/* Book Container */
#book-container {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem 1rem;
  background: var(--bg);
  gap: 0.75rem;
  min-height: 50vh;
}

/* Navigation Arrows */
.nav-arrow {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  color: var(--text);
  font-size: 2.5rem;
  width: 48px;
  height: 80px;
  border-radius: 8px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
  flex-shrink: 0;
  line-height: 1;
}

.nav-arrow:hover {
  background: var(--bg-card);
  border-color: var(--accent);
  color: var(--accent);
}

.nav-arrow:disabled {
  opacity: 0.3;
  cursor: default;
}

.nav-arrow:disabled:hover {
  background: var(--bg-surface);
  border-color: var(--border);
  color: var(--text);
}

/* Book Spread */
#book-spread {
  display: flex;
  align-items: stretch;
  position: relative;
  background: var(--bg-card);
  border-radius: 4px;
  overflow: hidden;
  box-shadow: 0 8px 40px rgba(0,0,0,0.4);
  max-width: 1100px;
  width: 100%;
}

.page-slot {
  flex: 1;
  position: relative;
  background: var(--bg-surface);
  display: flex;
  align-items: center;
  justify-content: center;
  height: var(--book-height, 55vh);
  overflow: hidden;
}

.page-slot img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  transition: opacity 0.3s ease;
}

.page-slot img.loading {
  opacity: 0;
}

.page-number {
  position: absolute;
  bottom: 6px;
  font-size: 0.75rem;
  color: var(--text-muted);
  background: rgba(26,22,18,0.75);
  padding: 0.15rem 0.5rem;
  border-radius: 3px;
}

#page-left .page-number { left: 8px; }
#page-right .page-number { right: 8px; }

.page-items-layer {
  position: absolute;
  z-index: 8;
  pointer-events: none;
}

.page-item-composite {
  position: absolute;
  pointer-events: none;
  object-fit: fill;
  z-index: 0;
}

.page-items-svg {
  position: relative;
  z-index: 1;
  width: 100%;
  height: 100%;
  overflow: visible;
  pointer-events: none;
}

.page-items-layer-pulse .page-item-outline {
  stroke-width: 3px;
  filter: drop-shadow(0 0 5px rgba(231, 198, 158, 0.45));
  animation: page-item-outline-intro 2.4s ease-out 1;
}

.page-item-outline {
  fill: rgba(196, 149, 106, 0);
  stroke: rgba(231, 198, 158, 0);
  stroke-width: 0px;
  vector-effect: non-scaling-stroke;
  stroke-linejoin: round;
  paint-order: stroke fill markers;
  cursor: pointer;
  pointer-events: all;
  transition: fill 0.18s ease, stroke 0.18s ease, stroke-width 0.18s ease;
}

.page-item-marker.active .page-item-outline,
.page-item-outline:hover {
  fill: rgba(196, 149, 106, 0.14);
  stroke: rgba(231, 198, 158, 0.88);
  stroke-width: 1.5px;
}

@keyframes page-item-outline-intro {
  0%,
  16% {
    fill: rgba(231, 198, 158, 0);
    stroke: rgba(231, 198, 158, 0.92);
    stroke-width: 3px;
  }
  58% {
    fill: rgba(231, 198, 158, 0);
    stroke: rgba(231, 198, 158, 0.38);
    stroke-width: 1.5px;
  }
  100% {
    fill: rgba(196, 149, 106, 0);
    stroke: rgba(231, 198, 158, 0);
    stroke-width: 0px;
  }
}

.page-item-create-trigger {
  position: absolute;
  top: 8px;
  left: 8px;
  z-index: 11;
  min-height: 40px;
  padding: 0.35rem 0.75rem;
  background: rgba(30, 26, 22, 0.78);
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--text);
  font-size: 0.82rem;
  cursor: pointer;
  pointer-events: auto;
  opacity: 0.7;
  transition: opacity 0.2s ease, background 0.2s ease;
}

.page-slot:hover .page-item-create-trigger,
.page-item-create-trigger:focus {
  opacity: 1;
}

.page-item-create-trigger:hover {
  background: rgba(53, 47, 40, 0.98);
}

.page-items-draw-surface {
  position: absolute;
  inset: 0;
  cursor: crosshair;
  pointer-events: auto;
}

.page-items-draw-loupe {
  position: absolute;
  width: 160px;
  height: 160px;
  border: 2px solid rgba(231, 198, 158, 0.95);
  border-radius: 50%;
  background-color: rgba(21, 18, 15, 0.85);
  background-repeat: no-repeat;
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.34);
  overflow: hidden;
  pointer-events: none;
  z-index: 3;
}

.page-items-draw-loupe.hidden {
  display: none;
}

.page-items-draw-loupe::after {
  content: '';
  position: absolute;
  left: 50%;
  top: 50%;
  width: 10px;
  height: 10px;
  border: 1px solid rgba(255, 255, 255, 0.72);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  background: rgba(255, 255, 255, 0.12);
  box-shadow: 0 0 0 999px rgba(255, 255, 255, 0.02);
}

.page-items-draw-anchor {
  position: absolute;
  width: 20px;
  height: 20px;
  border: 2px solid rgba(231, 198, 158, 0.98);
  border-radius: 50%;
  background: rgba(24, 20, 17, 0.28);
  box-shadow: 0 0 0 1px rgba(19, 16, 13, 0.55), 0 0 12px rgba(231, 198, 158, 0.35);
  transform: translate(-50%, -50%);
  pointer-events: none;
  z-index: 4;
}

.page-items-draw-anchor.hidden {
  display: none;
}

.page-items-draw-anchor::before,
.page-items-draw-anchor::after {
  content: '';
  position: absolute;
  left: 50%;
  top: 50%;
  background: rgba(255, 255, 255, 0.95);
  transform: translate(-50%, -50%);
}

.page-items-draw-anchor::before {
  width: 2px;
  height: 12px;
}

.page-items-draw-anchor::after {
  width: 12px;
  height: 2px;
}

.page-items-draw-hint {
  position: absolute;
  left: 50%;
  top: 12px;
  transform: translateX(-50%);
  padding: 0.35rem 0.7rem;
  background: rgba(24, 20, 17, 0.92);
  border: 1px solid rgba(231, 198, 158, 0.35);
  border-radius: 999px;
  color: var(--text);
  font-size: 0.78rem;
  white-space: nowrap;
}

.page-items-draw-ghost {
  position: absolute;
  border: 2px dashed rgba(231, 198, 158, 0.95);
  background: rgba(196, 149, 106, 0.16);
}

.page-items-draw-ghost.hidden {
  display: none;
}

/* Book Spine */
.book-spine {
  width: 12px;
  background: var(--spine);
  box-shadow: inset 2px 0 6px rgba(0,0,0,0.5), inset -2px 0 6px rgba(0,0,0,0.5);
  flex-shrink: 0;
}

/* Page placeholder (for missing images) */
.page-placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
  min-height: 350px;
  color: var(--text-muted);
  font-style: italic;
  font-size: 0.9rem;
  text-align: center;
  padding: 2rem;
}

/* Media pane (audio/video pages) */
.media-pane {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  justify-content: flex-start;
  gap: 0.75rem;
  width: 100%;
  height: 100%;
  padding: 1rem;
  box-sizing: border-box;
}
.media-display {
  flex: 1 1 auto;
  min-height: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: var(--bg-elev, #221c16);
  border-radius: 6px;
}
.media-display.media-display-placeholder svg { width: 60%; height: auto; opacity: 0.85; }
.media-display-image { max-width: 100%; max-height: 100%; object-fit: contain; }
.media-audio-player { width: 100%; }
.media-video-player {
  width: 100%;
  max-height: 65%;
  background: #000;
  border-radius: 6px;
}
.media-pane-video .media-display { display: none; }
.media-transcript {
  flex: 0 1 auto;
  max-height: 35%;
  overflow-y: auto;
  font-size: 0.92rem;
  line-height: 1.45;
  color: var(--text, #e8d9c4);
  background: var(--bg-elev, #221c16);
  border: 1px solid var(--border, #3a2d22);
  border-radius: 6px;
  padding: 0.6rem 0.8rem;
}
.media-transcript-empty { color: var(--text-muted, #9a8973); font-style: italic; }
.media-transcript-turn {
  margin-bottom: 0.45rem;
  padding: 0.2rem 0.35rem;
  border-radius: 4px;
  transition: background-color 0.18s ease;
}
.media-transcript-turn:last-child { margin-bottom: 0; }
.media-transcript-turn[data-start] {
  cursor: pointer;
}
.media-transcript-turn[data-start]:hover {
  background: var(--bg-elev2, rgba(196, 149, 106, 0.08));
}
.media-transcript-turn.is-current {
  background: rgba(196, 149, 106, 0.18);
  box-shadow: inset 3px 0 0 var(--accent, #c4956a);
  padding-left: 0.55rem;
}
.media-transcript-ts {
  display: inline-block;
  min-width: 3.4em;
  margin-right: 0.55rem;
  color: var(--text-muted, #9a8973);
  font-variant-numeric: tabular-nums;
  font-size: 0.78rem;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  user-select: none;
}
.media-transcript-turn.is-current .media-transcript-ts {
  color: var(--accent, #c4956a);
  font-weight: 600;
}
.media-transcript-speaker {
  color: var(--accent, #c4956a);
  font-weight: 600;
}
.media-transcript-plain { white-space: pre-wrap; }
.media-error {
  color: var(--danger, #c46a6a);
  font-size: 0.9rem;
  padding: 0.5rem;
}
.media-speaker-review {
  margin-top: 0.75rem;
  padding-top: 0.65rem;
  border-top: 1px solid var(--border, #3a2d22);
  font-size: 0.88rem;
}
.media-speaker-review-heading {
  color: var(--text-muted, #9a8973);
  font-weight: 600;
  margin-bottom: 0.4rem;
}
.media-speaker-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
  padding: 0.25rem 0;
}
.media-speaker-label {
  color: var(--accent, #c4956a);
  font-weight: 600;
}
.media-speaker-status {
  color: var(--text-muted, #9a8973);
  flex: 1 1 auto;
  min-width: 100px;
}
.media-speaker-btn {
  font-size: 0.85rem;
  padding: 0.2rem 0.55rem;
  border-radius: 4px;
  border: 1px solid var(--border, #3a2d22);
  background: transparent;
  color: var(--text, #e8d9c4);
  cursor: pointer;
}
.media-speaker-btn:hover { background: var(--bg-elev, #221c16); }
.media-speaker-btn-primary {
  background: var(--accent, #c4956a);
  color: var(--bg, #1a1612);
  border-color: var(--accent, #c4956a);
}
.media-speaker-btn-quiet { opacity: 0.75; }
.media-speaker-form {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  width: 100%;
  margin-top: 0.35rem;
  flex-wrap: wrap;
}
.media-speaker-name-input {
  flex: 1 1 140px;
  min-width: 140px;
  padding: 0.25rem 0.5rem;
  font-size: 0.88rem;
  border-radius: 4px;
  border: 1px solid var(--border, #3a2d22);
  background: var(--bg-elev, #221c16);
  color: var(--text, #e8d9c4);
}
.media-speaker-form-status {
  font-size: 0.82rem;
  color: var(--text-muted, #9a8973);
  flex-basis: 100%;
}
.media-speaker-typeahead { flex-direction: column; align-items: stretch; gap: 0.35rem; }
.media-speaker-typeahead-input-wrap {
  display: flex;
  gap: 0.4rem;
  align-items: center;
}
.media-speaker-typeahead-input-wrap .media-speaker-name-input { flex: 1 1 auto; }
.media-speaker-typeahead-results {
  max-height: 200px;
  overflow-y: auto;
  border: 1px solid var(--border, #3a2d22);
  border-radius: 4px;
  background: var(--bg-elev, #221c16);
}
.media-speaker-typeahead-results:empty { display: none; }
.media-speaker-typeahead-row {
  display: flex;
  flex-direction: column;
  gap: 0.1rem;
  padding: 0.4rem 0.6rem;
  cursor: pointer;
  border-bottom: 1px solid var(--border, #3a2d22);
}
.media-speaker-typeahead-row:last-child { border-bottom: 0; }
.media-speaker-typeahead-row.is-active {
  background: var(--accent, #c4956a);
  color: var(--bg, #1a1612);
}
.media-speaker-typeahead-row.is-active .media-speaker-typeahead-sub { color: rgba(26, 22, 18, 0.7); }
.media-speaker-typeahead-row.is-create { font-style: italic; }
.media-speaker-typeahead-row.is-create .media-speaker-typeahead-label { color: var(--accent, #c4956a); }
.media-speaker-typeahead-row.is-create.is-active .media-speaker-typeahead-label { color: var(--bg, #1a1612); }
.media-speaker-typeahead-label { font-weight: 600; font-size: 0.9rem; }
.media-speaker-typeahead-sub { font-size: 0.78rem; color: var(--text-muted, #9a8973); }

/* Thumbnail Strip */
#thumbnail-strip-container {
  background: var(--bg-surface);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 0.5rem 0;
}

#thumbnail-strip {
  display: flex;
  gap: 4px;
  overflow-x: auto;
  padding: 0.25rem 1rem;
  scroll-behavior: smooth;
}

.thumb-item {
  flex-shrink: 0;
  width: 50px;
  height: 65px;
  border: 2px solid transparent;
  border-radius: 3px;
  overflow: hidden;
  cursor: pointer;
  transition: border-color 0.2s;
  background: var(--bg);
}

.thumb-item:hover {
  border-color: var(--text-muted);
}

.thumb-item.active {
  border-color: var(--accent);
}

.thumb-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.thumb-item .thumb-sprite-cell {
  width: 100%;
  height: 100%;
  background-repeat: no-repeat;
  background-color: var(--bg);
}

.thumb-item .thumb-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.55rem;
  color: var(--text-muted);
}

/* Thumbnail Group Indicators */
.thumb-grouped {
  position: relative;
}

.thumb-grouped::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--group-color, var(--accent));
}

.thumb-group-start::after {
  border-radius: 2px 0 0 2px;
  left: 2px;
}

.thumb-group-end::after {
  border-radius: 0 2px 2px 0;
  right: 2px;
}

.thumb-group-start.thumb-group-end::after {
  border-radius: 2px;
  left: 2px;
  right: 2px;
}

.thumb-grouped:hover {
  border-color: var(--group-color, var(--text-muted));
}

.thumb-sequence {
  position: relative;
}

.thumb-sequence::before {
  content: '';
  position: absolute;
  top: -2px;
  left: 2px;
  right: 2px;
  height: 3px;
  background: var(--sequence-color, #7ea8c4);
  border-radius: 2px;
  z-index: 3;
}

.thumb-sequence-start::before {
  left: 4px;
}

.thumb-sequence-end::before {
  right: 4px;
}

.thumb-sequence:hover {
  border-color: var(--sequence-color, var(--text-muted));
}

/* Clickable page images */
.page-slot img {
  cursor: pointer;
}

/* Fullscreen Lightbox */
#lightbox {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.95);
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
}

#lightbox.hidden {
  display: none !important;
}

#lightbox-img {
  max-width: 92vw;
  max-height: 90vh;
  object-fit: contain;
  border-radius: 4px;
  box-shadow: 0 0 60px rgba(0,0,0,0.6);
}

.page-items-lightbox-layer {
  z-index: 205;
}

.lightbox-close {
  position: absolute;
  top: 1rem;
  right: 1.5rem;
  background: none;
  border: none;
  color: #fff;
  font-size: 2.5rem;
  cursor: pointer;
  z-index: 210;
  opacity: 0.7;
  transition: opacity 0.2s;
  line-height: 1;
}

.lightbox-close:hover {
  opacity: 1;
}

.lightbox-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(255,255,255,0.1);
  border: none;
  color: #fff;
  font-size: 3rem;
  width: 60px;
  height: 80px;
  border-radius: 8px;
  cursor: pointer;
  z-index: 210;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0.5;
  transition: opacity 0.2s, background 0.2s;
  line-height: 1;
}

.lightbox-nav:hover {
  opacity: 1;
  background: rgba(255,255,255,0.2);
}

.lightbox-prev-btn { left: 1rem; }
.lightbox-next-btn { right: 1rem; }

#lightbox-caption {
  position: absolute;
  bottom: 1rem;
  left: 50%;
  transform: translateX(-50%);
  color: rgba(255,255,255,0.7);
  font-size: 0.9rem;
  background: rgba(0,0,0,0.6);
  padding: 0.4rem 1rem;
  border-radius: 4px;
}

/* Lightbox version picker — vertical rail tucked inside the next-button */
#lightbox-versions {
  position: absolute;
  top: 50%;
  /* Clear the 60px-wide next-button at right:1rem, plus a small gap. */
  right: calc(1rem + 60px + 0.75rem);
  transform: translateY(-50%);
  display: flex;
  flex-direction: column;
  gap: 6px;
  max-height: 80vh;
  overflow-y: auto;
  z-index: 210;
  background: rgba(0, 0, 0, 0.55);
  padding: 0.5rem;
  border-radius: 6px;
}

#lightbox-versions.hidden {
  display: none;
}

.lightbox-version-btn {
  min-width: 56px;
  padding: 0.35rem 0.6rem;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: rgba(255, 255, 255, 0.85);
  border-radius: 4px;
  font-size: 0.78rem;
  font-family: inherit;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s;
  text-align: center;
}

.lightbox-version-btn:hover {
  background: rgba(255, 255, 255, 0.18);
}

.lightbox-version-btn.current {
  background: rgba(196, 149, 106, 0.35);
  border-color: var(--accent);
  color: #fff;
}

@media (max-width: 640px) {
  #lightbox-versions {
    top: auto;
    bottom: 3rem;
    right: 50%;
    transform: translateX(50%);
    flex-direction: row;
    max-width: 90vw;
    overflow-x: auto;
    overflow-y: visible;
    max-height: none;
  }
}

/* Page Action Menu Trigger */
.page-action-trigger {
  position: absolute;
  top: 8px;
  right: 8px;
  z-index: 10;
  width: 44px;
  height: 44px;
  background: rgba(30, 26, 22, 0.7);
  backdrop-filter: blur(6px);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 1.4rem;
  line-height: 1;
  cursor: pointer;
  opacity: 0.5;
  transition: opacity 0.2s, background 0.2s;
  display: flex;
  align-items: center;
  justify-content: center;
}

.page-slot:hover .page-action-trigger,
.page-action-trigger:focus {
  opacity: 1;
}

.page-action-trigger:hover {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
  opacity: 1;
}

/* Page Action Menu Dropdown (desktop) */
.page-action-dropdown {
  position: fixed;
  z-index: 352;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.5);
  min-width: 280px;
  max-width: 340px;
  max-height: 70vh;
  overflow-y: auto;
}

.page-action-dropdown.hidden {
  display: none;
}

/* Page Action Menu Header */
.page-action-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.5rem 0;
  color: var(--accent);
  font-size: 1rem;
  font-weight: normal;
}

.page-action-close {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 1.4rem;
  cursor: pointer;
  padding: 0.25rem;
  line-height: 1;
}

.page-action-close:hover {
  color: var(--text);
}

.page-action-back {
  background: none;
  border: none;
  color: var(--accent);
  font-size: 0.9rem;
  cursor: pointer;
  padding: 0.25rem 0.5rem;
}

.page-action-back:hover {
  text-decoration: underline;
}

/* Version Lineage Bar */
.page-action-lineage {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 0.5rem 0;
  flex-wrap: wrap;
}

.page-action-lineage-pill {
  padding: 0.25rem 0.6rem;
  border-radius: 12px;
  font-size: 0.75rem;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text-muted);
  cursor: default;
  transition: background 0.2s, border-color 0.2s;
  font-family: inherit;
}

.page-action-lineage-pill.exists {
  color: var(--text);
  border-color: var(--text-muted);
  cursor: pointer;
}

.page-action-lineage-pill.exists:hover {
  border-color: var(--accent);
  background: rgba(196, 149, 106, 0.1);
}

.page-action-lineage-pill.primary {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
  font-weight: bold;
}

.page-action-lineage-pill.processing {
  border-color: var(--accent);
  color: var(--accent);
  animation: enhance-pulse-border 1.5s ease-in-out infinite;
}

@keyframes enhance-pulse-border {
  0%, 100% { border-color: var(--border); }
  50% { border-color: var(--accent); }
}

.page-action-lineage-pill.empty {
  opacity: 0.4;
}

.page-action-lineage-arrow {
  color: var(--text-muted);
  font-size: 0.75rem;
  opacity: 0.5;
}

/* Divider */
.page-action-divider {
  border-top: 1px solid var(--border);
  margin: 0.25rem 0;
}

/* Quick Action Row (rotate) */
.page-action-quick-row {
  display: flex;
  gap: 8px;
  padding: 0.5rem 0;
}

.page-action-quick-btn {
  flex: 1;
  min-height: 44px;
  background: rgba(30, 26, 22, 0.6);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  font-size: 0.85rem;
  cursor: pointer;
  transition: background 0.2s, border-color 0.2s;
  font-family: inherit;
}

.page-action-quick-btn:hover {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

/* Action List Items */
.page-action-list {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.page-action-item {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 100%;
  min-height: 48px;
  padding: 0.5rem 0.75rem;
  background: none;
  border: none;
  border-radius: 8px;
  color: var(--text);
  font-size: 0.9rem;
  cursor: pointer;
  transition: background 0.15s;
  text-align: left;
  font-family: inherit;
}

.page-action-item:hover {
  background: rgba(196, 149, 106, 0.12);
}

.page-action-item-disabled {
  opacity: 0.6;
  cursor: default;
}

.page-action-icon {
  width: 24px;
  text-align: center;
  font-size: 1rem;
}

.page-action-danger {
  color: #d44;
}

.page-action-danger:hover {
  background: rgba(200, 40, 40, 0.15);
}

/* Superadmin: per-page / whole-book pipeline phase re-run menu */
.page-action-rerun {
  border-top: 1px solid var(--border);
  margin-top: 0.25rem;
  padding-top: 0.25rem;
}
.page-action-rerun > summary {
  list-style: none;
}
.page-action-rerun > summary::-webkit-details-marker {
  display: none;
}
.page-action-rerun-group {
  margin: 0.15rem 0 0.35rem;
}
.page-action-rerun-label {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-muted);
  padding: 0.25rem 0.75rem 0.1rem;
}
.page-action-rerun-item {
  min-height: 38px;
  padding-left: 1.25rem;
  font-size: 0.85rem;
}

/* Superadmin AI debug viewer (per-page re-run capture) */
.ai-debug-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10000;
  padding: 1rem;
}
.ai-debug-panel {
  background: var(--bg-card, #1a1612);
  border: 1px solid var(--border);
  border-radius: 10px;
  width: min(900px, 100%);
  max-height: 90vh;
  overflow-y: auto;
  padding: 1rem;
}
.ai-debug-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.5rem;
}
.ai-debug-header strong { flex: 1; }
.ai-debug-model { color: var(--text-muted); font-size: 0.8rem; }
.ai-debug-close {
  background: none; border: none; color: var(--text);
  font-size: 1.5rem; line-height: 1; cursor: pointer;
}
.ai-debug-section { margin-top: 0.75rem; }
.ai-debug-section-head {
  display: flex; align-items: center; justify-content: space-between;
  font-size: 0.8rem; color: var(--text-muted); margin-bottom: 0.25rem;
}
.ai-debug-copy {
  background: none; border: 1px solid var(--border); border-radius: 4px;
  color: var(--text); font-size: 0.75rem; padding: 0.1rem 0.5rem; cursor: pointer;
}
.ai-debug-pre {
  background: rgba(0, 0, 0, 0.3);
  border-radius: 6px;
  padding: 0.5rem;
  font-size: 0.72rem;
  line-height: 1.4;
  white-space: pre-wrap;
  word-break: break-word;
  max-height: 38vh;
  overflow-y: auto;
  margin: 0;
}

/* Enhance Review (inline in menu) */
.page-action-enhance-review {
  padding: 0.5rem 0;
}

.page-action-enhance-review-label {
  font-size: 0.8rem;
  color: var(--accent);
  margin-bottom: 0.5rem;
}

.page-action-enhance-review-btns {
  display: flex;
  gap: 6px;
}

.page-action-review-btn {
  flex: 1;
  min-height: 40px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: rgba(30, 26, 22, 0.6);
  color: var(--text);
  font-size: 0.8rem;
  cursor: pointer;
  font-family: inherit;
  transition: background 0.2s;
}

.page-action-accept {
  background: rgba(34, 120, 60, 0.6);
  border-color: rgba(34, 120, 60, 0.4);
  color: #fff;
}

.page-action-accept:hover {
  background: rgba(34, 140, 60, 0.9);
}

.page-action-reject {
  background: rgba(140, 30, 30, 0.6);
  border-color: rgba(140, 30, 30, 0.4);
  color: #fff;
}

.page-action-reject:hover {
  background: rgba(160, 30, 30, 0.9);
}

/* Enhancement variants list — per-variant actions (openai-restore tree) */
.page-action-enhance-variants {
  padding: 0.5rem 0;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.page-action-enhance-variants-label {
  font-size: 0.8rem;
  color: var(--accent);
  margin-bottom: 0.25rem;
}

.page-action-variant {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  padding: 0.4rem 0.5rem;
  background: rgba(30, 26, 22, 0.4);
  border: 1px solid var(--border);
  border-radius: 6px;
}

.page-action-variant-label {
  font-size: 0.8rem;
  color: var(--text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.page-action-variant-branch {
  color: var(--accent);
  opacity: 0.6;
  font-size: 0.9em;
  margin-right: 0.1rem;
}

.page-action-variant-btns {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.page-action-variant-failed .page-action-variant-label {
  color: #e08080;
}

.page-action-variant-rejected {
  opacity: 0.55;
}

.page-action-rejected-toggle {
  background: none;
  border: none;
  color: var(--accent);
  font-size: 0.78rem;
  text-decoration: underline;
  cursor: pointer;
  padding: 0.25rem 0;
  font-family: inherit;
  align-self: flex-start;
}

.page-action-refine-form {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  margin-top: 0.25rem;
}

.page-action-refine-input {
  width: 100%;
  padding: 0.5rem;
  background: rgba(15, 12, 10, 0.8);
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--text);
  font-family: inherit;
  font-size: 0.85rem;
  resize: vertical;
}

.page-action-cta {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.6rem 0.75rem;
  background: rgba(30, 26, 22, 0.4);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text);
  font-size: 0.82rem;
  cursor: default;
}

.page-action-cta[data-action] {
  cursor: pointer;
}

.page-action-cta-text {
  flex: 1;
}

/* Enhancement pulse animation for inline spinner */
.enhance-pulse-inline {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  animation: enhance-pulse-anim 1.2s ease-in-out infinite;
}

@keyframes enhance-pulse-anim {
  0%, 100% { opacity: 0.3; transform: scale(0.8); }
  50% { opacity: 1; transform: scale(1.2); }
}

/* Move/Delete dialogs inside menu */
.page-action-move-form {
  padding: 0.75rem 0;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.page-action-move-form label {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  color: var(--text);
  font-size: 0.85rem;
}

.page-action-move-form input {
  min-height: 40px;
  padding: 0.5rem;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text);
  font-size: 1rem;
}

.page-action-move-btn {
  min-height: 44px;
  border-radius: 8px;
}

.page-action-confirm-delete {
  padding: 0.75rem 0;
}

.page-action-confirm-delete p {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 1rem;
  line-height: 1.4;
}

.page-action-delete-btn {
  width: 100%;
  min-height: 44px;
  background: rgba(180, 30, 30, 0.8);
  border: 1px solid rgba(180, 30, 30, 0.5);
  border-radius: 8px;
  color: #fff;
  font-size: 0.9rem;
  cursor: pointer;
  font-family: inherit;
  transition: background 0.2s;
}

.page-action-delete-btn:hover {
  background: rgba(200, 30, 30, 1);
}

/* ===== Group Collapse/Expand ===== */

/* Collapse All / Expand All controls */
.thumb-group-controls {
  display: flex;
  flex-direction: column;
  gap: 2px;
  flex-shrink: 0;
  margin-right: 4px;
  align-self: center;
}

.thumb-group-ctrl-btn {
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 0.55rem;
  width: 20px;
  height: 20px;
  border-radius: 3px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  line-height: 1;
  transition: color 0.2s, border-color 0.2s;
}

.thumb-group-ctrl-btn:hover {
  color: var(--accent);
  border-color: var(--accent);
}

/* Collapse/expand chevron on group-start thumbnails */
.thumb-collapse-toggle {
  position: absolute;
  top: 1px;
  left: 1px;
  background: rgba(26, 22, 18, 0.8);
  border: none;
  color: var(--text-muted);
  font-size: 0.5rem;
  width: 14px;
  height: 14px;
  border-radius: 2px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  z-index: 5;
  line-height: 1;
  transition: color 0.2s, background 0.2s;
}

.thumb-collapse-toggle:hover {
  color: var(--accent);
  background: rgba(26, 22, 18, 0.95);
}

/* Collapsed group thumbnail */
.thumb-group-collapsed {
  position: relative;
  border-color: var(--group-color, var(--accent));
}

.thumb-group-collapsed img {
  opacity: 0.5;
}

.thumb-collapsed-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: rgba(26, 22, 18, 0.6);
  padding: 2px;
  text-align: center;
  pointer-events: none;
}

.thumb-collapsed-label {
  color: var(--group-color, var(--accent));
  font-size: 0.45rem;
  font-weight: 600;
  line-height: 1.2;
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
}

.thumb-collapsed-count {
  color: var(--text-muted);
  font-size: 0.4rem;
  margin-top: 1px;
}

/* Reorder mode */
.thumb-group-ctrl-btn.active {
  color: var(--accent);
  border-color: var(--accent);
  background: rgba(196, 149, 106, 0.15);
}

#thumbnail-strip.reorder-mode .thumb-item {
  cursor: grab;
}

#thumbnail-strip.reorder-mode .thumb-item:active {
  cursor: grabbing;
}

#thumbnail-strip.reorder-mode .thumb-item.dragging {
  opacity: 0.3;
}

#thumbnail-strip.reorder-mode .thumb-item.drop-before {
  box-shadow: -4px 0 0 0 var(--accent);
}

#thumbnail-strip.reorder-mode .thumb-item.drop-after {
  box-shadow: 4px 0 0 0 var(--accent);
}

/* Touch drag: suppress long-press context menu in reorder mode */
#thumbnail-strip.reorder-mode .thumb-item {
  -webkit-touch-callout: none;
  user-select: none;
}

/* Floating clone during touch drag */
.thumb-drag-clone {
  position: fixed;
  z-index: 10000;
  opacity: 0.8;
  pointer-events: none;
  border: 2px solid var(--accent);
  border-radius: 3px;
  background: var(--bg);
  overflow: hidden;
}

/* Group cover badge in book viewer */
.group-cover-badge {
  position: absolute;
  bottom: 28px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(26, 22, 18, 0.85);
  backdrop-filter: blur(6px);
  border: 1px solid var(--group-color, var(--border));
  border-left-width: 3px;
  padding: 0.4rem 0.8rem;
  border-radius: 4px;
  z-index: 10;
  display: flex;
  gap: 8px;
  align-items: center;
  pointer-events: none;
}

.group-cover-label {
  color: var(--group-color, var(--accent));
  font-size: 0.8rem;
  font-weight: 600;
}

.group-cover-count {
  color: var(--text-muted);
  font-size: 0.75rem;
}

/* Group people list in caption panel */
.group-people-list {
  margin-top: 0.75rem;
  padding-top: 0.5rem;
  border-top: 1px solid var(--border);
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.6;
}

.group-people-list strong {
  color: var(--text);
}

.group-people-list .person-link {
  color: var(--accent);
  text-decoration: none;
}

.group-people-list .person-link:hover {
  text-decoration: underline;
}

/* Admin tools section */
.admin-tools {
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--border);
}

.admin-section-title {
  padding: 0.75rem 1rem 0.25rem;
  color: var(--text-muted);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.btn-accent {
  background: var(--accent);
  color: var(--bg);
  border: none;
  padding: 0.5rem 1.25rem;
  border-radius: 4px;
  cursor: pointer;
  font-weight: 600;
  font-size: 0.85rem;
  transition: opacity 0.2s;
}

.btn-accent:hover { opacity: 0.85; }
.btn-accent:disabled { opacity: 0.5; cursor: default; }

/* Upload modal */
#upload-dropzone,
#pdf-upload-dropzone {
  border: 2px dashed var(--border);
  border-radius: 8px;
  padding: 2rem;
  text-align: center;
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s;
  margin-bottom: 1rem;
}

#upload-dropzone:hover,
#upload-dropzone.dragover,
#pdf-upload-dropzone:hover,
#pdf-upload-dropzone.dragover {
  border-color: var(--accent);
  background: rgba(196, 149, 106, 0.08);
}

.upload-hint {
  color: var(--text-muted);
  font-size: 0.8rem;
  margin-top: 0.25rem;
}

#upload-preview {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 1rem;
  max-height: 200px;
  overflow-y: auto;
}

.upload-preview-item {
  position: relative;
  width: 60px;
  height: 75px;
  border-radius: 4px;
  overflow: hidden;
  border: 1px solid var(--border);
}

.upload-preview-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.upload-preview-pdf {
  background: rgba(196, 149, 106, 0.15);
  display: flex;
  align-items: center;
  justify-content: center;
}

.upload-preview-pdf-badge {
  font-weight: bold;
  font-size: 1rem;
  color: var(--accent);
  letter-spacing: 0.05em;
}

.upload-preview-name {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: rgba(0,0,0,0.7);
  color: #fff;
  font-size: 0.45rem;
  padding: 1px 2px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.upload-preview-remove {
  position: absolute;
  top: 0;
  right: 0;
  background: rgba(0,0,0,0.6);
  color: #fff;
  border: none;
  cursor: pointer;
  font-size: 0.7rem;
  width: 16px;
  height: 16px;
  line-height: 1;
  display: flex;
  align-items: center;
  justify-content: center;
}

.upload-position-label {
  display: block;
  margin-bottom: 1rem;
  font-size: 0.85rem;
}

.upload-position-label input {
  width: 60px;
  margin: 0 0.25rem;
}

.upload-context-label {
  display: block;
  margin-bottom: 0.35rem;
  font-size: 0.85rem;
}

.upload-context-input {
  display: block;
  width: 100%;
  box-sizing: border-box;
  margin-bottom: 1rem;
  padding: 0.5rem;
  font: inherit;
  font-size: 0.85rem;
  color: var(--text, #e8e2d8);
  background: var(--bg-elevated, #221d18);
  border: 1px solid var(--border, #3a332b);
  border-radius: 4px;
  resize: vertical;
}

/* Give the Upload button room so it doesn't butt against the PDF hint above. */
#upload-submit {
  margin-top: 1rem;
}

#upload-pdf-hint {
  margin-bottom: 0;
}

/* Pipeline progress */
#pipeline-steps {
  margin: 1rem 0;
}

.pipeline-step {
  padding: 0.3rem 0;
  color: var(--text-muted);
  font-size: 0.85rem;
}

.pipeline-step.done {
  color: #8bb58a;
}

.pipeline-step.active {
  color: var(--accent);
  font-weight: 600;
}

.pipeline-icon {
  display: inline-block;
  width: 1.2em;
  text-align: center;
}

.pipeline-step.active .pipeline-icon {
  animation: pulse 1s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

/* ===== Portrait / Mobile Mode ===== */
.portrait-mode #page-right,
.portrait-mode .book-spine {
  display: none;
}

.portrait-mode #book-container {
  padding: 0.75rem 0.5rem;
  gap: 0.25rem;
  min-height: auto;
}

.portrait-mode #book-spread {
  max-width: 100%;
}

.portrait-mode .page-slot {
  height: var(--book-height, 65vh);
}

.portrait-mode .nav-arrow {
  width: 32px;
  height: 60px;
  font-size: 1.8rem;
  border-radius: 6px;
}

.portrait-mode .page-number {
  left: 50% !important;
  right: auto !important;
  transform: translateX(-50%);
}

.portrait-mode .thumb-item {
  width: 40px;
  height: 52px;
}

.portrait-mode #thumbnail-strip {
  padding: 0.25rem 0.5rem;
}

/* ===== Cover Active — hide right columns in panels below the spread ===== */
.cover-active #caption-panel,
.cover-active #comments-panel,
.cover-active #face-strip-panel {
  display: block;
}

.cover-active #caption-right,
.cover-active #comments-right,
.cover-active #face-strip-right {
  display: none;
}

/* ===== Cover Page (Page 0) ===== */

.cover-page {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow-y: auto;
  background: var(--bg);
  height: var(--book-height, 55vh);
}

.cover-page-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.5rem;
  padding: 2rem 1.5rem;
  max-width: 700px;
  width: 100%;
}

.cover-page-image img {
  max-height: 38vh;
  max-width: 100%;
  border-radius: 8px;
  box-shadow: 0 4px 24px rgba(0,0,0,0.5);
  object-fit: contain;
}

.cover-page-title {
  font-size: 2rem;
  color: var(--accent);
  text-align: center;
  margin: 0;
  line-height: 1.2;
}

.cover-page-author {
  color: var(--text-muted);
  font-style: italic;
  text-align: center;
  margin: 0;
  font-size: 1.1rem;
}

.cover-page-description {
  max-width: 600px;
  color: var(--text);
  line-height: 1.6;
  text-align: center;
  font-size: 0.95rem;
}

.cover-page-description p {
  margin: 0.4em 0;
}

.cover-loading {
  color: var(--text-muted);
  text-align: center;
}

/* Key People */
.cover-page-people {
  width: 100%;
  max-width: 600px;
}

.cover-page-people-heading {
  color: var(--text-muted);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  text-align: center;
  margin: 0 0 0.75rem;
}

.cover-page-people-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: center;
}

.cover-page-person-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.35rem;
  cursor: pointer;
  width: 80px;
  transition: opacity 0.15s;
}

.cover-page-person-card:hover {
  opacity: 0.8;
}

.cover-page-person-img {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--accent);
  background: var(--bg-surface);
}

.cover-page-person-placeholder {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  border: 2px solid var(--accent);
  background: var(--bg-surface);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  color: var(--accent);
  font-weight: 600;
}

.cover-page-person-name {
  font-size: 0.75rem;
  color: var(--text);
  text-align: center;
  line-height: 1.2;
  word-break: break-word;
}

/* Cover thumbnail in strip */
.thumb-cover {
  border: 2px solid var(--accent) !important;
  position: relative;
  flex-shrink: 0;
}

.thumb-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 2px;
}

.thumb-cover-label {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  text-align: center;
  font-size: 0.6rem;
  color: #fff;
  background: rgba(0,0,0,0.6);
  padding: 1px 0;
}

/* ===== Simple Mode ===== */

.simple-mode {
  background:
    radial-gradient(circle at top, rgba(196, 149, 106, 0.14), transparent 36%),
    linear-gradient(180deg, rgba(26, 22, 18, 0.96), rgba(22, 18, 15, 1));
}

.simple-mode #app-header {
  position: sticky;
  top: 0;
  z-index: 70;
  padding: 1rem 1.25rem;
  background: rgba(26, 22, 18, 0.92);
  backdrop-filter: blur(12px);
}

.simple-mode .header-book-title {
  flex: 1 1 auto;
  min-width: 0;
  font-size: 1.25rem;
}

.simple-mode .header-actions-primary,
.simple-mode .header-menu {
  flex: 0 0 auto;
}

.simple-mode #book-container {
  width: 100%;
  max-width: 1120px;
  margin: 1rem auto 0;
  padding: 0 1rem;
  min-height: auto;
}

.simple-mode #book-spread {
  flex: 1 1 auto;
  min-width: 0;
  width: auto;
  border: 1px solid rgba(196, 149, 106, 0.18);
  border-radius: 24px;
  box-shadow: 0 28px 60px rgba(0,0,0,0.26);
}

.simple-mode .page-slot {
  min-height: 420px;
}

.simple-mode .nav-arrow {
  width: 58px;
  height: 88px;
  border-radius: 18px;
  background: rgba(42, 36, 32, 0.94);
}

.simple-mode .nav-arrow:hover {
  background: rgba(53, 47, 40, 0.98);
}

.simple-mode .page-number {
  left: 50% !important;
  right: auto !important;
  bottom: 12px;
  transform: translateX(-50%);
  padding: 0.35rem 0.8rem;
  border-radius: 999px;
  font-size: 0.82rem;
}

.simple-mode .page-number.simple-page-number-trigger {
  cursor: pointer;
  box-shadow: 0 0 0 1px rgba(196, 149, 106, 0.22);
  transition: box-shadow 0.18s, color 0.18s, background 0.18s;
}

.simple-mode .page-number.simple-page-number-trigger:hover,
.simple-mode .page-number.simple-page-number-trigger:focus {
  color: var(--accent);
  background: rgba(26,22,18,0.9);
  box-shadow: 0 0 0 1px rgba(196, 149, 106, 0.45);
}

.simple-mode .cover-page {
  background: transparent;
}

.simple-mode .cover-page-inner {
  padding: 2.5rem 1.75rem;
}

.simple-mode .cover-page-title {
  font-size: 2.5rem;
}

.simple-mode .cover-page-description {
  font-size: 1rem;
}

@media (max-width: 900px) {
  .simple-mode #book-container {
    padding: 0 0.75rem;
  }

  .simple-mode .nav-arrow {
    width: 48px;
    height: 80px;
    border-radius: 14px;
  }
}

@media (max-width: 760px) {
  .simple-mode #app-header {
    padding: 0.75rem;
  }

  .simple-mode .header-actions {
    flex-wrap: wrap;
    justify-content: flex-end;
    gap: 0.5rem;
  }

  .simple-mode #book-container {
    margin-top: 0.75rem;
    padding: 0 0.75rem;
  }

  .simple-mode .nav-arrow {
    width: 42px;
    height: 68px;
    border-radius: 14px;
  }

  .simple-mode .cover-page-title {
    font-size: 1.9rem;
  }
}