/* Page transitions with branded APNG loader */

.artech-page-loader {
  --artech-loader-size: 120px;
  position: fixed;
  inset: 0;
  z-index: 2147483000;
  display: grid;
  place-items: center;
  margin: 0;
  padding: 0;
  background: #000000;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition:
    opacity 0.28s cubic-bezier(0.4, 0, 0.2, 1),
    visibility 0.28s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Cover first paint before the loader node mounts */
html.artech-loading::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 2147482999;
  background: #000000;
}

.artech-page-loader__mark {
  width: var(--artech-loader-size);
  height: var(--artech-loader-size);
  object-fit: contain;
  user-select: none;
  -webkit-user-drag: none;
}

html.artech-loading .artech-page-loader {
  opacity: 1;
  visibility: visible;
  pointer-events: all;
}

@media (max-width: 767px) {
  .artech-page-loader {
    --artech-loader-size: 96px;
  }
}

@media (prefers-reduced-motion: no-preference) {
  /* Disable native MPA VT so the branded loader owns the transition. */
  @view-transition {
    navigation: none;
  }

  html.artech-page-exit body > :not(.artech-page-loader) {
    opacity: 0.35;
    filter: blur(3px);
    transition:
      opacity 0.28s cubic-bezier(0.4, 0, 0.2, 1),
      filter 0.28s cubic-bezier(0.4, 0, 0.2, 1);
  }

  html.artech-page-ready body > :not(.artech-page-loader) {
    opacity: 0;
  }

  html.artech-page-enter body > :not(.artech-page-loader) {
    opacity: 1;
    transition: opacity 0.45s cubic-bezier(0.22, 1, 0.36, 1);
  }
}

@media (prefers-reduced-motion: reduce) {
  .artech-page-loader {
    transition: none;
  }

  html.artech-loading .artech-page-loader__mark {
    animation: none;
  }
}