/**
 * Gallery Block Styles - Professional Dental Theme
 * 
 * Provides modern, professional styling for gallery blocks with lightbox and lazy loading
 * Designed specifically for dental practices and medical professionals
 */

/* Gallery Container */
.gallery-block-container {
  margin: 3rem 0;
  padding: 2rem 0;
}

.gallery-title {
  font-size: 2.5rem;
  font-weight: 300;
  color: var(--primary-color);
  margin-bottom: 2rem;
  text-align: center;
  letter-spacing: -0.025em;
  position: relative;
}

.gallery-title::after {
  content: '';
  position: absolute;
  bottom: -0.75rem;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 3px;
  background: linear-gradient(
    90deg,
    var(--primary-color),
    var(--secondary-color)
  );
  border-radius: 2px;
}

/* Gallery Grid */
.gallery-with-lightbox {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

/* Gallery Images */
.gallery-with-lightbox figure {
  margin: 0;
  padding: 0;
  position: relative;
  overflow: hidden;
  border-radius: 1rem;
  box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.08),
    0 4px 10px -2px rgba(0, 0, 0, 0.04);
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
  aspect-ratio: 4/3;
  border: 1px solid rgba(226, 232, 240, 0.8);
}

.gallery-with-lightbox figure:hover {
  transform: translateY(-8px) scale(1.02);
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.15),
    0 8px 20px -4px rgba(0, 0, 0, 0.08);
  border-color: var(--primary-color);
}

/* Gallery Image Links */
.gallery-with-lightbox a {
  display: block;
  width: 100%;
  height: 100%;
  text-decoration: none;
  color: inherit;
  position: relative;
  overflow: hidden;
}

/* Gallery Images */
.gallery-with-lightbox img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  display: block;
  margin: 0;
  filter: brightness(0.95) contrast(1.05);
}

.gallery-with-lightbox figure:hover img {
  transform: scale(1.08);
  filter: brightness(1.05) contrast(1.1);
}

/* Lazy Loading Styles */
.gallery-with-lightbox .lazy-image {
  opacity: 0;
  transition: opacity 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  background: linear-gradient(
    135deg,
    #f1f5f9 0%,
    #e2e8f0 25%,
    #cbd5e1 50%,
    #e2e8f0 75%,
    #f1f5f9 100%
  );
  background-size: 400% 400%;
  animation: gallery-loading 2s ease-in-out infinite;
}

.gallery-with-lightbox .lazy-loaded {
  opacity: 1;
  animation: none;
  background: none;
}

.gallery-with-lightbox .lazy-error {
  opacity: 0.6;
  background: linear-gradient(135deg, #fef2f2 0%, #fee2e2 100%);
  border: 1px solid #fecaca;
}

/* Loading Animation */
@keyframes gallery-loading {
  0% {
    background-position: 0% 50%;
  }
  50% {
    background-position: 100% 50%;
  }
  100% {
    background-position: 0% 50%;
  }
}

/* Gallery Image Overlay */
.gallery-with-lightbox figure::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(
    135deg,
    var(--primary-color-15) 0%,
    var(--primary-color-10) 50%,
    var(--secondary-color-05) 100%
  );
  opacity: 0;
  transition: opacity 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  z-index: 1;
  pointer-events: none;
}

.gallery-with-lightbox figure:hover::before {
  opacity: 1;
}

/* Gallery Image Icon */
.gallery-with-lightbox figure::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(0) rotate(0deg);
  width: 48px;
  height: 48px;
  background: rgba(255, 255, 255, 0.95);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  z-index: 2;
  pointer-events: none;
}

.gallery-with-lightbox figure::after {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%231e40af' stroke-width='2'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' d='M21 21l-6-6m2-5a7 7 0 11-14 0 7 7 0 0114 0zM10 7v3m0 0v3m0-3h3m-3 0H7'/%3E%3C/svg%3E");
  background-size: 24px 24px;
  background-position: center;
  background-repeat: no-repeat;
}

.gallery-with-lightbox figure:hover::after {
  transform: translate(-50%, -50%) scale(1) rotate(360deg);
}

/* Click Animation */
.gallery-image-clicked {
  transform: scale(0.98) !important;
  transition: transform 0.15s cubic-bezier(0.4, 0, 0.2, 1) !important;
  box-shadow: 0 15px 35px -10px rgba(0, 0, 0, 0.2) !important;
}

/* Responsive Design */
@media (max-width: 768px) {
  .gallery-block-container {
    margin: 2rem 0;
    padding: 1rem 0;
  }

  .gallery-with-lightbox {
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1rem;
  }

  .gallery-title {
    font-size: 2rem;
    margin-bottom: 1.5rem;
  }

  .gallery-with-lightbox figure {
    border-radius: 0.75rem;
  }

  .gallery-with-lightbox figure::after {
    width: 40px;
    height: 40px;
    background-size: 20px 20px;
  }
}

@media (max-width: 480px) {
  .gallery-with-lightbox {
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 0.75rem;
  }

  .gallery-title {
    font-size: 1.75rem;
  }

  .gallery-with-lightbox figure::after {
    width: 36px;
    height: 36px;
    background-size: 18px 18px;
  }
}

/* Lightbox Open State */
body.lightbox-open {
  overflow: hidden;
}

/* Gallery Caption */
.gallery-with-lightbox figcaption {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: linear-gradient(transparent, var(--primary-color-90));
  color: white;
  padding: 1.25rem;
  font-size: 0.875rem;
  font-weight: 500;
  line-height: 1.4;
  opacity: 0;
  transform: translateY(100%);
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  backdrop-filter: blur(4px);
}

.gallery-with-lightbox figure:hover figcaption {
  opacity: 1;
  transform: translateY(0);
}

/* Gallery Loading States */
.gallery-loading {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 300px;
  background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
  border-radius: 1rem;
  border: 2px dashed #cbd5e1;
  position: relative;
}

.gallery-loading::before {
  content: '';
  width: 40px;
  height: 40px;
  border: 3px solid #e2e8f0;
  border-top: 3px solid #3b82f6;
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin-right: 1rem;
}

.gallery-loading::after {
  content: 'Loading gallery...';
  color: #64748b;
  font-size: 0.875rem;
  font-weight: 500;
}

@keyframes spin {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
}

/* Gallery Error State */
.gallery-error {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 300px;
  background: linear-gradient(135deg, #fef2f2 0%, #fee2e2 100%);
  border: 1px solid #fecaca;
  border-radius: 1rem;
  color: #dc2626;
  font-size: 0.875rem;
  font-weight: 500;
  position: relative;
}

.gallery-error::before {
  content: '⚠️';
  font-size: 1.5rem;
  margin-right: 0.75rem;
}

/* Gallery Empty State */
.gallery-empty {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 300px;
  background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
  border: 2px dashed #cbd5e1;
  border-radius: 1rem;
  color: #64748b;
  font-size: 0.875rem;
  font-weight: 500;
  position: relative;
}

.gallery-empty::before {
  content: '📷';
  font-size: 1.5rem;
  margin-right: 0.75rem;
}

/* Gallery Navigation (if needed) */
.gallery-navigation {
  display: flex;
  justify-content: center;
  gap: 0.75rem;
  margin-top: 2rem;
}

.gallery-nav-button {
  padding: 0.75rem 1.5rem;
  background: linear-gradient(135deg, #3b82f6 0%, #1e40af 100%);
  color: white;
  border: none;
  border-radius: 0.75rem;
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  font-weight: 500;
  font-size: 0.875rem;
  box-shadow: 0 4px 12px var(--secondary-color-30);
}

.gallery-nav-button:hover {
  background: linear-gradient(
    135deg,
    var(--primary-color) 0%,
    var(--secondary-color) 100%
  );
  transform: translateY(-2px);
  box-shadow: 0 8px 20px var(--secondary-color-40);
}

.gallery-nav-button:disabled {
  background: linear-gradient(135deg, #9ca3af 0%, #6b7280 100%);
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

/* Accessibility */
.gallery-with-lightbox a:focus {
  outline: 2px solid #3b82f6;
  outline-offset: 2px;
}

.gallery-with-lightbox img {
  alt: attr(alt);
}

/* Print Styles */
@media print {
  .gallery-with-lightbox {
    grid-template-columns: repeat(2, 1fr);
    gap: 0.5rem;
  }

  .gallery-with-lightbox figure::before,
  .gallery-with-lightbox figure::after {
    display: none;
  }

  .gallery-with-lightbox a {
    pointer-events: none;
  }
}

/* Gallery Editor Controls */
.gallery-image-controls {
  position: absolute;
  top: 8px;
  right: 8px;
  display: flex;
  gap: 6px;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.gallery-image:hover .gallery-image-controls {
  opacity: 1;
}

.replace-image-button,
.remove-image-button {
  padding: 4px 8px;
  font-size: 12px;
  border-radius: 4px;
  border: none;
  cursor: pointer;
  transition: all 0.2s ease;
  backdrop-filter: blur(4px);
  font-weight: 500;
}

.replace-image-button {
  background: var(--secondary-color-90);
  color: white;
}

.replace-image-button:hover {
  background: var(--primary-color-95);
  transform: translateY(-1px);
}

.remove-image-button {
  background: rgba(239, 68, 68, 0.9);
  color: white;
}

.remove-image-button:hover {
  background: rgba(220, 38, 38, 0.95);
  transform: translateY(-1px);
}

.gallery-upload-button {
  display: block;
  margin: 0 auto 2rem;
  padding: 12px 24px;
  background: linear-gradient(135deg, #3b82f6 0%, #1e40af 100%);
  color: white;
  border: none;
  border-radius: 8px;
  font-weight: 600;
  font-size: 16px;
  cursor: pointer;
  transition: all 0.3s ease;
}

.gallery-upload-button:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px var(--secondary-color-40);
}

.gallery-empty {
  text-align: center;
  padding: 3rem;
  color: #6b7280;
  font-style: italic;
  background: #f9fafb;
  border: 2px dashed #d1d5db;
  border-radius: 8px;
}