/* =========================================
   LUMINA GALLERY — gallery.css
   ========================================= */

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.2rem;
  max-width: var(--max-w);
  margin: 0 auto;
}

/* Masonry-like featured spans */
.photo-card:nth-child(7n+1) { grid-column: span 2; }
.photo-card:nth-child(7n+5) { grid-column: span 2; }

.photo-card {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-lg);
  cursor: pointer;
  background: var(--ink);
  aspect-ratio: 4/3;
  transition: transform var(--transition), box-shadow var(--transition);
}

.photo-card:nth-child(7n+1),
.photo-card:nth-child(7n+5) {
  aspect-ratio: 16/9;
}

.photo-card img {
  width: 100%; height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.6s cubic-bezier(0.4,0,0.2,1), filter 0.4s ease;
  filter: brightness(0.95) saturate(0.9);
}

.photo-card:hover img {
  transform: scale(1.06);
  filter: brightness(1) saturate(1);
}

.photo-card-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(
    to bottom,
    transparent 40%,
    rgba(16,13,10,0.75) 100%
  );
  opacity: 0;
  transition: opacity var(--transition);
  display: flex; flex-direction: column;
  justify-content: flex-end;
  padding: 1.5rem;
}

.photo-card:hover .photo-card-overlay { opacity: 1; }

.photo-card-cat {
  font-size: 0.62rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 0.3rem;
}

.photo-card-title {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 300;
  font-style: italic;
  color: var(--cream);
  line-height: 1.2;
}

.photo-card-author {
  font-size: 0.75rem;
  color: rgba(245,240,232,0.6);
  margin-top: 0.3rem;
}

.photo-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 16px 48px rgba(16,13,10,0.3);
}

/* Filter animation */
.photo-card.hide {
  display: none;
}

.photo-card.show {
  animation: cardAppear 0.4s ease both;
}

@keyframes cardAppear {
  from { opacity: 0; transform: scale(0.96) translateY(8px); }
  to { opacity: 1; transform: scale(1) translateY(0); }
}

/* Staggered load animation */
.photo-card { animation: cardAppear 0.5s ease both; }
.photo-card:nth-child(1) { animation-delay: 0.05s; }
.photo-card:nth-child(2) { animation-delay: 0.1s; }
.photo-card:nth-child(3) { animation-delay: 0.15s; }
.photo-card:nth-child(4) { animation-delay: 0.2s; }
.photo-card:nth-child(5) { animation-delay: 0.25s; }
.photo-card:nth-child(6) { animation-delay: 0.3s; }
.photo-card:nth-child(7) { animation-delay: 0.35s; }
.photo-card:nth-child(8) { animation-delay: 0.4s; }

/* Responsive grid adjustments */
@media (max-width: 900px) {
  .gallery-grid {
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  }
  .photo-card:nth-child(7n+1),
  .photo-card:nth-child(7n+5) {
    grid-column: span 1;
    aspect-ratio: 4/3;
  }
}

@media (max-width: 520px) {
  .gallery-grid {
    grid-template-columns: 1fr 1fr;
    gap: 0.6rem;
  }
  .photo-card-overlay { opacity: 1; }
}

@media (max-width: 360px) {
  .gallery-grid { grid-template-columns: 1fr; }
}