* { margin: 0; padding: 0; box-sizing: border-box; }
  body {
    background: #0a0a0f;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    font-family: 'Georgia', serif;
    color: #e8e0d0;
  }

  #ui {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 100;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 18px 24px 14px;
    background: linear-gradient(to bottom, rgba(10,10,15,0.97) 70%, transparent);
  }

  #title-bar {
    display: flex;
    align-items: baseline;
    gap: 18px;
    margin-bottom: 12px;
  }

  h1 {
    font-size: 1.15rem;
    font-weight: 400;
    letter-spacing: 0.28em;
    text-transform: uppercase;
    color: #c8bfaf;
  }

  #quote {
    font-style: italic;
    font-size: 0.72rem;
    color: #6a6058;
    letter-spacing: 0.05em;
  }

  #controls {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
    justify-content: center;
  }

  button, label {
    cursor: pointer;
  }

  .btn {
    background: none;
    border: 1px solid #3a3530;
    color: #b0a898;
    padding: 6px 16px;
    font-size: 0.72rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    cursor: pointer;
    transition: all 0.2s;
    font-family: inherit;
  }
  .btn:hover { border-color: #8a7f70; color: #e8e0d0; }
  .btn.active { border-color: #c89a60; color: #c89a60; }

  .btn_active {
    background: none;
    border: 1px solid #c89a60;
    color: #c89a60;
    padding: 6px 16px;
    font-size: 0.72rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    cursor: pointer;
    transition: all 0.2s;
    font-family: inherit;
  }

  a {
    text-decoration: none;
  }

  #file-label {
    background: none;
    border: 1px solid #c89a60;
    color: #c89a60;
    padding: 6px 16px;
    font-size: 0.72rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    cursor: pointer;
    transition: all 0.2s;
    font-family: inherit;
  }
  #file-label:hover { background: rgba(200,154,96,0.1); }

  #file-input { display: none; }

  .sep { width: 1px; height: 20px; background: #2a2520; }

  #speed-wrap {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.68rem;
    color: #6a6058;
    letter-spacing: 0.12em;
    text-transform: uppercase;
  }

  input[type=range] {
    -webkit-appearance: none;
    width: 80px;
    height: 2px;
    background: #3a3530;
    outline: none;
  }

  input[type=range]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 10px; height: 10px;
    border-radius: 50%;
    background: #c89a60;
    cursor: pointer;
  }

  #status {
    position: fixed;
    bottom: 18px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 0.65rem;
    color: #4a4540;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    pointer-events: none;
    z-index: 100;
  }

  canvas {
    display: block;
    position: fixed;
    top: 0; left: 0;
    z-index: 0;
  }

    /* ── INFO PAGE ── */
  .container{
    margin-top: 100px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
  }

  h2 {
    font-size: 0.9rem;
    font-weight: 400;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: #c8bfaf;
  }

  /* ── Demo section layout ── */
  .demo-section {
    display: grid;
    grid-template-columns: 1fr 1.6fr;
    gap: 32px;
    align-items: start;
    margin: 32px 0 60px;
    padding: 0 60px;
  }

  /* ── Legend panel ── */
  .legend {
    display: flex;
    flex-direction: column;
    gap: 28px;
  }

  .legend-group h3 {
    font-family: 'Georgia', serif;
    font-size: 0.65rem;
    font-weight: 400;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    color: #5a5248;
    margin-bottom: 12px;
    padding-bottom: 8px;
    border-bottom: 1px solid #1e1c18;
  }

  .legend-rows {
    display: flex;
    flex-direction: column;
    gap: 7px;
  }

  .legend-row {
    display: flex;
    align-items: center;
    gap: 10px;
  }

  .legend-key {
    font-family: 'Georgia', serif;
    font-size: 0.78rem;
    letter-spacing: 0.08em;
    color: #8a8278;
    width: 18px;
    text-align: center;
    flex-shrink: 0;
  }

  .legend-swatch {
    width: 28px;
    height: 4px;
    border-radius: 2px;
    flex-shrink: 0;
  }

  .legend-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: #3a3530;
    flex-shrink: 0;
    position: relative;
  }
  /* pattern preview shapes */
  .legend-shape {
    width: 28px;
    height: 18px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0.55;
  }
  .legend-shape svg { width: 100%; height: 100%; }

  .legend-label {
    font-family: 'Georgia', serif;
    font-size: 0.72rem;
    color: #6a6058;
    font-style: italic;
  }

  .consonants-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 5px 8px;
  }

  .consonant-item {
    display: flex;
    align-items: center;
    gap: 6px;
  }

  /* ── Canvas wrapper ── */
  .canvas-wrap {
    display: flex;
    flex-direction: column;
    gap: 0;
  }

  #demo-canvas-container {
    position: relative;
    border: 1px solid #1e1c18;
    background: #08080c;
    overflow: hidden;
  }

  #demo-canvas-container canvas {
    display: block;
    position: static !important; /* override main page's fixed */
  }

  .input-row {
    display: flex;
    align-items: stretch;
    border: 1px solid #1e1c18;
    border-top: none;
  }

  .input-prompt {
    font-family: 'Georgia', serif;
    font-size: 0.68rem;
    color: #3a3530;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    padding: 10px 14px;
    border-right: 1px solid #1e1c18;
    display: flex;
    align-items: center;
    white-space: nowrap;
    user-select: none;
  }

  #demo-input {
    flex: 1;
    background: transparent;
    border: none;
    outline: none;
    font-family: 'Georgia', serif;
    font-size: 0.9rem;
    color: #c8bfaf;
    padding: 10px 14px;
    caret-color: #c89a60;
    letter-spacing: 0.04em;
  }

  #demo-input::placeholder {
    color: #2e2c28;
    font-style: italic;
  }

  .clear-btn {
    background: none;
    border: none;
    border-left: 1px solid #1e1c18;
    color: #3a3530;
    font-size: 0.65rem;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    padding: 0 14px;
    cursor: pointer;
    font-family: inherit;
    transition: color 0.2s;
  }
  .clear-btn:hover { color: #8a7f70; }

  /* ── Responsive ── */
  @media (max-width: 700px) {
    .demo-section {
      grid-template-columns: 1fr;
      padding: 0 20px;
    }
  }