Merge pull request 'dev' (#37) from dev into main

Reviewed-on: #37

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/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/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

@@ -163,7 +163,13 @@ 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 +321,18 @@ 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 +388,23 @@ 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 +488,15 @@ 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());
@@ -596,13 +625,43 @@ public class AdminShopProductControllerService {
         descriptions.put("de", firstNonBlank(normalizeOptional(payload.getDescriptionDe()), fallbackDescription));
         descriptions.put("fr", firstNonBlank(normalizeOptional(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
         );
     }
 
@@ -670,6 +729,13 @@ 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 +852,13 @@ 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

@@ -375,16 +375,18 @@ public class PublicShopCatalogService {
                                                     Map<String, List<PublicMediaUsageDto>> productMediaBySlug,
                                                     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(),

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"));
+    }
 }

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/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-shop.component.html

@@ -473,7 +473,7 @@
       </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 +565,7 @@
           </div>
         </section>
 
-        <section class="form-section">
+        <section class="form-section ui-subpanel">
           <div class="panel-heading">
             <div>
               <h3>Contenuti localizzati</h3>
@@ -584,13 +584,28 @@
               <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>
@@ -634,106 +649,145 @@
           </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 +796,24 @@
 
               <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"
+                  >
+                    <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 +823,8 @@
                     type="number"
                     min="0"
                     step="0.01"
-                    [(ngModel)]="variant.priceChf"
-                    [name]="'variant-price-' + index"
+                    [(ngModel)]="material.priceChf"
+                    [name]="'material-price-' + index"
                   />
                 </label>
 
@@ -817,8 +833,8 @@
                   <input
                     class="ui-form-control"
                     type="number"
-                    [(ngModel)]="variant.sortOrder"
-                    [name]="'variant-sort-order-' + index"
+                    [(ngModel)]="material.sortOrder"
+                    [name]="'material-sort-order-' + index"
                   />
                 </label>
 
@@ -826,9 +842,9 @@
                   <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 +853,34 @@
                   <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 +945,30 @@
                     <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;
@@ -61,7 +117,6 @@
 .category-manager,
 .category-editor,
 .detail-stack,
-.form-section,
 .variant-stack,
 .image-stack,
 .media-grid,
@@ -71,6 +126,12 @@
   gap: var(--space-3);
 }
 
+.form-section {
+  display: flex;
+  flex-direction: column;
+  gap: var(--space-2);
+}
+
 .panel-heading {
   display: flex;
   justify-content: space-between;
@@ -211,6 +272,17 @@
   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 +296,6 @@ tbody tr.selected {
   background: #fff4c0;
 }
 
-.detail-panel {
-  gap: var(--space-4);
-}
-
 .detail-panel .ui-meta-item {
   padding: var(--space-2);
 }
@@ -277,15 +345,16 @@ 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 +385,19 @@ 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/pages/admin-shop.component.ts

@@ -22,6 +22,10 @@ import {
   AdminUpsertShopProductVariantPayload,
   AdminPublicMediaUsage,
 } from '../services/admin-shop.service';
+import {
+  AdminFilamentVariant,
+  AdminOperationsService,
+} from '../services/admin-operations.service';
 import {
   AdminMediaLanguage,
   AdminMediaTranslation,
@@ -47,13 +51,8 @@ interface CategoryFormState {
   sortOrder: number;
 }
 
-interface ProductVariantFormState {
-  id: string | null;
-  sku: string;
-  variantLabel: string;
-  colorName: string;
-  colorHex: string;
-  internalMaterialCode: string;
+interface ProductMaterialFormState {
+  materialCode: string;
   priceChf: string;
   isDefault: boolean;
   isActive: boolean;
@@ -66,15 +65,13 @@ interface ProductFormState {
   names: Record<ShopLanguage, string>;
   excerpts: Record<ShopLanguage, string>;
   descriptions: Record<ShopLanguage, string>;
-  seoTitle: string;
-  seoDescription: string;
-  ogTitle: string;
-  ogDescription: string;
+  seoTitles: Record<ShopLanguage, string>;
+  seoDescriptions: Record<ShopLanguage, string>;
   indexable: boolean;
   isFeatured: boolean;
   isActive: boolean;
   sortOrder: number;
-  variants: ProductVariantFormState[];
+  materials: ProductMaterialFormState[];
 }
 
 interface ProductImageItem {
@@ -128,6 +125,7 @@ const MAX_LIST_PANEL_WIDTH_PERCENT = 68;
 })
 export class AdminShopComponent implements OnInit, OnDestroy {
   private readonly adminShopService = inject(AdminShopService);
+  private readonly adminOperationsService = inject(AdminOperationsService);
   @ViewChild('workspaceRef')
   private readonly workspaceRef?: ElementRef<HTMLDivElement>;
 
@@ -142,6 +140,7 @@ export class AdminShopComponent implements OnInit, OnDestroy {
   listPanelWidthPercent = 53;
   categories: AdminShopCategory[] = [];
   products: AdminShopProduct[] = [];
+  stockFilamentVariants: AdminFilamentVariant[] = [];
   filteredProducts: AdminShopProduct[] = [];
   selectedProduct: AdminShopProduct | null = null;
   selectedProductId: string | null = null;
@@ -210,10 +209,13 @@ export class AdminShopComponent implements OnInit, OnDestroy {
     forkJoin({
       categories: this.adminShopService.getCategories(),
       products: this.adminShopService.getProducts(),
+      filamentVariants: this.adminOperationsService.getFilamentVariants(),
     }).subscribe({
-      next: ({ categories, products }) => {
+      next: ({ categories, products, filamentVariants }) => {
         this.categories = categories;
         this.products = products;
+        this.stockFilamentVariants =
+          this.filterStockedFilamentVariants(filamentVariants);
         this.applyProductFilters();
         this.ensureCategoryFilterStillValid();
         this.loading = false;
@@ -233,6 +235,9 @@ export class AdminShopComponent implements OnInit, OnDestroy {
           this.selectedProduct = null;
           this.selectedProductId = null;
           this.productImages = [];
+          if (this.productForm.materials.length === 0) {
+            this.resetProductForm();
+          }
           return;
         }
 
@@ -527,43 +532,113 @@ export class AdminShopComponent implements OnInit, OnDestroy {
     return !!this.productForm.names[language].trim();
   }
 
-  addVariant(): void {
-    const sortOrder = (this.productForm.variants.at(-1)?.sortOrder ?? -1) + 1;
-    const firstVariant = this.productForm.variants.length === 0;
-    this.productForm.variants = [
-      ...this.productForm.variants,
-      this.createEmptyVariantForm(sortOrder, firstVariant),
+  isContentLanguageStarted(language: ShopLanguage): boolean {
+    return (
+      !!this.productForm.names[language].trim() ||
+      !!this.productForm.excerpts[language].trim() ||
+      !!this.productForm.descriptions[language].trim()
+    );
+  }
+
+  isContentLanguageIncomplete(language: ShopLanguage): boolean {
+    return (
+      this.isContentLanguageStarted(language) &&
+      !this.isContentLanguageComplete(language)
+    );
+  }
+
+  isSeoLanguageComplete(language: ShopLanguage): boolean {
+    return (
+      !!this.productForm.seoTitles[language].trim() &&
+      !!this.productForm.seoDescriptions[language].trim()
+    );
+  }
+
+  isSeoLanguageStarted(language: ShopLanguage): boolean {
+    return (
+      !!this.productForm.seoTitles[language].trim() ||
+      !!this.productForm.seoDescriptions[language].trim()
+    );
+  }
+
+  isSeoLanguageIncomplete(language: ShopLanguage): boolean {
+    return (
+      this.isSeoLanguageStarted(language) &&
+      !this.isSeoLanguageComplete(language)
+    );
+  }
+
+  addMaterial(): void {
+    const nextMaterialCode = this.nextAvailableMaterialCode();
+    if (!nextMaterialCode) {
+      return;
+    }
+    const sortOrder = (this.productForm.materials.at(-1)?.sortOrder ?? -1) + 1;
+    const firstMaterial = this.productForm.materials.length === 0;
+    this.productForm.materials = [
+      ...this.productForm.materials,
+      this.createEmptyMaterialForm(sortOrder, firstMaterial, nextMaterialCode),
     ];
   }
 
-  removeVariant(index: number): void {
-    if (this.productForm.variants.length <= 1) {
+  removeMaterial(index: number): void {
+    if (this.productForm.materials.length <= 1) {
       return;
     }
 
-    const nextVariants = this.productForm.variants.filter(
+    const nextMaterials = this.productForm.materials.filter(
       (_, currentIndex) => currentIndex !== index,
     );
-    if (!nextVariants.some((variant) => variant.isDefault)) {
-      nextVariants[0].isDefault = true;
+    if (!nextMaterials.some((material) => material.isDefault)) {
+      nextMaterials[0].isDefault = true;
     }
-    this.productForm.variants = nextVariants;
+    this.productForm.materials = nextMaterials;
   }
 
-  setDefaultVariant(index: number): void {
-    this.productForm.variants = this.productForm.variants.map(
-      (variant, currentIndex) => ({
-        ...variant,
+  setDefaultMaterial(index: number): void {
+    this.productForm.materials = this.productForm.materials.map(
+      (material, currentIndex) => ({
+        ...material,
         isDefault: currentIndex === index,
       }),
     );
   }
 
-  onColorHexBlur(variant: ProductVariantFormState): void {
-    if (!variant.colorHex.trim()) {
-      return;
+  availableMaterialChoices(currentMaterialCode: string): string[] {
+    const normalizedCurrentMaterialCode = currentMaterialCode
+      .trim()
+      .toUpperCase();
+    const selectedCodes = new Set(
+      this.productForm.materials
+        .map((material) => material.materialCode.trim().toUpperCase())
+        .filter(Boolean),
+    );
+
+    const availableCodes = this.stockMaterialCodes().filter(
+      (materialCode) =>
+        materialCode === normalizedCurrentMaterialCode ||
+        !selectedCodes.has(materialCode),
+    );
+
+    if (
+      normalizedCurrentMaterialCode &&
+      !availableCodes.includes(normalizedCurrentMaterialCode)
+    ) {
+      return [normalizedCurrentMaterialCode, ...availableCodes];
     }
-    variant.colorHex = variant.colorHex.trim().toUpperCase();
+
+    return availableCodes;
+  }
+
+  materialColorCount(materialCode: string): number {
+    return this.stockVariantsForMaterial(materialCode).length;
+  }
+
+  materialColorPreview(materialCode: string): string[] {
+    return this.stockVariantsForMaterial(materialCode)
+      .map((variant) => variant.colorName.trim())
+      .filter(Boolean)
+      .slice(0, 6);
   }
 
   onModelFileSelected(event: Event): void {
@@ -729,6 +804,18 @@ export class AdminShopComponent implements OnInit, OnDestroy {
     );
   }
 
+  isImageLanguageStarted(language: AdminMediaLanguage): boolean {
+    const translation = this.imageUploadState.translations[language];
+    return !!translation.title.trim() || !!translation.altText.trim();
+  }
+
+  isImageLanguageIncomplete(language: AdminMediaLanguage): boolean {
+    return (
+      this.isImageLanguageStarted(language) &&
+      !this.isImageLanguageComplete(language)
+    );
+  }
+
   uploadProductImage(): void {
     if (
       !this.selectedProduct ||
@@ -907,8 +994,8 @@ export class AdminShopComponent implements OnInit, OnDestroy {
     return product.id;
   }
 
-  trackVariant(_: number, variant: ProductVariantFormState): string {
-    return variant.id ?? `${variant.colorName}-${variant.sortOrder}`;
+  trackMaterial(_: number, material: ProductMaterialFormState): string {
+    return `${material.materialCode || 'material'}-${material.sortOrder}`;
   }
 
   trackImage(_: number, image: ProductImageItem): string {
@@ -1087,6 +1174,7 @@ export class AdminShopComponent implements OnInit, OnDestroy {
       this.categoryFilter !== 'ALL'
         ? this.categoryFilter
         : (this.categories[0]?.id ?? '');
+    const defaultMaterialCode = this.stockMaterialCodes()[0] ?? '';
     return {
       categoryId: defaultCategoryId,
       slug: '',
@@ -1108,15 +1196,25 @@ export class AdminShopComponent implements OnInit, OnDestroy {
         de: '',
         fr: '',
       },
-      seoTitle: '',
-      seoDescription: '',
-      ogTitle: '',
-      ogDescription: '',
+      seoTitles: {
+        it: '',
+        en: '',
+        de: '',
+        fr: '',
+      },
+      seoDescriptions: {
+        it: '',
+        en: '',
+        de: '',
+        fr: '',
+      },
       indexable: true,
       isFeatured: false,
       isActive: true,
       sortOrder: 0,
-      variants: [this.createEmptyVariantForm(0, true)],
+      materials: defaultMaterialCode
+        ? [this.createEmptyMaterialForm(0, true, defaultMaterialCode)]
+        : [],
     };
   }
 
@@ -1124,17 +1222,13 @@ export class AdminShopComponent implements OnInit, OnDestroy {
     Object.assign(this.productForm, this.createEmptyProductForm());
   }
 
-  private createEmptyVariantForm(
+  private createEmptyMaterialForm(
     sortOrder: number,
     isDefault: boolean,
-  ): ProductVariantFormState {
+    materialCode = '',
+  ): ProductMaterialFormState {
     return {
-      id: null,
-      sku: '',
-      variantLabel: '',
-      colorName: '',
-      colorHex: '',
-      internalMaterialCode: '',
+      materialCode,
       priceChf: '0.00',
       isDefault,
       isActive: true,
@@ -1164,35 +1258,72 @@ export class AdminShopComponent implements OnInit, OnDestroy {
         de: product.descriptionDe ?? '',
         fr: product.descriptionFr ?? '',
       },
-      seoTitle: product.seoTitle ?? '',
-      seoDescription: product.seoDescription ?? '',
-      ogTitle: product.ogTitle ?? '',
-      ogDescription: product.ogDescription ?? '',
+      seoTitles: {
+        it: product.seoTitleIt ?? '',
+        en: product.seoTitleEn ?? '',
+        de: product.seoTitleDe ?? '',
+        fr: product.seoTitleFr ?? '',
+      },
+      seoDescriptions: {
+        it: product.seoDescriptionIt ?? '',
+        en: product.seoDescriptionEn ?? '',
+        de: product.seoDescriptionDe ?? '',
+        fr: product.seoDescriptionFr ?? '',
+      },
       indexable: product.indexable,
       isFeatured: product.isFeatured,
       isActive: product.isActive,
       sortOrder: product.sortOrder ?? 0,
-      variants: product.variants.length
-        ? product.variants.map((variant) => this.toVariantForm(variant))
-        : [this.createEmptyVariantForm(0, true)],
+      materials: this.toMaterialForms(product.variants),
     });
   }
 
-  private toVariantForm(
-    variant: AdminShopProductVariant,
-  ): ProductVariantFormState {
-    return {
-      id: variant.id,
-      sku: variant.sku ?? '',
-      variantLabel: variant.variantLabel ?? '',
-      colorName: variant.colorName ?? '',
-      colorHex: variant.colorHex ?? '',
-      internalMaterialCode: variant.internalMaterialCode ?? '',
-      priceChf: Number(variant.priceChf ?? 0).toFixed(2),
-      isDefault: variant.isDefault,
-      isActive: variant.isActive,
-      sortOrder: variant.sortOrder ?? 0,
-    };
+  private toMaterialForms(
+    variants: AdminShopProductVariant[],
+  ): ProductMaterialFormState[] {
+    if (!variants.length) {
+      const defaultMaterialCode = this.stockMaterialCodes()[0] ?? '';
+      return defaultMaterialCode
+        ? [this.createEmptyMaterialForm(0, true, defaultMaterialCode)]
+        : [];
+    }
+
+    const groups = new Map<string, AdminShopProductVariant[]>();
+    for (const variant of variants) {
+      const materialCode = (variant.internalMaterialCode ?? '')
+        .trim()
+        .toUpperCase();
+      if (!materialCode) {
+        continue;
+      }
+      const group = groups.get(materialCode) ?? [];
+      group.push(variant);
+      groups.set(materialCode, group);
+    }
+
+    const materials = Array.from(groups.entries())
+      .map(([materialCode, materialVariants]) => {
+        const sortedVariants = [...materialVariants].sort(
+          (left, right) => (left.sortOrder ?? 0) - (right.sortOrder ?? 0),
+        );
+        const firstVariant = sortedVariants[0];
+        return {
+          materialCode,
+          priceChf: Number(firstVariant?.priceChf ?? 0).toFixed(2),
+          isDefault: materialVariants.some((variant) => variant.isDefault),
+          isActive: materialVariants.some((variant) => variant.isActive),
+          sortOrder: Math.min(
+            ...materialVariants.map((variant) => variant.sortOrder ?? 0),
+          ),
+        };
+      })
+      .sort((left, right) => left.sortOrder - right.sortOrder);
+
+    if (!materials.some((material) => material.isDefault) && materials[0]) {
+      materials[0].isDefault = true;
+    }
+
+    return materials;
   }
 
   private validateProductForm(): string | null {
@@ -1206,60 +1337,49 @@ export class AdminShopComponent implements OnInit, OnDestroy {
       if (!this.productForm.names[language].trim()) {
         return `Il nome prodotto ${this.languageLabels[language]} è obbligatorio.`;
       }
+      if (this.productForm.seoDescriptions[language].trim().length > 160) {
+        return `La SEO description ${this.languageLabels[language]} deve stare sotto i 160 caratteri.`;
+      }
     }
-    if (this.productForm.variants.length === 0) {
-      return 'È richiesta almeno una variante.';
+    if (this.productForm.materials.length === 0) {
+      return 'Seleziona almeno un materiale disponibile a stock.';
     }
 
-    const colorNames = new Set<string>();
     let defaultCount = 0;
-    for (const variant of this.productForm.variants) {
-      if (!variant.colorName.trim()) {
-        return 'Ogni variante richiede un nome colore.';
+    const materialCodes = new Set<string>();
+    for (const material of this.productForm.materials) {
+      const materialCode = material.materialCode.trim().toUpperCase();
+      if (!materialCode) {
+        return 'Ogni riga materiale richiede un materiale selezionato.';
       }
-      const colorKey = variant.colorName.trim().toLowerCase();
-      if (colorNames.has(colorKey)) {
-        return `Il colore "${variant.colorName.trim()}" è duplicato.`;
+      if (materialCodes.has(materialCode)) {
+        return `Il materiale "${materialCode}" è duplicato.`;
       }
-      colorNames.add(colorKey);
-      if (!variant.internalMaterialCode.trim()) {
-        return `La variante "${variant.colorName.trim()}" richiede un codice materiale interno.`;
+      materialCodes.add(materialCode);
+      if (!this.stockMaterialCodes().includes(materialCode)) {
+        return `Il materiale "${materialCode}" non è disponibile nello stock attivo.`;
       }
-      const price = Number(variant.priceChf);
+      if (this.stockVariantsForMaterial(materialCode).length === 0) {
+        return `Il materiale "${materialCode}" non ha colori disponibili a stock.`;
+      }
+
+      const price = Number(material.priceChf);
       if (!Number.isFinite(price) || price < 0) {
-        return `La variante "${variant.colorName.trim()}" ha un prezzo non valido.`;
+        return `Il materiale "${materialCode}" ha un prezzo non valido.`;
       }
-      if (
-        variant.colorHex.trim() &&
-        !/^#[0-9A-Fa-f]{6}$/.test(variant.colorHex.trim())
-      ) {
-        return `La variante "${variant.colorName.trim()}" ha un colore HEX non valido.`;
-      }
-      if (variant.isDefault) {
+      if (material.isDefault) {
         defaultCount += 1;
       }
     }
     if (defaultCount !== 1) {
-      return 'Devi impostare una sola variante predefinita.';
+      return 'Devi impostare un solo materiale predefinito.';
     }
 
     return null;
   }
 
   private buildProductPayload(): AdminUpsertShopProductPayload {
-    const variants: AdminUpsertShopProductVariantPayload[] =
-      this.productForm.variants.map((variant) => ({
-        id: variant.id ?? undefined,
-        sku: this.optionalValue(variant.sku),
-        variantLabel: this.optionalValue(variant.variantLabel),
-        colorName: variant.colorName.trim(),
-        colorHex: this.optionalValue(variant.colorHex)?.toUpperCase(),
-        internalMaterialCode: variant.internalMaterialCode.trim().toUpperCase(),
-        priceChf: Number(variant.priceChf),
-        isDefault: variant.isDefault,
-        isActive: variant.isActive,
-        sortOrder: Number(variant.sortOrder) || 0,
-      }));
+    const variants = this.buildVariantsFromMaterials();
 
     return {
       categoryId: this.productForm.categoryId,
@@ -1279,10 +1399,28 @@ export class AdminShopComponent implements OnInit, OnDestroy {
       descriptionEn: this.optionalValue(this.productForm.descriptions['en']),
       descriptionDe: this.optionalValue(this.productForm.descriptions['de']),
       descriptionFr: this.optionalValue(this.productForm.descriptions['fr']),
-      seoTitle: this.optionalValue(this.productForm.seoTitle),
-      seoDescription: this.optionalValue(this.productForm.seoDescription),
-      ogTitle: this.optionalValue(this.productForm.ogTitle),
-      ogDescription: this.optionalValue(this.productForm.ogDescription),
+      seoTitle: this.optionalValue(this.productForm.seoTitles['it']),
+      seoTitleIt: this.optionalValue(this.productForm.seoTitles['it']),
+      seoTitleEn: this.optionalValue(this.productForm.seoTitles['en']),
+      seoTitleDe: this.optionalValue(this.productForm.seoTitles['de']),
+      seoTitleFr: this.optionalValue(this.productForm.seoTitles['fr']),
+      seoDescription: this.optionalValue(
+        this.productForm.seoDescriptions['it'],
+      ),
+      seoDescriptionIt: this.optionalValue(
+        this.productForm.seoDescriptions['it'],
+      ),
+      seoDescriptionEn: this.optionalValue(
+        this.productForm.seoDescriptions['en'],
+      ),
+      seoDescriptionDe: this.optionalValue(
+        this.productForm.seoDescriptions['de'],
+      ),
+      seoDescriptionFr: this.optionalValue(
+        this.productForm.seoDescriptions['fr'],
+      ),
+      ogTitle: this.optionalValue(this.productForm.seoTitles['it']),
+      ogDescription: this.optionalValue(this.productForm.seoDescriptions['it']),
       indexable: this.productForm.indexable,
       isFeatured: this.productForm.isFeatured,
       isActive: this.productForm.isActive,
@@ -1291,6 +1429,174 @@ export class AdminShopComponent implements OnInit, OnDestroy {
     };
   }
 
+  private buildVariantsFromMaterials(): AdminUpsertShopProductVariantPayload[] {
+    const persistedDefaultVariant = this.selectedProduct?.variants.find(
+      (variant) => variant.isDefault,
+    );
+    const existingVariantsByKey = new Map(
+      (this.selectedProduct?.variants ?? []).map((variant) => [
+        this.variantKey(
+          variant.internalMaterialCode,
+          variant.colorName,
+          variant.colorHex,
+        ),
+        variant,
+      ]),
+    );
+    const persistedDefaultKey = persistedDefaultVariant
+      ? this.variantKey(
+          persistedDefaultVariant.internalMaterialCode,
+          persistedDefaultVariant.colorName,
+          persistedDefaultVariant.colorHex,
+        )
+      : null;
+
+    const variants: AdminUpsertShopProductVariantPayload[] = [];
+    let defaultAssigned = false;
+
+    const sortedMaterials = [...this.productForm.materials].sort(
+      (left, right) => left.sortOrder - right.sortOrder,
+    );
+
+    for (const material of sortedMaterials) {
+      const materialCode = material.materialCode.trim().toUpperCase();
+      const stockVariants = this.stockVariantsForMaterial(materialCode);
+      let defaultVariantKeyForMaterial: string | null = null;
+
+      if (material.isDefault && persistedDefaultKey) {
+        defaultVariantKeyForMaterial =
+          stockVariants
+            .map((variant) =>
+              this.variantKey(
+                materialCode,
+                variant.colorName,
+                variant.colorHex,
+              ),
+            )
+            .find((variantKey) => variantKey === persistedDefaultKey) ?? null;
+      }
+
+      stockVariants.forEach((stockVariant, colorIndex) => {
+        const variantKey = this.variantKey(
+          materialCode,
+          stockVariant.colorName,
+          stockVariant.colorHex,
+        );
+        const existingVariant = existingVariantsByKey.get(variantKey);
+        const isDefault =
+          material.isDefault &&
+          !defaultAssigned &&
+          (defaultVariantKeyForMaterial
+            ? variantKey === defaultVariantKeyForMaterial
+            : colorIndex === 0);
+
+        variants.push({
+          id: existingVariant?.id,
+          sku: this.optionalValue(existingVariant?.sku ?? ''),
+          variantLabel: materialCode,
+          colorName: stockVariant.colorName.trim(),
+          colorHex: this.optionalValue(
+            stockVariant.colorHex ?? '',
+          )?.toUpperCase(),
+          internalMaterialCode: materialCode,
+          priceChf: Number(material.priceChf),
+          isDefault,
+          isActive: material.isActive,
+          sortOrder: material.sortOrder * 100 + colorIndex,
+        });
+
+        if (isDefault) {
+          defaultAssigned = true;
+        }
+      });
+    }
+
+    if (!defaultAssigned && variants[0]) {
+      variants[0].isDefault = true;
+    }
+
+    return variants;
+  }
+
+  stockMaterialCodes(): string[] {
+    return Array.from(
+      new Set(
+        this.stockFilamentVariants.map((variant) =>
+          variant.materialCode.trim().toUpperCase(),
+        ),
+      ),
+    ).sort((left, right) => left.localeCompare(right));
+  }
+
+  private stockVariantsForMaterial(
+    materialCode: string,
+  ): AdminFilamentVariant[] {
+    const targetMaterialCode = materialCode.trim().toUpperCase();
+    const seenKeys = new Set<string>();
+
+    return this.stockFilamentVariants
+      .filter(
+        (variant) =>
+          variant.materialCode.trim().toUpperCase() === targetMaterialCode,
+      )
+      .sort((left, right) => {
+        const leftName = `${left.colorName} ${left.variantDisplayName}`.trim();
+        const rightName =
+          `${right.colorName} ${right.variantDisplayName}`.trim();
+        return leftName.localeCompare(rightName);
+      })
+      .filter((variant) => {
+        const key = this.variantKey(
+          targetMaterialCode,
+          variant.colorName,
+          variant.colorHex,
+        );
+        if (seenKeys.has(key)) {
+          return false;
+        }
+        seenKeys.add(key);
+        return true;
+      });
+  }
+
+  private nextAvailableMaterialCode(): string | null {
+    const selectedCodes = new Set(
+      this.productForm.materials
+        .map((material) => material.materialCode.trim().toUpperCase())
+        .filter(Boolean),
+    );
+
+    return (
+      this.stockMaterialCodes().find(
+        (materialCode) => !selectedCodes.has(materialCode),
+      ) ?? null
+    );
+  }
+
+  private filterStockedFilamentVariants(
+    filamentVariants: AdminFilamentVariant[],
+  ): AdminFilamentVariant[] {
+    return filamentVariants.filter(
+      (variant) =>
+        variant.isActive &&
+        Number(variant.stockFilamentGrams ?? 0) > 0 &&
+        !!variant.materialCode?.trim() &&
+        !!variant.colorName?.trim(),
+    );
+  }
+
+  private variantKey(
+    materialCode: string | null | undefined,
+    colorName: string | null | undefined,
+    colorHex: string | null | undefined,
+  ): string {
+    return [
+      (materialCode ?? '').trim().toUpperCase(),
+      (colorName ?? '').trim().toLowerCase(),
+      (colorHex ?? '').trim().toUpperCase(),
+    ].join('|');
+  }
+
   private updateSelectedProduct(product: AdminShopProduct): void {
     this.selectedProduct = product;
     this.selectedProductId = product.id;
@@ -1454,6 +1760,10 @@ export class AdminShopComponent implements OnInit, OnDestroy {
     return normalized ? normalized : undefined;
   }
 
+  seoDescriptionLength(language: ShopLanguage): number {
+    return this.productForm.seoDescriptions[language].trim().length;
+  }
+
   private slugify(source: string): string {
     return source
       .normalize('NFD')

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/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/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>
 
@@ -120,12 +127,12 @@
                 </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">
@@ -213,6 +312,51 @@
               }
             </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]="selectedVariant()?.colorHex || '#facf0a'"
+                    ></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;
@@ -32,26 +41,35 @@
   gap: var(--space-5);
 }
 
+.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 +94,31 @@
 }
 
 .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 +130,30 @@
   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);
+  align-items: center;
+  padding: 0.9rem 1rem;
+  border: 1px solid rgba(16, 24, 32, 0.12);
+  border-radius: 1rem;
+  background: #fff;
+}
+
+.model-open-btn {
+  height: 2.35rem;
+  padding: 0 0.95rem;
+  border-radius: 0.65rem;
+  border: 1px solid rgba(16, 24, 32, 0.18);
+  background: #fff;
+  color: var(--color-text);
+  font-weight: 600;
+  cursor: pointer;
+}
+
+.model-open-btn:hover {
+  border-color: rgba(16, 24, 32, 0.3);
 }
 
 .viewer-kicker,
@@ -134,22 +174,15 @@
   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: 0.8rem;
+  text-align: left;
 }
 
 .title-block {
   display: grid;
-  gap: var(--space-3);
+  gap: 0.4rem;
 }
 
 .title-meta {
@@ -171,19 +204,21 @@
 }
 
 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 {
   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 +241,97 @@ 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 +372,21 @@ 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 p {
+  font-size: 1.06rem;
+  line-height: 1.75;
+}
+
+:host ::ng-deep app-card.purchase-shell .card-body {
+  padding: 0.95rem 1rem;
 }
 
 .state-card,
@@ -339,10 +429,17 @@ 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 +448,18 @@ h1 {
 
   .hero-media,
   .image-fallback {
-    min-height: 320px;
+    min-height: 300px;
+  }
+
+  .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

@@ -22,6 +22,20 @@ 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',
@@ -44,6 +58,7 @@ export class ProductDetailComponent {
   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>();
@@ -57,6 +72,9 @@ 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 +94,59 @@ 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 +174,15 @@ 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 +211,8 @@ 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 +221,7 @@ 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 +247,22 @@ 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 +281,45 @@ 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);
   }
 
@@ -263,9 +380,67 @@ export class ProductDetailComponent {
     return variant.colorHex || '#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 =
+      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 {
@@ -318,4 +493,142 @@ export class ProductDetailComponent {
       ogDescription: description,
     });
   }
+
+  private materialLabelForVariant(
+    variant: ShopProductVariantOption | null,
+  ): string {
+    return String(variant?.variantLabel || '').trim() || 'Standard';
+  }
+
+  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 syncPublicUrl(product: ShopProductDetail): void {
+    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/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/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);
+    }
+  }
+}