/* Base layout, typography and canvas sizing. Owns page geometry; does not style panels. */

    * {
      box-sizing: border-box;
      -webkit-tap-highlight-color: transparent;
      user-select: none;
    }
    html, body {
      margin: 0;
      padding: 0;
      width: 100%;
      height: 100%;
      overflow: hidden;
      background-color: #0b0f19;
      font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
      touch-action: none;
    }
    #canvas-container {
      position: fixed;
      inset: 0;
      width: 100%;
      height: 100%;
      z-index: 1;
    }
    canvas {
      display: block;
      width: 100%;
      height: 100%;
    }