html, body {
        margin: 0;
        width: 100%;
        height: 100%;
        overflow: hidden;
        background: #ddcfaf;
      }

      body {
        position: relative;
      }

      #c {
        position: fixed;
        inset: 0;
        width: 100%;
        height: 100%;
        display: block;
      }

      .title {
        position: fixed;
        top: 16px;
        left: 50%;
        transform: translateX(-50%);
        z-index: 3;
      }

      .scene-controls {
        position: fixed;
        left: 50%;
        bottom: 20px;
        transform: translateX(-50%);
        display: flex;
        align-items: center;
        gap: 10px;
        z-index: 4;
      }

      #scoreToggle,
      #sceneReload {
        border: 1px solid rgba(42, 30, 15, 0.35);
        background: rgba(255, 248, 232, 0.86);
        color: rgba(34, 24, 12, 0.9);
        border-radius: 999px;
        padding: 10px 22px;
        font-size: 14px;
        letter-spacing: 0.03em;
        cursor: pointer;
        backdrop-filter: blur(4px);
        transition: transform 180ms ease, background 180ms ease, box-shadow 180ms ease;
        box-shadow: 0 4px 18px rgba(60, 45, 24, 0.12);
      }

      #scoreToggle:hover,
      #sceneReload:hover {
        transform: translateY(-1px);
        background: rgba(255, 252, 244, 0.94);
      }

      #scoreToggle:active,
      #sceneReload:active {
        transform: translateY(0);
      }

      #sceneReload {
        padding-inline: 18px;
      }

      #scoreToggle {
        z-index: 4;
      }

      #versionTag {
        position: fixed;
        right: 12px;
        bottom: 12px;
        z-index: 4;
        color: rgba(34, 24, 12, 0.7);
        font-size: 11px;
        display: none;
        letter-spacing: 0.05em;
        background: rgba(255, 248, 232, 0.72);
        border: 1px solid rgba(42, 30, 15, 0.2);
        border-radius: 999px;
        padding: 4px 10px;
        backdrop-filter: blur(4px);
      }