*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --bg: #0a0a0a;
  --surface: rgba(20, 20, 20, 0.85);
  --text: #e8e8e8;
  --text-muted: #999;
  --accent: #3b82f6;
  --accent-hover: #2563eb;
  --danger: #ef4444;
  --danger-hover: #dc2626;
  --radius: 8px;
}

html, body {
  height: 100%;
  width: 100%;
  overflow: hidden;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

.stage {
  display: grid;
  grid-template-rows: 1fr auto;
  height: 100vh;
  width: 100vw;
}

.video-panel {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: flex-start;
  overflow: hidden;
  background: #000;
}

.video-panel video {
  width: auto;
  height: 100%;
  max-width: none;
  object-fit: fill;
}

.controls {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: 12px;
  padding: 12px 0 12px 12px;
  background: #000;
  flex-wrap: wrap;
}

.controls-status {
  font-size: 13px;
  color: var(--text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 300px;
}

.btn {
  appearance: none;
  border: 1px solid rgba(255, 255, 255, 0.15);
  background: rgba(255, 255, 255, 0.08);
  color: var(--text);
  padding: 8px 14px;
  border-radius: var(--radius);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s;
  white-space: nowrap;
}

.btn:hover:not(:disabled) {
  background: rgba(255, 255, 255, 0.14);
  border-color: rgba(255, 255, 255, 0.25);
}

.btn:disabled {
  opacity: 0.35;
  cursor: default;
}

.btn.primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

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

.btn.danger {
  background: var(--danger);
  border-color: var(--danger);
  color: #fff;
}

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

.btn.vad-active {
  border-color: #22c55e;
  box-shadow: 0 0 6px rgba(34, 197, 94, 0.4);
}

.controls.hidden {
  display: none;
}

@media (max-width: 600px) {
  .controls {
    padding: 8px 0 8px 8px;
    gap: 8px;
  }
  .btn {
    padding: 6px 10px;
    font-size: 13px;
  }
}