/* ═══════════════════════════════════════════════════
   ANJALI DENTAL CARE — gallery.css
═══════════════════════════════════════════════════ */

#gallery-main { padding: 60px 24px 100px; }

/* ── Filter Bar ── */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
  margin-bottom: 48px;
}
.filter-btn {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 9px 20px;
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-mid);
  background: rgba(248,250,252,0.9);
  border: 1.5px solid rgba(14,165,233,0.15);
  border-radius: 99px;
  cursor: pointer;
  transition: all var(--transition);
}
.filter-btn:hover {
  color: var(--primary);
  border-color: rgba(14,165,233,0.4);
  background: rgba(14,165,233,0.05);
}
.filter-btn.active {
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #fff;
  border-color: transparent;
  box-shadow: 0 6px 18px rgba(14,165,233,0.35);
}

/* ── Gallery Masonry/Grid ── */
.gallery-masonry {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  grid-auto-rows: 240px;
  gap: 16px;
  width: 100%;
}

.gal-item {
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: all 0.4s cubic-bezier(0.25,0.46,0.45,0.94);
}
.gal-item.tall { grid-row: span 2; }
.gal-item.wide { grid-column: span 2; }
.gal-item.hidden {
  display: none !important;
}
.gal-item.visible {
  display: block;
}

.gal-inner {
  position: relative;
  width: 100%; height: 100%;
  overflow: hidden;
  border-radius: var(--radius-md);
}
.gal-inner img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}
.gal-item:hover .gal-inner img { transform: scale(1.1); }

.gal-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(2,132,199,0.8) 0%, rgba(2,132,199,0.2) 60%, transparent 100%);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  opacity: 0;
  transition: opacity var(--transition);
}
.gal-item:hover .gal-overlay { opacity: 1; }
.gal-overlay span {
  position: absolute;
  bottom: 16px; left: 16px;
  color: #fff;
  font-size: 0.85rem;
  font-weight: 700;
}
.gal-zoom {
  width: 48px; height: 48px;
  border-radius: 50%;
  background: rgba(255,255,255,0.2);
  border: 2px solid rgba(255,255,255,0.6);
  color: #fff;
  font-size: 1rem;
  display: flex; align-items: center; justify-content: center;
  cursor: pointer;
  transition: all var(--transition);
  backdrop-filter: blur(8px);
}
.gal-zoom:hover {
  background: #fff;
  color: var(--primary);
  transform: scale(1.1);
}

.no-results {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-light);
  width: 100%;
}
.no-results i { font-size: 3rem; margin-bottom: 16px; opacity: 0.4; }
.no-results p { font-size: 1rem; }

/* ── Lightbox ── */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 10000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.35s ease, visibility 0.35s ease;
}
.lightbox.open {
  opacity: 1;
  visibility: visible;
}
.lightbox-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(8,20,40,0.92);
  backdrop-filter: blur(12px);
}
.lightbox-content {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  max-width: 90vw;
  max-height: 90vh;
}
.lb-img-wrap {
  position: relative;
  max-width: 900px;
  max-height: 75vh;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 30px 80px rgba(0,0,0,0.5);
  background: rgba(255,255,255,0.05);
}
#lbImage {
  max-width: 90vw;
  max-height: 70vh;
  width: auto;
  height: auto;
  object-fit: contain;
  display: block;
  transition: opacity 0.3s ease;
}
.lb-loader {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255,255,255,0.7);
  font-size: 1.5rem;
}
.lb-caption {
  color: rgba(255,255,255,0.7);
  font-size: 0.88rem;
  margin-top: 16px;
  text-align: center;
  font-weight: 500;
}
.lb-close {
  position: fixed;
  top: 20px; right: 20px;
  width: 44px; height: 44px;
  border-radius: 50%;
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.2);
  color: #fff;
  font-size: 1.1rem;
  display: flex; align-items: center; justify-content: center;
  cursor: pointer;
  transition: all var(--transition);
  z-index: 2;
}
.lb-close:hover { background: rgba(239,68,68,0.7); transform: scale(1.1); }
.lb-prev, .lb-next {
  position: fixed;
  top: 50%; transform: translateY(-50%);
  width: 48px; height: 48px;
  border-radius: 50%;
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.2);
  color: #fff;
  font-size: 1rem;
  display: flex; align-items: center; justify-content: center;
  cursor: pointer;
  transition: all var(--transition);
  z-index: 2;
}
.lb-prev { left: 20px; }
.lb-next { right: 20px; }
.lb-prev:hover, .lb-next:hover {
  background: var(--primary);
  border-color: var(--primary);
  transform: translateY(-50%) scale(1.1);
}

/* ════════════════════════════════
   RESPONSIVE — GALLERY
════════════════════════════════ */
@media (max-width: 1024px) {
  .gallery-masonry { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 768px) {
  .gallery-masonry { grid-template-columns: repeat(2, 1fr); grid-auto-rows: 200px; }
  .gal-item.tall { grid-row: span 1; }
  .gal-item.wide { grid-column: auto; }
  .lb-prev { left: 8px; }
  .lb-next { right: 8px; }
}
@media (max-width: 480px) {
  .gallery-masonry { grid-template-columns: 1fr 1fr; grid-auto-rows: 180px; }
  .filter-btn { font-size: 0.78rem; padding: 7px 14px; }
}