.gate {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: block;
  width: 100%;
  height: 100%;
  margin: 0;
  padding: 0;
  border: 0;
  background: var(--ink);
  color: var(--ash);
  font: inherit;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
}
.gate:focus-visible {
  outline-offset: -10px;
}
.gate canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}
.gate-hint {
  position: absolute;
  left: 0;
  right: 0;
  bottom: max(1.5rem, env(safe-area-inset-bottom));
  text-align: center;
  font-size: 1.05rem;
  opacity: 0;
  animation: hint-in 700ms var(--ease) 1.4s forwards;
}
@keyframes hint-in {
  to { opacity: 1; }
}
.gate.is-leaving {
  visibility: hidden;
}
.no-js .gate {
  display: none;
}

/* The slash that splits the gate in two when you enter */
.cut {
  position: fixed;
  inset: 0;
  z-index: 110;
  overflow: hidden;
  pointer-events: none;
}
.cut-half {
  position: absolute;
  left: -35%;
  top: -35%;
  width: 170%;
  height: 170%;
  background: var(--ink);
  transform: rotate(var(--angle));
  will-change: transform;
}
.cut-half.a { clip-path: inset(0 0 50% 0); }
.cut-half.b { clip-path: inset(50% 0 0 0); }
.cut-inner {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%) rotate(10deg);
}
.cut-inner canvas {
  display: block;
}
.cut-line {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 180vmax;
  height: 2px;
  margin: -1px 0 0 -90vmax;
  background: var(--blood);
  box-shadow: 0 0 14px var(--blood);
  transform: rotate(var(--angle));
}

@media (prefers-reduced-motion: reduce) {
  .gate-hint {
    animation-duration: 1ms;
    animation-delay: 0s;
  }
}