.container {
  display: flex;
  flex-direction: column;
  flex: 1;
  min-height: 0;
  background: #1a1a1a;
  border-top: 1px solid #333;
  overflow: hidden;
}

.toolbar {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 4px 8px;
  background: #222;
  border-bottom: 1px solid #333;
  flex-shrink: 0;
}

.tbBtn {
  background: #2d2d2d;
  border: 1px solid #404040;
  color: #bbb;
  border-radius: 3px;
  padding: 3px 8px;
  font-size: 11px;
  transition: background 0.1s;
}
.tbBtn:hover:not(:disabled) { background: #3a3a3a; color: #fff; }
.tbBtn:disabled { opacity: 0.3; cursor: default; }

.spacer { flex: 1; }

.zoomLabel { font-size: 11px; color: #666; margin-right: 2px; }

.scroll {
  flex: 1;
  overflow: auto;
  position: relative;
  cursor: default;
}

/* ── Ruler ────────────────────────────────────────────────────── */
.ruler {
  display: flex;
  height: 22px;
  background: #212121;
  border-bottom: 1px solid #333;
  position: sticky;
  top: 0;
  z-index: 10;
  user-select: none;
  cursor: crosshair;
}

.tick {
  position: absolute;
  top: 0;
  bottom: 0;
  width: 1px;
  background: #444;
}

.tickLabel {
  position: absolute;
  top: 3px;
  left: 3px;
  font-size: 9px;
  color: #666;
  white-space: nowrap;
}

/* ── Layers area ──────────────────────────────────────────────── */
.layersArea {
  position: relative;
}

.playhead {
  position: absolute;
  top: 0;
  bottom: 0;
  width: 2px;
  background: #e05050;
  z-index: 20;
  pointer-events: none;
}

.gridLine {
  position: absolute;
  top: 0;
  bottom: 0;
  width: 1px;
  background: rgba(255,255,255,0.04);
  pointer-events: none;
}

/* ── Layer row ────────────────────────────────────────────────── */
.row {
  position: absolute;
  left: 0;
  right: 0;
  height: 32px;
  display: flex;
  align-items: center;
  border-bottom: 1px solid #2a2a2a;
  cursor: pointer;
  transition: background 0.1s;
}
.row:hover { background: rgba(255,255,255,0.03); }
.rowSelected { background: rgba(91,155,213,0.08); }

.rowLabel {
  position: absolute;
  left: 0;
  width: 140px;
  height: 100%;
  display: flex;
  align-items: center;
  padding: 0 8px;
  background: #1e1e1e;
  border-right: 1px solid #2a2a2a;
  z-index: 5;
  overflow: hidden;
  flex-shrink: 0;
}

.layerName {
  font-size: 11px;
  color: #bbb;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* ── Segment bar ──────────────────────────────────────────────── */
.bar {
  position: absolute;
  height: 22px;
  border-radius: 3px;
  cursor: grab;
  top: 5px;
  border: 1px solid rgba(255,255,255,0.15);
  box-sizing: border-box;
  min-width: 4px;
}
.bar:active { cursor: grabbing; }

.handle {
  position: absolute;
  top: 0;
  bottom: 0;
  width: 6px;
  cursor: ew-resize;
  z-index: 2;
}
.handleLeft { left: 0; border-radius: 3px 0 0 3px; background: rgba(255,255,255,0.15); }
.handleRight { right: 0; border-radius: 0 3px 3px 0; background: rgba(255,255,255,0.15); }

/* ── Subtitle row ─────────────────────────────────────────────── */
.subtitleRow {
  position: absolute;
  left: 0;
  right: 0;
  height: 14px;
  border-bottom: 1px solid #2a2a2a;
}

.subtitleLabel {
  position: absolute;
  left: 0;
  width: 140px;
  height: 100%;
  background: #1e1e1e;
  border-right: 1px solid #2a2a2a;
  display: flex;
  align-items: center;
  padding: 0 8px;
  font-size: 9px;
  color: #555;
  z-index: 5;
}

.subtitleBlock {
  position: absolute;
  top: 2px;
  height: 10px;
  background: #8a6040;
  border-radius: 2px;
  border: 1px solid #aa7050;
  opacity: 0.8;
}