/* Sparkle canvas overlay */
#sparkle-canvas {
  position: fixed;
  inset: 0;
  width: 100vw;
  height: 100vh;
  pointer-events: none; /* click-through */
  z-index: 9999; /* above site content, below modals if needed */
  display: block;
}

/* Optional: respect reduced motion */
@media (prefers-reduced-motion: reduce) {
  #sparkle-canvas { display: none; }
}