.completion-confetti {
  position:fixed;
  inset:0;
  width:100vw;
  height:100dvh;
  max-width:none;
  max-height:none;
  margin:0;
  padding:0;
  border:0;
  background:transparent;
  overflow:hidden;
  pointer-events:none;
  z-index:2147483647;
}
.completion-confetti::backdrop { background:transparent; pointer-events:none; }
@media(prefers-reduced-motion:reduce) { .completion-confetti { display:none!important; } }