:root {
    --bg: #0a0a0a;
    --surface: #111111;
    --border: #222;
    --accent: #00ff88;
    --accent-dim: #00ff8833;
    --accent-mid: #00ff8866;
    --text: #e0e0e0;
    --text-dim: #555;
    --danger: #ff4444;
    --mono: 'Share Tech Mono', monospace;
    --sans: 'Barlow', sans-serif;
  }

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

  html, body {
    height: 100%;
  }

  body {
    background: var(--bg);
    color: var(--text);
    font-family: var(--sans);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
  }

  /* HEADER */
  header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 16px;
    border-bottom: 1px solid var(--border);
    background: var(--surface);
    flex-shrink: 0;
  }

  .logo {
    font-family: var(--mono);
    font-size: 12px;
    color: var(--accent);
    letter-spacing: 4px;
    text-transform: uppercase;
  }

  .clock {
    font-family: var(--mono);
    font-size: 11px;
    color: var(--text-dim);
    letter-spacing: 1px;
  }

  @keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.4; }
  }

  /* MAIN LAYOUT */
  main {
    flex: 1;
    display: flex;
    flex-direction: column;
    padding: 12px;
    gap: 12px;
    min-height: 0;
  }

  /* CAMERA SELECTOR */
  .cam-selector {
    display: flex;
    gap: 8px;
    align-items: center;
    flex-wrap: wrap;
  }

  .cam-selector label {
    font-family: var(--mono);
    font-size: 10px;
    color: var(--text-dim);
    letter-spacing: 2px;
    margin-right: 4px;
  }

  #camButtons {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
  }

  .cam-btn {
    font-family: var(--mono);
    font-size: 12px;
    letter-spacing: 1px;
    padding: 8px 16px;
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text-dim);
    cursor: pointer;
    transition: all 0.15s;
    text-transform: uppercase;
    touch-action: manipulation;
  }
  .cam-btn:hover { border-color: var(--accent-mid); color: var(--text); }
  .cam-btn.active {
    background: var(--accent-dim);
    border-color: var(--accent);
    color: var(--accent);
  }

  /* VIDEO AREA */
  .video-wrapper {
    background: #000;
    border: 1px solid var(--border);
    position: relative;
    overflow: hidden;
    width: 100%;
    aspect-ratio: 16 / 9;
    flex-shrink: 0;
  }

  /* On landscape / tall screens, let video grow */
  @media (min-height: 600px) and (orientation: landscape) {
    .video-wrapper {
      flex: 1;
      aspect-ratio: unset;
      min-height: 0;
    }
  }

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

  .video-overlay {
    position: absolute;
    top: 8px; left: 8px;
    display: flex;
    gap: 6px;
    align-items: center;
  }

  .live-badge {
    font-family: var(--mono);
    font-size: 9px;
    letter-spacing: 2px;
    padding: 3px 7px;
    background: var(--danger);
    color: #fff;
    font-weight: 600;
  }

  .rewind-badge {
    font-family: var(--mono);
    font-size: 9px;
    letter-spacing: 2px;
    padding: 3px 7px;
    background: #ff8800;
    color: #fff;
    display: none;
  }

  .cam-label {
    font-family: var(--mono);
    font-size: 9px;
    letter-spacing: 2px;
    padding: 3px 7px;
    background: rgba(0,0,0,0.6);
    color: var(--accent);
    border: 1px solid var(--accent-mid);
  }

  .video-time-overlay {
    position: absolute;
    bottom: 8px; right: 8px;
    font-family: var(--mono);
    font-size: 10px;
    color: rgba(255,255,255,0.5);
    letter-spacing: 1px;
  }

  .spinner {
    position: absolute;
    top: 50%; left: 50%;
    transform: translate(-50%, -50%);
    width: 36px; height: 36px;
    border: 2px solid var(--border);
    border-top-color: var(--accent);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    display: none;
  }
  @keyframes spin { to { transform: translate(-50%, -50%) rotate(360deg); } }

  /* TIMELINE */
  .timeline-section {
    background: var(--surface);
    border: 1px solid var(--border);
    padding: 12px;
    flex-shrink: 0;
  }

  .timeline-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
    gap: 8px;
  }

  .timeline-label {
    font-family: var(--mono);
    font-size: 9px;
    color: var(--text-dim);
    letter-spacing: 2px;
  }

  .time-display {
    font-family: var(--mono);
    font-size: 11px;
    color: var(--accent);
    letter-spacing: 1px;
    white-space: nowrap;
  }

  .slider-container {
    position: relative;
    height: 44px;
    display: flex;
    align-items: center;
    margin-bottom: 6px;
  }

  .slider-track {
    position: absolute;
    left: 0; right: 0;
    height: 4px;
    background: var(--border);
  }

  .slider-fill {
    position: absolute;
    left: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--accent-mid), var(--accent));
    pointer-events: none;
    transition: width 0.1s;
  }

  .slider-live-marker {
    position: absolute;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 3px;
    height: 16px;
    background: var(--danger);
  }

  input[type=range] {
    position: relative;
    width: 100%;
    height: 44px;
    -webkit-appearance: none;
    background: transparent;
    cursor: pointer;
    z-index: 2;
    touch-action: manipulation;
  }

  input[type=range]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 22px; height: 22px;
    background: var(--accent);
    border-radius: 0;
    box-shadow: 0 0 12px var(--accent);
    cursor: grab;
    margin-top: -9px;
  }
  input[type=range]::-webkit-slider-thumb:active { cursor: grabbing; }
  input[type=range]::-webkit-slider-runnable-track {
    height: 4px;
    background: transparent;
  }
  input[type=range]::-moz-range-thumb {
    width: 22px; height: 22px;
    background: var(--accent);
    border-radius: 0;
    border: none;
    box-shadow: 0 0 12px var(--accent);
  }

  .ticks {
    display: flex;
    justify-content: space-between;
    padding: 0 2px;
  }
  .tick {
    font-family: var(--mono);
    font-size: 9px;
    color: var(--text-dim);
  }
  @media (max-width: 380px) {
    .tick:not(:first-child):not(:last-child) { display: none; }
  }

  /* CONTROLS */
  .controls {
    display: flex;
    gap: 6px;
    align-items: center;
    margin-top: 10px;
    flex-wrap: wrap;
  }

  .ctrl-btn {
    font-family: var(--mono);
    font-size: 11px;
    letter-spacing: 1px;
    padding: 10px 14px;
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text-dim);
    cursor: pointer;
    transition: all 0.15s;
    text-transform: uppercase;
    touch-action: manipulation;
    flex: 1;
    min-width: 48px;
    text-align: center;
  }
  .ctrl-btn:hover { border-color: var(--accent-mid); color: var(--text); }
  .ctrl-btn.primary {
    border-color: var(--accent);
    color: var(--accent);
    background: var(--accent-dim);
  }
  .ctrl-btn.primary:hover { background: #00ff8822; }

  /* Config panel */
  .config-bar {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    align-items: center;
    padding: 10px 12px;
    background: #0d0d0d;
    border-top: 1px solid var(--border);
    flex-shrink: 0;
  }

  .config-bar label {
    font-family: var(--mono);
    font-size: 9px;
    color: var(--text-dim);
    letter-spacing: 2px;
  }

  .config-bar input {
    font-family: var(--mono);
    font-size: 11px;
    background: var(--surface);
    border: 1px solid var(--border);
    color: var(--text);
    padding: 6px 8px;
    width: 100%;
    max-width: 260px;
    outline: none;
    min-width: 0;
  }
  .config-bar input:focus { border-color: var(--accent-mid); }

  .config-bar select {
    font-family: var(--mono);
    font-size: 11px;
    background: var(--surface);
    border: 1px solid var(--border);
    color: var(--text);
    padding: 6px 8px;
    outline: none;
    cursor: pointer;
  }

  .apply-btn {
    font-family: var(--mono);
    font-size: 10px;
    letter-spacing: 1px;
    padding: 7px 14px;
    background: var(--accent-dim);
    border: 1px solid var(--accent);
    color: var(--accent);
    cursor: pointer;
    text-transform: uppercase;
    touch-action: manipulation;
  }
  .apply-btn:hover { background: #00ff8822; }

  /* Mobile: hide config bar behind a toggle button */
  .config-toggle {
    display: none;
    font-family: var(--mono);
    font-size: 10px;
    letter-spacing: 1px;
    padding: 7px 12px;
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text-dim);
    cursor: pointer;
    text-transform: uppercase;
    touch-action: manipulation;
    margin: 0 12px 10px;
    align-self: flex-start;
  }

  @media (max-width: 600px) {
    .config-toggle { display: block; }
    .config-bar { display: none; }
    .config-bar.open { display: flex; }
    .clock { display: none; }
    .time-display { font-size: 10px; }
  }

  #errorMsg {
    font-family: var(--mono);
    font-size: 10px;
    color: var(--danger);
    display: none;
    width: 100%;
    margin-top: 4px;
  }