/* ============================================
   GALLERY PAGE — Grid, Filter, Lightbox
   ============================================ */

.gallery-filters {
  display: flex;
  justify-content: center;
  gap: var(--space-md);
  margin-bottom: var(--space-2xl);
  flex-wrap: wrap;
}

.filter-btn {
  padding: 10px 28px;
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 400;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-gray);
  background: transparent;
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 30px;
  cursor: pointer;
  transition: all var(--transition-base);
}

.filter-btn:hover, .filter-btn.active {
  color: var(--color-dark);
  background: var(--color-accent);
  border-color: var(--color-accent);
}

/* Grid layout — fills horizontally row by row */
.masonry-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
}

.masonry-item {
  position: relative;
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  cursor: pointer;
  aspect-ratio: 4/5;
}

.masonry-item:nth-child(3n+1) { aspect-ratio: 3/4; }
.masonry-item:nth-child(3n+2) { aspect-ratio: 4/5; }
.masonry-item:nth-child(3n+3) { aspect-ratio: 3/4; }

.masonry-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.8s var(--ease-out);
}

.masonry-item:hover img { transform: scale(1.08); }

.masonry-overlay {
  position: absolute; top: 0; left: 0; width: 100%; height: 100%;
  background: linear-gradient(to top, rgba(107,15,26,0.8) 0%, transparent 60%);
  opacity: 0;
  transition: opacity var(--transition-base);
  display: flex; align-items: flex-end; padding: var(--space-lg);
}

.masonry-item:hover .masonry-overlay { opacity: 1; }

.masonry-overlay-content {
  transform: translateY(20px);
  transition: transform var(--transition-base);
}

.masonry-item:hover .masonry-overlay-content { transform: translateY(0); }

.masonry-overlay h4 { font-family: var(--font-heading); font-size: var(--text-lg); color: var(--color-primary); }
.masonry-overlay p { font-size: var(--text-xs); color: var(--color-accent); letter-spacing: 0.15em; text-transform: uppercase; }

/* Lightbox */
.lightbox {
  position: fixed; top: 0; left: 0; width: 100%; height: 100%;
  background: rgba(0,0,0,0.95);
  z-index: var(--z-modal);
  display: flex; align-items: center; justify-content: center;
  opacity: 0; visibility: hidden;
  transition: all 0.4s var(--ease-out);
  backdrop-filter: blur(10px);
}

.lightbox.open { opacity: 1; visibility: visible; }

.lightbox-image {
  max-width: 90%; max-height: 85vh; object-fit: contain;
  transform: scale(0.9); transition: transform 0.4s var(--ease-out);
}

.lightbox.open .lightbox-image { transform: scale(1); }

.lightbox-close, .lightbox-nav {
  position: absolute; width: 48px; height: 48px;
  background: rgba(255,255,255,0.1); border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  cursor: pointer; transition: all var(--transition-base); border: none;
}

.lightbox-close { top: 30px; right: 30px; }
.lightbox-close:hover { background: var(--color-secondary); }
.lightbox-nav { top: 50%; transform: translateY(-50%); }
.lightbox-nav:hover { background: var(--color-accent); }
.lightbox-close svg, .lightbox-nav svg { width: 20px; height: 20px; stroke: var(--color-primary); }
.lightbox-prev { left: 30px; }
.lightbox-next { right: 30px; }

.lightbox-counter {
  position: absolute; bottom: 30px; left: 50%; transform: translateX(-50%);
  font-size: var(--text-sm); color: var(--color-gray);
}

@media (max-width: 1024px) {
  .masonry-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .masonry-grid { grid-template-columns: 1fr; }
  .masonry-item { aspect-ratio: 4/5 !important; }
  .filter-btn { padding: 8px 18px; font-size: 0.65rem; }
}