/* ============================================
   Library Page (Episode Catalogue)
   ============================================ */

.library-header {
  text-align: center;
  padding: var(--space-24) 0 var(--space-12);
}

.library-header h1 {
  font-size: var(--text-4xl);
  margin-bottom: var(--space-4);
}

.library-header p {
  color: var(--color-text-secondary);
  max-width: 50ch;
  margin: 0 auto;
}

/* ─── Browse Toggle ─── */
.browse-toggle {
  display: flex;
  justify-content: center;
  gap: var(--space-1);
  margin-bottom: var(--space-12);
  border-bottom: 1px solid var(--color-border);
  padding-bottom: var(--space-4);
}

.browse-toggle button {
  background: none;
  border: none;
  font-family: var(--font-body);
  font-variant: small-caps;
  letter-spacing: 0.08em;
  text-transform: lowercase;
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  padding: var(--space-2) var(--space-4);
  cursor: pointer;
  transition: color var(--transition-fast);
  position: relative;
}

.browse-toggle button:hover {
  color: var(--color-text-primary);
}

.browse-toggle button.active {
  color: var(--color-text-primary);
}

.browse-toggle button.active::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 100%;
  height: 1px;
  background-color: var(--color-accent);
}

/* ─── Filter Chips ─── */
.filter-chips {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  justify-content: center;
  margin-bottom: var(--space-12);
}

.filter-chip {
  background: none;
  border: 1px solid var(--color-border);
  font-family: var(--font-body);
  font-variant: small-caps;
  letter-spacing: 0.08em;
  text-transform: lowercase;
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  padding: var(--space-1) var(--space-3);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.filter-chip:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.filter-chip.active {
  background-color: var(--color-accent);
  border-color: var(--color-accent);
  color: var(--color-bg);
}

/* ─── Year Section ─── */
.year-section {
  margin-bottom: var(--space-16);
}

.year-header {
  font-variant: small-caps;
  letter-spacing: 0.1em;
  text-transform: lowercase;
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  border-bottom: 1px solid var(--color-border);
  padding-bottom: var(--space-4);
  margin-bottom: var(--space-8);
}

/* ─── Library List View ─── */
.library-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.library-item {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: var(--space-6);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  overflow: hidden;
  text-decoration: none;
  transition: border-color var(--transition-fast);
}

.library-item:hover {
  border-color: var(--color-border);
}

.library-item-image {
  aspect-ratio: 4 / 3;
  overflow: hidden;
}

.library-item-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: sepia(15%) saturate(85%) contrast(105%);
  transition: filter var(--transition-image);
}

.library-item:hover .library-item-image img {
  filter: sepia(5%) saturate(95%) contrast(110%);
}

.library-item-content {
  padding: var(--space-6);
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.library-item-number {
  font-variant: small-caps;
  letter-spacing: 0.08em;
  text-transform: lowercase;
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  margin-bottom: var(--space-2);
}

.library-item h3 {
  font-size: var(--text-xl);
  margin-bottom: var(--space-2);
  line-height: var(--leading-tight);
  color: var(--color-text-primary);
}

.library-item-subtitle {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-3);
  font-style: italic;
}

.library-item-meta {
  display: flex;
  gap: var(--space-4);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  font-variant: small-caps;
  letter-spacing: 0.05em;
  text-transform: lowercase;
}

/* ─── Load More ─── */
.load-more {
  text-align: center;
  margin-top: var(--space-12);
}

@media (max-width: 768px) {
  .library-item {
    grid-template-columns: 1fr;
  }

  .library-item-image {
    aspect-ratio: 16 / 9;
  }
}