/* Animation Engine — Backgrounds base (the injected layer + canvas). */
.upw-bg-layer {
	position: absolute; inset: 0; z-index: 0;
	pointer-events: none; overflow: hidden;
}
.upw-bg-canvas { display: block; width: 100%; height: 100%; }
/* Multiple stacked effects: each effect gets its own absolute layer div (built by the core JS from
   data-bg-layers). They sit behind the real content and never capture the pointer. */
.sc-bg-layer { pointer-events: none; }
.sc-bg--stack { position: relative; }