/* Five small pixel stars, eight at a saved lesson. No layout or hit targets. */
.success-effect {
  position: fixed;
  inset: 0;
  overflow: hidden;
  z-index: var(--z-toast, 70);
  pointer-events: none;
}

.success-effect__star {
  position: absolute;
  left: var(--success-x);
  top: var(--success-y);
  width: 11px;
  height: 11px;
  max-width: none;
  margin: 0;
  border: 0;
  border-radius: 0;
  image-rendering: pixelated;
  pointer-events: none;
  --star-x: 0px;
  --star-y: -30px;
}

.success-effect__star--1 { --star-x: 28px; --star-y: -12px; }
.success-effect__star--2 { --star-x: 20px; --star-y: 24px; }
.success-effect__star--3 { --star-x: -20px; --star-y: 24px; }
.success-effect__star--4 { --star-x: -28px; --star-y: -12px; }

.success-effect--lesson .success-effect__star {
  width: 22px;
  height: 22px;
  --star-y: -58px;
}
.success-effect--lesson .success-effect__star--1 { --star-x: 42px; --star-y: -42px; }
.success-effect--lesson .success-effect__star--2 { --star-x: 58px; --star-y: 0px; }
.success-effect--lesson .success-effect__star--3 { --star-x: 42px; --star-y: 42px; }
.success-effect--lesson .success-effect__star--4 { --star-x: 0px; --star-y: 58px; }
.success-effect--lesson .success-effect__star--5 { --star-x: -42px; --star-y: 42px; }
.success-effect--lesson .success-effect__star--6 { --star-x: -58px; --star-y: 0px; }
.success-effect--lesson .success-effect__star--7 { --star-x: -42px; --star-y: -42px; }

.school-save .school-save__star {
  width: 64px;
  height: 64px;
  image-rendering: pixelated;
}

@media (prefers-reduced-motion: no-preference) {
  .success-effect__star {
    animation: success-pixel-star 600ms cubic-bezier(0.2, 0, 0, 1) both;
  }
}

@keyframes success-pixel-star {
  0% { opacity: 0; transform: translate(-50%, -50%); }
  15% { opacity: 1; }
  65% { opacity: 1; }
  100% { opacity: 0; transform: translate(calc(-50% + var(--star-x)), calc(-50% + var(--star-y))); }
}

@media (prefers-reduced-motion: reduce), print {
  .success-effect { display: none !important; }
  .success-effect__star { animation: none !important; }
}