.shatter-layer {
  position: fixed;
  inset: 0;
  z-index: 10000;
  overflow: hidden;
  pointer-events: all;
  background: #080808;
  isolation: isolate;
}

.shatter-layer--leaving {
  animation: shatter-background-in 420ms ease-out both;
}

.shatter-layer--arriving {
  animation: shatter-background-out 1050ms ease-in both;
}

.crack-canvas {
  position: absolute;
  inset: 0;
  z-index: 3;
  pointer-events: none;
}

.shatter-layer--leaving .crack-canvas {
  animation: cracks-shatter-cycle 1450ms linear both;
}

.shatter-layer--arriving .crack-canvas {
  animation: cracks-disappear 650ms 180ms ease-in both;
}

.glass-shard {
  position: absolute;
  inset: 0;
  overflow: hidden;
  will-change: transform, opacity;
  transform-origin: var(--origin-x) var(--origin-y);
  filter: drop-shadow(0 0 1px rgba(255, 255, 255, .85))
          drop-shadow(0 2px 3px rgba(0, 0, 0, .7));
}

.glass-shard::after {
  content: '';
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(115deg, rgba(255,255,255,.09), transparent 38%);
  mix-blend-mode: screen;
}

.glass-shard-surface {
  position: absolute;
  left: 0;
  top: var(--scroll-offset);
  width: 100vw;
  min-height: var(--document-height);
  overflow: hidden;
  background: white;
  pointer-events: none;
}

.glass-shard-surface *,
.glass-shard-surface *::before,
.glass-shard-surface *::after {
  animation-play-state: paused !important;
}

.shatter-layer--leaving .glass-shard {
  animation: shard-fall-out 760ms var(--delay) cubic-bezier(.5, .05, .92, .42) both;
}

.shatter-layer--fallen .glass-shard,
.shatter-layer--fallen .crack-canvas {
  animation: none;
  opacity: 0;
}

.shatter-layer--arriving .glass-shard {
  animation: shard-build-in 880ms var(--delay) cubic-bezier(.12, .72, .2, 1) both;
}

.is-shattering body > :not(.shatter-layer) {
  animation: original-page-away 1ms 390ms linear both;
}

.is-reassembling body > :not(.shatter-layer) {
  visibility: hidden;
}

@keyframes shatter-background-in {
  from { background: transparent; }
  to { background: #080808; }
}

@keyframes shatter-background-out {
  0%, 78% { background: #080808; }
  100% { background: transparent; }
}

@keyframes original-page-away {
  to { visibility: hidden; }
}

@keyframes shard-fall-out {
  0% { transform: none; opacity: 1; }
  18% { transform: translate3d(calc(var(--fall-x) * .08), -5px, 0) rotate(calc(var(--spin) * .04)); }
  100% { transform: translate3d(var(--fall-x), var(--fall-y), 0) rotate(var(--spin)); opacity: 0; }
}

@keyframes shard-build-in {
  0% { transform: translate3d(var(--fall-x), var(--fall-y), 0) rotate(var(--spin)); opacity: .08; }
  82% { opacity: 1; }
  100% { transform: none; opacity: 1; }
}

@keyframes cracks-shatter-cycle {
  0% { opacity: 0; }
  30% { opacity: 1; }
  100% { opacity: 0; }
}

@keyframes cracks-disappear {
  from { opacity: .9; }
  to { opacity: 0; }
}

@media (prefers-reduced-motion: reduce) {
  .shatter-layer,
  .glass-shard,
  .crack-canvas,
  .is-shattering body > :not(.shatter-layer) {
    animation: none !important;
  }
}