feat(frontend): about improvments

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

@@ -29,7 +29,7 @@
   text-transform: uppercase;
   letter-spacing: 0.15em;
   font-size: 0.875rem;
-  color: var(--color-primary-500);
+  color: var(--color-secondary-600);
   font-weight: 700;
   margin-bottom: var(--space-2);
   display: block;
@@ -69,7 +69,15 @@ h1 {
   font-size: 1.1rem;
   line-height: 1.7;
   color: var(--color-text-main);
-  margin-bottom: var(--space-8);
+  margin-bottom: var(--space-4);
+}
+
+.passions-title {
+  font-size: 1rem;
+  text-transform: uppercase;
+  letter-spacing: 0.08em;
+  color: var(--color-secondary-600);
+  margin-bottom: var(--space-4);
 }
 
 .tags-container {
@@ -92,13 +100,14 @@ h1 {
   font-weight: 500;
   font-size: 0.9rem;
   box-shadow: var(--shadow-sm);
-  transition: all 0.2s ease;
+  transition: background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease, box-shadow 0.2s ease;
 }
 
-.tag:hover {
-  transform: translateY(-2px);
-  border-color: var(--color-primary-500);
-  color: var(--color-primary-500);
+.tag.is-active {
+  background: var(--color-primary-500);
+  border-color: var(--color-primary-600);
+  color: var(--color-neutral-900);
+  font-weight: 600;
   box-shadow: var(--shadow-md);
 }
 
@@ -119,13 +128,37 @@ h1 {
 }
 
 .photo-card {
-  background: var(--color-surface-card);
+  background: #ffffff;
   padding: 1rem;
   border-radius: var(--radius-lg);
-  box-shadow: var(--shadow-lg);
+  border: 1px solid var(--color-border);
+  box-shadow: var(--shadow-sm);
   width: 100%;
   max-width: 260px;
   position: relative;
+  transition: box-shadow 0.2s ease, transform 0.2s ease, border-color 0.2s ease, outline-color 0.2s ease;
+  cursor: pointer;
+  outline: 2px solid transparent;
+  outline-offset: 2px;
+}
+
+.photo-card:hover {
+  transform: translateY(-3px);
+  box-shadow: var(--shadow-md);
+  border-color: var(--color-neutral-300);
+}
+
+.photo-card:focus-visible {
+  outline-color: var(--color-primary-600);
+}
+
+.photo-card.is-active {
+  border-color: var(--color-primary-600);
+  box-shadow: 0 0 0 3px rgb(250 207 10 / 30%), var(--shadow-md);
+}
+
+.photo-card.is-selected {
+  border-color: var(--color-primary-700);
 }
 
 .placeholder-img {
@@ -134,6 +167,15 @@ h1 {
   background: linear-gradient(45deg, var(--color-neutral-200), var(--color-neutral-100));
   border-radius: var(--radius-md);
   margin-bottom: 1rem;
+  border-bottom: 1px solid var(--color-neutral-300);
+  overflow: hidden;
+}
+
+.placeholder-img img {
+  width: 100%;
+  height: 100%;
+  display: block;
+  object-fit: cover;
 }
 
 .member-info {