/* ============================================
   GALLERY — Styles
   ============================================ */

/* ---------- Gallery Hero Override ---------- */
.gallery-hero {
  min-height: 55vh;
}

/* ---------- Filter Buttons ---------- */
.gallery-filters {
  display: flex;
  justify-content: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-lg);
  flex-wrap: wrap;
}

.filter-btn {
  padding: 0.65rem 1.5rem;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: var(--font-size-sm);
  color: var(--gray-500);
  background: rgba(255, 255, 255, 0.6);
  border: 1px solid var(--gray-200);
  cursor: pointer;
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.filter-btn::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.2) 0%, transparent 50%);
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.filter-btn:hover {
  color: var(--primary);
  border-color: var(--primary);
  transform: translateY(-1px);
}

.filter-btn:hover::after {
  opacity: 1;
}

.filter-btn.active {
  background: var(--primary);
  color: var(--white);
  border-color: var(--primary);
  box-shadow: 0 4px 14px rgba(23, 68, 155, 0.3);
}

/* ---------- Photo Count ---------- */
.gallery-count {
  text-align: center;
  font-size: var(--font-size-sm);
  color: var(--gray-400);
  margin-bottom: var(--space-2xl);
  font-weight: 500;
}

/* ---------- Masonry Grid ---------- */
.gallery-grid {
  columns: 4;
  column-gap: var(--space-md);
}

/* ---------- Gallery Item ---------- */
.gallery-item {
  break-inside: avoid;
  margin-bottom: var(--space-md);
  border-radius: var(--radius);
  overflow: hidden;
  position: relative;
  cursor: pointer;
  transition: all var(--transition-base);
  background: var(--gray-100);
}

.gallery-item img {
  width: 100%;
  height: auto;
  display: block;
  transition: transform 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

.gallery-item:hover img {
  transform: scale(1.05);
}

/* Overlay on hover */
.gallery-item-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top,
    rgba(15, 23, 42, 0.7) 0%,
    rgba(15, 23, 42, 0.15) 40%,
    transparent 100%
  );
  display: flex;
  align-items: flex-end;
  padding: var(--space-md);
  opacity: 0;
  transition: opacity var(--transition-base);
}

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

.gallery-item-tag {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  background: var(--primary);
  color: var(--white);
  border-radius: var(--radius);
  font-size: var(--font-size-xs);
  font-weight: 600;
  letter-spacing: 0.03em;
  transform: translateY(8px);
  transition: transform var(--transition-base);
}

.gallery-item:hover .gallery-item-tag {
  transform: translateY(0);
}

.gallery-item-tag.society-tag {
  background: var(--secondary);
}

/* Hidden items during filter */
.gallery-item.hidden {
  display: none;
}

/* ---------- Lightbox ---------- */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: rgba(0, 0, 0, 0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-base);
}

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

.lightbox-content {
  max-width: 90vw;
  max-height: 85vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

.lightbox-content img {
  max-width: 100%;
  max-height: 85vh;
  object-fit: contain;
  border-radius: var(--radius);
  box-shadow: 0 20px 80px rgba(0, 0, 0, 0.5);
  transform: scale(0.9);
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.lightbox.active .lightbox-content img {
  transform: scale(1);
}

/* Lightbox close button */
.lightbox-close {
  position: absolute;
  top: var(--space-xl);
  right: var(--space-xl);
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: var(--radius);
  color: var(--white);
  cursor: pointer;
  transition: all var(--transition-base);
  z-index: 10;
}

.lightbox-close:hover {
  background: rgba(255, 255, 255, 0.2);
  transform: scale(1.1);
}

/* Lightbox navigation */
.lightbox-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 52px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius);
  color: var(--white);
  cursor: pointer;
  transition: all var(--transition-base);
  z-index: 10;
}

.lightbox-nav:hover {
  background: rgba(255, 255, 255, 0.18);
  transform: translateY(-50%) scale(1.08);
}

.lightbox-prev {
  left: var(--space-xl);
}

.lightbox-next {
  right: var(--space-xl);
}

/* Lightbox counter */
.lightbox-counter {
  position: absolute;
  bottom: var(--space-xl);
  left: 50%;
  transform: translateX(-50%);
  color: rgba(255, 255, 255, 0.5);
  font-size: var(--font-size-sm);
  font-weight: 600;
  letter-spacing: 0.1em;
}

/* ---------- Responsive ---------- */

@media (max-width: 1024px) {
  .gallery-grid {
    columns: 3;
  }
}

@media (max-width: 768px) {
  .gallery-grid {
    columns: 2;
    column-gap: var(--space-sm);
  }

  .gallery-item {
    margin-bottom: var(--space-sm);
  }

  .gallery-hero {
    min-height: 45vh;
  }

  .lightbox-prev {
    left: var(--space-sm);
  }

  .lightbox-next {
    right: var(--space-sm);
  }

  .lightbox-close {
    top: var(--space-md);
    right: var(--space-md);
    width: 40px;
    height: 40px;
  }

  .lightbox-nav {
    width: 42px;
    height: 42px;
  }
}

@media (max-width: 480px) {
  .gallery-grid {
    columns: 2;
  }

  .filter-btn {
    padding: 0.5rem 1rem;
    font-size: var(--font-size-xs);
  }
}