/* ---------- Gallery grid (pure-CSS masonry via columns) ---------- */

.photo-grid {
  columns: 4 12rem;
  column-gap: var(--space-3);
}

.photo-grid__item {
  display: block;
  position: relative;
  break-inside: avoid;
  margin-bottom: var(--space-3);
  border-radius: var(--radius);
  overflow: hidden;
}

.photo-grid__item img {
  width: 100%;
  height: auto;
  display: block;
  transition: opacity 0.15s ease;
}

.photo-grid__item:hover img,
.photo-grid__item:focus img {
  opacity: 0.85;
}

.photo-grid__caption {
  position: absolute;
  inset: auto 0 0 0;
  padding: var(--space-2) var(--space-2) var(--space-1);
  background: linear-gradient(to top, rgb(0 0 0 / 65%), transparent);
  color: #fff;
  font-size: 0.85rem;
  text-decoration: none;
}

/* ---------- Individual photo page ---------- */

.photo-detail__image {
  border-radius: var(--radius);
  margin-bottom: var(--space-4);
  max-width: 100%;
  height: auto;
}

.exif {
  display: grid;
  grid-template-columns: auto 1fr;
  column-gap: var(--space-3);
  row-gap: var(--space-1);
  margin: 0 0 var(--space-4);
  font-size: 0.9rem;
}

.exif dt {
  color: var(--color-muted);
  font-weight: 500;
}

.exif dd {
  margin: 0;
}

/* ---------- Lightbox ---------- */

.lightbox {
  position: fixed;
  inset: 0;
  background: rgb(0 0 0 / 88%);
  display: none;
  align-items: center;
  justify-content: center;
  padding: var(--space-4);
  z-index: 100;
}

.lightbox[data-open="true"] {
  display: flex;
}

.lightbox__image {
  max-width: 100%;
  max-height: 85vh;
  width: auto;
  height: auto;
  border-radius: var(--radius);
}

.lightbox__close {
  position: absolute;
  top: var(--space-3);
  right: var(--side-padding);
  background: none;
  border: none;
  color: #fff;
  font-size: 1.75rem;
  line-height: 1;
  cursor: pointer;
  padding: var(--space-1);
}

.lightbox__link {
  position: absolute;
  bottom: var(--space-4);
  left: 50%;
  transform: translateX(-50%);
  color: #fff;
  background: rgb(255 255 255 / 15%);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius);
}