:root {
  --background: #10121b;
  --surface: #1d2130;
  --surface-raised: #252a3d;
  --primary: #8b5cf6;
  --primary-strong: #7c3aed;
  --accent: #22d3ee;
  --text: #f8fafc;
  --ink: var(--text);
  --muted: #94a3b8;
  --panel: rgba(29, 33, 48, 0.92);
  --line: rgba(148, 163, 184, 0.18);
  --danger: #fb7185;
  --shadow: 0 22px 55px rgba(2, 6, 23, 0.42);
  --font-display: "Bahnschrift", "Aptos Display", "Segoe UI", sans-serif;
  --font-body: "Aptos", "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

.visually-hidden {
  position: fixed;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
}

.hidden {
  display: none !important;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  font-family: var(--font-body);
  background:
    radial-gradient(circle at 12% -10%, rgba(139, 92, 246, 0.22), transparent 34%),
    radial-gradient(circle at 92% 8%, rgba(34, 211, 238, 0.12), transparent 26%),
    var(--background);
}

button,
input,
textarea {
  font: inherit;
}

.app-shell {
  padding: 24px;
}

.topbar,
.panel {
  border: 1px solid var(--line);
  background: var(--panel);
  box-shadow: var(--shadow);
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  border-radius: 24px;
}

.topbar-actions,
.panel-header-actions,
.url-row,
.stepper,
.stage-controls {
  display: flex;
  gap: 10px;
  align-items: center;
}

.workspace {
  --playback-column: minmax(320px, 1.15fr);
  --formation-column: minmax(520px, 1.5fr);
  --cues-column: minmax(280px, 0.95fr);
  display: grid;
  grid-template-columns: var(--playback-column) var(--formation-column) var(--cues-column);
  gap: 18px;
  margin-top: 18px;
  transition: grid-template-columns 320ms cubic-bezier(0.22, 1, 0.36, 1);
}

.workspace.playback-collapsed {
  --playback-column: 72px;
}

.workspace.formation-collapsed {
  --formation-column: 72px;
}

.workspace.cues-collapsed {
  --cues-column: 72px;
}

.panel {
  border-radius: 24px;
  padding: 18px;
  transition: gap 280ms ease, padding 280ms ease;
}

.video-panel,
.timeline-panel {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.stage-panel {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.panel-content {
  max-height: 2400px;
  min-width: 0;
  opacity: 1;
  overflow: hidden;
  transform: translateY(0);
  visibility: visible;
  transition:
    max-height 360ms cubic-bezier(0.22, 1, 0.36, 1),
    opacity 180ms ease,
    transform 280ms ease,
    visibility 0s;
}

.video-panel .panel-content,
.stage-panel .panel-content,
.timeline-panel .panel-content {
  display: flex;
  flex: 1;
  flex-direction: column;
  gap: 16px;
  min-height: 0;
}

.stage-panel .panel-content {
  gap: 14px;
}

.panel.collapsed .panel-content {
  flex: 0 1 auto;
  max-height: 0;
  opacity: 0;
  pointer-events: none;
  transform: translateY(-8px);
  visibility: hidden;
  transition:
    max-height 320ms cubic-bezier(0.4, 0, 0.2, 1),
    opacity 150ms ease,
    transform 220ms ease,
    visibility 0s 320ms;
}

.panel.collapsed {
  gap: 0;
}

.panel.collapsed .panel-header-actions > :not(.collapse-button) {
  display: none;
}

.panel.collapsed .panel-header-actions {
  justify-content: flex-end;
}

.panel-header {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: flex-start;
}

.collapse-button {
  flex: 0 0 38px;
  width: 38px;
  height: 38px;
  padding: 0;
  font-size: 20px;
  line-height: 1;
}

.eyebrow {
  margin: 0 0 4px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.14em;
}

h1,
h2 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
}

h1 {
  font-size: 32px;
  letter-spacing: -0.03em;
}

h2 {
  font-size: 24px;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 6px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 600;
}

.field input,
.field textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 11px 13px;
  color: var(--text);
  background: rgba(16, 18, 27, 0.72);
  outline: none;
  transition: border-color 140ms ease, box-shadow 140ms ease;
}

.field input:focus,
.field textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(139, 92, 246, 0.18);
}

.field input::placeholder,
.field textarea::placeholder {
  color: #64748b;
}

.field textarea {
  resize: vertical;
}

.compact-field {
  min-width: 0;
}

.compact-field.grow {
  flex: 1;
}

.primary-button,
.ghost-button,
.danger-button {
  border: 1px solid transparent;
  border-radius: 999px;
  padding: 10px 16px;
  cursor: pointer;
  transition: transform 120ms ease, background 120ms ease, opacity 120ms ease;
}

.primary-button {
  color: var(--text);
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-strong) 100%);
  box-shadow: 0 8px 24px rgba(139, 92, 246, 0.24);
}

.ghost-button {
  color: var(--text);
  border-color: var(--line);
  background: rgba(37, 42, 61, 0.78);
}

.danger-button {
  color: #fff1f2;
  background: rgba(251, 113, 133, 0.16);
  border-color: rgba(251, 113, 133, 0.3);
}

.small-button {
  padding: 6px 12px;
}

.primary-button:hover,
.ghost-button:hover,
.danger-button:hover {
  transform: translateY(-1px);
}

.ghost-button:hover {
  border-color: rgba(34, 211, 238, 0.42);
  background: rgba(34, 211, 238, 0.08);
}

.view-switcher {
  display: inline-flex;
  gap: 3px;
  padding: 3px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(16, 18, 27, 0.72);
}

.view-button {
  border: 0;
  border-radius: 999px;
  padding: 7px 12px;
  color: var(--muted);
  background: transparent;
  cursor: pointer;
}

.view-button.active {
  color: var(--text);
  background: var(--primary);
  box-shadow: 0 5px 16px rgba(139, 92, 246, 0.32);
}

.video-meta {
  display: grid;
  gap: 10px;
  grid-template-columns: repeat(3, 1fr);
}

.source-banner {
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: rgba(16, 18, 27, 0.55);
}

.status-card {
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: rgba(16, 18, 27, 0.56);
}

.status-label {
  display: block;
  margin-bottom: 4px;
  color: var(--muted);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.player-frame {
  overflow: hidden;
  border-radius: 24px;
  border: 1px solid var(--line);
  background:
    radial-gradient(circle at center, rgba(139, 92, 246, 0.18), transparent 55%),
    #090b12;
  aspect-ratio: 16 / 9;
}

.player-frame iframe,
.player-placeholder,
.player-frame video,
.player-frame #youtubePlayer {
  width: 100%;
  height: 100%;
}

.player-placeholder {
  display: grid;
  place-items: center;
  padding: 24px;
  text-align: center;
  color: var(--muted);
  font-size: 20px;
}

.stage-layout {
  display: grid;
  grid-template-columns: 220px minmax(0, 1fr);
  gap: 16px;
  min-height: 0;
  flex: 1;
}

.legend {
  overflow: auto;
  padding: 10px;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: rgba(16, 18, 27, 0.52);
}

.legend-row {
  display: grid;
  gap: 10px;
  grid-template-columns: 36px 1fr;
  align-items: center;
  padding: 8px;
  border-radius: 16px;
  border: 1px solid transparent;
  cursor: pointer;
}

.legend-row.active {
  background: rgba(139, 92, 246, 0.16);
  border-color: rgba(139, 92, 246, 0.56);
  box-shadow: inset 3px 0 0 var(--primary), 0 8px 24px rgba(2, 6, 23, 0.18);
}

.swatch {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  color: white;
  font-weight: 700;
  font-size: 13px;
}

.legend-details {
  min-width: 0;
}

.dancer-name-input {
  width: 100%;
  min-width: 0;
  border: 1px solid transparent;
  border-radius: 9px;
  padding: 5px 7px;
  color: var(--text);
  background: transparent;
  font-weight: 700;
  outline: none;
  transition: border-color 140ms ease, background 140ms ease, box-shadow 140ms ease;
}

.dancer-name-input:hover {
  border-color: var(--line);
  background: rgba(16, 18, 27, 0.36);
}

.dancer-name-input:focus {
  border-color: var(--primary);
  background: rgba(16, 18, 27, 0.72);
  box-shadow: 0 0 0 3px rgba(139, 92, 246, 0.16);
}

.pose-control {
  display: block;
  grid-column: 1 / -1;
  padding: 8px 4px 2px 46px;
}

.pose-control select {
  width: 100%;
  min-width: 0;
  border: 1px solid rgba(139, 92, 246, 0.45);
  border-radius: 9px;
  padding: 7px 8px;
  color: var(--text);
  background: var(--surface-raised);
  outline: none;
}

.transition-toolbar {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: center;
  padding: 14px 16px;
  border: 1px solid rgba(139, 92, 246, 0.42);
  border-radius: 18px;
  background: linear-gradient(135deg, rgba(139, 92, 246, 0.14), rgba(34, 211, 238, 0.06));
}

.transition-toolbar p {
  margin: 0;
}

.transition-toolbar #transitionHint {
  margin-top: 4px;
  color: var(--muted);
  font-size: 12px;
}

.transition-timing {
  display: grid;
  grid-template-columns: 78px minmax(0, 1fr);
  align-items: center;
  gap: 4px 8px;
  max-width: 280px;
  margin-top: 9px;
}

.transition-timing label {
  grid-column: 1 / -1;
  color: var(--muted);
  font-size: 11px;
  font-weight: 600;
}

.transition-timing input {
  width: 78px;
  min-height: 30px;
  border: 1px solid var(--line);
  border-radius: 3px;
  padding: 4px 7px;
  color: var(--text);
  background: var(--control-bg);
}

.transition-timing input:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.transition-timing small {
  color: var(--muted);
  font-size: 11px;
  line-height: 1.3;
}

.transition-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

#addWaypointButton.active {
  background: var(--accent);
  color: #07151a;
  box-shadow: 0 8px 24px rgba(34, 211, 238, 0.22);
}

.stage-surface {
  position: relative;
  overflow: hidden;
  min-height: 630px;
  isolation: isolate;
  contain: layout paint;
  border: 1px solid rgba(34, 211, 238, 0.2);
  border-radius: 28px;
  background:
    radial-gradient(circle at 50% 4%, rgba(34, 211, 238, 0.11), transparent 36%),
    #121622;
  box-shadow: inset 0 0 60px rgba(2, 6, 23, 0.55);
}

.stage-surface.adding-waypoint {
  cursor: crosshair;
  border-color: rgba(34, 211, 238, 0.65);
}

.stage-surface::before,
.stage-surface::after {
  content: "";
  position: absolute;
  inset-inline: 0;
  pointer-events: none;
}

.stage-surface::before {
  inset: 0;
  z-index: 0;
  background:
    repeating-linear-gradient(
      to right,
      rgba(34, 211, 238, 0.13) 0,
      rgba(34, 211, 238, 0.13) 1px,
      transparent 1px,
      transparent 10%
    ),
    repeating-linear-gradient(
      to bottom,
      rgba(139, 92, 246, 0.15) 0,
      rgba(139, 92, 246, 0.15) 1px,
      transparent 1px,
      transparent 12.5%
    ),
    linear-gradient(180deg, rgba(29, 33, 48, 0.2), rgba(139, 92, 246, 0.08));
}

.stage-surface::after {
  bottom: 20px;
  left: 12%;
  right: 12%;
  height: 2px;
  z-index: 1;
  background: var(--accent);
  box-shadow: 0 0 16px rgba(34, 211, 238, 0.55);
}

.stage-surface.view-3d::before {
  inset: 4% 0 0;
  clip-path: polygon(18% 0, 82% 0, 100% 100%, 0 100%);
  background:
    linear-gradient(78deg, transparent 49.8%, rgba(34, 211, 238, 0.18) 50%, transparent 50.2%),
    linear-gradient(84deg, transparent 49.8%, rgba(34, 211, 238, 0.12) 50%, transparent 50.2%),
    linear-gradient(96deg, transparent 49.8%, rgba(34, 211, 238, 0.12) 50%, transparent 50.2%),
    linear-gradient(102deg, transparent 49.8%, rgba(34, 211, 238, 0.18) 50%, transparent 50.2%),
    repeating-linear-gradient(
      to bottom,
      rgba(139, 92, 246, 0.2) 0,
      rgba(139, 92, 246, 0.2) 1px,
      transparent 1px,
      transparent 11%
    ),
    linear-gradient(180deg, rgba(29, 33, 48, 0.72), rgba(139, 92, 246, 0.13));
  border: 1px solid rgba(34, 211, 238, 0.25);
  box-shadow: inset 0 0 60px rgba(2, 6, 23, 0.5);
}

.dancer-marker {
  position: absolute;
  width: 56px;
  height: 56px;
  margin-left: -28px;
  margin-top: -28px;
  border: 2px solid rgba(248, 250, 252, 0.82);
  border-radius: 50%;
  box-shadow: 0 10px 28px rgba(2, 6, 23, 0.48), 0 0 0 1px rgba(34, 211, 238, 0.12);
  cursor: grab;
  user-select: none;
  display: grid;
  place-items: center;
  color: white;
  font-weight: 800;
  touch-action: none;
  transform: scale(var(--marker-scale, 1));
  transition: box-shadow 120ms ease, outline-color 120ms ease, transform 180ms ease;
  backface-visibility: hidden;
}

.stage-surface.playing .dancer-marker {
  transition: none;
  will-change: transform;
}

.dancer-marker:active,
.dancer-marker.dragging {
  cursor: grabbing;
}

.dancer-marker.selected {
  outline: 4px solid rgba(34, 211, 238, 0.38);
  box-shadow: 0 10px 30px rgba(2, 6, 23, 0.5), 0 0 22px rgba(34, 211, 238, 0.36);
}

.dancer-marker.sprite-marker {
  width: 96px;
  height: 96px;
  margin-top: -88px;
  margin-left: -48px;
  overflow: visible;
  border: 0;
  outline: 0;
  background: transparent !important;
  box-shadow: none;
  transform-origin: 50% 88%;
}

.dancer-marker.sprite-marker.selected {
  outline: 0;
  box-shadow: none;
  filter: drop-shadow(0 0 9px rgba(34, 211, 238, 0.7));
}

.sprite-avatar {
  position: absolute;
  inset: 0;
  display: block;
  overflow: hidden;
  background-image: url("./assets/dancer-sprite-sheet.png?v=2");
  background-repeat: no-repeat;
  background-position: var(--sprite-x) var(--sprite-y);
  background-size: 400% 300%;
  image-rendering: pixelated;
  pointer-events: none;
}

.marker-number {
  position: absolute;
  right: -2px;
  bottom: 2px;
  display: grid;
  place-items: center;
  width: 27px;
  height: 27px;
  border: 2px solid var(--text);
  border-radius: 50%;
  color: white;
  font-size: 12px;
  font-weight: 800;
  box-shadow: 0 5px 14px rgba(2, 6, 23, 0.62);
}

.transition-lines {
  position: absolute;
  z-index: 100;
  inset: 0;
  width: 100%;
  height: 100%;
  overflow: visible;
  pointer-events: none;
}

.transition-lines polyline {
  fill: none;
  stroke: var(--path-color);
  stroke-width: 0.55;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-dasharray: 1.4 1.2;
  opacity: 0.28;
  vector-effect: non-scaling-stroke;
}

.transition-lines polyline.selected {
  stroke-width: 1.25;
  stroke-dasharray: none;
  opacity: 1;
  filter: drop-shadow(0 0 3px var(--path-color));
}

.transition-node,
.path-waypoint {
  position: absolute;
  z-index: 104;
  display: grid;
  place-items: center;
  width: 32px;
  height: 32px;
  margin: -16px 0 0 -16px;
  border-radius: 50%;
  color: white;
  font-size: 11px;
  font-weight: 800;
  cursor: grab;
  touch-action: none;
}

.start-node {
  z-index: 105;
  width: 28px;
  height: 28px;
  margin: -14px 0 0 -14px;
  border: 2px solid var(--text);
  box-shadow: 0 5px 14px rgba(2, 6, 23, 0.5);
}

.end-node {
  z-index: 103;
  width: 44px;
  height: 44px;
  margin: -22px 0 0 -22px;
  border: 3px solid var(--dancer-color);
  color: var(--text);
  background: rgba(16, 18, 27, 0.86);
}

.transition-node.selected {
  outline: 4px solid rgba(34, 211, 238, 0.35);
  z-index: 106;
}

.path-waypoint {
  width: 24px;
  height: 24px;
  margin: -12px 0 0 -12px;
  border: 2px solid var(--dancer-color);
  color: var(--text);
  background: var(--surface);
  cursor: grab;
}

.path-waypoint.selected {
  background: var(--dancer-color);
  box-shadow: 0 0 0 4px rgba(34, 211, 238, 0.2);
  z-index: 108;
}

.transition-node.dragging,
.path-waypoint.dragging {
  cursor: grabbing;
}

.stage-caption {
  position: absolute;
  bottom: 8px;
  left: 14px;
  padding: 6px 10px;
  border-radius: 999px;
  z-index: 110;
  background: rgba(34, 211, 238, 0.12);
  color: var(--accent);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.upstage-caption {
  position: absolute;
  z-index: 110;
  top: 10px;
  left: 50%;
  transform: translateX(-50%);
  color: var(--muted);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.timeline-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  overflow: auto;
}

@media (min-width: 1281px) {
  .panel.collapsed {
    padding-inline: 14px;
  }

  .panel.collapsed .panel-header {
    justify-content: center;
  }

  .panel.collapsed .panel-header > div:first-child {
    display: none;
  }

  .panel.collapsed .panel-header-actions {
    width: 100%;
    justify-content: center;
  }
}

.timeline-card {
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: rgba(16, 18, 27, 0.52);
  cursor: pointer;
}

.timeline-card.active {
  border-color: rgba(139, 92, 246, 0.62);
  background: linear-gradient(135deg, rgba(139, 92, 246, 0.18), rgba(34, 211, 238, 0.06));
  box-shadow: inset 3px 0 0 var(--primary);
}

.timeline-card h3,
.timeline-card p {
  margin: 0;
}

.timeline-card p {
  margin-top: 5px;
  color: var(--muted);
  font-size: 13px;
}

.timeline-card-time {
  display: inline-block;
  padding: 4px 10px;
  border-radius: 999px;
  background: rgba(34, 211, 238, 0.12);
  color: var(--accent);
  font-size: 12px;
  font-weight: 700;
}

.transition-card {
  display: grid;
  grid-template-columns: 28px 1fr;
  gap: 8px;
  width: calc(100% - 18px);
  margin: -5px 9px;
  padding: 10px 12px;
  border: 1px dashed rgba(34, 211, 238, 0.3);
  border-radius: 14px;
  color: var(--text);
  text-align: left;
  background: rgba(34, 211, 238, 0.05);
  cursor: pointer;
}

.transition-card:hover,
.transition-card.active {
  border-color: var(--accent);
  background: rgba(34, 211, 238, 0.11);
}

.transition-arrow {
  display: grid;
  place-items: center;
  color: var(--accent);
  font-size: 18px;
}

.transition-card span:last-child {
  display: grid;
  gap: 2px;
}

.transition-card small {
  color: var(--muted);
  font-size: 11px;
}

@media (max-width: 1280px) {
  .workspace {
    grid-template-columns: 1fr;
  }

  .stage-layout {
    grid-template-columns: 1fr;
  }

  .transition-toolbar {
    align-items: stretch;
    flex-direction: column;
  }

  .transition-actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
  }

  .transition-actions button:first-child {
    grid-column: 1 / -1;
  }

  .video-meta {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 720px) {
  .app-shell {
    padding: 10px;
  }

  .topbar {
    align-items: stretch;
    flex-direction: column;
    gap: 16px;
    padding: 16px;
    border-radius: 18px;
  }

  .topbar-actions {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
  }

  .topbar-actions button {
    padding-inline: 10px;
  }

  .workspace {
    gap: 12px;
    margin-top: 12px;
  }

  .panel {
    padding: 14px;
    border-radius: 18px;
  }

  .panel-header {
    flex-direction: column;
  }

  .panel-header-actions {
    width: 100%;
    flex-wrap: wrap;
  }

  .panel-header-actions .view-switcher {
    width: 100%;
  }

  .view-button {
    flex: 1;
    min-height: 40px;
  }

  .url-row {
    flex-wrap: wrap;
  }

  .url-row input {
    flex-basis: 100%;
  }

  .url-row button {
    flex: 1;
    min-height: 44px;
  }

  .stage-controls {
    display: grid;
    grid-template-columns: 1fr 1fr;
    align-items: end;
  }

  .stage-controls .grow,
  .stage-controls .compact-field:first-child {
    grid-column: 1 / -1;
  }

  .stage-layout {
    display: grid;
  }

  .stage-surface {
    order: 1;
    min-height: clamp(390px, 118vw, 540px);
    border-radius: 20px;
  }

  .legend {
    order: 2;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    max-height: 260px;
  }

  .legend-row {
    min-width: 0;
  }

  .pose-control {
    padding-left: 4px;
  }

  .dancer-name-input {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .dancer-marker:not(.sprite-marker) {
    width: 46px;
    height: 46px;
    margin-top: -23px;
    margin-left: -23px;
  }

  .dancer-marker.sprite-marker {
    width: 80px;
    height: 80px;
    margin-top: -72px;
    margin-left: -40px;
  }

  .marker-number {
    width: 24px;
    height: 24px;
    font-size: 11px;
  }

  h1 {
    font-size: 27px;
  }

  h2 {
    font-size: 21px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .workspace,
  .panel,
  .panel-content {
    transition-duration: 1ms;
  }
}

/* Compact desktop workspace */
:root {
  --background: #0d111a;
  --surface: #171c28;
  --surface-raised: #202635;
  --panel: rgba(23, 28, 40, 0.97);
  --line: rgba(148, 163, 184, 0.22);
  --shadow: 0 8px 24px rgba(2, 6, 23, 0.26);
}

body {
  background:
    linear-gradient(135deg, rgba(139, 92, 246, 0.07), transparent 34%),
    var(--background);
}

.app-shell {
  padding: 14px;
}

.topbar {
  position: relative;
  justify-content: flex-start;
  min-height: 44px;
  padding: 4px 8px;
  border-radius: 5px;
  box-shadow: 0 3px 14px rgba(2, 6, 23, 0.22);
}

.app-title {
  display: flex;
  align-items: baseline;
  gap: 10px;
  min-width: 0;
  padding-left: 12px;
}

.app-title h1 {
  font-size: 16px;
  letter-spacing: -0.01em;
}

.app-title span {
  overflow: hidden;
  color: var(--muted);
  font-size: 12px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.topbar-help-actions {
  display: flex;
  align-items: center;
  gap: 7px;
  margin-left: auto;
}

.help-button {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  height: 30px;
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 0 10px 0 7px;
  color: var(--text);
  background: var(--surface-raised);
  cursor: pointer;
  font-weight: 700;
  text-decoration: none;
  white-space: nowrap;
}

.help-button:hover {
  border-color: color-mix(in srgb, var(--accent) 48%, var(--line));
  background: color-mix(in srgb, var(--accent) 9%, var(--surface-raised));
}

.help-button:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.help-button-icon {
  display: grid;
  place-items: center;
  width: 18px;
  height: 18px;
  border: 1px solid color-mix(in srgb, var(--accent) 72%, transparent);
  border-radius: 50%;
  color: var(--accent);
  font-size: 11px;
  line-height: 1;
}

.file-menu-wrap {
  position: relative;
  align-self: stretch;
  display: flex;
  align-items: center;
  border-right: 1px solid var(--line);
  padding-right: 8px;
}

.file-button {
  min-width: 64px;
  height: 34px;
  border: 1px solid transparent;
  border-radius: 3px;
  padding: 0 14px;
  color: var(--text);
  background: var(--primary-strong);
  cursor: pointer;
  font-weight: 700;
}

.file-button:hover,
.file-button[aria-expanded="true"] {
  background: var(--primary);
}

.file-button:focus-visible,
.file-menu button:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.file-menu {
  position: absolute;
  z-index: 1000;
  top: calc(100% + 6px);
  left: 0;
  display: grid;
  width: 270px;
  padding: 6px;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: #171c28;
  box-shadow: 0 18px 50px rgba(2, 6, 23, 0.52);
}

.file-menu button {
  display: grid;
  gap: 3px;
  border: 0;
  border-radius: 2px;
  padding: 10px 12px;
  color: var(--text);
  text-align: left;
  background: transparent;
  cursor: pointer;
}

.file-menu button:hover {
  background: rgba(139, 92, 246, 0.16);
}

.file-menu button + button {
  border-top: 1px solid rgba(148, 163, 184, 0.12);
}

.file-menu button span {
  font-weight: 700;
}

.file-menu button small {
  color: var(--muted);
  font-size: 11px;
}

.workspace {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-top: 12px;
  align-items: start;
}

.panel {
  min-width: 0;
  border-radius: 6px;
  padding: 14px;
  box-shadow: var(--shadow);
}

.video-panel,
.stage-panel {
  gap: 12px;
}

.video-panel .panel-content,
.stage-panel .panel-content {
  gap: 10px;
}

.panel-header {
  align-items: center;
}

.panel-header-actions,
.url-row,
.stepper,
.stage-controls {
  gap: 6px;
}

.panel-header-actions {
  justify-content: flex-end;
  flex-wrap: wrap;
}

.eyebrow {
  margin-bottom: 2px;
  font-size: 10px;
  letter-spacing: 0.12em;
  white-space: nowrap;
}

h2 {
  font-size: 19px;
  letter-spacing: -0.015em;
}

.field {
  gap: 4px;
  font-size: 12px;
}

.field input,
.field textarea {
  border-radius: 3px;
  padding: 8px 9px;
}

.field input:focus,
.field textarea:focus {
  box-shadow: inset 3px 0 0 var(--primary);
}

.primary-button,
.ghost-button,
.danger-button {
  border-radius: 3px;
  padding: 8px 11px;
  box-shadow: none;
}

.small-button {
  padding: 6px 9px;
  font-size: 12px;
}

.primary-button:hover,
.ghost-button:hover,
.danger-button:hover {
  transform: none;
}

.view-switcher {
  border-radius: 3px;
  padding: 2px;
}

.view-button {
  border-radius: 2px;
  padding: 6px 9px;
}

.view-button.active {
  box-shadow: inset 0 -2px 0 rgba(255, 255, 255, 0.28);
}

.url-row input {
  min-width: 0;
  flex: 1;
}

.video-meta {
  gap: 6px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.source-banner,
.status-card {
  border-radius: 3px;
  padding: 9px 10px;
}

.status-label {
  margin-bottom: 3px;
  font-size: 10px;
}

.player-frame {
  border-radius: 4px;
}

.player-placeholder {
  font-size: 16px;
}

.stage-controls {
  display: grid;
  grid-template-columns: minmax(130px, 1.05fr) 102px minmax(140px, 1fr) 86px;
  align-items: end;
}

.stepper input {
  min-width: 0;
  width: 42px;
  padding-inline: 3px;
  text-align: center;
}

.stepper .small-button {
  flex: 0 0 26px;
  width: 26px;
  padding-inline: 0;
}

.stage-layout {
  grid-template-columns: 160px minmax(0, 1fr);
  gap: 8px;
}

.legend {
  padding: 5px;
  border-radius: 4px;
}

.legend-row {
  gap: 6px;
  grid-template-columns: 32px 1fr;
  padding: 5px;
  border-radius: 3px;
}

.legend-row.active {
  box-shadow: inset 3px 0 0 var(--primary);
}

.swatch {
  width: 32px;
  height: 32px;
}

.dancer-name-input,
.pose-control select {
  border-radius: 2px;
}

.pose-control {
  padding: 5px 2px 2px 38px;
}

.transition-toolbar {
  border-radius: 4px;
  padding: 10px 12px;
}

.stage-surface {
  min-height: 540px;
  border-radius: 4px;
}

.stage-caption {
  border-radius: 2px;
}

.timeline-drawer {
  min-width: 0;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: rgba(13, 17, 26, 0.56);
}

.timeline-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  min-height: 42px;
  padding: 6px 7px 6px 10px;
  border-bottom: 1px solid var(--line);
}

.timeline-heading {
  display: flex;
  align-items: baseline;
  gap: 8px;
  min-width: 0;
}

.timeline-heading strong {
  font-size: 13px;
}

.timeline-heading span {
  color: var(--muted);
  font-size: 11px;
  white-space: nowrap;
}

.timeline-actions {
  display: flex;
  gap: 5px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.timeline-content {
  min-width: 0;
  padding: 8px;
}

.timeline-list {
  display: flex;
  flex-direction: row;
  gap: 6px;
  overflow-x: auto;
  overflow-y: hidden;
  padding-bottom: 3px;
  scroll-snap-type: x proximity;
}

.timeline-card {
  flex: 0 0 154px;
  min-width: 0;
  min-height: 68px;
  padding: 8px 9px;
  border-radius: 3px;
  scroll-snap-align: start;
}

.timeline-card:focus-visible,
.transition-card:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: -2px;
}

.timeline-card.active {
  box-shadow: inset 3px 0 0 var(--primary);
}

.timeline-card h3 {
  overflow: hidden;
  margin-top: 6px;
  font-size: 13px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.timeline-card p {
  display: none;
}

.timeline-card-time {
  border-radius: 2px;
  padding: 3px 6px;
  font-size: 10px;
}

.transition-card {
  flex: 0 0 118px;
  grid-template-columns: 22px 1fr;
  gap: 5px;
  width: auto;
  min-height: 68px;
  margin: 0;
  padding: 8px;
  border-radius: 3px;
  scroll-snap-align: start;
}

.transition-card strong {
  font-size: 11px;
}

.transition-card small {
  display: none;
}

.transition-card .transition-delay-summary {
  display: block;
  overflow: hidden;
  color: var(--accent);
  text-overflow: ellipsis;
  white-space: nowrap;
}

.transition-arrow {
  font-size: 15px;
  transition: transform 180ms ease;
}

.timeline-drawer.expanded .timeline-content {
  padding: 10px;
}

.timeline-drawer.expanded .timeline-list {
  flex-direction: column;
  max-height: 390px;
  overflow-x: hidden;
  overflow-y: auto;
}

.timeline-drawer.expanded .timeline-card {
  flex: 0 0 auto;
  width: 100%;
  min-height: 0;
  padding: 11px 12px;
}

.timeline-drawer.expanded .timeline-card h3 {
  white-space: normal;
}

.timeline-drawer.expanded .timeline-card p {
  display: block;
}

.timeline-drawer.expanded .transition-card {
  flex: 0 0 auto;
  width: calc(100% - 18px);
  min-height: 0;
  margin: 0 9px;
  padding: 9px 11px;
}

.timeline-drawer.expanded .transition-card small {
  display: block;
}

.timeline-drawer.expanded .transition-arrow {
  transform: rotate(90deg);
}

@media (max-width: 1050px) {
  .workspace {
    grid-template-columns: 1fr;
  }

  .stage-surface {
    min-height: 600px;
  }
}

@media (max-width: 760px) {
  .app-shell {
    padding: 8px;
  }

  .topbar {
    flex-direction: row;
    align-items: center;
    gap: 0;
    padding: 4px 6px;
    border-radius: 4px;
  }

  .app-title span {
    display: none;
  }

  .workspace {
    gap: 8px;
    margin-top: 8px;
  }

  .panel {
    padding: 10px;
    border-radius: 4px;
  }

  .panel-header {
    align-items: flex-start;
  }

  .stage-controls {
    grid-template-columns: 1fr 96px;
  }

  .stage-controls .grow,
  .stage-controls .compact-field:first-child {
    grid-column: auto;
  }

  .stage-layout {
    grid-template-columns: 1fr;
  }

  .stage-surface {
    min-height: clamp(390px, 112vw, 540px);
    border-radius: 3px;
  }

  .legend {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .timeline-header {
    align-items: flex-start;
    flex-direction: column;
  }

  .timeline-actions {
    width: 100%;
    justify-content: stretch;
  }

  .timeline-actions button {
    flex: 1;
  }

  .video-meta {
    grid-template-columns: 1fr;
  }
}

/* Light and dark themes */
:root {
  color-scheme: light;
  --background: #f3f5f9;
  --surface: #ffffff;
  --surface-raised: #edf1f6;
  --primary: #7c3aed;
  --primary-strong: #6d28d9;
  --accent: #087f98;
  --text: #182033;
  --ink: var(--text);
  --muted: #647187;
  --panel: rgba(255, 255, 255, 0.98);
  --line: rgba(51, 65, 85, 0.2);
  --danger: #be3455;
  --shadow: 0 8px 24px rgba(30, 41, 59, 0.1);
  --control-bg: #f8fafc;
  --control-hover: #eef2f7;
  --subtle-bg: rgba(241, 245, 249, 0.9);
  --menu-bg: #ffffff;
  --player-bg: #0b0f18;
  --player-muted: #a8b3c7;
  --stage-bg: #f7f9fd;
  --stage-wash: rgba(124, 58, 237, 0.055);
  --stage-grid-x: rgba(8, 127, 152, 0.14);
  --stage-grid-y: rgba(124, 58, 237, 0.12);
  --stage-shadow: inset 0 0 42px rgba(100, 116, 139, 0.12);
  --overlay-bg: rgba(255, 255, 255, 0.9);
  --active-bg: linear-gradient(135deg, rgba(124, 58, 237, 0.12), rgba(8, 127, 152, 0.05));
  --transition-bg: rgba(8, 127, 152, 0.055);
  --transition-hover: rgba(8, 127, 152, 0.11);
  --danger-bg: rgba(190, 52, 85, 0.09);
  --danger-border: rgba(190, 52, 85, 0.3);
  --danger-text: #9f2443;
  --placeholder: #7b879a;
  --toggle-thumb: #ffffff;
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --background: #0d111a;
  --surface: #171c28;
  --surface-raised: #252a3d;
  --primary: #8b5cf6;
  --primary-strong: #7c3aed;
  --accent: #22d3ee;
  --text: #f8fafc;
  --ink: var(--text);
  --muted: #94a3b8;
  --panel: rgba(23, 28, 40, 0.97);
  --line: rgba(148, 163, 184, 0.22);
  --danger: #fb7185;
  --shadow: 0 8px 24px rgba(2, 6, 23, 0.26);
  --control-bg: rgba(16, 18, 27, 0.72);
  --control-hover: rgba(16, 18, 27, 0.36);
  --subtle-bg: rgba(16, 18, 27, 0.55);
  --menu-bg: #171c28;
  --player-bg: #090b12;
  --player-muted: #94a3b8;
  --stage-bg: #121622;
  --stage-wash: rgba(139, 92, 246, 0.08);
  --stage-grid-x: rgba(34, 211, 238, 0.13);
  --stage-grid-y: rgba(139, 92, 246, 0.15);
  --stage-shadow: inset 0 0 60px rgba(2, 6, 23, 0.55);
  --overlay-bg: rgba(16, 18, 27, 0.86);
  --active-bg: linear-gradient(135deg, rgba(139, 92, 246, 0.18), rgba(34, 211, 238, 0.06));
  --transition-bg: rgba(34, 211, 238, 0.05);
  --transition-hover: rgba(34, 211, 238, 0.11);
  --danger-bg: rgba(251, 113, 133, 0.16);
  --danger-border: rgba(251, 113, 133, 0.3);
  --danger-text: #fff1f2;
  --placeholder: #64748b;
  --toggle-thumb: #414a60;
}

body {
  background:
    linear-gradient(135deg, rgba(124, 58, 237, 0.07), transparent 34%),
    var(--background);
}

.theme-toggle {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  width: 62px;
  height: 30px;
  margin-left: 0;
  border: 1px solid var(--line);
  border-radius: 5px;
  padding: 3px;
  color: var(--muted);
  background: var(--surface-raised);
  cursor: pointer;
}

body.help-open {
  overflow: hidden;
}

.help-dialog {
  width: min(780px, calc(100vw - 32px));
  max-height: min(820px, calc(100vh - 32px));
  margin: auto;
  padding: 0;
  border: 1px solid color-mix(in srgb, var(--accent) 34%, var(--line));
  border-radius: 10px;
  color: var(--text);
  background: var(--surface);
  box-shadow: 0 30px 90px rgba(2, 6, 23, 0.65);
  overflow: hidden;
}

.help-dialog[open] {
  animation: help-dialog-in 220ms cubic-bezier(0.22, 1, 0.36, 1);
}

.help-dialog::backdrop {
  background: rgba(5, 8, 16, 0.76);
  backdrop-filter: blur(5px);
  animation: help-backdrop-in 180ms ease-out;
}

.help-dialog-card {
  max-height: min(820px, calc(100vh - 32px));
  overflow: auto;
  scrollbar-gutter: stable;
}

.help-dialog-header {
  position: sticky;
  z-index: 2;
  top: 0;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 20px;
  padding: 22px 24px 18px;
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(circle at 12% 0%, rgba(34, 211, 238, 0.12), transparent 38%),
    color-mix(in srgb, var(--surface) 96%, transparent);
  backdrop-filter: blur(12px);
}

.help-dialog-header h2 {
  margin: 3px 0 7px;
  font-size: clamp(20px, 3vw, 28px);
  letter-spacing: -0.025em;
}

.help-dialog-header p:last-child {
  max-width: 620px;
  margin: 0;
  color: var(--muted);
  line-height: 1.5;
}

.help-close-button {
  flex: 0 0 auto;
  width: 34px;
  height: 34px;
  border: 1px solid var(--line);
  border-radius: 5px;
  padding: 0;
  color: var(--text);
  background: var(--surface-raised);
  cursor: pointer;
  font-size: 24px;
  line-height: 1;
}

.help-close-button:hover,
.help-close-button:focus-visible {
  border-color: var(--accent);
  color: var(--accent);
}

.help-close-button:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.help-steps {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin: 0;
  padding: 18px 24px;
  list-style: none;
}

.help-steps li {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 11px;
  min-width: 0;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: color-mix(in srgb, var(--surface-raised) 78%, transparent);
}

.help-step-number {
  display: grid;
  place-items: center;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  color: #071016;
  background: var(--accent);
  box-shadow: 0 0 18px rgba(34, 211, 238, 0.2);
  font-size: 12px;
  font-weight: 800;
}

.help-steps h3 {
  margin: 1px 0 5px;
  font-size: 14px;
}

.help-steps p {
  margin: 0;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.5;
}

.help-steps strong {
  color: var(--text);
}

.help-tip {
  display: flex;
  gap: 10px;
  margin: 0 24px 18px;
  padding: 11px 13px;
  border-left: 3px solid var(--primary);
  color: var(--muted);
  background: color-mix(in srgb, var(--primary) 9%, var(--subtle-bg));
  font-size: 12px;
  line-height: 1.45;
}

.help-tip strong {
  flex: 0 0 auto;
  color: var(--text);
}

.help-dialog-footer {
  position: sticky;
  bottom: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 24px;
  border-top: 1px solid var(--line);
  background: color-mix(in srgb, var(--surface) 96%, transparent);
  backdrop-filter: blur(12px);
}

.help-dialog-footer span {
  color: var(--muted);
  font-size: 11px;
}

.help-dialog-footer kbd {
  border: 1px solid var(--line);
  border-bottom-width: 2px;
  border-radius: 3px;
  padding: 2px 5px;
  color: var(--text);
  background: var(--surface-raised);
  font: inherit;
}

@keyframes help-dialog-in {
  from {
    opacity: 0;
    transform: translateY(16px) scale(0.98);
  }
}

@keyframes help-backdrop-in {
  from { opacity: 0; }
}

@media (max-width: 660px) {
  .app-title span,
  .help-button span:last-child {
    display: none;
  }

  .help-button {
    width: 30px;
    padding: 0;
    justify-content: center;
  }

  .help-dialog {
    width: calc(100vw - 16px);
    max-height: calc(100dvh - 16px);
    border-radius: 7px;
  }

  .help-dialog-card {
    max-height: calc(100dvh - 16px);
  }

  .help-dialog-header {
    padding: 17px 16px 14px;
  }

  .help-steps {
    grid-template-columns: 1fr;
    padding: 14px 16px;
  }

  .help-tip {
    flex-direction: column;
    gap: 4px;
    margin: 0 16px 14px;
  }

  .help-dialog-footer {
    padding: 12px 16px;
  }

  .help-dialog-footer span {
    display: none;
  }

  .help-dialog-footer .primary-button {
    width: 100%;
  }
}

@media (prefers-reduced-motion: reduce) {
  .help-dialog[open],
  .help-dialog::backdrop {
    animation-duration: 1ms;
  }
}

.theme-toggle:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.theme-toggle-thumb {
  position: absolute;
  z-index: 0;
  top: 3px;
  left: 3px;
  width: 26px;
  height: 22px;
  border: 1px solid var(--line);
  border-radius: 3px;
  background: var(--toggle-thumb);
  box-shadow: 0 2px 6px rgba(15, 23, 42, 0.13);
  transition: transform 180ms ease;
}

:root[data-theme="dark"] .theme-toggle-thumb {
  transform: translateX(28px);
}

.theme-icon {
  position: relative;
  z-index: 1;
  width: 16px;
  height: 16px;
  margin: auto;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
  pointer-events: none;
}

.moon-icon path {
  fill: currentColor;
  stroke: none;
}

.sun-icon,
:root[data-theme="dark"] .moon-icon {
  color: var(--primary);
}

.moon-icon,
:root[data-theme="dark"] .sun-icon {
  color: var(--muted);
}

.topbar,
.panel {
  background: var(--panel);
}

.file-menu {
  background: var(--menu-bg);
}

.file-menu button + button {
  border-color: var(--line);
}

.field input,
.field textarea,
.view-switcher {
  color: var(--text);
  background: var(--control-bg);
}

.field input::placeholder,
.field textarea::placeholder {
  color: var(--placeholder);
}

.primary-button,
.view-button.active,
.file-button {
  color: #ffffff;
}

.ghost-button {
  color: var(--text);
  background: var(--surface-raised);
}

.ghost-button:hover {
  background: var(--control-hover);
}

.danger-button {
  color: var(--danger-text);
  border-color: var(--danger-border);
  background: var(--danger-bg);
}

.source-banner,
.status-card,
.legend,
.timeline-card {
  background: var(--subtle-bg);
}

.player-frame {
  background:
    radial-gradient(circle at center, rgba(139, 92, 246, 0.18), transparent 55%),
    var(--player-bg);
}

.player-placeholder {
  color: var(--player-muted);
}

.dancer-name-input {
  color: var(--text);
}

.dancer-name-input:hover {
  background: var(--control-hover);
}

.dancer-name-input:focus {
  background: var(--control-bg);
}

.pose-control select {
  color: var(--text);
  background: var(--surface-raised);
}

.transition-toolbar {
  background: linear-gradient(135deg, rgba(139, 92, 246, 0.12), rgba(34, 211, 238, 0.05));
}

.timeline-drawer {
  background: var(--subtle-bg);
}

.timeline-card.active {
  background: var(--active-bg);
}

.transition-card {
  color: var(--text);
  background: var(--transition-bg);
}

.transition-card:hover,
.transition-card.active {
  background: var(--transition-hover);
}

.stage-surface {
  background:
    radial-gradient(circle at 50% 4%, rgba(34, 211, 238, 0.09), transparent 36%),
    var(--stage-bg);
  box-shadow: var(--stage-shadow);
}

.stage-surface::before {
  background:
    repeating-linear-gradient(
      to right,
      var(--stage-grid-x) 0,
      var(--stage-grid-x) 1px,
      transparent 1px,
      transparent 10%
    ),
    repeating-linear-gradient(
      to bottom,
      var(--stage-grid-y) 0,
      var(--stage-grid-y) 1px,
      transparent 1px,
      transparent 12.5%
    ),
    linear-gradient(180deg, transparent, var(--stage-wash));
}

.stage-surface.view-3d::before {
  background:
    linear-gradient(78deg, transparent 49.8%, var(--stage-grid-x) 50%, transparent 50.2%),
    linear-gradient(84deg, transparent 49.8%, var(--stage-grid-x) 50%, transparent 50.2%),
    linear-gradient(96deg, transparent 49.8%, var(--stage-grid-x) 50%, transparent 50.2%),
    linear-gradient(102deg, transparent 49.8%, var(--stage-grid-x) 50%, transparent 50.2%),
    repeating-linear-gradient(
      to bottom,
      var(--stage-grid-y) 0,
      var(--stage-grid-y) 1px,
      transparent 1px,
      transparent 11%
    ),
    linear-gradient(180deg, transparent, var(--stage-wash));
  box-shadow: var(--stage-shadow);
}

.end-node {
  background: var(--overlay-bg);
}

/* Editing tools and musical timeline */
.history-actions {
  display: flex;
  gap: 6px;
  margin-left: auto;
}

.appbar-button {
  min-height: 30px;
  border: 1px solid var(--line);
  border-radius: 3px;
  padding: 4px 9px;
  color: var(--text);
  background: var(--surface-raised);
  cursor: pointer;
}

.appbar-button:disabled {
  opacity: 0.42;
  cursor: default;
}

.editor-tools {
  border: 1px solid var(--line);
  border-radius: 3px;
  background: var(--subtle-bg);
}

.editor-tools summary {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 9px 11px;
  cursor: pointer;
}

.editor-tools summary small,
.tool-row > span {
  color: var(--muted);
}

.editor-tools-content {
  display: grid;
  gap: 8px;
  border-top: 1px solid var(--line);
  padding: 10px;
}

.tool-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 7px;
}

.tool-row > strong {
  min-width: 68px;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.inline-field {
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 7px;
}

.field select,
.grid-size-field input {
  min-height: 30px;
  border: 1px solid var(--line);
  border-radius: 3px;
  padding: 4px 8px;
  color: var(--text);
  background: var(--control-bg);
}

.check-control {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  color: var(--muted);
  font-size: 0.8rem;
}

.grid-size-field {
  display: inline-flex;
  flex-direction: row;
  align-items: center;
  gap: 6px;
}

.grid-size-field input {
  width: 60px;
}

.stage-surface.grid-hidden::before {
  background: var(--stage-bg);
}

.stage-surface.view-2d:not(.grid-hidden)::before {
  background:
    repeating-linear-gradient(
      to right,
      var(--stage-grid-x) 0,
      var(--stage-grid-x) 1px,
      transparent 1px,
      transparent var(--editor-grid-size, 5%)
    ),
    repeating-linear-gradient(
      to bottom,
      var(--stage-grid-y) 0,
      var(--stage-grid-y) 1px,
      transparent 1px,
      transparent var(--editor-grid-size, 5%)
    ),
    linear-gradient(180deg, transparent, var(--stage-wash));
}

.template-preview-marker {
  position: absolute;
  z-index: 120;
  display: grid;
  place-items: center;
  width: 30px;
  height: 30px;
  translate: -50% -50%;
  border: 2px dashed var(--accent);
  border-radius: 50%;
  color: var(--accent);
  background: color-mix(in srgb, var(--stage-bg) 70%, transparent);
  font-size: 0.72rem;
  font-weight: 800;
  pointer-events: none;
}

.count-timeline-panel {
  margin: 12px 18px 18px;
  overflow: hidden;
}

.count-timeline-header,
.count-status-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 12px;
}

.count-timeline-header h2 {
  margin: 1px 0 0;
  font-size: 1rem;
}

.count-timeline-controls {
  display: flex;
  flex-wrap: wrap;
  align-items: end;
  justify-content: flex-end;
  gap: 7px;
}

.count-timeline-controls .field input,
.count-timeline-controls .field select {
  width: 96px;
}

.count-status-row {
  justify-content: flex-start;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.78rem;
}

.count-status-row strong {
  color: var(--accent);
  min-width: 112px;
}

.count-status-row small {
  margin-left: auto;
}

.count-timeline-viewport {
  overflow-x: auto;
  border-top: 1px solid var(--line);
  background: var(--stage-bg);
}

.count-timeline-track {
  position: relative;
  min-width: 100%;
  height: 116px;
  cursor: ew-resize;
  user-select: none;
}

.count-timeline-groups,
.section-markers,
.formation-cue-markers {
  position: absolute;
  inset: 0;
}

.count-beat {
  position: absolute;
  inset-block: 0;
  border-left: 1px solid var(--line);
  padding: 7px 4px;
  color: var(--muted);
  font-size: 0.68rem;
}

.count-beat.group-start {
  border-left: 2px solid var(--primary);
  color: var(--text);
  font-weight: 800;
}

.section-marker,
.formation-cue-marker {
  position: absolute;
  translate: -1px 0;
  max-width: 150px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 2px;
  padding: 3px 6px;
  color: var(--text);
  background: var(--surface-raised);
  text-overflow: ellipsis;
  white-space: nowrap;
  cursor: pointer;
}

.section-marker {
  top: 33px;
  border-color: color-mix(in srgb, var(--accent) 55%, var(--line));
  color: var(--accent);
  font-size: 0.67rem;
}

.formation-cue-marker {
  top: 66px;
  border-left: 4px solid var(--primary);
  font-size: 0.72rem;
}

.formation-cue-marker.active {
  border-color: var(--accent);
  background: var(--active-bg);
}

.timeline-playhead {
  position: absolute;
  z-index: 20;
  inset-block: 0;
  width: 2px;
  background: var(--danger);
  pointer-events: none;
}

.timeline-playhead::before {
  position: absolute;
  top: 0;
  left: 50%;
  width: 9px;
  height: 9px;
  background: var(--danger);
  content: "";
  translate: -50% 0;
  clip-path: polygon(0 0, 100% 0, 50% 100%);
}

@media (max-width: 800px) {
  .history-actions span,
  .count-status-row small {
    display: none;
  }

  .count-timeline-panel {
    margin-inline: 10px;
  }

  .count-timeline-header,
  .count-status-row {
    align-items: flex-start;
    flex-direction: column;
  }

  .count-timeline-controls {
    justify-content: flex-start;
  }
}

/* Compact stage controls and embedded music map */
.stage-history-actions {
  flex: 0 0 auto;
  margin-left: 0;
}

.stage-layout {
  grid-template-columns: 200px minmax(0, 1fr);
}

.stage-canvas {
  position: relative;
  min-width: 0;
}

.stage-canvas .stage-surface {
  width: 100%;
}

.formation-note-banner {
  position: absolute;
  z-index: 260;
  top: 12px;
  left: 50%;
  width: min(560px, calc(100% - 32px));
  padding: 10px 13px;
  border: 1px solid color-mix(in srgb, var(--accent) 46%, var(--line));
  border-radius: 4px;
  color: var(--text);
  background: color-mix(in srgb, var(--surface) 92%, transparent);
  box-shadow: 0 12px 30px rgba(2, 6, 23, 0.34);
  opacity: 0;
  pointer-events: none;
  transform: translate(-50%, calc(-100% - 24px));
  transition: opacity 180ms ease, transform 320ms cubic-bezier(0.22, 1, 0.36, 1);
}

.formation-note-banner.visible {
  opacity: 1;
  transform: translate(-50%, 0);
}

.formation-note-banner strong {
  color: var(--accent);
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.formation-note-banner p {
  margin: 3px 0 0;
  white-space: pre-wrap;
}

.swatch {
  position: relative;
  overflow: hidden;
  cursor: pointer;
}

.swatch span {
  position: relative;
  z-index: 1;
  pointer-events: none;
}

.dancer-color-input {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  padding: 0;
  border: 0;
  opacity: 0;
  cursor: pointer;
}

.swatch:focus-within {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.pose-control {
  grid-column: 2;
  min-width: 0;
  padding: 3px 0 1px;
}

.pose-control select {
  width: 100%;
  padding-inline: 7px 22px;
  font-size: 11px;
}

.embedded-count-timeline {
  min-width: 0;
  margin: 2px 0 0;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: var(--subtle-bg);
}

.embedded-count-timeline .count-timeline-header {
  align-items: flex-start;
  flex-direction: column;
  padding: 9px 10px;
}

.embedded-count-timeline .count-timeline-controls {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  width: 100%;
}

.embedded-count-timeline .count-timeline-controls .field input,
.embedded-count-timeline .count-timeline-controls .field select {
  width: 100%;
}

.embedded-count-timeline .count-timeline-controls button:last-child {
  grid-column: span 2;
}

.embedded-count-timeline .count-status-row {
  flex-wrap: wrap;
  padding: 8px 10px;
}

.embedded-count-timeline .count-status-row small {
  flex-basis: 100%;
  margin-left: 0;
}

@media (max-width: 760px) {
  .stage-canvas {
    order: 1;
  }

  .legend {
    order: 2;
  }

  .embedded-count-timeline .count-timeline-controls {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .embedded-count-timeline .count-timeline-controls button:last-child {
    grid-column: auto;
  }
}

@media (prefers-reduced-motion: reduce) {
  .formation-note-banner {
    transition-duration: 1ms;
  }
}

.media-source-group {
  display: grid;
  gap: 5px;
}

.media-source-group .field {
  display: block;
}

.media-source-group input {
  min-width: 0;
  min-height: 35px;
  border: 1px solid var(--line);
  border-radius: 3px;
  padding: 8px 9px;
  color: var(--text);
  background: var(--control-bg);
  outline: none;
}

.media-source-group input:focus {
  border-color: var(--primary);
  box-shadow: inset 3px 0 0 var(--primary);
}

.stage-controls {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  align-items: end;
}

@media (min-width: 1350px) {
  .stage-controls {
    grid-template-columns: minmax(0, 1fr) 106px minmax(0, 1fr) 205px;
  }
}

.cue-time-field label {
  color: var(--muted);
}

.cue-time-row {
  display: flex;
  gap: 5px;
  min-width: 0;
}

.cue-time-row input {
  flex: 1;
  min-width: 0;
}

.cue-time-row button {
  flex: 0 0 auto;
  white-space: nowrap;
}

.timeline-header {
  align-items: center;
  flex-direction: row;
  flex-wrap: wrap;
}

.timeline-heading {
  align-items: center;
}

.timeline-actions {
  width: auto;
  justify-content: flex-end;
}

.dancer-roster {
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-width: 0;
}

.dancer-roster .legend {
  flex: 1;
  min-height: 0;
}

.workspace-subheading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 6px;
  min-height: 17px;
}

.workspace-subheading strong {
  color: var(--text);
  font-size: 12px;
}

.stage-playback-bar {
  margin-bottom: 6px;
}

.stage-playback-bar button {
  display: none;
}

.formation-note-banner {
  top: 35px;
}

.primary-button:focus-visible,
.ghost-button:focus-visible,
.danger-button:focus-visible,
.view-button:focus-visible,
.appbar-button:focus-visible,
.timeline-card:focus-visible,
.legend-row:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.timeline-actions button:disabled {
  opacity: 0.45;
  cursor: default;
  transform: none;
}

@media (max-width: 760px) {
  .stage-panel .panel-header-actions .view-switcher {
    flex: 1;
    width: auto;
  }

  .embedded-count-timeline .count-status-row {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr);
    align-items: center;
    gap: 2px 8px;
    padding: 6px 10px;
  }

  .embedded-count-timeline .count-status-row strong {
    min-width: 0;
  }

  .embedded-count-timeline #timelineActiveLabel {
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .embedded-count-timeline #timelineNextLabel {
    display: none;
  }

  .video-meta {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .video-meta .status-card:last-child {
    display: none;
  }

  .video-meta .status-card {
    padding: 6px 8px;
  }

  .source-banner {
    display: flex;
    align-items: baseline;
    gap: 8px;
    padding: 6px 9px;
  }

  .source-banner .status-label {
    margin: 0;
  }

  .source-banner strong {
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .timeline-header {
    align-items: flex-start;
    flex-direction: column;
  }

  .timeline-actions {
    width: 100%;
    justify-content: flex-start;
  }

  .stage-layout {
    grid-template-columns: minmax(0, 1fr);
  }

  .dancer-roster {
    order: 2;
  }

  .stage-playback-bar {
    display: flex;
    min-height: 34px;
    margin-bottom: 4px;
  }

  .stage-playback-bar button {
    display: inline-block;
    min-width: 86px;
    min-height: 30px;
    padding: 4px 10px;
  }

  .stage-playback-bar button:disabled {
    opacity: 0.5;
    cursor: default;
  }

  .formation-note-banner {
    top: 50px;
  }
}

@media (max-width: 600px) {
  .stage-controls .cue-time-field {
    grid-column: 1 / -1;
  }

  .media-source-group .url-row {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .media-source-group .url-row input {
    grid-column: 1 / -1;
  }

  .media-source-group .url-row button {
    width: 100%;
  }
}