/* Quiet, shared link and page transitions for the gallery. */
:root {
  --artorb-ease: cubic-bezier(.22, 1, .36, 1);
}

.artorb-nav-link {
  position: relative;
  display: inline-block;
  padding-block: 8px;
  -webkit-tap-highlight-color: transparent;
  transition: color 180ms ease, translate 220ms var(--artorb-ease);
}

.artorb-nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 2px;
  height: 1px;
  background: currentColor;
  opacity: 0;
  transform: scaleX(.65);
  transition: opacity 180ms ease, transform 220ms var(--artorb-ease);
}

@media (hover: hover) {
  .artorb-nav-link:hover { translate: 0 -2px; }
  .artorb-nav-link:hover::after { opacity: .55; transform: scaleX(1); }
}

@media (pointer: coarse) {
  .artorb-nav-link { padding-block: 14px; }
  .artorb-nav-link::after { bottom: 8px; }
}

.artorb-nav-link:focus-visible {
  outline: 1px solid currentColor;
  outline-offset: 5px;
  border-radius: 2px;
}
.artorb-nav-link:active { translate: 0 1px; }

/* A grey veil leaves the WebGL canvas and fixed-position layout untouched. */
html::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 2147483647;
  background: #bfbfbf;
  opacity: 0;
  pointer-events: none;
  transition: opacity 180ms ease;
  animation: artorb-arrive 320ms ease-out both;
}
html.artorb-leaving::after {
  animation: artorb-depart 180ms ease-in both;
  opacity: 1;
  pointer-events: auto;
}
@keyframes artorb-depart {
  from { opacity: 0; }
  to { opacity: 1; }
}
@keyframes artorb-arrive {
  from { opacity: 1; }
  to { opacity: 0; }
}

@media (prefers-reduced-motion: reduce) {
  .artorb-nav-link, .artorb-nav-link::after { transition: none; }
  .artorb-nav-link:hover, .artorb-nav-link:active { translate: none; }
  html::after, html.artorb-leaving::after { animation: none; transition: none; }
}