main img.can-enlarge { cursor: zoom-in; }
main img.can-enlarge:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }
html.has-image-lightbox { overflow: hidden; }

.image-lightbox {
  box-sizing: border-box;
  width: calc(100% - 2rem);
  height: calc(100vh - 2rem);
  height: calc(100dvh - 2rem);
  max-width: none;
  max-height: none;
  margin: auto;
  padding: 1rem;
  border: 1px solid var(--rule);
  background: var(--paper);
  color: var(--ink);
}
.image-lightbox[open] {
  display: grid;
  grid-template-rows: auto minmax(0, 1fr) auto;
  gap: 0.75rem;
}
.image-lightbox::backdrop { background: color-mix(in srgb, var(--paper) 85%, transparent); }
.image-lightbox__toolbar {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem 1rem;
  font: 500 var(--font-utility) var(--text);
}
.image-lightbox__toolbar button {
  min-height: 2.75rem;
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--rule-strong);
  background: var(--paper);
  color: var(--ink);
  font: inherit;
  cursor: pointer;
}
.image-lightbox__toolbar [data-image-close] { margin-left: auto; }
.image-lightbox__viewport {
  display: block;
  min-width: 0;
  min-height: 0;
  overflow: auto;
  overscroll-behavior: contain;
  background: var(--paper);
}
.image-lightbox__canvas {
  display: flex;
  align-items: center;
  justify-content: center;
}
.image-lightbox__toolbar [data-image-prev],
.image-lightbox__toolbar [data-image-next] {
  min-width: 3rem;
  min-height: 3rem;
  background: #172321;
  color: #fff;
  border-color: #879893;
  font-size: 1.75rem;
}
.image-lightbox__toolbar [hidden] { display: none; }
.image-lightbox__image {
  display: block;
  width: auto;
  height: auto;
  max-width: none;
  max-height: none;
  flex: none;
  margin: 0;
  object-fit: contain;
  background: #fff;
}
.image-lightbox.is-actual-size .image-lightbox__viewport { display: block; }
.image-lightbox__caption {
  max-height: 7rem;
  overflow: auto;
  margin: 0;
  color: var(--ink-soft);
  font-size: var(--font-caption);
  line-height: 1.45;
}
@media (max-width: 480px) {
  .image-lightbox { padding: 0.5rem; gap: 0.5rem; }
  .image-lightbox__toolbar { gap: 0.35rem; }
  .image-lightbox__toolbar a { order: 3; width: 100%; }
  .image-lightbox__caption { max-height: 6rem; }
}
@media print { .image-lightbox { display: none !important; } }