:root {
  --bg: #0b0d12;
  --panel: #12151d;
  --panel2: #171b26;
  --border: #232936;
  --text: #e8ecf4;
  --dim: #93a0b4;
  --accent: #4f8cff;
  --accent-soft: rgba(79, 140, 255, 0.18);
  --danger: #ff5c69;
  --ok: #39d98a;
  --warn: #ffb84d;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  height: 100%;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  font-size: 14px;
  overflow: hidden;
}

[hidden], .hidden { display: none !important; }

.mono { font-variant-numeric: tabular-nums; font-feature-settings: "tnum"; }
.dim { color: var(--dim); }
.spacer { flex: 1; }

.screen { display: none; flex-direction: column; height: 100vh; height: 100dvh; }
.screen.active { display: flex; }

.topbar {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 10px 16px;
  border-bottom: 1px solid var(--border);
  background: var(--panel);
  flex-shrink: 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  letter-spacing: 0.2px;
}

.logo-dot {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), #7fb0ff);
}

.logo-dot.rec { background: radial-gradient(circle at 35% 35%, #ff8087, var(--danger)); }

.top-hint { margin-left: auto; color: var(--dim); font-size: 12px; }

.btn {
  appearance: none;
  border: 1px solid var(--border);
  background: var(--panel2);
  color: var(--text);
  padding: 9px 16px;
  border-radius: 10px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition: background 0.15s, border-color 0.15s, transform 0.05s;
}

.btn:hover:not(:disabled) { background: #1d2331; border-color: #2e3749; }
.btn:active:not(:disabled) { transform: translateY(1px); }
.btn:disabled { opacity: 0.45; cursor: not-allowed; }

.btn.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn.primary:hover:not(:disabled) { background: #6a9dff; border-color: #6a9dff; }

.btn.danger { background: transparent; border-color: rgba(255, 92, 105, 0.5); color: var(--danger); }
.btn.danger:hover:not(:disabled) { background: rgba(255, 92, 105, 0.12); }

.btn.ghost { background: transparent; border-color: transparent; color: var(--dim); }
.btn.ghost:hover:not(:disabled) { color: var(--text); background: var(--panel2); }

.btn.wide { width: 100%; margin-top: 10px; }

.btn-row { display: flex; gap: 8px; margin-top: 10px; }
.btn-row .btn { flex: 1; }

.icon-btn {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: var(--panel2);
  color: var(--text);
  display: grid;
  place-items: center;
  cursor: pointer;
  transition: background 0.15s;
}

.icon-btn:hover { background: #1d2331; }

.icon-btn.play {
  width: 44px;
  height: 44px;
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

.icon-btn.play:hover { background: #6a9dff; }

.chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 14px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--panel2);
  cursor: pointer;
  user-select: none;
  color: var(--text);
  font-size: 13px;
  font-weight: 600;
}

.chip input { accent-color: var(--accent); width: 15px; height: 15px; cursor: pointer; }

.pill {
  padding: 6px 12px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 1px;
  border: 1px solid var(--border);
  color: var(--dim);
}

.pill.idle { color: var(--dim); }

.pill.recording {
  color: #fff;
  background: rgba(255, 92, 105, 0.15);
  border-color: var(--danger);
  animation: pulse 1.2s ease-in-out infinite;
}

.pill.paused { color: var(--warn); background: rgba(255, 184, 77, 0.12); border-color: var(--warn); }

@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(255, 92, 105, 0.45); }
  50% { box-shadow: 0 0 0 6px rgba(255, 92, 105, 0); }
}

.timer { font-size: 20px; font-weight: 700; min-width: 72px; text-align: center; }

.recorder-layout {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  overflow: hidden;
}

.rec-column { width: min(1080px, 100%); display: flex; flex-direction: column; }

.rec-stage {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  max-height: calc(100vh - 220px);
  margin: 0 auto;
  background: #000;
  border: 1px solid var(--border);
  border-radius: 16px;
  overflow: hidden;
}

.rec-stage video { width: 100%; height: 100%; object-fit: contain; display: block; }

.placeholder {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  color: var(--dim);
  text-align: center;
  padding: 24px;
}

.placeholder p { margin: 0; font-weight: 600; color: var(--text); }
.placeholder small { line-height: 1.6; }
.placeholder svg { opacity: 0.6; }

.rec-controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  margin-top: 18px;
  flex-wrap: wrap;
}

.editor-layout {
  flex: 1;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 360px;
  overflow: hidden;
}

.stage-col {
  display: flex;
  flex-direction: column;
  padding: 16px;
  gap: 12px;
  min-width: 0;
  overflow: hidden;
}

.stage {
  position: relative;
  flex: 1;
  min-height: 200px;
  background: #000;
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.fit { position: relative; overflow: hidden; touch-action: none; }

.fit video { width: 100%; height: 100%; display: block; will-change: transform; }

.fit canvas {
  position: absolute;
  inset: 0;
  touch-action: none;
}

.fit.crop-mode canvas { cursor: crosshair; }
.fit.text-mode canvas { cursor: grab; }

.transport {
  display: flex;
  align-items: center;
  gap: 12px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 8px 14px;
}

.time-label { font-size: 13px; color: var(--text); }

.inline-label { color: var(--dim); font-size: 12px; font-weight: 600; }

select, input[type="number"], input[type="text"] {
  background: #0f131c;
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 8px;
  padding: 8px 10px;
  font-size: 13px;
  outline: none;
  font-family: inherit;
}

select:focus, input:focus { border-color: var(--accent); }

input[type="color"] {
  width: 100%;
  height: 36px;
  padding: 3px;
  background: #0f131c;
  border: 1px solid var(--border);
  border-radius: 8px;
  cursor: pointer;
}

.timeline-block { flex-shrink: 0; }

.tl-times {
  display: flex;
  justify-content: space-between;
  padding: 0 2px 6px;
  font-size: 12px;
  color: var(--text);
}

.tl-track {
  position: relative;
  height: 46px;
  border-radius: 10px;
  background: linear-gradient(180deg, #1b2130, #141927);
  border: 1px solid var(--border);
  cursor: pointer;
  touch-action: none;
  overflow: hidden;
}

.tl-region {
  position: absolute;
  top: 0;
  bottom: 0;
  background: var(--accent-soft);
  border-left: 1px solid rgba(79, 140, 255, 0.55);
  border-right: 1px solid rgba(79, 140, 255, 0.55);
  pointer-events: none;
}

.tl-handle {
  position: absolute;
  top: 0;
  bottom: 0;
  width: 12px;
  margin-left: -6px;
  background: var(--accent);
  border-radius: 4px;
  cursor: ew-resize;
  z-index: 3;
  display: grid;
  place-items: center;
}

.tl-handle::after {
  content: "";
  width: 2px;
  height: 16px;
  border-radius: 2px;
  background: rgba(255, 255, 255, 0.75);
}

.tl-playhead {
  position: absolute;
  top: 0;
  bottom: 0;
  width: 2px;
  margin-left: -1px;
  background: #fff;
  z-index: 2;
  pointer-events: none;
}

.tl-playhead::before {
  content: "";
  position: absolute;
  top: 3px;
  left: 50%;
  transform: translateX(-50%);
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #fff;
}

.sidebar {
  border-left: 1px solid var(--border);
  background: var(--panel);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.tabs {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 4px;
  padding: 10px;
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}

.tab-btn {
  padding: 8px 4px;
  border-radius: 8px;
  border: none;
  background: transparent;
  color: var(--dim);
  font-weight: 600;
  font-size: 13px;
  cursor: pointer;
}

.tab-btn:hover { color: var(--text); }

.tab-btn.active { background: var(--panel2); color: var(--text); }

.panel {
  display: none;
  padding: 16px;
  overflow-y: auto;
  flex: 1;
}

.panel.active { display: block; }

.panel h3 { margin: 0 0 6px; font-size: 15px; }

.hint { color: var(--dim); font-size: 12px; line-height: 1.55; margin: 0 0 14px; }

.field { margin-bottom: 12px; }

.field label {
  display: block;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  color: var(--dim);
  margin-bottom: 5px;
}

.field input, .field select { width: 100%; }

.row2 { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }

.kv {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 12px;
  background: var(--panel2);
  border: 1px solid var(--border);
  border-radius: 10px;
  margin-bottom: 10px;
  font-size: 13px;
}

.kv span { color: var(--dim); }

.txt-list { margin-top: 14px; display: flex; flex-direction: column; gap: 6px; }

.txt-row {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 10px;
  border-radius: 10px;
  background: var(--panel2);
  border: 1px solid var(--border);
  cursor: pointer;
}

.txt-row.selected { border-color: var(--accent); }

.txt-row .name {
  flex: 1;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  font-weight: 600;
  font-size: 13px;
}

.txt-row .range { color: var(--dim); font-size: 11px; }

.txt-del {
  border: none;
  background: transparent;
  color: var(--dim);
  font-size: 15px;
  cursor: pointer;
  padding: 2px 6px;
  border-radius: 6px;
}

.txt-del:hover { color: var(--danger); background: rgba(255, 92, 105, 0.12); }

.txt-empty { color: var(--dim); font-size: 12px; text-align: center; padding: 10px; }

.progress { display: flex; align-items: center; gap: 10px; margin-top: 12px; }

.progress .bar {
  flex: 1;
  height: 8px;
  border-radius: 99px;
  background: #20263a;
  overflow: hidden;
}

.progress .fill {
  height: 100%;
  width: 0%;
  border-radius: 99px;
  background: linear-gradient(90deg, var(--accent), #7fb0ff);
  transition: width 0.15s linear;
}

.progress .pct { font-size: 12px; min-width: 38px; text-align: right; }

.result {
  margin-top: 14px;
  padding: 12px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--panel2);
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 13px;
  word-break: break-all;
}

#toast {
  position: fixed;
  left: 50%;
  bottom: 28px;
  transform: translateX(-50%) translateY(20px);
  background: #1d2331;
  border: 1px solid var(--border);
  color: var(--text);
  padding: 11px 18px;
  border-radius: 12px;
  font-size: 13px;
  font-weight: 600;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s, transform 0.25s;
  z-index: 99;
  max-width: 90vw;
}

#toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-thumb { background: #262e40; border-radius: 99px; border: 2px solid var(--panel); }
::-webkit-scrollbar-track { background: transparent; }

@media (max-width: 980px) {
  .editor-layout { grid-template-columns: 1fr; grid-template-rows: minmax(0, 1fr) 300px; }
  .sidebar { border-left: none; border-top: 1px solid var(--border); }
}