:root {
  --bg: #0b0d10;
  --panel: #14181d;
  --panel-2: #1b2027;
  --line: #262d36;
  --text: #e6eaef;
  --dim: #8b96a5;
  --accent: #4f9cf9;
  --good: #3ecf8e;
  --warn: #f5a524;
  --bad: #f2555a;
  --radius: 8px;
  font-synthesis-weight: none;
}

* {
  box-sizing: border-box;
}

html,
body {
  height: 100%;
}

body {
  margin: 0;
  display: grid;
  grid-template-rows: auto 1fr auto;
  background: var(--bg);
  color: var(--text);
  font: 14px/1.4 ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  overflow: hidden;
}

/* ---------- top bar ---------- */

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

.brand {
  font-weight: 600;
  letter-spacing: -0.01em;
}

.status {
  margin-left: auto;
  color: var(--dim);
  font-variant-numeric: tabular-nums;
  font-size: 13px;
}

.status[data-tone="bad"] {
  color: var(--bad);
}

/* ---------- stage ---------- */

.stage {
  min-height: 0;
  padding: 12px;
}

.grid {
  display: grid;
  gap: 12px;
  height: 100%;
  min-height: 0;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  grid-template-rows: repeat(2, minmax(0, 1fr));
}

/* Spotlight: focused tile fills the left, the rest stack down the right. */
.stage[data-layout="spotlight"] .grid {
  grid-template-columns: minmax(0, 3fr) minmax(0, 1fr);
  grid-template-rows: repeat(3, minmax(0, 1fr));
}

.stage[data-layout="spotlight"] .tile[data-focus="true"] {
  grid-column: 1;
  grid-row: 1 / span 3;
}

.tile {
  position: relative;
  min-width: 0;
  min-height: 0;
  background: #000;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  cursor: pointer;
}

.tile[data-focus="true"] {
  border-color: var(--accent);
}

.tile video {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
  background: #000;
}

.tile-label {
  position: absolute;
  top: 8px;
  left: 8px;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 4px 8px;
  border-radius: 6px;
  background: rgba(0, 0, 0, 0.6);
  font-size: 12px;
  font-weight: 500;
  pointer-events: none;
}

.dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--dim);
}

.dot[data-state="ok"] {
  background: var(--good);
}
.dot[data-state="drift"] {
  background: var(--warn);
}
.dot[data-state="bad"] {
  background: var(--bad);
}

.tile-audio {
  position: absolute;
  top: 8px;
  right: 8px;
  padding: 4px 8px;
  border-radius: 6px;
  border: 1px solid transparent;
  background: rgba(0, 0, 0, 0.6);
  color: var(--dim);
  font-size: 11px;
  cursor: pointer;
}

.tile-audio[data-active="true"] {
  color: var(--text);
  border-color: var(--accent);
}

.tile-offset {
  position: absolute;
  bottom: 8px;
  left: 8px;
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 3px 5px;
  border-radius: 6px;
  background: rgba(0, 0, 0, 0.6);
  font-size: 11px;
  font-variant-numeric: tabular-nums;
}

.tile-offset button {
  background: var(--panel-2);
  color: var(--text);
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 1px 6px;
  cursor: pointer;
  font: inherit;
}

.tile-offset button:hover {
  border-color: var(--accent);
}

.tile-note {
  position: absolute;
  inset: 0;
  display: grid;
  place-content: center;
  gap: 4px;
  text-align: center;
  color: var(--dim);
  background: #0b0d10;
  font-size: 13px;
  padding: 12px;
}

.tile-note strong {
  color: var(--text);
  font-weight: 500;
}

.tile-note[hidden] {
  display: none;
}

/* ---------- transport ---------- */

.transport {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 10px 16px;
  background: var(--panel);
  border-top: 1px solid var(--line);
}

.scrub {
  flex: 1;
  min-width: 0;
  display: flex;
  align-items: center;
  gap: 12px;
}

.seek {
  flex: 1;
  min-width: 0;
  accent-color: var(--accent);
}

.times {
  display: flex;
  gap: 6px;
  font-variant-numeric: tabular-nums;
  font-size: 13px;
}

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

.controls {
  display: flex;
  align-items: center;
  gap: 8px;
}

.field {
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--dim);
  font-size: 12px;
}

.btn {
  background: var(--panel-2);
  color: var(--text);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 6px 12px;
  cursor: pointer;
  font: inherit;
  font-variant-numeric: tabular-nums;
}

.btn:hover:not(:disabled) {
  border-color: var(--accent);
}

.btn:disabled {
  opacity: 0.4;
  cursor: default;
}

.btn-primary {
  min-width: 72px;
  background: var(--accent);
  border-color: var(--accent);
  color: #06121f;
  font-weight: 600;
}

.picker {
  background: var(--panel-2);
  color: var(--text);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 6px 8px;
  font: inherit;
}

.picker.small {
  padding: 4px 6px;
  font-size: 12px;
}

/* ---------- drift readout ---------- */

.drift {
  position: fixed;
  right: 16px;
  bottom: 64px;
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 8px 10px;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: rgba(11, 13, 16, 0.9);
  color: var(--dim);
  font-size: 11px;
  font-variant-numeric: tabular-nums;
  pointer-events: none;
}

.drift:empty {
  display: none;
}