/* ==========================================================================
   GALLERY PAGE (gallery.html) - MATCHING HISTORY STYLES
   ========================================================================== */

body {
  padding-top: 80px;
}
/* Sticky Inner Page Header */
.site-header-wrapper {
  position: fixed !important;
  top: 0 !important;
  left: 0 !important;
  right: 0 !important;
  z-index: 1000 !important;
  background: var(--color-primary-dark) !important;
}

.site-header {
  position: relative !important;
  width: 100% !important;
  background: rgba(35, 4, 10, 0.95) !important;
  backdrop-filter: blur(16px) !important;
  -webkit-backdrop-filter: blur(16px) !important;
  border-bottom: 1px solid var(--color-border) !important;
  box-shadow: var(--shadow-sm) !important;
}

.site-header.scrolled,
.site-header-wrapper.is-scrolled .site-header {
  background: rgba(26, 2, 7, 0.98) !important;
  border-bottom: 2px solid var(--color-gold) !important;
  box-shadow: var(--shadow-lg) !important;
}

.header-container {
  height: 80px !important;
}

/* Category Filter Bar */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 10px;
  margin-bottom: 2rem;
}

.filter-btn {
  padding: 0.65rem 1.6rem;
  border-radius: var(--radius-full);
  background: rgba(54, 7, 17, 0.7);
  border: 1.5px solid var(--color-border);
  color: var(--color-cream);
  font-weight: 700;
  font-size: 0.92rem;
  cursor: pointer;
  transition: var(--transition-fast);
}

.filter-btn:hover,
.filter-btn.active {
  background: linear-gradient(135deg, var(--color-gold), #ffae00);
  color: #2b050d;
  border-color: #fff;
  box-shadow: 0 0 16px var(--color-gold-glow);
}

/* 4-Column Paginated Gallery Wrapper */
.paginated-gallery-wrapper {
  position: relative;
  width: 100%;
  margin-top: 1.5rem;
}

/* Top-Right Navigation Arrow Controls */
.gallery-controls-header {
  display: flex;
  justify-content: flex-end;
  align-items: center;
  margin-bottom: 1.5rem;
  gap: 12px;
}

.gallery-nav-buttons {
  display: inline-flex;
  gap: 12px;
  align-items: center;
}

.gallery-arrow-btn {
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: rgba(43, 5, 13, 0.9);
  border: 1.5px solid var(--color-gold);
  color: var(--color-gold-light);
  font-size: 1.4rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.6);
  transition: all var(--transition-fast);
  user-select: none;
}

.gallery-arrow-btn:hover:not(:disabled) {
  background: linear-gradient(135deg, var(--color-gold) 0%, #ffae00 100%);
  color: #2b050d;
  transform: translateY(-2px) scale(1.08);
  box-shadow: 0 0 18px var(--color-gold-glow);
}

.gallery-arrow-btn:disabled,
.gallery-arrow-btn.is-disabled {
  opacity: 0.28;
  cursor: not-allowed;
  border-color: rgba(255, 207, 51, 0.25);
  box-shadow: none;
  pointer-events: none;
}

/* 4-Column Grid Sets */
.gallery-set {
  display: none;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.25rem;
  width: 100%;
  opacity: 0;
  transform: scale(0.98);
  transition:
    opacity 0.4s cubic-bezier(0.16, 1, 0.3, 1),
    transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.gallery-set.active {
  display: grid;
  opacity: 1;
  transform: scale(1);
  animation: fadeInSet 0.45s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

@keyframes fadeInSet {
  from {
    opacity: 0;
    transform: translateY(12px) scale(0.98);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

/* History Card Style */
.memory-card {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--color-surface-glass);
  border: 1.5px solid var(--color-border);
  box-shadow: var(--shadow-sm);
  cursor: pointer;
  height: 200px;
  transition:
    transform var(--transition-fast),
    border-color var(--transition-fast),
    box-shadow var(--transition-fast);
}

.memory-card-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.5s ease;
}

.memory-card-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    0deg,
    rgba(20, 2, 6, 0.95) 0%,
    rgba(20, 2, 6, 0.35) 60%,
    transparent 100%
  );
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 1rem 1.15rem;
  opacity: 0;
  transition: opacity var(--transition-normal);
}

.memory-card:hover {
  transform: translateY(-4px) scale(1.02);
  border-color: var(--color-gold);
  box-shadow:
    0 10px 25px rgba(0, 0, 0, 0.8),
    0 0 16px var(--color-gold-glow);
  z-index: 5;
}

.memory-card:hover .memory-card-overlay {
  opacity: 1;
}

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

.memory-card-year {
  font-size: 0.8rem;
  color: var(--color-gold);
  font-weight: 800;
  letter-spacing: 0.5px;
}

.memory-card-caption {
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--color-cream);
  line-height: 1.3;
  margin-top: 2px;
}

/* Video Section Card Styling */
.video-card {
  background: rgba(36, 6, 13, 0.85);
  backdrop-filter: blur(14px);
  padding: 1.25rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
  transition:
    transform var(--transition-fast),
    border-color var(--transition-fast);
}

.video-card:hover {
  transform: translateY(-3px);
  border-color: var(--color-gold);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.7);
}

.video-container {
  position: relative;
  padding-bottom: 56.25%;
  height: 0;
  overflow: hidden;
  border-radius: var(--radius-sm);
  background: #000;
  border: 1px solid rgba(255, 207, 51, 0.3);
}

.video-container iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: none;
}

.video-title {
  margin-top: 1rem;
  font-size: 1.15rem;
  color: var(--color-gold-light);
  font-weight: 700;
}

/* Lightbox Modal */
.lightbox-modal {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 99999;
  background: rgba(15, 1, 4, 0.94);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  align-items: center;
  justify-content: center;
  padding: 2rem;
  opacity: 0;
  transition: opacity 0.3s ease;
}

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

.lightbox-content {
  position: relative;
  max-width: 900px;
  width: 100%;
  text-align: center;
  animation: zoomInLightbox 0.35s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

@keyframes zoomInLightbox {
  from {
    transform: scale(0.92);
    opacity: 0;
  }
  to {
    transform: scale(1);
    opacity: 1;
  }
}

.lightbox-close {
  position: absolute;
  top: -48px;
  right: 0;
  color: var(--color-gold);
  font-size: 2.6rem;
  cursor: pointer;
  font-weight: bold;
  line-height: 1;
  transition:
    transform 0.2s ease,
    color 0.2s ease;
  user-select: none;
}

.lightbox-close:hover {
  color: #ffffff;
  transform: scale(1.18);
}

.lightbox-img {
  max-height: 78vh;
  max-width: 100%;
  margin: 0 auto;
  border-radius: var(--radius-md);
  border: 2px solid var(--color-gold);
  box-shadow: 0 0 40px rgba(255, 207, 51, 0.45);
  object-fit: contain;
  display: block;
}

.lightbox-caption {
  margin-top: 1.25rem;
  font-size: 1.18rem;
  color: var(--color-cream);
  font-weight: 700;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.9);
}

/* Responsive Grid Breakpoints */
@media (max-width: 1024px) {
  .gallery-set {
    grid-template-columns: repeat(3, 1fr) !important;
  }
}

@media (max-width: 768px) {
  .gallery-set {
    grid-template-columns: repeat(2, 1fr) !important;
    gap: 1rem !important;
  }
}

@media (max-width: 520px) {
  .gallery-set {
    grid-template-columns: 1fr !important;
  }
  .gallery-arrow-btn {
    width: 42px;
    height: 42px;
    font-size: 1.25rem;
  }
  .lightbox-modal {
    padding: 1rem;
  }
  .lightbox-close {
    top: -40px;
    font-size: 2.2rem;
  }
}