body.fullscreen { position: relative; }

.container.fullscreen-layout {
  display: grid;
  grid-template-columns: 1fr;
  grid-template-rows: auto 1fr;
  padding: 0;
}

.fullscreen-image {
  grid-column: 1;
  grid-row: 1;
  max-width: 100%;
  max-height: 100vh;
  object-fit: contain;
  align-self: start;
  justify-self: center;
  view-transition-name: photo;
}

.fullscreen-image--hidden { display: none !important; }

.metadata-panel {
  grid-column: 1;
  grid-row: 2;
  height: 100%;
}

.fullscreen-image--flip-out { animation: flip-hide 0.16s cubic-bezier(0.4, 0, 1, 1) forwards; }
.fullscreen-image--flip-in  { animation: flip-show 0.16s cubic-bezier(0, 0, 0.6, 1) forwards; }

@keyframes flip-hide { to   { transform: perspective(900px) rotateY(90deg);  } }
@keyframes flip-show { from { transform: perspective(900px) rotateY(-90deg); } }

html.show-verso #image-recto { display: none !important; }
html.show-verso #image-verso { display: block !important; }

@media (min-width: 1500px) {
  .container.fullscreen-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    overflow: hidden;
  }

  .fullscreen-image {
    grid-column: 1;
    grid-row: 1;
    max-width: 50vw;
    max-height: 100vh;
    align-self: start;
    justify-self: center;
  }

  .metadata-panel {
    grid-column: 2;
    grid-row: 1;
    height: 100%;
    overflow-y: auto;
  }
}