.isBlank()) {
-            normalized = "http://localhost:4200";
+            normalized = "http://localhost:8081";
         }
         if (normalized.endsWith("/")) {
             normalized = normalized.substring(0, normalized.length() - 1);

backend/src/main/java/com/printcalculator/service/shop/PublicShopCatalogService.java

@@ -9,10 +9,12 @@ import com.printcalculator.dto.ShopProductDetailDto;
 import com.printcalculator.dto.ShopProductModelDto;
 import com.printcalculator.dto.ShopProductSummaryDto;
 import com.printcalculator.dto.ShopProductVariantOptionDto;
+import com.printcalculator.entity.FilamentVariant;
 import com.printcalculator.entity.ShopCategory;
 import com.printcalculator.entity.ShopProduct;
 import com.printcalculator.entity.ShopProductModelAsset;
 import com.printcalculator.entity.ShopProductVariant;
+import com.printcalculator.repository.FilamentVariantRepository;
 import com.printcalculator.repository.ShopCategoryRepository;
 import com.printcalculator.repository.ShopProductModelAssetRepository;
 import com.printcalculator.repository.ShopProductRepository;
@@ -31,6 +33,7 @@ import java.util.Collection;
 import java.util.Comparator;
 import java.util.LinkedHashMap;
 import java.util.List;
+import java.util.Locale;
 import java.util.Map;
 import java.util.Objects;
 import java.util.UUID;
@@ -46,6 +49,7 @@ public class PublicShopCatalogService {
     private final ShopProductRepository shopProductRepository;
     private final ShopProductVariantRepository shopProductVariantRepository;
     private final ShopProductModelAssetRepository shopProductModelAssetRepository;
+    private final FilamentVariantRepository filamentVariantRepository;
     private final PublicMediaQueryService publicMediaQueryService;
     private final ShopStorageService shopStorageService;
 
@@ -53,12 +57,14 @@ public class PublicShopCatalogService {
                                     ShopProductRepository shopProductRepository,
                                     ShopProductVariantRepository shopProductVariantRepository,
                                     ShopProductModelAssetRepository shopProductModelAssetRepository,
+                                    FilamentVariantRepository filamentVariantRepository,
                                     PublicMediaQueryService publicMediaQueryService,
                                     ShopStorageService shopStorageService) {
         this.shopCategoryRepository = shopCategoryRepository;
         this.shopProductRepository = shopProductRepository;
         this.shopProductVariantRepository = shopProductVariantRepository;
         this.shopProductModelAssetRepository = shopProductModelAssetRepository;
+        this.filamentVariantRepository = filamentVariantRepository;
         this.publicMediaQueryService = publicMediaQueryService;
         this.shopStorageService = shopStorageService;
     }
@@ -99,7 +105,12 @@ public class PublicShopCatalogService {
         List<ShopProductSummaryDto> products = productContext.entries().stream()
                 .filter(entry -> allowedCategoryIds.contains(entry.product().getCategory().getId()))
                 .filter(entry -> !Boolean.TRUE.equals(featuredOnly) || Boolean.TRUE.equals(entry.product().getIsFeatured()))
-                .map(entry -> toProductSummaryDto(entry, productContext.productMediaBySlug(), language))
+                .map(entry -> toProductSummaryDto(
+                        entry,
+                        productContext.productMediaBySlug(),
+                        productContext.variantColorHexByMaterialAndColor(),
+                        language
+                ))
                 .toList();
 
         ShopCategoryDetailDto selectedCategoryDetail = selectedCategory != null
@@ -128,7 +139,12 @@ public class PublicShopCatalogService {
             throw new ResponseStatusException(HttpStatus.NOT_FOUND, "Product not found");
         }
 
-        return toProductDetailDto(entry, productContext.productMediaBySlug(), language);
+        return toProductDetailDto(
+                entry,
+                productContext.productMediaBySlug(),
+                productContext.variantColorHexByMaterialAndColor(),
+                language
+        );
     }
 
     public ProductModelDownload getProductModelDownload(String slug) {
@@ -187,11 +203,32 @@ public class PublicShopCatalogService {
                 entries.stream().map(entry -> productMediaUsageKey(entry.product())).toList(),
                 language
         );
+        Map<String, String> variantColorHexByMaterialAndColor = buildFilamentVariantColorHexMap();
 
         Map<String, ProductEntry> entriesBySlug = entries.stream()
                 .collect(Collectors.toMap(entry -> entry.product().getSlug(), entry -> entry, (left, right) -> left, LinkedHashMap::new));
 
-        return new PublicProductContext(entries, entriesBySlug, productMediaBySlug);
+        return new PublicProductContext(entries, entriesBySlug, productMediaBySlug, variantColorHexByMaterialAndColor);
+    }
+
+    private Map<String, String> buildFilamentVariantColorHexMap() {
+        Map<String, String> colorsByMaterialAndColor = new LinkedHashMap<>();
+        for (FilamentVariant variant : filamentVariantRepository.findByIsActiveTrue()) {
+            String materialCode = variant.getFilamentMaterialType() != null
+                    ? variant.getFilamentMaterialType().getMaterialCode()
+                    : null;
+            String key = toMaterialAndColorKey(materialCode, variant.getColorName());
+            if (key == null) {
+                continue;
+            }
+
+            String colorHex = trimToNull(variant.getColorHex());
+            if (colorHex == null) {
+                continue;
+            }
+            colorsByMaterialAndColor.putIfAbsent(key, colorHex);
+        }
+        return colorsByMaterialAndColor;
     }
 
     private List<ProductEntry> loadPublicProducts(Collection<UUID> activeCategoryIds) {
@@ -349,6 +386,7 @@ public class PublicShopCatalogService {
 
     private ShopProductSummaryDto toProductSummaryDto(ProductEntry entry,
                                                       Map<String, List<PublicMediaUsageDto>> productMediaBySlug,
+                                                      Map<String, String> variantColorHexByMaterialAndColor,
                                                       String language) {
         List<PublicMediaUsageDto> images = productMediaBySlug.getOrDefault(productMediaUsageKey(entry.product()), List.of());
         return new ShopProductSummaryDto(
@@ -365,7 +403,7 @@ public class PublicShopCatalogService {
                 ),
                 resolvePriceFrom(entry.variants()),
                 resolvePriceTo(entry.variants()),
-                toVariantDto(entry.defaultVariant(), entry.defaultVariant()),
+                toVariantDto(entry.defaultVariant(), entry.defaultVariant(), variantColorHexByMaterialAndColor),
                 selectPrimaryMedia(images),
                 toProductModelDto(entry)
         );
@@ -373,18 +411,21 @@ public class PublicShopCatalogService {
 
     private ShopProductDetailDto toProductDetailDto(ProductEntry entry,
                                                     Map<String, List<PublicMediaUsageDto>> productMediaBySlug,
+                                                    Map<String, String> variantColorHexByMaterialAndColor,
                                                     String language) {
         List<PublicMediaUsageDto> images = productMediaBySlug.getOrDefault(productMediaUsageKey(entry.product()), List.of());
+        String localizedSeoTitle = entry.product().getSeoTitleForLanguage(language);
+        String localizedSeoDescription = entry.product().getSeoDescriptionForLanguage(language);
         return new ShopProductDetailDto(
                 entry.product().getId(),
                 entry.product().getSlug(),
                 entry.product().getNameForLanguage(language),
                 entry.product().getExcerptForLanguage(language),
                 entry.product().getDescriptionForLanguage(language),
-                entry.product().getSeoTitle(),
-                entry.product().getSeoDescription(),
-                entry.product().getOgTitle(),
-                entry.product().getOgDescription(),
+                localizedSeoTitle,
+                localizedSeoDescription,
+                localizedSeoTitle,
+                localizedSeoDescription,
                 entry.product().getIndexable(),
                 entry.product().getIsFeatured(),
                 entry.product().getSortOrder(),
@@ -396,9 +437,9 @@ public class PublicShopCatalogService {
                 buildCategoryBreadcrumbs(entry.product().getCategory()),
                 resolvePriceFrom(entry.variants()),
                 resolvePriceTo(entry.variants()),
-                toVariantDto(entry.defaultVariant(), entry.defaultVariant()),
+                toVariantDto(entry.defaultVariant(), entry.defaultVariant(), variantColorHexByMaterialAndColor),
                 entry.variants().stream()
-                        .map(variant -> toVariantDto(variant, entry.defaultVariant()))
+                        .map(variant -> toVariantDto(variant, entry.defaultVariant(), variantColorHexByMaterialAndColor))
                         .toList(),
                 selectPrimaryMedia(images),
                 images,
@@ -406,21 +447,61 @@ public class PublicShopCatalogService {
         );
     }
 
-    private ShopProductVariantOptionDto toVariantDto(ShopProductVariant variant, ShopProductVariant defaultVariant) {
+    private ShopProductVariantOptionDto toVariantDto(ShopProductVariant variant,
+                                                     ShopProductVariant defaultVariant,
+                                                     Map<String, String> variantColorHexByMaterialAndColor) {
         if (variant == null) {
             return null;
         }
+        String colorHex = trimToNull(variant.getColorHex());
+        if (colorHex == null) {
+            String key = toMaterialAndColorKey(variant.getInternalMaterialCode(), variant.getColorName());
+            colorHex = key != null ? variantColorHexByMaterialAndColor.get(key) : null;
+        }
         return new ShopProductVariantOptionDto(
                 variant.getId(),
                 variant.getSku(),
                 variant.getVariantLabel(),
                 variant.getColorName(),
-                variant.getColorHex(),
+                colorHex,
                 variant.getPriceChf(),
                 defaultVariant != null && Objects.equals(defaultVariant.getId(), variant.getId())
         );
     }
 
+    private String toMaterialAndColorKey(String materialCode, String colorName) {
+        String normalizedMaterialCode = normalizeMaterialCode(materialCode);
+        String normalizedColorName = normalizeColorName(colorName);
+        if (normalizedMaterialCode == null || normalizedColorName == null) {
+            return null;
+        }
+        return normalizedMaterialCode + "|" + normalizedColorName;
+    }
+
+    private String normalizeMaterialCode(String materialCode) {
+        String raw = trimToNull(materialCode);
+        if (raw == null) {
+            return null;
+        }
+        return raw.toUpperCase(Locale.ROOT);
+    }
+
+    private String normalizeColorName(String colorName) {
+        String raw = trimToNull(colorName);
+        if (raw == null) {
+            return null;
+        }
+        return raw.toLowerCase(Locale.ROOT);
+    }
+
+    private String trimToNull(String value) {
+        String raw = String.valueOf(value == null ? "" : value).trim();
+        if (raw.isEmpty()) {
+            return null;
+        }
+        return raw;
+    }
+
     private ShopProductModelDto toProductModelDto(ProductEntry entry) {
         if (entry.modelAsset() == null) {
             return null;
@@ -492,7 +573,8 @@ public class PublicShopCatalogService {
     private record PublicProductContext(
             List<ProductEntry> entries,
             Map<String, ProductEntry> entriesBySlug,
-            Map<String, List<PublicMediaUsageDto>> productMediaBySlug
+            Map<String, List<PublicMediaUsageDto>> productMediaBySlug,
+            Map<String, String> variantColorHexByMaterialAndColor
     ) {
     }
 

backend/src/main/java/com/printcalculator/service/shop/ShopSitemapService.java

@@ -0,0 +1,258 @@
+package com.printcalculator.service.shop;
+
+import com.printcalculator.entity.ShopCategory;
+import com.printcalculator.entity.ShopProduct;
+import com.printcalculator.repository.ShopCategoryRepository;
+import com.printcalculator.repository.ShopProductRepository;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
+
+import java.net.URLEncoder;
+import java.nio.charset.StandardCharsets;
+import java.text.Normalizer;
+import java.time.Clock;
+import java.time.Duration;
+import java.time.Instant;
+import java.time.OffsetDateTime;
+import java.time.format.DateTimeFormatter;
+import java.util.LinkedHashMap;
+import java.util.List;
+import java.util.Locale;
+import java.util.Map;
+import java.util.Set;
+import java.util.UUID;
+import java.util.stream.Collectors;
+
+@Service
+@Transactional(readOnly = true)
+public class ShopSitemapService {
+    private static final List<String> SUPPORTED_LANGUAGES = ShopProduct.SUPPORTED_LANGUAGES;
+    private static final String DEFAULT_LANGUAGE = "it";
+    private static final DateTimeFormatter LASTMOD_FORMATTER = DateTimeFormatter.ISO_OFFSET_DATE_TIME;
+
+    private final ShopCategoryRepository shopCategoryRepository;
+    private final ShopProductRepository shopProductRepository;
+    private final String frontendBaseUrl;
+    private final Duration cacheTtl;
+    private final Clock clock;
+
+    private volatile CachedSitemap cachedSitemap;
+
+    @Autowired
+    public ShopSitemapService(ShopCategoryRepository shopCategoryRepository,
+                              ShopProductRepository shopProductRepository,
+                              @Value("${app.frontend.base-url:http://localhost:4200}") String frontendBaseUrl,
+                              @Value("${app.sitemap.shop.cache-seconds:3600}") long cacheSeconds) {
+        this(shopCategoryRepository, shopProductRepository, frontendBaseUrl, cacheSeconds, Clock.systemUTC());
+    }
+
+    ShopSitemapService(ShopCategoryRepository shopCategoryRepository,
+                       ShopProductRepository shopProductRepository,
+                       String frontendBaseUrl,
+                       long cacheSeconds,
+                       Clock clock) {
+        this.shopCategoryRepository = shopCategoryRepository;
+        this.shopProductRepository = shopProductRepository;
+        this.frontendBaseUrl = normalizeBaseUrl(frontendBaseUrl);
+        this.cacheTtl = cacheSeconds > 0 ? Duration.ofSeconds(cacheSeconds) : Duration.ZERO;
+        this.clock = clock;
+    }
+
+    public String getShopSitemapXml() {
+        Instant now = Instant.now(clock);
+        CachedSitemap current = cachedSitemap;
+        if (current != null && now.isBefore(current.expiresAt())) {
+            return current.xml();
+        }
+
+        synchronized (this) {
+            current = cachedSitemap;
+            now = Instant.now(clock);
+            if (current != null && now.isBefore(current.expiresAt())) {
+                return current.xml();
+            }
+
+            String xml = buildSitemapXml();
+            Instant expiresAt = cacheTtl.isZero() ? now : now.plus(cacheTtl);
+            cachedSitemap = new CachedSitemap(xml, expiresAt);
+            return xml;
+        }
+    }
+
+    private String buildSitemapXml() {
+        List<ShopCategory> activeCategories = shopCategoryRepository.findAllByIsActiveTrueOrderBySortOrderAscNameAsc();
+        Set<UUID> activeCategoryIds = activeCategories.stream()
+                .map(ShopCategory::getId)
+                .collect(Collectors.toSet());
+
+        List<ShopProduct> activeProducts = shopProductRepository.findAllByIsActiveTrueOrderByIsFeaturedDescSortOrderAscNameAsc();
+
+        StringBuilder xml = new StringBuilder(16_384);
+        xml.append("<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n");
+        xml.append("<urlset xmlns=\"http://www.sitemaps.org/schemas/sitemap/0.9\" ");
+        xml.append("xmlns:xhtml=\"http://www.w3.org/1999/xhtml\">\n");
+
+        appendCategoryUrls(xml, activeCategories);
+        appendProductUrls(xml, activeProducts, activeCategoryIds);
+
+        xml.append("</urlset>\n");
+        return xml.toString();
+    }
+
+    private void appendCategoryUrls(StringBuilder xml, List<ShopCategory> categories) {
+        for (ShopCategory category : categories) {
+            if (!Boolean.TRUE.equals(category.getIndexable())) {
+                continue;
+            }
+
+            String encodedSlug = pathEncodeSegment(category.getSlug());
+            Map<String, String> hrefByLanguage = new LinkedHashMap<>();
+            for (String language : SUPPORTED_LANGUAGES) {
+                hrefByLanguage.put(language, frontendBaseUrl + "/" + language + "/shop/" + encodedSlug);
+            }
+
+            appendUrlEntry(xml, hrefByLanguage, category.getUpdatedAt());
+        }
+    }
+
+    private void appendProductUrls(StringBuilder xml,
+                                   List<ShopProduct> products,
+                                   Set<UUID> activeCategoryIds) {
+        for (ShopProduct product : products) {
+            if (!Boolean.TRUE.equals(product.getIndexable())) {
+                continue;
+            }
+            if (product.getCategory() == null || !activeCategoryIds.contains(product.getCategory().getId())) {
+                continue;
+            }
+
+            Map<String, String> hrefByLanguage = new LinkedHashMap<>();
+            for (String language : SUPPORTED_LANGUAGES) {
+                String publicSegment = localizedProductPathSegment(product, language);
+                hrefByLanguage.put(language, frontendBaseUrl + "/" + language + "/shop/p/" + pathEncodeSegment(publicSegment));
+            }
+
+            appendUrlEntry(xml, hrefByLanguage, product.getUpdatedAt());
+        }
+    }
+
+    private void appendUrlEntry(StringBuilder xml,
+                                Map<String, String> hrefByLanguage,
+                                OffsetDateTime lastmod) {
+        String defaultHref = hrefByLanguage.get(DEFAULT_LANGUAGE);
+        if (defaultHref == null || defaultHref.isBlank()) {
+            return;
+        }
+
+        for (String locLanguage : SUPPORTED_LANGUAGES) {
+            String locHref = hrefByLanguage.get(locLanguage);
+            if (locHref == null || locHref.isBlank()) {
+                continue;
+            }
+            appendLocalizedUrlEntry(xml, locHref, hrefByLanguage, defaultHref, lastmod);
+        }
+    }
+
+    private void appendLocalizedUrlEntry(StringBuilder xml,
+                                         String locHref,
+                                         Map<String, String> hrefByLanguage,
+                                         String defaultHref,
+                                         OffsetDateTime lastmod) {
+        xml.append("  <url>\n");
+        xml.append("    <loc>").append(xmlEscape(locHref)).append("</loc>\n");
+
+        for (String language : SUPPORTED_LANGUAGES) {
+            String href = hrefByLanguage.get(language);
+            if (href == null || href.isBlank()) {
+                continue;
+            }
+            xml.append("    <xhtml:link rel=\"alternate\" hreflang=\"")
+                    .append(language)
+                    .append("\" href=\"")
+                    .append(xmlEscape(href))
+                    .append("\" />\n");
+        }
+
+        xml.append("    <xhtml:link rel=\"alternate\" hreflang=\"x-default\" href=\"")
+                .append(xmlEscape(defaultHref))
+                .append("\" />\n");
+
+        if (lastmod != null) {
+            xml.append("    <lastmod>").append(LASTMOD_FORMATTER.format(lastmod)).append("</lastmod>\n");
+        }
+
+        xml.append("  </url>\n");
+    }
+
+    private String localizedProductPathSegment(ShopProduct product, String language) {
+        String localizedName = product.getNameForLanguage(language);
+        String idPrefix = productIdPrefix(product.getId());
+        String tail = firstNonBlank(slugify(localizedName), slugify(product.getSlug()), "product");
+        return idPrefix.isBlank() ? tail : idPrefix + "-" + tail;
+    }
+
+    private String productIdPrefix(UUID productId) {
+        if (productId == null) {
+            return "";
+        }
+        String raw = productId.toString().trim().toLowerCase(Locale.ROOT);
+        int dashIndex = raw.indexOf('-');
+        if (dashIndex > 0) {
+            return raw.substring(0, dashIndex);
+        }
+        return raw.length() >= 8 ? raw.substring(0, 8) : raw;
+    }
+
+    static String slugify(String rawValue) {
+        String safeValue = rawValue == null ? "" : rawValue;
+        String normalized = Normalizer.normalize(safeValue, Normalizer.Form.NFD)
+                .replaceAll("\\p{M}+", "")
+                .toLowerCase(Locale.ROOT)
+                .replaceAll("[^a-z0-9]+", "-")
+                .replaceAll("^-+|-+$", "")
+                .replaceAll("-{2,}", "-");
+        return normalized;
+    }
+
+    private String firstNonBlank(String... values) {
+        if (values == null) {
+            return null;
+        }
+        for (String value : values) {
+            if (value != null && !value.isBlank()) {
+                return value;
+            }
+        }
+        return null;
+    }
+
+    private String pathEncodeSegment(String rawSegment) {
+        String safeSegment = rawSegment == null ? "" : rawSegment;
+        return URLEncoder.encode(safeSegment, StandardCharsets.UTF_8).replace("+", "%20");
+    }
+
+    private String xmlEscape(String value) {
+        return String.valueOf(value)
+                .replace("&", "&amp;")
+                .replace("<", "&lt;")
+                .replace(">", "&gt;")
+                .replace("\"", "&quot;")
+                .replace("'", "&apos;");
+    }
+
+    private String normalizeBaseUrl(String baseUrl) {
+        String normalized = (baseUrl == null ? "" : baseUrl).trim();
+        if (normalized.isBlank()) {
+            return "http://localhost:4200";
+        }
+        while (normalized.endsWith("/")) {
+            normalized = normalized.substring(0, normalized.length() - 1);
+        }
+        return normalized;
+    }
+
+    private record CachedSitemap(String xml, Instant expiresAt) {
+    }
+}

backend/src/main/resources/application.properties

@@ -56,6 +56,7 @@ app.mail.contact-request.admin.enabled=${APP_MAIL_CONTACT_REQUEST_ADMIN_ENABLED:
 app.mail.contact-request.admin.address=${APP_MAIL_CONTACT_REQUEST_ADMIN_ADDRESS:info@3d-fab.ch}
 app.mail.contact-request.customer.enabled=${APP_MAIL_CONTACT_REQUEST_CUSTOMER_ENABLED:true}
 app.frontend.base-url=${APP_FRONTEND_BASE_URL:http://localhost:4200}
+app.sitemap.shop.cache-seconds=${APP_SITEMAP_SHOP_CACHE_SECONDS:3600}
 
 # Admin back-office authentication
 admin.password=${ADMIN_PASSWORD}

backend/src/test/java/com/printcalculator/service/admin/AdminShopProductControllerServiceTest.java

@@ -0,0 +1,137 @@
+package com.printcalculator.service.admin;
+
+import com.printcalculator.entity.ShopProduct;
+import com.printcalculator.entity.ShopProductModelAsset;
+import com.printcalculator.entity.ShopProductVariant;
+import com.printcalculator.repository.OrderItemRepository;
+import com.printcalculator.repository.QuoteLineItemRepository;
+import com.printcalculator.repository.ShopCategoryRepository;
+import com.printcalculator.repository.ShopProductModelAssetRepository;
+import com.printcalculator.repository.ShopProductRepository;
+import com.printcalculator.repository.ShopProductVariantRepository;
+import com.printcalculator.service.SlicerService;
+import com.printcalculator.service.media.PublicMediaQueryService;
+import com.printcalculator.service.shop.ShopStorageService;
+import com.printcalculator.service.storage.ClamAVService;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.extension.ExtendWith;
+import org.mockito.InOrder;
+import org.mockito.Mock;
+import org.mockito.junit.jupiter.MockitoExtension;
+
+import java.nio.file.Path;
+import java.util.List;
+import java.util.Optional;
+import java.util.UUID;
+
+import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.ArgumentMatchers.eq;
+import static org.mockito.Mockito.inOrder;
+import static org.mockito.Mockito.never;
+import static org.mockito.Mockito.verify;
+import static org.mockito.Mockito.when;
+
+@ExtendWith(MockitoExtension.class)
+class AdminShopProductControllerServiceTest {
+
+    @Mock
+    private ShopProductRepository shopProductRepository;
+    @Mock
+    private ShopCategoryRepository shopCategoryRepository;
+    @Mock
+    private ShopProductVariantRepository shopProductVariantRepository;
+    @Mock
+    private ShopProductModelAssetRepository shopProductModelAssetRepository;
+    @Mock
+    private QuoteLineItemRepository quoteLineItemRepository;
+    @Mock
+    private OrderItemRepository orderItemRepository;
+    @Mock
+    private PublicMediaQueryService publicMediaQueryService;
+    @Mock
+    private AdminMediaControllerService adminMediaControllerService;
+    @Mock
+    private ShopStorageService shopStorageService;
+    @Mock
+    private SlicerService slicerService;
+    @Mock
+    private ClamAVService clamAVService;
+
+    private AdminShopProductControllerService service;
+
+    @BeforeEach
+    void setUp() {
+        service = new AdminShopProductControllerService(
+                shopProductRepository,
+                shopCategoryRepository,
+                shopProductVariantRepository,
+                shopProductModelAssetRepository,
+                quoteLineItemRepository,
+                orderItemRepository,
+                publicMediaQueryService,
+                adminMediaControllerService,
+                shopStorageService,
+                slicerService,
+                clamAVService,
+                104857600L
+        );
+    }
+
+    @Test
+    void deleteProduct_shouldDeleteManagedDependenciesBeforeDeletingProduct() {
+        UUID productId = UUID.randomUUID();
+        UUID variantId = UUID.randomUUID();
+
+        ShopProduct product = new ShopProduct();
+        product.setId(productId);
+
+        ShopProductVariant variant = new ShopProductVariant();
+        variant.setId(variantId);
+        variant.setProduct(product);
+
+        ShopProductModelAsset asset = new ShopProductModelAsset();
+        asset.setId(UUID.randomUUID());
+        asset.setProduct(product);
+        asset.setStoredRelativePath("products/" + productId + "/model.stl");
+
+        when(shopProductRepository.findById(productId)).thenReturn(Optional.of(product));
+        when(quoteLineItemRepository.existsByShopProduct_Id(productId)).thenReturn(false);
+        when(orderItemRepository.existsByShopProduct_Id(productId)).thenReturn(false);
+        when(shopProductVariantRepository.findByProduct_IdOrderBySortOrderAscColorNameAsc(productId)).thenReturn(List.of(variant));
+        when(quoteLineItemRepository.existsByShopProductVariant_Id(variantId)).thenReturn(false);
+        when(orderItemRepository.existsByShopProductVariant_Id(variantId)).thenReturn(false);
+        when(shopProductModelAssetRepository.findByProduct_Id(productId)).thenReturn(Optional.of(asset));
+        when(shopStorageService.resolveStoredProductPath(asset.getStoredRelativePath(), productId))
+                .thenReturn(Path.of("/tmp/shop-model.stl"));
+
+        service.deleteProduct(productId);
+
+        InOrder inOrder = inOrder(shopProductModelAssetRepository, shopProductVariantRepository, shopProductRepository);
+        inOrder.verify(shopProductModelAssetRepository).delete(asset);
+        inOrder.verify(shopProductVariantRepository).deleteAll(List.of(variant));
+        inOrder.verify(shopProductRepository).delete(product);
+
+        verify(shopStorageService).resolveStoredProductPath(asset.getStoredRelativePath(), productId);
+    }
+
+    @Test
+    void deleteProduct_shouldSkipDependencyDeletesWhenNothingIsAttached() {
+        UUID productId = UUID.randomUUID();
+
+        ShopProduct product = new ShopProduct();
+        product.setId(productId);
+
+        when(shopProductRepository.findById(productId)).thenReturn(Optional.of(product));
+        when(quoteLineItemRepository.existsByShopProduct_Id(productId)).thenReturn(false);
+        when(orderItemRepository.existsByShopProduct_Id(productId)).thenReturn(false);
+        when(shopProductVariantRepository.findByProduct_IdOrderBySortOrderAscColorNameAsc(productId)).thenReturn(List.of());
+        when(shopProductModelAssetRepository.findByProduct_Id(productId)).thenReturn(Optional.empty());
+
+        service.deleteProduct(productId);
+
+        verify(shopProductRepository).delete(product);
+        verify(shopProductVariantRepository, never()).deleteAll(any());
+        verify(shopProductModelAssetRepository, never()).delete(any());
+    }
+}

backend/src/test/java/com/printcalculator/service/media/MediaFfmpegServiceTest.java

@@ -10,6 +10,7 @@ import java.nio.file.attribute.PosixFilePermission;
 import java.util.Set;
 
 import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertFalse;
 import static org.junit.jupiter.api.Assertions.assertTrue;
 import static org.junit.jupiter.api.Assertions.assertThrows;
 
@@ -80,6 +81,12 @@ class MediaFfmpegServiceTest {
                         EOF
                           exit 0
                         fi
+                        if [ "$1" = "-hide_banner" ] && [ "$2" = "-muxers" ]; then
+                          cat <<'EOF'
+                         E avif
+                        EOF
+                          exit 0
+                        fi
 
                         for arg in "$@"; do
                           if [ "$arg" = "-still-picture" ]; then
@@ -117,4 +124,42 @@ class MediaFfmpegServiceTest {
         assertTrue(Files.exists(target));
         assertEquals("ok", Files.readString(target));
     }
+
+    @Test
+    void canEncode_avifShouldRequireMuxerAvailability() throws Exception {
+        Path fakeFfmpeg = tempDir.resolve("fake-ffmpeg-no-avif-muxer.sh");
+        Files.writeString(
+                fakeFfmpeg,
+                """
+                        #!/bin/sh
+                        if [ "$1" = "-hide_banner" ] && [ "$2" = "-encoders" ]; then
+                          cat <<'EOF'
+                         V..... mjpeg
+                         V..... libaom-av1
+                        EOF
+                          exit 0
+                        fi
+                        if [ "$1" = "-hide_banner" ] && [ "$2" = "-muxers" ]; then
+                          cat <<'EOF'
+                         E mp4
+                        EOF
+                          exit 0
+                        fi
+                        exit 0
+                        """
+        );
+        Files.setPosixFilePermissions(
+                fakeFfmpeg,
+                Set.of(
+                        PosixFilePermission.OWNER_READ,
+                        PosixFilePermission.OWNER_WRITE,
+                        PosixFilePermission.OWNER_EXECUTE
+                )
+        );
+
+        MediaFfmpegService service = new MediaFfmpegService(fakeFfmpeg.toString());
+
+        assertTrue(service.canEncode("JPEG"));
+        assertFalse(service.canEncode("AVIF"));
+    }
 }

backend/src/test/java/com/printcalculator/service/shop/ShopSitemapServiceTest.java

@@ -0,0 +1,122 @@
+package com.printcalculator.service.shop;
+
+import com.printcalculator.entity.ShopCategory;
+import com.printcalculator.entity.ShopProduct;
+import com.printcalculator.repository.ShopCategoryRepository;
+import com.printcalculator.repository.ShopProductRepository;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.extension.ExtendWith;
+import org.mockito.Mock;
+import org.mockito.junit.jupiter.MockitoExtension;
+
+import java.time.Clock;
+import java.time.Instant;
+import java.time.OffsetDateTime;
+import java.time.ZoneOffset;
+import java.util.List;
+import java.util.UUID;
+
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+import static org.mockito.Mockito.times;
+import static org.mockito.Mockito.verify;
+import static org.mockito.Mockito.when;
+
+@ExtendWith(MockitoExtension.class)
+class ShopSitemapServiceTest {
+
+    @Mock
+    private ShopCategoryRepository shopCategoryRepository;
+    @Mock
+    private ShopProductRepository shopProductRepository;
+
+    private ShopSitemapService service;
+
+    @BeforeEach
+    void setUp() {
+        Clock fixedClock = Clock.fixed(Instant.parse("2026-03-11T10:00:00Z"), ZoneOffset.UTC);
+        service = new ShopSitemapService(
+                shopCategoryRepository,
+                shopProductRepository,
+                "https://3d-fab.ch/",
+                900,
+                fixedClock
+        );
+    }
+
+    @Test
+    void getShopSitemapXml_shouldGenerateLocalizedCategoryAndProductEntries() {
+        ShopCategory visibleCategory = new ShopCategory();
+        visibleCategory.setId(UUID.fromString("21111111-1111-1111-1111-111111111111"));
+        visibleCategory.setSlug("accessori");
+        visibleCategory.setIndexable(true);
+        visibleCategory.setIsActive(true);
+        visibleCategory.setUpdatedAt(OffsetDateTime.parse("2026-03-10T08:00:00Z"));
+
+        ShopCategory hiddenCategory = new ShopCategory();
+        hiddenCategory.setId(UUID.fromString("22222222-2222-2222-2222-222222222222"));
+        hiddenCategory.setSlug("bozza");
+        hiddenCategory.setIndexable(false);
+        hiddenCategory.setIsActive(true);
+        hiddenCategory.setUpdatedAt(OffsetDateTime.parse("2026-03-10T09:00:00Z"));
+
+        ShopProduct indexedProduct = new ShopProduct();
+        indexedProduct.setId(UUID.fromString("123e4567-e89b-12d3-a456-426614174000"));
+        indexedProduct.setCategory(visibleCategory);
+        indexedProduct.setSlug("supporto-bici");
+        indexedProduct.setNameIt("Supporto bici");
+        indexedProduct.setNameEn("Bike Holder");
+        indexedProduct.setNameDe("Fahrrad Halter");
+        indexedProduct.setNameFr("Support velo");
+        indexedProduct.setIndexable(true);
+        indexedProduct.setIsActive(true);
+        indexedProduct.setUpdatedAt(OffsetDateTime.parse("2026-03-11T07:30:00Z"));
+
+        ShopProduct hiddenProduct = new ShopProduct();
+        hiddenProduct.setId(UUID.fromString("33333333-3333-3333-3333-333333333333"));
+        hiddenProduct.setCategory(visibleCategory);
+        hiddenProduct.setSlug("draft");
+        hiddenProduct.setIndexable(false);
+        hiddenProduct.setIsActive(true);
+        hiddenProduct.setUpdatedAt(OffsetDateTime.parse("2026-03-11T08:00:00Z"));
+
+        when(shopCategoryRepository.findAllByIsActiveTrueOrderBySortOrderAscNameAsc())
+                .thenReturn(List.of(visibleCategory, hiddenCategory));
+        when(shopProductRepository.findAllByIsActiveTrueOrderByIsFeaturedDescSortOrderAscNameAsc())
+                .thenReturn(List.of(indexedProduct, hiddenProduct));
+
+        String xml = service.getShopSitemapXml();
+
+        assertTrue(xml.contains("<loc>https://3d-fab.ch/it/shop/accessori</loc>"));
+        assertTrue(xml.contains("<loc>https://3d-fab.ch/en/shop/accessori</loc>"));
+        assertTrue(xml.contains("<loc>https://3d-fab.ch/de/shop/accessori</loc>"));
+        assertTrue(xml.contains("<loc>https://3d-fab.ch/fr/shop/accessori</loc>"));
+        assertTrue(xml.contains("hreflang=\"en\" href=\"https://3d-fab.ch/en/shop/accessori\""));
+        assertFalse(xml.contains("https://3d-fab.ch/it/shop/bozza"));
+
+        assertTrue(xml.contains("<loc>https://3d-fab.ch/it/shop/p/123e4567-supporto-bici</loc>"));
+        assertTrue(xml.contains("<loc>https://3d-fab.ch/en/shop/p/123e4567-bike-holder</loc>"));
+        assertTrue(xml.contains("<loc>https://3d-fab.ch/de/shop/p/123e4567-fahrrad-halter</loc>"));
+        assertTrue(xml.contains("<loc>https://3d-fab.ch/fr/shop/p/123e4567-support-velo</loc>"));
+        assertTrue(xml.contains("hreflang=\"en\" href=\"https://3d-fab.ch/en/shop/p/123e4567-bike-holder\""));
+        assertTrue(xml.contains("hreflang=\"de\" href=\"https://3d-fab.ch/de/shop/p/123e4567-fahrrad-halter\""));
+        assertTrue(xml.contains("hreflang=\"x-default\" href=\"https://3d-fab.ch/it/shop/p/123e4567-supporto-bici\""));
+        assertTrue(xml.contains("<lastmod>2026-03-11T07:30:00Z</lastmod>"));
+        assertFalse(xml.contains("33333333-draft"));
+    }
+
+    @Test
+    void getShopSitemapXml_shouldServeCachedPayloadWithinTtl() {
+        when(shopCategoryRepository.findAllByIsActiveTrueOrderBySortOrderAscNameAsc()).thenReturn(List.of());
+        when(shopProductRepository.findAllByIsActiveTrueOrderByIsFeaturedDescSortOrderAscNameAsc()).thenReturn(List.of());
+
+        String firstXml = service.getShopSitemapXml();
+        String secondXml = service.getShopSitemapXml();
+
+        assertTrue(firstXml.contains("<urlset"));
+        assertTrue(secondXml.contains("<urlset"));
+        verify(shopCategoryRepository, times(1)).findAllByIsActiveTrueOrderBySortOrderAscNameAsc();
+        verify(shopProductRepository, times(1)).findAllByIsActiveTrueOrderByIsFeaturedDescSortOrderAscNameAsc();
+    }
+}

db.sql

@@ -1055,7 +1055,15 @@ CREATE TABLE IF NOT EXISTS shop_product
     description_de      text,
     description_fr      text,
     seo_title           text,
+    seo_title_it        text,
+    seo_title_en        text,
+    seo_title_de        text,
+    seo_title_fr        text,
     seo_description     text,
+    seo_description_it  text,
+    seo_description_en  text,
+    seo_description_de  text,
+    seo_description_fr  text,
     og_title            text,
     og_description      text,
     indexable           boolean     NOT NULL DEFAULT true,
@@ -1066,6 +1074,16 @@ CREATE TABLE IF NOT EXISTS shop_product
     updated_at          timestamptz NOT NULL DEFAULT now()
 );
 
+ALTER TABLE shop_product
+    ADD COLUMN IF NOT EXISTS seo_title_it text,
+    ADD COLUMN IF NOT EXISTS seo_title_en text,
+    ADD COLUMN IF NOT EXISTS seo_title_de text,
+    ADD COLUMN IF NOT EXISTS seo_title_fr text,
+    ADD COLUMN IF NOT EXISTS seo_description_it text,
+    ADD COLUMN IF NOT EXISTS seo_description_en text,
+    ADD COLUMN IF NOT EXISTS seo_description_de text,
+    ADD COLUMN IF NOT EXISTS seo_description_fr text;
+
 CREATE INDEX IF NOT EXISTS ix_shop_product_category_active_sort
     ON shop_product (shop_category_id, is_active, sort_order, created_at DESC);
 

docker-compose.deploy.yml

@@ -33,7 +33,7 @@ services:
       - PROFILES_DIR=/app/profiles
       - MEDIA_STORAGE_ROOT=${MEDIA_STORAGE_ROOT:-/app/storage_media}
       - SHOP_STORAGE_ROOT=${SHOP_STORAGE_ROOT:-/app/storage_shop}
-      - MEDIA_FFMPEG_PATH=${MEDIA_FFMPEG_PATH:-ffmpeg}
+      - MEDIA_FFMPEG_PATH=${MEDIA_FFMPEG_PATH:-/usr/local/bin/ffmpeg-media}
       - MEDIA_UPLOAD_MAX_FILE_SIZE_BYTES=${MEDIA_UPLOAD_MAX_FILE_SIZE_BYTES:-26214400}
     restart: always
     logging:

frontend/Dockerfile

@@ -1,14 +1,13 @@
-# Stage 1: Build
-FROM node:20 as build
+FROM node:22-alpine
 
 WORKDIR /app
 COPY package*.json ./
-RUN npm install
+RUN npm ci --legacy-peer-deps
 COPY . .
-RUN npm run build --configuration=production
+RUN npm run build -- --configuration=production
 
-# Stage 2: Serve
-FROM nginx:alpine
-COPY --from=build /app/dist/frontend/browser /usr/share/nginx/html
-COPY nginx.conf /etc/nginx/conf.d/default.conf
+ENV NODE_ENV=production
+ENV PORT=80
 EXPOSE 80
+
+CMD ["node", "dist/frontend/server/server.mjs"]

frontend/Dockerfile.dev

@@ -1,15 +1,15 @@
-# Stage 1: Build
-FROM node:20 as build
+FROM node:22-alpine
 
 WORKDIR /app
 COPY package*.json ./
-RUN npm install
+RUN npm ci --legacy-peer-deps
 COPY . .
+
 # Use development configuration to pick up environment.ts (localhost)
 RUN npm run build -- --configuration=development
 
-# Stage 2: Serve
-FROM nginx:alpine
-COPY --from=build /app/dist/frontend/browser /usr/share/nginx/html
-COPY nginx.conf /etc/nginx/conf.d/default.conf
+ENV NODE_ENV=development
+ENV PORT=80
 EXPOSE 80
+
+CMD ["node", "dist/frontend/server/server.mjs"]

frontend/angular.json

@@ -36,7 +36,12 @@
               "@angular/material/prebuilt-themes/azure-blue.css",
               "src/styles.scss"
             ],
-            "scripts": []
+            "scripts": [],
+            "server": "src/main.server.ts",
+            "prerender": false,
+            "ssr": {
+              "entry": "src/server.ts"
+            }
           },
           "configurations": {
             "production": {

frontend/package.json

@@ -6,35 +6,41 @@
     "start": "ng serve",
     "build": "ng build",
     "watch": "ng build --watch --configuration development",
-    "test": "ng test"
+    "test": "ng test",
+    "serve:ssr:frontend": "node dist/frontend/server/server.mjs"
   },
   "private": true,
   "engines": {
     "node": "^22.0.0"
   },
   "dependencies": {
-    "@angular/cdk": "^19.2.19",
-    "@angular/common": "^19.2.18",
-    "@angular/compiler": "^19.2.18",
-    "@angular/core": "^19.2.18",
-    "@angular/forms": "^19.2.18",
-    "@angular/material": "^19.2.19",
-    "@angular/platform-browser": "^19.2.18",
-    "@angular/platform-browser-dynamic": "^19.2.18",
-    "@angular/router": "^19.2.18",
+    "@angular/cdk": "19.2.19",
+    "@angular/common": "19.2.19",
+    "@angular/compiler": "19.2.19",
+    "@angular/core": "19.2.19",
+    "@angular/forms": "19.2.19",
+    "@angular/material": "19.2.19",
+    "@angular/platform-browser": "19.2.19",
+    "@angular/platform-browser-dynamic": "19.2.19",
+    "@angular/platform-server": "19.2.19",
+    "@angular/router": "19.2.19",
+    "@angular/ssr": "19.2.19",
     "@ngx-translate/core": "^17.0.0",
     "@ngx-translate/http-loader": "^17.0.0",
     "@types/three": "^0.182.0",
+    "express": "^4.18.2",
     "rxjs": "~7.8.0",
     "three": "^0.182.0",
     "tslib": "^2.3.0",
     "zone.js": "~0.15.0"
   },
   "devDependencies": {
-    "@angular-devkit/build-angular": "^19.2.19",
-    "@angular/cli": "^19.2.19",
-    "@angular/compiler-cli": "^19.2.18",
+    "@angular-devkit/build-angular": "19.2.19",
+    "@angular/cli": "19.2.19",
+    "@angular/compiler-cli": "19.2.19",
+    "@types/express": "^4.17.17",
     "@types/jasmine": "~5.1.0",
+    "@types/node": "^18.18.0",
     "jasmine-core": "~5.6.0",
     "karma": "~6.4.0",
     "karma-chrome-launcher": "~3.2.0",

frontend/public/robots.txt

@@ -5,17 +5,19 @@ Disallow: /admin
 Disallow: /admin/
 Disallow: /*/admin
 Disallow: /*/admin/
+Disallow: /order
 Disallow: /order/
+Disallow: /*/order
 Disallow: /*/order/
+Disallow: /co$
 Disallow: /co/
+Disallow: /*/co$
 Disallow: /*/co/
 Disallow: /checkout
 Disallow: /checkout/
+Disallow: /checkout/cad
 Disallow: /*/checkout
 Disallow: /*/checkout/
-Disallow: /shop
-Disallow: /shop/
-Disallow: /*/shop
-Disallow: /*/shop/
+Disallow: /*/checkout/cad
 
 Sitemap: https://3d-fab.ch/sitemap.xml

frontend/public/sitemap-static.xml

@@ -0,0 +1,330 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9" xmlns:xhtml="http://www.w3.org/1999/xhtml">
+  <url>
+    <loc>https://3d-fab.ch/it</loc>
+    <xhtml:link rel="alternate" hreflang="it" href="https://3d-fab.ch/it" />
+    <xhtml:link rel="alternate" hreflang="en" href="https://3d-fab.ch/en" />
+    <xhtml:link rel="alternate" hreflang="de" href="https://3d-fab.ch/de" />
+    <xhtml:link rel="alternate" hreflang="fr" href="https://3d-fab.ch/fr" />
+    <xhtml:link rel="alternate" hreflang="x-default" href="https://3d-fab.ch/it" />
+    <changefreq>weekly</changefreq>
+    <priority>1.0</priority>
+  </url>
+  <url>
+    <loc>https://3d-fab.ch/en</loc>
+    <xhtml:link rel="alternate" hreflang="it" href="https://3d-fab.ch/it" />
+    <xhtml:link rel="alternate" hreflang="en" href="https://3d-fab.ch/en" />
+    <xhtml:link rel="alternate" hreflang="de" href="https://3d-fab.ch/de" />
+    <xhtml:link rel="alternate" hreflang="fr" href="https://3d-fab.ch/fr" />
+    <xhtml:link rel="alternate" hreflang="x-default" href="https://3d-fab.ch/it" />
+    <changefreq>weekly</changefreq>
+    <priority>1.0</priority>
+  </url>
+  <url>
+    <loc>https://3d-fab.ch/de</loc>
+    <xhtml:link rel="alternate" hreflang="it" href="https://3d-fab.ch/it" />
+    <xhtml:link rel="alternate" hreflang="en" href="https://3d-fab.ch/en" />
+    <xhtml:link rel="alternate" hreflang="de" href="https://3d-fab.ch/de" />
+    <xhtml:link rel="alternate" hreflang="fr" href="https://3d-fab.ch/fr" />
+    <xhtml:link rel="alternate" hreflang="x-default" href="https://3d-fab.ch/it" />
+    <changefreq>weekly</changefreq>
+    <priority>1.0</priority>
+  </url>
+  <url>
+    <loc>https://3d-fab.ch/fr</loc>
+    <xhtml:link rel="alternate" hreflang="it" href="https://3d-fab.ch/it" />
+    <xhtml:link rel="alternate" hreflang="en" href="https://3d-fab.ch/en" />
+    <xhtml:link rel="alternate" hreflang="de" href="https://3d-fab.ch/de" />
+    <xhtml:link rel="alternate" hreflang="fr" href="https://3d-fab.ch/fr" />
+    <xhtml:link rel="alternate" hreflang="x-default" href="https://3d-fab.ch/it" />
+    <changefreq>weekly</changefreq>
+    <priority>1.0</priority>
+  </url>
+
+  <url>
+    <loc>https://3d-fab.ch/it/calculator/basic</loc>
+    <xhtml:link rel="alternate" hreflang="it" href="https://3d-fab.ch/it/calculator/basic" />
+    <xhtml:link rel="alternate" hreflang="en" href="https://3d-fab.ch/en/calculator/basic" />
+    <xhtml:link rel="alternate" hreflang="de" href="https://3d-fab.ch/de/calculator/basic" />
+    <xhtml:link rel="alternate" hreflang="fr" href="https://3d-fab.ch/fr/calculator/basic" />
+    <xhtml:link rel="alternate" hreflang="x-default" href="https://3d-fab.ch/it/calculator/basic" />
+    <changefreq>weekly</changefreq>
+    <priority>0.9</priority>
+  </url>
+  <url>
+    <loc>https://3d-fab.ch/en/calculator/basic</loc>
+    <xhtml:link rel="alternate" hreflang="it" href="https://3d-fab.ch/it/calculator/basic" />
+    <xhtml:link rel="alternate" hreflang="en" href="https://3d-fab.ch/en/calculator/basic" />
+    <xhtml:link rel="alternate" hreflang="de" href="https://3d-fab.ch/de/calculator/basic" />
+    <xhtml:link rel="alternate" hreflang="fr" href="https://3d-fab.ch/fr/calculator/basic" />
+    <xhtml:link rel="alternate" hreflang="x-default" href="https://3d-fab.ch/it/calculator/basic" />
+    <changefreq>weekly</changefreq>
+    <priority>0.9</priority>
+  </url>
+  <url>
+    <loc>https://3d-fab.ch/de/calculator/basic</loc>
+    <xhtml:link rel="alternate" hreflang="it" href="https://3d-fab.ch/it/calculator/basic" />
+    <xhtml:link rel="alternate" hreflang="en" href="https://3d-fab.ch/en/calculator/basic" />
+    <xhtml:link rel="alternate" hreflang="de" href="https://3d-fab.ch/de/calculator/basic" />
+    <xhtml:link rel="alternate" hreflang="fr" href="https://3d-fab.ch/fr/calculator/basic" />
+    <xhtml:link rel="alternate" hreflang="x-default" href="https://3d-fab.ch/it/calculator/basic" />
+    <changefreq>weekly</changefreq>
+    <priority>0.9</priority>
+  </url>
+  <url>
+    <loc>https://3d-fab.ch/fr/calculator/basic</loc>
+    <xhtml:link rel="alternate" hreflang="it" href="https://3d-fab.ch/it/calculator/basic" />
+    <xhtml:link rel="alternate" hreflang="en" href="https://3d-fab.ch/en/calculator/basic" />
+    <xhtml:link rel="alternate" hreflang="de" href="https://3d-fab.ch/de/calculator/basic" />
+    <xhtml:link rel="alternate" hreflang="fr" href="https://3d-fab.ch/fr/calculator/basic" />
+    <xhtml:link rel="alternate" hreflang="x-default" href="https://3d-fab.ch/it/calculator/basic" />
+    <changefreq>weekly</changefreq>
+    <priority>0.9</priority>
+  </url>
+
+  <url>
+    <loc>https://3d-fab.ch/it/calculator/advanced</loc>
+    <xhtml:link rel="alternate" hreflang="it" href="https://3d-fab.ch/it/calculator/advanced" />
+    <xhtml:link rel="alternate" hreflang="en" href="https://3d-fab.ch/en/calculator/advanced" />
+    <xhtml:link rel="alternate" hreflang="de" href="https://3d-fab.ch/de/calculator/advanced" />
+    <xhtml:link rel="alternate" hreflang="fr" href="https://3d-fab.ch/fr/calculator/advanced" />
+    <xhtml:link rel="alternate" hreflang="x-default" href="https://3d-fab.ch/it/calculator/advanced" />
+    <changefreq>weekly</changefreq>
+    <priority>0.8</priority>
+  </url>
+  <url>
+    <loc>https://3d-fab.ch/en/calculator/advanced</loc>
+    <xhtml:link rel="alternate" hreflang="it" href="https://3d-fab.ch/it/calculator/advanced" />
+    <xhtml:link rel="alternate" hreflang="en" href="https://3d-fab.ch/en/calculator/advanced" />
+    <xhtml:link rel="alternate" hreflang="de" href="https://3d-fab.ch/de/calculator/advanced" />
+    <xhtml:link rel="alternate" hreflang="fr" href="https://3d-fab.ch/fr/calculator/advanced" />
+    <xhtml:link rel="alternate" hreflang="x-default" href="https://3d-fab.ch/it/calculator/advanced" />
+    <changefreq>weekly</changefreq>
+    <priority>0.8</priority>
+  </url>
+  <url>
+    <loc>https://3d-fab.ch/de/calculator/advanced</loc>
+    <xhtml:link rel="alternate" hreflang="it" href="https://3d-fab.ch/it/calculator/advanced" />
+    <xhtml:link rel="alternate" hreflang="en" href="https://3d-fab.ch/en/calculator/advanced" />
+    <xhtml:link rel="alternate" hreflang="de" href="https://3d-fab.ch/de/calculator/advanced" />
+    <xhtml:link rel="alternate" hreflang="fr" href="https://3d-fab.ch/fr/calculator/advanced" />
+    <xhtml:link rel="alternate" hreflang="x-default" href="https://3d-fab.ch/it/calculator/advanced" />
+    <changefreq>weekly</changefreq>
+    <priority>0.8</priority>
+  </url>
+  <url>
+    <loc>https://3d-fab.ch/fr/calculator/advanced</loc>
+    <xhtml:link rel="alternate" hreflang="it" href="https://3d-fab.ch/it/calculator/advanced" />
+    <xhtml:link rel="alternate" hreflang="en" href="https://3d-fab.ch/en/calculator/advanced" />
+    <xhtml:link rel="alternate" hreflang="de" href="https://3d-fab.ch/de/calculator/advanced" />
+    <xhtml:link rel="alternate" hreflang="fr" href="https://3d-fab.ch/fr/calculator/advanced" />
+    <xhtml:link rel="alternate" hreflang="x-default" href="https://3d-fab.ch/it/calculator/advanced" />
+    <changefreq>weekly</changefreq>
+    <priority>0.8</priority>
+  </url>
+
+  <url>
+    <loc>https://3d-fab.ch/it/shop</loc>
+    <xhtml:link rel="alternate" hreflang="it" href="https://3d-fab.ch/it/shop" />
+    <xhtml:link rel="alternate" hreflang="en" href="https://3d-fab.ch/en/shop" />
+    <xhtml:link rel="alternate" hreflang="de" href="https://3d-fab.ch/de/shop" />
+    <xhtml:link rel="alternate" hreflang="fr" href="https://3d-fab.ch/fr/shop" />
+    <xhtml:link rel="alternate" hreflang="x-default" href="https://3d-fab.ch/it/shop" />
+    <changefreq>weekly</changefreq>
+    <priority>0.8</priority>
+  </url>
+  <url>
+    <loc>https://3d-fab.ch/en/shop</loc>
+    <xhtml:link rel="alternate" hreflang="it" href="https://3d-fab.ch/it/shop" />
+    <xhtml:link rel="alternate" hreflang="en" href="https://3d-fab.ch/en/shop" />
+    <xhtml:link rel="alternate" hreflang="de" href="https://3d-fab.ch/de/shop" />
+    <xhtml:link rel="alternate" hreflang="fr" href="https://3d-fab.ch/fr/shop" />
+    <xhtml:link rel="alternate" hreflang="x-default" href="https://3d-fab.ch/it/shop" />
+    <changefreq>weekly</changefreq>
+    <priority>0.8</priority>
+  </url>
+  <url>
+    <loc>https://3d-fab.ch/de/shop</loc>
+    <xhtml:link rel="alternate" hreflang="it" href="https://3d-fab.ch/it/shop" />
+    <xhtml:link rel="alternate" hreflang="en" href="https://3d-fab.ch/en/shop" />
+    <xhtml:link rel="alternate" hreflang="de" href="https://3d-fab.ch/de/shop" />
+    <xhtml:link rel="alternate" hreflang="fr" href="https://3d-fab.ch/fr/shop" />
+    <xhtml:link rel="alternate" hreflang="x-default" href="https://3d-fab.ch/it/shop" />
+    <changefreq>weekly</changefreq>
+    <priority>0.8</priority>
+  </url>
+  <url>
+    <loc>https://3d-fab.ch/fr/shop</loc>
+    <xhtml:link rel="alternate" hreflang="it" href="https://3d-fab.ch/it/shop" />
+    <xhtml:link rel="alternate" hreflang="en" href="https://3d-fab.ch/en/shop" />
+    <xhtml:link rel="alternate" hreflang="de" href="https://3d-fab.ch/de/shop" />
+    <xhtml:link rel="alternate" hreflang="fr" href="https://3d-fab.ch/fr/shop" />
+    <xhtml:link rel="alternate" hreflang="x-default" href="https://3d-fab.ch/it/shop" />
+    <changefreq>weekly</changefreq>
+    <priority>0.8</priority>
+  </url>
+
+  <url>
+    <loc>https://3d-fab.ch/it/about</loc>
+    <xhtml:link rel="alternate" hreflang="it" href="https://3d-fab.ch/it/about" />
+    <xhtml:link rel="alternate" hreflang="en" href="https://3d-fab.ch/en/about" />
+    <xhtml:link rel="alternate" hreflang="de" href="https://3d-fab.ch/de/about" />
+    <xhtml:link rel="alternate" hreflang="fr" href="https://3d-fab.ch/fr/about" />
+    <xhtml:link rel="alternate" hreflang="x-default" href="https://3d-fab.ch/it/about" />
+    <changefreq>monthly</changefreq>
+    <priority>0.7</priority>
+  </url>
+  <url>
+    <loc>https://3d-fab.ch/en/about</loc>
+    <xhtml:link rel="alternate" hreflang="it" href="https://3d-fab.ch/it/about" />
+    <xhtml:link rel="alternate" hreflang="en" href="https://3d-fab.ch/en/about" />
+    <xhtml:link rel="alternate" hreflang="de" href="https://3d-fab.ch/de/about" />
+    <xhtml:link rel="alternate" hreflang="fr" href="https://3d-fab.ch/fr/about" />
+    <xhtml:link rel="alternate" hreflang="x-default" href="https://3d-fab.ch/it/about" />
+    <changefreq>monthly</changefreq>
+    <priority>0.7</priority>
+  </url>
+  <url>
+    <loc>https://3d-fab.ch/de/about</loc>
+    <xhtml:link rel="alternate" hreflang="it" href="https://3d-fab.ch/it/about" />
+    <xhtml:link rel="alternate" hreflang="en" href="https://3d-fab.ch/en/about" />
+    <xhtml:link rel="alternate" hreflang="de" href="https://3d-fab.ch/de/about" />
+    <xhtml:link rel="alternate" hreflang="fr" href="https://3d-fab.ch/fr/about" />
+    <xhtml:link rel="alternate" hreflang="x-default" href="https://3d-fab.ch/it/about" />
+    <changefreq>monthly</changefreq>
+    <priority>0.7</priority>
+  </url>
+  <url>
+    <loc>https://3d-fab.ch/fr/about</loc>
+    <xhtml:link rel="alternate" hreflang="it" href="https://3d-fab.ch/it/about" />
+    <xhtml:link rel="alternate" hreflang="en" href="https://3d-fab.ch/en/about" />
+    <xhtml:link rel="alternate" hreflang="de" href="https://3d-fab.ch/de/about" />
+    <xhtml:link rel="alternate" hreflang="fr" href="https://3d-fab.ch/fr/about" />
+    <xhtml:link rel="alternate" hreflang="x-default" href="https://3d-fab.ch/it/about" />
+    <changefreq>monthly</changefreq>
+    <priority>0.7</priority>
+  </url>
+
+  <url>
+    <loc>https://3d-fab.ch/it/contact</loc>
+    <xhtml:link rel="alternate" hreflang="it" href="https://3d-fab.ch/it/contact" />
+    <xhtml:link rel="alternate" hreflang="en" href="https://3d-fab.ch/en/contact" />
+    <xhtml:link rel="alternate" hreflang="de" href="https://3d-fab.ch/de/contact" />
+    <xhtml:link rel="alternate" hreflang="fr" href="https://3d-fab.ch/fr/contact" />
+    <xhtml:link rel="alternate" hreflang="x-default" href="https://3d-fab.ch/it/contact" />
+    <changefreq>monthly</changefreq>
+    <priority>0.7</priority>
+  </url>
+  <url>
+    <loc>https://3d-fab.ch/en/contact</loc>
+    <xhtml:link rel="alternate" hreflang="it" href="https://3d-fab.ch/it/contact" />
+    <xhtml:link rel="alternate" hreflang="en" href="https://3d-fab.ch/en/contact" />
+    <xhtml:link rel="alternate" hreflang="de" href="https://3d-fab.ch/de/contact" />
+    <xhtml:link rel="alternate" hreflang="fr" href="https://3d-fab.ch/fr/contact" />
+    <xhtml:link rel="alternate" hreflang="x-default" href="https://3d-fab.ch/it/contact" />
+    <changefreq>monthly</changefreq>
+    <priority>0.7</priority>
+  </url>
+  <url>
+    <loc>https://3d-fab.ch/de/contact</loc>
+    <xhtml:link rel="alternate" hreflang="it" href="https://3d-fab.ch/it/contact" />
+    <xhtml:link rel="alternate" hreflang="en" href="https://3d-fab.ch/en/contact" />
+    <xhtml:link rel="alternate" hreflang="de" href="https://3d-fab.ch/de/contact" />
+    <xhtml:link rel="alternate" hreflang="fr" href="https://3d-fab.ch/fr/contact" />
+    <xhtml:link rel="alternate" hreflang="x-default" href="https://3d-fab.ch/it/contact" />
+    <changefreq>monthly</changefreq>
+    <priority>0.7</priority>
+  </url>
+  <url>
+    <loc>https://3d-fab.ch/fr/contact</loc>
+    <xhtml:link rel="alternate" hreflang="it" href="https://3d-fab.ch/it/contact" />
+    <xhtml:link rel="alternate" hreflang="en" href="https://3d-fab.ch/en/contact" />
+    <xhtml:link rel="alternate" hreflang="de" href="https://3d-fab.ch/de/contact" />
+    <xhtml:link rel="alternate" hreflang="fr" href="https://3d-fab.ch/fr/contact" />
+    <xhtml:link rel="alternate" hreflang="x-default" href="https://3d-fab.ch/it/contact" />
+    <changefreq>monthly</changefreq>
+    <priority>0.7</priority>
+  </url>
+
+  <url>
+    <loc>https://3d-fab.ch/it/privacy</loc>
+    <xhtml:link rel="alternate" hreflang="it" href="https://3d-fab.ch/it/privacy" />
+    <xhtml:link rel="alternate" hreflang="en" href="https://3d-fab.ch/en/privacy" />
+    <xhtml:link rel="alternate" hreflang="de" href="https://3d-fab.ch/de/privacy" />
+    <xhtml:link rel="alternate" hreflang="fr" href="https://3d-fab.ch/fr/privacy" />
+    <xhtml:link rel="alternate" hreflang="x-default" href="https://3d-fab.ch/it/privacy" />
+    <changefreq>yearly</changefreq>
+    <priority>0.4</priority>
+  </url>
+  <url>
+    <loc>https://3d-fab.ch/en/privacy</loc>
+    <xhtml:link rel="alternate" hreflang="it" href="https://3d-fab.ch/it/privacy" />
+    <xhtml:link rel="alternate" hreflang="en" href="https://3d-fab.ch/en/privacy" />
+    <xhtml:link rel="alternate" hreflang="de" href="https://3d-fab.ch/de/privacy" />
+    <xhtml:link rel="alternate" hreflang="fr" href="https://3d-fab.ch/fr/privacy" />
+    <xhtml:link rel="alternate" hreflang="x-default" href="https://3d-fab.ch/it/privacy" />
+    <changefreq>yearly</changefreq>
+    <priority>0.4</priority>
+  </url>
+  <url>
+    <loc>https://3d-fab.ch/de/privacy</loc>
+    <xhtml:link rel="alternate" hreflang="it" href="https://3d-fab.ch/it/privacy" />
+    <xhtml:link rel="alternate" hreflang="en" href="https://3d-fab.ch/en/privacy" />
+    <xhtml:link rel="alternate" hreflang="de" href="https://3d-fab.ch/de/privacy" />
+    <xhtml:link rel="alternate" hreflang="fr" href="https://3d-fab.ch/fr/privacy" />
+    <xhtml:link rel="alternate" hreflang="x-default" href="https://3d-fab.ch/it/privacy" />
+    <changefreq>yearly</changefreq>
+    <priority>0.4</priority>
+  </url>
+  <url>
+    <loc>https://3d-fab.ch/fr/privacy</loc>
+    <xhtml:link rel="alternate" hreflang="it" href="https://3d-fab.ch/it/privacy" />
+    <xhtml:link rel="alternate" hreflang="en" href="https://3d-fab.ch/en/privacy" />
+    <xhtml:link rel="alternate" hreflang="de" href="https://3d-fab.ch/de/privacy" />
+    <xhtml:link rel="alternate" hreflang="fr" href="https://3d-fab.ch/fr/privacy" />
+    <xhtml:link rel="alternate" hreflang="x-default" href="https://3d-fab.ch/it/privacy" />
+    <changefreq>yearly</changefreq>
+    <priority>0.4</priority>
+  </url>
+
+  <url>
+    <loc>https://3d-fab.ch/it/terms</loc>
+    <xhtml:link rel="alternate" hreflang="it" href="https://3d-fab.ch/it/terms" />
+    <xhtml:link rel="alternate" hreflang="en" href="https://3d-fab.ch/en/terms" />
+    <xhtml:link rel="alternate" hreflang="de" href="https://3d-fab.ch/de/terms" />
+    <xhtml:link rel="alternate" hreflang="fr" href="https://3d-fab.ch/fr/terms" />
+    <xhtml:link rel="alternate" hreflang="x-default" href="https://3d-fab.ch/it/terms" />
+    <changefreq>yearly</changefreq>
+    <priority>0.4</priority>
+  </url>
+  <url>
+    <loc>https://3d-fab.ch/en/terms</loc>
+    <xhtml:link rel="alternate" hreflang="it" href="https://3d-fab.ch/it/terms" />
+    <xhtml:link rel="alternate" hreflang="en" href="https://3d-fab.ch/en/terms" />
+    <xhtml:link rel="alternate" hreflang="de" href="https://3d-fab.ch/de/terms" />
+    <xhtml:link rel="alternate" hreflang="fr" href="https://3d-fab.ch/fr/terms" />
+    <xhtml:link rel="alternate" hreflang="x-default" href="https://3d-fab.ch/it/terms" />
+    <changefreq>yearly</changefreq>
+    <priority>0.4</priority>
+  </url>
+  <url>
+    <loc>https://3d-fab.ch/de/terms</loc>
+    <xhtml:link rel="alternate" hreflang="it" href="https://3d-fab.ch/it/terms" />
+    <xhtml:link rel="alternate" hreflang="en" href="https://3d-fab.ch/en/terms" />
+    <xhtml:link rel="alternate" hreflang="de" href="https://3d-fab.ch/de/terms" />
+    <xhtml:link rel="alternate" hreflang="fr" href="https://3d-fab.ch/fr/terms" />
+    <xhtml:link rel="alternate" hreflang="x-default" href="https://3d-fab.ch/it/terms" />
+    <changefreq>yearly</changefreq>
+    <priority>0.4</priority>
+  </url>
+  <url>
+    <loc>https://3d-fab.ch/fr/terms</loc>
+    <xhtml:link rel="alternate" hreflang="it" href="https://3d-fab.ch/it/terms" />
+    <xhtml:link rel="alternate" hreflang="en" href="https://3d-fab.ch/en/terms" />
+    <xhtml:link rel="alternate" hreflang="de" href="https://3d-fab.ch/de/terms" />
+    <xhtml:link rel="alternate" hreflang="fr" href="https://3d-fab.ch/fr/terms" />
+    <xhtml:link rel="alternate" hreflang="x-default" href="https://3d-fab.ch/it/terms" />
+    <changefreq>yearly</changefreq>
+    <priority>0.4</priority>
+  </url>
+</urlset>

frontend/public/sitemap.xml

@@ -1,144 +1,9 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<urlset
-  xmlns="http://www.sitemaps.org/schemas/sitemap/0.9"
-  xmlns:xhtml="http://www.w3.org/1999/xhtml"
->
-  <url>
-    <loc>https://3d-fab.ch/it</loc>
-    <xhtml:link rel="alternate" hreflang="it" href="https://3d-fab.ch/it" />
-    <xhtml:link rel="alternate" hreflang="en" href="https://3d-fab.ch/en" />
-    <xhtml:link rel="alternate" hreflang="de" href="https://3d-fab.ch/de" />
-    <xhtml:link rel="alternate" hreflang="fr" href="https://3d-fab.ch/fr" />
-    <xhtml:link rel="alternate" hreflang="x-default" href="https://3d-fab.ch/it" />
-    <changefreq>weekly</changefreq>
-    <priority>1.0</priority>
-  </url>
-  <url>
-    <loc>https://3d-fab.ch/it/calculator/basic</loc>
-    <xhtml:link
-      rel="alternate"
-      hreflang="it"
-      href="https://3d-fab.ch/it/calculator/basic"
-    />
-    <xhtml:link
-      rel="alternate"
-      hreflang="en"
-      href="https://3d-fab.ch/en/calculator/basic"
-    />
-    <xhtml:link
-      rel="alternate"
-      hreflang="de"
-      href="https://3d-fab.ch/de/calculator/basic"
-    />
-    <xhtml:link
-      rel="alternate"
-      hreflang="fr"
-      href="https://3d-fab.ch/fr/calculator/basic"
-    />
-    <xhtml:link
-      rel="alternate"
-      hreflang="x-default"
-      href="https://3d-fab.ch/it/calculator/basic"
-    />
-    <changefreq>weekly</changefreq>
-    <priority>0.9</priority>
-  </url>
-  <url>
-    <loc>https://3d-fab.ch/it/calculator/advanced</loc>
-    <xhtml:link
-      rel="alternate"
-      hreflang="it"
-      href="https://3d-fab.ch/it/calculator/advanced"
-    />
-    <xhtml:link
-      rel="alternate"
-      hreflang="en"
-      href="https://3d-fab.ch/en/calculator/advanced"
-    />
-    <xhtml:link
-      rel="alternate"
-      hreflang="de"
-      href="https://3d-fab.ch/de/calculator/advanced"
-    />
-    <xhtml:link
-      rel="alternate"
-      hreflang="fr"
-      href="https://3d-fab.ch/fr/calculator/advanced"
-    />
-    <xhtml:link
-      rel="alternate"
-      hreflang="x-default"
-      href="https://3d-fab.ch/it/calculator/advanced"
-    />
-    <changefreq>weekly</changefreq>
-    <priority>0.8</priority>
-  </url>
-  <url>
-    <loc>https://3d-fab.ch/it/about</loc>
-    <xhtml:link rel="alternate" hreflang="it" href="https://3d-fab.ch/it/about" />
-    <xhtml:link rel="alternate" hreflang="en" href="https://3d-fab.ch/en/about" />
-    <xhtml:link rel="alternate" hreflang="de" href="https://3d-fab.ch/de/about" />
-    <xhtml:link rel="alternate" hreflang="fr" href="https://3d-fab.ch/fr/about" />
-    <xhtml:link
-      rel="alternate"
-      hreflang="x-default"
-      href="https://3d-fab.ch/it/about"
-    />
-    <changefreq>monthly</changefreq>
-    <priority>0.7</priority>
-  </url>
-  <url>
-    <loc>https://3d-fab.ch/it/contact</loc>
-    <xhtml:link
-      rel="alternate"
-      hreflang="it"
-      href="https://3d-fab.ch/it/contact"
-    />
-    <xhtml:link
-      rel="alternate"
-      hreflang="en"
-      href="https://3d-fab.ch/en/contact"
-    />
-    <xhtml:link
-      rel="alternate"
-      hreflang="de"
-      href="https://3d-fab.ch/de/contact"
-    />
-    <xhtml:link
-      rel="alternate"
-      hreflang="fr"
-      href="https://3d-fab.ch/fr/contact"
-    />
-    <xhtml:link
-      rel="alternate"
-      hreflang="x-default"
-      href="https://3d-fab.ch/it/contact"
-    />
-    <changefreq>monthly</changefreq>
-    <priority>0.7</priority>
-  </url>
-  <url>
-    <loc>https://3d-fab.ch/it/privacy</loc>
-    <xhtml:link rel="alternate" hreflang="it" href="https://3d-fab.ch/it/privacy" />
-    <xhtml:link rel="alternate" hreflang="en" href="https://3d-fab.ch/en/privacy" />
-    <xhtml:link rel="alternate" hreflang="de" href="https://3d-fab.ch/de/privacy" />
-    <xhtml:link rel="alternate" hreflang="fr" href="https://3d-fab.ch/fr/privacy" />
-    <xhtml:link
-      rel="alternate"
-      hreflang="x-default"
-      href="https://3d-fab.ch/it/privacy"
-    />
-    <changefreq>yearly</changefreq>
-    <priority>0.4</priority>
-  </url>
-  <url>
-    <loc>https://3d-fab.ch/it/terms</loc>
-    <xhtml:link rel="alternate" hreflang="it" href="https://3d-fab.ch/it/terms" />
-    <xhtml:link rel="alternate" hreflang="en" href="https://3d-fab.ch/en/terms" />
-    <xhtml:link rel="alternate" hreflang="de" href="https://3d-fab.ch/de/terms" />
-    <xhtml:link rel="alternate" hreflang="fr" href="https://3d-fab.ch/fr/terms" />
-    <xhtml:link rel="alternate" hreflang="x-default" href="https://3d-fab.ch/it/terms" />
-    <changefreq>yearly</changefreq>
-    <priority>0.4</priority>
-  </url>
-</urlset>
+<sitemapindex xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">
+  <sitemap>
+    <loc>https://3d-fab.ch/sitemap-static.xml</loc>
+  </sitemap>
+  <sitemap>
+    <loc>https://3d-fab.ch/api/sitemap-shop.xml</loc>
+  </sitemap>
+</sitemapindex>

frontend/src/app/app.config.server.ts

@@ -0,0 +1,9 @@
+import { mergeApplicationConfig, ApplicationConfig } from '@angular/core';
+import { provideServerRendering } from '@angular/platform-server';
+import { appConfig } from './app.config';
+
+const serverConfig: ApplicationConfig = {
+  providers: [provideServerRendering()],
+};
+
+export const config = mergeApplicationConfig(appConfig, serverConfig);

frontend/src/app/app.config.ts

@@ -1,22 +1,48 @@
 import {
   ApplicationConfig,
+  provideAppInitializer,
   provideZoneChangeDetection,
   importProvidersFrom,
+  inject,
+  REQUEST,
 } from '@angular/core';
 import {
   provideRouter,
   withComponentInputBinding,
   withInMemoryScrolling,
   withViewTransitions,
+  Router,
 } from '@angular/router';
 import { routes } from './app.routes';
 import { provideHttpClient, withInterceptors } from '@angular/common/http';
-import { TranslateModule, TranslateLoader } from '@ngx-translate/core';
 import {
-  provideTranslateHttpLoader,
-  TranslateHttpLoader,
-} from '@ngx-translate/http-loader';
+  TranslateLoader,
+  TranslateModule,
+  TranslateService,
+} from '@ngx-translate/core';
 import { adminAuthInterceptor } from './core/interceptors/admin-auth.interceptor';
+import {
+  provideClientHydration,
+  withEventReplay,
+} from '@angular/platform-browser';
+import { serverOriginInterceptor } from './core/interceptors/server-origin.interceptor';
+import { catchError, firstValueFrom, of } from 'rxjs';
+import { StaticTranslateLoader } from './core/i18n/static-translate.loader';
+
+type SupportedLang = 'it' | 'en' | 'de' | 'fr';
+const SUPPORTED_LANGS: readonly SupportedLang[] = ['it', 'en', 'de', 'fr'];
+
+function resolveLangFromUrl(url: string): SupportedLang {
+  const firstSegment = (url || '/')
+    .split('?')[0]
+    .split('#')[0]
+    .split('/')
+    .filter(Boolean)[0]
+    ?.toLowerCase();
+  return SUPPORTED_LANGS.includes(firstSegment as SupportedLang)
+    ? (firstSegment as SupportedLang)
+    : 'it';
+}
 
 export const appConfig: ApplicationConfig = {
   providers: [
@@ -29,19 +55,44 @@ export const appConfig: ApplicationConfig = {
         scrollPositionRestoration: 'top',
       }),
     ),
-    provideHttpClient(withInterceptors([adminAuthInterceptor])),
-    provideTranslateHttpLoader({
-      prefix: './assets/i18n/',
-      suffix: '.json',
-    }),
+    provideHttpClient(
+      withInterceptors([serverOriginInterceptor, adminAuthInterceptor]),
+    ),
     importProvidersFrom(
       TranslateModule.forRoot({
         defaultLanguage: 'it',
         loader: {
           provide: TranslateLoader,
-          useClass: TranslateHttpLoader,
+          useClass: StaticTranslateLoader,
         },
       }),
     ),
+    provideAppInitializer(() => {
+      const translate = inject(TranslateService);
+      const router = inject(Router);
+      const request = inject(REQUEST, { optional: true }) as {
+        url?: string;
+      } | null;
+
+      translate.addLangs([...SUPPORTED_LANGS]);
+      translate.setDefaultLang('it');
+      const requestedUrl =
+        (typeof request?.url === 'string' && request.url) || router.url || '/';
+      const lang = resolveLangFromUrl(requestedUrl);
+
+      return firstValueFrom(
+        translate.use(lang).pipe(
+          catchError((error) => {
+            console.error('[i18n] Failed to preload language for SSR', {
+              lang,
+              requestedUrl,
+              error,
+            });
+            return of({});
+          }),
+        ),
+      ).then(() => undefined);
+    }),
+    provideClientHydration(withEventReplay()),
   ],
 };

frontend/src/app/app.routes.ts

@@ -1,4 +1,13 @@
-import { Routes } from '@angular/router';
+import { CanMatchFn, Routes } from '@angular/router';
+
+const SUPPORTED_LANGS = new Set(['it', 'en', 'de', 'fr']);
+
+const langPrefixCanMatch: CanMatchFn = (_route, segments) => {
+  if (segments.length === 0) {
+    return false;
+  }
+  return SUPPORTED_LANGS.has(segments[0].path.toLowerCase());
+};
 
 const appChildRoutes: Routes = [
   {
@@ -116,6 +125,7 @@ const appChildRoutes: Routes = [
 export const routes: Routes = [
   {
     path: ':lang',
+    canMatch: [langPrefixCanMatch],
     loadComponent: () =>
       import('./core/layout/layout.component').then((m) => m.LayoutComponent),
     children: appChildRoutes,

frontend/src/app/core/i18n/static-translate.loader.ts

@@ -0,0 +1,22 @@
+import { Injectable } from '@angular/core';
+import { TranslateLoader, TranslationObject } from '@ngx-translate/core';
+import { Observable, of } from 'rxjs';
+import de from '../../../assets/i18n/de.json';
+import en from '../../../assets/i18n/en.json';
+import fr from '../../../assets/i18n/fr.json';
+import it from '../../../assets/i18n/it.json';
+
+const TRANSLATIONS: Record<string, TranslationObject> = {
+  it: it as TranslationObject,
+  en: en as TranslationObject,
+  de: de as TranslationObject,
+  fr: fr as TranslationObject,
+};
+
+@Injectable()
+export class StaticTranslateLoader implements TranslateLoader {
+  getTranslation(lang: string): Observable<TranslationObject> {
+    const normalized = String(lang || 'it').toLowerCase();
+    return of(TRANSLATIONS[normalized] ?? TRANSLATIONS['it']);
+  }
+}

frontend/src/app/core/interceptors/server-origin.interceptor.ts

@@ -0,0 +1,63 @@
+import { HttpInterceptorFn } from '@angular/common/http';
+import { inject, REQUEST } from '@angular/core';
+
+type RequestLike = {
+  protocol?: string;
+  get?: (name: string) => string | undefined;
+  headers?: Record<string, string | string[] | undefined>;
+};
+
+function isAbsoluteUrl(url: string): boolean {
+  return /^[a-z][a-z\d+\-.]*:/i.test(url) || url.startsWith('//');
+}
+
+function firstHeaderValue(value: string | string[] | undefined): string | null {
+  if (Array.isArray(value)) {
+    return value[0] ?? null;
+  }
+  return typeof value === 'string' ? value : null;
+}
+
+function resolveOrigin(request: RequestLike | null): string | null {
+  if (!request) {
+    return null;
+  }
+
+  const host =
+    request.get?.('host') ??
+    firstHeaderValue(request.headers?.['host']) ??
+    firstHeaderValue(request.headers?.['x-forwarded-host']);
+  if (!host) {
+    return null;
+  }
+
+  const forwardedProtoRaw = firstHeaderValue(
+    request.headers?.['x-forwarded-proto'],
+  );
+  const forwardedProto = forwardedProtoRaw
+    ?.split(',')
+    .map((part) => part.trim().toLowerCase())
+    .find(Boolean);
+  const protocol = forwardedProto || request.protocol || 'http';
+  return `${protocol}://${host}`;
+}
+
+function normalizeRelativePath(url: string): string {
+  const withoutDot = url.replace(/^\.\//, '');
+  return withoutDot.startsWith('/') ? withoutDot : `/${withoutDot}`;
+}
+
+export const serverOriginInterceptor: HttpInterceptorFn = (req, next) => {
+  if (isAbsoluteUrl(req.url)) {
+    return next(req);
+  }
+
+  const request = inject(REQUEST, { optional: true }) as RequestLike | null;
+  const origin = resolveOrigin(request);
+  if (!origin) {
+    return next(req);
+  }
+
+  const absoluteUrl = `${origin}${normalizeRelativePath(req.url)}`;
+  return next(req.clone({ url: absoluteUrl }));
+};

frontend/src/app/core/layout/navbar.component.html

@@ -33,6 +33,12 @@
       <a routerLink="/about" routerLinkActive="active" (click)="closeMenu()">{{
         "NAV.ABOUT" | translate
       }}</a>
+      <a
+        routerLink="/materials"
+        routerLinkActive="active"
+        (click)="closeMenu()"
+        >{{ "NAV.MATERIALS" | translate }}</a
+      >
       <a
         routerLink="/contact"
         routerLinkActive="active"

frontend/src/app/features/admin/pages/admin-cad-invoices.component.ts

@@ -1,5 +1,5 @@
-import { CommonModule } from '@angular/common';
-import { Component, OnInit, inject } from '@angular/core';
+import { CommonModule, isPlatformBrowser } from '@angular/common';
+import { Component, OnInit, PLATFORM_ID, inject } from '@angular/core';
 import { FormsModule } from '@angular/forms';
 import {
   AdminCadInvoice,
@@ -16,6 +16,7 @@ import { CopyOnClickDirective } from '../../../shared/directives/copy-on-click.d
   styleUrl: './admin-cad-invoices.component.scss',
 })
 export class AdminCadInvoicesComponent implements OnInit {
+  private readonly isBrowser = isPlatformBrowser(inject(PLATFORM_ID));
   private readonly adminOperationsService = inject(AdminOperationsService);
   private readonly adminOrdersService = inject(AdminOrdersService);
 
@@ -112,11 +113,17 @@ export class AdminCadInvoicesComponent implements OnInit {
   }
 
   openCheckout(path: string): void {
+    if (!this.isBrowser) {
+      return;
+    }
     const url = this.toCheckoutUrl(path);
     window.open(url, '_blank');
   }
 
   copyCheckout(path: string): void {
+    if (!this.isBrowser) {
+      return;
+    }
     const url = this.toCheckoutUrl(path);
     navigator.clipboard?.writeText(url);
     this.successMessage = 'Link checkout CAD copiato negli appunti.';
@@ -126,6 +133,9 @@ export class AdminCadInvoicesComponent implements OnInit {
     if (!orderId) return;
     this.adminOrdersService.downloadOrderInvoice(orderId).subscribe({
       next: (blob) => {
+        if (!this.isBrowser) {
+          return;
+        }
         const url = window.URL.createObjectURL(blob);
         const a = document.createElement('a');
         a.href = url;
@@ -142,10 +152,16 @@ export class AdminCadInvoicesComponent implements OnInit {
   private toCheckoutUrl(path: string): string {
     const safePath = path.startsWith('/') ? path : `/${path}`;
     const lang = this.resolveLang();
+    if (!this.isBrowser) {
+      return `/${lang}${safePath}`;
+    }
     return `${window.location.origin}/${lang}${safePath}`;
   }
 
   private resolveLang(): string {
+    if (!this.isBrowser) {
+      return 'it';
+    }
     const firstSegment = window.location.pathname
       .split('/')
       .filter(Boolean)

frontend/src/app/features/admin/pages/admin-contact-requests.component.ts

@@ -1,5 +1,5 @@
-import { CommonModule } from '@angular/common';
-import { Component, inject, OnInit } from '@angular/core';
+import { CommonModule, isPlatformBrowser } from '@angular/common';
+import { Component, PLATFORM_ID, inject, OnInit } from '@angular/core';
 import { FormsModule } from '@angular/forms';
 import {
   AdminContactRequest,
@@ -17,6 +17,7 @@ import { CopyOnClickDirective } from '../../../shared/directives/copy-on-click.d
   styleUrl: './admin-contact-requests.component.scss',
 })
 export class AdminContactRequestsComponent implements OnInit {
+  private readonly isBrowser = isPlatformBrowser(inject(PLATFORM_ID));
   private readonly adminOperationsService = inject(AdminOperationsService);
 
   readonly statusOptions = ['NEW', 'PENDING', 'IN_PROGRESS', 'DONE', 'CLOSED'];
@@ -171,6 +172,9 @@ export class AdminContactRequestsComponent implements OnInit {
   }
 
   private downloadBlob(blob: Blob, filename: string): void {
+    if (!this.isBrowser) {
+      return;
+    }
     const url = window.URL.createObjectURL(blob);
     const a = document.createElement('a');
     a.href = url;

frontend/src/app/features/admin/pages/admin-dashboard.component.html

@@ -104,7 +104,6 @@
               <td>
                 <span
                   class="order-type-badge"
-                  [class.order-type-badge--shop]="orderKind(order) === 'SHOP'"
                   [class.order-type-badge--mixed]="orderKind(order) === 'MIXED'"
                 >
                   {{ orderKindLabel(order) }}
@@ -133,7 +132,6 @@
           <h2>Dettaglio ordine {{ selectedOrder.orderNumber }}</h2>
           <span
             class="order-type-badge"
-            [class.order-type-badge--shop]="orderKind(selectedOrder) === 'SHOP'"
             [class.order-type-badge--mixed]="
               orderKind(selectedOrder) === 'MIXED'
             "
@@ -259,10 +257,7 @@
               <p class="file-name">
                 <strong>{{ itemDisplayName(item) }}</strong>
               </p>
-              <span
-                class="item-kind-badge"
-                [class.item-kind-badge--shop]="isShopItem(item)"
-              >
+              <span class="item-kind-badge">
                 {{ isShopItem(item) ? "Shop" : "Calcolatore" }}
               </span>
             </div>

frontend/src/app/features/admin/pages/admin-dashboard.component.scss

@@ -224,12 +224,6 @@ tbody tr.no-results:hover {
   white-space: nowrap;
 }
 
-.order-type-badge--shop,
-.item-kind-badge--shop {
-  background: color-mix(in srgb, var(--color-brand) 12%, white);
-  color: var(--color-brand);
-}
-
 .order-type-badge--mixed {
   background: color-mix(in srgb, #f59e0b 16%, white);
   color: #9a5b00;

frontend/src/app/features/admin/pages/admin-dashboard.component.ts

@@ -1,5 +1,5 @@
-import { CommonModule } from '@angular/common';
-import { Component, inject, OnInit } from '@angular/core';
+import { CommonModule, isPlatformBrowser } from '@angular/common';
+import { Component, PLATFORM_ID, inject, OnInit } from '@angular/core';
 import { FormsModule } from '@angular/forms';
 import {
   AdminOrder,
@@ -16,6 +16,7 @@ import { CopyOnClickDirective } from '../../../shared/directives/copy-on-click.d
   styleUrl: './admin-dashboard.component.scss',
 })
 export class AdminDashboardComponent implements OnInit {
+  private readonly isBrowser = isPlatformBrowser(inject(PLATFORM_ID));
   private readonly adminOrdersService = inject(AdminOrdersService);
 
   orders: AdminOrder[] = [];
@@ -498,6 +499,9 @@ export class AdminDashboardComponent implements OnInit {
   }
 
   private downloadBlob(blob: Blob, filename: string): void {
+    if (!this.isBrowser) {
+      return;
+    }
     const url = window.URL.createObjectURL(blob);
     const a = document.createElement('a');
     a.href = url;

frontend/src/app/features/admin/pages/admin-home-media.component.html

@@ -130,7 +130,7 @@
                     <button
                       *ngFor="let language of mediaLanguages"
                       type="button"
-                      class="language-toggle-btn ui-language-toolbar__button"
+                      class="ui-language-toolbar__button image-language-button"
                       [class.active]="
                         getFormState(section.usageKey).activeLanguage ===
                         language
@@ -139,11 +139,28 @@
                         isLanguageComplete(section.usageKey, language)
                       "
                       [class.incomplete]="
-                        !isLanguageComplete(section.usageKey, language)
+                        isLanguageIncomplete(section.usageKey, language)
+                      "
+                      [class.empty]="
+                        !isLanguageStarted(section.usageKey, language)
                       "
                       (click)="setActiveLanguage(section.usageKey, language)"
                     >
-                      {{ mediaLanguageLabels[language] }}
+                      <span class="image-language-button__label">
+                        {{ mediaLanguageLabels[language] }}
+                      </span>
+                      <span
+                        class="image-language-button__state"
+                        *ngIf="isLanguageComplete(section.usageKey, language)"
+                      >
+                        OK
+                      </span>
+                      <span
+                        class="image-language-button__state"
+                        *ngIf="isLanguageIncomplete(section.usageKey, language)"
+                      >
+                        ...
+                      </span>
                     </button>
                   </div>
                 </div>

frontend/src/app/features/admin/pages/admin-home-media.component.scss

@@ -27,6 +27,62 @@
   gap: var(--space-1);
 }
 
+.image-language-button {
+  display: inline-flex;
+  align-items: center;
+  gap: 0.35rem;
+  min-width: 3.15rem;
+  background: #ffffff;
+  color: var(--color-text-muted);
+}
+
+.image-language-button.empty {
+  opacity: 0.76;
+}
+
+.image-language-button.complete {
+  border-color: #b8ddc2;
+}
+
+.image-language-button.incomplete {
+  border-color: #e8c8c2;
+}
+
+.image-language-button.active {
+  background: #fff5b8;
+  border-color: var(--color-brand);
+  color: var(--color-text);
+  opacity: 1;
+}
+
+.image-language-button__label {
+  line-height: 1;
+}
+
+.image-language-button__state {
+  display: inline-flex;
+  align-items: center;
+  justify-content: center;
+  min-width: 1rem;
+  height: 1rem;
+  padding: 0 0.2rem;
+  border-radius: 999px;
+  background: rgba(0, 0, 0, 0.08);
+  font-size: 0.62rem;
+  font-weight: 800;
+  line-height: 1;
+}
+
+.image-language-button.complete .image-language-button__state {
+  background: #dcefdc;
+  color: #25603b;
+}
+
+.image-language-button.incomplete .image-language-button__state {
+  background: #f7ddd7;
+  color: #944329;
+}
+
 .form-field--wide {
   grid-column: 1 / -1;
 }

frontend/src/app/features/admin/pages/admin-home-media.component.ts

@@ -1,5 +1,11 @@
-import { CommonModule } from '@angular/common';
-import { Component, inject, OnDestroy, OnInit } from '@angular/core';
+import { CommonModule, isPlatformBrowser } from '@angular/common';
+import {
+  Component,
+  PLATFORM_ID,
+  inject,
+  OnDestroy,
+  OnInit,
+} from '@angular/core';
 import { FormsModule } from '@angular/forms';
 import { of, switchMap } from 'rxjs';
 import {
@@ -17,12 +23,16 @@ type HomeSectionKey =
   | 'capability-prototyping'
   | 'capability-custom-parts'
   | 'capability-small-series'
-  | 'capability-cad';
+  | 'capability-cad'
+  | 'joe'
+  | 'matteo';
+
+type HomeMediaUsageType = 'HOME_SECTION' | 'ABOUT_MEMBER';
 
 interface HomeMediaSectionConfig {
-  usageType: 'HOME_SECTION';
+  usageType: HomeMediaUsageType;
   usageKey: HomeSectionKey;
-  groupId: 'galleries' | 'capabilities';
+  groupId: 'galleries' | 'capabilities' | 'about-members';
   title: string;
   preferredVariantName: 'card' | 'hero';
 }
@@ -81,6 +91,7 @@ const MEDIA_LANGUAGE_LABELS: Readonly<Record<AdminMediaLanguage, string>> = {
   styleUrl: './admin-home-media.component.scss',
 })
 export class AdminHomeMediaComponent implements OnInit, OnDestroy {
+  private readonly isBrowser = isPlatformBrowser(inject(PLATFORM_ID));
   private readonly adminMediaService = inject(AdminMediaService);
   readonly mediaLanguages = SUPPORTED_MEDIA_LANGUAGES;
   readonly mediaLanguageLabels = MEDIA_LANGUAGE_LABELS;
@@ -94,6 +105,10 @@ export class AdminHomeMediaComponent implements OnInit, OnDestroy {
       id: 'capabilities',
       title: 'Cosa puoi ottenere',
     },
+    {
+      id: 'about-members',
+      title: 'Chi siamo',
+    },
   ];
 
   readonly sectionConfigs: readonly HomeMediaSectionConfig[] = [
@@ -139,6 +154,20 @@ export class AdminHomeMediaComponent implements OnInit, OnDestroy {
       title: 'Home: consulenza e CAD',
       preferredVariantName: 'card',
     },
+    {
+      usageType: 'ABOUT_MEMBER',
+      usageKey: 'joe',
+      groupId: 'about-members',
+      title: 'Chi siamo: Joe',
+      preferredVariantName: 'card',
+    },
+    {
+      usageType: 'ABOUT_MEMBER',
+      usageKey: 'matteo',
+      groupId: 'about-members',
+      title: 'Chi siamo: Matteo',
+      preferredVariantName: 'card',
+    },
   ];
 
   sections: HomeMediaSectionView[] = [];
@@ -155,6 +184,8 @@ export class AdminHomeMediaComponent implements OnInit, OnDestroy {
       'capability-custom-parts': this.createEmptyFormState(),
       'capability-small-series': this.createEmptyFormState(),
       'capability-cad': this.createEmptyFormState(),
+      joe: this.createEmptyFormState(),
+      matteo: this.createEmptyFormState(),
     };
 
   get configuredSectionCount(): number {
@@ -219,7 +250,8 @@ export class AdminHomeMediaComponent implements OnInit, OnDestroy {
 
     this.revokePreviewUrl(formState.previewUrl);
     formState.file = file;
-    formState.previewUrl = file ? URL.createObjectURL(file) : null;
+    formState.previewUrl =
+      file && this.isBrowser ? URL.createObjectURL(file) : null;
 
     if (file && this.areAllTitlesBlank(formState.translations)) {
       const nextTitle = this.deriveDefaultTitle(file.name);
@@ -432,6 +464,25 @@ export class AdminHomeMediaComponent implements OnInit, OnDestroy {
     );
   }
 
+  isLanguageStarted(
+    sectionKey: HomeSectionKey,
+    language: AdminMediaLanguage,
+  ): boolean {
+    return this.isTranslationStarted(
+      this.getFormState(sectionKey).translations[language],
+    );
+  }
+
+  isLanguageIncomplete(
+    sectionKey: HomeSectionKey,
+    language: AdminMediaLanguage,
+  ): boolean {
+    return (
+      this.isLanguageStarted(sectionKey, language) &&
+      !this.isLanguageComplete(sectionKey, language)
+    );
+  }
+
   getItemTranslation(
     item: HomeMediaItem,
     language: AdminMediaLanguage,
@@ -540,6 +591,9 @@ export class AdminHomeMediaComponent implements OnInit, OnDestroy {
   }
 
   private revokePreviewUrl(previewUrl: string | null): void {
+    if (!this.isBrowser) {
+      return;
+    }
     if (!previewUrl?.startsWith('blob:')) {
       return;
     }
@@ -619,6 +673,10 @@ export class AdminHomeMediaComponent implements OnInit, OnDestroy {
     return !!translation.title.trim() && !!translation.altText.trim();
   }
 
+  private isTranslationStarted(translation: AdminMediaTranslation): boolean {
+    return !!translation.title.trim() || !!translation.altText.trim();
+  }
+
   private validateTranslations(
     translations: Record<AdminMediaLanguage, AdminMediaTranslation>,
   ): string | null {

frontend/src/app/features/admin/pages/admin-sessions.component.ts

@@ -1,5 +1,5 @@
-import { CommonModule } from '@angular/common';
-import { Component, inject, OnInit } from '@angular/core';
+import { CommonModule, isPlatformBrowser } from '@angular/common';
+import { Component, PLATFORM_ID, inject, OnInit } from '@angular/core';
 import {
   AdminOperationsService,
   AdminQuoteSession,
@@ -15,6 +15,7 @@ import { CopyOnClickDirective } from '../../../shared/directives/copy-on-click.d
   styleUrl: './admin-sessions.component.scss',
 })
 export class AdminSessionsComponent implements OnInit {
+  private readonly isBrowser = isPlatformBrowser(inject(PLATFORM_ID));
   private readonly adminOperationsService = inject(AdminOperationsService);
 
   sessions: AdminQuoteSession[] = [];
@@ -51,9 +52,11 @@ export class AdminSessionsComponent implements OnInit {
       return;
     }
 
-    const confirmed = window.confirm(
-      `Vuoi eliminare la sessione ${session.id}? Questa azione non si puo annullare.`,
-    );
+    const confirmed =
+      this.isBrowser &&
+      window.confirm(
+        `Vuoi eliminare la sessione ${session.id}? Questa azione non si puo annullare.`,
+      );
     if (!confirmed) {
       return;
     }

frontend/src/app/features/admin/pages/admin-shop.component.html

@@ -8,25 +8,29 @@
       </p>
     </div>
 
-    <div class="header-actions">
-      <article class="ui-stat-chip">
-        <strong>{{ products.length }}</strong>
-        <span>prodotti</span>
-      </article>
-      <article class="ui-stat-chip">
-        <strong>{{ categories.length }}</strong>
-        <span>categorie</span>
-      </article>
-      <button
-        type="button"
-        class="ui-button ui-button--ghost"
-        (click)="loadWorkspace()"
-      >
-        Aggiorna
-      </button>
-      <button type="button" class="ui-button" (click)="startCreateProduct()">
-        Nuovo prodotto
-      </button>
+    <div class="header-side ui-stack ui-stack--dense">
+      <div class="header-stats ui-row ui-row--wrap ui-row--end">
+        <article class="ui-stat-chip">
+          <strong>{{ products.length }}</strong>
+          <span>prodotti</span>
+        </article>
+        <article class="ui-stat-chip">
+          <strong>{{ categories.length }}</strong>
+          <span>categorie</span>
+        </article>
+      </div>
+      <div class="header-actions ui-row ui-row--wrap ui-row--end">
+        <button
+          type="button"
+          class="ui-button ui-button--ghost"
+          (click)="loadWorkspace()"
+        >
+          Aggiorna
+        </button>
+        <button type="button" class="ui-button" (click)="startCreateProduct()">
+          Nuovo prodotto
+        </button>
+      </div>
     </div>
   </header>
 
@@ -473,7 +477,7 @@
       </div>
 
       <form class="detail-stack" (submit)="$event.preventDefault()">
-        <section class="form-section">
+        <section class="form-section ui-subpanel">
           <div class="panel-heading">
             <div>
               <h3>Dati base</h3>
@@ -565,7 +569,7 @@
           </div>
         </section>
 
-        <section class="form-section">
+        <section class="form-section ui-subpanel">
           <div class="panel-heading">
             <div>
               <h3>Contenuti localizzati</h3>
@@ -584,13 +588,28 @@
               <button
                 *ngFor="let language of shopLanguages"
                 type="button"
-                class="ui-language-toolbar__button"
+                class="ui-language-toolbar__button image-language-button"
                 [class.active]="activeContentLanguage === language"
                 [class.complete]="isContentLanguageComplete(language)"
-                [class.incomplete]="!isContentLanguageComplete(language)"
+                [class.incomplete]="isContentLanguageIncomplete(language)"
+                [class.empty]="!isContentLanguageStarted(language)"
                 (click)="setActiveContentLanguage(language)"
               >
-                {{ languageLabels[language] }}
+                <span class="image-language-button__label">
+                  {{ languageLabels[language] }}
+                </span>
+                <span
+                  class="image-language-button__state"
+                  *ngIf="isContentLanguageComplete(language)"
+                >
+                  OK
+                </span>
+                <span
+                  class="image-language-button__state"
+                  *ngIf="isContentLanguageIncomplete(language)"
+                >
+                  ...
+                </span>
               </button>
             </div>
           </div>
@@ -620,120 +639,232 @@
               />
             </label>
 
-            <label class="ui-form-field form-field--wide">
+            <div class="ui-form-field form-field--wide">
               <span class="ui-form-caption">
                 Descrizione {{ languageLabels[activeContentLanguage] }}
               </span>
-              <textarea
-                class="ui-form-control textarea-control textarea-control--large"
-                [(ngModel)]="productForm.descriptions[activeContentLanguage]"
-                [name]="'product-description-' + activeContentLanguage"
-                rows="6"
-              ></textarea>
-            </label>
+              <div class="rich-text-field">
+                <div class="rich-text-toolbar" role="toolbar">
+                  <button
+                    type="button"
+                    class="rich-text-toolbar__button"
+                    (mousedown)="preventRichTextToolbarMouseDown($event)"
+                    (click)="formatDescription('bold')"
+                    title="Grassetto"
+                    aria-label="Grassetto"
+                  >
+                    <strong>B</strong>
+                  </button>
+                  <button
+                    type="button"
+                    class="rich-text-toolbar__button"
+                    (mousedown)="preventRichTextToolbarMouseDown($event)"
+                    (click)="formatDescription('italic')"
+                    title="Corsivo"
+                    aria-label="Corsivo"
+                  >
+                    <em>I</em>
+                  </button>
+                  <button
+                    type="button"
+                    class="rich-text-toolbar__button"
+                    (mousedown)="preventRichTextToolbarMouseDown($event)"
+                    (click)="formatDescription('underline')"
+                    title="Sottolineato"
+                    aria-label="Sottolineato"
+                  >
+                    <u>U</u>
+                  </button>
+                  <button
+                    type="button"
+                    class="rich-text-toolbar__button"
+                    (mousedown)="preventRichTextToolbarMouseDown($event)"
+                    (click)="formatDescriptionList('unordered')"
+                    title="Lista puntata"
+                    aria-label="Lista puntata"
+                  >
+                    • Lista
+                  </button>
+                  <button
+                    type="button"
+                    class="rich-text-toolbar__button"
+                    (mousedown)="preventRichTextToolbarMouseDown($event)"
+                    (click)="formatDescriptionList('ordered')"
+                    title="Lista numerata"
+                    aria-label="Lista numerata"
+                  >
+                    1. Lista
+                  </button>
+                  <button
+                    type="button"
+                    class="rich-text-toolbar__button"
+                    (mousedown)="preventRichTextToolbarMouseDown($event)"
+                    (click)="clearDescriptionFormatting()"
+                    title="Rimuovi formattazione"
+                    aria-label="Rimuovi formattazione"
+                  >
+                    Tx
+                  </button>
+                </div>
+                <div
+                  #descriptionEditorRef
+                  class="ui-form-control textarea-control textarea-control--large rich-text-editor"
+                  contenteditable="true"
+                  role="textbox"
+                  aria-multiline="true"
+                  [attr.aria-label]="
+                    'Descrizione ' + languageLabels[activeContentLanguage]
+                  "
+                  (input)="onDescriptionEditorInput($event)"
+                  (blur)="onDescriptionEditorBlur($event)"
+                ></div>
+              </div>
+              <span class="ui-form-caption">
+                Supporta grassetto, corsivo, liste puntate e numerate.
+              </span>
+            </div>
           </div>
         </section>
 
-        <section class="form-section">
+        <section class="form-section ui-subpanel">
           <div class="panel-heading">
             <div>
-              <h3>SEO e social</h3>
-              <p>Metadati globali per risultato organico e preview.</p>
+              <h3>SEO localizzata</h3>
+              <p>
+                I campi seguono la lingua attiva. Open Graph usa gli stessi
+                valori della SEO.
+              </p>
+            </div>
+          </div>
+
+          <div class="ui-language-toolbar">
+            <div class="ui-language-toolbar__copy">
+              <span>Lingua SEO</span>
+              <p>Stessa lingua attiva dell'editor contenuti</p>
+            </div>
+            <div class="ui-language-toolbar__toggle">
+              <button
+                *ngFor="let language of shopLanguages"
+                type="button"
+                class="ui-language-toolbar__button image-language-button"
+                [class.active]="activeContentLanguage === language"
+                [class.complete]="isSeoLanguageComplete(language)"
+                [class.incomplete]="isSeoLanguageIncomplete(language)"
+                [class.empty]="!isSeoLanguageStarted(language)"
+                (click)="setActiveContentLanguage(language)"
+              >
+                <span class="image-language-button__label">
+                  {{ languageLabels[language] }}
+                </span>
+                <span
+                  class="image-language-button__state"
+                  *ngIf="isSeoLanguageComplete(language)"
+                >
+                  OK
+                </span>
+                <span
+                  class="image-language-button__state"
+                  *ngIf="isSeoLanguageIncomplete(language)"
+                >
+                  ...
+                </span>
+              </button>
             </div>
           </div>
 
           <div class="ui-form-grid ui-form-grid--two">
             <label class="ui-form-field">
-              <span class="ui-form-caption">SEO title</span>
+              <span class="ui-form-caption">
+                SEO title {{ languageLabels[activeContentLanguage] }}
+              </span>
               <input
                 class="ui-form-control"
                 type="text"
-                [(ngModel)]="productForm.seoTitle"
-                name="productSeoTitle"
+                [(ngModel)]="productForm.seoTitles[activeContentLanguage]"
+                [name]="'product-seo-title-' + activeContentLanguage"
               />
             </label>
 
-            <label class="ui-form-field">
-              <span class="ui-form-caption">SEO description</span>
-              <input
+            <label class="ui-form-field form-field--wide">
+              <span class="ui-form-caption">
+                SEO description {{ languageLabels[activeContentLanguage] }}
+              </span>
+              <textarea
                 class="ui-form-control"
-                type="text"
-                [(ngModel)]="productForm.seoDescription"
-                name="productSeoDescription"
-              />
-            </label>
-
-            <label class="ui-form-field">
-              <span class="ui-form-caption">OG title</span>
-              <input
-                class="ui-form-control"
-                type="text"
-                [(ngModel)]="productForm.ogTitle"
-                name="productOgTitle"
-              />
-            </label>
-
-            <label class="ui-form-field">
-              <span class="ui-form-caption">OG description</span>
-              <input
-                class="ui-form-control"
-                type="text"
-                [(ngModel)]="productForm.ogDescription"
-                name="productOgDescription"
-              />
+                [(ngModel)]="productForm.seoDescriptions[activeContentLanguage]"
+                [name]="'product-seo-description-' + activeContentLanguage"
+                rows="3"
+              ></textarea>
+              <span
+                class="seo-counter"
+                [class.seo-counter--danger]="
+                  seoDescriptionLength(activeContentLanguage) > 160
+                "
+              >
+                {{ seoDescriptionLength(activeContentLanguage) }}/160
+              </span>
             </label>
           </div>
         </section>
 
-        <section class="form-section">
+        <section class="form-section ui-subpanel">
           <div class="panel-heading">
             <div>
-              <h3>Varianti</h3>
-              <p>Colori, materiale interno, SKU e prezzi.</p>
+              <h3>Materiali e prezzi</h3>
+              <p>
+                Scegli i materiali disponibili a stock. I colori vengono presi
+                automaticamente dai filamenti attivi a magazzino.
+              </p>
             </div>
             <button
               type="button"
               class="ui-button ui-button--ghost"
-              (click)="addVariant()"
+              (click)="addMaterial()"
+              [disabled]="
+                productForm.materials.length >= stockMaterialCodes().length
+              "
             >
-              Aggiungi variante
+              Aggiungi materiale
             </button>
           </div>
 
+          <div class="locked-panel" *ngIf="stockMaterialCodes().length === 0">
+            Nessun materiale attivo con stock disponibile.
+          </div>
+
           <div class="variant-stack">
             <article
               class="variant-card"
               *ngFor="
-                let variant of productForm.variants;
+                let material of productForm.materials;
                 let index = index;
-                trackBy: trackVariant
+                trackBy: trackMaterial
               "
             >
               <div class="variant-card__header">
                 <div>
                   <h4>
-                    {{
-                      variant.variantLabel ||
-                        variant.colorName ||
-                        "Nuova variante"
-                    }}
+                    {{ material.materialCode || "Nuovo materiale" }}
                   </h4>
-                  <p>Ordine {{ variant.sortOrder }}</p>
+                  <p>
+                    {{ materialColorCount(material.materialCode) }} colori da
+                    stock · ordine {{ material.sortOrder }}
+                  </p>
                 </div>
                 <div class="variant-card__actions">
                   <button
                     type="button"
                     class="ui-button ui-button--ghost"
-                    (click)="setDefaultVariant(index)"
-                    [disabled]="variant.isDefault"
+                    (click)="setDefaultMaterial(index)"
+                    [disabled]="material.isDefault"
                   >
-                    {{ variant.isDefault ? "Default" : "Rendi default" }}
+                    {{ material.isDefault ? "Default" : "Rendi default" }}
                   </button>
                   <button
                     type="button"
                     class="ui-button ui-button--ghost-danger"
-                    (click)="removeVariant(index)"
-                    [disabled]="productForm.variants.length <= 1"
+                    (click)="removeMaterial(index)"
+                    [disabled]="productForm.materials.length <= 1"
                   >
                     Rimuovi
                   </button>
@@ -742,62 +873,25 @@
 
               <div class="ui-form-grid ui-form-grid--two">
                 <label class="ui-form-field">
-                  <span class="ui-form-caption">Nome variante</span>
-                  <input
+                  <span class="ui-form-caption">Materiale</span>
+                  <select
                     class="ui-form-control"
-                    type="text"
-                    [(ngModel)]="variant.variantLabel"
-                    [name]="'variant-label-' + index"
-                  />
-                </label>
-
-                <label class="ui-form-field">
-                  <span class="ui-form-caption">SKU</span>
-                  <input
-                    class="ui-form-control"
-                    type="text"
-                    [(ngModel)]="variant.sku"
-                    [name]="'variant-sku-' + index"
-                    autocomplete="off"
-                    autocapitalize="off"
-                    spellcheck="false"
-                  />
-                </label>
-
-                <label class="ui-form-field">
-                  <span class="ui-form-caption">Colore</span>
-                  <input
-                    class="ui-form-control"
-                    type="text"
-                    [(ngModel)]="variant.colorName"
-                    [name]="'variant-color-name-' + index"
-                  />
-                </label>
-
-                <label class="ui-form-field">
-                  <span class="ui-form-caption">HEX colore</span>
-                  <input
-                    class="ui-form-control"
-                    type="text"
-                    [(ngModel)]="variant.colorHex"
-                    [name]="'variant-color-hex-' + index"
-                    placeholder="#1A1A1A"
-                    (blur)="onColorHexBlur(variant)"
-                    autocomplete="off"
-                    autocapitalize="off"
-                    spellcheck="false"
-                  />
-                </label>
-
-                <label class="ui-form-field">
-                  <span class="ui-form-caption">Materiale interno</span>
-                  <input
-                    class="ui-form-control"
-                    type="text"
-                    [(ngModel)]="variant.internalMaterialCode"
-                    [name]="'variant-material-' + index"
-                    placeholder="PLA, PETG, TPU"
-                  />
+                    [(ngModel)]="material.materialCode"
+                    [name]="'material-code-' + index"
+                    (ngModelChange)="onMaterialCodeChange(index, $event)"
+                  >
+                    <option [ngValue]="''" disabled>Seleziona materiale</option>
+                    <option
+                      *ngFor="
+                        let materialCode of availableMaterialChoices(
+                          material.materialCode
+                        )
+                      "
+                      [ngValue]="materialCode"
+                    >
+                      {{ materialCode }}
+                    </option>
+                  </select>
                 </label>
 
                 <label class="ui-form-field">
@@ -807,8 +901,8 @@
                     type="number"
                     min="0"
                     step="0.01"
-                    [(ngModel)]="variant.priceChf"
-                    [name]="'variant-price-' + index"
+                    [(ngModel)]="material.priceChf"
+                    [name]="'material-price-' + index"
                   />
                 </label>
 
@@ -817,18 +911,42 @@
                   <input
                     class="ui-form-control"
                     type="number"
-                    [(ngModel)]="variant.sortOrder"
-                    [name]="'variant-sort-order-' + index"
+                    [(ngModel)]="material.sortOrder"
+                    [name]="'material-sort-order-' + index"
                   />
                 </label>
 
+                <label class="ui-form-field" *ngIf="material.isDefault">
+                  <span class="ui-form-caption">Colore default</span>
+                  <select
+                    class="ui-form-control"
+                    [(ngModel)]="material.defaultColorKey"
+                    [name]="'material-default-color-' + index"
+                    [disabled]="materialColorCount(material.materialCode) === 0"
+                  >
+                    <option [ngValue]="''" disabled>
+                      Seleziona colore default
+                    </option>
+                    <option
+                      *ngFor="
+                        let option of materialColorOptions(
+                          material.materialCode
+                        )
+                      "
+                      [ngValue]="option.key"
+                    >
+                      {{ option.label }}
+                    </option>
+                  </select>
+                </label>
+
                 <div class="toggle-row toggle-row--compact">
                   <label class="ui-checkbox">
                     <input
                       type="checkbox"
-                      [(ngModel)]="variant.isDefault"
-                      [name]="'variant-default-' + index"
-                      (ngModelChange)="setDefaultVariant(index)"
+                      [(ngModel)]="material.isDefault"
+                      [name]="'material-default-' + index"
+                      (ngModelChange)="setDefaultMaterial(index)"
                     />
                     <span class="ui-checkbox__mark" aria-hidden="true"></span>
                     <span>Default</span>
@@ -837,19 +955,34 @@
                   <label class="ui-checkbox">
                     <input
                       type="checkbox"
-                      [(ngModel)]="variant.isActive"
-                      [name]="'variant-active-' + index"
+                      [(ngModel)]="material.isActive"
+                      [name]="'material-active-' + index"
                     />
                     <span class="ui-checkbox__mark" aria-hidden="true"></span>
                     <span>Attiva</span>
                   </label>
                 </div>
               </div>
+
+              <div class="material-stock-summary" *ngIf="material.materialCode">
+                <strong>Colori disponibili:</strong>
+                <span *ngIf="materialColorCount(material.materialCode) > 0">
+                  {{ materialColorPreview(material.materialCode).join(", ") }}
+                  <ng-container
+                    *ngIf="materialColorCount(material.materialCode) > 6"
+                  >
+                    +{{ materialColorCount(material.materialCode) - 6 }} altri
+                  </ng-container>
+                </span>
+                <span *ngIf="materialColorCount(material.materialCode) === 0">
+                  Nessun colore disponibile attualmente a stock.
+                </span>
+              </div>
             </article>
           </div>
         </section>
 
-        <section class="form-section">
+        <section class="form-section ui-subpanel">
           <div class="panel-heading">
             <div>
               <h3>Immagini e modello 3D</h3>
@@ -914,15 +1047,30 @@
                     <button
                       *ngFor="let language of mediaLanguages"
                       type="button"
-                      class="ui-language-toolbar__button"
+                      class="ui-language-toolbar__button image-language-button"
                       [class.active]="
                         imageUploadState.activeLanguage === language
                       "
                       [class.complete]="isImageLanguageComplete(language)"
-                      [class.incomplete]="!isImageLanguageComplete(language)"
+                      [class.incomplete]="isImageLanguageIncomplete(language)"
+                      [class.empty]="!isImageLanguageStarted(language)"
                       (click)="setActiveImageLanguage(language)"
                     >
-                      {{ languageLabels[language] }}
+                      <span class="image-language-button__label">
+                        {{ languageLabels[language] }}
+                      </span>
+                      <span
+                        class="image-language-button__state"
+                        *ngIf="isImageLanguageComplete(language)"
+                      >
+                        OK
+                      </span>
+                      <span
+                        class="image-language-button__state"
+                        *ngIf="isImageLanguageIncomplete(language)"
+                      >
+                        ...
+                      </span>
                     </button>
                   </div>
                 </div>

frontend/src/app/features/admin/pages/admin-shop.component.scss

@@ -4,6 +4,62 @@
   gap: var(--space-5);
 }
 
+.admin-shop .image-language-button {
+  display: inline-flex;
+  align-items: center;
+  gap: 0.35rem;
+  min-width: 3.15rem;
+  background: #ffffff;
+  color: var(--color-text-muted);
+}
+
+.admin-shop .image-language-button.empty {
+  opacity: 0.76;
+}
+
+.admin-shop .image-language-button.complete {
+  border-color: #b8ddc2;
+}
+
+.admin-shop .image-language-button.incomplete {
+  border-color: #e8c8c2;
+}
+
+.admin-shop .image-language-button.active {
+  background: #fff5b8;
+  border-color: var(--color-brand);
+  color: var(--color-text);
+  opacity: 1;
+}
+
+.image-language-button__label {
+  line-height: 1;
+}
+
+.image-language-button__state {
+  display: inline-flex;
+  align-items: center;
+  justify-content: center;
+  min-width: 1rem;
+  height: 1rem;
+  padding: 0 0.2rem;
+  border-radius: 999px;
+  background: rgba(0, 0, 0, 0.08);
+  font-size: 0.62rem;
+  font-weight: 800;
+  line-height: 1;
+}
+
+.admin-shop .image-language-button.complete .image-language-button__state {
+  background: #dcefdc;
+  color: #25603b;
+}
+
+.admin-shop .image-language-button.incomplete .image-language-button__state {
+  background: #f7ddd7;
+  color: #944329;
+}
+
 .section-header {
   display: flex;
   justify-content: space-between;
@@ -24,13 +80,6 @@
   color: var(--color-text-muted);
 }
 
-.header-actions {
-  display: flex;
-  flex-wrap: wrap;
-  justify-content: flex-end;
-  gap: var(--space-2);
-}
-
 .workspace {
   align-items: start;
 }
@@ -61,7 +110,6 @@
 .category-manager,
 .category-editor,
 .detail-stack,
-.form-section,
 .variant-stack,
 .image-stack,
 .media-grid,
@@ -71,6 +119,12 @@
   gap: var(--space-3);
 }
 
+.form-section {
+  display: flex;
+  flex-direction: column;
+  gap: var(--space-2);
+}
+
 .panel-heading {
   display: flex;
   justify-content: space-between;
@@ -191,6 +245,62 @@
   min-height: 136px;
 }
 
+.rich-text-field {
+  display: grid;
+  gap: var(--space-2);
+}
+
+.rich-text-toolbar {
+  display: flex;
+  flex-wrap: wrap;
+  gap: 0.4rem;
+}
+
+.admin-shop .rich-text-toolbar__button {
+  border: 1px solid var(--color-border) !important;
+  border-radius: var(--radius-sm) !important;
+  background: #fff !important;
+  color: var(--color-text) !important;
+  min-height: 2rem;
+  padding: 0.28rem 0.56rem !important;
+  font-size: 0.82rem;
+}
+
+.admin-shop .rich-text-toolbar__button:hover:not(:disabled) {
+  border-color: #cbb88a !important;
+  background: #fffdf4 !important;
+}
+
+.rich-text-editor {
+  overflow-y: auto;
+  padding: 0.62rem 0.72rem;
+  line-height: 1.62;
+}
+
+.rich-text-editor:focus-visible {
+  outline: none;
+}
+
+.rich-text-editor:empty::before {
+  content: "Scrivi la descrizione del prodotto...";
+  color: var(--color-text-muted);
+}
+
+.rich-text-editor p,
+.rich-text-editor div {
+  margin: 0 0 0.62rem;
+}
+
+.rich-text-editor ul,
+.rich-text-editor ol {
+  margin: 0 0 0.62rem 1.25rem;
+  padding: 0;
+}
+
+.rich-text-editor li + li {
+  margin-top: 0.22rem;
+}
+
 .toggle-row {
   display: flex;
   flex-wrap: wrap;
@@ -211,6 +321,17 @@
   gap: var(--space-2);
 }
 
+.seo-counter {
+  justify-self: end;
+  font-size: 0.72rem;
+  font-weight: 700;
+  color: var(--color-text-muted);
+}
+
+.seo-counter--danger {
+  color: var(--color-danger-500);
+}
+
 .product-cell {
   display: grid;
   gap: 4px;
@@ -224,10 +345,6 @@ tbody tr.selected {
   background: #fff4c0;
 }
 
-.detail-panel {
-  gap: var(--space-4);
-}
-
 .detail-panel .ui-meta-item {
   padding: var(--space-2);
 }
@@ -277,15 +394,16 @@ tbody tr.selected {
 }
 
 .detail-stack {
-  gap: var(--space-4);
+  gap: var(--space-3);
 }
 
 .variant-card,
 .image-item {
   border: 1px solid var(--color-border);
   border-radius: var(--radius-md);
-  background: linear-gradient(180deg, #fcfcfb 0%, #ffffff 100%);
+  background: var(--color-bg-card);
   padding: var(--space-3);
+  box-shadow: var(--shadow-sm);
 }
 
 .variant-card {
@@ -316,6 +434,19 @@ tbody tr.selected {
   justify-content: flex-end;
 }
 
+.material-stock-summary {
+  display: flex;
+  flex-wrap: wrap;
+  gap: var(--space-2);
+  align-items: baseline;
+  color: var(--color-text-muted);
+  font-size: 0.95rem;
+}
+
+.material-stock-summary strong {
+  color: var(--color-text);
+}
+
 .locked-panel,
 .loading-state,
 .image-fallback {

frontend/src/app/features/admin/services/admin-shop.service.ts

@@ -131,7 +131,15 @@ export interface AdminShopProduct {
   descriptionDe: string | null;
   descriptionFr: string | null;
   seoTitle: string | null;
+  seoTitleIt: string | null;
+  seoTitleEn: string | null;
+  seoTitleDe: string | null;
+  seoTitleFr: string | null;
   seoDescription: string | null;
+  seoDescriptionIt: string | null;
+  seoDescriptionEn: string | null;
+  seoDescriptionDe: string | null;
+  seoDescriptionFr: string | null;
   ogTitle: string | null;
   ogDescription: string | null;
   indexable: boolean;
@@ -189,7 +197,15 @@ export interface AdminUpsertShopProductPayload {
   descriptionDe?: string;
   descriptionFr?: string;
   seoTitle?: string;
+  seoTitleIt?: string;
+  seoTitleEn?: string;
+  seoTitleDe?: string;
+  seoTitleFr?: string;
   seoDescription?: string;
+  seoDescriptionIt?: string;
+  seoDescriptionEn?: string;
+  seoDescriptionDe?: string;
+  seoDescriptionFr?: string;
   ogTitle?: string;
   ogDescription?: string;
   indexable: boolean;

frontend/src/app/features/calculator/calculator-page.component.ts

@@ -4,9 +4,12 @@ import {
   signal,
   ViewChild,
   ElementRef,
+  Inject,
   OnInit,
+  Optional,
+  PLATFORM_ID,
 } from '@angular/core';
-import { CommonModule } from '@angular/common';
+import { CommonModule, isPlatformBrowser } from '@angular/common';
 import { TranslateModule } from '@ngx-translate/core';
 import { forkJoin, of } from 'rxjs';
 import { catchError, map } from 'rxjs/operators';
@@ -53,6 +56,7 @@ type TrackedPrintSettings = {
   styleUrl: './calculator-page.component.scss',
 })
 export class CalculatorPageComponent implements OnInit {
+  private readonly isBrowser: boolean;
   mode = signal<'easy' | 'advanced'>('easy');
   step = signal<'upload' | 'quote' | 'details' | 'success'>('upload');
 
@@ -85,7 +89,10 @@ export class CalculatorPageComponent implements OnInit {
     private router: Router,
     private route: ActivatedRoute,
     private languageService: LanguageService,
-  ) {}
+    @Optional() @Inject(PLATFORM_ID) platformId?: Object,
+  ) {
+    this.isBrowser = isPlatformBrowser(platformId ?? 'browser');
+  }
 
   ngOnInit() {
     this.route.data.subscribe((data) => {
@@ -260,7 +267,7 @@ export class CalculatorPageComponent implements OnInit {
 
     // Auto-scroll on mobile to make analysis visible
     setTimeout(() => {
-      if (this.resultCol && window.innerWidth < 768) {
+      if (this.isBrowser && this.resultCol && window.innerWidth < 768) {
         this.resultCol.nativeElement.scrollIntoView({
           behavior: 'smooth',
           block: 'start',

frontend/src/app/features/contact/components/contact-form/contact-form.component.ts

@@ -1,5 +1,12 @@
-import { Component, signal, effect, inject, OnDestroy } from '@angular/core';
-import { CommonModule } from '@angular/common';
+import {
+  Component,
+  signal,
+  effect,
+  inject,
+  OnDestroy,
+  PLATFORM_ID,
+} from '@angular/core';
+import { CommonModule, isPlatformBrowser } from '@angular/common';
 import {
   ReactiveFormsModule,
   FormBuilder,
@@ -16,6 +23,7 @@ import {
 import { QuoteEstimatorService } from '../../../calculator/services/quote-estimator.service';
 import { QuoteRequestService } from '../../../../core/services/quote-request.service';
 import { LanguageService } from '../../../../core/services/language.service';
+import { SuccessStateComponent } from '../../../../shared/components/success-state/success-state.component';
 
 interface FilePreview {
   file: File;
@@ -23,8 +31,6 @@ interface FilePreview {
   type: 'image' | 'video' | 'pdf' | '3d' | 'document' | 'other';
 }
 
-import { SuccessStateComponent } from '../../../../shared/components/success-state/success-state.component';
-
 @Component({
   selector: 'app-contact-form',
   standalone: true,
@@ -41,6 +47,7 @@ import { SuccessStateComponent } from '../../../../shared/components/success-sta
   styleUrl: './contact-form.component.scss',
 })
 export class ContactFormComponent implements OnDestroy {
+  private readonly isBrowser = isPlatformBrowser(inject(PLATFORM_ID));
   form: FormGroup;
   sent = signal(false);
   files = signal<FilePreview[]>([]);
@@ -127,9 +134,10 @@ export class ContactFormComponent implements OnDestroy {
         return {
           file: f,
           type,
-          url: this.shouldCreatePreview(type)
-            ? URL.createObjectURL(f)
-            : undefined,
+          url:
+            this.isBrowser && this.shouldCreatePreview(type)
+              ? URL.createObjectURL(f)
+              : undefined,
         };
       });
       this.files.set(filePreviews);
@@ -185,9 +193,10 @@ export class ContactFormComponent implements OnDestroy {
       const preview: FilePreview = {
         file,
         type,
-        url: this.shouldCreatePreview(type)
-          ? URL.createObjectURL(file)
-          : undefined,
+        url:
+          this.isBrowser && this.shouldCreatePreview(type)
+            ? URL.createObjectURL(file)
+            : undefined,
       };
       this.files.update((files) => [...files, preview]);
     });
@@ -354,6 +363,9 @@ export class ContactFormComponent implements OnDestroy {
   }
 
   private revokePreviewUrl(file: FilePreview): void {
+    if (!this.isBrowser) {
+      return;
+    }
     if (file.url?.startsWith('blob:')) {
       URL.revokeObjectURL(file.url);
     }

frontend/src/app/features/materials/materials-page.component.html

@@ -0,0 +1,397 @@
+<main class="materials-page">
+  <section class="hero">
+    <div class="container hero-inner">
+      <p class="ui-eyebrow">Guida materiali</p>
+      <h1>Qualita e Materiali</h1>
+      <p class="hero-lead">
+        Confronta materiali in modo interattivo con radar chart, metriche tecniche,
+        vantaggi, limiti e fonti verificabili.
+      </p>
+      <p class="hero-note">
+        Seleziona fino a {{ maxCompareCount }} materiali: il grafico aggiorna i
+        punteggi in tempo reale.
+      </p>
+    </div>
+  </section>
+
+  <section class="selector-section">
+    <div class="container">
+      <h2>Selezione confronto</h2>
+      <div class="selector-grid" role="group" aria-label="Selezione materiali">
+        @for (material of materials; track trackMaterial($index, material)) {
+          <button
+            type="button"
+            class="selector-chip"
+            [class.is-selected]="isSelected(material.id)"
+            [disabled]="!canSelect(material.id)"
+            (click)="toggleMaterial(material.id)"
+          >
+            <span
+              class="selector-dot"
+              [style.background-color]="legendDotColor(material.id)"
+            ></span>
+            <span>{{ material.name }}</span>
+          </button>
+        }
+      </div>
+      <p class="selector-help">
+        Nota: per l asse Economicita, un valore alto significa costo al kg piu
+        conveniente.
+      </p>
+    </div>
+  </section>
+
+  <section class="chart-section">
+    <div class="container chart-layout">
+      <article class="chart-card">
+        <header class="chart-header">
+          <h2>Radar chart comparativo</h2>
+          <p>
+            Punteggi normalizzati 0-100 su tutto il set materiali (min-max scaling).
+          </p>
+        </header>
+
+        <svg
+          class="radar-chart"
+          [attr.viewBox]="'0 0 ' + chartSize + ' ' + chartSize"
+          role="img"
+          aria-label="Radar chart materiali"
+        >
+          <g class="chart-rings">
+            @for (ring of ringPolygons(); track $index) {
+              <polygon [attr.points]="ring"></polygon>
+            }
+          </g>
+
+          <g class="chart-axes">
+            @for (axis of axisGuides(); track axis.id) {
+              <line
+                [attr.x1]="axis.fromX"
+                [attr.y1]="axis.fromY"
+                [attr.x2]="axis.x"
+                [attr.y2]="axis.y"
+              ></line>
+              <text
+                [attr.x]="axis.labelX"
+                [attr.y]="axis.labelY"
+                [attr.text-anchor]="axis.labelAnchor"
+              >
+                {{ radarAxes[$index].label }}
+              </text>
+            }
+          </g>
+
+          <g class="chart-series">
+            @for (series of radarSeries(); track series.material.id) {
+              <polygon
+                class="series-shape"
+                [attr.points]="series.points"
+                [style.stroke]="series.color"
+                [style.fill]="series.fill"
+                [class.is-hovered]="hoveredMaterialId() === series.material.id"
+                (mouseenter)="setHoveredMaterial(series.material.id)"
+                (mouseleave)="setHoveredMaterial(null)"
+              ></polygon>
+
+              @for (point of series.values; track point.axis.id) {
+                <circle
+                  class="series-node"
+                  [attr.cx]="point.x"
+                  [attr.cy]="point.y"
+                  r="4"
+                  [style.fill]="series.color"
+                ></circle>
+              }
+            }
+          </g>
+        </svg>
+
+        <div class="chart-legend">
+          @for (series of radarSeries(); track series.material.id) {
+            <button
+              type="button"
+              class="legend-item"
+              (mouseenter)="setHoveredMaterial(series.material.id)"
+              (mouseleave)="setHoveredMaterial(null)"
+            >
+              <span
+                class="legend-dot"
+                [style.background-color]="series.color"
+              ></span>
+              <span>{{ series.material.name }}</span>
+            </button>
+          }
+        </div>
+      </article>
+
+      <article class="explain-card">
+        <h3>Spiegazione completa del radar</h3>
+        <p>
+          Ogni asse mostra una proprieta tecnica. Il valore 100 rappresenta la
+          miglior performance relativa nel dataset attuale; 0 la meno favorevole.
+        </p>
+        <ul>
+          @for (axis of radarAxes; track axis.id) {
+            <li>
+              <strong>{{ axis.label }}:</strong>
+              {{ axis.description }}
+            </li>
+          }
+        </ul>
+        <p>
+          La normalizzazione e calcolata su tutti i materiali mostrati in pagina.
+          Per leggibilita il radar usa un raggio minimo visivo: i valori minimi
+          restano i meno favorevoli, ma non collassano tutti nello stesso punto.
+        </p>
+      </article>
+    </div>
+  </section>
+
+  <section class="table-section">
+    <div class="container">
+      <h2>Tabella tecnica di confronto</h2>
+      <div class="table-wrap">
+        <table>
+          <thead>
+            <tr>
+              <th>Parametro</th>
+              @for (material of selectedMaterials(); track trackMaterial($index, material)) {
+                <th>{{ material.name }}</th>
+              }
+            </tr>
+          </thead>
+          <tbody>
+            @for (row of comparisonRows(); track row.label) {
+              <tr>
+                <th>{{ row.label }}</th>
+                @for (value of row.values; track $index) {
+                  <td>{{ value }}</td>
+                }
+              </tr>
+            }
+          </tbody>
+        </table>
+      </div>
+    </div>
+  </section>
+
+  <section class="quality-section">
+    <div class="container">
+      <h2>Layer, ugello e infill: esempi pratici</h2>
+      <p class="quality-intro">
+        Questa sezione non e un calcolatore interattivo: spiega visivamente cosa
+        cambia su oggetti reali e come leggere i risultati del vostro calcolatore.
+      </p>
+
+      <div class="visual-guide-grid">
+        @for (guide of qualityVisualCards(); track trackVisualGuide($index, guide)) {
+          <article class="visual-guide-card">
+            <p class="visual-guide-category">{{ guide.category }}</p>
+            <h3>{{ guide.title }}</h3>
+
+            <div class="visual-guide-media">
+              @if (guide.image; as image) {
+                <picture>
+                  @if (image.source.avifUrl) {
+                    <source [srcset]="image.source.avifUrl" type="image/avif" />
+                  }
+                  @if (image.source.webpUrl) {
+                    <source [srcset]="image.source.webpUrl" type="image/webp" />
+                  }
+                  <img
+                    [src]="image.source.fallbackUrl"
+                    [attr.alt]="image.altText || guide.title"
+                    width="640"
+                    height="420"
+                  />
+                </picture>
+              } @else {
+                <div class="media-fallback">
+                  <span>
+                    Nessuna immagine assegnata.
+                    Carica asset backend con usageType
+                    <code>MATERIALS_PAGE</code> e usageKey
+                    <code>{{ guide.usageKey }}</code>.
+                  </span>
+                </div>
+              }
+            </div>
+
+            <p><strong>Oggetto esempio:</strong> {{ guide.objectExample }}</p>
+            <p><strong>Meglio per:</strong> {{ guide.bestFor }}</p>
+            <p><strong>Limite:</strong> {{ guide.tradeoff }}</p>
+            <p class="visual-guide-calc">
+              <strong>Lettura nel calcolatore:</strong> {{ guide.calculatorRead }}
+            </p>
+          </article>
+        }
+      </div>
+
+      <article class="calculator-logic-card">
+        <h3>Come leggere il nostro calcolatore</h3>
+        <p>
+          Il calcolatore non sostituisce i profili slicer: serve a spiegare il
+          compromesso tra estetica, robustezza e tempi in modo coerente.
+        </p>
+        <div class="logic-table-wrap">
+          <table>
+            <thead>
+              <tr>
+                <th>Metrica</th>
+                <th>Cosa significa</th>
+                <th>Valore alto</th>
+                <th>Valore basso</th>
+              </tr>
+            </thead>
+            <tbody>
+              @for (rule of calculatorRules; track rule.metric) {
+                <tr>
+                  <th>{{ rule.metric }}</th>
+                  <td>{{ rule.whatItMeans }}</td>
+                  <td>{{ rule.whenHigh }}</td>
+                  <td>{{ rule.whenLow }}</td>
+                </tr>
+              }
+            </tbody>
+          </table>
+        </div>
+      </article>
+
+      <div class="quality-layout">
+        <article class="quality-card">
+          <h3>Regole rapide per l utente</h3>
+          <ul>
+            <li>
+              Layer basso e ugello piccolo migliorano i dettagli, ma aumentano i
+              tempi.
+            </li>
+            <li>
+              Infill e perimetri alti migliorano resistenza, ma aumentano tempo e
+              materiale.
+            </li>
+            <li>
+              Per pezzi estetici usa profili fini; per pezzi funzionali scegli setup
+              bilanciati o robusti.
+            </li>
+          </ul>
+        </article>
+      </div>
+
+      <div class="guides-grid">
+        @for (guide of qualityGuides; track trackGuide($index, guide)) {
+          <article class="guide-card">
+            <h3>{{ guide.title }}</h3>
+            <p><strong>Range consigliato:</strong> {{ guide.recommendation }}</p>
+            <p>{{ guide.explanation }}</p>
+            <p class="guide-effect">{{ guide.practicalEffect }}</p>
+          </article>
+        }
+      </div>
+    </div>
+  </section>
+
+  <section class="materials-section">
+    <div class="container">
+      <h2>Schede materiali: spiegazioni, pro/contro, fonti</h2>
+      <div class="materials-grid">
+        @for (card of selectedCards(); track card.material.id) {
+          <article class="material-card">
+            <header>
+              <h3>{{ card.material.name }}</h3>
+              <p>{{ card.material.summary }}</p>
+            </header>
+
+            <div class="material-media">
+              @if (card.image; as image) {
+                <picture>
+                  @if (image.source.avifUrl) {
+                    <source [srcset]="image.source.avifUrl" type="image/avif" />
+                  }
+                  @if (image.source.webpUrl) {
+                    <source [srcset]="image.source.webpUrl" type="image/webp" />
+                  }
+                  <img
+                    [src]="image.source.fallbackUrl"
+                    [attr.alt]="image.altText || card.material.name"
+                    width="640"
+                    height="400"
+                  />
+                </picture>
+              } @else {
+                <div class="media-fallback">
+                  <span>
+                    Nessuna immagine assegnata.
+                    Carica asset backend con usageType
+                    <code>MATERIALS_PAGE</code> e usageKey
+                    <code>material-{{ card.material.id }}</code>.
+                  </span>
+                </div>
+              }
+            </div>
+
+            <div class="material-columns">
+              <div>
+                <h4>Vantaggi</h4>
+                <ul>
+                  @for (item of card.material.pros; track $index) {
+                    <li>{{ item }}</li>
+                  }
+                </ul>
+              </div>
+              <div>
+                <h4>Limiti</h4>
+                <ul>
+                  @for (item of card.material.cons; track $index) {
+                    <li>{{ item }}</li>
+                  }
+                </ul>
+              </div>
+              <div>
+                <h4>Ideale per</h4>
+                <ul>
+                  @for (item of card.material.idealFor; track $index) {
+                    <li>{{ item }}</li>
+                  }
+                </ul>
+              </div>
+            </div>
+
+            <div class="source-list">
+              <h4>Fonti citate</h4>
+              <ul>
+                @for (source of card.material.sources; track trackSource($index, source)) {
+                  <li>
+                    <a [href]="source.url" target="_blank" rel="noopener noreferrer">
+                      {{ source.label }}
+                    </a>
+                    <span class="source-kind">{{ source.kind }}</span>
+                  </li>
+                }
+              </ul>
+            </div>
+          </article>
+        }
+      </div>
+    </div>
+  </section>
+
+  <section class="global-sources">
+    <div class="container">
+      <h2>Indice completo fonti</h2>
+      <p>
+        Tutti i link usati per metriche e descrizioni sono riportati qui in forma
+        centralizzata.
+      </p>
+      <ul class="global-source-list">
+        @for (source of allSources(); track trackSource($index, source)) {
+          <li>
+            <a [href]="source.url" target="_blank" rel="noopener noreferrer">
+              {{ source.label }}
+            </a>
+            <span>{{ source.kind }}</span>
+          </li>
+        }
+      </ul>
+    </div>
+  </section>
+</main>

frontend/src/app/features/materials/materials-page.component.scss

@@ -0,0 +1,546 @@
+.materials-page {
+  --materials-bg: #ffffff;
+  --materials-accent: #c23b22;
+  --materials-muted: #5f6771;
+  --materials-card: #ffffff;
+  background: var(--materials-bg);
+  color: var(--color-text-main);
+}
+
+.hero {
+  padding: 5rem 0 2.25rem;
+  position: relative;
+  overflow: hidden;
+}
+
+.hero::before {
+  content: '';
+  position: absolute;
+  inset: -40% -15% auto auto;
+  width: 420px;
+  height: 420px;
+  background: radial-gradient(circle, rgba(194, 59, 34, 0.08), transparent 70%);
+  pointer-events: none;
+}
+
+.hero-inner {
+  position: relative;
+  z-index: 1;
+}
+
+.hero h1 {
+  margin: 0.4rem 0 1rem;
+  font-size: clamp(2rem, 4vw, 3rem);
+  line-height: 1.05;
+}
+
+.hero-lead {
+  margin: 0;
+  max-width: 68ch;
+  font-size: 1.05rem;
+  color: var(--color-text-main);
+}
+
+.hero-note {
+  margin: 0.9rem 0 0;
+  color: var(--materials-muted);
+}
+
+.selector-section,
+.chart-section,
+.table-section,
+.quality-section,
+.materials-section,
+.global-sources {
+  padding: 1.8rem 0;
+}
+
+.selector-grid {
+  margin-top: 1rem;
+  display: flex;
+  flex-wrap: wrap;
+  gap: 0.6rem;
+}
+
+.selector-chip {
+  border: 1px solid var(--color-border);
+  background: #fff;
+  color: var(--color-text-main);
+  border-radius: 999px;
+  padding: 0.5rem 0.9rem;
+  display: inline-flex;
+  align-items: center;
+  gap: 0.5rem;
+  font-weight: 600;
+  cursor: pointer;
+  transition:
+    transform 0.2s ease,
+    border-color 0.2s ease,
+    box-shadow 0.2s ease,
+    background-color 0.2s ease;
+}
+
+.selector-chip:hover:enabled {
+  transform: translateY(-1px);
+  border-color: var(--materials-accent);
+  box-shadow: 0 4px 12px rgb(16 24 32 / 0.12);
+}
+
+.selector-chip:disabled {
+  opacity: 0.45;
+  cursor: not-allowed;
+}
+
+.selector-chip.is-selected {
+  border-color: var(--materials-accent);
+  background: #fff3ee;
+}
+
+.selector-dot {
+  width: 0.7rem;
+  height: 0.7rem;
+  border-radius: 50%;
+  border: 1px solid rgb(0 0 0 / 0.15);
+  display: inline-block;
+}
+
+.selector-help {
+  margin-top: 0.8rem;
+  color: var(--materials-muted);
+}
+
+.chart-layout {
+  display: grid;
+  gap: 1rem;
+  grid-template-columns: minmax(0, 2fr) minmax(0, 1fr);
+  align-items: start;
+}
+
+.chart-card,
+.explain-card,
+.material-card,
+.table-wrap,
+.quality-card,
+.guide-card {
+  background: var(--materials-card);
+  border: 1px solid var(--color-border);
+  border-radius: 1rem;
+  box-shadow: 0 10px 28px rgb(16 24 32 / 0.05);
+}
+
+.chart-card {
+  padding: 1rem;
+}
+
+.chart-header h2 {
+  margin: 0;
+}
+
+.chart-header p {
+  margin: 0.5rem 0 0;
+  color: var(--materials-muted);
+}
+
+.radar-chart {
+  width: 100%;
+  max-width: 520px;
+  margin: 0 auto;
+  display: block;
+}
+
+.chart-rings polygon {
+  fill: none;
+  stroke: #d7d9de;
+  stroke-width: 1;
+}
+
+.chart-axes line {
+  stroke: #c3c8cf;
+  stroke-width: 1;
+}
+
+.chart-axes text {
+  font-size: 0.75rem;
+  fill: #4f5a66;
+  font-weight: 600;
+}
+
+.series-shape {
+  stroke-width: 2.2;
+  transition: filter 0.2s ease;
+}
+
+.series-shape.is-hovered {
+  filter: drop-shadow(0 3px 8px rgb(16 24 32 / 0.26));
+}
+
+.series-node {
+  stroke: #ffffff;
+  stroke-width: 1.2;
+}
+
+.chart-legend {
+  margin-top: 0.75rem;
+  display: flex;
+  flex-wrap: wrap;
+  gap: 0.6rem;
+}
+
+.legend-item {
+  border: 1px solid var(--color-border);
+  border-radius: 999px;
+  padding: 0.35rem 0.7rem;
+  background: #fff;
+  display: inline-flex;
+  gap: 0.45rem;
+  align-items: center;
+  font-weight: 600;
+  cursor: default;
+}
+
+.legend-dot {
+  width: 0.65rem;
+  height: 0.65rem;
+  border-radius: 50%;
+  display: inline-block;
+}
+
+.explain-card {
+  padding: 1rem;
+}
+
+.explain-card h3 {
+  margin: 0;
+}
+
+.explain-card p {
+  margin: 0.75rem 0;
+  color: var(--materials-muted);
+}
+
+.explain-card ul {
+  margin: 0;
+  padding-left: 1.1rem;
+  display: grid;
+  gap: 0.45rem;
+}
+
+.table-wrap {
+  overflow-x: auto;
+}
+
+.table-wrap table {
+  width: 100%;
+  border-collapse: collapse;
+  min-width: 760px;
+}
+
+.table-wrap th,
+.table-wrap td {
+  padding: 0.6rem 0.75rem;
+  border-bottom: 1px solid var(--color-border);
+  text-align: left;
+}
+
+.table-wrap thead th {
+  background: #f8fafd;
+  font-size: 0.84rem;
+  letter-spacing: 0.01em;
+}
+
+.table-wrap tbody tr:hover {
+  background: #f8fbff;
+}
+
+.quality-intro {
+  margin: 0.4rem 0 0;
+  color: var(--materials-muted);
+  max-width: 72ch;
+}
+
+.visual-guide-grid {
+  margin-top: 1rem;
+  display: grid;
+  gap: 1rem;
+  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
+}
+
+.visual-guide-card {
+  background: #fff;
+  border: 1px solid var(--color-border);
+  border-radius: 1rem;
+  box-shadow: 0 10px 28px rgb(16 24 32 / 0.05);
+  padding: 0.85rem;
+  display: grid;
+  gap: 0.55rem;
+}
+
+.visual-guide-category {
+  margin: 0;
+  font-size: 0.75rem;
+  font-weight: 700;
+  letter-spacing: 0.04em;
+  text-transform: uppercase;
+  color: #2563b8;
+}
+
+.visual-guide-card h3 {
+  margin: 0;
+  font-size: 1.02rem;
+}
+
+.visual-guide-media {
+  border: 1px solid var(--color-border);
+  border-radius: 0.75rem;
+  overflow: hidden;
+  background: #f7f8fb;
+  min-height: 170px;
+}
+
+.visual-guide-media img {
+  width: 100%;
+  height: 185px;
+  object-fit: cover;
+  display: block;
+}
+
+.visual-guide-card p {
+  margin: 0;
+  color: var(--materials-muted);
+  font-size: 0.92rem;
+  line-height: 1.42;
+}
+
+.visual-guide-calc {
+  margin-top: 0.2rem;
+  color: var(--color-text-main);
+}
+
+.calculator-logic-card {
+  margin-top: 1rem;
+  background: #fff;
+  border: 1px solid var(--color-border);
+  border-radius: 1rem;
+  box-shadow: 0 10px 28px rgb(16 24 32 / 0.05);
+  padding: 1rem;
+}
+
+.calculator-logic-card h3 {
+  margin: 0;
+}
+
+.calculator-logic-card p {
+  margin: 0.6rem 0 0;
+  color: var(--materials-muted);
+}
+
+.logic-table-wrap {
+  margin-top: 0.75rem;
+  overflow-x: auto;
+}
+
+.logic-table-wrap table {
+  width: 100%;
+  border-collapse: collapse;
+  min-width: 720px;
+}
+
+.logic-table-wrap th,
+.logic-table-wrap td {
+  border-bottom: 1px solid var(--color-border);
+  text-align: left;
+  padding: 0.62rem 0.7rem;
+}
+
+.logic-table-wrap thead th {
+  background: #f8fafd;
+  font-size: 0.84rem;
+  letter-spacing: 0.01em;
+}
+
+.quality-layout {
+  margin-top: 1rem;
+  display: grid;
+  gap: 1rem;
+  grid-template-columns: 1fr;
+}
+
+.quality-card {
+  padding: 1rem;
+}
+
+.quality-card h3 {
+  margin: 0;
+}
+
+.quality-card ul {
+  margin: 0.7rem 0 0;
+  padding-left: 1rem;
+  display: grid;
+  gap: 0.45rem;
+  color: var(--materials-muted);
+}
+
+.guides-grid {
+  margin-top: 1rem;
+  display: grid;
+  gap: 0.8rem;
+  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
+}
+
+.guide-card {
+  padding: 0.9rem;
+}
+
+.guide-card h3 {
+  margin: 0;
+  font-size: 1rem;
+}
+
+.guide-card p {
+  margin: 0.55rem 0 0;
+  color: var(--materials-muted);
+}
+
+.guide-effect {
+  color: var(--color-text-main);
+  font-weight: 500;
+}
+
+.materials-grid {
+  display: grid;
+  gap: 1rem;
+  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
+}
+
+.material-card {
+  padding: 1rem;
+}
+
+.material-card h3 {
+  margin: 0;
+  font-size: 1.25rem;
+}
+
+.material-card header p {
+  margin: 0.55rem 0 0;
+  color: var(--materials-muted);
+}
+
+.material-media {
+  margin-top: 0.85rem;
+  border-radius: 0.75rem;
+  overflow: hidden;
+  border: 1px solid var(--color-border);
+  background: #f7f8fb;
+  min-height: 180px;
+}
+
+.material-media img {
+  width: 100%;
+  height: 220px;
+  object-fit: cover;
+  display: block;
+}
+
+.media-fallback {
+  min-height: 180px;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  padding: 1rem;
+  color: var(--materials-muted);
+  text-align: center;
+  font-size: 0.9rem;
+  line-height: 1.45;
+}
+
+.material-columns {
+  margin-top: 0.9rem;
+  display: grid;
+  gap: 0.7rem;
+}
+
+.material-columns h4,
+.source-list h4 {
+  margin: 0;
+  font-size: 0.95rem;
+}
+
+.material-columns ul,
+.source-list ul,
+.global-source-list {
+  margin: 0.45rem 0 0;
+  padding-left: 1rem;
+  display: grid;
+  gap: 0.35rem;
+}
+
+.source-list {
+  margin-top: 0.9rem;
+  padding-top: 0.9rem;
+  border-top: 1px solid var(--color-border);
+}
+
+.source-list li,
+.global-source-list li {
+  display: flex;
+  gap: 0.5rem;
+  align-items: baseline;
+  justify-content: space-between;
+}
+
+.source-list a,
+.global-source-list a {
+  color: #14409b;
+  word-break: break-word;
+}
+
+.source-kind {
+  color: var(--materials-muted);
+  font-size: 0.8rem;
+  white-space: nowrap;
+}
+
+.global-sources p {
+  color: var(--materials-muted);
+}
+
+.global-source-list {
+  background: #fff;
+  border: 1px solid var(--color-border);
+  border-radius: 0.9rem;
+  padding: 1rem 1rem 1rem 1.35rem;
+}
+
+@media (max-width: 1024px) {
+  .chart-layout {
+    grid-template-columns: 1fr;
+  }
+
+  .quality-layout {
+    grid-template-columns: 1fr;
+  }
+}
+
+@media (max-width: 640px) {
+  .hero {
+    padding-top: 4.2rem;
+  }
+
+  .chart-card,
+  .explain-card,
+  .material-card {
+    padding: 0.85rem;
+  }
+
+  .table-wrap table {
+    min-width: 640px;
+  }
+
+  .source-list li,
+  .global-source-list li {
+    flex-direction: column;
+    align-items: flex-start;
+  }
+}

frontend/src/app/features/order/order.component.html

@@ -1,4 +1,4 @@
-<div class="container ui-page-hero ui-page-hero--spacious">
+<div class="container ui-page-hero ui-page-hero--spacious order-hero">
   <h1 class="ui-page-title">
     {{ "TRACKING.TITLE" | translate }}
     <ng-container *ngIf="order()">

frontend/src/app/features/order/order.component.scss

@@ -1,3 +1,7 @@
+.order-hero {
+  padding-top: calc(var(--space-12) + var(--space-5));
+}
+
 .subtitle {
   font-size: 1.125rem;
 }
@@ -244,16 +248,17 @@
 .status-timeline {
   display: flex;
   justify-content: space-between;
-  margin-bottom: var(--space-8);
+  margin-top: var(--space-5);
+  margin-bottom: var(--space-10);
+  padding: 0 var(--space-2);
   position: relative;
-  /* padding: var(--space-6); */ /* Removed if it was here to match non-card layout */
 
   &::before {
     content: "";
     position: absolute;
     top: 15px;
-    left: 12.5%;
-    right: 12.5%;
+    left: calc(12.5% + var(--space-2));
+    right: calc(12.5% + var(--space-2));
     height: 2px;
     background: var(--color-border);
     z-index: 1;
@@ -279,13 +284,14 @@
     align-items: center;
     justify-content: center;
     font-weight: 600;
-    margin-bottom: var(--space-2);
+    margin-bottom: var(--space-3);
     color: var(--color-text-muted);
     transition: all 0.3s ease;
   }
 
   .label {
     font-size: 0.85rem;
+    line-height: 1.2;
     color: var(--color-text-muted);
     font-weight: 500;
   }
@@ -315,7 +321,14 @@
 }
 
 @media (max-width: 600px) {
+  .order-hero {
+    padding-top: calc(var(--space-8) + var(--space-4));
+  }
+
   .status-timeline {
+    margin-top: var(--space-4);
+    margin-bottom: var(--space-8);
+    padding: 0;
     flex-direction: column;
     align-items: flex-start;
     gap: var(--space-4);

frontend/src/app/features/order/order.component.ts

@@ -1,5 +1,5 @@
-import { Component, OnInit, inject, signal } from '@angular/core';
-import { CommonModule } from '@angular/common';
+import { Component, OnInit, PLATFORM_ID, inject, signal } from '@angular/core';
+import { CommonModule, isPlatformBrowser } from '@angular/common';
 import { ActivatedRoute, Router } from '@angular/router';
 import { AppButtonComponent } from '../../shared/components/app-button/app-button.component';
 import { AppCardComponent } from '../../shared/components/app-card/app-card.component';
@@ -75,6 +75,7 @@ export class OrderComponent implements OnInit {
   private router = inject(Router);
   private quoteService = inject(QuoteEstimatorService);
   private translate = inject(TranslateService);
+  private readonly isBrowser = isPlatformBrowser(inject(PLATFORM_ID));
 
   orderId: string | null = null;
   selectedPaymentMethod: 'twint' | 'bill' | null = 'twint';
@@ -115,6 +116,9 @@ export class OrderComponent implements OnInit {
   }
 
   downloadQrInvoice() {
+    if (!this.isBrowser) {
+      return;
+    }
     const orderId = this.orderId;
     if (!orderId) return;
     this.quoteService.getOrderConfirmation(orderId).subscribe({
@@ -153,7 +157,7 @@ export class OrderComponent implements OnInit {
 
   openTwintPayment(): void {
     const openUrl = this.twintOpenUrl();
-    if (typeof window !== 'undefined' && openUrl) {
+    if (this.isBrowser && openUrl) {
       window.open(openUrl, '_blank');
     }
   }

frontend/src/app/features/shop/components/product-card/product-card.component.html

@@ -1,5 +1,5 @@
 <article class="product-card">
-  <a class="media" [routerLink]="productLink()">
+  <a class="media" [routerLink]="productLink()" [state]="navigationState()">
     @if (imageUrl(); as imageUrl) {
       <img
         [src]="imageUrl"
@@ -13,6 +13,11 @@
     }
 
     <div class="card-badges">
+      @if (hasModelPreview()) {
+        <span class="badge badge-model">
+          {{ "SHOP.MODEL_3D" | translate }}
+        </span>
+      }
       @if (cartQuantity() > 0) {
         <span class="badge badge-cart">
           {{ "SHOP.IN_CART_SHORT" | translate: { count: cartQuantity() } }}
@@ -24,13 +29,12 @@
   <div class="content">
     <div class="meta">
       <span class="category">{{ product().category.name }}</span>
-      @if (product().model3d) {
-        <span class="model-pill">{{ "SHOP.MODEL_3D" | translate }}</span>
-      }
     </div>
 
     <h3 class="name">
-      <a [routerLink]="productLink()">{{ product().name }}</a>
+      <a [routerLink]="productLink()" [state]="navigationState()">{{
+        product().name
+      }}</a>
     </h3>
 
     <p class="excerpt">
@@ -45,9 +49,23 @@
         }
       </div>
 
-      <a [routerLink]="productLink()" class="view-btn">{{
-        "SHOP.DETAILS" | translate
-      }}</a>
+      <div class="footer-actions">
+        <button
+          type="button"
+          class="cart-btn"
+          (click)="addToCart()"
+          [disabled]="!defaultVariantId() || addingToCart()"
+        >
+          {{ (addingToCart() ? "SHOP.ADDING" : "SHOP.ADD_CART") | translate }}
+        </button>
+
+        <a
+          [routerLink]="productLink()"
+          [state]="navigationState()"
+          class="view-btn"
+          >{{ "SHOP.DETAILS" | translate }}</a
+        >
+      </div>
     </div>
   </div>
 </article>

frontend/src/app/features/shop/components/product-card/product-card.component.scss

@@ -21,8 +21,9 @@
 .media {
   position: relative;
   display: block;
-  min-height: 244px;
+  aspect-ratio: 1 / 1;
   background: #f2eee5;
+  overflow: hidden;
 }
 
 .media img {
@@ -35,7 +36,6 @@
 .image-fallback {
   width: 100%;
   height: 100%;
-  min-height: 244px;
   display: flex;
   align-items: flex-end;
   padding: var(--space-5);
@@ -87,6 +87,12 @@
   color: #fff;
 }
 
+.badge-model {
+  background: rgba(255, 255, 255, 0.92);
+  color: var(--color-text-muted);
+  border: 1px solid rgba(16, 24, 32, 0.08);
+}
+
 .content {
   display: grid;
   gap: var(--space-4);
@@ -100,8 +106,7 @@
   gap: 0.55rem;
 }
 
-.category,
-.model-pill {
+.category {
   font-size: 0.74rem;
   text-transform: uppercase;
   letter-spacing: 0.08em;
@@ -112,15 +117,6 @@
   font-weight: 700;
 }
 
-.model-pill {
-  display: inline-flex;
-  padding: 0.18rem 0.55rem;
-  border-radius: 999px;
-  border: 1px solid rgba(16, 24, 32, 0.08);
-  color: var(--color-text-muted);
-  background: rgba(255, 255, 255, 0.72);
-}
-
 .name {
   margin: 0;
   font-size: 1.2rem;
@@ -135,7 +131,13 @@
 .excerpt {
   margin: 0;
   color: var(--color-text-muted);
-  line-height: 1.55;
+  line-height: 1.45;
+  overflow: hidden;
+  display: -webkit-box;
+  -webkit-line-clamp: 2;
+  line-clamp: 2;
+  -webkit-box-orient: vertical;
+  text-overflow: ellipsis;
 }
 
 .footer {
@@ -145,6 +147,12 @@
   gap: var(--space-4);
 }
 
+.footer-actions {
+  display: inline-flex;
+  align-items: center;
+  gap: 0.5rem;
+}
+
 .pricing {
   display: grid;
   gap: 0.1rem;
@@ -160,27 +168,49 @@
   color: var(--color-text-muted);
 }
 
+.cart-btn,
 .view-btn {
   display: inline-flex;
   align-items: center;
+  justify-content: center;
   min-height: 2.35rem;
   padding: 0 0.9rem;
   border-radius: 999px;
-  background: rgba(16, 24, 32, 0.06);
-  color: var(--color-neutral-900);
   font-size: 0.9rem;
   font-weight: 600;
+  border: 1px solid transparent;
+}
+
+.cart-btn {
+  background: var(--color-brand);
+  color: var(--color-neutral-900);
+  border-color: color-mix(in srgb, var(--color-brand) 72%, #d5ac00);
+  cursor: pointer;
+}
+
+.cart-btn:disabled {
+  opacity: 0.6;
+  cursor: not-allowed;
+}
+
+.view-btn {
+  background: rgba(16, 24, 32, 0.06);
+  color: var(--color-neutral-900);
   text-decoration: none;
 }
 
 @media (max-width: 640px) {
-  .media,
-  .image-fallback {
-    min-height: 220px;
-  }
-
   .footer {
     align-items: start;
     flex-direction: column;
   }
+
+  .footer-actions {
+    width: 100%;
+  }
+
+  .cart-btn,
+  .view-btn {
+    flex: 1;
+  }
 }

frontend/src/app/features/shop/components/product-card/product-card.component.ts

@@ -1,8 +1,10 @@
 import { CommonModule } from '@angular/common';
-import { Component, computed, inject, input } from '@angular/core';
-import { RouterLink } from '@angular/router';
+import { Component, computed, inject, input, signal } from '@angular/core';
+import { Router, RouterLink } from '@angular/router';
 import { TranslateModule } from '@ngx-translate/core';
+import { finalize } from 'rxjs';
 import { ShopProductSummary, ShopService } from '../../services/shop.service';
+import { ShopRouteService } from '../../services/shop-route.service';
 
 @Component({
   selector: 'app-product-card',
@@ -12,16 +14,17 @@ import { ShopProductSummary, ShopService } from '../../services/shop.service';
   styleUrl: './product-card.component.scss',
 })
 export class ProductCardComponent {
+  private readonly router = inject(Router);
   private readonly shopService = inject(ShopService);
+  private readonly shopRouteService = inject(ShopRouteService);
 
   readonly product = input.required<ShopProductSummary>();
   readonly cartQuantity = input(0);
+  readonly addingToCart = signal(false);
 
-  readonly productLink = computed(() => [
-    '/shop',
-    this.product().category.slug,
-    this.product().slug,
-  ]);
+  readonly productLink = computed(() =>
+    this.shopRouteService.productCommands(this.product()),
+  );
 
   readonly imageUrl = computed(() => {
     const image = this.product().primaryImage;
@@ -32,6 +35,11 @@ export class ProductCardComponent {
     );
   });
 
+  readonly hasModelPreview = computed(() => {
+    const model = this.product().model3d;
+    return !!(model?.url && model.originalFilename);
+  });
+
   priceLabel(): number {
     return this.product().priceFromChf;
   }
@@ -39,4 +47,31 @@ export class ProductCardComponent {
   hasPriceRange(): boolean {
     return this.product().priceFromChf !== this.product().priceToChf;
   }
+
+  defaultVariantId(): string | null {
+    return this.product().defaultVariant?.id ?? null;
+  }
+
+  addToCart(): void {
+    const variantId = this.defaultVariantId();
+    if (!variantId || this.addingToCart()) {
+      return;
+    }
+
+    this.addingToCart.set(true);
+    this.shopService
+      .addToCart(variantId, 1)
+      .pipe(finalize(() => this.addingToCart.set(false)))
+      .subscribe({
+        error: () => {
+          // Keep card UX simple: product detail handles error messaging in depth.
+        },
+      });
+  }
+
+  navigationState(): { shopReturnUrl: string } {
+    return {
+      shopReturnUrl: this.router.url,
+    };
+  }
 }

frontend/src/app/features/shop/product-detail.component.html

@@ -1,8 +1,8 @@
 <section class="product-page">
   <div class="container wrapper">
-    <a [routerLink]="productLinkRoot()" class="back-link">
+    <button type="button" class="back-link" (click)="goBackToShop()">
       ← {{ "SHOP.BACK" | translate }}
-    </a>
+    </button>
 
     @if (loading()) {
       <div class="detail-grid skeleton-grid">
@@ -15,16 +15,37 @@
       } @else {
         @if (product(); as p) {
           <nav class="breadcrumbs">
-            <a routerLink="/shop">{{ "SHOP.BREADCRUMB_ROOT" | translate }}</a>
+            <a [routerLink]="shopRootLink()">{{
+              "SHOP.BREADCRUMB_ROOT" | translate
+            }}</a>
             @for (crumb of p.breadcrumbs; track crumb.id) {
               <span>/</span>
-              <a [routerLink]="['/shop', crumb.slug]">{{ crumb.name }}</a>
+              <a [routerLink]="categoryLink(crumb.slug)">{{ crumb.name }}</a>
             }
           </nav>
 
           <div class="detail-grid">
             <section class="visual-column">
               <div class="hero-media">
+                @if (galleryImages().length > 1) {
+                  <button
+                    type="button"
+                    class="hero-nav hero-nav-prev"
+                    (click)="showPreviousImage()"
+                    [attr.aria-label]="'SHOP.PREVIOUS_IMAGE' | translate"
+                  >
+                    ‹
+                  </button>
+                  <button
+                    type="button"
+                    class="hero-nav hero-nav-next"
+                    (click)="showNextImage()"
+                    [attr.aria-label]="'SHOP.NEXT_IMAGE' | translate"
+                  >
+                    ›
+                  </button>
+                }
+
                 @if (imageUrl(selectedImage()); as imageUrl) {
                   <img
                     [src]="imageUrl"
@@ -39,7 +60,7 @@
               </div>
 
               @if (galleryImages().length > 1) {
-                <div class="thumb-grid">
+                <div class="thumb-strip">
                   @for (image of galleryImages(); track image.mediaAssetId) {
                     <button
                       type="button"
@@ -60,15 +81,12 @@
               }
 
               @if (p.model3d) {
-                <app-card class="viewer-card">
-                  <div class="viewer-head">
-                    <div>
-                      <p class="viewer-kicker">
-                        {{ "SHOP.MODEL_3D" | translate }}
-                      </p>
-                      <h3>{{ "SHOP.MODEL_TITLE" | translate }}</h3>
-                    </div>
-                    <div class="dimensions">
+                <div class="model-launch-row">
+                  <div>
+                    <p class="viewer-kicker">
+                      {{ "SHOP.MODEL_3D" | translate }}
+                    </p>
+                    <div class="dimensions dimensions-inline">
                       <span>
                         X
                         {{ p.model3d.boundingBoxXMm || 0 | number: "1.0-1" }} mm
@@ -83,25 +101,14 @@
                       </span>
                     </div>
                   </div>
-
-                  @if (modelLoading()) {
-                    <div class="viewer-state">
-                      {{ "SHOP.MODEL_LOADING" | translate }}
-                    </div>
-                  } @else if (modelError()) {
-                    <div class="viewer-state viewer-state-error">
-                      {{ "SHOP.MODEL_UNAVAILABLE" | translate }}
-                    </div>
-                  } @else {
-                    @if (modelFile(); as modelPreviewFile) {
-                      <app-stl-viewer
-                        [file]="modelPreviewFile"
-                        [height]="360"
-                        [color]="selectedVariant()?.colorHex || '#facf0a'"
-                      ></app-stl-viewer>
-                    }
-                  }
-                </app-card>
+                  <button
+                    type="button"
+                    class="model-open-btn"
+                    (click)="openModelModal()"
+                  >
+                    {{ "SHOP.MODEL_OPEN" | translate }}
+                  </button>
+                </div>
               }
             </section>
 
@@ -114,18 +121,18 @@
                 <p class="excerpt">
                   {{
                     p.excerpt ||
-                      p.description ||
+                      descriptionPlainText(p.description) ||
                       ("SHOP.EXCERPT_FALLBACK" | translate)
                   }}
                 </p>
               </div>
 
-              <app-card>
+              <app-card class="purchase-shell">
                 <div class="purchase-card">
                   <div class="price-row">
                     <div>
                       <p class="panel-kicker">
-                        {{ "SHOP.SELECT_COLOR" | translate }}
+                        {{ "SHOP.SELECT_MATERIAL" | translate }}
                       </p>
                       <h3>{{ priceLabel() | currency: "CHF" }}</h3>
                     </div>
@@ -140,29 +147,121 @@
                     }
                   </div>
 
-                  <div class="variant-grid">
-                    @for (variant of p.variants; track variant.id) {
+                  @if (materialOptions().length > 1) {
+                    <div class="material-grid">
+                      @for (material of materialOptions(); track material.key) {
+                        <button
+                          type="button"
+                          class="material-option"
+                          [class.active]="
+                            selectedMaterial()?.key === material.key
+                          "
+                          (click)="selectMaterial(material.key)"
+                        >
+                          <span class="material-copy">
+                            <strong>{{ material.label }}</strong>
+                            <small>
+                              {{
+                                "SHOP.MATERIAL_COLOR_COUNT"
+                                  | translate
+                                    : { count: materialColorCount(material) }
+                              }}
+                            </small>
+                          </span>
+                          <strong>{{
+                            materialPriceLabel(material) | currency: "CHF"
+                          }}</strong>
+                        </button>
+                      }
+                    </div>
+                  }
+
+                  @if (
+                    materialOptions().length > 1 &&
+                    selectedMaterialProperties().length > 0
+                  ) {
+                    <div class="property-grid">
+                      @for (
+                        property of selectedMaterialProperties();
+                        track property.labelKey
+                      ) {
+                        <div
+                          class="property-pill"
+                          [ngClass]="'tone-' + property.tone"
+                        >
+                          <span>{{ property.labelKey | translate }}</span>
+                          <strong>{{ property.valueKey | translate }}</strong>
+                        </div>
+                      }
+                    </div>
+                  }
+
+                  <div class="color-selector-block">
+                    <div class="selector-head">
+                      <p class="panel-kicker">
+                        {{ "SHOP.SELECT_COLOR" | translate }}
+                      </p>
+                    </div>
+
+                    @if (selectedVariant(); as activeVariant) {
                       <button
                         type="button"
-                        class="variant-option"
-                        [class.active]="selectedVariant()?.id === variant.id"
-                        (click)="selectVariant(variant)"
+                        class="color-trigger"
+                        [class.open]="colorPopupOpen()"
+                        (click)="toggleColorPopup()"
                       >
-                        <span
-                          class="variant-swatch"
-                          [style.background-color]="colorHex(variant)"
-                        ></span>
-                        <span class="variant-copy">
-                          <strong>{{ colorLabel(variant) }}</strong>
-                          @if (variant.variantLabel) {
-                            <small>{{ variant.variantLabel }}</small>
-                          }
+                        <span class="color-trigger__ring">
+                          <span
+                            class="color-trigger__swatch"
+                            [style.background-color]="colorHex(activeVariant)"
+                          ></span>
+                        </span>
+
+                        <span class="color-trigger__copy">
+                          <strong>{{ colorLabel(activeVariant) }}</strong>
+                          <small>{{ selectedMaterial()?.label }}</small>
                         </span>
-                        <strong>{{
-                          variant.priceChf | currency: "CHF"
-                        }}</strong>
                       </button>
                     }
+
+                    @if (colorPopupOpen()) {
+                      <button
+                        type="button"
+                        class="color-popup-backdrop"
+                        (click)="closeColorPopup()"
+                      ></button>
+                      <div class="color-popup">
+                        <div class="color-popup__category">
+                          {{ selectedMaterial()?.label || "" | uppercase }}
+                        </div>
+
+                        <div class="color-popup__grid">
+                          @for (variant of colorOptions(); track variant.id) {
+                            <button
+                              type="button"
+                              class="color-popup__item"
+                              (click)="selectVariant(variant)"
+                            >
+                              <span
+                                class="color-popup__ring"
+                                [class.active]="
+                                  selectedVariant()?.id === variant.id
+                                "
+                              >
+                                <span
+                                  class="color-popup__swatch"
+                                  [style.background-color]="colorHex(variant)"
+                                ></span>
+                              </span>
+
+                              <span class="color-popup__name">{{
+                                colorLabel(variant)
+                              }}</span>
+                            </button>
+                          }
+                        </div>
+                      </div>
+                    }
                   </div>
 
                   <div class="quantity-row">
@@ -205,14 +304,62 @@
                 </div>
               </app-card>
 
-              @if (p.description) {
+              @if (descriptionPlainText(p.description)) {
                 <div class="description-block">
                   <h2>{{ "SHOP.DESCRIPTION_TITLE" | translate }}</h2>
-                  <p>{{ p.description }}</p>
+                  <div
+                    class="description-block__content"
+                    [innerHTML]="descriptionRichHtml(p.description)"
+                  ></div>
                 </div>
               }
             </section>
           </div>
+
+          @if (modelModalOpen()) {
+            <button
+              type="button"
+              class="model-modal-backdrop"
+              (click)="closeModelModal()"
+            ></button>
+            <div class="model-modal" role="dialog" aria-modal="true">
+              <div class="model-modal-head">
+                <div>
+                  <p class="viewer-kicker">{{ "SHOP.MODEL_3D" | translate }}</p>
+                  <h3>{{ "SHOP.MODEL_TITLE" | translate }}</h3>
+                </div>
+                <button
+                  type="button"
+                  class="model-close-btn"
+                  (click)="closeModelModal()"
+                  [attr.aria-label]="'SHOP.MODEL_CLOSE' | translate"
+                >
+                  ×
+                </button>
+              </div>
+
+              <div class="model-modal-body">
+                @if (modelLoading()) {
+                  <div class="viewer-state viewer-loading">
+                    <span class="spinner"></span>
+                    <span>{{ "SHOP.MODEL_LOADING" | translate }}</span>
+                  </div>
+                } @else if (modelError()) {
+                  <div class="viewer-state viewer-state-error">
+                    {{ "SHOP.MODEL_UNAVAILABLE" | translate }}
+                  </div>
+                } @else {
+                  @if (modelFile(); as modelPreviewFile) {
+                    <app-stl-viewer
+                      [file]="modelPreviewFile"
+                      [height]="420"
+                      [color]="colorHex(selectedVariant())"
+                    ></app-stl-viewer>
+                  }
+                }
+              </div>
+            </div>
+          }
         }
       }
     }

frontend/src/app/features/shop/product-detail.component.scss

@@ -1,11 +1,11 @@
 .product-page {
-  padding: var(--space-8) 0 var(--space-12);
-  background: linear-gradient(180deg, #faf7ef 0%, var(--color-bg) 15rem);
+  padding: var(--space-5) 0 var(--space-10);
+  background: var(--color-bg);
 }
 
 .wrapper {
   display: grid;
-  gap: var(--space-6);
+  gap: var(--space-4);
 }
 
 .back-link,
@@ -13,6 +13,15 @@
   color: var(--color-text-muted);
 }
 
+.back-link {
+  padding: 0;
+  border: 0;
+  background: none;
+  font: inherit;
+  cursor: pointer;
+  text-align: left;
+}
+
 .breadcrumbs {
   display: flex;
   flex-wrap: wrap;
@@ -24,6 +33,7 @@
   display: grid;
   gap: var(--space-8);
   grid-template-columns: minmax(0, 1.05fr) minmax(320px, 0.95fr);
+  align-items: start;
 }
 
 .visual-column,
@@ -32,26 +42,39 @@
   gap: var(--space-5);
 }
 
+.visual-column {
+  align-content: start;
+}
+
+.info-column {
+  gap: var(--space-3);
+  align-content: start;
+}
+
 .hero-media {
-  min-height: 480px;
+  position: relative;
+  aspect-ratio: 1 / 1;
+  min-height: 420px;
+  max-height: 620px;
   overflow: hidden;
   border-radius: 1.25rem;
-  border: 1px solid rgba(16, 24, 32, 0.08);
+  border: 1px solid rgba(16, 24, 32, 0.12);
   background: #f2eee5;
-  box-shadow: 0 12px 28px rgba(16, 24, 32, 0.05);
+  box-shadow: 0 6px 14px rgba(16, 24, 32, 0.04);
 }
 
 .hero-image {
   width: 100%;
   height: 100%;
   display: block;
-  object-fit: cover;
+  object-fit: contain;
+  background: #f2eee5;
 }
 
 .image-fallback {
   width: 100%;
   height: 100%;
-  min-height: 480px;
+  min-height: 420px;
   display: flex;
   align-items: flex-end;
   padding: var(--space-6);
@@ -76,24 +99,31 @@
 }
 
 .thumb-grid {
-  display: grid;
-  gap: var(--space-3);
-  grid-template-columns: repeat(auto-fit, minmax(90px, 1fr));
+  display: contents;
+}
+
+.thumb-strip {
+  display: flex;
+  gap: 0.65rem;
+  overflow-x: auto;
+  padding: 0.1rem;
+  scrollbar-width: thin;
 }
 
 .thumb {
-  min-height: 92px;
+  flex: 0 0 92px;
+  height: 92px;
   overflow: hidden;
   border-radius: 0.85rem;
-  border: 1px solid var(--color-border);
-  background: rgba(255, 255, 255, 0.78);
+  border: 1px solid rgba(16, 24, 32, 0.12);
+  background: #fff;
   padding: 0;
   cursor: pointer;
 }
 
 .thumb.active {
-  border-color: rgba(250, 207, 10, 0.65);
-  box-shadow: 0 0 0 2px rgba(250, 207, 10, 0.22);
+  border-color: rgba(250, 207, 10, 0.9);
+  box-shadow: 0 0 0 2px rgba(250, 207, 10, 0.2);
 }
 
 .thumb img,
@@ -105,15 +135,33 @@
   object-fit: cover;
 }
 
-.viewer-card {
-  display: block;
-}
-
-.viewer-head {
+.model-launch-row {
   display: flex;
   justify-content: space-between;
-  gap: var(--space-4);
-  margin-bottom: var(--space-4);
+  gap: 0.8rem;
+  align-items: center;
+  width: min(100%, 440px);
+  justify-self: start;
+  padding: 0.72rem 0.82rem;
+  border: 1px solid rgba(16, 24, 32, 0.12);
+  border-radius: 1rem;
+  background: #fff;
+}
+
+.model-open-btn {
+  height: 2.1rem;
+  padding: 0 0.82rem;
+  border-radius: 0.65rem;
+  border: 1px solid rgba(16, 24, 32, 0.18);
+  background: #fff;
+  color: var(--color-text);
+  font-size: 0.86rem;
+  font-weight: 600;
+  cursor: pointer;
+}
+
+.model-open-btn:hover {
+  border-color: rgba(16, 24, 32, 0.3);
 }
 
 .viewer-kicker,
@@ -134,22 +182,16 @@
   text-align: right;
 }
 
-.viewer-state {
-  display: grid;
-  place-items: center;
-  min-height: 220px;
-  border-radius: var(--radius-lg);
-  background: rgba(16, 24, 32, 0.04);
-  color: var(--color-text-muted);
-}
-
-.viewer-state-error {
-  color: var(--color-danger-600);
+.dimensions-inline {
+  display: flex;
+  gap: 0.58rem;
+  text-align: left;
+  font-size: 0.78rem;
 }
 
 .title-block {
   display: grid;
-  gap: var(--space-3);
+  gap: 0.4rem;
 }
 
 .title-meta {
@@ -171,19 +213,20 @@
 }
 
 h1 {
-  font-size: clamp(2rem, 2vw + 1.2rem, 3.2rem);
+  margin: 0;
+  font-size: clamp(1.9rem, 1.45vw + 1.15rem, 2.8rem);
+  line-height: 1.06;
 }
 
-.excerpt,
-.description-block p {
+.excerpt {
   margin: 0;
   color: var(--color-text-muted);
-  line-height: 1.7;
+  line-height: 1.6;
 }
 
 .purchase-card {
   display: grid;
-  gap: var(--space-5);
+  gap: 0.78rem;
 }
 
 .price-row,
@@ -206,52 +249,97 @@ h1 {
   font-weight: 600;
 }
 
-.variant-grid {
+.material-grid {
   display: grid;
-  gap: 0.7rem;
+  gap: 0.55rem;
+  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
 }
 
-.variant-option {
+.material-option {
   display: flex;
   align-items: center;
   justify-content: space-between;
   gap: var(--space-3);
-  padding: 0.9rem 1rem;
-  border-radius: 1rem;
-  border: 1px solid var(--color-border);
-  background: rgba(255, 255, 255, 0.86);
+  padding: 0.68rem 0.8rem;
+  border-radius: 0.85rem;
+  border: 1px solid rgba(16, 24, 32, 0.14);
+  background: #fff;
   cursor: pointer;
   text-align: left;
   transition:
     border-color 0.18s ease,
-    transform 0.18s ease,
+    background 0.18s ease,
     box-shadow 0.18s ease;
 }
 
-.variant-option.active {
-  border-color: rgba(250, 207, 10, 0.6);
-  box-shadow: 0 10px 24px rgba(16, 24, 32, 0.08);
-  transform: translateY(-1px);
+.material-option:hover {
+  border-color: rgba(16, 24, 32, 0.26);
+  box-shadow: 0 2px 8px rgba(16, 24, 32, 0.06);
 }
 
-.variant-swatch {
-  width: 1.2rem;
-  height: 1.2rem;
-  border-radius: 50%;
-  border: 1px solid rgba(16, 24, 32, 0.12);
-  flex: 0 0 auto;
+.material-option.active {
+  border-color: rgba(250, 207, 10, 0.95);
+  background: rgba(250, 207, 10, 0.1);
+  box-shadow: 0 0 0 1px rgba(250, 207, 10, 0.35);
 }
 
-.variant-copy {
+.material-copy {
   display: grid;
-  gap: 0.12rem;
-  flex: 1;
+  gap: 0.14rem;
 }
 
-.variant-copy small {
+.material-copy strong {
+  font-size: 0.95rem;
+}
+
+.material-copy small {
+  font-size: 0.82rem;
   color: var(--color-text-muted);
 }
 
+.material-option > strong {
+  font-size: 1.04rem;
+}
+
+.property-grid {
+  display: grid;
+  grid-template-columns: repeat(3, minmax(0, 1fr));
+  gap: 0.5rem;
+}
+
+.property-pill {
+  display: grid;
+  gap: 0.16rem;
+  padding: 0.58rem 0.65rem;
+  border-radius: 0.8rem;
+  border: 1px solid rgba(16, 24, 32, 0.12);
+  background: #fff;
+}
+
+.property-pill span {
+  font-size: 0.62rem;
+  font-weight: 700;
+  letter-spacing: 0.08em;
+  text-transform: uppercase;
+  color: var(--color-text-muted);
+}
+
+.property-pill strong {
+  font-size: 0.9rem;
+}
+
+.property-pill.tone-strong {
+  border-left: 3px solid rgba(4, 120, 87, 0.7);
+}
+
+.property-pill.tone-neutral {
+  border-left: 3px solid rgba(37, 99, 235, 0.7);
+}
+
+.property-pill.tone-soft {
+  border-left: 3px solid rgba(245, 158, 11, 0.7);
+}
+
 .qty-control {
   display: inline-flex;
   align-items: center;
@@ -292,11 +380,42 @@ h1 {
 
 .description-block {
   display: grid;
-  gap: var(--space-3);
+  gap: 0.55rem;
 }
 
 .description-block h2 {
-  font-size: 1.2rem;
+  margin: 0;
+  font-size: 1.45rem;
+}
+
+.description-block__content {
+  color: var(--color-text-muted);
+  font-size: 1.06rem;
+  line-height: 1.75;
+}
+
+.description-block__content p,
+.description-block__content div {
+  margin: 0 0 0.7rem;
+}
+
+.description-block__content p:last-child,
+.description-block__content div:last-child {
+  margin-bottom: 0;
+}
+
+.description-block__content ul,
+.description-block__content ol {
+  margin: 0 0 0.7rem 1.3rem;
+  padding: 0;
+}
+
+.description-block__content li + li {
+  margin-top: 0.22rem;
+}
+
+:host ::ng-deep app-card.purchase-shell .card-body {
+  padding: 0.95rem 1rem;
 }
 
 .state-card,
@@ -339,10 +458,17 @@ h1 {
   .skeleton-grid {
     grid-template-columns: 1fr;
   }
+
+  .property-grid {
+    grid-template-columns: repeat(2, minmax(0, 1fr));
+  }
+
+  .purchase-card {
+    gap: 0.82rem;
+  }
 }
 
 @media (max-width: 640px) {
-  .viewer-head,
   .price-row,
   .quantity-row {
     flex-direction: column;
@@ -351,6 +477,44 @@ h1 {
 
   .hero-media,
   .image-fallback {
-    min-height: 320px;
+    min-height: 300px;
+  }
+
+  .thumb-strip {
+    gap: 0.5rem;
+  }
+
+  .thumb {
+    flex-basis: 78px;
+    height: 78px;
+  }
+
+  .model-launch-row {
+    width: min(100%, 350px);
+    gap: 0.6rem;
+    padding: 0.58rem 0.65rem;
+  }
+
+  .model-open-btn {
+    height: 1.95rem;
+    padding: 0 0.7rem;
+    font-size: 0.8rem;
+  }
+
+  .dimensions-inline {
+    gap: 0.42rem;
+    font-size: 0.74rem;
+  }
+
+  .property-grid {
+    grid-template-columns: 1fr;
+  }
+
+  .material-grid {
+    grid-template-columns: 1fr;
+  }
+
+  :host ::ng-deep app-card.purchase-shell .card-body {
+    padding: 0.82rem 0.82rem;
   }
 }

frontend/src/app/features/shop/product-detail.component.ts

@@ -1,8 +1,9 @@
-import { CommonModule } from '@angular/common';
+import { CommonModule, isPlatformBrowser } from '@angular/common';
 import {
   Component,
   DestroyRef,
   Injector,
+  PLATFORM_ID,
   computed,
   inject,
   input,
@@ -14,6 +15,7 @@ import { TranslateModule, TranslateService } from '@ngx-translate/core';
 import { catchError, combineLatest, finalize, of, switchMap, tap } from 'rxjs';
 import { SeoService } from '../../core/services/seo.service';
 import { LanguageService } from '../../core/services/language.service';
+import { getColorHex } from '../../core/constants/colors.const';
 import { AppButtonComponent } from '../../shared/components/app-button/app-button.component';
 import { AppCardComponent } from '../../shared/components/app-card/app-card.component';
 import { StlViewerComponent } from '../../shared/components/stl-viewer/stl-viewer.component';
@@ -22,6 +24,20 @@ import {
   ShopProductVariantOption,
   ShopService,
 } from './services/shop.service';
+import { ShopRouteService } from './services/shop-route.service';
+
+interface ShopMaterialOption {
+  key: string;
+  label: string;
+  variants: ShopProductVariantOption[];
+  priceFromChf: number;
+}
+
+interface ShopMaterialProperty {
+  labelKey: string;
+  valueKey: string;
+  tone: 'neutral' | 'strong' | 'soft';
+}
 
 @Component({
   selector: 'app-product-detail',
@@ -38,12 +54,16 @@ import {
   styleUrl: './product-detail.component.scss',
 })
 export class ProductDetailComponent {
+  private static readonly HEX_COLOR_PATTERN =
+    /^#([0-9a-fA-F]{3}|[0-9a-fA-F]{6})$/;
   private readonly destroyRef = inject(DestroyRef);
   private readonly injector = inject(Injector);
   private readonly router = inject(Router);
   private readonly translate = inject(TranslateService);
   private readonly seoService = inject(SeoService);
   private readonly languageService = inject(LanguageService);
+  private readonly shopRouteService = inject(ShopRouteService);
+  private readonly isBrowser = isPlatformBrowser(inject(PLATFORM_ID));
   readonly shopService = inject(ShopService);
 
   readonly categorySlug = input<string | undefined>();
@@ -57,6 +77,9 @@ export class ProductDetailComponent {
   readonly quantity = signal(1);
   readonly isAddingToCart = signal(false);
   readonly addSuccess = signal(false);
+  readonly selectedMaterialKey = signal<string | null>(null);
+  readonly colorPopupOpen = signal(false);
+  readonly modelModalOpen = signal(false);
 
   readonly modelLoading = signal(false);
   readonly modelError = signal(false);
@@ -76,6 +99,59 @@ export class ProductDetailComponent {
     );
   });
 
+  readonly materialOptions = computed<ShopMaterialOption[]>(() => {
+    const product = this.product();
+    if (!product) {
+      return [];
+    }
+
+    const groups = new Map<string, ShopMaterialOption>();
+    for (const variant of product.variants) {
+      const label = this.materialLabelForVariant(variant);
+      const key = label.toLowerCase();
+      const group = groups.get(key);
+      if (group) {
+        group.variants.push(variant);
+        group.priceFromChf = Math.min(group.priceFromChf, variant.priceChf);
+        continue;
+      }
+
+      groups.set(key, {
+        key,
+        label,
+        variants: [variant],
+        priceFromChf: variant.priceChf,
+      });
+    }
+
+    return Array.from(groups.values());
+  });
+
+  readonly selectedMaterial = computed<ShopMaterialOption | null>(() => {
+    const selectedKey = this.selectedMaterialKey();
+    const materials = this.materialOptions();
+    if (!materials.length) {
+      return null;
+    }
+    return (
+      materials.find((material) => material.key === selectedKey) ??
+      materials.find((material) =>
+        material.variants.some(
+          (variant) => variant.id === this.selectedVariant()?.id,
+        ),
+      ) ??
+      materials[0]
+    );
+  });
+
+  readonly colorOptions = computed<ShopProductVariantOption[]>(
+    () => this.selectedMaterial()?.variants ?? [],
+  );
+
+  readonly selectedMaterialProperties = computed<ShopMaterialProperty[]>(() =>
+    this.materialPropertiesFor(this.selectedMaterial()?.label),
+  );
+
   readonly galleryImages = computed(() => {
     const product = this.product();
     if (!product) {
@@ -103,6 +179,15 @@ export class ProductDetailComponent {
     );
   });
 
+  readonly selectedImageIndex = computed(() => {
+    const images = this.galleryImages();
+    const selectedAssetId = this.selectedImageAssetId();
+    const index = images.findIndex(
+      (image) => image.mediaAssetId === selectedAssetId,
+    );
+    return index >= 0 ? index : 0;
+  });
+
   readonly selectedVariantCartQuantity = computed(() =>
     this.shopService.quantityForVariant(this.selectedVariant()?.id),
   );
@@ -131,6 +216,8 @@ export class ProductDetailComponent {
           this.error.set(null);
           this.addSuccess.set(false);
           this.modelError.set(false);
+          this.colorPopupOpen.set(false);
+          this.modelModalOpen.set(false);
         }),
         switchMap(([productSlug]) => {
           if (!productSlug) {
@@ -139,7 +226,7 @@ export class ProductDetailComponent {
             return of(null);
           }
 
-          return this.shopService.getProduct(productSlug).pipe(
+          return this.shopService.getProductByPublicPath(productSlug).pipe(
             catchError((error) => {
               this.product.set(null);
               this.selectedVariantId.set(null);
@@ -165,24 +252,22 @@ export class ProductDetailComponent {
         this.selectedVariantId.set(
           product.defaultVariant?.id ?? product.variants[0]?.id ?? null,
         );
+        this.selectedMaterialKey.set(
+          this.materialKeyForVariant(
+            product.defaultVariant ?? product.variants[0] ?? null,
+          ),
+        );
         this.selectedImageAssetId.set(
           product.primaryImage?.mediaAssetId ??
             product.images[0]?.mediaAssetId ??
             null,
         );
         this.quantity.set(1);
+        this.syncPublicUrl(product);
         this.applySeo(product);
-
-        if (product.model3d?.url && product.model3d.originalFilename) {
-          this.loadModelPreview(
-            product.model3d.url,
-            product.model3d.originalFilename,
-          );
-        } else {
-          this.modelFile.set(null);
-          this.modelLoading.set(false);
-          this.modelError.set(false);
-        }
+        this.modelFile.set(null);
+        this.modelLoading.set(false);
+        this.modelError.set(false);
       });
   }
 
@@ -201,8 +286,45 @@ export class ProductDetailComponent {
     this.selectedImageAssetId.set(mediaAssetId);
   }
 
+  showPreviousImage(): void {
+    const images = this.galleryImages();
+    if (images.length < 2) {
+      return;
+    }
+    const nextIndex =
+      (this.selectedImageIndex() - 1 + images.length) % images.length;
+    this.selectedImageAssetId.set(images[nextIndex].mediaAssetId);
+  }
+
+  showNextImage(): void {
+    const images = this.galleryImages();
+    if (images.length < 2) {
+      return;
+    }
+    const nextIndex = (this.selectedImageIndex() + 1) % images.length;
+    this.selectedImageAssetId.set(images[nextIndex].mediaAssetId);
+  }
+
   selectVariant(variant: ShopProductVariantOption): void {
     this.selectedVariantId.set(variant.id);
+    this.selectedMaterialKey.set(this.materialKeyForVariant(variant));
+    this.colorPopupOpen.set(false);
+    this.addSuccess.set(false);
+  }
+
+  selectMaterial(materialKey: string): void {
+    this.selectedMaterialKey.set(materialKey);
+    this.colorPopupOpen.set(false);
+    const material = this.materialOptions().find(
+      (item) => item.key === materialKey,
+    );
+    const nextVariant =
+      material?.variants.find((variant) => variant.isDefault) ??
+      material?.variants[0] ??
+      null;
+    if (nextVariant) {
+      this.selectedVariantId.set(nextVariant.id);
+    }
     this.addSuccess.set(false);
   }
 
@@ -259,13 +381,81 @@ export class ProductDetailComponent {
     return variant.colorName || variant.variantLabel || '-';
   }
 
-  colorHex(variant: ShopProductVariantOption): string {
-    return variant.colorHex || '#d5d8de';
+  colorHex(variant: ShopProductVariantOption | null | undefined): string {
+    const normalizedHex = this.normalizeHexColor(variant?.colorHex);
+    if (normalizedHex) {
+      return normalizedHex;
+    }
+
+    const fallbackByName = this.colorHexFromName(variant?.colorName);
+    if (fallbackByName) {
+      return fallbackByName;
+    }
+
+    return '#d5d8de';
+  }
+
+  materialPriceLabel(material: ShopMaterialOption): number {
+    return material.priceFromChf;
+  }
+
+  materialColorCount(material: ShopMaterialOption): number {
+    return material.variants.length;
+  }
+
+  toggleColorPopup(): void {
+    this.colorPopupOpen.update((open) => !open);
+  }
+
+  closeColorPopup(): void {
+    this.colorPopupOpen.set(false);
+  }
+
+  openModelModal(): void {
+    const model = this.product()?.model3d;
+    if (!model) {
+      return;
+    }
+
+    this.colorPopupOpen.set(false);
+    this.modelModalOpen.set(true);
+
+    if (this.modelFile() || this.modelLoading()) {
+      return;
+    }
+
+    this.loadModelPreview(model.url, model.originalFilename);
+  }
+
+  closeModelModal(): void {
+    this.modelModalOpen.set(false);
+  }
+
+  shopRootLink(): string[] {
+    return this.shopRouteService.shopRootCommands();
+  }
+
+  categoryLink(slug: string | null | undefined): string[] {
+    return this.shopRouteService.shopRootCommands(slug);
   }
 
   productLinkRoot(): string[] {
     const categorySlug = this.product()?.category.slug || this.categorySlug();
-    return categorySlug ? ['/shop', categorySlug] : ['/shop'];
+    return this.shopRouteService.shopRootCommands(categorySlug);
+  }
+
+  goBackToShop(): void {
+    const returnUrl =
+      this.isBrowser && typeof history.state?.shopReturnUrl === 'string'
+        ? history.state.shopReturnUrl
+        : null;
+
+    if (returnUrl && this.shopRouteService.isCatalogUrl(returnUrl)) {
+      void this.router.navigateByUrl(returnUrl);
+      return;
+    }
+
+    void this.router.navigate(this.productLinkRoot());
   }
 
   private loadModelPreview(urlOrPath: string, filename: string): void {
@@ -289,11 +479,40 @@ export class ProductDetailComponent {
       });
   }
 
+  private normalizeHexColor(value: string | null | undefined): string | null {
+    const raw = String(value ?? '').trim();
+    if (!raw) {
+      return null;
+    }
+
+    const withHash = raw.startsWith('#') ? raw : `#${raw}`;
+    if (!ProductDetailComponent.HEX_COLOR_PATTERN.test(withHash)) {
+      return null;
+    }
+
+    return withHash.toUpperCase();
+  }
+
+  private colorHexFromName(value: string | null | undefined): string | null {
+    const colorName = String(value ?? '').trim();
+    if (!colorName) {
+      return null;
+    }
+
+    const fallback = getColorHex(colorName);
+    if (!fallback || fallback === '#facf0a') {
+      return null;
+    }
+
+    return fallback;
+  }
+
   private applySeo(product: ShopProductDetail): void {
     const title = product.seoTitle || `${product.name} | 3D fab`;
     const description =
       product.seoDescription ||
       product.excerpt ||
+      this.extractTextFromRichContent(product.description) ||
       this.translate.instant('SHOP.CATALOG_META_DESCRIPTION');
     const robots =
       product.indexable === false ? 'noindex, nofollow' : 'index, follow';
@@ -318,4 +537,209 @@ export class ProductDetailComponent {
       ogDescription: description,
     });
   }
+
+  private materialLabelForVariant(
+    variant: ShopProductVariantOption | null,
+  ): string {
+    return String(variant?.variantLabel || '').trim() || 'Standard';
+  }
+
+  descriptionPlainText(description: string | null | undefined): string {
+    return this.extractTextFromRichContent(description) ?? '';
+  }
+
+  descriptionRichHtml(description: string | null | undefined): string {
+    const normalized = String(description ?? '').trim();
+    if (!normalized) {
+      return '';
+    }
+    if (this.containsHtmlMarkup(normalized)) {
+      return normalized;
+    }
+    return normalized
+      .replace(/\r\n?/g, '\n')
+      .split(/\n{2,}/)
+      .map(
+        (paragraph) =>
+          `<p>${this.escapeHtml(paragraph).replace(/\n/g, '<br>')}</p>`,
+      )
+      .join('');
+  }
+
+  private materialKeyForVariant(
+    variant: ShopProductVariantOption | null,
+  ): string | null {
+    if (!variant) {
+      return null;
+    }
+    return this.materialLabelForVariant(variant).toLowerCase();
+  }
+
+  private materialPropertiesFor(
+    materialLabel: string | null | undefined,
+  ): ShopMaterialProperty[] {
+    const normalized = String(materialLabel ?? '')
+      .trim()
+      .toUpperCase();
+
+    if (normalized.includes('ASA')) {
+      return [
+        {
+          labelKey: 'SHOP.PROPERTY_UV',
+          valueKey: 'SHOP.PROPERTY_HIGH',
+          tone: 'strong',
+        },
+        {
+          labelKey: 'SHOP.PROPERTY_WEATHER',
+          valueKey: 'SHOP.PROPERTY_HIGH',
+          tone: 'strong',
+        },
+        {
+          labelKey: 'SHOP.PROPERTY_RIGIDITY',
+          valueKey: 'SHOP.PROPERTY_RIGID',
+          tone: 'neutral',
+        },
+      ];
+    }
+
+    if (normalized.includes('PETG') || normalized.includes('PC')) {
+      return [
+        {
+          labelKey: 'SHOP.PROPERTY_UV',
+          valueKey: 'SHOP.PROPERTY_MEDIUM',
+          tone: 'neutral',
+        },
+        {
+          labelKey: 'SHOP.PROPERTY_WEATHER',
+          valueKey: 'SHOP.PROPERTY_HIGH',
+          tone: 'strong',
+        },
+        {
+          labelKey: 'SHOP.PROPERTY_RIGIDITY',
+          valueKey: normalized.includes('PC')
+            ? 'SHOP.PROPERTY_HIGH'
+            : 'SHOP.PROPERTY_RIGID',
+          tone: 'neutral',
+        },
+      ];
+    }
+
+    if (normalized.includes('TPU')) {
+      return [
+        {
+          labelKey: 'SHOP.PROPERTY_UV',
+          valueKey: 'SHOP.PROPERTY_MEDIUM',
+          tone: 'neutral',
+        },
+        {
+          labelKey: 'SHOP.PROPERTY_WEATHER',
+          valueKey: 'SHOP.PROPERTY_MEDIUM',
+          tone: 'soft',
+        },
+        {
+          labelKey: 'SHOP.PROPERTY_RIGIDITY',
+          valueKey: 'SHOP.PROPERTY_FLEXIBLE',
+          tone: 'soft',
+        },
+      ];
+    }
+
+    return [
+      {
+        labelKey: 'SHOP.PROPERTY_UV',
+        valueKey: 'SHOP.PROPERTY_LOW',
+        tone: 'soft',
+      },
+      {
+        labelKey: 'SHOP.PROPERTY_WEATHER',
+        valueKey: 'SHOP.PROPERTY_LOW',
+        tone: 'soft',
+      },
+      {
+        labelKey: 'SHOP.PROPERTY_RIGIDITY',
+        valueKey: 'SHOP.PROPERTY_RIGID',
+        tone: 'neutral',
+      },
+    ];
+  }
+
+  private extractTextFromRichContent(
+    value: string | null | undefined,
+  ): string | null {
+    const normalized = String(value ?? '').trim();
+    if (!normalized) {
+      return null;
+    }
+    if (!this.containsHtmlMarkup(normalized)) {
+      return normalized;
+    }
+
+    if (!this.isBrowser) {
+      const text = normalized
+        .replace(/<[^>]+>/g, ' ')
+        .replace(/\s+/g, ' ')
+        .trim();
+      return text || null;
+    }
+
+    const parser = new DOMParser();
+    const parsed = parser.parseFromString(
+      `<body>${normalized}</body>`,
+      'text/html',
+    );
+    const text = (parsed.body.textContent ?? '').replace(/\u00a0/g, ' ').trim();
+    return text || null;
+  }
+
+  private containsHtmlMarkup(value: string): boolean {
+    return /<\/?[a-z][\s\S]*>/i.test(value);
+  }
+
+  private escapeHtml(value: string): string {
+    return value
+      .replace(/&/g, '&amp;')
+      .replace(/</g, '&lt;')
+      .replace(/>/g, '&gt;')
+      .replace(/"/g, '&quot;')
+      .replace(/'/g, '&#39;');
+  }
+
+  private syncPublicUrl(product: ShopProductDetail): void {
+    if (!this.isBrowser) {
+      return;
+    }
+
+    const currentProductSlug = this.productSlug()?.trim().toLowerCase() ?? '';
+    const targetProductSlug = this.shopRouteService.productPathSegment(product);
+    if (currentProductSlug === targetProductSlug) {
+      return;
+    }
+
+    const currentTree = this.router.parseUrl(this.router.url);
+    const targetTree = this.router.createUrlTree(
+      [
+        '/',
+        this.languageService.selectedLang(),
+        'shop',
+        'p',
+        targetProductSlug,
+      ],
+      {
+        queryParams: currentTree.queryParams,
+        fragment: currentTree.fragment ?? undefined,
+      },
+    );
+
+    if (
+      this.router.serializeUrl(targetTree) ===
+      this.router.serializeUrl(currentTree)
+    ) {
+      return;
+    }
+
+    void this.router.navigateByUrl(targetTree, {
+      replaceUrl: true,
+      state: history.state,
+    });
+  }
 }

frontend/src/app/features/shop/services/shop-route.service.ts

@@ -0,0 +1,107 @@
+import { Injectable } from '@angular/core';
+import { LanguageService } from '../../../core/services/language.service';
+
+export interface ShopProductRouteRef {
+  id: string | null | undefined;
+  name: string | null | undefined;
+  slug?: string | null | undefined;
+}
+
+export interface ShopProductLookup {
+  idPrefix: string | null;
+  slugHint: string | null;
+}
+
+@Injectable({
+  providedIn: 'root',
+})
+export class ShopRouteService {
+  constructor(private readonly languageService: LanguageService) {}
+
+  shopRootCommands(categorySlug?: string | null): string[] {
+    const lang = this.languageService.currentLang();
+    return categorySlug
+      ? ['/', lang, 'shop', categorySlug]
+      : ['/', lang, 'shop'];
+  }
+
+  productCommands(product: ShopProductRouteRef): string[] {
+    const lang = this.languageService.currentLang();
+    return ['/', lang, 'shop', 'p', this.productPathSegment(product)];
+  }
+
+  productPathSegment(product: ShopProductRouteRef): string {
+    const idPrefix = this.productIdPrefix(product.id);
+    const tail =
+      this.slugify(product.name) || this.slugify(product.slug) || 'product';
+
+    return idPrefix ? `${idPrefix}-${tail}` : tail;
+  }
+
+  resolveProductLookup(
+    productPathSegment: string | null | undefined,
+  ): ShopProductLookup {
+    const normalized = String(productPathSegment ?? '')
+      .trim()
+      .toLowerCase();
+    if (!normalized) {
+      return {
+        idPrefix: null,
+        slugHint: null,
+      };
+    }
+
+    const bareUuidMatch = normalized.match(/^([0-9a-f]{8})$/);
+    if (bareUuidMatch) {
+      return {
+        idPrefix: bareUuidMatch[1],
+        slugHint: null,
+      };
+    }
+
+    const publicSlugMatch = normalized.match(/^([0-9a-f]{8})-(.+)$/);
+    if (publicSlugMatch) {
+      return {
+        idPrefix: publicSlugMatch[1],
+        slugHint: this.slugify(publicSlugMatch[2]) || null,
+      };
+    }
+
+    return {
+      idPrefix: null,
+      slugHint: normalized,
+    };
+  }
+
+  isCatalogUrl(url: string | null | undefined): boolean {
+    if (!url) {
+      return false;
+    }
+
+    const normalized = url.split(/[?#]/, 1)[0] || '';
+    return /^\/(?:[a-z]{2}\/)?shop(?:\/[^/]+)?$/i.test(normalized);
+  }
+
+  slugify(value: string | null | undefined): string {
+    return String(value ?? '')
+      .normalize('NFD')
+      .replace(/[\u0300-\u036f]/g, '')
+      .toLowerCase()
+      .replace(/[^a-z0-9]+/g, '-')
+      .replace(/^-+|-+$/g, '')
+      .replace(/-{2,}/g, '-');
+  }
+
+  private productIdPrefix(productId: string | null | undefined): string {
+    const normalized = String(productId ?? '')
+      .trim()
+      .toLowerCase();
+    const canonicalUuidMatch = normalized.match(/^([0-9a-f]{8})-/);
+    if (canonicalUuidMatch) {
+      return canonicalUuidMatch[1];
+    }
+
+    const compactUuidMatch = normalized.match(/^([0-9a-f]{8})/);
+    return compactUuidMatch?.[1] ?? '';
+  }
+}

frontend/src/app/features/shop/services/shop.service.spec.ts

@@ -3,7 +3,12 @@ import {
   HttpClientTestingModule,
   HttpTestingController,
 } from '@angular/common/http/testing';
-import { ShopCartResponse, ShopService } from './shop.service';
+import {
+  ShopCartResponse,
+  ShopProductCatalogResponse,
+  ShopProductDetail,
+  ShopService,
+} from './shop.service';
 import { LanguageService } from '../../../core/services/language.service';
 
 describe('ShopService', () => {
@@ -85,6 +90,60 @@ describe('ShopService', () => {
     grandTotalChf: 36.8,
   });
 
+  const buildCatalog = (): ShopProductCatalogResponse => ({
+    categorySlug: null,
+    featuredOnly: false,
+    category: null,
+    products: [
+      {
+        id: '12345678-abcd-4abc-9abc-1234567890ab',
+        slug: 'desk-cable-clip',
+        name: 'Supporto cavo scrivania',
+        excerpt: 'Accessorio tecnico',
+        isFeatured: true,
+        sortOrder: 0,
+        category: {
+          id: 'category-1',
+          slug: 'accessori',
+          name: 'Accessori',
+        },
+        priceFromChf: 9.9,
+        priceToChf: 12.5,
+        defaultVariant: null,
+        primaryImage: null,
+        model3d: null,
+      },
+    ],
+  });
+
+  const buildProduct = (): ShopProductDetail => ({
+    id: '12345678-abcd-4abc-9abc-1234567890ab',
+    slug: 'desk-cable-clip',
+    name: 'Supporto cavo scrivania',
+    excerpt: 'Accessorio tecnico',
+    description: 'Descrizione prodotto',
+    seoTitle: null,
+    seoDescription: null,
+    ogTitle: null,
+    ogDescription: null,
+    indexable: true,
+    isFeatured: true,
+    sortOrder: 0,
+    category: {
+      id: 'category-1',
+      slug: 'accessori',
+      name: 'Accessori',
+    },
+    breadcrumbs: [],
+    priceFromChf: 9.9,
+    priceToChf: 12.5,
+    defaultVariant: null,
+    variants: [],
+    primaryImage: null,
+    images: [],
+    model3d: null,
+  });
+
   beforeEach(() => {
     TestBed.configureTestingModule({
       imports: [HttpClientTestingModule],
@@ -143,4 +202,96 @@ describe('ShopService', () => {
     expect(service.cart()?.session?.id).toBe('session-1');
     expect(service.cartItemCount()).toBe(3);
   });
+
+  it('resolves product detail from the public product slug', () => {
+    let response: ShopProductDetail | undefined;
+
+    service
+      .getProductByPublicPath('12345678-supporto-cavo-scrivania')
+      .subscribe((product) => {
+        response = product;
+      });
+
+    const catalogRequest = httpMock.expectOne((request) => {
+      return (
+        request.method === 'GET' &&
+        request.url === 'http://localhost:8000/api/shop/products' &&
+        request.params.get('lang') === 'it'
+      );
+    });
+    catalogRequest.flush(buildCatalog());
+
+    const detailRequest = httpMock.expectOne((request) => {
+      return (
+        request.method === 'GET' &&
+        request.url ===
+          'http://localhost:8000/api/shop/products/desk-cable-clip' &&
+        request.params.get('lang') === 'it'
+      );
+    });
+    detailRequest.flush(buildProduct());
+
+    expect(response?.id).toBe('12345678-abcd-4abc-9abc-1234567890ab');
+    expect(response?.name).toBe('Supporto cavo scrivania');
+  });
+
+  it('resolves product detail from uuid prefix even when slug tail does not match', () => {
+    let response: ShopProductDetail | undefined;
+
+    service
+      .getProductByPublicPath('12345678-qualunque-nome')
+      .subscribe((product) => {
+        response = product;
+      });
+
+    const catalogRequest = httpMock.expectOne((request) => {
+      return (
+        request.method === 'GET' &&
+        request.url === 'http://localhost:8000/api/shop/products' &&
+        request.params.get('lang') === 'it'
+      );
+    });
+    catalogRequest.flush(buildCatalog());
+
+    const detailRequest = httpMock.expectOne((request) => {
+      return (
+        request.method === 'GET' &&
+        request.url ===
+          'http://localhost:8000/api/shop/products/desk-cable-clip' &&
+        request.params.get('lang') === 'it'
+      );
+    });
+    detailRequest.flush(buildProduct());
+
+    expect(response?.id).toBe('12345678-abcd-4abc-9abc-1234567890ab');
+  });
+
+  it('resolves product detail from bare uuid prefix without slug tail', () => {
+    let response: ShopProductDetail | undefined;
+
+    service.getProductByPublicPath('12345678').subscribe((product) => {
+      response = product;
+    });
+
+    const catalogRequest = httpMock.expectOne((request) => {
+      return (
+        request.method === 'GET' &&
+        request.url === 'http://localhost:8000/api/shop/products' &&
+        request.params.get('lang') === 'it'
+      );
+    });
+    catalogRequest.flush(buildCatalog());
+
+    const detailRequest = httpMock.expectOne((request) => {
+      return (
+        request.method === 'GET' &&
+        request.url ===
+          'http://localhost:8000/api/shop/products/desk-cable-clip' &&
+        request.params.get('lang') === 'it'
+      );
+    });
+    detailRequest.flush(buildProduct());
+
+    expect(response?.id).toBe('12345678-abcd-4abc-9abc-1234567890ab');
+  });
 });

frontend/src/app/features/shop/services/shop.service.ts

@@ -1,12 +1,13 @@
 import { computed, inject, Injectable, signal } from '@angular/core';
 import { HttpClient, HttpParams } from '@angular/common/http';
-import { map, Observable, tap } from 'rxjs';
+import { map, Observable, switchMap, tap, throwError } from 'rxjs';
 import { environment } from '../../../../environments/environment';
 import {
   PublicMediaUsageDto,
   PublicMediaVariantDto,
 } from '../../../core/services/public-media.service';
 import { LanguageService } from '../../../core/services/language.service';
+import { ShopRouteService } from './shop-route.service';
 
 export interface ShopCategoryRef {
   id: string;
@@ -179,6 +180,7 @@ export interface ShopCategoryNavNode {
 export class ShopService {
   private readonly http = inject(HttpClient);
   private readonly languageService = inject(LanguageService);
+  private readonly shopRouteService = inject(ShopRouteService);
   private readonly apiUrl = `${environment.apiUrl}/api/shop`;
 
   readonly cart = signal<ShopCartResponse | null>(null);
@@ -268,6 +270,32 @@ export class ShopService {
     );
   }
 
+  getProductByPublicPath(
+    productPathSegment: string,
+  ): Observable<ShopProductDetail> {
+    const lookup =
+      this.shopRouteService.resolveProductLookup(productPathSegment);
+    if (!lookup.idPrefix && lookup.slugHint) {
+      return this.getProduct(lookup.slugHint);
+    }
+
+    return this.getProductCatalog().pipe(
+      map((catalog) =>
+        catalog.products.find((product) =>
+          product.id.toLowerCase().startsWith(lookup.idPrefix ?? ''),
+        ),
+      ),
+      switchMap((product) => {
+        if (!product) {
+          return throwError(() => ({
+            status: 404,
+          }));
+        }
+        return this.getProduct(product.slug);
+      }),
+    );
+  }
+
   loadCart(): Observable<ShopCartResponse> {
     this.cartLoading.set(true);
     return this.http

frontend/src/app/features/shop/shop-page.component.html

@@ -7,19 +7,14 @@
           ? selectedCategory()?.description ||
             ("SHOP.CATEGORY_META"
               | translate: { count: selectedCategory()?.productCount || 0 })
-          : ("SHOP.CUSTOM_PART_CTA" | translate)
+          : ("SHOP.SUBTITLE" | translate)
       }}
     </p>
-    <div class="ui-simple-hero__actions hero-actions ui-inline-actions">
-      <app-button variant="outline" routerLink="/contact">
-        {{ "NAV.CONTACT" | translate }}
-      </app-button>
-    </div>
   </div>
 
   <div class="container shop-layout">
     <aside class="shop-sidebar">
-      <app-card>
+      <app-card class="category-card">
         <div class="panel-head">
           <div>
             <p class="panel-kicker">
@@ -37,7 +32,9 @@
           [class.active]="!currentCategorySlug()"
           (click)="navigateToCategory()"
         >
-          <span>{{ "SHOP.ALL_CATEGORIES" | translate }}</span>
+          <span class="category-name">{{
+            "SHOP.ALL_CATEGORIES" | translate
+          }}</span>
         </button>
 
         <div class="category-list">
@@ -49,8 +46,8 @@
               [style.--depth]="node.depth"
               (click)="navigateToCategory(node.slug)"
             >
-              <span>{{ node.name }}</span>
-              <small>{{ node.productCount }}</small>
+              <span class="category-name">{{ node.name }}</span>
+              <small class="category-count">{{ node.productCount }}</small>
             </button>
           }
         </div>
@@ -227,4 +224,23 @@
       }
     </section>
   </div>
+
+  <section class="container shop-custom-cta">
+    <app-card class="shop-custom-cta-card">
+      <div class="shop-custom-cta-inner">
+        <div class="shop-custom-cta-copy">
+          <p class="panel-kicker">
+            {{ "SHOP.CUSTOM_PART_FOOTER_TITLE" | translate }}
+          </p>
+          <h2 class="shop-custom-cta-title">
+            {{ "SHOP.CUSTOM_PART_FOOTER_TEXT" | translate }}
+          </h2>
+        </div>
+
+        <app-button variant="primary" routerLink="/contact">
+          {{ "NAV.CONTACT" | translate }}
+        </app-button>
+      </div>
+    </app-card>
+  </section>
 </section>

frontend/src/app/features/shop/shop-page.component.scss

@@ -7,16 +7,12 @@
   line-height: 1.5;
 }
 
-.hero-actions {
-  gap: var(--space-3);
-}
-
 .shop-layout {
   display: grid;
   gap: var(--space-8);
   align-items: start;
   grid-template-columns: minmax(270px, 320px) minmax(0, 1fr);
-  padding-bottom: var(--space-12);
+  padding-bottom: var(--space-8);
   padding-top: var(--space-6);
 }
 
@@ -48,40 +44,70 @@
   font-size: 1.1rem;
 }
 
+.category-card {
+  display: block;
+}
+
 .category-list {
   display: grid;
-  gap: 0.4rem;
+  gap: 0.45rem;
+  margin-top: var(--space-2);
 }
 
 .category-link {
   --depth: 0;
+  position: relative;
   display: flex;
-  width: 100%;
+  width: calc(100% - (var(--depth) * 0.7rem));
+  margin-left: calc(var(--depth) * 0.7rem);
   align-items: center;
   justify-content: space-between;
-  gap: var(--space-3);
-  padding: 0.8rem 0.95rem 0.8rem calc(0.95rem + (var(--depth) * 0.95rem));
-  border: 1px solid transparent;
-  border-radius: 0.9rem;
-  background: transparent;
+  gap: var(--space-2);
+  min-height: 2.8rem;
+  padding: 0.55rem 0.75rem;
+  border: 1px solid rgba(16, 24, 32, 0.1);
+  border-radius: 0.8rem;
+  background: #fff;
   color: var(--color-text);
   text-align: left;
   cursor: pointer;
   transition:
-    background-color 0.18s ease,
-    border-color 0.18s ease,
-    transform 0.18s ease;
+    background-color 0.16s ease,
+    border-color 0.16s ease,
+    box-shadow 0.16s ease;
+}
+
+.category-link:hover {
+  background: rgba(16, 24, 32, 0.03);
+  border-color: rgba(16, 24, 32, 0.14);
 }
 
-.category-link:hover,
 .category-link.active {
-  background: rgba(250, 207, 10, 0.12);
-  border-color: rgba(16, 24, 32, 0.12);
-  transform: translateX(1px);
+  background: color-mix(in srgb, var(--color-brand) 14%, #fff);
+  border-color: color-mix(in srgb, var(--color-brand) 42%, #d6dbe4);
+  box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--color-brand) 35%, #fff);
 }
 
-.category-link small {
+.category-name {
+  min-width: 0;
+  overflow: hidden;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+  font-size: 0.97rem;
+  font-weight: 500;
+}
+
+.category-count {
+  display: inline-flex;
+  min-width: 1.6rem;
+  height: 1.6rem;
+  align-items: center;
+  justify-content: center;
+  border-radius: 999px;
+  background: rgba(16, 24, 32, 0.06);
   color: var(--color-text-muted);
+  font-size: 0.8rem;
+  font-weight: 600;
 }
 
 .cart-card {
@@ -226,6 +252,32 @@
   gap: var(--space-5);
 }
 
+.shop-custom-cta {
+  padding-bottom: var(--space-12);
+}
+
+.shop-custom-cta-card {
+  display: block;
+}
+
+.shop-custom-cta-inner {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  gap: var(--space-5);
+}
+
+.shop-custom-cta-copy {
+  display: grid;
+  gap: var(--space-1);
+}
+
+.shop-custom-cta-title {
+  margin: 0;
+  font-size: clamp(1.15rem, 0.45vw + 1.02rem, 1.45rem);
+  line-height: 1.25;
+}
+
 .section-title {
   margin: 0;
   font-size: clamp(1.5rem, 1vw + 1.2rem, 2rem);
@@ -284,6 +336,11 @@
     grid-template-columns: 1fr;
   }
 
+  .shop-custom-cta-inner {
+    align-items: start;
+    flex-direction: column;
+  }
+
   .catalog-head,
   .cart-line-controls,
   .panel-head {

frontend/src/app/features/shop/shop-page.component.ts

@@ -33,6 +33,7 @@ import {
   ShopProductSummary,
   ShopService,
 } from './services/shop.service';
+import { ShopRouteService } from './services/shop-route.service';
 
 @Component({
   selector: 'app-shop-page',
@@ -55,6 +56,7 @@ export class ShopPageComponent {
   private readonly translate = inject(TranslateService);
   private readonly seoService = inject(SeoService);
   private readonly languageService = inject(LanguageService);
+  private readonly shopRouteService = inject(ShopRouteService);
   readonly shopService = inject(ShopService);
 
   readonly categorySlug = input<string | undefined>();
@@ -167,8 +169,7 @@ export class ShopPageComponent {
   }
 
   navigateToCategory(slug?: string | null): void {
-    const commands = slug ? ['/shop', slug] : ['/shop'];
-    this.router.navigate(commands);
+    this.router.navigate(this.shopRouteService.shopRootCommands(slug));
   }
 
   increaseQuantity(item: ShopCartItem): void {

frontend/src/app/features/shop/shop.routes.ts

@@ -12,6 +12,13 @@ export const SHOP_ROUTES: Routes = [
         'Catalogo prodotti stampati in 3D, accessori tecnici e soluzioni pratiche pronte all uso.',
     },
   },
+  {
+    path: 'p/:productSlug',
+    component: ProductDetailComponent,
+    data: {
+      seoTitle: 'Prodotto | 3D fab',
+    },
+  },
   {
     path: ':categorySlug/:productSlug',
     component: ProductDetailComponent,

frontend/src/app/shared/components/stl-viewer/stl-viewer.component.ts

@@ -5,10 +5,12 @@ import {
   OnChanges,
   OnDestroy,
   OnInit,
+  PLATFORM_ID,
   ViewChild,
   SimpleChanges,
+  inject,
 } from '@angular/core';
-import { CommonModule } from '@angular/common';
+import { CommonModule, isPlatformBrowser } from '@angular/common';
 import { TranslateModule } from '@ngx-translate/core';
 import * as THREE from 'three';
 // @ts-ignore
@@ -24,6 +26,9 @@ import { OrbitControls } from 'three/examples/jsm/controls/OrbitControls.js';
   styleUrl: './stl-viewer.component.scss',
 })
 export class StlViewerComponent implements OnInit, OnDestroy, OnChanges {
+  private readonly platformId = inject(PLATFORM_ID);
+  private readonly isBrowser = isPlatformBrowser(this.platformId);
+
   @Input() file: File | null = null;
   @Input() color: string = '#facf0a'; // Default Brand Color
   @Input() height = 300;
@@ -39,14 +44,22 @@ export class StlViewerComponent implements OnInit, OnDestroy, OnChanges {
   private animationId: number | null = null;
   private currentMesh: THREE.Mesh | null = null;
   private autoRotate = true;
+  private resizeObserver: ResizeObserver | null = null;
 
   loading = false;
 
   ngOnInit() {
+    if (!this.isBrowser) {
+      return;
+    }
     this.initThree();
   }
 
   ngOnChanges(changes: SimpleChanges) {
+    if (!this.isBrowser) {
+      return;
+    }
+
     if (changes['file'] && this.file) {
       this.loadFile(this.file);
     }
@@ -57,6 +70,9 @@ export class StlViewerComponent implements OnInit, OnDestroy, OnChanges {
   }
 
   ngOnDestroy() {
+    this.resizeObserver?.disconnect();
+    this.resizeObserver = null;
+
     if (this.animationId) cancelAnimationFrame(this.animationId);
     this.clearCurrentMesh();
     if (this.controls) this.controls.dispose();
@@ -121,7 +137,7 @@ export class StlViewerComponent implements OnInit, OnDestroy, OnChanges {
     this.animate();
 
     // Handle resize
-    const resizeObserver = new ResizeObserver(() => {
+    this.resizeObserver = new ResizeObserver(() => {
       if (!this.rendererContainer) return;
       const w = this.rendererContainer.nativeElement.clientWidth;
       const h = this.rendererContainer.nativeElement.clientHeight;
@@ -129,7 +145,7 @@ export class StlViewerComponent implements OnInit, OnDestroy, OnChanges {
       this.camera.updateProjectionMatrix();
       this.renderer.setSize(w, h);
     });
-    resizeObserver.observe(this.rendererContainer.nativeElement);
+    this.resizeObserver.observe(this.rendererContainer.nativeElement);
   }
 
   dimensions = { x: 0, y: 0, z: 0 };

frontend/src/app/shared/directives/copy-on-click.directive.ts

@@ -1,10 +1,20 @@
-import { Directive, HostBinding, HostListener, Input } from '@angular/core';
+import { isPlatformBrowser } from '@angular/common';
+import {
+  Directive,
+  HostBinding,
+  HostListener,
+  Input,
+  PLATFORM_ID,
+  inject,
+} from '@angular/core';
 
 @Directive({
   selector: '[appCopyOnClick]',
   standalone: true,
 })
 export class CopyOnClickDirective {
+  private readonly isBrowser = isPlatformBrowser(inject(PLATFORM_ID));
+
   @Input('appCopyOnClick') value: string | null | undefined;
 
   @HostBinding('style.cursor') readonly cursor = 'pointer';
@@ -21,6 +31,10 @@ export class CopyOnClickDirective {
   }
 
   private async copy(text: string): Promise<void> {
+    if (!this.isBrowser) {
+      return;
+    }
+
     if (navigator.clipboard?.writeText) {
       try {
         await navigator.clipboard.writeText(text);

frontend/src/assets/i18n/de.json

@@ -104,7 +104,10 @@
     "WIP_CTA_CALC": "Zum Rechner",
     "WIP_RETURN_LATER": "Kommen Sie später wieder",
     "WIP_NOTE": "Wir legen Wert darauf, die Dinge richtig zu machen: In der Zwischenzeit können Sie Preis und Lieferzeit einer 3D-Datei sofort mit unserem Rechner berechnen.",
+    "CUSTOM_PART_FOOTER_TITLE": "Nicht das gefunden, was Sie suchen?",
+    "CUSTOM_PART_FOOTER_TEXT": "Kontaktieren Sie uns für individuelle Teile.",
     "ADD_CART": "In den Warenkorb",
+    "ADDING": "Wird hinzugefügt",
     "BACK": "Zurück zum Shop",
     "NOT_FOUND": "Produkt nicht gefunden.",
     "DETAILS": "Details",
@@ -112,6 +115,21 @@
     "SUCCESS_TITLE": "Zum Warenkorb hinzugefügt",
     "SUCCESS_DESC": "Das Produkt wurde erfolgreich zum Warenkorb hinzugefügt.",
     "CONTINUE": "Weiter",
+    "MODEL_OPEN": "3D-Ansicht öffnen",
+    "MODEL_CLOSE": "3D-Ansicht schließen",
+    "PREVIOUS_IMAGE": "Vorheriges Bild",
+    "NEXT_IMAGE": "Nächstes Bild",
+    "SELECT_MATERIAL": "Material",
+    "SELECT_COLOR": "Farbe",
+    "MATERIAL_COLOR_COUNT": "{{count}} Farben verfügbar",
+    "PROPERTY_UV": "UV-Beständigkeit",
+    "PROPERTY_WEATHER": "Außeneinsatz",
+    "PROPERTY_RIGIDITY": "Steifigkeit",
+    "PROPERTY_HIGH": "Hoch",
+    "PROPERTY_MEDIUM": "Mittel",
+    "PROPERTY_LOW": "Niedrig",
+    "PROPERTY_RIGID": "Steif",
+    "PROPERTY_FLEXIBLE": "Flexibel",
     "CATEGORIES": {
       "FILAMENTS": "Filamente",
       "ACCESSORIES": "Zubehör"

frontend/src/assets/i18n/en.json

@@ -104,7 +104,10 @@
     "WIP_CTA_CALC": "Check our calculator",
     "WIP_RETURN_LATER": "Come back soon",
     "WIP_NOTE": "We care about doing this right. In the meantime, you can get instant pricing and lead time from our calculator.",
+    "CUSTOM_PART_FOOTER_TITLE": "Can't find what you're looking for?",
+    "CUSTOM_PART_FOOTER_TEXT": "Contact us for custom parts.",
     "ADD_CART": "Add to Cart",
+    "ADDING": "Adding to cart",
     "BACK": "Back to Shop",
     "NOT_FOUND": "Product not found.",
     "DETAILS": "Details",
@@ -112,6 +115,21 @@
     "SUCCESS_TITLE": "Added to cart",
     "SUCCESS_DESC": "The product has been added to the cart.",
     "CONTINUE": "Continue",
+    "MODEL_OPEN": "Open 3D view",
+    "MODEL_CLOSE": "Close 3D view",
+    "PREVIOUS_IMAGE": "Previous image",
+    "NEXT_IMAGE": "Next image",
+    "SELECT_MATERIAL": "Material",
+    "SELECT_COLOR": "Color",
+    "MATERIAL_COLOR_COUNT": "{{count}} colors available",
+    "PROPERTY_UV": "UV resistance",
+    "PROPERTY_WEATHER": "Outdoor use",
+    "PROPERTY_RIGIDITY": "Rigidity",
+    "PROPERTY_HIGH": "High",
+    "PROPERTY_MEDIUM": "Medium",
+    "PROPERTY_LOW": "Low",
+    "PROPERTY_RIGID": "Rigid",
+    "PROPERTY_FLEXIBLE": "Flexible",
     "CATEGORIES": {
       "FILAMENTS": "Filaments",
       "ACCESSORIES": "Accessories"

frontend/src/assets/i18n/fr.json

@@ -161,7 +161,10 @@
     "WIP_CTA_CALC": "Aller au calculateur",
     "WIP_RETURN_LATER": "Revenez dans un moment",
     "WIP_NOTE": "Nous tenons à bien faire les choses : en attendant, vous pouvez calculer immédiatement prix et délais d'un fichier 3D avec notre calculateur.",
+    "CUSTOM_PART_FOOTER_TITLE": "Vous ne trouvez pas ce que vous cherchez ?",
+    "CUSTOM_PART_FOOTER_TEXT": "Contactez-nous pour des pièces personnalisées.",
     "ADD_CART": "Ajouter au panier",
+    "ADDING": "Ajout en cours",
     "BACK": "Retour à la boutique",
     "NOT_FOUND": "Produit introuvable.",
     "DETAILS": "Détails",
@@ -169,6 +172,21 @@
     "SUCCESS_TITLE": "Ajouté au panier",
     "SUCCESS_DESC": "Le produit a été ajouté au panier avec succès.",
     "CONTINUE": "Continuer",
+    "MODEL_OPEN": "Ouvrir la vue 3D",
+    "MODEL_CLOSE": "Fermer la vue 3D",
+    "PREVIOUS_IMAGE": "Image précédente",
+    "NEXT_IMAGE": "Image suivante",
+    "SELECT_MATERIAL": "Matériau",
+    "SELECT_COLOR": "Couleur",
+    "MATERIAL_COLOR_COUNT": "{{count}} couleurs disponibles",
+    "PROPERTY_UV": "Résistance UV",
+    "PROPERTY_WEATHER": "Usage extérieur",
+    "PROPERTY_RIGIDITY": "Rigidité",
+    "PROPERTY_HIGH": "Élevée",
+    "PROPERTY_MEDIUM": "Moyenne",
+    "PROPERTY_LOW": "Faible",
+    "PROPERTY_RIGID": "Rigide",
+    "PROPERTY_FLEXIBLE": "Flexible",
     "CATEGORIES": {
       "FILAMENTS": "Filaments",
       "ACCESSORIES": "Accessoires"

frontend/src/assets/i18n/it.json

@@ -178,6 +178,8 @@
     "CATALOG_TITLE": "Tutti i prodotti",
     "CATALOG_META_DESCRIPTION": "Scopri prodotti stampati in 3D, accessori tecnici e soluzioni pronte all uso con lo stesso checkout del calcolatore.",
     "CUSTOM_PART_CTA": "Non trovi quello che cerchi? Richiedi un pezzo personalizzato.",
+    "CUSTOM_PART_FOOTER_TITLE": "Non trovi quello che cerchi?",
+    "CUSTOM_PART_FOOTER_TEXT": "Contattaci per pezzi personalizzati.",
     "CATEGORY_META": "{{count}} prodotti disponibili in questa categoria",
     "CATEGORY_PANEL_KICKER": "Navigazione",
     "CATEGORY_PANEL_TITLE": "Categorie",
@@ -194,11 +196,25 @@
     "EXCERPT_FALLBACK": "Scheda prodotto in preparazione.",
     "MODEL_3D": "3D preview",
     "MODEL_TITLE": "Anteprima del modello",
+    "MODEL_OPEN": "Apri vista 3D",
+    "MODEL_CLOSE": "Chiudi vista 3D",
     "MODEL_LOADING": "Stiamo caricando il modello 3D.",
     "MODEL_UNAVAILABLE": "Preview 3D non disponibile.",
+    "PREVIOUS_IMAGE": "Immagine precedente",
+    "NEXT_IMAGE": "Immagine successiva",
     "BREADCRUMB_ROOT": "Shop",
+    "SELECT_MATERIAL": "Materiale",
     "SELECT_COLOR": "Colore",
+    "MATERIAL_COLOR_COUNT": "{{count}} colori disponibili",
     "VARIANT": "Variante",
+    "PROPERTY_UV": "Resistenza UV",
+    "PROPERTY_WEATHER": "Uso esterno",
+    "PROPERTY_RIGIDITY": "Rigidità",
+    "PROPERTY_HIGH": "Alta",
+    "PROPERTY_MEDIUM": "Media",
+    "PROPERTY_LOW": "Bassa",
+    "PROPERTY_RIGID": "Rigido",
+    "PROPERTY_FLEXIBLE": "Flessibile",
     "QUANTITY": "Quantità",
     "GO_TO_CHECKOUT": "Vai al checkout",
     "IN_CART_SHORT": "Nel carrello x{{count}}",

frontend/src/index.html

@@ -19,6 +19,7 @@
       href="https://fonts.googleapis.com/icon?family=Material+Icons"
       rel="stylesheet"
     />
+    <meta name="msvalidate.01" content="5AF60C1471E1800B39DF4DBC3C709035" />
   </head>
   <body>
     <app-root></app-root>

frontend/src/main.server.ts

@@ -0,0 +1,11 @@
+import {
+  BootstrapContext,
+  bootstrapApplication,
+} from '@angular/platform-browser';
+import { AppComponent } from './app/app.component';
+import { config } from './app/app.config.server';
+
+const bootstrap = (context: BootstrapContext) =>
+  bootstrapApplication(AppComponent, config, context);
+
+export default bootstrap;

frontend/src/server.ts

@@ -0,0 +1,67 @@
+import { APP_BASE_HREF } from '@angular/common';
+import { CommonEngine, isMainModule } from '@angular/ssr/node';
+import express from 'express';
+import { dirname, join, resolve } from 'node:path';
+import { fileURLToPath } from 'node:url';
+import bootstrap from './main.server';
+
+const serverDistFolder = dirname(fileURLToPath(import.meta.url));
+const browserDistFolder = resolve(serverDistFolder, '../browser');
+const indexHtml = join(serverDistFolder, 'index.server.html');
+
+const app = express();
+const commonEngine = new CommonEngine();
+
+/**
+ * Example Express Rest API endpoints can be defined here.
+ * Uncomment and define endpoints as necessary.
+ *
+ * Example:
+ * ```ts
+ * app.get('/api/**', (req, res) => {
+ *   // Handle API request
+ * });
+ * ```
+ */
+
+/**
+ * Serve static files from /browser
+ */
+app.get(
+  '**',
+  express.static(browserDistFolder, {
+    maxAge: '1y',
+    index: false,
+  }),
+);
+
+/**
+ * Handle all other requests by rendering the Angular application.
+ */
+app.get('**', (req, res, next) => {
+  const { protocol, originalUrl, baseUrl, headers } = req;
+
+  commonEngine
+    .render({
+      bootstrap,
+      documentFilePath: indexHtml,
+      url: `${protocol}://${headers.host}${originalUrl}`,
+      publicPath: browserDistFolder,
+      providers: [{ provide: APP_BASE_HREF, useValue: baseUrl }],
+    })
+    .then((html) => res.send(html))
+    .catch((err) => next(err));
+});
+
+/**
+ * Start the server if this module is the main entry point.
+ * The server listens on the port defined by the `PORT` environment variable, or defaults to 4000.
+ */
+if (isMainModule(import.meta.url)) {
+  const port = process.env['PORT'] || 4000;
+  app.listen(port, () => {
+    console.log(`Node Express server listening on http://localhost:${port}`);
+  });
+}
+
+export default app;

frontend/src/styles.scss

@@ -1,6 +1,7 @@
 /* src/styles.scss */
 @use "./styles/theme";
 @use "./styles/patterns";
+@use "./styles/shop-product-detail-overrides";
 @use "./styles/ui";
 
 /* Reset / Base */

frontend/src/styles/_shop-product-detail-overrides.scss

@@ -0,0 +1,298 @@
+app-product-detail {
+  .hero-nav {
+    position: absolute;
+    top: 50%;
+    transform: translateY(-50%);
+    z-index: 2;
+    width: 2.2rem;
+    height: 2.2rem;
+    border-radius: 999px;
+    border: 1px solid rgba(16, 24, 32, 0.14);
+    background: rgba(255, 255, 255, 0.92);
+    color: var(--color-text);
+    font-size: 1.4rem;
+    line-height: 1;
+    display: grid;
+    place-items: center;
+    cursor: pointer;
+  }
+
+  .hero-nav:hover {
+    border-color: rgba(16, 24, 32, 0.28);
+  }
+
+  .hero-nav-prev {
+    left: 0.6rem;
+  }
+
+  .hero-nav-next {
+    right: 0.6rem;
+  }
+
+  .viewer-state {
+    display: grid;
+    place-items: center;
+    min-height: 220px;
+    border-radius: var(--radius-lg);
+    background: rgba(16, 24, 32, 0.04);
+    color: var(--color-text-muted);
+  }
+
+  .viewer-state-error {
+    color: var(--color-danger-600);
+  }
+
+  .viewer-loading {
+    gap: 0.6rem;
+  }
+
+  .spinner {
+    width: 1.5rem;
+    height: 1.5rem;
+    border-radius: 50%;
+    border: 2px solid rgba(16, 24, 32, 0.16);
+    border-top-color: var(--color-secondary-600);
+    animation: shopDetailSpin 0.9s linear infinite;
+  }
+
+  .model-modal-backdrop {
+    position: fixed;
+    inset: 0;
+    z-index: 1100;
+    border: 0;
+    background: rgba(16, 24, 32, 0.36);
+  }
+
+  .model-modal {
+    position: fixed;
+    top: 50%;
+    left: 50%;
+    transform: translate(-50%, -50%);
+    width: min(940px, calc(100vw - 2rem));
+    max-height: calc(100vh - 2rem);
+    display: grid;
+    grid-template-rows: auto 1fr;
+    gap: 0.9rem;
+    z-index: 1101;
+    padding: 1rem;
+    border-radius: 1rem;
+    border: 1px solid rgba(16, 24, 32, 0.16);
+    background: #fff;
+    box-shadow: 0 22px 40px rgba(16, 24, 32, 0.3);
+  }
+
+  .model-modal-head {
+    display: flex;
+    justify-content: space-between;
+    gap: var(--space-3);
+    align-items: start;
+  }
+
+  .model-close-btn {
+    width: 2rem;
+    height: 2rem;
+    border-radius: 999px;
+    border: 1px solid rgba(16, 24, 32, 0.16);
+    background: #fff;
+    cursor: pointer;
+  }
+
+  .model-modal-body {
+    min-height: 260px;
+    max-height: calc(100vh - 11rem);
+    overflow: auto;
+  }
+
+  .color-selector-block {
+    position: relative;
+    display: grid;
+    gap: 0.4rem;
+    padding: 0;
+    border-radius: 1rem;
+    border: 0;
+    background: transparent;
+  }
+
+  .selector-head {
+    display: block;
+  }
+
+  .color-trigger {
+    width: 100%;
+    max-width: 230px;
+    display: flex;
+    align-items: center;
+    gap: 0.75rem;
+    padding: 0.35rem 0.55rem;
+    border-radius: 0.72rem;
+    border: 1px solid rgba(16, 24, 32, 0.14);
+    background: #fff;
+    text-align: left;
+    cursor: pointer;
+    transition:
+      border-color 0.16s ease,
+      box-shadow 0.16s ease;
+  }
+
+  .color-trigger:hover {
+    border-color: rgba(16, 24, 32, 0.28);
+  }
+
+  .color-trigger.open {
+    border-color: rgba(250, 207, 10, 0.95);
+    box-shadow: 0 0 0 2px rgba(250, 207, 10, 0.28);
+  }
+
+  .color-trigger__ring {
+    display: inline-flex;
+    align-items: center;
+    justify-content: center;
+    width: 1.75rem;
+    height: 1.75rem;
+    border-radius: 50%;
+    border: 2px solid rgba(250, 207, 10, 0.95);
+  }
+
+  .color-trigger__swatch {
+    width: 1.22rem;
+    height: 1.22rem;
+    border-radius: 50%;
+    border: 1px solid rgba(16, 24, 32, 0.16);
+  }
+
+  .color-trigger__copy {
+    display: grid;
+    gap: 0.08rem;
+  }
+
+  .color-trigger__copy strong {
+    font-size: 0.88rem;
+  }
+
+  .color-trigger__copy small {
+    font-size: 0.76rem;
+    color: var(--color-text-muted);
+  }
+
+  .color-popup-backdrop {
+    position: fixed;
+    inset: 0;
+    z-index: 999;
+    border: 0;
+    background: transparent;
+  }
+
+  .color-popup {
+    position: absolute;
+    top: calc(100% + 0.45rem);
+    left: 0;
+    z-index: 1000;
+    width: min(340px, 100%);
+    padding: 0.9rem;
+    border-radius: 0.85rem;
+    border: 1px solid rgba(16, 24, 32, 0.12);
+    background: #fff;
+    box-shadow: 0 12px 24px rgba(16, 24, 32, 0.14);
+  }
+
+  .color-popup__category {
+    margin-bottom: 0.75rem;
+    font-size: 0.75rem;
+    font-weight: 700;
+    letter-spacing: 0.08em;
+    color: var(--color-text-muted);
+  }
+
+  .color-popup__grid {
+    display: grid;
+    grid-template-columns: repeat(3, minmax(0, 1fr));
+    gap: 0.75rem 0.55rem;
+  }
+
+  .color-popup__item {
+    display: flex;
+    flex-direction: column;
+    align-items: center;
+    gap: 0.3rem;
+    border: 0;
+    background: transparent;
+    cursor: pointer;
+    text-align: center;
+    color: inherit;
+  }
+
+  .color-popup__ring {
+    display: inline-flex;
+    align-items: center;
+    justify-content: center;
+    width: 2rem;
+    height: 2rem;
+    border-radius: 50%;
+    border: 2px solid transparent;
+    transition: border-color 0.15s ease;
+  }
+
+  .color-popup__ring.active {
+    border-color: rgba(250, 207, 10, 0.95);
+  }
+
+  .color-popup__swatch {
+    width: 1.5rem;
+    height: 1.5rem;
+    border-radius: 50%;
+    border: 1px solid rgba(16, 24, 32, 0.18);
+  }
+
+  .color-popup__name {
+    font-size: 0.8rem;
+    line-height: 1.2;
+    color: var(--color-text);
+  }
+}
+
+@keyframes shopDetailSpin {
+  to {
+    transform: rotate(360deg);
+  }
+}
+
+@media (max-width: 640px) {
+  app-product-detail {
+    .selector-head {
+      display: block;
+    }
+
+    .color-popup {
+      position: fixed;
+      top: 50%;
+      left: 50%;
+      transform: translate(-50%, -50%);
+      width: min(340px, calc(100vw - 1.5rem));
+      max-height: min(72vh, 440px);
+      overflow-y: auto;
+    }
+
+    .color-trigger {
+      max-width: 100%;
+    }
+
+    .model-launch-row {
+      flex-direction: column;
+      align-items: flex-start;
+    }
+
+    .dimensions-inline {
+      flex-wrap: wrap;
+    }
+
+    .model-modal {
+      width: calc(100vw - 1rem);
+      max-height: calc(100vh - 1rem);
+      padding: 0.8rem;
+    }
+
+    .model-modal-body {
+      max-height: calc(100vh - 9.5rem);
+    }
+  }
+}

frontend/tsconfig.app.json

@@ -4,10 +4,14 @@
   "extends": "./tsconfig.json",
   "compilerOptions": {
     "outDir": "./out-tsc/app",
-    "types": []
+    "types": [
+      "node"
+    ]
   },
   "files": [
-    "src/main.ts"
+    "src/main.ts",
+    "src/main.server.ts",
+    "src/server.ts"
   ],
   "include": [
     "src/**/*.d.ts"

frontend/tsconfig.json

@@ -14,6 +14,7 @@
     "esModuleInterop": true,
     "experimentalDecorators": true,
     "moduleResolution": "bundler",
+    "resolveJsonModule": true,
     "importHelpers": true,
     "target": "ES2022",
     "module": "ES2022"