.timeline-root {
  position: relative;
  min-height: 0;
  overflow: hidden;
  background: var(--panel-2);
}
.timeline-review-layout { position: relative; min-height: 0; height: calc(100% - 42px); }
.timeline-review-layout .timeline-root { height: 100%; }
.review-panel { position: absolute; top: 0; right: 0; bottom: 0; z-index: 30; width: min(360px, 42vw); overflow: auto; padding: 10px; border-left: 1px solid var(--line); background: #f7fcff; box-shadow: -8px 0 20px rgb(15 23 42 / 18%); }
.review-panel[hidden] { display: none; }
.review-drawer-header { position: sticky; top: -10px; z-index: 1; display: flex; align-items: center; justify-content: space-between; gap: 8px; margin: -10px -10px 10px; padding: 10px; border-bottom: 1px solid var(--line); background: #f7fcff; }
.review-panel h3 { margin: 0 0 8px; color: #075985; }
.review-composer { display: grid; gap: 6px; padding-bottom: 10px; border-bottom: 1px solid var(--line); }
.review-composer textarea { min-height: 64px; resize: vertical; }
.review-marker-list { display: grid; gap: 8px; padding-top: 8px; }
.review-card { padding: 8px; border: 1px solid #b8dce5; border-left: 4px solid var(--pink); border-radius: 6px; background: white; }
.review-card.resolved { opacity: .68; border-left-color: #65a30d; }
.review-card p { margin: 6px 0; white-space: pre-wrap; overflow-wrap: anywhere; }
.review-time { padding: 2px 6px; margin-right: 6px; }
.review-state { float: right; font-size: 12px; color: #52717a; }
.review-reply { margin: 4px 0 4px 10px; padding: 5px; background: #eef8fc; border-radius: 4px; }
.review-actions, .review-card form { display: flex; gap: 5px; margin-top: 6px; }
.review-card form input { min-width: 0; flex: 1; }
.review-marker-pin { position: absolute; top: 2px; width: 14px; height: 22px; z-index: 12; transform: translateX(-7px); padding: 0; border: 0; clip-path: polygon(20% 0,80% 0,100% 60%,50% 100%,0 60%); background: var(--pink); }
.review-marker-pin.resolved { background: #65a30d; }
.review-marker-popover { position: absolute; top: 34px; z-index: 45; width: 240px; padding: 9px; border: 1px solid var(--pink); border-radius: 7px; background: white; box-shadow: 0 8px 24px rgba(19,33,58,.2); }
.review-marker-popover form { display: grid; gap: 6px; }
.review-marker-popover textarea { min-height: 70px; resize: vertical; }
.review-marker-heading { margin: 12px 0 0; }
@media (max-width: 1050px) { .review-panel { width: min(320px, 72vw); } }
.timeline-viewport { position: absolute; inset: 0; overflow: auto; background: #f8fdff; }
.timeline-content { position: relative; min-height: 360px; }
.timeline-ruler {
  position: sticky;
  top: 0;
  height: 34px;
  z-index: 10;
  background: #e7f5fb;
  border-bottom: 1px solid var(--line);
}
.timeline-track { position: absolute; left: 0; right: 0; height: 64px; border-bottom: 1px solid var(--line); }
.timeline-track.source { top: 44px; }
.timeline-track.subtitle { top: 108px; height: 38px; }
.timeline-track.dub1 { top: 160px; }
.timeline-track.dub2 { top: 224px; }
.timeline-track.dub3 { top: 288px; }
.track-label {
  position: sticky;
  left: 8px;
  width: 58px;
  z-index: 20;
  padding: 5px;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: var(--panel);
  color: #087a9d;
  text-align: center;
}
.track-controls { display: flex; justify-content: center; gap: 2px; margin-top: 3px; }
.track-toggle {
  width: 22px;
  min-width: 22px;
  height: 20px;
  padding: 0;
  border-color: #b8dce5;
  background: #f8fdff;
  color: #52717a;
  font-size: 10px;
}
.track-toggle.active { border-color: var(--pink); background: #ffe5f1; color: #b51862; }
.audio-block {
  position: absolute;
  height: 42px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, .7);
  border-radius: 4px;
  background: var(--blue);
  color: #ffffff;
  cursor: grab;
  user-select: none;
}
.audio-block.source { background: #8fd8c4; border-color: #6ec5ad; color: #164f43; cursor: default; }
.audio-block.subtitle { height: 30px; background: #a5dfed; border-color: #8bcfdf; color: var(--text); cursor: pointer; }
.audio-block.smoke-audio {
  background: repeating-linear-gradient(90deg, rgba(255,255,255,.18) 0 2px, rgba(255,255,255,0) 2px 9px), linear-gradient(90deg, #00aeea, #37cae9);
}
.audio-block.selected { outline: 2px solid var(--pink); box-shadow: 0 0 0 2px rgba(255, 79, 163, .22); }
.audio-block.resizing { outline: 2px solid var(--pink); box-shadow: 0 0 0 2px rgba(255, 79, 163, .22); }
.audio-block.overlap { border-top: 3px solid var(--pink); box-shadow: inset 0 3px 0 rgba(255, 79, 163, .35); }
.audio-block .label {
  position: absolute;
  top: 3px;
  right: 14px;
  left: 8px;
  z-index: 3;
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
  font-size: 11px;
  text-shadow: 0 1px 2px rgba(19, 33, 58, .55);
}
.audio-block.has-stretch-rate .label { top: 18px; }
.stretch-rate-badge {
  position: absolute;
  top: 2px;
  left: 3px;
  z-index: 6;
  min-width: 31px;
  padding: 1px 4px;
  border: 1px solid rgba(255,255,255,.8);
  border-radius: 8px;
  color: #fff;
  font-size: 9px;
  font-weight: 700;
  line-height: 12px;
  text-align: center;
  pointer-events: none;
  box-shadow: 0 1px 2px rgba(0,0,0,.18);
}
.stretch-rate-badge.safe { background: #159947; }
.stretch-rate-badge.caution { background: #d89400; }
.stretch-rate-badge.limit { background: #d9363e; }
.audio-block canvas, .audio-block .block-waveform { position: absolute; inset: 0; width: 100%; height: 100%; opacity: .9; pointer-events: none; }
.audio-block .block-waveform.waveform-loading { background: linear-gradient(90deg, rgba(255,255,255,.06), rgba(255,255,255,.24), rgba(255,255,255,.06)); background-size: 200% 100%; animation: waveform-loading 1s linear infinite; }
.audio-block .block-waveform.waveform-empty { opacity: .35; background: repeating-linear-gradient(90deg, transparent 0 5px, rgba(255,255,255,.2) 5px 7px); }
@keyframes waveform-loading { from { background-position: 200% 0; } to { background-position: -200% 0; } }
.audio-block.source .block-waveform { background: #8fd8c4; }
.right-resize-handle {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  width: min(12px, 35%);
  z-index: 5;
  cursor: ew-resize;
  background: linear-gradient(90deg, rgba(255,79,163,0), rgba(255,79,163,.28));
}
.right-resize-handle::after {
  content: "";
  position: absolute;
  top: 10px;
  right: 2px;
  width: 3px;
  height: 22px;
  border-right: 2px solid rgba(255,255,255,.85);
  border-left: 2px solid rgba(255,255,255,.85);
}
.playhead { position: absolute; top: 0; bottom: 0; width: 2px; z-index: 30; background: var(--pink); pointer-events: none; }