/* Photo gallery + full-screen lightbox (screens layer so it outranks the
   generic dialog component styles). */
@layer screens {
.gallery-thumbs {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-2);
}

.gallery-thumb {
  padding: 0;
  border: var(--border-width) solid var(--border-strong);
  background: none;
  cursor: pointer;
  line-height: 0;

  & img {
    display: block;
    width: 72px;
    height: 72px;
    object-fit: cover;
  }

  &:focus-visible {
    outline: 3px solid var(--focus-ring);
    outline-offset: 2px;
  }
}

dialog.lightbox {
  position: fixed;
  inset: 0;
  width: 100vw;
  max-width: 100vw;
  height: 100dvh;
  max-height: 100dvh;
  margin: 0;
  padding: 0;
  border: none;
  background: var(--ink);
  color: var(--white);

  &[open] {
    display: flex;
    flex-direction: column;
  }

  &::backdrop {
    background: var(--ink);
  }
}

.lightbox-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-3);
  padding: var(--spacing-3) var(--spacing-4);
}

.lightbox-button {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--gray-300);
  font-family: var(--font-family-base);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-bold);
  text-decoration: none;
  min-height: var(--tap-min);
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-1);

  &:hover {
    color: var(--white);
  }

  &:focus-visible {
    outline: 3px solid var(--focus-ring);
    outline-offset: 2px;
  }
}

.lightbox-counter {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-bold);
  color: var(--gray-300);
}

.lightbox-main {
  position: relative;
  flex: 1;
  min-height: 0;
  display: flex;
  align-items: center;
  justify-content: center;

  & img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
  }
}

.lightbox-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: var(--tap-min);
  height: var(--tap-min);
  display: none;
  align-items: center;
  justify-content: center;
  background: var(--gray-900);
  color: var(--white);
  border: var(--border-width) solid var(--gray-700);
  font-size: var(--font-size-2xl);
  cursor: pointer;

  &--prev { inset-inline-start: var(--spacing-4); }
  &--next { inset-inline-end: var(--spacing-4); }

  &:focus-visible {
    outline: 3px solid var(--focus-ring);
    outline-offset: 2px;
  }
}

/* Arrows on pointer devices; touch swipes instead */
@media (min-width: 600px) {
  .lightbox-arrow {
    display: flex;
  }
}

.lightbox-caption {
  padding: var(--spacing-2) var(--spacing-4);
  font-size: var(--font-size-sm);
  color: var(--gray-300);
  text-align: center;
}

.lightbox-thumbs {
  display: flex;
  gap: var(--spacing-2);
  padding: var(--spacing-3) var(--spacing-4) var(--spacing-4);
  overflow-x: auto;
  justify-content: safe center;
}

.lightbox-thumb {
  padding: 0;
  border: var(--border-width) solid var(--gray-700);
  background: none;
  cursor: pointer;
  line-height: 0;
  flex-shrink: 0;

  & img {
    display: block;
    width: 56px;
    height: 56px;
    object-fit: cover;
    opacity: 0.55;
  }

  &.is-current {
    border-color: var(--accent);
    outline: 2px solid var(--accent);
  }

  &.is-current img {
    opacity: 1;
  }

  &:focus-visible {
    outline: 3px solid var(--focus-ring);
  }
}
}