/* Blog Article — Mobile-First Responsive Overrides */

/* Force all content to stay inside viewport */
html, body {
  overflow-x: hidden;
}

/* Article hero */
.article-hero {
  padding: 100px 20px 40px;
  border-bottom: 1px solid var(--border);
  background: linear-gradient(180deg, var(--bg) 0%, var(--surface) 100%);
}
.article-hero-inner {
  max-width: 760px;
  margin: 0 auto;
}
.article-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 20px;
  font-size: 13px;
  color: var(--text-3);
}
.article-meta span {
  display: flex;
  align-items: center;
  gap: 5px;
}
.article-tags {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 20px;
}
.article-tag {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 4px 10px;
  border-radius: 999px;
}
.tag-security { background: rgba(239,68,68,0.1); color: #ef4444; border: 1px solid rgba(239,68,68,0.25); }
.tag-research { background: rgba(139,92,246,0.1); color: #8b5cf6; border: 1px solid rgba(139,92,246,0.25); }
.tag-guide { background: rgba(16,185,129,0.1); color: #10b981; border: 1px solid rgba(16,185,129,0.25); }
.tag-product { background: rgba(251,191,36,0.1); color: #fbbf24; border: 1px solid rgba(251,191,36,0.25); }
.tag-compliance { background: rgba(6,182,212,0.1); color: #06b6d4; border: 1px solid rgba(6,182,212,0.25); }
.article-title {
  font-size: clamp(1.75rem, 5vw, 3rem);
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1.15;
  margin-bottom: 20px;
  word-wrap: break-word;
  overflow-wrap: break-word;
}
.article-subtitle {
  font-size: 1.05rem;
  color: var(--text-2);
  line-height: 1.6;
  margin-bottom: 24px;
}
.article-author {
  display: flex;
  align-items: center;
  gap: 12px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
}
.article-author-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: linear-gradient(135deg, #6366f1, #8b5cf6);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 700;
  font-size: 15px;
  flex-shrink: 0;
}
.article-author-info h4 {
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 2px;
}
.article-author-info p {
  font-size: 12px;
  color: var(--text-3);
}

/* Article body — single column on mobile, sidebar on desktop */
.article-body {
  max-width: 1200px;
  margin: 0 auto;
  padding: 32px 20px 80px;
}

/* Table of contents — collapsed on mobile */
.article-toc {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 20px;
  margin-bottom: 32px;
}
.article-toc h3 {
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-3);
  margin-bottom: 14px;
}
.article-toc ul {
  list-style: none;
  padding: 0;
  margin: 0;
}
.article-toc li {
  margin-bottom: 8px;
}
.article-toc a {
  font-size: 13px;
  color: var(--text-2);
  text-decoration: none;
  transition: color 0.2s;
  display: block;
  padding: 4px 0;
}
.article-toc a:hover {
  color: var(--primary);
}

/* Article content — the actual text */
.article-content {
  color: var(--text-2);
  font-size: 16px;
  line-height: 1.75;
  max-width: 100%;
  overflow-wrap: break-word;
  word-wrap: break-word;
}
.article-content h2 {
  font-size: clamp(1.35rem, 3vw, 1.75rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--text);
  margin-top: 40px;
  margin-bottom: 18px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border);
  word-wrap: break-word;
  overflow-wrap: break-word;
}
.article-content h3 {
  font-size: clamp(1.1rem, 2.5vw, 1.375rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--text);
  margin-top: 32px;
  margin-bottom: 14px;
  word-wrap: break-word;
  overflow-wrap: break-word;
}
.article-content p {
  margin-bottom: 18px;
  overflow-wrap: break-word;
  word-wrap: break-word;
}
.article-content ul, .article-content ol {
  margin-bottom: 18px;
  padding-left: 20px;
}
.article-content li {
  margin-bottom: 8px;
  color: var(--text-2);
}
.article-content a {
  color: var(--primary);
  text-decoration: underline;
  text-decoration-color: rgba(99,102,241,0.3);
  transition: text-decoration-color 0.2s;
  word-break: break-all;
}
.article-content a:hover {
  text-decoration-color: var(--primary);
}
/* Ensure buttons inside article content keep their own styling */
.article-content .btn-hero-primary,
.article-content .btn-hero-secondary,
.article-cta .btn-hero-primary {
  color: #fff !important;
  text-decoration: none !important;
  word-break: normal;
}
.article-content strong {
  color: var(--text);
  font-weight: 600;
}

/* Inline code */
.article-content code {
  font-family: 'SF Mono', 'Fira Code', monospace;
  font-size: 13px;
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 2px 5px;
  border-radius: 4px;
  color: var(--primary);
  word-break: break-all;
  overflow-wrap: break-word;
}

/* Code blocks — CRITICAL: must not overflow on mobile */
.article-content pre {
  background: #0a0a14;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  margin-bottom: 24px;
  max-width: 100%;
}
.article-content pre code {
  background: none;
  border: none;
  padding: 0;
  color: #a5b4fc;
  font-size: 13px;
  line-height: 1.6;
  white-space: pre-wrap;
  word-break: break-word;
  overflow-wrap: break-word;
}

/* Callout boxes */
.callout {
  background: var(--surface);
  border-left: 3px solid var(--primary);
  border-radius: var(--radius);
  padding: 16px 18px;
  margin: 24px 0;
  overflow-wrap: break-word;
  word-wrap: break-word;
}
.callout-icon {
  display: flex;
  align-items: flex-start;
  gap: 12px;
}
.callout-icon i {
  font-size: 20px;
  color: var(--primary);
  flex-shrink: 0;
  margin-top: 2px;
}
.callout-content h4 {
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 6px;
}
.callout-content p {
  margin-bottom: 0;
  font-size: 14px;
}
.callout.warning { border-left-color: var(--warning); }
.callout.warning i { color: var(--warning); }
.callout.success { border-left-color: var(--success); }
.callout.success i { color: var(--success); }

/* Related posts */
.related-posts {
  max-width: 1200px;
  margin: 0 auto;
  padding: 48px 20px 60px;
  border-top: 1px solid var(--border);
}
.related-posts h2 {
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  margin-bottom: 24px;
}
.related-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

/* CTA section */
.article-cta {
  text-align: center;
  padding: 48px 20px;
  background: var(--surface);
  border-top: 1px solid var(--border);
}
.article-cta h2 {
  font-size: clamp(1.35rem, 3vw, 1.75rem);
  font-weight: 700;
  margin-bottom: 14px;
}
.article-cta p {
  color: var(--text-2);
  max-width: 500px;
  margin: 0 auto 20px;
  font-size: 15px;
}

/* Related post card */
.related-card {
  display: block;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 20px;
  text-decoration: none;
  transition: border-color 0.2s;
}
.related-card:hover {
  border-color: var(--primary);
  text-decoration: none;
}
.related-card h3 {
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 8px;
  line-height: 1.4;
}
.related-card p {
  font-size: 13px;
  color: var(--text-3);
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* ===== DESKTOP (768px+) ===== */
@media (min-width: 768px) {
  .article-hero {
    padding: 100px 24px 48px;
  }
  .article-subtitle {
    font-size: 1.125rem;
  }
  .article-body {
    display: grid;
    grid-template-columns: 200px 1fr;
    gap: 40px;
    padding: 48px 24px 80px;
  }
  .article-toc {
    position: sticky;
    top: 80px;
    align-self: start;
    max-height: calc(100vh - 120px);
    overflow-y: auto;
    margin-bottom: 0;
  }
  .article-content pre code {
    font-size: 14px;
  }
  .related-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
  }
  .related-posts {
    padding: 60px 24px 80px;
  }
  .article-cta {
    padding: 60px 24px;
  }
}

/* ===== LARGE DESKTOP (1024px+) ===== */
@media (min-width: 1024px) {
  .article-body {
    grid-template-columns: 220px minmax(0, 720px) 1fr;
  }
}