/* ========================================
   GALLERY.CSS - Gallery Page Styles
   ======================================== */

/* ===== GALLERY SECTION ===== */
.gallery-section {
  padding: var(--spacing-xl) 0;
  min-height: 100vh;
}

/* ===== GALLERY HERO ===== */
.gallery-hero {
  text-align: center;
  margin-bottom: var(--spacing-xl);
}

.gallery-hero-title {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 800;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: var(--spacing-sm);
}

.gallery-hero-subtitle {
  font-size: 1.125rem;
  color: var(--color-text-muted);
}

/* ===== CATEGORY TABS ===== */
.gallery-tabs {
  display: flex;
  justify-content: center;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-xl);
  flex-wrap: wrap;
}

.gallery-tab {
  padding: var(--spacing-sm) var(--spacing-lg);
  background: var(--color-bg-card);
  border: var(--border-width) solid var(--color-border);
  border-radius: var(--radius-full);
  color: var(--color-text);
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-normal);
}

.gallery-tab:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.gallery-tab--active {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: var(--color-bg);
}

.gallery-tab--active:hover {
  color: var(--color-bg);
}

/* ===== GALLERY GRID ===== */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-xl);
}

/* ===== GALLERY ITEM ===== */
.gallery-item {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--color-bg-card);
  cursor: pointer;
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.gallery-item::before {
  content: '';
  display: block;
  padding-top: 75%; /* 4:3 aspect ratio default */
}

.gallery-item:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.4);
}

.gallery-item-image {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

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

/* Image overlay with info */
.gallery-item-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: var(--spacing-lg) var(--spacing-md) var(--spacing-md);
  background: linear-gradient(to top, rgba(0, 0, 0, 0.8) 0%, transparent 100%);
  opacity: 0;
  transform: translateY(10px);
  transition: opacity var(--transition-normal), transform var(--transition-normal);
}

.gallery-item:hover .gallery-item-overlay {
  opacity: 1;
  transform: translateY(0);
}

.gallery-item-title {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 4px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.gallery-item-category {
  font-size: 0.8rem;
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* ===== LOADING STATE ===== */
.gallery-loading {
  grid-column: 1 / -1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-xxl);
  color: var(--color-text-muted);
}

.gallery-loading-spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--color-border);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin-bottom: var(--spacing-md);
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* ===== PURCHASE INFO BANNER ===== */
.gallery-purchase-info {
  background: linear-gradient(135deg, rgba(74, 198, 255, 0.1), rgba(148, 103, 255, 0.1));
  border: var(--border-width) solid rgba(74, 198, 255, 0.3);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  text-align: center;
  margin-top: var(--spacing-xl);
}

.gallery-purchase-content h3 {
  font-size: 1.5rem;
  margin-bottom: var(--spacing-sm);
  color: var(--color-text);
}

.gallery-purchase-content p {
  color: var(--color-text-muted);
  margin-bottom: var(--spacing-lg);
  max-width: 500px;
  margin-left: auto;
  margin-right: auto;
}

/* ===== LIGHTBOX ===== */
.gallery-lightbox {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: var(--z-index-modal);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-normal), visibility var(--transition-normal);
}

.gallery-lightbox[aria-hidden="false"] {
  opacity: 1;
  visibility: visible;
}

.gallery-lightbox-backdrop {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.9);
  backdrop-filter: blur(8px);
}

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

.gallery-lightbox-close {
  position: absolute;
  top: -50px;
  right: 0;
  background: transparent;
  border: none;
  color: var(--color-text);
  cursor: pointer;
  padding: var(--spacing-sm);
  opacity: 0.7;
  transition: opacity var(--transition-fast);
  z-index: 10;
}

.gallery-lightbox-close:hover {
  opacity: 1;
}

.gallery-lightbox-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(0, 0, 0, 0.5);
  border: var(--border-width) solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-full);
  color: var(--color-text);
  cursor: pointer;
  padding: var(--spacing-md);
  opacity: 0.7;
  transition: opacity var(--transition-fast), background var(--transition-fast);
  z-index: 10;
}

.gallery-lightbox-nav:hover {
  opacity: 1;
  background: rgba(74, 198, 255, 0.3);
}

.gallery-lightbox-prev {
  left: -80px;
}

.gallery-lightbox-next {
  right: -80px;
}

.gallery-lightbox-image-container {
  display: flex;
  align-items: center;
  justify-content: center;
  max-width: 100%;
  max-height: calc(90vh - 100px);
}

.gallery-lightbox-image {
  max-width: 100%;
  max-height: calc(90vh - 100px);
  object-fit: contain;
  border-radius: var(--radius-md);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}

.gallery-lightbox-info {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  margin-top: var(--spacing-lg);
  padding: var(--spacing-md) var(--spacing-lg);
  background: var(--color-bg-card-alpha-96);
  border-radius: var(--radius-md);
  backdrop-filter: blur(12px);
}

.gallery-lightbox-title {
  font-size: 1.1rem;
  font-weight: 600;
  margin: 0;
}

.gallery-lightbox-category {
  font-size: 0.8rem;
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 4px 10px;
  background: rgba(74, 198, 255, 0.15);
  border-radius: var(--radius-sm);
}

.gallery-lightbox-purchase {
  margin-left: auto;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
  .gallery-grid {
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: var(--spacing-md);
  }

  .gallery-lightbox-nav {
    display: none;
  }

  .gallery-lightbox-info {
    flex-direction: column;
    text-align: center;
    gap: var(--spacing-sm);
  }

  .gallery-lightbox-purchase {
    margin-left: 0;
    width: 100%;
  }

  .gallery-tabs {
    gap: var(--spacing-xs);
  }

  .gallery-tab {
    padding: var(--spacing-xs) var(--spacing-md);
    font-size: 0.85rem;
  }
}

@media (max-width: 480px) {
  .gallery-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-sm);
  }

  .gallery-item-overlay {
    padding: var(--spacing-sm);
  }

  .gallery-item-title {
    font-size: 0.85rem;
  }

  .gallery-item-category {
    font-size: 0.7rem;
  }
}

/* ===== IMAGE PROTECTION ===== */
.gallery-item-image,
.gallery-lightbox-image {
  -webkit-user-select: none;
  user-select: none;
  pointer-events: none;
}

.gallery-item,
.gallery-lightbox-image-container {
  -webkit-touch-callout: none;
}