/* Chapter Architectural Figures Carousel & Thumbnail Grid */

details.figure-carousel-container {
  background: var(--color-surface-alt, #161b22);
  border: 1px solid var(--color-border, #30363d);
  border-radius: 14px;
  padding: 1rem 1.25rem;
  margin-bottom: 2rem;
  position: relative;
  transition: all 0.2s ease;
}

details.figure-carousel-container[open] {
  padding-bottom: 1.25rem;
}

summary.figure-carousel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  outline: none;
  user-select: none;
  list-style: none;
  flex-wrap: wrap;
  gap: 0.75rem;
}

summary.figure-carousel-header::-webkit-details-marker {
  display: none;
}

.figure-toggle-arrow {
  display: inline-block;
  font-size: 0.85rem;
  color: var(--color-primary, #58a6ff);
  transition: transform 0.2s ease;
}

details[open] summary .figure-toggle-arrow {
  transform: rotate(90deg);
}

.figure-carousel-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-text, #f0f6fc);
  margin: 0;
}

.figure-carousel-subtitle {
  font-size: 0.825rem;
  color: var(--color-text-muted, #8b949e);
  margin: 0.2rem 0 0;
}

.figure-carousel-body {
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

/* Category Filter Bar */
.figure-filter-bar {
  display: flex;
  gap: 0.4rem;
  overflow-x: auto;
  padding-bottom: 0.5rem;
  margin-bottom: 0.75rem;
  scrollbar-width: none;
}
.figure-filter-bar::-webkit-scrollbar { display: none; }

.figure-filter-pill {
  background: var(--color-surface, #0d1117);
  border: 1px solid var(--color-border, #30363d);
  color: var(--color-text-muted, #8b949e);
  padding: 0.3rem 0.75rem;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
  transition: all 0.15s ease;
}

.figure-filter-pill:hover,
.figure-filter-pill.active {
  background: rgba(88, 166, 255, 0.15);
  color: var(--color-primary, #58a6ff);
  border-color: var(--color-primary, #58a6ff);
}

/* Controls / View Toggle */
.figure-header-controls {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.figure-view-toggle {
  display: inline-flex;
  background: var(--color-surface, #0d1117);
  border: 1px solid var(--color-border, #30363d);
  border-radius: 8px;
  padding: 2px;
}

.figure-toggle-btn {
  background: transparent;
  border: none;
  color: var(--color-text-muted, #8b949e);
  padding: 0.3rem 0.6rem;
  border-radius: 6px;
  cursor: pointer;
  font-size: 0.75rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 0.3rem;
  transition: all 0.15s ease;
}

.figure-toggle-btn.active {
  background: var(--color-surface-alt, #21262d);
  color: var(--color-primary, #58a6ff);
}

/* Track / Filmstrip View */
.figure-carousel-track-wrapper {
  position: relative;
  display: flex;
  align-items: center;
}

.figure-carousel-track {
  display: flex;
  gap: 1rem;
  overflow-x: auto;
  padding: 0.5rem 0.25rem 0.75rem;
  scroll-snap-type: x mandatory;
  scroll-behavior: smooth;
  width: 100%;
  scrollbar-width: thin;
  scrollbar-color: var(--color-primary, #58a6ff) transparent;
}

.figure-carousel-track::-webkit-scrollbar {
  height: 6px;
}

.figure-carousel-track::-webkit-scrollbar-thumb {
  background: var(--color-border, #30363d);
  border-radius: 3px;
}

/* Grid View Mode */
.figure-carousel-track.grid-view {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 1rem;
  overflow-x: visible;
  scroll-snap-type: none;
}

/* Thumbnail Card */
.figure-card {
  flex: 0 0 240px;
  scroll-snap-align: start;
  background: var(--color-surface, #0d1117);
  border: 1px solid var(--color-border, #30363d);
  border-radius: 10px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
  transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
  cursor: pointer;
  position: relative;
}

.figure-card:hover {
  transform: translateY(-3px);
  border-color: var(--color-primary, #58a6ff);
  box-shadow: 0 8px 24px rgba(88, 166, 255, 0.18);
}

.figure-card-header {
  padding: 0.6rem 0.75rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(255, 255, 255, 0.02);
}

.figure-badge {
  background: rgba(88, 166, 255, 0.15);
  color: var(--color-primary, #58a6ff);
  border: 1px solid rgba(88, 166, 255, 0.3);
  border-radius: 12px;
  padding: 0.18rem 0.5rem;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.figure-audio-tag {
  font-size: 0.7rem;
  color: var(--color-text-muted, #8b949e);
  display: flex;
  align-items: center;
  gap: 0.25rem;
  font-weight: 600;
}

.figure-audio-tag svg {
  fill: currentColor;
}

.figure-card-body {
  height: 140px;
  padding: 0.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #ffffff;
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--color-border, #30363d);
}

.figure-card-svg {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  transition: transform 0.25s ease;
}

.figure-card:hover .figure-card-svg {
  transform: scale(1.04);
}

.figure-card-footer {
  padding: 0.65rem 0.75rem;
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  background: var(--color-surface, #0d1117);
}

.figure-name {
  font-size: 0.825rem;
  font-weight: 600;
  color: var(--color-text, #f0f6fc);
  margin: 0 0 0.25rem;
  line-height: 1.25;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.figure-chapter {
  font-size: 0.7rem;
  color: var(--color-text-muted, #8b949e);
  margin: 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.figure-card-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 0.5rem;
  padding-top: 0.4rem;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.figure-btn-view {
  font-size: 0.72rem;
  color: var(--color-primary, #58a6ff);
  background: transparent;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.25rem;
  font-weight: 600;
  padding: 0;
}

.figure-btn-view:hover {
  text-decoration: underline;
}

.figure-btn-listen {
  font-size: 0.7rem;
  color: #2ea043;
  background: rgba(46, 160, 67, 0.12);
  border: 1px solid rgba(46, 160, 67, 0.3);
  border-radius: 6px;
  padding: 0.15rem 0.45rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.25rem;
  font-weight: 600;
  transition: all 0.15s ease;
}

.figure-btn-listen:hover {
  background: rgba(46, 160, 67, 0.25);
  border-color: #2ea043;
}

/* Nav Arrows */
.figure-nav-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 10;
  background: var(--color-surface, #0d1117);
  border: 1px solid var(--color-border, #30363d);
  border-radius: 50%;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--color-text, #f0f6fc);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
  transition: all 0.2s ease;
  opacity: 0.9;
}

.figure-nav-btn:hover {
  opacity: 1;
  border-color: var(--color-primary, #58a6ff);
  color: var(--color-primary, #58a6ff);
  transform: translateY(-50%) scale(1.08);
}

.figure-nav-left { left: -0.75rem; }
.figure-nav-right { right: -0.75rem; }

/* Modal Styles */
.figure-modal {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 999999;
  background: rgba(4, 4, 6, 0.92);
  backdrop-filter: blur(10px);
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
}

.figure-modal.active {
  display: flex;
}

.figure-modal-content {
  background: var(--color-surface, #0d1117);
  border: 1px solid var(--color-border, #30363d);
  border-radius: 14px;
  width: 95vw;
  max-width: 1080px;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.6);
}

.figure-modal-header {
  padding: 0.85rem 1.25rem;
  border-bottom: 1px solid var(--color-border, #30363d);
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--color-surface-alt, #161b22);
}

.figure-modal-title {
  margin: 0;
  font-size: 1.1rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 0.6rem;
  color: var(--color-text, #f0f6fc);
}

.figure-modal-controls {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.figure-modal-body {
  flex: 1;
  min-height: 420px;
  max-height: calc(80vh - 120px);
  padding: 1.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #ffffff;
  overflow: auto;
  position: relative;
}

.figure-modal-img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  transition: transform 0.15s ease;
}

.figure-modal-footer {
  padding: 0.75rem 1.25rem;
  border-top: 1px solid var(--color-border, #30363d);
  background: var(--color-surface-alt, #161b22);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.85rem;
  color: var(--color-text-muted, #8b949e);
}