:root {
    --bg: #0c0a08;
    --bg-elev: #161210;
    --ink: #efe6d8;
    --ink-dim: #a89880;
    --ink-faint: #564a3c;
    --rule: #221c16;
    --accent: #c89060;
    --accent-warm: #e6b884;
    --serif: 'Fraunces', Georgia, serif;
    --mono: 'JetBrains Mono', 'SF Mono', monospace;
  }

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

  html, body {
    background: var(--bg);
    color: var(--ink);
    font-family: var(--serif);
    overflow: hidden;
    height: 100vh; width: 100vw;
  }

  body {
    background-image:
      radial-gradient(ellipse 80% 50% at 50% 50%, rgba(200,144,96,0.05), transparent 60%),
      radial-gradient(ellipse 60% 80% at 30% 80%, rgba(230,184,132,0.04), transparent 70%);
  }

  #canvas-wrap { position: fixed; inset: 0; z-index: 1; }
  canvas { display: block; }

  body::after {
    content: '';
    position: fixed; inset: 0;
    pointer-events: none; z-index: 2;
    opacity: 0.06; mix-blend-mode: overlay;
    background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='180' height='180'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2'/><feColorMatrix values='0 0 0 0 1   0 0 0 0 1   0 0 0 0 1   0 0 0 0.4 0'/></filter><rect width='100%' height='100%' filter='url(%23n)'/></svg>");
  }

  body::before {
    content: '';
    position: fixed; inset: 0;
    pointer-events: none; z-index: 3;
    background: radial-gradient(ellipse at center, transparent 30%, rgba(0,0,0,0.5) 100%);
  }

  header {
    position: fixed; top: 0; left: 0; right: 0; z-index: 10;
    padding: 28px 40px 0 40px;
    display: flex; justify-content: space-between; align-items: flex-start;
    pointer-events: none;
  }

  .masthead { pointer-events: auto; }

  .kicker {
    font-family: var(--mono);
    font-size: 10px; letter-spacing: 0.22em; text-transform: uppercase;
    color: var(--ink-dim); margin-bottom: 6px;
  }

  .kicker .dot {
    display: inline-block; width: 6px; height: 6px;
    background: var(--accent); border-radius: 50%;
    margin-right: 8px;
    box-shadow: 0 0 8px rgba(200,144,96,0.6);
  }

  h1 {
    font-family: var(--serif); font-weight: 300;
    font-size: clamp(36px, 6vw, 64px);
    letter-spacing: -0.02em; line-height: 0.95;
    color: var(--ink);
  }

  h1 em { font-style: italic; font-weight: 400; color: var(--accent-warm); }

  .byline {
    margin-top: 12px; font-family: var(--mono);
    font-size: 10px; letter-spacing: 0.18em;
    color: var(--ink-faint); text-transform: uppercase;
  }

  .meta {
    pointer-events: auto; text-align: right;
    font-family: var(--mono); font-size: 10px;
    letter-spacing: 0.15em; color: var(--ink-dim); text-transform: uppercase;
  }

  .meta .label { color: var(--ink-faint); }
  .meta .val { color: var(--ink); margin-top: 2px; }

  .panel {
    position: fixed; top: 50%; right: 32px; transform: translateY(-50%);
    z-index: 10; width: 280px;
    background: rgba(22,18,16,0.85); backdrop-filter: blur(12px);
    border: 1px solid var(--rule); padding: 24px 22px;
    pointer-events: auto; max-height: 80vh; overflow-y: auto;
  }

  .panel::-webkit-scrollbar { width: 4px; }
  .panel::-webkit-scrollbar-thumb { background: var(--ink-faint); }

  .panel-title {
    font-family: var(--mono); font-size: 10px;
    letter-spacing: 0.18em; text-transform: uppercase;
    color: var(--ink-dim); margin-bottom: 18px;
    display: flex; justify-content: space-between; align-items: center;
  }

  .panel-title .n { color: var(--accent); }
  .control { margin-bottom: 16px; }

  .control-header {
    display: flex; justify-content: space-between; align-items: baseline;
    margin-bottom: 6px;
  }

  .control-label {
    font-family: var(--serif); font-size: 13px;
    color: var(--ink); font-style: italic;
  }

  .control-label .sub {
    font-family: var(--mono); font-size: 9px;
    color: var(--ink-faint); margin-left: 4px;
    letter-spacing: 0.1em; font-style: normal;
  }

  .control-value {
    font-family: var(--mono); font-size: 11px;
    color: var(--accent); letter-spacing: 0.05em;
  }

  input[type="range"] {
    width: 100%; height: 2px;
    background: var(--rule); border-radius: 1px;
    outline: none; -webkit-appearance: none; cursor: pointer;
  }

  input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 12px; height: 12px; background: var(--accent);
    border-radius: 50%; cursor: pointer; transition: all 150ms ease;
    box-shadow: 0 0 8px rgba(200,144,96,0.4);
  }

  input[type="range"]::-webkit-slider-thumb:hover {
    width: 16px; height: 16px; background: var(--accent-warm);
    box-shadow: 0 0 12px rgba(230,184,132,0.6);
  }

  input[type="range"]::-moz-range-thumb {
    width: 12px; height: 12px; background: var(--accent);
    border: none; border-radius: 50%; cursor: pointer;
  }

  .divider { height: 1px; background: var(--rule); margin: 18px 0; }

  .presets { display: grid; grid-template-columns: 1fr 1fr; gap: 6px; }

  .preset-btn {
    padding: 8px 10px; background: transparent;
    border: 1px solid var(--rule); color: var(--ink-dim);
    font-family: var(--mono); font-size: 10px;
    letter-spacing: 0.08em; text-transform: uppercase;
    cursor: pointer; transition: all 150ms ease;
  }

  .preset-btn:hover { border-color: var(--accent); color: var(--accent); }
  .preset-btn.active { background: var(--accent); border-color: var(--accent); color: var(--bg); }

  .essay {
    position: fixed; left: 40px; bottom: 120px; z-index: 10;
    max-width: 360px; pointer-events: auto;
  }

  .essay .label {
    font-family: var(--mono); font-size: 10px;
    letter-spacing: 0.18em; color: var(--ink-faint);
    text-transform: uppercase; margin-bottom: 8px;
  }

  .essay p {
    font-family: var(--serif); font-size: 14px;
    line-height: 1.6; color: var(--ink-dim); font-style: italic;
  }

  .essay .accent { color: var(--accent-warm); font-style: normal; }
  .essay em { color: var(--ink); font-weight: 400; }

  .readout {
    position: fixed; left: 40px; bottom: 32px; z-index: 10;
    display: flex; gap: 28px;
    font-family: var(--mono); font-size: 10px;
    letter-spacing: 0.15em; color: var(--ink-faint);
    text-transform: uppercase; pointer-events: none;
  }

  .readout .live { color: var(--accent); }

  .actions {
    position: fixed; right: 32px; bottom: 32px; z-index: 10;
    display: flex; gap: 8px; pointer-events: auto;
  }

  .action-btn {
    padding: 10px 16px; background: var(--bg-elev);
    border: 1px solid var(--rule); color: var(--ink);
    font-family: var(--mono); font-size: 10px;
    letter-spacing: 0.15em; text-transform: uppercase;
    cursor: pointer; transition: all 150ms ease;
  }

  .action-btn:hover { border-color: var(--accent); color: var(--accent); }
  .action-btn.playing { border-color: var(--accent); color: var(--accent); }

  @media (max-width: 768px) {
    .panel {
      right: 16px; width: calc(100% - 32px); max-width: 320px;
      top: auto; bottom: 80px; transform: none;
    }
    .essay { display: none; }
    h1 { font-size: 26px; }
    header { padding: 20px 20px 0 20px; }
    .meta { display: none; }
  }


  #canvas-wrap canvas {
    width: 100%;
    height: 100%;
    display: block;
  }