/* ============================================
   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-text-secondary);
  color: var(--color-text-primary);
}

/* Active filter: outline brass + brass text on transparent ground —
   visible affordance without flooding the viewport with accent fill. */
.filter-chip.active {
  background-color: transparent;
  border-color: var(--color-accent);
  color: var(--color-accent);
}

/* ─── 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;
}

/* ─── Section header (Released / On the Workbench) ─── */
.library-section + .library-section {
  margin-top: var(--space-16);
}

.library-section-header {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-style: italic;
  color: var(--color-text-secondary);
  border-bottom: 1px solid var(--color-border);
  padding-bottom: var(--space-3);
  margin-bottom: var(--space-8);
}

.library-section-note {
  display: block;
  font-family: var(--font-body);
  font-style: normal;
  font-size: var(--text-xs);
  font-variant: small-caps;
  letter-spacing: 0.08em;
  text-transform: lowercase;
  color: var(--color-text-muted);
  margin-top: var(--space-1);
}

/* ─── State badge (workbench only) ─── */
.library-state-badge {
  font-family: var(--font-body);
  font-variant: small-caps;
  letter-spacing: 0.08em;
  text-transform: lowercase;
  font-size: var(--text-xs);
  color: var(--color-accent);
  margin-bottom: var(--space-2);
}

/* ─── Action links (Watch / Listen) ─── */
.library-item-actions {
  display: flex;
  gap: var(--space-4);
  margin-top: var(--space-4);
}

.library-item-actions .library-link {
  font-family: var(--font-body);
  font-variant: small-caps;
  letter-spacing: 0.06em;
  text-transform: lowercase;
  font-size: var(--text-xs);
  color: var(--color-text-secondary);
  text-decoration: none;
  border-bottom: 1px solid var(--color-border);
  padding-bottom: 1px;
  transition: color var(--transition-fast), border-color var(--transition-fast);
}

.library-item-actions .library-link:hover {
  color: var(--color-accent);
  border-bottom-color: var(--color-accent);
}

.library-item-actions .library-link--primary {
  color: var(--color-text-primary);
}

/* ─── Thumbnail placeholder (no image yet) ─── */
.library-item-thumb-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background:
    radial-gradient(ellipse at 50% 35%, rgba(232, 178, 96, 0.18) 0%, rgba(232, 178, 96, 0.04) 45%, transparent 70%),
    var(--color-surface-raised);
  position: relative;
}

.library-item-thumb-placeholder::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at center, transparent 40%, rgba(26, 22, 18, 0.5) 100%);
  pointer-events: none;
}

.library-item-thumb-placeholder span {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 4rem;
  color: var(--color-accent);
  opacity: 0.55;
  position: relative;
  z-index: 1;
}

/* Workbench cards aren't links; soften the hover affordance */
.library-item--workbench {
  cursor: default;
}

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

/* ─── Empty/loading state ─── */
.library-empty {
  font-family: var(--font-display);
  font-style: italic;
  color: var(--color-text-muted);
  text-align: center;
  padding: var(--space-12) 0;
  font-size: var(--text-lg);
}

.library-status {
  text-align: center;
  font-style: italic;
  color: var(--color-text-muted);
  font-size: var(--text-sm);
  padding: var(--space-8) 0;
}

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

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