/* Theme Ripple Mask – used for smooth theme transitions */

#theme-mask {
  position: fixed;
  inset: 0;
  width: 100vw;
  height: 100vh;
  pointer-events: none;
  z-index: 9999;

  opacity: 0;
  background: #000;

  /* Start as a tiny circle from click point */
  -webkit-clip-path: circle(0px at var(--toggle-x, 50vw) var(--toggle-y, 50vh));
  clip-path: circle(0px at var(--toggle-x, 50vw) var(--toggle-y, 50vh));

  will-change: clip-path, opacity;
  contain: strict;

  transition:
    -webkit-clip-path 700ms cubic-bezier(0.4, 0, 0.2, 1),
    clip-path 700ms cubic-bezier(0.4, 0, 0.2, 1),
    opacity 120ms linear;
}

#theme-mask.active {
  opacity: 1;
  -webkit-clip-path: circle(var(--ripple-radius, 150vmax) at var(--toggle-x, 50vw) var(--toggle-y, 50vh));
  clip-path: circle(var(--ripple-radius, 150vmax) at var(--toggle-x, 50vw) var(--toggle-y, 50vh));
}

@media (prefers-reduced-motion: reduce) {
  #theme-mask {
    transition: none;
  }
}