/* Overlay canvas: never blocks Notion/Super UI */
#fx-overlay-canvas {
  position: fixed;
  inset: 0;
  width: 100vw;
  height: 100vh;
  z-index: 999999;
  pointer-events: none;
  display: block;

  /* sometimes helps in Super/Notion stacking contexts */
  top: 0;
  left: 0;

  /* optional: makes ink feel more “paper-y” */
  mix-blend-mode: multiply;
}

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