#ambient-3d-canvas {
  position: fixed;
  inset: 0;
  z-index: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  opacity: .52;
}

body > main {
  position: relative;
  z-index: 1;
}

@media (prefers-reduced-motion: reduce) {
  #ambient-3d-canvas { display: none; }
}