/* ═══════════════════════════════════════════════════════════════
   Demo Visualizer CSS — Ported from _kestrel_GUI/visualizer.css
   Scoped under .gui-container to avoid conflicts with site styles
   ═══════════════════════════════════════════════════════════════ */

/* ── Theme Variables ── */
.gui-container {
  --bg: #0b0c0f;
  --panel: #111318;
  --muted: #8a9099;
  --text: #e7e9ee;
  --brand: #4aa3ff;
  --ok: #2ecc71;
  --warn: #f39c12;
  --bad: #e74c3c;
  --card: #161922;
  --card-border: #222634;
  --chip: #1d2230;

  background: var(--bg);
  color: var(--text);
  font: 14px/1.35 system-ui, Segoe UI, Roboto, Helvetica, Arial, sans-serif;
}

.gui-container * {
  box-sizing: border-box;
}

/* ── Demo Viewport ── */
#demo-viewport {
  height: clamp(800px, 92vh, 1200px);
  width: calc(100vw - 80px);
  margin: 40px auto;
  border-radius: 20px;
  overflow: hidden;
  box-shadow: 0 40px 100px rgba(0, 0, 0, 0.4);
  display: flex;
  flex-direction: column;
  background: var(--bg);
  position: relative;
  border: 1px solid #1d2230;
}

/* ── App Body (sidebar + main) ── */
.gui-container .app-body {
  display: flex;
  flex: 1 1 auto;
  min-height: 0;
}

/* ── Sidebar ── */
.gui-container header.gui-sidebar {
  position: relative;
  z-index: 5;
  width: 360px;
  flex: 0 0 360px;
  height: 100%;
  background: linear-gradient(180deg, rgba(17, 19, 24, .95), rgba(17, 19, 24, .85));
  backdrop-filter: blur(8px);
  border-right: 1px solid #1d2230;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.gui-container .wrap {
  max-width: none;
  margin: 0;
  padding: 16px;
  height: 100%;
  display: flex;
  flex-direction: column;
  gap: 12px;
  overflow: hidden;
}

.gui-container .spacer {
  flex: 0 0 auto;
}

.gui-container header.gui-sidebar h1 {
  font-size: 20px;
  margin: 0 0 8px;
  font-weight: 700;
  letter-spacing: .2px;
  color: var(--text);
}

/* ── Toolbar ── */
.gui-container .toolbar {
  display: flex;
  flex-direction: column;
  gap: 10px;
  flex: 1 1 auto;
  min-height: 0;
  overflow: hidden;
}

.gui-container .toolbar-row {
  display: flex;
  gap: 10px;
  align-items: center;
  flex-wrap: wrap;
}

.gui-container .toolbar-row.actions {
  flex-direction: column;
  align-items: stretch;
  flex: 0 0 auto;
}

.gui-container .actions-secondary-row {
  display: flex;
  gap: 6px;
}
.gui-container .actions-secondary-row button {
  white-space: nowrap;
  font-size: 13px;
}

.gui-container .toolbar-row.filters {
  flex-direction: column;
  align-items: stretch;
  flex: 0 0 auto;
}

/* ── Buttons, Inputs, Selects ── */
.gui-container button,
.gui-container select,
.gui-container input[type="text"],
.gui-container input[type="search"],
.gui-container input[type="number"] {
  background: #0e1117;
  color: var(--text);
  border: 1px solid #2a3040;
  border-radius: 8px;
  height: 36px;
  padding: 0 12px;
  outline: none;
  transition: border-color .15s ease, background .15s ease;
  font-size: inherit;
  font-family: inherit;
}

.gui-container button {
  cursor: pointer;
  background: #173253;
  border-color: #214c7d;
}

.gui-container button:hover {
  background: #1c3a62;
  border-color: #2b5f9e;
}

.gui-container button.primary {
  background: #1d5aa8;
  border-color: #2b6ec8;
}

.gui-container button.primary:hover {
  background: #1f63b8;
  border-color: #3a84e6;
}

.gui-container button[disabled] {
  opacity: .6;
  cursor: not-allowed;
}

/* ── Help Tip ── */
.gui-container .help-tip {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 18px;
  height: 18px;
  margin-left: 8px;
  border-radius: 50%;
  background: #0e1117;
  border: 1px solid #2a3040;
  color: #a9c9ee;
  font-size: 12px;
  line-height: 1;
}

/* ── Filter Panel ── */
.gui-container .filter-panel {
  display: flex;
  gap: 10px;
  align-items: center;
  flex-wrap: wrap;
  padding: 6px 8px;
  border: 1px solid #1d2230;
  border-radius: 10px;
  background: #0e1117;
  width: 100%;
}

.gui-container .filter-panel .filter-title {
  width: 100%;
  text-align: center;
  color: var(--muted);
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .5px;
}

.gui-container .filter-panel .muted {
  color: var(--text);
}

.gui-container .filter-divider {
  width: 100%;
  height: 1px;
  background: #1d2230;
  margin: 2px 0;
}

.gui-container .filter-conf-row {
  width: 100%;
  justify-content: center;
}

.gui-container .filter-sort-row {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 100%;
}
.gui-container .filter-sort-label {
  font-size: 12px;
  white-space: nowrap;
  flex-shrink: 0;
}
.gui-container .filter-sort-row select {
  flex: 1;
  height: 30px;
  font-size: 12px;
}

.gui-container .filter-panel input[type="search"] {
  flex: 1 1 100%;
  width: 100%;
}

/* ── Folder Tree ── */
.gui-container .folder-tree-wrap {
  border-top: 1px solid #1d2230;
  padding-top: 8px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  flex: 1 1 auto;
  min-height: 0;
  overflow: hidden;
  max-width: 100%;
}

.gui-container .folder-tree-header {
  display: flex;
  align-items: center;
  gap: 6px;
}

.gui-container .folder-tree-header .tree-title {
  font-size: 12px;
  color: var(--muted);
  letter-spacing: .3px;
  flex: 1 1 auto;
}

.gui-container .folder-tree-header button {
  padding: 2px 7px;
  font-size: 11px;
  height: auto;
}

.gui-container #folderTree {
  flex: 1 1 auto;
  min-height: 0;
  max-height: none;
  overflow-x: hidden;
  overflow-y: auto;
  background: #0a0d12;
  border: 1px solid #1d2230;
  border-radius: 8px;
  padding: 4px 2px;
}

.gui-container .tree-node-row {
  display: flex;
  align-items: center;
  gap: 3px;
  padding: 2px 5px;
  border-radius: 4px;
  cursor: default;
  min-height: 20px;
}
.gui-container .tree-node-row:hover { background: rgba(255,255,255,.04); }

.gui-container .tree-arrow {
  flex: 0 0 12px;
  width: 12px;
  font-size: 9px;
  text-align: center;
  line-height: 1;
  cursor: pointer;
  color: #6a7585;
  user-select: none;
  transition: transform .12s;
}
.gui-container .tree-arrow.open { transform: rotate(90deg); }
.gui-container .tree-arrow.leaf { visibility: hidden; cursor: default; }

.gui-container .tree-icon { flex: 0 0 18px; font-size: 14px; text-align: center; }

.gui-container .tree-cb {
  flex: 0 0 13px;
  width: 13px;
  height: 13px;
  margin: 0;
  cursor: pointer;
  accent-color: #3a84e6;
}

.gui-container .tree-label {
  flex: 1 1 auto;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-size: 12px;
}

.gui-container .tree-count {
  margin-left: 8px;
  color: var(--muted);
  font-size: 12px;
  flex-shrink: 0;
}

.gui-container .tree-children {
  padding-left: 12px;
  border-left: 1px solid #1e2840;
  margin-left: 8px;
}

.gui-container .tree-node-row.analyzed-full .tree-label {
  color: var(--ok);
  font-weight: 700;
}

/* ── Sidebar Footer ── */
.gui-container .sidebar-footer {
  display: flex;
  gap: 6px;
  align-items: center;
  justify-content: flex-start;
  flex-wrap: wrap;
  flex: 0 0 auto;
}

.gui-container .sidebar-footer button {
  height: 28px;
  font-size: 12px;
  padding: 0 10px;
  border-radius: 7px;
}

.gui-container #zoomOut,
.gui-container #zoomIn {
  width: 28px;
  height: 28px;
  min-width: 28px;
  border-radius: 50%;
  padding: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  font-weight: 600;
  line-height: 1;
  flex-shrink: 0;
}

/* ── Main Area ── */
.gui-container .gui-main {
  max-width: none;
  flex: 1 1 auto;
  min-width: 0;
  height: 100%;
  overflow: auto;
  position: relative;
}

.gui-container #mainZoom {
  transform-origin: top left;
  width: 100%;
  height: 100%;
}

/* ── Scene Grid ── */
.gui-container .grid {
  display: grid;
  gap: 12px;
  padding: 16px;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
}

/* ── Scene Card ── */
.gui-container .card {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: 12px;
  overflow: clip;
  display: flex;
  flex-direction: column;
  cursor: pointer;
  content-visibility: auto;
  contain-intrinsic-size: auto 280px;
}

.gui-container .card:hover {
  border-color: #3a4a6a;
}

.gui-container .card.selected {
  background: #1a2540 !important;
  border-color: #3a84e6 !important;
  outline: 2px solid rgba(58, 132, 230, .5);
}

.gui-container .card.selected:hover {
  background: #1f2d4e !important;
}

.gui-container .card.focused {
  outline: 2px solid rgba(58, 132, 230, .7);
  outline-offset: 2px;
  box-shadow: 0 0 12px rgba(58, 132, 230, .3);
}

/* Thumbnail */
.gui-container .thumb {
  aspect-ratio: 16/10;
  background: #0e1117;
  overflow: hidden;
  position: relative;
}

.gui-container .thumb img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
}

/* Thumbnail badges */
.gui-container .thumb .badge {
  position: absolute;
  top: 8px;
  left: 8px;
  background: #10293d;
  border: 1px solid #1d3e5e;
  color: #a9c9ee;
  padding: 4px 8px;
  border-radius: 999px;
  font-size: 12px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  box-shadow: 0 2px 6px rgba(0, 0, 0, .4);
}

.gui-container .thumb .badge.count {
  left: auto;
  right: 8px;
}

/* Card body */
.gui-container .card .body {
  padding: 10px 12px 14px;
  display: grid;
  gap: 6px;
}

.gui-container .card .body .meta {
  justify-content: center;
  gap: 14px;
}

/* Title row */
.gui-container .title-row {
  display: flex;
  align-items: center;
  gap: 8px;
}

.gui-container .title-row .title {
  flex: 1 1 auto;
  min-width: 0;
}

.gui-container .title {
  display: flex;
  gap: 6px;
  align-items: center;
  min-width: 0;
}

.gui-container .title i.folder-name {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  flex: 0 1 auto;
  min-width: 0;
  max-width: 9em;
  display: inline-block;
  vertical-align: middle;
  font-style: italic;
}

.gui-container .title .title-sep {
  flex-shrink: 0;
}

.gui-container .title b {
  flex-shrink: 0;
}

.gui-container .title .name {
  flex: 1 1 auto;
  min-width: 0;
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
}

.gui-container .title-badges {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--muted);
  font-size: 12px;
  flex-shrink: 0;
}

.gui-container .title-badges .score {
  background: #10293d;
  border: 1px solid #1d3e5e;
  color: #a9c9ee;
  padding: 1px 7px;
  border-radius: 999px;
}

.gui-container .title-score {
  font-size: 12px;
  flex-shrink: 0;
  color: #a9c9ee;
  background: #10293d;
  border: 1px solid #1d3e5e;
  padding: 1px 7px;
  border-radius: 999px;
}

.gui-container .title-count {
  font-size: 12px;
  flex-shrink: 0;
  color: var(--muted);
}

/* Meta row */
.gui-container .meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--muted);
  font-size: 12px;
  white-space: normal;
  gap: 8px;
  flex-wrap: wrap;
  padding-right: 2px;
}

.gui-container .meta > :first-child {
  flex: 1 1 auto;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
}

.gui-container .meta .score {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  background: #10293d;
  border: 1px solid #1d3e5e;
  color: #a9c9ee;
  padding: 2px 8px;
  border-radius: 999px;
  margin-left: auto;
}

/* Chips */
.gui-container .chips {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  min-width: 0;
}

.gui-container .chip {
  background: var(--chip);
  border: 1px solid #2a3040;
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 12px;
  color: #cbd2dc;
  display: inline-flex;
  align-items: center;
  max-width: 100%;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.gui-container .chip.badge {
  background: #10293d;
  border-color: #1d3e5e;
  color: #a9c9ee;
}

/* ── Folder Group Headers ── */
.gui-container .folder-group {
  margin-bottom: 4px;
}

.gui-container .folder-group-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 7px 14px;
  background: #161922;
  border: 1px solid #222634;
  border-radius: 8px;
  cursor: pointer;
  user-select: none;
  font-size: 13px;
  color: #cbd2dc;
  position: sticky;
  top: 0;
  z-index: 10;
}

.gui-container .folder-group-header:hover {
  background: #1d2230;
  border-color: #2a3040;
}

.gui-container .folder-group-toggle {
  font-size: 10px;
  flex-shrink: 0;
  transition: transform .15s;
  color: var(--muted);
}

.gui-container .folder-group-header.collapsed .folder-group-toggle {
  transform: rotate(-90deg);
}

.gui-container .folder-group-name {
  font-weight: 600;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  min-width: 0;
  flex: 0 1 auto;
  max-width: 320px;
}

.gui-container .folder-group-count {
  flex-shrink: 0;
  font-size: 12px;
}

.gui-container .folder-group-left-actions {
  display: flex;
  gap: 4px;
  flex-shrink: 0;
}

.gui-container .folder-group-right-actions {
  display: flex;
  gap: 4px;
  flex-shrink: 0;
}

.gui-container .culling-btn {
  margin-left: auto;
  padding: 3px 12px;
  font-size: 12px;
  background: #1a2540;
  color: #7eb8e0;
  border: 1px solid #2a3b5a;
  border-radius: 6px;
  cursor: pointer;
  white-space: nowrap;
  transition: background .15s, border-color .15s;
}
.gui-container .culling-btn:hover {
  background: #243456;
  border-color: #3a84e6;
  color: #b8daf0;
}

.gui-container .folder-group-body.hidden {
  display: none;
}

/* ── Multi-Select Action Bar ── */
.gui-container .select-action-bar {
  position: absolute;
  bottom: 28px;
  left: 50%;
  transform: translateX(-50%);
  background: #1d2230;
  border: 1px solid #3a84e6;
  border-radius: 12px;
  padding: 10px 18px;
  display: flex;
  gap: 14px;
  align-items: center;
  box-shadow: 0 6px 32px rgba(0, 0, 0, .6);
  z-index: 300;
  white-space: nowrap;
}

.gui-container .select-action-bar.hidden {
  display: none;
}

/* ── Rating Stars ── */
.gui-container .stars {
  display: flex;
  gap: 4px;
  align-items: center;
  user-select: none;
}

.gui-container .star {
  font-size: 16px;
  line-height: 1;
  cursor: pointer;
  color: #2a3040;
}

.gui-container .star.filled.auto {
  color: #6aa0ff;
}

.gui-container .stars .star.manual.filled { color: #f5c542; }
.gui-container .stars .star.auto.filled { color: #6aa0ff; }

/* ── Status Bar ── */
.gui-container .app-status-bar {
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 3px 14px;
  background: #111318;
  border-top: 1px solid #1d2230;
  font-size: 12px;
  color: var(--muted);
  z-index: 10;
  min-height: 26px;
}

.gui-container .app-status-bar .status {
  padding: 0;
  font-size: 12px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.gui-container .app-status-bar .version-badge {
  padding: 0;
  font-size: 11px;
  margin-left: auto;
  white-space: nowrap;
  color: var(--muted);
}

/* ── Dialog (Scene Viewer) ── */
.gui-container dialog {
  border: 1px solid #2a3040;
  background: var(--panel);
  color: var(--text);
  border-radius: 14px;
  overflow: hidden;
  padding: 0;
}

.gui-container dialog#sceneDlg {
  position: absolute;
  inset: 30px;
  width: auto;
  height: auto;
  max-width: none;
  max-height: none;
  z-index: 500;
}

/* Custom backdrop div (replaces native ::backdrop since we use dialog.show()) */
.gui-container .scene-dlg-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, .55);
  backdrop-filter: blur(2px);
  z-index: 499;
  border-radius: inherit;
  pointer-events: auto;
}
.gui-container .scene-dlg-backdrop.hidden { display: none; }

/* ═══ Filmstrip Scene View Layout ═══ */
.gui-container .scene-filmstrip-layout {
  display: flex;
  flex-direction: column;
  height: 100%;
  overflow: hidden;
}

/* ── TOP BAR ── */
.gui-container .scene-topbar {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 14px;
  background: #111318;
  border-bottom: 1px solid #1f2533;
  flex-shrink: 0;
  min-height: 44px;
}
.gui-container .scene-topbar-left {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-shrink: 0;
  min-width: 0;
}
.gui-container .scene-topbar-title {
  font-weight: 700;
  font-size: 14px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 300px;
}
.gui-container .scene-pencil-btn {
  background: none;
  border: 1px solid transparent;
  padding: 2px 6px;
  font-size: 13px;
  cursor: pointer;
  border-radius: 6px;
  height: auto;
  color: var(--muted);
  transition: color .15s, border-color .15s;
}
.gui-container .scene-pencil-btn:hover {
  color: var(--text);
  border-color: #2a3040;
  background: #1d2230;
}
.gui-container .scene-rename-inline {
  display: flex;
  align-items: center;
  gap: 4px;
}
.gui-container .scene-rename-inline input {
  height: 28px;
  font-size: 13px;
  width: 200px;
  padding: 0 8px;
}
.gui-container .scene-rename-inline button {
  height: 28px;
  padding: 0 8px;
  font-size: 13px;
}

/* Tags area */
.gui-container .scene-topbar-tags {
  display: flex;
  align-items: center;
  gap: 6px;
  flex: 1 1 auto;
  min-width: 0;
  overflow-x: auto;
  flex-wrap: nowrap;
  scrollbar-width: none;
}
.gui-container .scene-topbar-tags::-webkit-scrollbar { display: none; }
.gui-container .scene-topbar-tags .chip {
  flex-shrink: 0;
}
.gui-container .scene-topbar-tags .scene-tag-label {
  color: var(--muted);
  font-size: 11px;
  font-weight: 600;
  flex-shrink: 0;
  white-space: nowrap;
}
.gui-container .scene-topbar-tags .scene-tag-sep {
  width: 1px;
  height: 16px;
  background: #2a3040;
  flex-shrink: 0;
}
.gui-container .scene-chip-add {
  cursor: pointer;
  background: transparent;
  border: 1px dashed #3a84e6;
  color: #6aa0ff;
  border-radius: 999px;
  padding: 2px 8px;
  font-size: 11px;
  flex-shrink: 0;
  height: auto;
  line-height: 1.3;
  white-space: nowrap;
}
.gui-container .scene-chip-add:hover { background: #1a2a44; }
.gui-container .scene-topbar-tags .chip-x {
  margin-left: 5px;
  color: var(--muted);
  cursor: pointer;
  transition: color .15s;
}
.gui-container .scene-topbar-tags .chip-x:hover { color: #ff4d4f; }

/* Chip input for adding tags */
.gui-container .chip-input-wrap {
  display: inline-flex;
  align-items: center;
  background: #1a2a44;
  border: 1px solid var(--brand);
  border-radius: 999px;
  padding: 1px 4px 1px 8px;
  margin-left: 4px;
}
.gui-container .chip-input {
  background: transparent;
  border: none;
  color: #fff;
  font-size: 12px;
  outline: none;
  width: 100px;
  height: auto;
}
.gui-container .chip-commit-btn {
  background: var(--brand);
  border: none;
  color: #fff;
  border-radius: 50%;
  width: 18px;
  height: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 10px;
  margin-left: 4px;
  padding: 0;
  min-width: 0;
}
.gui-container .chip-commit-btn:hover { background: #56afff; }

/* Topbar right */
.gui-container .scene-topbar-right {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-shrink: 0;
}
.gui-container .scene-shortcut-btn {
  background: none;
  border: 1px solid transparent;
  padding: 2px 8px;
  font-size: 16px;
  cursor: pointer;
  border-radius: 6px;
  height: auto;
  color: var(--muted);
}
.gui-container .scene-shortcut-btn:hover {
  color: var(--text);
  border-color: #2a3040;
  background: #1d2230;
}

/* ── Shortcut Legend ── */
.gui-container .scene-shortcut-legend {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 5px 14px;
  background: rgba(74,163,255,0.06);
  border-bottom: 1px solid #1f2533;
  font-size: 11px;
  color: var(--muted);
  flex-shrink: 0;
  flex-wrap: wrap;
}
.gui-container .scene-shortcut-legend kbd {
  display: inline-block;
  background: #1d2230;
  border: 1px solid #2a3040;
  border-radius: 4px;
  padding: 1px 5px;
  font-size: 10px;
  font-family: inherit;
  color: #a9c9ee;
  margin: 0 2px;
}

/* ── CENTER: Dual Previews ── */
.gui-container .scene-main {
  flex: 1 1 auto;
  display: flex;
  flex-direction: column;
  min-height: 0;
  overflow: hidden;
}
.gui-container .scene-previews {
  flex: 1 1 auto;
  display: flex;
  gap: 12px;
  padding: 8px 14px 4px;
  min-height: 0;
}
.gui-container #scenePreviewCrop {
  height: 100%;
  aspect-ratio: 1 / 1;
  flex: 0 0 auto;
}
.gui-container #scenePreviewExport {
  flex: 1 1 auto;
  min-width: 0;
}
.gui-container .scene-preview-panel {
  display: flex;
  flex-direction: column;
  min-height: 0;
  border: 1px solid #1f2533;
  border-radius: 10px;
  background: #0e1117;
  overflow: hidden;
  position: relative;
}
.gui-container .scene-preview-panel.scene-accepted {
  border-color: rgba(46,204,113,0.5);
  box-shadow: 0 0 12px rgba(46,204,113,0.15);
}
.gui-container .scene-preview-panel.scene-rejected {
  border-color: rgba(231,76,60,0.5);
  box-shadow: 0 0 12px rgba(231,76,60,0.15);
}
.gui-container .scene-preview-label {
  font-size: 11px;
  color: var(--muted);
  padding: 4px 10px 2px;
  text-transform: uppercase;
  letter-spacing: .5px;
  flex-shrink: 0;
}
.gui-container .scene-preview-img {
  flex: 1 1 auto;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 0;
  overflow: hidden;
  position: relative;
}
.gui-container .scene-preview-img img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  image-rendering: auto;
  display: block;
}
.gui-container .scene-zoom-bar {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 3px 10px;
  flex-shrink: 0;
  background: rgba(16,19,26,0.7);
}

/* Zoom mode */
.gui-container .scene-preview-img.zoom-active {
  overflow: hidden;
  cursor: crosshair;
  border: 1px solid var(--brand);
}
.gui-container .scene-preview-img.zoom-active img {
  object-fit: cover;
  transition: none;
  image-rendering: crisp-edges;
}

/* ── Info Bar ── */
.gui-container .scene-info-bar {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 6px 14px;
  background: #111318;
  border-top: 1px solid #1f2533;
  font-size: 13px;
  flex-shrink: 0;
  flex-wrap: wrap;
}
.gui-container .scene-info-filename {
  font-weight: 600;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  min-width: 0;
  flex: 0 1 auto;
  cursor: default;
}
.gui-container .scene-info-quality {
  color: #a9c9ee;
  font-size: 12px;
  flex-shrink: 0;
}

/* Cull toggle */
.gui-container .scene-cull-toggle {
  display: flex;
  background: #1a1e26;
  border-radius: 6px;
  padding: 2px;
  gap: 2px;
  border: 1px solid #2a3040;
}
.gui-container .cull-btn {
  background: transparent;
  border: none;
  color: #6a768c;
  font-size: 11px;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.15s ease;
  white-space: nowrap;
  height: auto;
}
.gui-container .cull-btn:hover {
  color: #cbd2dc;
  background: #252d40;
}
.gui-container .cull-btn.active.reject {
  background: #e74c3c;
  color: #fff;
}
.gui-container .cull-btn.active.unrated {
  background: #34495e;
  color: #fff;
}
.gui-container .cull-btn.active.accept {
  background: #2ecc71;
  color: #fff;
}
.gui-container .cull-btn:not(.active) {
  opacity: 0.6;
}

.gui-container .scene-info-meta {
  color: var(--muted);
  font-size: 12px;
  margin-left: auto;
  flex-shrink: 0;
}

/* ── BOTTOM: Filmstrip ── */
.gui-container .scene-filmstrip-wrap {
  display: flex;
  align-items: stretch;
  flex-shrink: 0;
  height: 140px;
  border-top: 1px solid #1f2533;
  background: #0b0d12;
  position: relative;
}
.gui-container .scene-filmstrip {
  flex: 1 1 auto;
  display: flex;
  gap: 6px;
  padding: 8px 10px;
  overflow-x: auto;
  overflow-y: hidden;
  scroll-behavior: smooth;
  align-items: stretch;
}
.gui-container .scene-filmstrip::-webkit-scrollbar {
  height: 4px;
}
.gui-container .scene-filmstrip::-webkit-scrollbar-track {
  background: transparent;
}
.gui-container .scene-filmstrip::-webkit-scrollbar-thumb {
  background: #2a3040;
  border-radius: 2px;
}

/* Filmstrip hints */
.gui-container .scene-filmstrip-hint {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 8px;
  font-size: 11px;
  color: var(--muted);
  background: rgba(17,19,24,0.85);
  white-space: nowrap;
  cursor: pointer;
  user-select: none;
  flex-shrink: 0;
  border-left: 1px solid #1f2533;
  border-right: 1px solid #1f2533;
  transition: color .15s, background .15s;
}
.gui-container .scene-filmstrip-hint:hover {
  color: var(--brand);
  background: rgba(26,42,68,0.5);
}
.gui-container .scene-filmstrip-hint-left {
  border-right: 1px solid #1f2533;
  border-left: none;
}
.gui-container .scene-filmstrip-hint-right {
  border-left: 1px solid #1f2533;
  border-right: none;
}

/* Filmstrip card */
.gui-container .filmstrip-card {
  flex-shrink: 0;
  width: 104px;
  display: flex;
  flex-direction: column;
  background: var(--card);
  border: 2px solid #2a3040;
  border-radius: 8px;
  overflow: hidden;
  cursor: pointer;
  transition: border-color .12s ease, box-shadow .12s ease;
  position: relative;
}
.gui-container .filmstrip-card:hover {
  border-color: #3a4a6a;
}
.gui-container .filmstrip-card.active {
  border-color: var(--brand);
  border-width: 3px;
  box-shadow: 0 0 10px rgba(74,163,255,0.3);
}

.gui-container .filmstrip-card.accepted .filmstrip-thumb {
  border: 2px solid #2ecc71;
}
.gui-container .filmstrip-card.rejected .filmstrip-thumb {
  border: 2px solid #e74c3c;
}

.gui-container .filmstrip-card .filmstrip-thumb {
  width: 100%;
  aspect-ratio: 4/3;
  background: #0e1117;
  overflow: hidden;
  flex-shrink: 0;
  box-sizing: border-box;
  border: 2px solid transparent;
  border-radius: 6px;
}
.gui-container .filmstrip-card .filmstrip-thumb img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
}
.gui-container .filmstrip-card .filmstrip-info {
  padding: 3px 6px 4px;
  display: flex;
  flex-direction: column;
  gap: 2px;
  flex: 1 0 auto;
}
.gui-container .filmstrip-card .filmstrip-filename {
  font-size: 10px;
  color: var(--text);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.gui-container .filmstrip-card .filmstrip-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 10px;
  color: var(--muted);
}
.gui-container .filmstrip-card .filmstrip-stars {
  font-size: 9px;
  letter-spacing: 1px;
}
.gui-container .filmstrip-card .filmstrip-stars .filled.auto { color: #6aa0ff; }
.gui-container .filmstrip-card .filmstrip-stars .filled.manual { color: #f5c542; }

/* Hide the scene info filename to avoid duplication with filmstrip filenames */
.gui-container .scene-info-filename {
  display: none;
}

/* ── Inline Layout Helper ── */
.gui-container .inline {
  display: flex;
  gap: 8px;
  align-items: center;
  flex-wrap: wrap;
}

.gui-container .inline > * {
  min-width: 0;
}

.gui-container .inline button {
  height: 30px;
  white-space: nowrap;
}

/* ── Toast Container ── */
.gui-container #toastContainer {
  position: absolute;
  right: 18px;
  bottom: 48px;
  z-index: 20000;
  pointer-events: none;
  display: flex;
  flex-direction: column-reverse;
  gap: 8px;
}

.gui-container .toast-item {
  pointer-events: auto;
  background: rgba(10,12,15,0.96);
  border: 1px solid #2a3040;
  color: var(--text);
  padding: 10px 16px;
  border-radius: 10px;
  font-size: 13px;
  box-shadow: 0 4px 16px rgba(0,0,0,.5);
  display: flex;
  align-items: center;
  gap: 10px;
  max-width: 420px;
  animation: toast-in .2s ease;
}

.gui-container .toast-item.toast-out {
  animation: toast-out .2s ease forwards;
}

@keyframes toast-in {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes toast-out {
  from { opacity: 1; transform: translateY(0); }
  to { opacity: 0; transform: translateY(10px); }
}

/* ── Tutorial Overlay ── */
.gui-container #tutorialOverlay {
  display: none;
  position: absolute;
  inset: 0;
  z-index: 2000;
  pointer-events: none;
}

.gui-container #tutorialOverlay.active {
  display: block;
}

.gui-container #tutorialHighlight {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0);
  pointer-events: none;
  transition: clip-path .3s ease;
}

.gui-container #tutorialCard {
  position: absolute;
  background: #161922;
  border: 1px solid var(--brand);
  border-radius: 12px;
  padding: 16px 20px;
  max-width: 380px;
  min-width: 320px;
  z-index: 2001;
  box-shadow: 0 8px 32px rgba(0,0,0,.6);
  pointer-events: auto;
  transition: opacity 0.2s ease;
}

.gui-container .tutorial-counter {
  font-size: 11px;
  color: var(--muted);
  margin-bottom: 4px;
}

.gui-container .tutorial-progress {
  height: 3px;
  background: #2a3040;
  border-radius: 999px;
  margin-bottom: 10px;
  overflow: hidden;
}

.gui-container .tutorial-progress-fill {
  height: 100%;
  background: var(--brand);
  border-radius: 999px;
  transition: width .3s ease;
}

.gui-container #tutorialCard h3 {
  margin: 0 0 8px;
  font-size: 15px;
  font-weight: 700;
  color: var(--text);
}

.gui-container .tutorial-body {
  font-size: 13px;
  color: #cbd2dc;
  line-height: 1.55;
  margin-bottom: 10px;
}

.gui-container .tutorial-nudge {
  font-size: 12px;
  color: var(--brand);
  font-weight: 600;
  margin-bottom: 8px;
}

.gui-container .tutorial-actions {
  display: flex;
  gap: 8px;
  align-items: center;
  flex-wrap: nowrap;
}

.gui-container .tutorial-skip {
  background: none;
  border: none;
  color: var(--muted);
  font-size: 12px;
  cursor: pointer;
  padding: 4px 8px;
  height: auto;
}
.gui-container .tutorial-skip:hover {
  color: var(--text);
  background: none;
}

.gui-container .tut-btn {
  height: 30px;
  padding: 0 14px;
  font-size: 12px;
  border-radius: 6px;
  white-space: nowrap;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.gui-container .tut-btn.primary {
  margin-left: auto;
}

.gui-container .highlight-target {
  outline: 2px solid rgba(74, 163, 255, 0.9) !important;
  outline-offset: 4px;
  position: relative;
  z-index: 50;
  animation: tutorial-ping 1.6s ease-out infinite;
}

@keyframes tutorial-ping {
  0% {
    outline-color: rgba(74, 163, 255, 1);
    box-shadow: 0 0 0 0 rgba(74, 163, 255, 0.45);
  }
  60% {
    outline-color: rgba(74, 163, 255, 0.7);
    box-shadow: 0 0 0 10px rgba(74, 163, 255, 0);
  }
  100% {
    outline-color: rgba(74, 163, 255, 1);
    box-shadow: 0 0 0 0 rgba(74, 163, 255, 0);
  }
}

/* ── Time Group Headers (timeline rendering) ── */
.gui-container .timeline-body {
  padding: 4px 0 8px 0;
}

.gui-container .timeline-day-banner {
  position: sticky;
  top: 44px;
  z-index: 8;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: #6a7a90;
  padding: 10px 16px 6px 16px;
  background: var(--bg);
  border-bottom: 1px solid #1a2040;
  margin-bottom: 4px;
}

.gui-container .timeline-node {
  display: flex;
  align-items: stretch;
  gap: 0;
}

.gui-container .timeline-rail-col {
  display: flex;
  flex-direction: column;
  align-items: center;
  flex-shrink: 0;
  width: 44px;
  padding-top: 0;
}

.gui-container .timeline-dot {
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: #2e5ea0;
  border: 2px solid var(--bg);
  box-shadow: 0 0 0 3px rgba(58, 100, 200, 0.18);
  flex-shrink: 0;
  margin-top: 15px;
  z-index: 1;
}

.gui-container .timeline-line {
  width: 2px;
  background: #1c2438;
  flex: 1;
  min-height: 16px;
  margin-top: 3px;
}

.gui-container .timeline-line.last {
  background: transparent;
}

.gui-container .timeline-content-col {
  flex: 1;
  min-width: 0;
  padding: 0 12px 20px 4px;
}

.gui-container .timeline-node-header {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 8px 0 8px 0;
  border-bottom: 1px solid #141a28;
  margin-bottom: 10px;
}

.gui-container .timeline-node-time {
  font-size: 13px;
  font-weight: 600;
  color: #9ab4cc;
}

.gui-container .timeline-node-count {
  font-size: 11px;
}

.gui-container .timeline-grid {
  gap: 10px;
}

/* ── Demo Viewport Wrapper (mobile scroll container) ── */
.demo-viewport-wrapper {
  width: 100vw;
  margin-left: calc(-50vw + 50%);
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

/* ── Mobile Rotation Hint ── */
.mobile-rotate-hint {
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 32px 20px;
  background: #0b0c0f;
  border-radius: 12px;
  border: 1px solid #1d2230;
  color: #8a9099;
  text-align: center;
  margin: 20px 0;
}
.mobile-rotate-hint .mobile-rotate-icon {
  font-size: 48px;
  animation: spin-hint 2s ease-in-out infinite alternate;
}
@keyframes spin-hint {
  from { transform: rotate(-15deg); }
  to { transform: rotate(15deg); }
}
.mobile-rotate-hint p { font-size: 15px; color: #cbd2dc; margin: 0; }
.mobile-rotate-hint small { font-size: 12px; opacity: 0.7; }

/* ── Mobile: scale viewport to fit small screens ── */
@media (max-width: 900px) {
  #demo-viewport {
    min-width: 860px;
    height: 800px;
  }
}

@media (max-width: 480px) and (orientation: portrait) {
  .mobile-rotate-hint {
    display: flex;
  }
  .demo-viewport-wrapper {
    display: none;
  }
}

/* ── Utility ── */
.gui-container .muted {
  color: var(--muted);
}

.gui-container .hidden {
  display: none !important;
}

.gui-container .filename {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}