/* ═══════════════════════════════════════════════════
   DIGITAL DENTAL ZONE — GALLERY PAGE STYLES
   Before/After transformations, general clinic gallery,
   horizontal drag/scroll carousels, and fullscreen lightbox
   ═══════════════════════════════════════════════════ */

/* ── Gallery Hero Section ── */
.gallery-hero {
  padding-top: calc(var(--nav-height) + 40px);
  padding-bottom: var(--space-2xl);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.gallery-hero::before {
  content: '';
  position: absolute;
  top: 10%;
  left: 50%;
  transform: translateX(-50%);
  width: 650px;
  height: 350px;
  background: radial-gradient(circle, rgba(196, 72, 94, 0.15) 0%, rgba(15, 23, 42, 0) 70%);
  filter: blur(50px);
  pointer-events: none;
  z-index: 0;
}

.gallery-hero .section-inner {
  position: relative;
  z-index: 1;
  max-width: 900px;
}

.gallery-hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: rgba(196, 72, 94, 0.12);
  border: 1px solid rgba(196, 72, 94, 0.3);
  border-radius: var(--radius-full);
  font-size: var(--fs-xs);
  font-weight: var(--fw-semibold);
  color: var(--accent);
  margin-bottom: var(--space-md);
  text-transform: uppercase;
  letter-spacing: var(--ls-wide);
}

.gallery-hero-title {
  font-size: clamp(2rem, 4vw, 3.2rem);
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: var(--space-md);
  color: var(--white);
}

.gallery-hero-title em {
  font-style: normal;
  background: linear-gradient(135deg, #FF758C 0%, #C4485E 50%, #FFA8B6 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.gallery-hero-desc {
  font-size: var(--fs-base);
  color: var(--muted);
  line-height: 1.7;
  max-width: 720px;
  margin: 0 auto var(--space-xl);
}

/* ── Stats Strip ── */
.gallery-stats-row {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: var(--space-md);
  margin-bottom: var(--space-2xl);
}

.gallery-stat-pill {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 20px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: transform var(--duration-fast), border-color var(--duration-fast);
}

.gallery-stat-pill:hover {
  transform: translateY(-2px);
  border-color: rgba(196, 72, 94, 0.35);
}

.gallery-stat-icon {
  font-size: 20px;
}

.gallery-stat-text strong {
  display: block;
  font-size: var(--fs-base);
  font-weight: 700;
  color: var(--white);
}

.gallery-stat-text small {
  display: block;
  font-size: var(--fs-xs);
  color: var(--muted);
}

/* ── Modern Segmented Filter Bar ── */
.gallery-filter-bar {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 6px;
  background: rgba(15, 23, 42, 0.85);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border-radius: 16px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5), inset 0 1px 0 rgba(255, 255, 255, 0.15);
  margin-bottom: var(--space-2xl);
  position: sticky;
  top: calc(var(--nav-height) + 16px);
  z-index: 30;
  max-width: fit-content;
}

.gallery-tab-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: 12px;
  font-size: 14px;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.7);
  background: transparent;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.22s cubic-bezier(0.16, 1, 0.3, 1);
  white-space: nowrap;
  user-select: none;
}

.gallery-tab-btn:hover {
  color: #FFFFFF;
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.08);
  transform: translateY(-1px);
}

.gallery-tab-btn.active {
  color: #FFFFFF;
  background: linear-gradient(135deg, #C4485E 0%, #E8849A 100%);
  border-color: rgba(255, 255, 255, 0.25);
  box-shadow: 0 4px 18px rgba(196, 72, 94, 0.45), inset 0 1px 0 rgba(255, 255, 255, 0.3);
  transform: translateY(-1px);
}

.gallery-tab-icon {
  font-size: 14px;
  line-height: 1;
}

.gallery-tab-count {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 22px;
  height: 20px;
  padding: 0 6px;
  border-radius: 10px;
  font-size: 11px;
  font-weight: 700;
  background: rgba(255, 255, 255, 0.12);
  color: rgba(255, 255, 255, 0.9);
  transition: background 0.22s ease;
}

.gallery-tab-btn.active .gallery-tab-count {
  background: rgba(0, 0, 0, 0.3);
  color: #FFFFFF;
}

/* ── Section Dividers & Headers ── */
.gallery-section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: var(--space-xl);
  flex-wrap: wrap;
  gap: var(--space-md);
}

.gallery-section-title-wrap h2 {
  font-size: clamp(1.5rem, 3vw, 2.2rem);
  font-weight: 700;
  color: var(--white);
  margin-bottom: 6px;
}

.gallery-section-title-wrap p {
  color: var(--muted);
  font-size: var(--fs-sm);
}

.carousel-nav-controls {
  display: flex;
  align-items: center;
  gap: 10px;
}

.carousel-nav-btn {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: var(--white);
  font-size: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--duration-fast) ease;
}

.carousel-nav-btn:hover:not(:disabled) {
  background: var(--accent);
  border-color: var(--accent);
  transform: scale(1.05);
  box-shadow: 0 4px 14px rgba(196, 72, 94, 0.4);
}

.carousel-nav-btn:disabled {
  opacity: 0.3;
  cursor: not-allowed;
}

/* ── Before & After Horizontal Carousel / Grid ── */
.ba-carousel-container {
  position: relative;
  margin-bottom: var(--space-3xl);
}

.ba-carousel-track {
  display: flex;
  gap: var(--space-xl);
  overflow-x: auto;
  scroll-behavior: smooth;
  padding: 8px 4px 20px;
  scrollbar-width: thin;
  scrollbar-color: rgba(196, 72, 94, 0.4) rgba(255, 255, 255, 0.04);
  -webkit-overflow-scrolling: touch;
  cursor: grab;
  user-select: none;
}

.ba-carousel-track.is-dragging {
  cursor: grabbing;
  scroll-behavior: auto;
}

.ba-carousel-track::-webkit-scrollbar {
  height: 6px;
}

.ba-carousel-track::-webkit-scrollbar-track {
  background: rgba(255, 255, 255, 0.04);
  border-radius: 4px;
}

.ba-carousel-track::-webkit-scrollbar-thumb {
  background: rgba(196, 72, 94, 0.5);
  border-radius: 4px;
}

.ba-carousel-track::-webkit-scrollbar-thumb:hover {
  background: var(--accent);
}

/* Individual Before/After Card */
.gallery-ba-card {
  flex: 0 0 480px;
  max-width: 480px;
  background: rgba(15, 23, 42, 0.7);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.3);
  transition: transform var(--duration-normal) ease, border-color var(--duration-normal) ease, box-shadow var(--duration-normal) ease;
}

.gallery-ba-card:hover {
  transform: translateY(-4px);
  border-color: rgba(196, 72, 94, 0.4);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.45);
}

.gallery-ba-img-box {
  position: relative;
  width: 100%;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background: #090e1a;
  touch-action: pan-y;
  user-select: none;
}

.gallery-ba-img-box img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  pointer-events: none;
  user-select: none;
}

.gallery-ba-img-box .ba-after {
  clip-path: inset(0 0 0 50%);
  z-index: 2;
}

.gallery-ba-badge {
  position: absolute;
  top: 14px;
  padding: 4px 12px;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  border-radius: var(--radius-full);
  z-index: 4;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  pointer-events: none;
}

.gallery-ba-badge-before {
  left: 14px;
  background: rgba(0, 0, 0, 0.65);
  color: #E2E8F0;
  border: 1px solid rgba(255, 255, 255, 0.15);
}

.gallery-ba-badge-after {
  right: 14px;
  background: rgba(196, 72, 94, 0.85);
  color: #FFFFFF;
  border: 1px solid rgba(255, 255, 255, 0.25);
  box-shadow: 0 2px 10px rgba(196, 72, 94, 0.5);
}

/* ── Keyframe Animations ── */
@keyframes handlePulse {
  0%, 100% {
    box-shadow: 0 0 16px rgba(196, 72, 94, 0.8), 0 0 0 0 rgba(196, 72, 94, 0.6);
  }
  50% {
    box-shadow: 0 0 26px rgba(196, 72, 94, 1), 0 0 0 10px rgba(196, 72, 94, 0);
  }
}

@keyframes galleryCardFadeUp {
  from {
    opacity: 0;
    transform: translateY(28px) scale(0.96);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

@keyframes sectionFadeIn {
  from {
    opacity: 0;
    transform: translateY(16px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.gallery-section {
  animation: sectionFadeIn 0.5s cubic-bezier(0.16, 1, 0.3, 1) backwards;
}

/* Draggable Divider Handle */
.gallery-ba-handle {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  width: 3px;
  background: #FFFFFF;
  z-index: 5;
  transform: translateX(-50%);
  cursor: ew-resize;
  box-shadow: 0 0 12px rgba(0, 0, 0, 0.6);
  transition: width 0.2s ease;
}

.gallery-ba-handle::after {
  content: '⟷';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: linear-gradient(135deg, #C4485E 0%, #E8849A 100%);
  color: #FFFFFF;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 15px;
  font-weight: 800;
  border: 2.5px solid #FFFFFF;
  animation: handlePulse 2.4s infinite ease-in-out;
  cursor: grab;
  transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1), background 0.25s ease;
}

.gallery-ba-handle:hover::after,
.gallery-ba-img-box:hover .gallery-ba-handle::after {
  transform: translate(-50%, -50%) scale(1.15);
  background: linear-gradient(135deg, #D9536E 0%, #FF8BA0 100%);
}

/* ── General Gallery Grid ── */
.gallery-general-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: var(--space-lg);
  margin-bottom: var(--space-3xl);
}

.gallery-photo-card {
  position: relative;
  background: rgba(15, 23, 42, 0.6);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 4 / 3;
  cursor: pointer;
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.25);
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1), border-color 0.3s ease, box-shadow 0.4s ease;
  animation: galleryCardFadeUp 0.6s cubic-bezier(0.16, 1, 0.3, 1) backwards;
  transform-style: preserve-3d;
}

.gallery-photo-card:nth-child(1) { animation-delay: 0.04s; }
.gallery-photo-card:nth-child(2) { animation-delay: 0.10s; }
.gallery-photo-card:nth-child(3) { animation-delay: 0.16s; }
.gallery-photo-card:nth-child(4) { animation-delay: 0.22s; }
.gallery-photo-card:nth-child(5) { animation-delay: 0.28s; }
.gallery-photo-card:nth-child(6) { animation-delay: 0.34s; }
.gallery-photo-card:nth-child(n+7) { animation-delay: 0.40s; }

/* Dynamic Shimmer Light Sweep on Hover */
.gallery-photo-card::after {
  content: '';
  position: absolute;
  top: -60%;
  left: -60%;
  width: 220%;
  height: 220%;
  background: linear-gradient(
    65deg,
    transparent 35%,
    rgba(255, 255, 255, 0.24) 50%,
    transparent 65%
  );
  transform: translateX(-100%) rotate(25deg);
  transition: transform 0.75s ease;
  pointer-events: none;
  z-index: 3;
}

.gallery-photo-card:hover::after {
  transform: translateX(100%) rotate(25deg);
}

.gallery-photo-card:hover {
  transform: translateY(-8px) scale(1.02);
  border-color: rgba(196, 72, 94, 0.6);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5), 0 0 24px rgba(196, 72, 94, 0.35);
}

.gallery-photo-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.gallery-photo-card:hover .gallery-photo-img {
  transform: scale(1.08);
}

.gallery-photo-overlay {
  position: absolute;
  inset: 0;
  background: rgba(10, 15, 29, 0.4);
  backdrop-filter: blur(2px);
  -webkit-backdrop-filter: blur(2px);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.3s ease;
  z-index: 2;
}

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

.gallery-photo-zoom-icon {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: linear-gradient(135deg, #C4485E 0%, #E8849A 100%);
  border: 2px solid rgba(255, 255, 255, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-size: 20px;
  box-shadow: 0 6px 22px rgba(196, 72, 94, 0.7);
  transform: scale(0.75);
  transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.gallery-photo-card:hover .gallery-photo-zoom-icon {
  transform: scale(1);
}

/* ── Empty State ── */
.gallery-empty-state {
  text-align: center;
  padding: var(--space-3xl) var(--space-lg);
  background: rgba(255, 255, 255, 0.02);
  border: 1px dashed rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-lg);
  margin: var(--space-xl) 0;
  display: none;
}

.gallery-empty-state p {
  color: var(--muted);
  font-size: var(--fs-base);
}

/* ── Lightbox Fullscreen Modal ── */
.gallery-lightbox {
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: rgba(5, 8, 16, 0.94);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  display: none;
  align-items: center;
  justify-content: center;
  padding: var(--space-lg);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.gallery-lightbox.active {
  display: flex;
  opacity: 1;
}

.lightbox-content-box {
  position: relative;
  max-width: 960px;
  width: 100%;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  transform: scale(0.92);
  opacity: 0;
  transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.3s ease;
}

.gallery-lightbox.active .lightbox-content-box {
  transform: scale(1);
  opacity: 1;
}

.lightbox-img-wrap {
  position: relative;
  max-height: 70vh;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.lightbox-img {
  max-width: 100%;
  max-height: 70vh;
  object-fit: contain;
  border-radius: var(--radius-md);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.6);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.lightbox-caption-wrap {
  margin-top: var(--space-md);
  text-align: center;
  width: 100%;
  max-width: 700px;
}

.lightbox-title {
  font-size: var(--fs-lg);
  font-weight: 700;
  color: var(--white);
  margin-bottom: 4px;
}

.lightbox-desc {
  font-size: var(--fs-sm);
  color: var(--muted);
  line-height: 1.5;
  margin-bottom: var(--space-md);
}

.lightbox-close-btn {
  position: absolute;
  top: -46px;
  right: 0;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: var(--white);
  font-size: 24px;
  line-height: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--duration-fast);
}

.lightbox-close-btn:hover {
  background: var(--accent);
  transform: scale(1.08);
}

.lightbox-prev-btn,
.lightbox-next-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: rgba(15, 23, 42, 0.85);
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: var(--white);
  font-size: 22px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--duration-fast);
  z-index: 10;
}

.lightbox-prev-btn { left: -60px; }
.lightbox-next-btn { right: -60px; }

.lightbox-prev-btn:hover,
.lightbox-next-btn:hover {
  background: var(--accent);
  border-color: var(--accent);
  transform: translateY(-50%) scale(1.08);
}

/* ── Responsive adjustments ── */
@media (max-width: 1024px) {
  .gallery-ba-card {
    flex: 0 0 420px;
    max-width: 420px;
  }
  .lightbox-prev-btn { left: 10px; }
  .lightbox-next-btn { right: 10px; }
  .lightbox-close-btn { top: 10px; right: 10px; z-index: 20; }
}

@media (max-width: 768px) {
  .gallery-hero {
    padding-top: calc(var(--nav-height) + 20px);
  }
  .gallery-ba-card {
    flex: 0 0 88vw;
    max-width: 88vw;
  }
  .gallery-general-grid {
    grid-template-columns: 1fr;
  }
  .gallery-filter-bar {
    width: 100%;
    max-width: 100%;
    border-radius: 14px;
    gap: 4px;
    padding: 4px;
    flex-wrap: wrap;
    justify-content: center;
  }
  .gallery-tab-btn {
    padding: 8px 12px;
    font-size: 12px;
    border-radius: 10px;
    gap: 5px;
  }
  .carousel-nav-controls {
    display: none;
  }
}