/* ========================================
   BLOGS PAGES - ISOLATED STYLES
   All classes prefixed with 'clai-blog-'
   Font: Nunito Sans (Brand Font)
   Color Palette: #4b2194, #7c3aed, #0f172a, white
   ======================================== */

@import url('https://fonts.googleapis.com/css2?family=Nunito+Sans:wght@300;400;500;600;700;800;900&display=swap');

:root {
  --clai-blog-purple-50: #faf5ff;
  --clai-blog-purple-100: #f3e8ff;
  --clai-blog-purple-200: #e9d5ff;
  --clai-blog-purple-500: #7c3aed;
  --clai-blog-purple-600: #7c3aed;
  --clai-blog-purple-700: #4b2194;
  --clai-blog-purple-900: #4b2194;
  --clai-blog-white: #ffffff;
  --clai-blog-gray-50: #fafafa;
  --clai-blog-gray-100: #f4f4f5;
  --clai-blog-gray-200: #e4e4e7;
  --clai-blog-gray-300: #d4d4d8;
  --clai-blog-gray-500: #71717a;
  --clai-blog-gray-600: #52525b;
  --clai-blog-gray-700: #0f172a;
  --clai-blog-gray-900: #0f172a;
  --clai-blog-bg-page: #f5f3ff;
}

.clai-blog-body {
  font-family: 'Nunito Sans', sans-serif;
  background: var(--clai-blog-bg-page);
  color: var(--clai-blog-gray-900);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

.clai-blog-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
  padding-top: 120px;
}

/* Hero */
.clai-blog-hero {
  text-align: center;
  max-width: 800px;
  margin: 0 auto 5rem;
}

.clai-blog-hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  background: var(--clai-blog-purple-50);
  color: var(--clai-blog-purple-700);
  border-radius: 50px;
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
  border: 1px solid var(--clai-blog-purple-200);
}

.clai-blog-hero-title {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 700;
  line-height: 1.1;
  margin-bottom: 1.5rem;
  color: var(--clai-blog-gray-900);
  letter-spacing: -0.02em;
  font-family: 'Nunito Sans', sans-serif;
}

.clai-blog-hero-title span {
  color: var(--clai-blog-purple-600);
}

.clai-blog-hero-description {
  font-size: 1.125rem;
  color: var(--clai-blog-gray-500);
  margin-bottom: 2.5rem;
  line-height: 1.8;
}

.clai-blog-hero-cta {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

.clai-blog-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.875rem 1.75rem;
  border-radius: 8px;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.2s ease;
  border: none;
  font-size: 0.9375rem;
  cursor: pointer;
  font-family: 'Nunito Sans', sans-serif;
}

.clai-blog-btn-primary {
  background: var(--clai-blog-purple-600);
  color: var(--clai-blog-white);
}

.clai-blog-btn-primary:hover {
  background: var(--clai-blog-purple-700);
  transform: translateY(-1px);
}

.clai-blog-btn-secondary {
  background: var(--clai-blog-white);
  color: var(--clai-blog-purple-600);
  border: 1px solid var(--clai-blog-purple-200);
}

.clai-blog-btn-secondary:hover {
  background: var(--clai-blog-purple-50);
  border-color: var(--clai-blog-purple-300);
}

/* Controls */
.clai-blog-controls {
  display: flex;
  gap: 1.5rem;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 3rem;
  flex-wrap: wrap;
}

.clai-blog-search-container {
  flex: 1;
  min-width: 300px;
  position: relative;
}

.clai-blog-search {
  width: 100%;
  padding: 0.875rem 1rem 0.875rem 2.75rem;
  background: var(--clai-blog-white);
  border: 1px solid var(--clai-blog-gray-300);
  border-radius: 8px;
  color: var(--clai-blog-gray-900);
  font-size: 0.9375rem;
  outline: none;
  transition: all 0.2s ease;
  font-family: 'Nunito Sans', sans-serif;
}

.clai-blog-search:focus {
  border-color: var(--clai-blog-purple-600);
  box-shadow: 0 0 0 3px var(--clai-blog-purple-100);
}

.clai-blog-search-icon {
  position: absolute;
  left: 1rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--clai-blog-gray-500);
  font-size: 1.125rem;
}

.clai-blog-filters {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.clai-blog-filter-tag {
  padding: 0.625rem 1.125rem;
  background: var(--clai-blog-white);
  border: 1px solid var(--clai-blog-gray-300);
  border-radius: 50px;
  color: var(--clai-blog-gray-700);
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
  font-family: 'Nunito Sans', sans-serif;
}

.clai-blog-filter-tag:hover {
  background: var(--clai-blog-gray-50);
  border-color: var(--clai-blog-gray-400);
}

.clai-blog-filter-tag.active {
  background: var(--clai-blog-purple-600);
  color: var(--clai-blog-white);
  border-color: var(--clai-blog-purple-600);
}

/* Featured Post */
.clai-blog-featured {
  background: var(--clai-blog-white);
  border: 2px solid var(--clai-blog-purple-200);
  border-radius: 16px;
  padding: 3rem;
  margin-bottom: 4rem;
  position: relative;
  overflow: hidden;
  box-shadow: 0 4px 16px rgba(147, 51, 234, 0.1);
}

.clai-blog-featured::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: linear-gradient(180deg, var(--clai-blog-purple-600) 0%, var(--clai-blog-purple-400) 100%);
}

.clai-blog-featured-content {
  max-width: 700px;
}

.clai-blog-featured-label {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--clai-blog-purple-700);
  margin-bottom: 1rem;
  font-family: 'Nunito Sans', sans-serif;
}

.clai-blog-featured h2 {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 1rem;
  color: #0f172a;
  line-height: 1.2;
  font-family: 'Nunito Sans', sans-serif;
}

.clai-blog-featured p {
  color: var(--clai-blog-gray-600);
  margin-bottom: 2rem;
  line-height: 1.7;
  font-size: 1.0625rem;
}

/* Posts Grid */
.clai-blog-posts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 2rem;
  margin-bottom: 4rem;
}

.clai-blog-post-card {
  background: var(--clai-blog-white);
  border: 1px solid var(--clai-blog-purple-100);
  border-radius: 16px;
  padding: 2rem;
  transition: all 0.3s ease;
  cursor: pointer;
  position: relative;
  box-shadow: 0 2px 8px rgba(147, 51, 234, 0.06), 0 1px 3px rgba(0, 0, 0, 0.03);
}

.clai-blog-post-card:hover {
  transform: translateY(-6px);
  border-color: var(--clai-blog-purple-300);
  box-shadow: 0 16px 32px -8px rgba(147, 51, 234, 0.18), 0 8px 16px rgba(147, 51, 234, 0.08);
}

.clai-blog-post-card.hidden {
  display: none;
}

.clai-blog-post-meta {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1rem;
}

.clai-blog-post-date {
  color: var(--clai-blog-gray-500);
  font-size: 0.8125rem;
  font-weight: 500;
}

.clai-blog-post-tag {
  padding: 0.25rem 0.75rem;
  background: var(--clai-blog-purple-100);
  color: var(--clai-blog-purple-700);
  border-radius: 50px;
  font-size: 0.75rem;
  font-weight: 600;
}

.clai-blog-post-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
  color: var(--clai-blog-gray-900);
  line-height: 1.3;
  font-family: 'Nunito Sans', sans-serif;
}

.clai-blog-post-excerpt {
  color: var(--clai-blog-gray-600);
  line-height: 1.6;
  margin-bottom: 1.5rem;
  font-size: 0.9375rem;
}

.clai-blog-read-more {
  color: var(--clai-blog-purple-600);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.875rem;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  transition: gap 0.2s ease;
  font-family: 'Nunito Sans', sans-serif;
}

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

.clai-blog-read-more::after {
  content: '→';
}

/* No Results */
.clai-blog-no-results {
  text-align: center;
  padding: 4rem 2rem;
  display: none;
}

.clai-blog-no-results.show {
  display: block;
}

.clai-blog-no-results-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
  opacity: 0.3;
}

.clai-blog-no-results h3 {
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
  color: var(--clai-blog-gray-700);
  font-family: 'Nunito Sans', sans-serif;
}

.clai-blog-no-results p {
  color: var(--clai-blog-gray-500);
}

/* Responsive */
@media (max-width: 768px) {
  .clai-blog-container {
    padding: 0 1.5rem;
    padding-top: 120px;
  }

  .clai-blog-hero {
    margin-bottom: 4rem;
  }

  .clai-blog-hero-title {
    font-size: 2rem;
  }

  .clai-blog-hero-description {
    font-size: 1rem;
  }

  .clai-blog-hero-cta {
    flex-direction: column;
    align-items: stretch;
  }

  .clai-blog-btn {
    justify-content: center;
  }

  .clai-blog-controls {
    flex-direction: column;
    align-items: stretch;
    gap: 1rem;
  }

  .clai-blog-search-container {
    width: 100%;
    min-width: auto;
  }

  .clai-blog-filters {
    justify-content: center;
  }

  .clai-blog-featured {
    padding: 2rem 1.5rem;
  }

  .clai-blog-featured h2 {
    font-size: 1.5rem;
  }

  .clai-blog-posts-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .clai-blog-post-card {
    padding: 1.5rem;
  }
}

@media (max-width: 480px) {
  .clai-blog-container {
    padding: 0 1rem;
    padding-top: 120px;
  }

  .clai-blog-hero-title {
    font-size: 1.75rem;
  }

  .clai-blog-featured h2 {
    font-size: 1.25rem;
  }

  .clai-blog-posts-grid {
    gap: 1rem;
  }

  .clai-blog-post-card {
    padding: 1.25rem;
  }
}

/* Focus Styles */
.clai-blog-body *:focus-visible {
  outline: 2px solid var(--clai-blog-purple-600);
  outline-offset: 2px;
}

/* ========================================
   BLOG ARTICLE PAGES STYLES
   For individual blog post pages
   ======================================== */

/* Header */
.clai-blog-body .blog-header {
  background: var(--clai-blog-white);
  border: 2px solid var(--clai-blog-purple-200);
  border-radius: 16px;
  padding: 3rem;
  margin-bottom: 3rem;
  box-shadow: 0 4px 16px rgba(147, 51, 234, 0.1);
}

.clai-blog-body .blog-title {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 1rem;
  color: var(--clai-blog-gray-900);
  letter-spacing: -0.02em;
  font-family: 'Nunito Sans', sans-serif;
}

.clai-blog-body .blog-subtitle {
  font-size: 1.125rem;
  color: var(--clai-blog-gray-600);
  margin-bottom: 1.5rem;
  line-height: 1.6;
}

.clai-blog-body .hero-meta {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin-bottom: 2rem;
}

.clai-blog-body .meta-pill {
  padding: 0.5rem 1rem;
  background: var(--clai-blog-purple-50);
  color: var(--clai-blog-purple-700);
  border-radius: 50px;
  font-size: 0.875rem;
  font-weight: 600;
  border: 1px solid var(--clai-blog-purple-200);
}

.clai-blog-body .cta-buttons {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

/* Content Grid */
.clai-blog-body .content-grid {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 2rem;
  margin-bottom: 3rem;
}

/* Article */
.clai-blog-body .article {
  background: var(--clai-blog-white);
  border: 1px solid var(--clai-blog-purple-100);
  border-radius: 16px;
  padding: 3rem;
  box-shadow: 0 2px 8px rgba(147, 51, 234, 0.06);
}

.clai-blog-body .article .lead {
  font-size: 1.125rem;
  color: var(--clai-blog-gray-700);
  margin-bottom: 2rem;
  line-height: 1.7;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--clai-blog-purple-100);
}

.clai-blog-body .article h2 {
  color: var(--clai-blog-purple-600);
  font-size: 1.5rem;
  font-weight: 700;
  margin: 2.5rem 0 1rem 0;
  letter-spacing: -0.01em;
  font-family: 'Nunito Sans', sans-serif;
}

.clai-blog-body .article h2:first-of-type {
  margin-top: 0;
}

.clai-blog-body .article h3 {
  color: var(--clai-blog-gray-900);
  font-size: 1.125rem;
  font-weight: 600;
  margin: 1.5rem 0 0.75rem 0;
  font-family: 'Nunito Sans', sans-serif;
}

.clai-blog-body .article p {
  margin: 0 0 1.25rem 0;
  color: var(--clai-blog-gray-600);
  line-height: 1.7;
}

.clai-blog-body .article ul {
  margin: 1rem 0 1.5rem 1.5rem;
  list-style: none;
}

.clai-blog-body .article ul li {
  position: relative;
  padding-left: 1.5rem;
  margin: 0.75rem 0;
  color: var(--clai-blog-gray-600);
  line-height: 1.6;
}

.clai-blog-body .article ul li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--clai-blog-purple-600);
  font-weight: 600;
}

.clai-blog-body .article strong {
  color: var(--clai-blog-gray-900);
  font-weight: 600;
}

/* Sidebar */
.clai-blog-body .sidebar {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  position: sticky;
  top: 2rem;
  height: fit-content;
}

.clai-blog-body .card {
  background: var(--clai-blog-white);
  border: 1px solid var(--clai-blog-purple-100);
  border-radius: 12px;
  padding: 1.5rem;
  box-shadow: 0 2px 8px rgba(147, 51, 234, 0.06);
}

.clai-blog-body .toc h4 {
  margin: 0 0 1rem 0;
  color: var(--clai-blog-purple-600);
  font-weight: 700;
  font-size: 1rem;
  font-family: 'Nunito Sans', sans-serif;
}

.clai-blog-body .toc a {
  display: block;
  color: var(--clai-blog-gray-600);
  text-decoration: none;
  padding: 0.625rem 0.75rem;
  border-radius: 6px;
  font-size: 0.9375rem;
  transition: all 0.2s ease;
  margin-bottom: 0.25rem;
}

.clai-blog-body .toc a:hover {
  background: var(--clai-blog-purple-50);
  color: var(--clai-blog-purple-600);
}

.clai-blog-body .stats-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.clai-blog-body .stat {
  text-align: center;
  padding: 1rem;
  background: var(--clai-blog-purple-50);
  border-radius: 8px;
  border: 1px solid var(--clai-blog-purple-100);
}

.clai-blog-body .stat strong {
  display: block;
  color: var(--clai-blog-purple-600);
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 0.25rem;
}

.clai-blog-body .stat span {
  display: block;
  color: var(--clai-blog-gray-600);
  font-size: 0.8125rem;
}

.clai-blog-body .sidebar .clai-blog-btn {
  width: 100%;
  justify-content: center;
  margin-bottom: 0.5rem;
}

/* Midway CTA */
.clai-blog-body .midway-cta {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin: 2.5rem 0;
  padding: 1.5rem;
  background: var(--clai-blog-purple-50);
  border-radius: 12px;
  border: 1px solid var(--clai-blog-purple-200);
}

/* Footer */
.clai-blog-body .blog-footer {
  background: var(--clai-blog-white);
  border: 1px solid var(--clai-blog-purple-100);
  border-radius: 16px;
  padding: 2rem;
  margin-bottom: 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1.5rem;
  box-shadow: 0 2px 8px rgba(147, 51, 234, 0.06);
}

.clai-blog-body .footer-strong {
  font-weight: 700;
  color: var(--clai-blog-gray-900);
  font-size: 1.125rem;
}

.clai-blog-body .footer-buttons {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.clai-blog-body .copyright {
  text-align: center;
  color: var(--clai-blog-gray-500);
  font-size: 0.875rem;
  padding: 2rem 0;
}

/* Article Pages Responsive */
@media (max-width: 1024px) {
  .clai-blog-body .content-grid {
    grid-template-columns: 1fr;
  }

  .clai-blog-body .sidebar {
    position: static;
    order: -1;
  }
}

@media (max-width: 768px) {
  .clai-blog-body .blog-header,
  .clai-blog-body .article {
    padding: 2rem 1.5rem;
  }

  .clai-blog-body .blog-title {
    font-size: 1.75rem;
  }

  .clai-blog-body .cta-buttons,
  .clai-blog-body .footer-buttons,
  .clai-blog-body .midway-cta {
    flex-direction: column;
    width: 100%;
  }

  .clai-blog-body .cta-buttons .clai-blog-btn,
  .clai-blog-body .footer-buttons .clai-blog-btn {
    width: 100%;
    justify-content: center;
  }

  .clai-blog-body .blog-footer {
    flex-direction: column;
    align-items: stretch;
    text-align: center;
  }

  .clai-blog-body .stats-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .clai-blog-body .blog-header,
  .clai-blog-body .article {
    padding: 1.5rem 1rem;
  }

  .clai-blog-body .card {
    padding: 1.25rem;
  }
}