/* Cal Clear Blog Styles */
/* Matches landing page: white bg, Inter font, brand-600 (#0284c7), slate palette */

:root {
  --accent: #0284c7;
  --accent-dark: #0369a1;
  --accent-light: #f0f9ff;
  --bg: #ffffff;
  --bg-alt: #f8fafc;
  --card-bg: #ffffff;
  --card-border: #f1f5f9;
  --border: #e2e8f0;
  --text-primary: #0f172a;
  --text-secondary: #64748b;
  --text-muted: #94a3b8;
  --font-sans: 'Inter', system-ui, sans-serif;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a { color: inherit; }

/* ============================================
   Navigation — matches landing page header
   ============================================ */

.blog-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--card-border);
  padding: 0 16px;
}

.nav-inner {
  max-width: 1152px;
  margin: 0 auto;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

@media (min-width: 640px) {
  .blog-nav {
    padding: 0 24px;
  }
  .blog-header {
    padding: 80px 24px 48px;
  }
  .blog-categories,
  .blog-grid,
  .blog-section,
  .blog-hub-intro,
  .article-content,
  .related-articles {
    padding-left: 24px;
    padding-right: 24px;
  }
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  color: var(--text-primary);
  font-weight: 700;
  font-size: 1.25rem;
}

.nav-logo-icon {
  width: 32px;
  height: 32px;
  background: var(--accent);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-links a {
  color: #475569;
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 400;
  transition: color 0.15s;
}

.nav-links a:hover {
  color: var(--text-primary);
}

.nav-cta {
  background: var(--accent) !important;
  color: white !important;
  padding: 8px 16px;
  border-radius: 8px;
  font-weight: 500 !important;
  font-size: 0.875rem !important;
  transition: background 0.15s !important;
}

.nav-cta:hover {
  background: var(--accent-dark) !important;
  color: white !important;
}

/* ============================================
   Blog Hub / Index
   ============================================ */

.blog-header {
  text-align: center;
  padding: 80px 16px 48px;
  max-width: 800px;
  margin: 0 auto;
}

.blog-header h1 {
  font-size: 3rem;
  font-weight: 700;
  letter-spacing: -0.025em;
  margin-bottom: 1rem;
  line-height: 1.15;
  color: var(--text-primary);
}

.blog-header p {
  color: var(--text-secondary);
  font-size: 1.25rem;
  max-width: 600px;
  margin: 0 auto;
  line-height: 1.6;
}

.blog-categories {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  max-width: 900px;
  margin: 0 auto 48px;
  padding: 0 16px;
}

.blog-category-btn {
  padding: 8px 18px;
  border-radius: 9999px;
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--text-secondary);
  font-size: 0.875rem;
  cursor: pointer;
  transition: all 0.15s;
  text-decoration: none;
  font-family: var(--font-sans);
  font-weight: 500;
}

.blog-category-btn:hover,
.blog-category-btn.active {
  background: var(--accent);
  color: white;
  border-color: var(--accent);
}

.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 20px;
  max-width: 1152px;
  margin: 0 auto;
  padding: 0 16px 80px;
}

.blog-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 12px;
  overflow: hidden;
  transition: all 0.15s;
  text-decoration: none;
  color: inherit;
  display: flex;
  flex-direction: column;
  padding: 24px;
  box-shadow: 0 1px 2px rgba(0,0,0,0.04);
}

.blog-card:hover {
  border-color: var(--accent);
  box-shadow: 0 4px 12px rgba(0,0,0,0.06);
  transform: translateY(-2px);
}

.blog-card-image {
  height: 140px;
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-dark) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.5rem;
  border-radius: 8px;
  margin-bottom: 16px;
}

.blog-card-content {
  padding: 0;
}

.blog-card-category {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--accent);
  margin-bottom: 10px;
}

.blog-card h2,
.blog-card h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 8px;
  line-height: 1.4;
  color: var(--text-primary);
  letter-spacing: -0.01em;
}

.blog-card p {
  color: var(--text-secondary);
  font-size: 0.875rem;
  line-height: 1.6;
  margin-bottom: 16px;
}

.blog-card-meta {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.blog-card-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1.4;
  margin-bottom: 16px;
  flex: 1;
}

.blog-card-cta {
  font-size: 0.85rem;
  color: var(--accent);
  font-weight: 500;
}

.blog-card.featured {
  border: 2px solid var(--accent);
}

/* ============================================
   Blog Sections (hub page)
   ============================================ */

.blog-section {
  max-width: 1152px;
  margin: 0 auto 60px;
  padding: 0 16px;
}

.section-title {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--text-primary);
  letter-spacing: -0.025em;
}

.section-desc {
  color: var(--text-muted);
  font-size: 1rem;
  margin-bottom: 32px;
}

.subsection-title {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin: 32px 0 20px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--card-border);
}

/* ============================================
   Article Page
   ============================================ */

.article-header {
  text-align: center;
  padding: 80px 24px 40px;
  max-width: 800px;
  margin: 0 auto;
}

.article-category {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--accent);
  margin-bottom: 16px;
}

.breadcrumb {
  font-size: 0.875rem;
  color: var(--text-muted);
  margin-bottom: 20px;
}

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

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

.article-header h1 {
  font-size: 2.5rem;
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 20px;
  color: var(--text-primary);
  letter-spacing: -0.025em;
}

.article-meta {
  color: var(--text-muted);
  font-size: 0.875rem;
}

.article-content {
  max-width: 720px;
  margin: 0 auto;
  padding: 0 16px 60px;
}

.article-content p {
  color: #475569;
  line-height: 1.8;
  margin-bottom: 1.5rem;
  font-size: 1.05rem;
}

.article-content h2 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-top: 2.5rem;
  margin-bottom: 1rem;
  color: var(--text-primary);
  line-height: 1.3;
  letter-spacing: -0.025em;
}

.article-content h3 {
  font-size: 1.2rem;
  font-weight: 600;
  margin-top: 2rem;
  margin-bottom: 0.75rem;
  color: var(--text-primary);
  letter-spacing: -0.01em;
}

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

.article-content li {
  color: #475569;
  line-height: 1.75;
  margin-bottom: 0.5rem;
  font-size: 1.05rem;
}

.article-content a {
  color: var(--accent);
  text-decoration: none;
}

.article-content a:hover {
  text-decoration: underline;
}

.article-content blockquote {
  border-left: 3px solid var(--accent);
  padding: 16px 20px;
  margin: 2rem 0;
  font-style: italic;
  color: #475569;
  background: var(--accent-light);
  border-radius: 0 8px 8px 0;
}

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

.article-content code {
  background: var(--accent-light);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 0.9em;
  color: var(--accent-dark);
}

/* ============================================
   Comparison Table
   ============================================ */

.comparison-table {
  width: 100%;
  border-collapse: collapse;
  margin: 2rem 0;
  background: var(--card-bg);
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--card-border);
  box-shadow: 0 1px 2px rgba(0,0,0,0.04);
}

.comparison-table th,
.comparison-table td {
  padding: 14px 18px;
  text-align: left;
  border-bottom: 1px solid var(--card-border);
  font-size: 0.875rem;
}

.comparison-table th {
  background: var(--accent-light);
  font-weight: 600;
  color: var(--text-primary);
}

.comparison-table tr:last-child td {
  border-bottom: none;
}

.comparison-table .check {
  color: #16a34a;
  font-weight: 600;
}

.comparison-table .cross {
  color: #dc2626;
}

.comparison-table .winner {
  background: var(--accent-light);
}

/* ============================================
   CTA Box
   ============================================ */

.article-cta {
  background: var(--accent-light);
  border: 1px solid #bae6fd;
  border-radius: 12px;
  padding: 40px;
  text-align: center;
  margin: 3rem 0;
}

.article-cta h3 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 12px;
  margin-top: 0;
  color: var(--text-primary);
  letter-spacing: -0.025em;
}

.article-cta p {
  color: var(--text-secondary);
  margin-bottom: 24px;
  font-size: 1rem;
}

.article-cta .cta-buttons {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 24px;
  border-radius: 8px;
  font-weight: 500;
  text-decoration: none;
  transition: all 0.15s;
  font-family: var(--font-sans);
  font-size: 0.875rem;
  cursor: pointer;
  border: none;
}

.btn-primary,
.article-content .btn-primary {
  background: var(--accent);
  color: white;
}

.btn-primary:hover,
.article-content .btn-primary:hover {
  background: var(--accent-dark);
  color: white;
}

.btn-secondary,
.article-content .btn-secondary {
  background: var(--bg);
  border: 1px solid var(--border);
  color: #475569;
}

.btn-secondary:hover,
.article-content .btn-secondary:hover {
  background: var(--bg-alt);
  border-color: var(--accent);
  color: #475569;
}

/* ============================================
   Verdict Box
   ============================================ */

.verdict-box {
  background: var(--accent-light);
  border: 2px solid var(--accent);
  border-radius: 12px;
  padding: 32px;
  margin: 2rem 0;
}

.verdict-box h3 {
  color: var(--accent-dark);
  margin-top: 0;
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 1.1rem;
  font-weight: 600;
}

.verdict-box p {
  margin-bottom: 0;
  color: #475569;
}

/* ============================================
   Pros / Cons
   ============================================ */

.pros-cons {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin: 2rem 0;
}

.pros,
.cons {
  background: var(--bg);
  border-radius: 12px;
  padding: 24px;
  border: 1px solid var(--card-border);
  box-shadow: 0 1px 2px rgba(0,0,0,0.04);
}

.pros h4 {
  color: #16a34a;
  margin-top: 0;
  margin-bottom: 12px;
  font-weight: 600;
}

.cons h4 {
  color: #dc2626;
  margin-top: 0;
  margin-bottom: 12px;
  font-weight: 600;
}

.pros ul,
.cons ul {
  padding-left: 1.25rem;
}

.pros li,
.cons li {
  color: #475569;
  margin-bottom: 6px;
  line-height: 1.6;
  font-size: 0.925rem;
}

/* ============================================
   Hub Intro / Info Box
   ============================================ */

.blog-hub-intro {
  max-width: 900px;
  margin: 0 auto 60px;
  padding: 0 16px;
}

.hub-content {
  background: var(--bg);
  border: 1px solid var(--card-border);
  border-radius: 12px;
  padding: 40px;
  box-shadow: 0 1px 2px rgba(0,0,0,0.04);
}

.hub-content h2 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 16px;
  color: var(--text-primary);
  letter-spacing: -0.025em;
}

.hub-content h3 {
  font-size: 1.15rem;
  font-weight: 600;
  margin-top: 28px;
  margin-bottom: 12px;
  color: var(--text-primary);
}

.hub-content p {
  color: #475569;
  line-height: 1.75;
  margin-bottom: 12px;
}

.hub-features {
  list-style: none;
  padding: 0;
  margin: 20px 0 32px;
}

.hub-features li {
  padding: 12px 0;
  border-bottom: 1px solid var(--card-border);
  color: #475569;
  line-height: 1.7;
}

.hub-features li:last-child {
  border-bottom: none;
}

.hub-features li strong {
  color: var(--accent);
}

.hub-cta {
  background: var(--accent-light);
  border: 1px solid #bae6fd;
  border-radius: 12px;
  padding: 32px;
  text-align: center;
  margin-top: 32px;
}

.hub-cta h4 {
  font-size: 1.15rem;
  font-weight: 600;
  margin: 0 0 8px;
  color: var(--text-primary);
}

.hub-cta p {
  margin: 0 0 20px;
  color: #475569;
}

/* ============================================
   Recommended Reading
   ============================================ */

.recommended-reading {
  max-width: 720px;
  margin: 0 auto;
  padding: 40px 24px;
  border-top: 1px solid var(--card-border);
}

.recommended-reading h3 {
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 16px;
  color: var(--text-primary);
}

.recommended-links {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.recommended-links a {
  display: block;
  padding: 12px 16px;
  background: var(--bg);
  border-radius: 8px;
  color: var(--text-primary);
  text-decoration: none;
  transition: all 0.15s;
  border: 1px solid var(--card-border);
  font-size: 0.925rem;
  font-weight: 500;
}

.recommended-links a:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-light);
}

/* ============================================
   FAQ Section
   ============================================ */

.faq-section {
  max-width: 720px;
  margin: 2rem auto;
  background: var(--bg);
  border-radius: 12px;
  padding: 24px 28px;
  border: 1px solid var(--card-border);
  box-shadow: 0 1px 2px rgba(0,0,0,0.04);
}

.faq-section h2 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 16px;
  color: var(--text-primary);
}

.faq-item {
  border-bottom: 1px solid var(--card-border);
  padding: 14px 0;
}

.faq-item:last-child {
  border-bottom: none;
}

.faq-item h3 {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 6px;
}

.faq-item p {
  font-size: 0.925rem;
  margin: 0;
  color: #475569;
}

/* ============================================
   Footer — matches landing page footer
   ============================================ */

.footer {
  padding: 32px 24px;
  border-top: 1px solid var(--card-border);
  margin-top: 0;
}

.footer-content {
  max-width: 1152px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
  text-align: center;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 8px;
}

.footer-brand h4 {
  margin: 0;
  font-size: 1rem;
  font-weight: 600;
  color: #475569;
}

.footer-brand p {
  margin: 0;
  font-size: 0.875rem;
  color: var(--text-muted);
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 24px;
}

.footer-links a {
  color: var(--text-muted);
  font-size: 0.875rem;
  text-decoration: none;
  transition: color 0.15s;
}

.footer-links a:hover {
  color: #475569;
}

.footer-bottom {
  text-align: center;
  padding-top: 16px;
  border-top: 1px solid var(--card-border);
  width: 100%;
}

.footer-bottom p {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin: 0;
}

.footer-bottom a {
  color: var(--accent);
  text-decoration: none;
}

.footer-bottom a:hover {
  text-decoration: underline;
}

/* ============================================
   Topic Grid (hub page)
   ============================================ */

.topic-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin: 24px 0 32px;
}

.topic-card {
  background: var(--bg);
  border: 1px solid var(--card-border);
  border-radius: 12px;
  padding: 24px;
  transition: all 0.15s;
  box-shadow: 0 1px 2px rgba(0,0,0,0.04);
}

.topic-card:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0,0,0,0.06);
}

.topic-icon {
  font-size: 2rem;
  display: block;
  margin-bottom: 12px;
}

.topic-card h4 {
  font-size: 0.95rem;
  font-weight: 600;
  margin: 0 0 6px;
  color: var(--text-primary);
}

.topic-card h4 a {
  color: inherit;
  text-decoration: none;
}

.topic-card h4 a:hover {
  color: var(--accent);
}

.topic-card p {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin: 0;
  line-height: 1.5;
}

/* ============================================
   Featured Grid
   ============================================ */

.featured-grid {
  grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
}

.featured-grid .blog-card {
  border: 2px solid var(--accent);
}

/* ============================================
   Highlight Box
   ============================================ */

.highlight-box {
  background: var(--accent-light);
  border-left: 3px solid var(--accent);
  border-radius: 0 8px 8px 0;
  padding: 16px 20px;
  margin: 2rem 0;
}

.highlight-box p {
  margin: 0;
  font-size: 0.95rem;
  color: #475569;
}

/* ============================================
   Related Articles
   ============================================ */

.related-articles {
  max-width: 800px;
  margin: 40px auto;
  padding: 0 16px 40px;
  border-top: 1px solid var(--card-border);
  padding-top: 40px;
}

.related-articles h2 {
  text-align: center;
  margin-bottom: 24px;
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.025em;
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.related-grid .blog-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 12px;
  padding: 20px;
  text-decoration: none;
  transition: all 0.15s;
  box-shadow: 0 1px 2px rgba(0,0,0,0.04);
}

.related-grid .blog-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0,0,0,0.06);
  border-color: var(--accent);
}

.related-grid .blog-card h3 {
  font-size: 0.925rem;
  font-weight: 600;
  margin: 0;
  line-height: 1.4;
  color: var(--text-primary);
}

.related-grid .blog-card-category {
  margin-bottom: 8px;
}

/* ============================================
   Mobile Responsive
   ============================================ */

@media (max-width: 768px) {
  .blog-header {
    padding: 64px 16px 32px;
  }

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

  .blog-header p {
    font-size: 1rem;
  }

  .blog-grid {
    padding: 0 16px 60px;
    gap: 12px;
    grid-template-columns: 1fr;
  }

  .blog-card-content {
    padding: 0;
  }

  .blog-categories {
    padding: 0 16px;
    gap: 8px;
    margin-bottom: 32px;
  }

  .blog-category-btn {
    padding: 6px 14px;
    font-size: 0.8rem;
  }

  .article-header {
    padding: 64px 16px 24px;
  }

  .article-header h1 {
    font-size: 1.75rem;
  }

  .article-content {
    padding: 0 16px 40px;
  }

  .article-content p,
  .article-content li {
    font-size: 1rem;
  }

  .article-cta {
    padding: 24px 16px;
    margin: 2rem 0;
  }

  .article-cta h3 {
    font-size: 1.25rem;
  }

  .btn {
    padding: 10px 20px;
    font-size: 0.875rem;
    width: 100%;
    justify-content: center;
  }

  .pros-cons {
    grid-template-columns: 1fr;
  }

  .comparison-table {
    font-size: 0.8rem;
    display: block;
    overflow-x: auto;
  }

  .comparison-table th,
  .comparison-table td {
    padding: 10px 12px;
    min-width: 100px;
  }

  .verdict-box {
    padding: 20px;
  }

  .hub-content {
    padding: 24px;
  }

  .topic-grid {
    grid-template-columns: 1fr;
  }

  .related-grid {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .footer {
    padding: 24px 16px;
  }

  .footer-brand {
    flex-direction: column;
    text-align: center;
  }

  .footer-links {
    gap: 16px;
  }

  .recommended-reading {
    padding: 24px 16px;
  }

  .nav-links {
    gap: 16px;
  }

  .nav-links a:not(.nav-cta) {
    display: none;
  }
}

@media (max-width: 480px) {
  .blog-header h1 {
    font-size: 1.6rem;
  }

  .article-header h1 {
    font-size: 1.5rem;
  }
}