html.is-transitioning,
html.is-transitioning body {
  overflow: hidden;
}

.page-transition {
  position: fixed;
  inset: 0;
  z-index: 99999;
  pointer-events: none;
  display: grid;
  place-items: center;
  opacity: 0;
  visibility: hidden;
}

.page-transition.is-visible {
  opacity: 1;
  visibility: visible;
}

.page-transition__bg {
  position: absolute;
  inset: 0;
  background: #111;
  opacity: 0;
  transition: opacity 0.18s linear;
}

.page-transition__logo-wrap {
  position: relative;
  z-index: 2;
  width: 120px;
  height: 120px;
  display: grid;
  place-items: center;
  transform: scale(0.2);
  opacity: 0;
}

.page-transition__logo {
  width: 100%;
  height: 100%;
  display: block;
}

.page-transition.is-leaving .page-transition__bg {
  opacity: 1;
}

.page-transition.is-leaving .page-transition__logo-wrap {
  opacity: 1;
  animation: logo-expand 0.9s cubic-bezier(.22, 1, .36, 1) forwards;
}

.page-transition.is-entering .page-transition__bg {
  opacity: 1;
}

.page-transition.is-entering .page-transition__logo-wrap {
  opacity: 1;
  animation: logo-shrink 0.9s cubic-bezier(.22, 1, .36, 1) forwards;
}

@keyframes logo-expand {
  0% {
    transform: scale(0.2);
    opacity: 1;
  }

  100% {
    transform: scale(40);
    opacity: 1;
  }
}

@keyframes logo-shrink {
  0% {
    transform: scale(40);
    opacity: 1;
  }
  100% {
    transform: scale(0.2);
    opacity: 0;
  }
}