:root {
  --bg: #0f1115;
  --panel: #181b22;
  --panel-2: #20242d;
  --text: #e8eaef;
  --muted: #8b92a1;
  --accent: #e8590c;
  --live: #2fb344;
  --border: #2a2f3a;
  color-scheme: dark;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 14px/1.4 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

.bar {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 14px;
  padding: 10px 16px;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
}
.bar h1 { margin: 0; font-size: 17px; }
.spacer { flex: 1; }
.status { color: var(--muted); }
.status.on { color: var(--live); font-weight: 600; }

.btn {
  font: inherit;
  color: var(--text);
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 6px 12px;
  cursor: pointer;
}
.btn:hover { border-color: var(--muted); }
.btn.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn.small { padding: 3px 8px; font-size: 13px; }
.btn.danger:hover { border-color: #e03131; color: #ff8787; }

kbd {
  font: 11px ui-monospace, monospace;
  padding: 1px 4px;
  border: 1px solid var(--border);
  border-radius: 3px;
  color: var(--muted);
}

.toggle, .select { display: flex; align-items: center; gap: 6px; color: var(--muted); }
select, input {
  font: inherit;
  color: var(--text);
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 5px 8px;
}

/* Editor */
.editor {
  padding: 12px 16px 16px;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
}
.editor h2 { margin: 0 0 6px; font-size: 15px; }
.hint { margin: 0 0 10px; color: var(--muted); max-width: 900px; }
.hint code { color: var(--text); }
.edit-list { margin: 0 0 10px; padding: 0; list-style: none; display: grid; gap: 6px; }
.edit-list li { display: flex; gap: 6px; align-items: center; flex-wrap: wrap; }
.edit-list .num { width: 22px; color: var(--muted); text-align: right; }
.edit-list input[name="name"] { width: 220px; }
.edit-list input[name="url"] { flex: 1; min-width: 240px; }
.add-form { display: flex; gap: 6px; flex-wrap: wrap; }
.add-form input[name="name"] { width: 248px; }
.add-form input[name="url"] { flex: 1; min-width: 240px; }
.msg { margin: 8px 0 0; min-height: 1.4em; color: var(--muted); }
.msg.error { color: #ff8787; }

/* Grid */
.grid {
  display: grid;
  gap: 10px;
  padding: 10px;
  grid-template-columns: repeat(auto-fill, minmax(var(--min, 380px), 1fr));
  grid-auto-flow: dense;
}
.empty { text-align: center; color: var(--muted); padding: 60px 16px; }

.tile {
  display: flex;
  flex-direction: column;
  background: var(--panel);
  border: 2px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
}
.tile.audible { border-color: var(--live); }
.tile.big { grid-column: span 2; grid-row: span 2; }

.video { position: relative; aspect-ratio: 16 / 9; background: #000; flex: 1; }
.video > iframe, .video > div { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }
.video .error {
  display: grid;
  place-items: center;
  padding: 16px;
  color: var(--muted);
  text-align: center;
}

.controls {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 8px;
  background: var(--panel-2);
}
.controls .name { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-weight: 600; }
.controls .name .idx { color: var(--muted); font-weight: 400; margin-right: 4px; }
.controls [hidden] { display: none; }
.controls input[type="range"] { width: 70px; padding: 0; accent-color: var(--live); }

.mute {
  min-width: 92px;
  font-weight: 600;
}
.tile.audible .mute { background: var(--live); border-color: var(--live); color: #fff; }
.mute:disabled { opacity: .5; cursor: not-allowed; }

.keys { padding: 4px 16px 16px; color: var(--muted); font-size: 12px; }

@media (max-width: 800px) {
  .tile.big { grid-column: auto; grid-row: auto; }
  .grid { --min: 280px; }
}