.dodecahedron-intro {
  position: fixed;
  inset: 0;
  z-index: 200;
  overflow: hidden;
  background: var(--bg, #000);
  pointer-events: none;
  contain: strict;
}
.dodecahedron-intro canvas {
  display: block;
  width: 100%;
  height: 100%;
}
@media (prefers-reduced-motion: reduce) {
  .dodecahedron-intro { display: none; }
}