.world-authored-webgl {
  position: absolute;
  inset: 0;
  z-index: 2;
  width: 100%;
  height: 100%;
  display: block;
  opacity: 0;
  pointer-events: none;
  transition: opacity 520ms ease;
}

.world-home.authored-world-ready .world-authored-webgl {
  opacity: 1;
}

.world-home.authored-world-ready .world-webgl {
  opacity: 0 !important;
  visibility: hidden;
}

.world-chrome {
  opacity: 0;
  transition: opacity 360ms ease;
}

.world-home.webgl-ready .world-chrome,
.world-home.authored-world-ready .world-chrome {
  opacity: 1;
}

@media (prefers-reduced-motion: reduce) {
  .world-authored-webgl,
  .world-chrome { transition: none; }
}