/* Reading Mode Styles - Chrome Reader Mode Inspired */

.reading-mode-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--bg-primary);
  z-index: 1000;
  overflow-y: auto;
  transition: opacity var(--transition-normal), visibility var(--transition-normal);
}

.reading-mode-overlay.hidden {
  opacity: 0;
  visibility: hidden;
}

.reading-mode-overlay:not(.hidden) {
  opacity: 1;
  visibility: visible;
}

.reading-mode-header {
  position: sticky;
  top: 0;
  background: var(--bg-primary);
  border-bottom: 1px solid var(--border-color);
  padding: var(--spacing-md) var(--spacing-lg);
  display: flex;
  justify-content: space-between;
  align-items: center;
  backdrop-filter: blur(10px);
  z-index: 1001;
}

.reading-mode-header h2 {
  font-size: var(--font-size-xl);
  font-weight: 600;
  color: var(--text-primary);
  margin: 0;
}

.close-reading-mode {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: var(--font-size-xl);
  color: var(--text-primary);
  transition: all var(--transition-fast);
}

.close-reading-mode:hover {
  background: var(--bg-tertiary);
  transform: scale(1.05);
}

.reading-content {
  max-width: 800px;
  margin: 0 auto;
  padding: var(--spacing-2xl) var(--spacing-lg);
  font-family: 'Georgia', 'Times New Roman', serif;
  line-height: 1.8;
  color: var(--text-primary);
}

/* Reading Mode Typography */
.reading-content h1 {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: var(--spacing-lg);
  color: var(--text-primary);
  text-align: center;
  border-bottom: 2px solid var(--accent-primary);
  padding-bottom: var(--spacing-md);
}

.reading-content h2 {
  font-size: 2rem;
  font-weight: 600;
  margin: var(--spacing-2xl) 0 var(--spacing-lg) 0;
  color: var(--text-primary);
  position: relative;
}

.reading-content h2::before {
  content: '';
  position: absolute;
  left: -var(--spacing-lg);
  top: 50%;
  transform: translateY(-50%);
  width: 4px;
  height: 2rem;
  background: var(--accent-primary);
  border-radius: 2px;
}

.reading-content h3 {
  font-size: 1.5rem;
  font-weight: 600;
  margin: var(--spacing-xl) 0 var(--spacing-md) 0;
  color: var(--text-primary);
}

.reading-content h4 {
  font-size: 1.25rem;
  font-weight: 600;
  margin: var(--spacing-lg) 0 var(--spacing-sm) 0;
  color: var(--text-primary);
}

.reading-content p {
  margin-bottom: var(--spacing-lg);
  font-size: 1.125rem;
  text-align: justify;
  text-indent: 1.5rem;
  line-height: 1.8;
}

.reading-content p:first-of-type {
  text-indent: 0;
  font-size: 1.25rem;
  font-weight: 500;
  color: var(--text-secondary);
}

.reading-content ul,
.reading-content ol {
  margin: var(--spacing-lg) 0;
  padding-left: var(--spacing-xl);
}

.reading-content li {
  margin-bottom: var(--spacing-sm);
  font-size: 1.125rem;
}

.reading-content blockquote {
  border-left: 4px solid var(--accent-primary);
  padding-left: var(--spacing-lg);
  margin: var(--spacing-xl) 0;
  font-style: italic;
  color: var(--text-secondary);
  background: var(--bg-secondary);
  padding: var(--spacing-lg);
  border-radius: var(--radius-md);
}

.reading-content code {
  background: var(--bg-secondary);
  padding: 0.25rem 0.5rem;
  border-radius: var(--radius-sm);
  font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
  font-size: 0.9rem;
  color: var(--accent-primary);
}

.reading-content pre {
  background: var(--bg-secondary);
  padding: var(--spacing-lg);
  border-radius: var(--radius-md);
  overflow-x: auto;
  margin: var(--spacing-lg) 0;
  border: 1px solid var(--border-color);
}

.reading-content pre code {
  background: none;
  padding: 0;
  color: var(--text-primary);
}

/* Links in reading mode */
.reading-content a {
  color: var(--accent-primary);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: all var(--transition-fast);
  position: relative;
  display: inline-block;
}

.reading-content a:hover {
  border-bottom-color: var(--accent-primary);
  color: var(--accent-secondary);
  transform: translateY(-1px);
}

.reading-content a:visited {
  color: var(--accent-secondary);
}

/* External link icons in reading mode */
.reading-content a[target="_blank"]:after {
  content: "↗";
  font-size: 0.8em;
  margin-left: 0.25em;
  opacity: 0.7;
  transition: opacity var(--transition-fast);
}

.reading-content a[target="_blank"]:hover:after {
  opacity: 1;
}

/* Reference links styling */
.reading-content .reference-link {
  display: inline-block;
  background: var(--bg-secondary);
  color: var(--accent-primary);
  padding: 0.25rem 0.5rem;
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  font-weight: 500;
  margin-left: 0.25rem;
  text-decoration: none;
  transition: all var(--transition-fast);
}

.reading-content .reference-link:hover {
  background: var(--accent-primary);
  color: var(--bg-primary);
  transform: translateY(-1px);
}

/* Image styling in reading mode */
.reading-content img {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-md);
  margin: var(--spacing-lg) auto;
  display: block;
  box-shadow: 0 4px 8px var(--shadow);
}

/* Image captions */
.reading-content .image-caption {
  text-align: center;
  font-size: var(--font-size-sm);
  color: var(--text-muted);
  margin-top: var(--spacing-sm);
  font-style: italic;
}

/* Abstract section styling */
.reading-content .abstract {
  background: var(--bg-secondary);
  padding: var(--spacing-lg);
  border-radius: var(--radius-md);
  border-left: 4px solid var(--accent-primary);
  margin: var(--spacing-lg) 0;
  font-style: italic;
}

/* Tags styling in reading mode */
.reading-content .post-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
  margin: var(--spacing-lg) 0;
  justify-content: center;
}

.reading-content .tag {
  background: var(--accent-primary);
  color: var(--bg-primary);
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--radius-sm);
  font-size: var(--font-size-xs);
  font-weight: 600;
}

/* Meta information */
.reading-content .post-meta {
  text-align: center;
  color: var(--text-muted);
  font-size: var(--font-size-sm);
  margin-bottom: var(--spacing-lg);
  padding-bottom: var(--spacing-md);
  border-bottom: 1px solid var(--border-color);
}

/* Responsive adjustments for reading mode */
@media (max-width: 768px) {
  .reading-content {
    padding: var(--spacing-lg) var(--spacing-md);
  }
  
  .reading-content h1 {
    font-size: 2rem;
  }
  
  .reading-content h2 {
    font-size: 1.75rem;
  }
  
  .reading-content h2::before {
    left: -var(--spacing-md);
  }
  
  .reading-content p {
    font-size: 1rem;
    text-indent: 1rem;
  }
  
  .reading-content h2::before {
    display: none;
  }
}

/* Print styles for reading mode */
@media print {
  .reading-mode-header {
    display: none;
  }
  
  .reading-content {
    max-width: none;
    padding: 0;
  }
  
  .reading-content h1,
  .reading-content h2,
  .reading-content h3 {
    page-break-after: avoid;
  }
  
  .reading-content p {
    orphans: 3;
    widows: 3;
  }
}

/* Dark theme adjustments for reading mode */
[data-theme="dark"] .reading-content {
  color: #e0e0e0;
}

[data-theme="dark"] .reading-content h1,
[data-theme="dark"] .reading-content h2,
[data-theme="dark"] .reading-content h3,
[data-theme="dark"] .reading-content h4 {
  color: #ffffff;
}

[data-theme="dark"] .reading-content blockquote {
  background: #2d2d2d;
  border-left-color: var(--accent-primary);
}

[data-theme="dark"] .reading-content code {
  background: #2d2d2d;
  color: var(--accent-primary);
}

[data-theme="dark"] .reading-content pre {
  background: #2d2d2d;
  border-color: #404040;
}

[data-theme="dark"] .reading-content .reference-link {
  background: #2d2d2d;
  color: var(--accent-primary);
}

[data-theme="dark"] .reading-content .reference-link:hover {
  background: var(--accent-primary);
  color: #000000;
}

/* Google Translate in Reading Mode */
.reading-mode-overlay .goog-te-gadget {
  font-family: var(--font-family) !important;
  font-size: var(--font-size-sm) !important;
}

.reading-mode-overlay .goog-te-gadget-simple {
  background: var(--bg-secondary) !important;
  border: 1px solid var(--border-color) !important;
  border-radius: var(--radius-md) !important;
  padding: var(--spacing-sm) var(--spacing-md) !important;
  color: var(--text-primary) !important;
  transition: all var(--transition-fast) !important;
  cursor: pointer !important;
  display: inline-block !important;
  text-decoration: none !important;
  font-size: var(--font-size-sm) !important;
  line-height: 1.4 !important;
}

.reading-mode-overlay .goog-te-gadget-simple:hover {
  background: var(--bg-tertiary) !important;
  border-color: var(--accent-primary) !important;
  transform: translateY(-1px) !important;
  box-shadow: 0 2px 8px var(--shadow) !important;
}

.reading-mode-overlay .goog-te-menu2 {
  background: var(--bg-primary) !important;
  border: 1px solid var(--border-color) !important;
  border-radius: var(--radius-lg) !important;
  box-shadow: 0 8px 24px var(--shadow) !important;
  max-height: 300px !important;
  overflow-y: auto !important;
  z-index: 1001 !important;
  min-width: 250px !important;
  width: auto !important;
  max-width: 400px !important;
}