/* =====================================================
   PHOTO GALLERY
   ===================================================== */

/* Filter Tabs */
.gallery-filters {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  flex-wrap: wrap;
  margin-bottom: var(--space-10);
}

.gallery-filter-btn {
  padding: 0.5rem 1.25rem;
  border-radius: var(--radius-full);
  border: 2px solid var(--color-grey-300);
  background: transparent;
  color: var(--color-grey-700);
  font-size: var(--text-sm);
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-base);
  text-transform: capitalize;
}

.gallery-filter-btn:hover,
.gallery-filter-btn.is-active {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: var(--color-white);
}

/* Gallery Grid */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}

/* Gallery Event Card */
.gallery-card {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--color-grey-100);
  box-shadow: var(--shadow-sm);
  cursor: pointer;
  transition: box-shadow var(--transition-base), transform var(--transition-base);
  aspect-ratio: 4 / 3;
}

.gallery-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

.gallery-card__thumb {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform var(--transition-slow);
}

.gallery-card:hover .gallery-card__thumb {
  transform: scale(1.06);
}

.gallery-card__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to top,
    rgba(11,40,27,0.85) 0%,
    rgba(11,40,27,0.20) 60%,
    transparent 100%
  );
  opacity: 0;
  transition: opacity var(--transition-base);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: var(--space-5);
}

.gallery-card:hover .gallery-card__overlay {
  opacity: 1;
}

.gallery-card__title {
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--color-white);
  margin-bottom: var(--space-1);
  transform: translateY(10px);
  transition: transform var(--transition-base);
}

.gallery-card:hover .gallery-card__title {
  transform: translateY(0);
}

.gallery-card__meta {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  transform: translateY(10px);
  transition: transform var(--transition-base) 50ms;
}

.gallery-card:hover .gallery-card__meta {
  transform: translateY(0);
}

.gallery-card__date {
  font-size: var(--text-xs);
  color: rgba(255,255,255,0.80);
}

.gallery-card__category {
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  background: var(--color-accent);
  color: var(--color-primary);
  padding: 2px 8px;
  border-radius: var(--radius-full);
}

/* Photo count badge */
.gallery-card__count {
  position: absolute;
  top: var(--space-3);
  right: var(--space-3);
  background: rgba(0,0,0,0.6);
  backdrop-filter: blur(4px);
  color: var(--color-white);
  font-size: var(--text-xs);
  font-weight: 600;
  padding: 4px 10px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  gap: 4px;
}

/* Load More */
.gallery-load-more {
  display: flex;
  justify-content: center;
  margin-top: var(--space-10);
}

/* =====================================================
   LIGHTBOX OVERLAY
   ===================================================== */

.lightbox-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.95);
  z-index: 9999;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--space-4);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-base), visibility var(--transition-base);
}

.lightbox-overlay.is-open {
  opacity: 1;
  visibility: visible;
}

.lightbox-content {
  position: relative;
  max-width: 90vw;
  max-height: 80vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

.lightbox-image {
  max-width: 90vw;
  max-height: 75vh;
  object-fit: contain;
  border-radius: var(--radius-md);
  box-shadow: 0 20px 60px rgba(0,0,0,0.5);
}

.lightbox-close {
  position: absolute;
  top: var(--space-4);
  right: var(--space-4);
  width: 44px;
  height: 44px;
  background: rgba(255,255,255,0.15);
  backdrop-filter: blur(8px);
  border: none;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--text-xl);
  color: var(--color-white);
  transition: background-color var(--transition-fast);
  z-index: 1;
}

.lightbox-close:hover {
  background: rgba(255,255,255,0.25);
}

.lightbox-prev,
.lightbox-next {
  position: fixed;
  top: 50%;
  transform: translateY(-50%);
  width: 56px;
  height: 56px;
  background: rgba(255,255,255,0.10);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255,255,255,0.20);
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--text-2xl);
  color: var(--color-white);
  transition: background-color var(--transition-fast);
  z-index: 1;
}

.lightbox-prev { left: var(--space-4); }
.lightbox-next { right: var(--space-4); }

.lightbox-prev:hover,
.lightbox-next:hover {
  background: rgba(255,255,255,0.20);
}

.lightbox-caption {
  margin-top: var(--space-4);
  text-align: center;
  color: rgba(255,255,255,0.80);
  font-size: var(--text-sm);
  max-width: 600px;
}

.lightbox-counter {
  margin-top: var(--space-2);
  font-size: var(--text-xs);
  color: rgba(255,255,255,0.50);
  letter-spacing: 0.08em;
}

/* Thumbnail strip */
.lightbox-thumbs {
  display: flex;
  gap: var(--space-2);
  margin-top: var(--space-4);
  max-width: 100%;
  overflow-x: auto;
  scrollbar-width: none;
  padding-bottom: var(--space-2);
}

.lightbox-thumbs::-webkit-scrollbar { display: none; }

.lightbox-thumb {
  width: 60px;
  height: 60px;
  flex-shrink: 0;
  border-radius: var(--radius-sm);
  overflow: hidden;
  cursor: pointer;
  opacity: 0.5;
  transition: opacity var(--transition-fast), transform var(--transition-fast);
  border: 2px solid transparent;
}

.lightbox-thumb.is-active,
.lightbox-thumb:hover {
  opacity: 1;
  transform: scale(1.05);
  border-color: var(--color-accent);
}

.lightbox-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  pointer-events: none;
}

/* =====================================================
   RESPONSIVE
   ===================================================== */

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

@media (max-width: 600px) {
  .gallery-grid { grid-template-columns: 1fr; }

  .lightbox-prev,
  .lightbox-next { width: 44px; height: 44px; font-size: var(--text-lg); }
}