html.is-page-transition-pending .page-transition-overlay {
  transform: translateY(0);
}

.page-transition-overlay {
  position: fixed;
  z-index: 9999;
  inset: 0;
  pointer-events: none;
  background-color: var(--color-bg);
  background-image:
    linear-gradient(to right, var(--grid-minor-line) 1px, transparent 1px),
    linear-gradient(to bottom, var(--grid-minor-line) 1px, transparent 1px),
    linear-gradient(to right, var(--grid-major-line) 1px, transparent 1px),
    linear-gradient(to bottom, var(--grid-major-line) 1px, transparent 1px);
  background-size:
    var(--grid-minor) var(--grid-minor),
    var(--grid-minor) var(--grid-minor),
    var(--grid-major) var(--grid-major),
    var(--grid-major) var(--grid-major);
  transform: translateY(-100%);
  will-change: transform;
}

.page-transition-mark {
  position: absolute;
  z-index: 1;
  left: 50%;
  top: 50%;
  display: block;
  width: clamp(4.5rem, 18vw, 8.5rem);
  height: auto;
  opacity: 0;
  transform: translate(-50%, -50%) scale(0.88);
  transform-origin: center center;
}

html.is-page-transition-pending .page-transition-mark,
body.is-page-entering .page-transition-mark {
  opacity: 1;
  transform: translate(-50%, -50%) scale(1);
}

html.is-page-transition-pending .page-transition-overlay::after,
body.is-page-entering .page-transition-overlay::after {
  opacity: 1;
  transform: scaleX(1);
}

.page-transition-overlay::after {
  content: '';
  position: absolute;
  z-index: 0;
  left: var(--page-pad-x);
  right: var(--page-pad-x);
  top: 50%;
  height: 2px;
  background-color: var(--color-red);
  opacity: 0;
  transform: scaleX(0);
  transform-origin: center center;
}

body.is-page-leaving .page-transition-overlay {
  animation: page-transition-cover 0.7s cubic-bezier(0.65, 0, 0.35, 1) forwards;
}

body.is-page-leaving .page-transition-mark {
  animation: page-transition-mark 0.42s cubic-bezier(0.22, 1, 0.36, 1) 0.14s
    forwards;
}

body.is-page-leaving .page-transition-overlay::after {
  animation: page-transition-line 0.53s cubic-bezier(0.22, 1, 0.36, 1) 0.18s
    forwards;
}

body.is-page-leaving main,
body.is-page-leaving .home__header,
body.is-page-leaving .set__header {
  animation: page-transition-content-out 0.4s ease forwards;
}

body.is-page-entering .page-transition-overlay {
  animation: page-transition-reveal 0.7s cubic-bezier(0.65, 0, 0.35, 1) forwards;
}

body.is-page-entering main,
body.is-page-entering .home__header,
body.is-page-entering .set__header {
  animation: page-transition-content-in 0.7s cubic-bezier(0.22, 1, 0.36, 1)
    forwards;
}

/* Sets : pas de transform sur <main> — évite les bugs Chrome (3D + fixed + menu) */
body.is-page-entering .sets {
  animation: page-transition-sets-in 0.7s cubic-bezier(0.22, 1, 0.36, 1) forwards;
}

body.is-page-leaving .sets {
  animation: page-transition-sets-out 0.4s ease forwards;
}

@keyframes page-transition-sets-in {
  from {
    opacity: 0;
  }

  to {
    opacity: 1;
  }
}

@keyframes page-transition-sets-out {
  from {
    opacity: 1;
  }

  to {
    opacity: 0;
  }
}

@keyframes page-transition-cover {
  from {
    transform: translateY(-100%);
  }

  to {
    transform: translateY(0);
  }
}

@keyframes page-transition-reveal {
  from {
    transform: translateY(0);
  }

  to {
    transform: translateY(100%);
  }
}

@keyframes page-transition-mark {
  from {
    opacity: 0;
    transform: translate(-50%, -50%) scale(0.88);
  }

  to {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1);
  }
}

@keyframes page-transition-line {
  from {
    opacity: 0;
    transform: scaleX(0);
  }

  to {
    opacity: 1;
    transform: scaleX(1);
  }
}

@keyframes page-transition-content-out {
  from {
    opacity: 1;
    transform: translateY(0);
  }

  to {
    opacity: 0;
    transform: translateY(0.35rem);
  }
}

@keyframes page-transition-content-in {
  from {
    opacity: 0;
    transform: translateY(0.5rem);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-transition-mark,
  .page-transition-overlay::after {
    display: none;
  }

  body.is-page-leaving .page-transition-overlay,
  body.is-page-entering .page-transition-overlay {
    animation-duration: 0.01ms;
  }

  body.is-page-leaving main,
  body.is-page-leaving .home__header,
  body.is-page-leaving .set__header,
  body.is-page-entering main,
  body.is-page-entering .home__header,
  body.is-page-entering .set__header,
  body.is-page-entering .sets,
  body.is-page-leaving .sets {
    animation-duration: 0.01ms;
  }
}