/* Blog Pages Styling - Leveraging Pico CSS */

/* Blog List Page */
.blog-list-section {
  padding: 2rem 0;
  min-height: 70vh;
}

.blog-list-section .container {
  max-width: 1500px;
}

.blog-header {
  text-align: center;
  margin-bottom: 2rem;
}

.blog-header h1 {
  font-size: 2.5rem;
  margin-bottom: 1rem;
  color: var(--color-primary);
}

.blog-description {
  max-width: 800px;
  margin: 0 auto;
  color: var(--color-text-secondary);
  font-size: 1.1rem;
  line-height: 1.6;
}

/* Blog description list styling */
.blog-description ul {
  text-align: left;
  margin: 1.5rem 0;
  padding-left: 0;
  list-style: none;
}

.blog-description ul li {
  position: relative;
  padding-left: 2rem;
  margin-bottom: 0.75rem;
  line-height: 1.6;
}

.blog-description ul li::before {
  content: "•";
  position: absolute;
  left: 0.5rem;
  color: var(--primary);
  font-weight: bold;
  font-size: 1.2rem;
}

.blog-description ul li strong {
  color: var(--color);
  font-weight: 600;
}

/* Blog Post Cards */
.blog-posts {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
  gap: 1.5rem;
  margin-bottom: 2rem;
}

.blog-post-card {
  background: var(--card-background-color);
  border-radius: var(--border-radius);
  box-shadow: var(--card-box-shadow);
  overflow: hidden;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.blog-post-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
}

.post-image {
  width: 100%;
  height: 140px;
  overflow: hidden;
}

.post-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}

.blog-post-card:hover .post-image img {
  transform: scale(1.05);
}

.post-content {
  padding: 0.5rem;
}

.post-header h2 {
  margin: 0 0 0.25rem 0;
  font-size: 1.2rem;
  line-height: 1.2;
}

.post-header h2 a {
  color: var(--color-primary);
  text-decoration: none;
}

.post-header h2 a:hover {
  color: var(--color-primary-hover);
  text-decoration: underline;
}


.post-meta-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 0.5rem;
}

.meta-info {
  display: flex;
  gap: 0.5rem;
  font-size: 0.8rem;
  color: var(--color-text-secondary);
  align-items: center;
}

.separator {
  color: var(--color-text-secondary);
}

.meta-info time,
.meta-info .reading-time {
  display: flex;
  align-items: center;
}

.post-summary {
  color: var(--color-text);
  line-height: 1.5;
  margin-bottom: 0.5rem;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.post-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-bottom: 0.75rem;
}

.tag {
  background: var(--primary-light);
  color: var(--color-primary);
  padding: 0.2rem 0.4rem;
  border-radius: var(--border-radius);
  font-size: 0.75rem;
  text-decoration: none;
  transition: background-color 0.2s ease;
}

.tag:hover {
  background: var(--color-primary);
  color: white;
}


.read-more-btn {
  color: var(--color-primary);
  text-decoration: none;
  font-weight: 500;
  padding: 0.3rem 0.6rem;
  border: 1px solid var(--color-primary);
  border-radius: var(--border-radius);
  transition: all 0.2s ease;
  font-size: 0.8rem;
  display: inline-block;
}

.read-more-btn:hover {
  background: var(--color-primary);
  color: white;
}

/* Pagination */
.pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 1rem;
  margin: 3rem 0;
}

.pagination-numbers {
  display: flex;
  gap: 0.5rem;
}

.pagination-prev,
.pagination-next,
.pagination-number,
.pagination-current {
  padding: 0.5rem 0.75rem;
  border-radius: var(--border-radius);
  text-decoration: none;
  font-weight: 500;
  transition: all 0.2s ease;
}

.pagination-prev,
.pagination-next,
.pagination-number {
  color: var(--color-primary);
  border: 1px solid var(--color-primary);
}

.pagination-prev:hover,
.pagination-next:hover,
.pagination-number:hover {
  background: var(--color-primary);
  color: white;
}

.pagination-current {
  background: var(--color-primary);
  color: white;
  border: 1px solid var(--color-primary);
}

/* No Posts State */
.no-posts {
  text-align: center;
  padding: 4rem 2rem;
  color: var(--color-text-secondary);
}

.no-posts h2 {
  color: var(--color-text);
  margin-bottom: 1rem;
}

/* Single Blog Post */
.blog-post {
  max-width: 1500px;
  margin: 0 auto;
  padding: 2rem 1rem;
}

.post-hero {
  width: 100%;
  height: 400px;
  overflow: hidden;
  border-radius: var(--border-radius);
  margin-bottom: 2rem;
}

.hero-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.post-container {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 1.5rem;
  align-items: start;
  padding: 0 1rem;
}

/* Table of Contents */
.post-toc {
  position: sticky;
  top: 2rem;
  height: fit-content;
  padding: 0.5rem 0;
}

.toc-nav h2 {
  font-size: 0.9rem;
  margin: 0 0 1rem 0;
  color: var(--color-text-secondary);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.toc-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--color-primary);
  float: right;
  margin-top: -2rem;
}

.toc-content ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.toc-content li {
  margin: 0.5rem 0;
  position: relative;
}

.toc-content ul ul {
  padding-left: 0.75rem;
  margin-top: 0.25rem;
}

.toc-content ul ul li {
  margin: 0.25rem 0;
}

.toc-content ul ul ul li {
  margin: 0.2rem 0;
}

.toc-content a {
  color: var(--color-text-secondary);
  text-decoration: none;
  font-size: 0.8rem;
  line-height: 1.4;
  transition: color 0.2s ease;
  display: block;
  padding: 0.1rem 0;
}

.toc-content a:hover {
  color: var(--color-primary);
}

.toc-content ul ul a {
  font-size: 0.75rem;
  opacity: 0.8;
}

.toc-content ul ul ul a {
  font-size: 0.7rem;
  opacity: 0.7;
}

.post-main {
  min-width: 0;
  max-width: none;
}

/* Breadcrumb */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 2rem;
  font-size: 0.9rem;
  color: var(--color-text-secondary);
}

.breadcrumb a {
  color: var(--color-primary);
  text-decoration: none;
}

.breadcrumb a:hover {
  text-decoration: underline;
}

/* Post Header */
.post-header {
  margin-bottom: 3rem;
}

.post-header h1 {
  font-size: 2.5rem;
  line-height: 1.2;
  margin: 0 0 1rem 0;
  color: var(--color-primary);
}

.post-subtitle {
  font-size: 1.2rem;
  color: var(--color-text-secondary);
  margin: 0 0 2rem 0;
  line-height: 1.4;
}

/* Enhanced Post Meta */
.post-meta-enhanced {
  background: linear-gradient(135deg, var(--primary-light) 0%, rgba(30, 64, 175, 0.08) 100%);
  border: 1px solid var(--primary-light);
  border-radius: var(--border-radius);
  padding: 1.5rem;
  margin: 0 0 2rem 0;
  position: relative;
}

.post-meta-enhanced::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: var(--color-primary);
  border-radius: var(--border-radius) 0 0 var(--border-radius);
}

.meta-primary {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  margin-bottom: 1rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid rgba(30, 64, 175, 0.15);
}

.meta-secondary {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  align-items: center;
}

.publish-date,
.updated-date,
.post-author,
.reading-time,
.word-count {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text);
}

.publish-date {
  color: var(--color-primary);
  font-weight: 600;
}

.updated-date {
  color: var(--color-success);
  font-style: italic;
}

.date-icon,
.update-icon,
.author-icon,
.time-icon,
.word-icon {
  font-size: 1rem;
  opacity: 0.8;
}

/* Enhanced Tags */
.post-tags-enhanced {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin: 0 0 2rem 0;
}

.post-tags-enhanced:empty {
  display: none;
}

.tag-enhanced {
  background: linear-gradient(135deg, var(--color-primary) 0%, rgba(30, 64, 175, 0.8) 100%);
  color: white;
  padding: 0.5rem 1rem;
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: 500;
  text-decoration: none;
  transition: all 0.2s ease;
  box-shadow: 0 2px 8px rgba(30, 64, 175, 0.2);
}

.tag-enhanced:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(30, 64, 175, 0.3);
  color: white;
}

.tag-enhanced:empty {
  display: none;
}

.meta-group {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

/* Post Content */
.post-content {
  line-height: 1.7;
  margin-bottom: 3rem;
  max-width: none;
}

.post-content h2,
.post-content h3,
.post-content h4 {
  margin: 2rem 0 1rem 0;
  color: var(--color-primary);
}

.post-content h2 {
  font-size: 1.8rem;
  border-bottom: 2px solid var(--primary-light);
  padding-bottom: 0.5rem;
}

.post-content h3 {
  font-size: 1.4rem;
}

.post-content h4 {
  font-size: 1.2rem;
}

/* Code blocks */
.post-content pre {
  background: var(--code-background-color);
  border-radius: var(--border-radius);
  padding: 1rem;
  overflow-x: auto;
  margin: 1.5rem 0;
}

.post-content code {
  background: var(--code-background-color);
  padding: 0.2rem 0.4rem;
  border-radius: var(--border-radius);
  font-size: 0.9rem;
}

.post-content pre code {
  background: none;
  padding: 0;
}

/* Tables */
.post-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5rem 0;
  background: var(--card-background-color);
  border-radius: var(--border-radius);
  overflow: hidden;
  box-shadow: var(--card-box-shadow);
}

.post-content th,
.post-content td {
  padding: 0.75rem 1rem;
  text-align: left;
  border-bottom: 1px solid var(--border-color);
}

.post-content th {
  background: var(--primary-light);
  color: var(--color-primary);
  font-weight: 600;
}

/* Post Footer */
.post-footer {
  border-top: 2px solid var(--border-color);
  padding-top: 2rem;
  margin-top: 3rem;
}

.post-categories {
  margin-bottom: 2rem;
}

.post-categories h3 {
  margin: 0 0 1rem 0;
  font-size: 1.1rem;
  color: var(--color-primary);
}

.category {
  background: var(--color-success);
  color: white;
  padding: 0.3rem 0.6rem;
  border-radius: var(--border-radius);
  text-decoration: none;
  font-size: 0.9rem;
  margin-right: 0.5rem;
  transition: opacity 0.2s ease;
}

.category:hover {
  opacity: 0.8;
}

/* Social Sharing */
.social-sharing {
  margin-bottom: 2rem;
}

.social-sharing h3 {
  margin: 0 0 1rem 0;
  font-size: 1.1rem;
  color: var(--color-primary);
}

.share-buttons {
  display: flex;
  gap: 1rem;
}

.share-buttons a {
  padding: 0.5rem 1rem;
  border-radius: var(--border-radius);
  text-decoration: none;
  font-weight: 500;
  transition: all 0.2s ease;
}

.share-twitter {
  background: #1da1f2;
  color: white;
}

.share-linkedin {
  background: #0077b5;
  color: white;
}

.share-email {
  background: var(--color-text-secondary);
  color: white;
}

.share-buttons a:hover {
  opacity: 0.8;
  transform: translateY(-1px);
}

/* Bottom Navigation */
.bottom-navigation {
  background: var(--muted-background-color);
  padding: 3rem 0;
  margin-top: 2rem;
  border-top: 1px solid var(--border-color);
}

.post-navigation {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  max-width: 1500px;
  margin: 0 auto;
}

.nav-prev,
.nav-next {
  display: block;
  background: var(--card-background-color);
  border-radius: var(--border-radius);
  text-decoration: none;
  color: var(--color-text);
  transition: all 0.3s ease;
  box-shadow: var(--card-box-shadow);
  border: 1px solid var(--border-color);
  overflow: hidden;
  position: relative;
}

.nav-prev:hover,
.nav-next:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
  border-color: var(--color-primary);
}

.nav-prev::before,
.nav-next::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: var(--color-primary);
  transform: scaleX(0);
  transition: transform 0.3s ease;
}

.nav-prev:hover::before,
.nav-next:hover::before {
  transform: scaleX(1);
}

.nav-next {
  text-align: right;
}

.nav-content {
  padding: 2rem;
}

.nav-label {
  display: block;
  font-size: 0.9rem;
  color: var(--color-primary);
  font-weight: 600;
  margin-bottom: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.nav-title {
  display: block;
  font-weight: 700;
  font-size: 1.1rem;
  line-height: 1.3;
  margin-bottom: 0.5rem;
  color: var(--color-text);
}

.nav-subtitle {
  display: block;
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  line-height: 1.4;
  margin-top: 0.5rem;
}

/* Related Posts */
.related-posts {
  background: var(--muted-background-color);
  padding: 3rem 0;
  margin-top: 3rem;
}

.related-posts h2 {
  text-align: center;
  margin-bottom: 2rem;
  color: var(--color-primary);
}

.related-posts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.related-post {
  background: var(--card-background-color);
  border-radius: var(--border-radius);
  box-shadow: var(--card-box-shadow);
  transition: transform 0.2s ease;
  overflow: hidden;
}

.related-post:hover {
  transform: translateY(-2px);
}

.related-post-image {
  width: 100%;
  height: 150px;
  overflow: hidden;
}

.related-post-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}

.related-post:hover .related-post-image img {
  transform: scale(1.05);
}

.related-post-content {
  padding: 1.5rem;
}

.related-post h3 {
  margin: 0 0 0.5rem 0;
  font-size: 1.1rem;
  line-height: 1.3;
}

.related-post h3 a {
  color: var(--color-primary);
  text-decoration: none;
}

.related-post h3 a:hover {
  text-decoration: underline;
}

.related-post time {
  color: var(--color-text-secondary);
  font-size: 0.9rem;
  display: block;
  margin-bottom: 0.75rem;
}

.related-post-tags {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.related-post-tags .tag {
  background: var(--primary-light);
  color: var(--color-primary);
  padding: 0.2rem 0.4rem;
  border-radius: var(--border-radius);
  font-size: 0.75rem;
  font-weight: 500;
}

/* Responsive Design */
@media (min-width: 1200px) {
  .blog-posts {
    grid-template-columns: repeat(auto-fit, minmax(450px, 1fr));
  }
}

@media (max-width: 1024px) {
  .blog-posts {
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 1rem;
  }
  
  .post-container {
    grid-template-columns: 240px 1fr;
    gap: 1rem;
    padding: 0 0.5rem;
  }
  
  .post-toc {
    padding: 0.25rem 0;
  }
  
  .toc-nav h2 {
    font-size: 0.85rem;
  }
  
  .bottom-navigation {
    padding: 2rem 0;
  }
  
  .post-navigation {
    gap: 1.5rem;
  }
}

@media (max-width: 768px) {
  .blog-header h1 {
    font-size: 2rem;
  }
  
  .blog-posts {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
  
  .post-content {
    padding: 0.75rem;
  }
  
  .post-meta-row {
    flex-wrap: wrap;
    gap: 0.5rem;
  }
  
  .meta-info {
    flex-wrap: wrap;
    gap: 0.5rem;
  }
  
  .post-meta-enhanced {
    padding: 1rem;
  }
  
  .meta-primary,
  .meta-secondary {
    flex-direction: column;
    gap: 0.75rem;
    align-items: flex-start;
  }
  
  .meta-primary {
    margin-bottom: 0.75rem;
    padding-bottom: 0.75rem;
  }
  
  .post-tags-enhanced {
    gap: 0.5rem;
  }
  
  .tag-enhanced {
    padding: 0.4rem 0.8rem;
    font-size: 0.8rem;
  }
  
  .post-container {
    grid-template-columns: 1fr;
    gap: 2rem;
    max-width: none;
  }
  
  .post-toc {
    position: static;
    order: -1;
    padding: 1rem 0;
    margin: 0 0 1.5rem 0;
    border-bottom: 1px solid var(--border-color);
  }
  
  .toc-nav h2 {
    font-size: 0.9rem;
    margin-bottom: 0.75rem;
  }
  
  .post-navigation {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
  
  .nav-next {
    text-align: left;
  }
  
  .nav-content {
    padding: 1.5rem;
  }
  
  .toc-toggle {
    display: block;
  }
  
  .toc-content {
    display: none;
  }
  
  .toc-content.expanded {
    display: block;
  }
  
  .post-header h1 {
    font-size: 2rem;
  }
  
  .post-navigation {
    grid-template-columns: 1fr;
  }
  
  .nav-next {
    text-align: left;
  }
  
  .share-buttons {
    flex-direction: column;
  }
  
  .related-posts-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 576px) {
  .blog-post {
    padding: 1rem 0.5rem;
  }
  
  .post-hero {
    height: 250px;
  }
  
  .post-meta {
    flex-direction: column;
    gap: 0.5rem;
  }
  
  .post-meta-enhanced {
    padding: 0.75rem;
    margin: 0 0 1.5rem 0;
  }
  
  .date-icon,
  .update-icon,
  .author-icon,
  .time-icon,
  .word-icon {
    font-size: 0.9rem;
  }
  
  .publish-date,
  .updated-date,
  .post-author,
  .reading-time,
  .word-count {
    font-size: 0.85rem;
  }
  
  .pagination {
    flex-direction: column;
    gap: 1rem;
  }
  
  .pagination-numbers {
    order: -1;
  }
  
  .bottom-navigation {
    padding: 1.5rem 0;
  }
  
  .nav-content {
    padding: 1rem;
  }
  
  .nav-title {
    font-size: 1rem;
  }
}

/* Reading Progress Bar */
.reading-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: rgba(0, 0, 0, 0.1);
  z-index: 1000;
}

.reading-progress-bar {
  height: 100%;
  background: var(--color-primary);
  width: 0%;
  transition: width 0.1s ease;
}

/* TOC Active State */
.toc-content a.active {
  color: var(--color-primary);
  font-weight: 600;
  position: relative;
}

.toc-content a.active::before {
  content: '';
  position: absolute;
  left: -0.75rem;
  top: 50%;
  transform: translateY(-50%);
  width: 2px;
  height: 1rem;
  background: var(--color-primary);
  border-radius: 1px;
}

/* Heading Copy Link */
.heading-copy-link {
  opacity: 0;
  background: none;
  border: none;
  cursor: pointer;
  margin-left: 0.5rem;
  font-size: 0.8em;
  transition: opacity 0.2s ease;
  vertical-align: middle;
}

h2:hover .heading-copy-link,
h3:hover .heading-copy-link,
h4:hover .heading-copy-link {
  opacity: 1;
}

.heading-copy-link:hover {
  transform: scale(1.1);
}

/* Copy Feedback */
.copy-feedback {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  background: var(--color-primary);
  color: white;
  padding: 0.75rem 1rem;
  border-radius: var(--border-radius);
  font-size: 0.9rem;
  z-index: 1001;
  opacity: 0;
  transform: translateY(20px);
  transition: all 0.3s ease;
}

.copy-feedback.show {
  opacity: 1;
  transform: translateY(0);
}

/* Screen Reader Only */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}