.fog-canvas {
  position: absolute;
  inset: 0;
  z-index: 3;
  pointer-events: none;
  width: 100%;
  height: 100%;
  opacity: 0;
  transition: opacity 1.2s ease;
}

.fog-canvas.is-live {
  opacity: 1;
}

.stage.is-reduced .fog-canvas,
.stage.is-reduced .pool {
  transition: none;
}

.pool.is-hidden {
  opacity: 0;
}