/* Doclify Blog - Shared Styles
 * Extends: style.css
 * Purpose: Blog articles and listing pages
 * Constitution: Vanilla CSS, Lighthouse >90, WCAG 2.1 AA
 */

/* Blog Hero */
.blog-hero {
  padding: 10rem 2rem 4rem;
  text-align: center;
  background: radial-gradient(circle at 50% 50%, rgba(255, 107, 53, 0.08) 0%, transparent 50%);
}

.blog-hero h1 {
  font-size: 2.5rem;
  margin-bottom: 1rem;
  background: linear-gradient(135deg, var(--text-primary) 30%, var(--orange-glow));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.blog-hero .subtitle {
  font-size: 1.2rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

/* Blog Grid - Article Cards */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
  gap: 2rem;
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem;
}

.blog-card {
  background: linear-gradient(145deg, var(--dark-card), rgba(21, 21, 21, 0.8));
  border: 1px solid var(--border-color);
  border-radius: 16px;
  overflow: hidden;
  transition: all 0.3s ease;
  display: flex;
  flex-direction: column;
}

.blog-card:hover {
  border-color: var(--orange-primary);
  transform: translateY(-5px);
  box-shadow: 0 10px 40px rgba(255, 107, 53, 0.15);
}

.blog-card-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
  background: linear-gradient(135deg, rgba(255, 107, 53, 0.2), rgba(255, 133, 85, 0.05));
}

.blog-card-content {
  padding: 1.5rem;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.blog-card-meta {
  display: flex;
  gap: 1rem;
  margin-bottom: 1rem;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.blog-card-category {
  background: rgba(255, 107, 53, 0.15);
  color: var(--orange-primary);
  padding: 0.25rem 0.75rem;
  border-radius: 20px;
  font-weight: 500;
}

.blog-card h2 {
  font-size: 1.25rem;
  margin-bottom: 0.75rem;
  color: var(--text-primary);
  line-height: 1.4;
}

.blog-card h2 a {
  color: inherit;
  text-decoration: none;
  transition: color 0.2s ease;
}

.blog-card h2 a:hover {
  color: var(--orange-primary);
}

.blog-card p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.6;
  margin-bottom: 1.5rem;
  flex: 1;
}

.blog-card .read-more {
  color: var(--orange-primary);
  text-decoration: none;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  transition: gap 0.2s ease;
}

.blog-card .read-more:hover {
  gap: 0.75rem;
}

/* Article Page */
.article-header {
  position: static;
  background-color: transparent;
  backdrop-filter: none;
  border-bottom: none;
  z-index: auto;
  padding: 10rem 2rem 3rem;
  text-align: center;
  max-width: 900px;
  margin: 0 auto;
}

.article-header .breadcrumb {
  margin-bottom: 2rem;
}

.article-header .breadcrumb a {
  color: var(--text-muted);
  text-decoration: none;
  transition: color 0.2s;
}

.article-header .breadcrumb a:hover {
  color: var(--orange-primary);
}

.article-header .breadcrumb span {
  color: var(--text-muted);
  margin: 0 0.5rem;
}

.article-meta {
  display: flex;
  justify-content: center;
  gap: 2rem;
  margin-bottom: 2rem;
  flex-wrap: wrap;
}

.article-meta span {
  color: var(--text-muted);
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.article-header h1 {
  font-size: 2.75rem;
  line-height: 1.2;
  margin-bottom: 1.5rem;
  background: linear-gradient(135deg, var(--text-primary) 30%, var(--orange-glow));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.article-header .lead {
  font-size: 1.25rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* Article Content */
.article-content {
  max-width: 800px;
  margin: 0 auto;
  padding: 2rem;
}

.article-content h2 {
  font-size: 1.75rem;
  color: var(--orange-primary);
  margin: 3rem 0 1.5rem;
  padding-top: 1rem;
}

.article-content h3 {
  font-size: 1.35rem;
  color: var(--text-primary);
  margin: 2rem 0 1rem;
}

.article-content p {
  font-size: 1.1rem;
  line-height: 1.8;
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
}

.article-content ul,
.article-content ol {
  margin: 1.5rem 0;
  padding-left: 1.5rem;
}

.article-content li {
  font-size: 1.1rem;
  line-height: 1.8;
  color: var(--text-secondary);
  margin-bottom: 0.75rem;
}

.article-content strong {
  color: var(--text-primary);
  font-weight: 600;
}

.article-content a {
  color: var(--orange-primary);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.article-content a:hover {
  text-decoration: none;
}

/* Blockquote */
.article-content blockquote {
  background: linear-gradient(145deg, var(--dark-card), rgba(21, 21, 21, 0.8));
  border-left: 4px solid var(--orange-primary);
  padding: 1.5rem 2rem;
  margin: 2rem 0;
  border-radius: 0 12px 12px 0;
}

.article-content blockquote p {
  font-style: italic;
  margin-bottom: 0.5rem;
}

.article-content blockquote cite {
  color: var(--text-muted);
  font-size: 0.95rem;
  font-style: normal;
}

/* Info Box / Callout */
.info-box {
  background: linear-gradient(145deg, rgba(255, 107, 53, 0.1), rgba(255, 133, 85, 0.05));
  border: 1px solid rgba(255, 107, 53, 0.3);
  border-radius: 12px;
  padding: 1.5rem 2rem;
  margin: 2rem 0;
}

.info-box h4 {
  color: var(--orange-primary);
  margin-bottom: 0.75rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.info-box p {
  margin-bottom: 0;
  font-size: 1rem;
}

/* Comparison Table */
.article-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 2rem 0;
  background: var(--dark-card);
  border-radius: 12px;
  overflow: hidden;
}

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

.article-content th {
  background: rgba(255, 107, 53, 0.1);
  color: var(--orange-primary);
  font-weight: 600;
}

.article-content tr:last-child td {
  border-bottom: none;
}

/* Article CTA */
.article-cta {
  background: linear-gradient(145deg, var(--dark-card), rgba(21, 21, 21, 0.8));
  border: 1px solid var(--border-color);
  border-radius: 20px;
  padding: 3rem;
  margin: 4rem 0 2rem;
  text-align: center;
}

.article-cta h3 {
  font-size: 1.5rem;
  color: var(--text-primary);
  margin-bottom: 1rem;
}

.article-cta p {
  color: var(--text-secondary);
  margin-bottom: 2rem;
  font-size: 1.1rem;
}

/* Related Articles */
.related-articles {
  padding: 4rem 2rem;
  background: linear-gradient(180deg, transparent, rgba(255, 107, 53, 0.03));
}

.related-articles h2 {
  text-align: center;
  font-size: 1.75rem;
  margin-bottom: 2rem;
  color: var(--text-primary);
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  max-width: 1000px;
  margin: 0 auto;
}

/* Reading Progress Bar */
.reading-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 0%;
  height: 3px;
  background: linear-gradient(90deg, var(--orange-primary), var(--orange-glow));
  z-index: 9999;
  transition: width 0.1s ease;
}

/* Share Buttons */
.share-buttons {
  display: flex;
  gap: 1rem;
  justify-content: center;
  margin: 2rem 0;
}

.share-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.25rem;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 500;
  transition: all 0.2s ease;
}

.share-btn.linkedin {
  background: #0077B5;
  color: white;
}

.share-btn.twitter {
  background: #1DA1F2;
  color: white;
}

.share-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.3);
}

/* Responsive */
@media (max-width: 768px) {
  .blog-hero h1 {
    font-size: 2rem;
  }

  .blog-grid {
    grid-template-columns: 1fr;
    padding: 1rem;
  }

  .article-header h1 {
    font-size: 2rem;
  }

  .article-content {
    padding: 1rem;
  }

  .article-content h2 {
    font-size: 1.5rem;
  }

  .article-meta {
    flex-direction: column;
    gap: 0.5rem;
  }
}