:root {
    --bg: #081018;
    --panel: #0d1a26;
    --trace: #5ee6b5;
    --trace-dim: #2b6e57;
    --grid: #12293a;
    --text: #cfe8dd;
    --text-dim: #6f8f8a;
    --accent: #ff8c5a;
    --bleu: #00B0F0;
    --bleufonce: #0070C0;
    --vert: #00B050;
    --vertclair: #92d050;
    --violet: #7030A0;
    --rouge: #FF0000;
    --bordeaux: #C00000;
    --vieuxrose: #D96180;
    --brun: #9C6A25;
    --noir: #000000;
  }
  * { box-sizing: border-box; }
  
  body {
    margin: 0;
    background: var(--bg);
    /* background-image:
      linear-gradient(var(--grid) 1px, transparent 1px),
      linear-gradient(90deg, var(--grid) 1px, transparent 1px);
    background-size: 28px 28px; */
    color: var(--text);
    font-family: 'Courier New', ui-monospace, monospace;
    min-height: 100vh;
    padding: 28px 18px 60px;
  }

  .wrap { max-width: 980px; margin: 0 auto; }
  
  header { margin-bottom: 22px; border-bottom: 1px solid var(--grid); padding-bottom: 16px; }
  .eyebrow { color: var(--accent); font-size: 12px; letter-spacing: 0.18em; text-transform: uppercase; }
  
  h1 { font-family: Georgia, 'Times New Roman', serif; font-weight: 400; font-size: 28px; margin: 6px 0 4px; }
  .sub { color: var(--text-dim); font-size: 13px; }
  .status { display: inline-block; margin-top: 10px; font-size: 12px; color: var(--text-dim); }
  .dot { display: inline-block; width: 7px; height: 7px; border-radius: 50%; background: var(--text-dim); margin-right: 6px; }
  .dot.ready { background: var(--trace); box-shadow: 0 0 6px var(--trace); }
  .panel { background: var(--panel); border: 1px solid var(--grid); border-radius: 3px; padding: 20px; margin-bottom: 18px; }
  .controls { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 18px 24px; align-items: end; }
  .ctrl label { display: flex; justify-content: space-between; font-size: 12px; color: var(--text-dim); margin-bottom: 6px; }
  .ctrl label span.val { color: var(--trace); }
  
  input[type=range] { width: 100%; accent-color: var(--trace); }
  .buttons { display: flex; gap: 10px; }
  
  button {
    background: var(--bg); color: var(--text); border: 1px solid var(--trace-dim);
    padding: 9px 14px; font-family: inherit; font-size: 12px; letter-spacing: 0.03em;
    cursor: pointer; border-radius: 2px;
  }
  
  button:hover { border-color: var(--trace); color: var(--trace); }
  
  button:disabled { opacity: 0.35; cursor: default; }
  .results { display: flex; gap: 18px; flex-wrap: wrap; justify-content: center; }
  
  canvas { background: #0d1a26; border-radius: 2px; }
  .canvas-label { text-align: center; font-size: 11px; color: var(--text-dim); margin-top: 6px; letter-spacing: 0.05em; }
  
  footer { color: var(--text-dim); font-size: 11px; margin-top: 24px; }