/**
 * Share Preview Modal Styles
 * 공유 미리보기 모달 스타일
 */

/* ==========================================================================
   Modal Overlay
   ========================================================================== */

.share-preview-modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--background);
  backdrop-filter: blur(4px);
  z-index: var(--z-modal);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-4);
  
  /* Animation */
  opacity: 0;
  transition: opacity var(--transition-base);
}

.share-preview-modal.show {
  opacity: 1;
}

/* ==========================================================================
   Modal Content
   ========================================================================== */

.preview-modal-content {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-2xl);
  max-width: 600px;
  width: 100%;
  max-height: 90vh;
  overflow: hidden;
  
  /* Animation */
  transform: scale(0.9) translateY(20px);
  transition: transform var(--transition-base);
}

.share-preview-modal.show .preview-modal-content {
  transform: scale(1) translateY(0);
}

/* ==========================================================================
   Preview Header
   ========================================================================== */

.preview-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4) var(--space-6);
  border-bottom: 1px solid var(--border);
  background: var(--muted);
}

.preview-header h3 {
  font-size: var(--text-lg);
  font-weight: var(--font-semibold);
  font-family: var(--font-sans);
  color: var(--card-foreground);
  margin: 0;
}

.preview-close-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border: none;
  border-radius: var(--radius-full);
  background: transparent;
  color: var(--muted-foreground);
  font-size: var(--text-xl);
  font-weight: var(--font-bold);
  cursor: pointer;
  transition: all var(--transition-base);
}

.preview-close-btn:hover {
  background: var(--accent);
  color: var(--accent-foreground);
}

.preview-close-btn:active {
  transform: scale(0.95);
}

/* ==========================================================================
   Preview Image Container
   ========================================================================== */

.preview-image-container {
  padding: var(--space-6);
  text-align: center;
  background: var(--card);
  min-height: 300px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  font-family: var(--font-sans);
}

.preview-image {
  max-width: 100%;
  max-height: 400px;
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  background: var(--card);
  border: 1px solid var(--border);
  
  /* Loading state */
  opacity: 0;
  animation: fadeInImage 0.5s ease forwards;
}

@keyframes fadeInImage {
  from {
    opacity: 0;
    transform: scale(0.95);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

/* ==========================================================================
   Preview Actions
   ========================================================================== */

.preview-actions {
  display: flex;
  gap: var(--space-3);
  padding: var(--space-4) var(--space-6);
  border-top: 1px solid var(--border);
  background: var(--card);
}

.preview-actions .btn-secondary,
.preview-actions .btn-primary {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-lg);
  font-size: var(--text-sm);
  font-weight: var(--font-semibold);
  transition: all var(--transition-base);
  cursor: pointer;
  
  &:disabled {
    opacity: 0.6;
    cursor: not-allowed;
  }
}

.preview-edit-btn {
  background: var(--secondary);
  border: 1px solid var(--border);
  color: var(--secondary-foreground);
  font-family: var(--font-sans);
  box-shadow: var(--shadow-sm);
}

.preview-edit-btn:hover:not(:disabled) {
  background: var(--accent);
  color: var(--accent-foreground);
  border-color: var(--ring);
  transform: translateY(-1px);
  box-shadow: var(--shadow);
}

.preview-share-btn {
  background: var(--gradient-button);
  border: 1px solid var(--border);
  color: var(--primary-foreground);
  font-family: var(--font-sans);
  box-shadow: var(--shadow-sm);
}

.preview-share-btn:hover:not(:disabled) {
  background: var(--primary);
  border-color: var(--ring);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

/* ==========================================================================
   Responsive Design
   ========================================================================== */

/* Mobile Layout */
@media (max-width: 767px) {
  .share-preview-modal {
    padding: var(--space-2);
  }
  
  .preview-modal-content {
    max-width: none;
    margin: 0;
    border-radius: var(--radius-lg);
  }
  
  .preview-header {
    padding: var(--space-3) var(--space-4);
  }
  
  .preview-header h3 {
    font-size: var(--text-base);
  }
  
  .preview-close-btn {
    width: 28px;
    height: 28px;
    font-size: var(--text-lg);
  }
  
  .preview-image-container {
    padding: var(--space-4);
    min-height: 250px;
  }
  
  .preview-image {
    max-height: 300px;
  }
  
  .preview-actions {
    flex-direction: column;
    padding: var(--space-3) var(--space-4);
    gap: var(--space-2);
  }
  
  .preview-actions .btn-secondary,
  .preview-actions .btn-primary {
    padding: var(--space-3);
  }
}

/* Very Small Screens */
@media (max-width: 360px) {
  .preview-image-container {
    padding: var(--space-3);
    min-height: 200px;
  }
  
  .preview-image {
    max-height: 250px;
  }
  
  .preview-actions {
    padding: var(--space-2) var(--space-3);
  }
}

/* Landscape Mobile */
@media (max-width: 767px) and (orientation: landscape) {
  .preview-modal-content {
    max-height: 95vh;
  }
  
  .preview-image-container {
    min-height: 200px;
    padding: var(--space-3) var(--space-4);
  }
  
  .preview-image {
    max-height: 250px;
  }
  
  .preview-actions {
    flex-direction: row;
  }
}

/* Tablet and Desktop */
@media (min-width: 768px) {
  .preview-modal-content {
    max-width: 700px;
  }
  
  .preview-image-container {
    padding: var(--space-8);
  }
  
  .preview-image {
    max-height: 500px;
  }
}

/* ==========================================================================
   Loading States
   ========================================================================== */

.preview-image-container.loading {
  position: relative;
}

.preview-image-container.loading::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 40px;
  height: 40px;
  margin: -20px 0 0 -20px;
  border: 3px solid var(--muted);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

.preview-image-container.loading::after {
  content: attr(data-loading-text);
  position: absolute;
  top: 60%;
  left: 50%;
  transform: translateX(-50%);
  font-size: var(--text-sm);
  font-family: var(--font-sans);
  color: var(--muted-foreground);
  margin-top: var(--space-4);
}

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

/* ==========================================================================
   Accessibility Enhancements
   ========================================================================== */

/* Focus States */
.preview-close-btn:focus-visible,
.preview-edit-btn:focus-visible,
.preview-share-btn:focus-visible {
  outline: 3px solid var(--ring);
  outline-offset: 2px;
}

/* High Contrast Support */
@media (prefers-contrast: high) {
  .share-preview-modal {
    background: var(--background);
  }
  
  .preview-modal-content {
    border: 2px solid var(--foreground);
  }
  
  .preview-actions .btn-secondary,
  .preview-actions .btn-primary {
    border-width: 2px;
  }
}

/* Reduced Motion Support */
@media (prefers-reduced-motion: reduce) {
  .share-preview-modal,
  .preview-modal-content,
  .preview-image,
  .preview-close-btn,
  .preview-edit-btn,
  .preview-share-btn {
    transition: none;
    animation: none;
  }
  
  .preview-actions .btn-secondary:hover,
  .preview-actions .btn-primary:hover {
    transform: none;
  }
}

/* ==========================================================================
   Touch Device Optimizations
   ========================================================================== */

@media (hover: none) and (pointer: coarse) {
  .preview-close-btn:hover {
    background: transparent;
  }
  
  .preview-edit-btn:hover,
  .preview-share-btn:hover {
    transform: none;
    box-shadow: none;
  }
  
  .preview-close-btn:active,
  .preview-edit-btn:active,
  .preview-share-btn:active {
    transform: scale(0.98);
    transition: transform var(--transition-fast);
  }
}