/* ===========================================
   Blog Design System — ClosedLoop AI
   Dark mode, progress bar, TOC, sharing,
   newsletter, category filters, cards
   =========================================== */

/* --- Missing Tailwind Utilities (not in compiled CSS) --- */
.pt-24 { padding-top: 6rem; }
.gap-1\.5 { gap: 0.375rem; }
.bg-indigo-100 { background-color: #e0e7ff; }
.text-indigo-700 { color: #4338ca; }
.hover\:text-indigo-600:hover { color: #4f46e5; }
@media (min-width: 1024px) { .lg\:hidden { display: none; } }
.py-2\.5 { padding-top: 0.625rem; padding-bottom: 0.625rem; }
.px-2\.5 { padding-left: 0.625rem; padding-right: 0.625rem; }

/* --- Dark Mode Variables --- */
.dark {
  --bg-primary: #0a0a0b;
  --bg-secondary: #111113;
  --bg-elevated: #1a1a1d;
  --bg-card: #16161a;
  --border-dark: #2a2a2e;
  --text-primary-dark: #fafafa;
  --text-secondary-dark: #a0a0a6;
  --text-muted-dark: #6b6b73;
  color-scheme: dark;
}

/* Dark: global overrides */
.dark body,
.dark .min-h-screen { background: var(--bg-primary) !important; }
.dark header { background: var(--bg-primary) !important; border-color: var(--border-dark) !important; }
.dark header span { color: var(--text-primary-dark) !important; }
.dark .nav-link { color: var(--text-secondary-dark) !important; }
.dark .nav-link:hover { background: var(--bg-elevated) !important; color: #fff !important; }
.dark .mega-menu-trigger { color: var(--text-secondary-dark) !important; }
.dark .mega-menu-trigger:hover,
.dark .mega-menu-trigger.active { background: var(--bg-elevated) !important; color: #fff !important; }
.dark .mega-menu-panel { background: var(--bg-secondary) !important; border-color: var(--border-dark) !important; }
.dark .mega-menu-column h3 { color: var(--text-muted-dark) !important; }
.dark .mega-menu-title { color: var(--text-primary-dark) !important; }
.dark .mega-menu-desc { color: var(--text-muted-dark) !important; }
.dark .mega-menu-icon { background: var(--bg-elevated) !important; border-color: var(--border-dark) !important; }
.dark .mega-menu-icon svg { color: var(--text-secondary-dark) !important; }
.dark .mega-menu-item:hover { background: var(--bg-elevated) !important; }
.dark footer { background: var(--bg-primary) !important; }
.dark footer h4 { color: var(--text-muted-dark) !important; }
.dark footer a { color: var(--text-muted-dark) !important; }
.dark footer a:hover { color: var(--text-primary-dark) !important; }
.dark footer p { color: var(--text-muted-dark) !important; }
.dark footer [style*="border-top"] { border-color: var(--border-dark) !important; }
.dark #mobile-menu { background: var(--bg-primary) !important; }
.dark #mobile-menu a { color: var(--text-secondary-dark) !important; }

/* Dark: blog content overrides */
.dark main section { background: var(--bg-primary) !important; }
.dark .blog-hero { background: var(--bg-primary) !important; }
.dark .blog-card {
  background: var(--bg-card) !important;
  border-color: var(--border-dark) !important;
}
.dark .blog-card:hover {
  border-color: #3a3a3e !important;
  background: var(--bg-elevated) !important;
}
.dark .blog-card h3 a { color: var(--text-primary-dark) !important; }
.dark .blog-card h3 a:hover { color: #818cf8 !important; }
.dark .blog-card p { color: var(--text-secondary-dark) !important; }
.dark .blog-card .card-meta { color: var(--text-muted-dark) !important; }
.dark .blog-card .card-badge { background: var(--bg-elevated) !important; color: var(--text-secondary-dark) !important; }
.dark .blog-card [style*="border-top"] { border-color: var(--border-dark) !important; }
.dark .blog-card h3 a:hover,
.dark .blog-featured-card h3 a:hover { color: #818cf8 !important; }
.dark .blog-featured-card { background: linear-gradient(135deg, var(--bg-card), var(--bg-elevated)) !important; }
.dark .blog-featured-card:hover { background: linear-gradient(135deg, var(--bg-elevated), #222225) !important; }

/* Dark: article page */
.dark .blog-article-content h1,
.dark .blog-article-content h2 { color: var(--text-primary-dark) !important; }
.dark .blog-article-content h3 { color: #818cf8 !important; }
.dark .blog-article-content p,
.dark .blog-article-content li { color: var(--text-secondary-dark) !important; }
.dark .blog-article-content strong { color: var(--text-primary-dark) !important; }
.dark .blog-article-content a { color: #818cf8 !important; }
.dark .blog-article-content a:hover { color: #a5b4fc !important; }
.dark .blog-article-content blockquote { background: var(--bg-elevated) !important; border-color: #818cf8 !important; }
.dark .blog-article-content blockquote p { color: var(--text-secondary-dark) !important; }
.dark .blog-breadcrumbs a { color: var(--text-muted-dark) !important; }
.dark .blog-breadcrumbs a:hover { color: var(--text-primary-dark) !important; }
.dark .blog-breadcrumbs span { color: var(--text-muted-dark) !important; }

/* Dark: article header (title, meta, description, tags) */
.dark main h1 { color: var(--text-primary-dark) !important; }
.dark main .text-gray-500 { color: var(--text-muted-dark) !important; }
.dark main .text-gray-600 { color: var(--text-secondary-dark) !important; }
.dark main .bg-gray-100 { background: var(--bg-elevated) !important; }
.dark main .text-gray-600.hover\:bg-gray-200:hover { background: #2a2a2e !important; }
.dark main .bg-gray-300 { background: var(--text-muted-dark) !important; }
.dark .blog-toc { border-color: var(--border-dark) !important; }
.dark .blog-toc a { color: var(--text-muted-dark) !important; }
.dark .blog-toc a:hover { color: var(--text-primary-dark) !important; }
.dark .blog-toc a.active { color: #818cf8 !important; border-color: #818cf8 !important; }
.dark .blog-toc-title { color: var(--text-secondary-dark) !important; }
.dark .blog-sharing-btn { background: var(--bg-elevated) !important; border-color: var(--border-dark) !important; color: var(--text-secondary-dark) !important; }
.dark .blog-sharing-btn:hover { background: #222225 !important; color: var(--text-primary-dark) !important; }
.dark .blog-author { background: var(--bg-card) !important; border-color: var(--border-dark) !important; }
.dark .blog-author-name { color: var(--text-primary-dark) !important; }
.dark .blog-author-role { color: var(--text-muted-dark) !important; }
.dark .blog-author-bio { color: var(--text-secondary-dark) !important; }
.dark .blog-newsletter { background: var(--bg-card) !important; border-color: var(--border-dark) !important; }
.dark .blog-newsletter h3 { color: var(--text-primary-dark) !important; }
.dark .blog-newsletter p { color: var(--text-secondary-dark) !important; }
.dark .blog-newsletter input { background: var(--bg-elevated) !important; border-color: var(--border-dark) !important; color: var(--text-primary-dark) !important; }
.dark .blog-newsletter input::placeholder { color: var(--text-muted-dark) !important; }
.dark .blog-related-title { color: var(--text-primary-dark) !important; }
.dark .blog-related-subtitle { color: var(--text-secondary-dark) !important; }

/* Dark: category filter */
.dark .blog-filter-btn { background: var(--bg-elevated) !important; color: var(--text-secondary-dark) !important; border-color: var(--border-dark) !important; }
.dark .blog-filter-btn:hover { color: var(--text-primary-dark) !important; border-color: #3a3a3e !important; }
.dark .blog-filter-btn.active { background: #fff !important; color: #000 !important; border-color: #fff !important; }

/* Dark: pagination */
.dark .blog-pagination a,
.dark .blog-pagination span { border-color: var(--border-dark) !important; color: var(--text-secondary-dark) !important; }
.dark .blog-pagination a:hover { background: var(--bg-elevated) !important; }
.dark .blog-pagination .active { background: #fff !important; color: #000 !important; }

/* Dark: theme toggle */
.dark .blog-theme-toggle svg.sun-icon { display: block; }
.dark .blog-theme-toggle svg.moon-icon { display: none; }

/* --- Reading Progress Bar --- */
.blog-progress-bar {
  position: fixed;
  top: 56px; /* below header */
  left: 0;
  width: 0%;
  height: 2px;
  background: linear-gradient(90deg, #6366f1, #818cf8);
  z-index: 60;
  transition: width 50ms linear;
}

/* --- Blog Hero --- */
.blog-hero {
  padding: 7rem 1.5rem 2rem;
  text-align: center;
}
.blog-hero-title {
  font-size: 2.75rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: #1d1d1f;
  margin-bottom: 0.75rem;
}
.blog-hero-tagline {
  font-size: 1.125rem;
  color: #6e6e73;
  max-width: 36rem;
  margin: 0 auto 2rem;
  line-height: 1.6;
}
.dark .blog-hero-title { color: var(--text-primary-dark) !important; }
.dark .blog-hero-tagline { color: var(--text-secondary-dark) !important; }

/* --- Category Filter Tabs --- */
.blog-filter {
  display: flex;
  gap: 0.5rem;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 3rem;
}
.blog-filter-btn {
  padding: 0.5rem 1.25rem;
  font-size: 0.875rem;
  font-weight: 500;
  border-radius: 9999px;
  border: 1px solid #e5e5e7;
  background: #fff;
  color: #6e6e73;
  cursor: pointer;
  transition: all 0.2s;
}
.blog-filter-btn:hover {
  color: #1d1d1f;
  border-color: #d2d2d7;
}
.blog-filter-btn.active {
  background: #1d1d1f;
  color: #fff;
  border-color: #1d1d1f;
}

/* --- Blog Card --- */
.blog-card {
  background: #fff;
  border: 1px solid #f0f0f2;
  border-radius: 1rem;
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  transition: all 0.25s ease;
}
.blog-card:hover {
  border-color: #d2d2d7;
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.06);
  transform: translateY(-2px);
}
.blog-card .card-badge {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 500;
  padding: 0.25rem 0.75rem;
  border-radius: 9999px;
  background: #f5f5f7;
  color: #6e6e73;
}
.blog-card .card-badge-integration { background: #ede9fe; color: #7c3aed; }
.blog-card .card-badge-case-study { background: #dcfce7; color: #16a34a; }
.blog-card .card-badge-ai { background: #dbeafe; color: #2563eb; }
.blog-card .card-badge-strategy { background: #fef3c7; color: #d97706; }
.blog-card .card-meta {
  font-size: 0.8125rem;
  color: #86868b;
}
.blog-card h3 a:hover,
.blog-featured-card h3 a:hover {
  color: #4f46e5;
}

/* Featured card */
.blog-featured-card {
  background: linear-gradient(135deg, #fafafa, #f5f5f7);
  border: 1px solid #e5e5e7;
  border-radius: 1.25rem;
  padding: 2rem;
  transition: all 0.25s ease;
}
.blog-featured-card:hover {
  border-color: #d2d2d7;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.08);
}

/* --- Newsletter CTA --- */
.blog-newsletter {
  background: #fafafa;
  border: 1px solid #e5e5e7;
  border-radius: 1rem;
  padding: 2.5rem;
  text-align: center;
}
.blog-newsletter h3 {
  font-size: 1.25rem;
  font-weight: 600;
  color: #1d1d1f;
  margin-bottom: 0.5rem;
}
.blog-newsletter p {
  font-size: 0.9375rem;
  color: #6e6e73;
  margin-bottom: 1.5rem;
}
.blog-newsletter-form {
  display: flex;
  gap: 0.75rem;
  max-width: 28rem;
  margin: 0 auto;
}
.blog-newsletter-form input {
  flex: 1;
  padding: 0.75rem 1rem;
  border: 1px solid #e5e5e7;
  border-radius: 0.5rem;
  font-size: 0.9375rem;
  background: #fff;
  color: #1d1d1f;
  outline: none;
  transition: border-color 0.2s;
}
.blog-newsletter-form input:focus {
  border-color: #6366f1;
}
.blog-newsletter-form button {
  padding: 0.75rem 1.5rem;
  background: #1d1d1f;
  color: #fff;
  border: none;
  border-radius: 0.5rem;
  font-size: 0.9375rem;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.2s;
  white-space: nowrap;
}
.blog-newsletter-form button:hover {
  background: #000;
}
.blog-newsletter-social-proof {
  font-size: 0.8125rem;
  color: #86868b;
  margin-top: 0.75rem;
}
.dark .blog-newsletter-form button { background: #fff !important; color: #000 !important; }
.dark .blog-newsletter-form button:hover { background: #e5e5e7 !important; }

/* --- Article: Breadcrumbs --- */
.blog-breadcrumbs {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8125rem;
  margin-bottom: 1.5rem;
}
.blog-breadcrumbs a {
  color: #86868b;
  text-decoration: none;
  transition: color 0.2s;
}
.blog-breadcrumbs a:hover { color: #1d1d1f; }
.blog-breadcrumbs span { color: #c5c5c7; }

/* --- Article: 3-Column Layout --- */
.blog-article-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  max-width: 72rem;
  margin: 0 auto;
  padding: 0 1.5rem;
  position: relative;
}
@media (min-width: 1024px) {
  .blog-article-layout {
    grid-template-columns: 220px 1fr 60px;
    gap: 2rem;
  }
}

/* --- Article: Table of Contents --- */
.blog-toc {
  display: none;
}
@media (min-width: 1024px) {
  .blog-toc {
    display: block;
    position: sticky;
    top: 5rem;
    align-self: start;
    max-height: calc(100vh - 6rem);
    overflow-y: auto;
    padding-right: 1rem;
  }
}
.blog-toc-title {
  font-size: 0.6875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: #86868b;
  margin-bottom: 1rem;
}
.blog-toc-list {
  list-style: none;
  padding: 0;
  margin: 0;
}
.blog-toc-list li {
  margin-bottom: 0.25rem;
}
.blog-toc-list a {
  display: block;
  font-size: 0.8125rem;
  color: #86868b;
  text-decoration: none;
  padding: 0.25rem 0 0.25rem 0.75rem;
  border-left: 2px solid transparent;
  transition: all 0.2s;
  line-height: 1.4;
}
.blog-toc-list a:hover {
  color: #1d1d1f;
}
.blog-toc-list a.active {
  color: #6366f1;
  border-left-color: #6366f1;
}
.blog-toc-list .toc-h3 {
  padding-left: 1.5rem;
  font-size: 0.75rem;
}

/* Mobile TOC (collapsible) */
.blog-toc-mobile {
  margin-bottom: 2rem;
  border: 1px solid #e5e5e7;
  border-radius: 0.75rem;
  overflow: hidden;
}
.dark .blog-toc-mobile { border-color: var(--border-dark) !important; }
.blog-toc-mobile-toggle {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 0.875rem 1rem;
  background: #fafafa;
  border: none;
  font-size: 0.875rem;
  font-weight: 500;
  color: #1d1d1f;
  cursor: pointer;
}
.dark .blog-toc-mobile-toggle { background: var(--bg-elevated) !important; color: var(--text-primary-dark) !important; }
.blog-toc-mobile-toggle svg {
  width: 1rem;
  height: 1rem;
  transition: transform 0.2s;
}
.blog-toc-mobile-toggle.open svg { transform: rotate(180deg); }
.blog-toc-mobile-content {
  display: none;
  padding: 0.5rem 1rem 1rem;
  background: #fff;
}
.dark .blog-toc-mobile-content { background: var(--bg-card) !important; }
.blog-toc-mobile-content.open { display: block; }
.blog-toc-mobile-content a {
  display: block;
  font-size: 0.8125rem;
  color: #6e6e73;
  text-decoration: none;
  padding: 0.375rem 0;
  transition: color 0.2s;
}
.blog-toc-mobile-content a:hover { color: #1d1d1f; }
.blog-toc-mobile-content .toc-h3 { padding-left: 1rem; }
@media (min-width: 1024px) {
  .blog-toc-mobile { display: none; }
}

/* --- Article: Social Sharing Sidebar --- */
.blog-sharing {
  display: none;
}
@media (min-width: 1024px) {
  .blog-sharing {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    position: sticky;
    top: 5rem;
    align-self: start;
  }
}
.blog-sharing-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 0.5rem;
  border: 1px solid #e5e5e7;
  background: #fff;
  color: #6e6e73;
  cursor: pointer;
  transition: all 0.2s;
  text-decoration: none;
}
.blog-sharing-btn:hover {
  background: #f5f5f7;
  color: #1d1d1f;
  border-color: #d2d2d7;
}
.blog-sharing-btn svg {
  width: 18px;
  height: 18px;
}
.blog-sharing-btn.copied {
  background: #dcfce7 !important;
  border-color: #86efac !important;
  color: #16a34a !important;
}

/* Mobile sharing bar */
.blog-sharing-mobile {
  display: flex;
  gap: 0.75rem;
  justify-content: center;
  padding: 1rem 0;
  margin-bottom: 2rem;
}
@media (min-width: 1024px) {
  .blog-sharing-mobile { display: none; }
}

/* --- Author Bio --- */
.blog-author {
  display: flex;
  align-items: flex-start;
  gap: 1.25rem;
  padding: 2rem;
  background: #fafafa;
  border: 1px solid #e5e5e7;
  border-radius: 1rem;
  margin: 3rem 0;
}
.blog-author-photo {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
}
.blog-author-name {
  font-size: 1rem;
  font-weight: 600;
  color: #1d1d1f;
  margin-bottom: 0.125rem;
}
.blog-author-role {
  font-size: 0.8125rem;
  color: #86868b;
  margin-bottom: 0.5rem;
}
.blog-author-bio {
  font-size: 0.875rem;
  color: #6e6e73;
  line-height: 1.6;
}

/* --- Related Articles --- */
.blog-related-title {
  font-size: 1.5rem;
  font-weight: 600;
  color: #1d1d1f;
  margin-bottom: 0.5rem;
}
.blog-related-subtitle {
  font-size: 0.9375rem;
  color: #6e6e73;
  margin-bottom: 2rem;
}

/* --- Dark Mode Toggle --- */
.blog-theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 0.5rem;
  border: 1px solid #e5e5e7;
  background: #fff;
  cursor: pointer;
  transition: all 0.2s;
  color: #6e6e73;
}
.blog-theme-toggle:hover {
  background: #f5f5f7;
  color: #1d1d1f;
}
.blog-theme-toggle svg { width: 18px; height: 18px; }
.blog-theme-toggle svg.sun-icon { display: none; }
.blog-theme-toggle svg.moon-icon { display: block; }
.dark .blog-theme-toggle { background: var(--bg-elevated) !important; border-color: var(--border-dark) !important; color: var(--text-secondary-dark) !important; }
.dark .blog-theme-toggle:hover { color: var(--text-primary-dark) !important; }

/* --- Scroll Reveal (Blog) --- */
.blog-reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}
.blog-reveal.revealed {
  opacity: 1;
  transform: translateY(0);
}

/* Staggered children */
.blog-reveal-stagger > * {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.4s ease, transform 0.4s ease;
}
.blog-reveal-stagger.revealed > *:nth-child(1) { transition-delay: 0s; }
.blog-reveal-stagger.revealed > *:nth-child(2) { transition-delay: 0.06s; }
.blog-reveal-stagger.revealed > *:nth-child(3) { transition-delay: 0.12s; }
.blog-reveal-stagger.revealed > *:nth-child(4) { transition-delay: 0.18s; }
.blog-reveal-stagger.revealed > *:nth-child(5) { transition-delay: 0.24s; }
.blog-reveal-stagger.revealed > *:nth-child(6) { transition-delay: 0.3s; }
.blog-reveal-stagger.revealed > *:nth-child(7) { transition-delay: 0.36s; }
.blog-reveal-stagger.revealed > *:nth-child(8) { transition-delay: 0.42s; }
.blog-reveal-stagger.revealed > *:nth-child(9) { transition-delay: 0.48s; }
.blog-reveal-stagger.revealed > * { opacity: 1; transform: translateY(0); }

/* --- Key Takeaways Box --- */
.blog-takeaways {
  background: linear-gradient(135deg, #f0f4ff, #eef2ff);
  border: 1px solid #c7d2fe;
  border-radius: 1rem;
  padding: 1.75rem 2rem;
  margin: 2rem 0 2.5rem;
}
.blog-takeaways-header {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8125rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: #4338ca;
  margin-bottom: 1rem;
}
.blog-takeaways-header svg { width: 18px; height: 18px; }
.blog-takeaways-item {
  display: flex;
  align-items: flex-start;
  gap: 0.625rem;
  padding: 0.5rem 0;
  font-size: 0.9375rem;
  line-height: 1.6;
  color: #374151;
}
.blog-takeaways-item svg {
  width: 18px;
  height: 18px;
  color: #4f46e5;
  flex-shrink: 0;
  margin-top: 0.2rem;
}
.dark .blog-takeaways { background: linear-gradient(135deg, #1a1a2e, #16162a) !important; border-color: #312e81 !important; }
.dark .blog-takeaways-header { color: #a5b4fc !important; }
.dark .blog-takeaways-item { color: var(--text-secondary-dark) !important; }
.dark .blog-takeaways-item svg { color: #818cf8 !important; }

/* --- Stat Callout --- */
.blog-stat-callout {
  text-align: center;
  padding: 2.5rem 2rem;
  margin: 2.5rem 0;
  background: #fafafa;
  border-radius: 1rem;
  border: 1px solid #e5e5e7;
}
.blog-stat-number {
  font-size: 3.5rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1;
  background: linear-gradient(135deg, #4f46e5, #7c3aed);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 0.75rem;
}
.blog-stat-label {
  font-size: 1rem;
  color: #6e6e73;
  max-width: 28rem;
  margin: 0 auto;
  line-height: 1.6;
}
.dark .blog-stat-callout { background: var(--bg-card) !important; border-color: var(--border-dark) !important; }
.dark .blog-stat-label { color: var(--text-secondary-dark) !important; }

/* Stat VS (two side by side) */
.blog-stat-split { padding: 2rem; }
.blog-stat-vs {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 2rem;
}
.blog-stat-vs-item { flex: 1; max-width: 14rem; }
.blog-stat-vs-item .blog-stat-number { font-size: 3rem; }
.blog-stat-vs-divider {
  font-size: 1.25rem;
  font-weight: 600;
  color: #d1d5db;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}
.dark .blog-stat-vs-divider { color: var(--text-muted-dark) !important; }

/* --- Pull Quote --- */
.blog-pullquote {
  position: relative;
  text-align: center;
  padding: 2.5rem 3rem;
  margin: 3rem 0;
}
.blog-pullquote-mark {
  font-size: 4rem;
  line-height: 1;
  color: #c7d2fe;
  font-family: Georgia, serif;
  margin-bottom: 0.5rem;
}
.blog-pullquote-text {
  font-size: 1.375rem;
  font-weight: 500;
  line-height: 1.5;
  color: #1d1d1f;
  font-style: italic;
  max-width: 36rem;
  margin: 0 auto;
}
.dark .blog-pullquote-mark { color: #4338ca !important; }
.dark .blog-pullquote-text { color: var(--text-primary-dark) !important; }

/* --- Signal Degradation Diagram --- */
.blog-signal-diagram {
  background: #fafafa;
  border: 1px solid #e5e5e7;
  border-radius: 1rem;
  padding: 2rem;
  margin: 2.5rem 0;
}
.blog-signal-title {
  font-size: 1rem;
  font-weight: 700;
  color: #1d1d1f;
  margin-bottom: 0.25rem;
}
.blog-signal-subtitle {
  font-size: 0.8125rem;
  color: #86868b;
  margin-bottom: 1.5rem;
}
.blog-signal-steps {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}
.blog-signal-step {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.25rem;
}
.blog-signal-meta {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
}
.blog-signal-role {
  font-size: 0.8125rem;
  font-weight: 600;
  color: #374151;
}
.blog-signal-pct {
  font-size: 0.75rem;
  font-weight: 600;
  color: #86868b;
}
.blog-signal-bar-wrap {
  width: 100%;
  height: 8px;
  background: #e5e7eb;
  border-radius: 4px;
  overflow: hidden;
}
.blog-signal-bar {
  height: 100%;
  border-radius: 4px;
  background: linear-gradient(90deg, #4f46e5, #7c3aed);
  transition: width 0.6s ease;
}
.blog-signal-step:nth-child(3) .blog-signal-bar { background: linear-gradient(90deg, #7c3aed, #a855f7); }
.blog-signal-step:nth-child(4) .blog-signal-bar { background: linear-gradient(90deg, #a855f7, #d946ef); }
.blog-signal-step:nth-child(5) .blog-signal-bar { background: linear-gradient(90deg, #d946ef, #ef4444); }
.blog-signal-step:nth-child(6) .blog-signal-bar { background: linear-gradient(90deg, #ef4444, #dc2626); }
.blog-signal-detail {
  font-size: 0.75rem;
  color: #86868b;
  font-style: italic;
}
.dark .blog-signal-diagram { background: var(--bg-card) !important; border-color: var(--border-dark) !important; }
.dark .blog-signal-title { color: var(--text-primary-dark) !important; }
.dark .blog-signal-subtitle { color: var(--text-muted-dark) !important; }
.dark .blog-signal-role { color: var(--text-secondary-dark) !important; }
.dark .blog-signal-pct { color: var(--text-muted-dark) !important; }
.dark .blog-signal-bar-wrap { background: var(--bg-elevated) !important; }
.dark .blog-signal-detail { color: var(--text-muted-dark) !important; }

/* --- Before / After Comparison --- */
.blog-compare {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin: 2.5rem 0;
}
.blog-compare-col {
  border-radius: 0.75rem;
  padding: 1.5rem;
  border: 1px solid;
}
.blog-compare-before {
  background: #fef2f2;
  border-color: #fecaca;
}
.blog-compare-after {
  background: #f0fdf4;
  border-color: #bbf7d0;
}
.blog-compare-header {
  font-size: 0.8125rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 1rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid;
}
.blog-compare-before .blog-compare-header {
  color: #b91c1c;
  border-color: #fecaca;
}
.blog-compare-after .blog-compare-header {
  color: #15803d;
  border-color: #bbf7d0;
}
.blog-compare-item {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  padding: 0.375rem 0;
  font-size: 0.875rem;
  line-height: 1.5;
  color: #374151;
}
.blog-compare-item svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
  margin-top: 0.125rem;
}
.blog-compare-before .blog-compare-item svg { color: #dc2626; }
.blog-compare-after .blog-compare-item svg { color: #16a34a; }
.dark .blog-compare-before { background: rgba(127, 29, 29, 0.15) !important; border-color: #7f1d1d !important; }
.dark .blog-compare-after { background: rgba(20, 83, 45, 0.15) !important; border-color: #14532d !important; }
.dark .blog-compare-before .blog-compare-header { color: #fca5a5 !important; border-color: #7f1d1d !important; }
.dark .blog-compare-after .blog-compare-header { color: #86efac !important; border-color: #14532d !important; }
.dark .blog-compare-item { color: var(--text-secondary-dark) !important; }

/* --- Install CTA Block --- */
.blog-install-cta {
  background: linear-gradient(135deg, #fafafa, #f5f5f7);
  border: 1px solid #e5e5e7;
  border-radius: 1rem;
  padding: 2rem;
  margin: 2.5rem 0;
}
.blog-install-steps {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  margin-bottom: 1.5rem;
}
.blog-install-step {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
}
.blog-install-num {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: #1d1d1f;
  color: #fff;
  font-size: 0.8125rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin-top: 0.125rem;
}
.blog-install-label {
  font-size: 0.9375rem;
  font-weight: 500;
  color: #1d1d1f;
  margin-bottom: 0.25rem;
}
.blog-install-link {
  font-size: 0.8125rem;
  color: #4f46e5;
  text-decoration: none;
  font-weight: 500;
}
.blog-install-link:hover { text-decoration: underline; }
.blog-install-cmd {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background: #1e1e1e;
  border-radius: 0.5rem;
  padding: 0.625rem 0.75rem;
  margin-top: 0.375rem;
  overflow-x: auto;
}
.blog-install-cmd-text {
  flex: 1;
  font-family: 'SF Mono', 'Monaco', 'Consolas', monospace;
  font-size: 0.8125rem;
  color: #d4d4d4;
  white-space: nowrap;
}
.blog-install-prompt { color: #6e6e73; }
.blog-install-copy {
  background: #2d2d2d;
  border: 1px solid #3d3d3d;
  border-radius: 0.25rem;
  color: #a0a0a6;
  font-size: 0.75rem;
  font-weight: 500;
  padding: 0.25rem 0.625rem;
  cursor: pointer;
  white-space: nowrap;
  transition: all 0.2s;
}
.blog-install-copy:hover { background: #3d3d3d; color: #fff; }
.blog-install-buttons {
  display: flex;
  gap: 0.75rem;
  padding-top: 0.5rem;
}
.blog-install-btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.625rem 1.5rem;
  background: #1d1d1f;
  color: #fff;
  font-size: 0.875rem;
  font-weight: 500;
  border-radius: 9999px;
  text-decoration: none;
  transition: all 0.2s;
}
.blog-install-btn-primary:hover { background: #000; transform: scale(1.02); }
.blog-install-btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.625rem 1.5rem;
  background: #fff;
  color: #1d1d1f;
  font-size: 0.875rem;
  font-weight: 500;
  border-radius: 9999px;
  border: 1px solid #d2d2d7;
  text-decoration: none;
  transition: all 0.2s;
}
.blog-install-btn-secondary:hover { border-color: #1d1d1f; }
.dark .blog-install-cta { background: linear-gradient(135deg, var(--bg-card), var(--bg-elevated)) !important; border-color: var(--border-dark) !important; }
.dark .blog-install-num { background: #fff !important; color: #000 !important; }
.dark .blog-install-label { color: var(--text-primary-dark) !important; }
.dark .blog-install-link { color: #818cf8 !important; }
.dark .blog-install-btn-primary { background: #fff !important; color: #000 !important; }
.dark .blog-install-btn-primary:hover { background: #e5e5e7 !important; }
.dark .blog-install-btn-secondary { background: var(--bg-elevated) !important; color: var(--text-primary-dark) !important; border-color: var(--border-dark) !important; }
.dark .blog-install-btn-secondary:hover { border-color: var(--text-secondary-dark) !important; }

/* --- Responsive --- */
@media (max-width: 768px) {
  .blog-hero { padding: 5.5rem 1rem 1.5rem; }
  .blog-hero-title { font-size: 2rem; }
  .blog-newsletter-form { flex-direction: column; }
  .blog-newsletter-form button { width: 100%; }
  .blog-filter { gap: 0.375rem; }
  .blog-filter-btn { padding: 0.375rem 1rem; font-size: 0.8125rem; }
  .blog-author { flex-direction: column; text-align: center; align-items: center; }
  .blog-stat-number { font-size: 2.5rem; }
  .blog-stat-vs { flex-direction: column; gap: 1rem; }
  .blog-stat-vs-item .blog-stat-number { font-size: 2.5rem; }
  .blog-compare { grid-template-columns: 1fr; }
  .blog-pullquote { padding: 2rem 1.5rem; }
  .blog-pullquote-text { font-size: 1.125rem; }
  .blog-takeaways { padding: 1.25rem 1.5rem; }
  .blog-install-buttons { flex-direction: column; }
  .blog-install-cta { padding: 1.5rem; }
}