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

/* Single Image Container */
.single-image-block-container {
  margin: 3rem 0;
  padding: 2rem 0;
  text-align: center;
}

.single-image-title {
  font-size: 2rem;
  font-weight: 300;
  color: var(--primary-color);
  margin-bottom: 1.5rem;
  letter-spacing: -0.025em;
  position: relative;
}

.single-image-title::after {
  content: '';
  position: absolute;
  bottom: -0.5rem;
  left: 50%;
  transform: translateX(-50%);
  width: 40px;
  height: 2px;
  background: linear-gradient(
    90deg,
    var(--primary-color),
    var(--secondary-color)
  );
  border-radius: 1px;
}

/* Single Image Figure */
.single-image-with-lightbox {
  margin: 0 auto;
  max-width: 800px;
  position: relative;
  overflow: hidden;
  border-radius: 16px;
  box-shadow: 0 20px 40px -10px rgba(0, 0, 0, 0.1),
    0 8px 20px -4px rgba(0, 0, 0, 0.05);
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
  border: 1px solid rgba(226, 232, 240, 0.8);
}

.single-image-with-lightbox:hover {
  transform: translateY(-8px) scale(1.02);
  box-shadow: 0 30px 60px -15px rgba(0, 0, 0, 0.15),
    0 12px 30px -6px rgba(0, 0, 0, 0.1);
  border-color: var(--secondary-color-30);
}

/* Single Image Link */
.single-image-with-lightbox a {
  display: block;
  width: 100%;
  height: 100%;
  text-decoration: none;
  color: inherit;
  position: relative;
  overflow: hidden;
}

/* Single Image */
.single-image-with-lightbox img {
  width: 100%;
  height: auto;
  display: block;
  transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  filter: brightness(0.95) contrast(1.05);
  border-radius: 16px;
}

.single-image-with-lightbox:hover img {
  transform: scale(1.05);
  filter: brightness(1.05) contrast(1.1);
}

/* Lazy Loading Styles */
.single-image-with-lightbox .lazy-image {
  opacity: 0;
  transition: opacity 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  background: linear-gradient(
    135deg,
    var(--primary-color-light) 0%,
    var(--primary-color-10) 25%,
    var(--primary-color-15) 50%,
    var(--primary-color-10) 75%,
    var(--primary-color-light) 100%
  );
  background-size: 400% 400%;
  animation: single-image-loading 2s ease-in-out infinite;
  min-height: 400px;
}

.single-image-with-lightbox .lazy-loaded {
  opacity: 1;
  animation: none;
  background: none;
  min-height: auto;
}

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

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

/* Single Image Overlay */
.single-image-with-lightbox::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(
    135deg,
    var(--primary-color-10) 0%,
    var(--secondary-color-05) 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;
  border-radius: 16px;
}

.single-image-with-lightbox:hover::before {
  opacity: 1;
}

/* Single Image Icon */
.single-image-with-lightbox::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(0) rotate(0deg);
  width: 64px;
  height: 64px;
  background: rgba(255, 255, 255, 0.95);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.15);
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  z-index: 2;
  pointer-events: none;
}

.single-image-with-lightbox::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: 32px 32px;
  background-position: center;
  background-repeat: no-repeat;
}

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

/* Click Animation */
.single-image-clicked {
  transform: scale(0.98) !important;
  transition: transform 0.15s cubic-bezier(0.4, 0, 0.2, 1) !important;
  box-shadow: 0 20px 40px -10px rgba(0, 0, 0, 0.2) !important;
}

/* Hover State */
.single-image-hover {
  transform: translateY(-4px) scale(1.01);
}

/* Single Image Caption */
.single-image-caption {
  margin-top: 1.5rem;
  font-size: 1.125rem;
  color: #64748b;
  font-weight: 400;
  line-height: 1.6;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
  padding: 0 1rem;
}

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

  .single-image-title {
    font-size: 1.75rem;
    margin-bottom: 1rem;
  }

  .single-image-with-lightbox {
    border-radius: 12px;
    margin: 0 1rem;
  }

  .single-image-with-lightbox img {
    border-radius: 12px;
  }

  .single-image-with-lightbox::after {
    width: 48px;
    height: 48px;
    background-size: 24px 24px;
  }

  .single-image-caption {
    font-size: 1rem;
    margin-top: 1rem;
  }
}

@media (max-width: 480px) {
  .single-image-title {
    font-size: 1.5rem;
  }

  .single-image-with-lightbox {
    margin: 0 0.5rem;
  }

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

  .single-image-caption {
    font-size: 0.875rem;
    padding: 0 0.5rem;
  }
}

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

/* Single Image Loading States */
.single-image-loading {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 400px;
  background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
  border-radius: 16px;
  border: 2px dashed #cbd5e1;
  position: relative;
}

.single-image-loading::before {
  content: '';
  width: 48px;
  height: 48px;
  border: 3px solid var(--primary-color-15);
  border-top: 3px solid var(--secondary-color);
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin-right: 1rem;
}

.single-image-loading::after {
  content: 'Loading image...';
  color: #64748b;
  font-size: 1rem;
  font-weight: 500;
}

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

/* Single Image Error State */
.single-image-error {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 400px;
  background: linear-gradient(135deg, #fef2f2 0%, #fee2e2 100%);
  border: 1px solid #fecaca;
  border-radius: 16px;
  color: #dc2626;
  font-size: 1rem;
  font-weight: 500;
  position: relative;
}

.single-image-error::before {
  content: '⚠️';
  font-size: 2rem;
  margin-right: 1rem;
}

/* Single Image Empty State */
.single-image-empty {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 400px;
  background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
  border: 2px dashed #cbd5e1;
  border-radius: 16px;
  color: #64748b;
  font-size: 1rem;
  font-weight: 500;
  position: relative;
}

.single-image-empty::before {
  content: '📷';
  font-size: 2rem;
  margin-right: 1rem;
}

/* Accessibility */
.single-image-with-lightbox a:focus {
  outline: 2px solid var(--secondary-color);
  outline-offset: 2px;
}

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

/* Print Styles */
@media print {
  .single-image-with-lightbox {
    box-shadow: none;
    border: 1px solid #e2e8f0;
  }

  .single-image-with-lightbox::before,
  .single-image-with-lightbox::after {
    display: none;
  }

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

  .single-image-caption {
    color: #374151;
    font-weight: 500;
  }
}

/* Professional Enhancements */
.single-image-with-lightbox {
  position: relative;
}

.single-image-with-lightbox::before {
  content: '';
  position: absolute;
  top: -2px;
  left: -2px;
  right: -2px;
  bottom: -2px;
  background: linear-gradient(
    135deg,
    var(--secondary-color),
    var(--primary-color),
    var(--secondary-color)
  );
  border-radius: 18px;
  z-index: -1;
  opacity: 0;
  transition: opacity 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.single-image-with-lightbox:hover::before {
  opacity: 0.3;
}

/* Professional Caption Styling */
.single-image-caption {
  position: relative;
  padding: 1rem 0;
}

.single-image-caption::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 30px;
  height: 1px;
  background: linear-gradient(
    90deg,
    transparent,
    #cbd5e1,
    transparent
  );
}

/* Enhanced Loading Animation */
.single-image-with-lightbox .lazy-image {
  position: relative;
}

.single-image-with-lightbox .lazy-image::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 40px;
  height: 40px;
  border: 3px solid var(--secondary-color-20);
  border-top: 3px solid var(--secondary-color);
  border-radius: 50%;
  animation: spin 1s linear infinite;
  z-index: 1;
}