/* === Lyric Editor — Scoped Dark Pro Tool Theme ===
   All rules scoped under .le-root to isolate from main app styles.
   CSS custom properties defined on .le-root override :root within this subtree.
*/

.le-root {
  /* Color tokens */
  --bg-0: #0a0b0d;
  --bg-1: #111318;
  --bg-2: #171a21;
  --bg-3: #1d2029;
  --bg-4: #252832;
  --bg-hover: #2a2e3a;
  --bg-sel: #1f3a4d;
  --bg-sel-strong: #2a5378;

  --line: #23262f;
  --line-strong: #30343f;

  --fg-0: #e8eaef;
  --fg-1: #b6bac4;
  --fg-2: #7a7f8c;
  --fg-3: #565a66;
  --fg-dim: #3f434d;

  --cyan: #4dd0e1;
  --cyan-dim: #2b8a99;
  --cyan-bg: rgba(77, 208, 225, 0.08);

  --amber: #f5a623;
  --amber-dim: #a86f15;
  --amber-bg: rgba(245, 166, 35, 0.1);

  --red: #e05454;
  --green: #6bd088;
  --purple: #9d7bdb;
  --pink: #e37eb0;
  --blue: #5d8ff5;

  --section-verse: #5d8ff5;
  --section-chorus: #e37eb0;
  --section-prechorus: #9d7bdb;
  --section-bridge: #6bd088;
  --section-outro: #f5a623;
  --section-intro: #4dd0e1;

  --shadow: 0 4px 14px rgba(0,0,0,0.4), 0 1px 2px rgba(0,0,0,0.3);

  --mono: 'JetBrains Mono', 'SF Mono', ui-monospace, Menlo, Consolas, monospace;
  --sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  /* App shell layout */
  display: grid;
  grid-template-rows: 40px 1fr 72px;
  height: 100vh;
  width: 100vw;
  position: fixed;
  top: 0; left: 0;
  z-index: 900;
  background: var(--bg-0);
  font-family: var(--sans);
  font-size: 12px;
  line-height: 1.4;
  color: var(--fg-0);
  -webkit-font-smoothing: antialiased;
  user-select: none;
}

.le-root * { box-sizing: border-box; }

.le-root button {
  font-family: inherit; font-size: inherit; color: inherit;
  background: transparent; border: none; cursor: pointer; padding: 0;
}

.le-root input, .le-root textarea {
  font-family: inherit; font-size: inherit; color: var(--fg-0);
  background: var(--bg-1); border: 1px solid var(--line-strong);
  padding: 4px 6px; border-radius: 3px; outline: none;
}
.le-root input:focus, .le-root textarea:focus {
  border-color: var(--cyan-dim);
  box-shadow: 0 0 0 2px var(--cyan-bg);
}

.le-root .mono { font-family: var(--mono); font-variant-numeric: tabular-nums; }

/* === Top bar === */
.le-root .topbar {
  display: flex; align-items: center;
  background: var(--bg-1);
  border-bottom: 1px solid var(--line);
  padding: 0 12px;
  gap: 12px;
}
.le-root .topbar-brand {
  display: flex; align-items: center; gap: 8px;
  font-weight: 600; font-size: 12px; letter-spacing: 0.02em;
  color: var(--fg-0);
}
.le-root .topbar-brand-mark {
  width: 18px; height: 18px;
  background: linear-gradient(135deg, var(--cyan) 0%, var(--cyan-dim) 100%);
  border-radius: 4px;
  display: flex; align-items: center; justify-content: center;
  color: var(--bg-0); font-weight: 700; font-size: 11px;
}
.le-root .topbar-song {
  color: var(--fg-1);
  display: flex; align-items: center; gap: 8px;
  padding: 4px 8px;
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: 4px;
}
.le-root .topbar-song .title { color: var(--fg-0); font-weight: 500; }
.le-root .topbar-song .artist { color: var(--fg-2); }
.le-root .topbar-song .sep { color: var(--fg-dim); }

.le-root .topbar-spacer { flex: 1; }

.le-root .topbar-btn {
  height: 26px; padding: 0 10px;
  border: 1px solid var(--line-strong);
  background: var(--bg-2);
  border-radius: 4px; color: var(--fg-1);
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 11px;
}
.le-root .topbar-btn:hover { background: var(--bg-3); color: var(--fg-0); }
.le-root .topbar-btn.primary {
  background: var(--cyan-dim); color: var(--bg-0); border-color: var(--cyan-dim); font-weight: 600;
}
.le-root .topbar-btn.primary:hover { background: var(--cyan); }
.le-root .topbar-btn.danger { color: var(--red); }
.le-root .topbar-btn:disabled { opacity: 0.4; cursor: not-allowed; }

.le-root .topbar-status {
  font-size: 11px; color: var(--fg-2);
  display: flex; align-items: center; gap: 6px;
  padding: 0 8px;
  border-left: 1px solid var(--line);
  border-right: 1px solid var(--line);
  height: 26px;
}
.le-root .topbar-status .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--green); }
.le-root .topbar-status.dirty .dot { background: var(--amber); }

/* === Body: tree + detail === */
.le-root .le-body {
  display: grid;
  grid-template-columns: 420px 1fr;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
}
.le-root .panel {
  background: var(--bg-1);
  overflow: hidden;
  display: flex; flex-direction: column;
}
.le-root .panel + .panel { border-left: 1px solid var(--line); }
.le-root .panel-header {
  flex: 0 0 auto;
  height: 32px;
  padding: 0 10px;
  display: flex; align-items: center; justify-content: space-between;
  background: var(--bg-2);
  border-bottom: 1px solid var(--line);
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--fg-2);
  font-weight: 600;
}
.le-root .panel-header-actions { display: flex; gap: 4px; }
.le-root .panel-header-btn {
  width: 22px; height: 22px; border-radius: 3px;
  display: flex; align-items: center; justify-content: center;
  color: var(--fg-2);
}
.le-root .panel-header-btn:hover { background: var(--bg-3); color: var(--fg-0); }
.le-root .panel-body { flex: 1 1 auto; overflow: auto; }

/* === Tree === */
.le-root .tree {
  padding: 4px 0;
  font-size: 12px;
}
.le-root .tree-row {
  display: flex; align-items: center;
  height: 24px;
  padding: 0 8px;
  cursor: pointer;
  position: relative;
  gap: 4px;
}
.le-root .tree-row:hover { background: var(--bg-2); }
.le-root .tree-row.selected { background: var(--bg-sel); }
.le-root .tree-row.selected::before {
  content: ''; position: absolute; left: 0; top: 0; bottom: 0;
  width: 2px; background: var(--cyan);
}
.le-root .tree-row.playing { background: var(--amber-bg); }
.le-root .tree-chevron {
  width: 14px; height: 14px;
  display: flex; align-items: center; justify-content: center;
  color: var(--fg-3); flex-shrink: 0;
  transition: transform 0.12s ease;
}
.le-root .tree-chevron.open { transform: rotate(90deg); }
.le-root .tree-chevron.leaf { visibility: hidden; }
.le-root .tree-icon {
  width: 14px; height: 14px; flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
  font-family: var(--mono); font-size: 9px; font-weight: 700;
  border-radius: 2px;
  color: var(--fg-0);
}
.le-root .tree-icon.song     { background: var(--cyan-dim); }
.le-root .tree-icon.section  { background: #3d4759; color: var(--fg-0); }
.le-root .tree-icon.paragraph{ background: #2d3440; color: var(--fg-1); }
.le-root .tree-icon.sentence { background: transparent; border: 1px solid var(--line-strong); color: var(--fg-1); }
.le-root .tree-icon.line     { background: transparent; color: var(--fg-2); }
.le-root .tree-icon.word     { background: transparent; color: var(--fg-3); }

.le-root .tree-label {
  flex: 1 1 auto;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
  color: var(--fg-0);
}
.le-root .tree-label .meta { color: var(--fg-2); font-weight: 400; margin-left: 4px; }
.le-root .tree-time {
  flex: 0 0 auto;
  font-family: var(--mono);
  font-size: 10px;
  color: var(--fg-3);
  letter-spacing: 0;
}
.le-root .tree-row.selected .tree-time { color: var(--cyan); }

/* === Detail panel === */
.le-root .detail { padding: 0; overflow: auto; }
.le-root .detail-head {
  padding: 14px 16px 10px;
  border-bottom: 1px solid var(--line);
  background: linear-gradient(180deg, var(--bg-2) 0%, var(--bg-1) 100%);
}
.le-root .detail-crumbs {
  display: flex; align-items: center; gap: 4px;
  font-size: 10px; color: var(--fg-2);
  text-transform: uppercase; letter-spacing: 0.06em;
  margin-bottom: 8px;
}
.le-root .detail-crumbs .sep { color: var(--fg-dim); }
.le-root .detail-crumbs .crumb { cursor: pointer; }
.le-root .detail-crumbs .crumb:hover { color: var(--fg-0); }
.le-root .detail-crumbs .crumb.current { color: var(--cyan); }

.le-root .detail-title {
  display: flex; align-items: baseline; gap: 10px;
  font-size: 18px; font-weight: 600; color: var(--fg-0);
}
.le-root .detail-title .type-tag {
  font-size: 10px; text-transform: uppercase; letter-spacing: 0.08em;
  color: var(--fg-2); font-weight: 600;
}
.le-root .detail-title .id-chip {
  font-family: var(--mono); font-size: 10px;
  color: var(--fg-3); padding: 2px 5px; background: var(--bg-3); border-radius: 2px;
  margin-left: auto; user-select: text;
}

.le-root .detail-meta {
  display: flex; gap: 20px; margin-top: 10px;
  font-size: 11px; color: var(--fg-2);
}
.le-root .detail-meta .item { display: flex; align-items: center; gap: 6px; }
.le-root .detail-meta .k { color: var(--fg-3); font-size: 10px; text-transform: uppercase; letter-spacing: 0.06em; }
.le-root .detail-meta .v { color: var(--fg-0); font-family: var(--mono); }

.le-root .detail-section {
  padding: 14px 16px;
  border-bottom: 1px solid var(--line);
}
.le-root .detail-section-title {
  font-size: 10px; text-transform: uppercase; letter-spacing: 0.08em;
  color: var(--fg-2); font-weight: 600; margin-bottom: 10px;
  display: flex; justify-content: space-between; align-items: center;
}
.le-root .detail-section-title .hint {
  color: var(--fg-3); text-transform: none; letter-spacing: 0; font-weight: 400;
}

/* Timestamp editors */
.le-root .ts-editor {
  display: flex; align-items: center; gap: 8px;
  padding: 8px 10px;
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: 4px;
}
.le-root .ts-editor-label {
  font-size: 10px; text-transform: uppercase; color: var(--fg-2); letter-spacing: 0.06em; min-width: 36px;
}
.le-root .ts-editor input.ts-input {
  flex: 1 1 auto;
  font-family: var(--mono);
  font-size: 13px;
  text-align: center;
  padding: 4px 6px;
}
.le-root .ts-editor .ts-stepper {
  display: flex; flex-direction: column;
}
.le-root .ts-editor .ts-step-btn {
  width: 18px; height: 12px;
  display: flex; align-items: center; justify-content: center;
  color: var(--fg-2); font-size: 8px;
  background: var(--bg-3); border: 1px solid var(--line-strong);
}
.le-root .ts-editor .ts-step-btn:first-child { border-radius: 2px 2px 0 0; border-bottom: none; }
.le-root .ts-editor .ts-step-btn:last-child { border-radius: 0 0 2px 2px; }
.le-root .ts-editor .ts-step-btn:hover { color: var(--cyan); background: var(--bg-4); }

.le-root .ts-pair { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.le-root .ts-duration {
  margin-top: 8px;
  font-size: 11px; color: var(--fg-2);
  display: flex; justify-content: space-between;
  padding: 0 4px;
}
.le-root .ts-duration .v { color: var(--cyan); font-family: var(--mono); }

/* Drag handle range */
.le-root .ts-range {
  margin-top: 12px;
  position: relative;
  height: 40px;
  background: var(--bg-0);
  border: 1px solid var(--line);
  border-radius: 4px;
  overflow: hidden;
}
.le-root .ts-range-track {
  position: absolute; top: 0; bottom: 0; left: 0; right: 0;
  background: repeating-linear-gradient(
    90deg,
    transparent 0, transparent 19px,
    var(--line) 19px, var(--line) 20px
  );
}
.le-root .ts-range-fill {
  position: absolute; top: 4px; bottom: 4px;
  background: var(--cyan-bg);
  border: 1px solid var(--cyan-dim);
  border-radius: 2px;
}
.le-root .ts-range-handle {
  position: absolute; top: 0; bottom: 0; width: 6px;
  background: var(--cyan);
  cursor: ew-resize;
  transition: background 0.1s;
}
.le-root .ts-range-handle:hover,
.le-root .ts-range-handle.dragging { background: #6be8f7; }
.le-root .ts-range-handle.left { border-radius: 2px 0 0 2px; }
.le-root .ts-range-handle.right { border-radius: 0 2px 2px 0; }
.le-root .ts-range-label {
  position: absolute; top: -18px;
  font-family: var(--mono); font-size: 9px; color: var(--cyan);
  white-space: nowrap;
  transform: translateX(-50%);
}
.le-root .ts-range-playhead {
  position: absolute; top: 0; bottom: 0; width: 1px;
  background: var(--amber);
  pointer-events: none;
  box-shadow: 0 0 4px var(--amber);
}

/* Text edit */
.le-root .detail-text-input {
  width: 100%;
  font-size: 14px;
  padding: 8px 10px;
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: 4px;
  font-family: var(--sans);
}
.le-root .detail-text-preview {
  padding: 10px 12px;
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: 4px;
  color: var(--fg-1);
  font-size: 13px;
  line-height: 1.5;
  user-select: text;
  white-space: pre-wrap;
  max-height: 200px; overflow: auto;
}

/* Word list in line detail */
.le-root .word-list { display: flex; flex-direction: column; gap: 2px; }
.le-root .word-row {
  display: grid;
  grid-template-columns: 24px 1fr 100px 100px 40px 28px;
  align-items: center;
  gap: 8px;
  height: 30px;
  padding: 0 8px;
  background: var(--bg-2);
  border: 1px solid transparent;
  border-radius: 3px;
  font-size: 12px;
}
.le-root .word-row.selectable { cursor: pointer; }
.le-root .word-row:hover { background: var(--bg-3); border-color: var(--line-strong); }
.le-root .word-row.selectable:hover {
  box-shadow: inset 2px 0 0 var(--cyan-dim);
}
.le-root .word-row.playing { border-color: var(--amber); box-shadow: 0 0 0 1px var(--amber-bg); }
.le-root .word-row .seq {
  color: var(--fg-3); font-family: var(--mono); font-size: 10px; text-align: center;
  display: flex; align-items: center; justify-content: center;
}
.le-root .word-row .seq.seq-playable { cursor: pointer; border-radius: 3px; }
.le-root .word-row .seq.seq-playable:hover { color: var(--cyan); background: var(--cyan-bg); }
.le-root .word-row.playing .seq { color: var(--amber); }
.le-root .word-row .text-input {
  background: transparent; border: 1px solid transparent;
  padding: 3px 5px; color: var(--fg-0);
  font-size: 13px;
}
.le-root .word-row .text-input:hover { border-color: var(--line-strong); background: var(--bg-1); }
.le-root .word-row .text-input:focus { border-color: var(--cyan-dim); background: var(--bg-0); }
.le-root .word-row .ts-input-small {
  font-family: var(--mono); font-size: 11px;
  background: var(--bg-1); border: 1px solid var(--line);
  padding: 3px 5px; text-align: center; color: var(--cyan);
  width: 100%;
}
.le-root .word-row .ts-input-small:focus { border-color: var(--cyan-dim); }
.le-root .word-row .conf { font-family: var(--mono); font-size: 10px; color: var(--fg-3); text-align: center; }
.le-root .word-row .conf.low { color: var(--amber); }
.le-root .word-row .del-btn { width: 22px; height: 22px; border-radius: 3px; color: var(--fg-3); }
.le-root .word-row .del-btn:hover { background: var(--red); color: white; }

.le-root .word-add-row {
  display: flex; align-items: center; justify-content: center; gap: 6px;
  height: 28px;
  margin-top: 4px;
  background: transparent;
  border: 1px dashed var(--line-strong);
  border-radius: 3px;
  color: var(--fg-2);
  font-size: 11px;
  cursor: pointer;
}
.le-root .word-add-row:hover { border-color: var(--cyan-dim); color: var(--cyan); background: var(--cyan-bg); }

/* Children list */
.le-root .child-list { display: flex; flex-direction: column; gap: 2px; }
.le-root .child-row {
  display: grid;
  grid-template-columns: 24px 1fr 80px 80px 28px;
  gap: 8px;
  align-items: center;
  height: 30px;
  padding: 0 8px;
  background: var(--bg-2);
  border: 1px solid transparent;
  border-radius: 3px;
  font-size: 12px;
  cursor: pointer;
}
.le-root .child-row:hover { background: var(--bg-3); border-color: var(--line-strong); }
.le-root .child-row .idx { color: var(--fg-3); font-family: var(--mono); font-size: 10px; text-align: right; }
.le-root .child-row .text { color: var(--fg-0); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.le-root .child-row .ts { color: var(--cyan); font-family: var(--mono); font-size: 10px; text-align: right; }
.le-root .child-row .del-btn { width: 22px; height: 22px; color: var(--fg-3); border-radius: 3px; }
.le-root .child-row .del-btn:hover { background: var(--red); color: white; }

/* Insert-gap */
.le-root .insert-gap {
  height: 6px;
  position: relative;
  margin: 2px 0;
  cursor: pointer;
  display: flex; align-items: center;
  opacity: 0;
  transition: opacity 0.1s, height 0.15s;
}
.le-root .insert-gap:hover { opacity: 1; height: 22px; }
.le-root .insert-gap.selectable:hover .insert-gap-line { background: var(--amber); }
.le-root .insert-gap-line { position: absolute; left: 0; right: 0; top: 50%; height: 1px; background: var(--cyan-dim); }
.le-root .insert-gap-btn {
  position: relative; z-index: 1;
  margin: 0 auto;
  display: inline-flex; align-items: center; gap: 5px;
  padding: 2px 8px;
  background: var(--bg-1);
  border: 1px solid var(--cyan-dim);
  border-radius: 10px;
  color: var(--cyan);
  font-size: 10px;
  height: 18px;
}
.le-root .insert-gap-btn:hover { background: var(--cyan-dim); color: var(--bg-0); }

/* === Transport === */
.le-root .le-transport {
  background: var(--bg-1);
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 16px; align-items: center;
  padding: 0 16px;
  border-top: 1px solid var(--line);
}
.le-root .transport-controls { display: flex; align-items: center; gap: 6px; }
.le-root .transport-btn {
  width: 36px; height: 36px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  background: var(--bg-2); border: 1px solid var(--line-strong);
  color: var(--fg-0);
}
.le-root .transport-btn:hover { background: var(--bg-3); border-color: var(--fg-3); }
.le-root .transport-btn.play {
  background: var(--cyan); color: var(--bg-0); border-color: var(--cyan);
  width: 44px; height: 44px;
}
.le-root .transport-btn.play:hover { background: #6be8f7; }

.le-root .transport-time {
  font-family: var(--mono); font-size: 14px;
  color: var(--fg-0);
  padding: 6px 10px;
  background: var(--bg-0);
  border: 1px solid var(--line);
  border-radius: 4px;
  min-width: 120px; text-align: center;
  display: flex; flex-direction: column; align-items: center; gap: 2px;
}
.le-root .transport-time .total { color: var(--fg-3); font-size: 11px; }
.le-root .transport-audio-badge {
  font-size: 9px; font-family: var(--mono);
  padding: 1px 5px; border-radius: 8px;
  letter-spacing: 0.04em;
}
.le-root .transport-audio-badge.has-audio {
  color: var(--green); background: rgba(107,208,136,0.12);
  border: 1px solid rgba(107,208,136,0.3);
}
.le-root .transport-audio-badge.no-audio {
  color: var(--fg-3); background: var(--bg-2);
  border: 1px solid var(--line);
}

.le-root .transport-scrub {
  position: relative;
  height: 44px;
  background: var(--bg-0);
  border: 1px solid var(--line);
  border-radius: 4px;
  overflow: hidden;
  cursor: pointer;
}
.le-root .scrub-wave {
  position: absolute; inset: 0;
  display: flex; align-items: center; padding: 0 4px;
}
.le-root .scrub-wave-bar {
  flex: 1 1 0;
  background: var(--fg-dim);
  margin: 0 0.5px;
  border-radius: 0.5px;
}
.le-root .scrub-wave-bar.active { background: var(--cyan); }
.le-root .scrub-playhead {
  position: absolute; top: 0; bottom: 0; width: 2px;
  background: var(--amber);
  pointer-events: none;
  box-shadow: 0 0 6px var(--amber);
}
.le-root .scrub-playhead::after {
  content: ''; position: absolute; top: -2px; left: -4px;
  width: 10px; height: 6px; background: var(--amber);
  clip-path: polygon(0 0, 100% 0, 50% 100%);
}
.le-root .scrub-markers { position: absolute; inset: 0; pointer-events: none; }
.le-root .scrub-marker {
  position: absolute; top: 0; bottom: 0; width: 1px;
  background: rgba(255,255,255,0.08);
}
.le-root .scrub-marker-label {
  position: absolute; top: 2px; left: 3px;
  font-family: var(--mono); font-size: 9px;
  color: var(--fg-3); white-space: nowrap;
  text-transform: uppercase;
  padding: 1px 3px;
  background: rgba(10,11,13,0.8);
  border-radius: 2px;
}

/* === Buttons === */
.le-root .le-btn {
  display: inline-flex; align-items: center; gap: 6px;
  height: 26px; padding: 0 10px;
  font-size: 11px;
  border-radius: 3px;
  border: 1px solid var(--line-strong);
  background: var(--bg-2);
  color: var(--fg-1);
}
.le-root .le-btn:hover { background: var(--bg-3); color: var(--fg-0); }
.le-root .le-btn.primary { background: var(--cyan-dim); color: var(--bg-0); border-color: var(--cyan-dim); font-weight: 600; }
.le-root .le-btn.primary:hover { background: var(--cyan); }
.le-root .le-btn:disabled { opacity: 0.4; cursor: not-allowed; }

.le-root .le-pill {
  display: inline-flex; align-items: center;
  height: 18px; padding: 0 8px;
  font-size: 10px; font-weight: 600;
  border-radius: 9px;
  background: var(--bg-3); color: var(--fg-1);
  text-transform: uppercase; letter-spacing: 0.04em;
}
.le-root .le-pill.cyan { background: var(--cyan-bg); color: var(--cyan); }
.le-root .le-pill.amber { background: var(--amber-bg); color: var(--amber); }
.le-root .le-pill.section-verse { background: rgba(93,143,245,0.15); color: var(--section-verse); }
.le-root .le-pill.section-chorus { background: rgba(227,126,176,0.15); color: var(--section-chorus); }
.le-root .le-pill.section-prechorus,
.le-root .le-pill.section-pre-chorus { background: rgba(157,123,219,0.15); color: var(--section-prechorus); }
.le-root .le-pill.section-bridge { background: rgba(107,208,136,0.15); color: var(--section-bridge); }
.le-root .le-pill.section-outro { background: rgba(245,166,35,0.15); color: var(--section-outro); }
.le-root .le-pill.section-intro { background: rgba(77,208,225,0.15); color: var(--section-intro); }

/* Scrollbars */
.le-root ::-webkit-scrollbar { width: 10px; height: 10px; }
.le-root ::-webkit-scrollbar-track { background: var(--bg-0); }
.le-root ::-webkit-scrollbar-thumb { background: var(--bg-3); border-radius: 5px; border: 2px solid var(--bg-0); }
.le-root ::-webkit-scrollbar-thumb:hover { background: var(--bg-4); }

/* Empty state */
.le-root .le-empty { padding: 40px 24px; text-align: center; color: var(--fg-3); font-size: 12px; }

/* Keyboard hint */
.le-root .le-kbd {
  display: inline-block;
  font-family: var(--mono); font-size: 10px;
  padding: 1px 5px;
  background: var(--bg-3);
  border: 1px solid var(--line-strong);
  border-bottom-width: 2px;
  border-radius: 3px;
  color: var(--fg-1);
  line-height: 1.2;
}

/* Toast */
.le-toast {
  position: fixed; bottom: 84px; left: 50%;
  transform: translateX(-50%);
  padding: 8px 16px;
  background: var(--bg-3);
  border: 1px solid var(--cyan-dim);
  border-radius: 4px;
  color: var(--fg-0);
  font-size: 12px;
  box-shadow: var(--shadow);
  z-index: 1000;
  animation: le-toast-in 0.2s ease;
  font-family: 'Inter', -apple-system, sans-serif;
  -webkit-font-smoothing: antialiased;
}
@keyframes le-toast-in {
  from { opacity: 0; transform: translate(-50%, 6px); }
  to   { opacity: 1; transform: translate(-50%, 0); }
}

/* ─── Word Timeline ─── */
.le-root .word-timeline {
  margin-top: 14px;
  padding-top: 20px;
  user-select: none;
}
.le-root .wt-track {
  position: relative;
  height: 36px;
  background: var(--bg-0);
  border: 1px solid var(--line);
  border-radius: 4px;
  overflow: visible;
}
.le-root .wt-grid {
  position: absolute;
  inset: 0;
  border-radius: 3px;
  background: repeating-linear-gradient(
    90deg,
    transparent 0, transparent 19px,
    var(--line) 19px, var(--line) 20px
  );
  pointer-events: none;
}
.le-root .wt-bar {
  position: absolute;
  top: 0; bottom: 0;
  display: flex;
  align-items: stretch;
  min-width: 4px;
}
.le-root .wt-num {
  position: absolute;
  top: -17px;
  left: 50%;
  transform: translateX(-50%);
  font-family: var(--mono);
  font-size: 9px;
  font-weight: 600;
  color: var(--wc, var(--fg-2));
  white-space: nowrap;
  pointer-events: none;
  line-height: 1;
}
.le-root .wt-handle {
  width: 8px;
  flex-shrink: 0;
  background: var(--wc, var(--cyan));
  opacity: 0.6;
  cursor: ew-resize;
  transition: opacity 0.1s;
}
.le-root .wt-hl { border-radius: 3px 0 0 3px; }
.le-root .wt-hr { border-radius: 0 3px 3px 0; }
.le-root .wt-handle:hover,
.le-root .wt-handle.active { opacity: 1; }
.le-root .wt-label {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 10px;
  font-family: var(--mono);
  color: var(--wc, var(--fg-1));
  background: var(--wcb, rgba(77,208,225,0.13));
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
  padding: 0 3px;
  min-width: 0;
}
.le-root .wt-bar.dragging .wt-label { filter: brightness(1.3); }
.le-root .wt-playhead {
  position: absolute;
  top: -4px; bottom: -4px;
  width: 1px;
  background: var(--amber);
  box-shadow: 0 0 4px var(--amber);
  pointer-events: none;
  transform: translateX(-50%);
}
.le-root .wt-axis {
  display: flex;
  justify-content: space-between;
  margin-top: 5px;
  font-size: 9px;
  font-family: var(--mono);
  color: var(--fg-3);
}