/* QuizCards Blog — Shared Styles */
@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700&family=Poppins:wght@500;600;700;800&display=swap');

:root {
  --bg: #FDFBF7;
  --bg-tint: #F6F3ED;
  --deep: #1D106B;
  --purple-dark: #372B7E;
  --purple: #7763E8;
  --purple-glow: #6F5AE9;
  --purple-mid: #513DC3;
  --lavender: #EAE6FF;
  --lavender-soft: #F0EEFF;
  --green: #85D961;
  --white: #FFFFFF;
  --heading: #1E2627;
  --body: #444444;
  --secondary: #5E5E5E;
  --dim: #767676;
  --border: rgba(29,16,107,0.07);
  --border-strong: rgba(29,16,107,0.12);
  --font-display: 'Poppins', sans-serif;
  --font-body: 'Outfit', sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--body);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

/* --- NAV (identical to landing page) --- */
.blog-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 0 48px;
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(253,251,247,0.8);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  transition: all 0.3s;
}
.blog-nav.scrolled { box-shadow: 0 4px 24px rgba(29,16,107,0.06); }
.blog-nav .logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}
.blog-nav .nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
}
.blog-nav .nav-links a {
  font-size: 14px;
  font-weight: 500;
  color: var(--secondary);
  text-decoration: none;
  transition: color 0.2s;
}
.blog-nav .nav-links a:hover { color: var(--deep); }
.blog-nav .btn-login {
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 600;
  padding: 10px 24px;
  border-radius: 10px;
  background: transparent;
  color: var(--deep);
  border: 2px solid var(--border-strong);
  text-decoration: none !important;
  transition: all 0.25s;
}
.blog-nav .btn-login:hover {
  border-color: var(--purple);
  background: var(--lavender-soft);
  transform: translateY(-1px);
}
.blog-nav .btn-signup {
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 700;
  padding: 11px 26px;
  border-radius: 10px;
  border: none;
  cursor: pointer;
  background: linear-gradient(135deg, var(--purple-glow), var(--purple-dark));
  color: white !important;
  box-shadow: 0 4px 16px rgba(111,90,233,0.3);
  text-decoration: none !important;
  transition: all 0.25s;
}
.blog-nav .btn-signup:hover {
  box-shadow: 0 6px 24px rgba(111,90,233,0.4);
  transform: translateY(-2px);
  color: white !important;
}

/* --- BLOG LISTING --- */
.blog-hero {
  padding: 110px 48px 32px;
  text-align: center;
}
.blog-hero h1 {
  font-family: var(--font-display);
  font-size: 36px;
  font-weight: 800;
  color: var(--deep);
  margin-bottom: 8px;
}
.blog-hero p {
  font-size: 16px;
  color: var(--secondary);
  max-width: 520px;
  margin: 0 auto;
}

/* Category filter */
.category-filters {
  display: flex;
  justify-content: center;
  gap: 10px;
  padding: 0 48px 32px;
  flex-wrap: wrap;
}
.cat-btn {
  padding: 8px 18px;
  border-radius: 999px;
  border: 1.5px solid var(--border-strong);
  background: var(--white);
  color: var(--secondary);
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s;
}
.cat-btn:hover { border-color: var(--purple-glow); color: var(--deep); }
.cat-btn.active {
  background: var(--purple-glow);
  color: var(--white);
  border-color: var(--purple-glow);
}

/* Article cards grid */
.blog-grid {
  max-width: 1000px;
  margin: 0 auto;
  padding: 0 48px 60px;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 24px;
}
.blog-card {
  background: var(--white);
  border-radius: 16px;
  border: 1px solid var(--border);
  overflow: hidden;
  transition: transform 0.2s, box-shadow 0.2s;
  text-decoration: none;
  color: inherit;
  display: flex;
  flex-direction: column;
}
.blog-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(29,16,107,0.08);
}
.card-img {
  width: 100%;
  height: 180px;
  object-fit: cover;
  background: var(--lavender-soft);
}
.card-body {
  padding: 20px 22px 24px;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.card-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 10px;
  font-size: 12px;
  color: var(--secondary);
}
.card-category {
  padding: 3px 10px;
  border-radius: 999px;
  background: var(--lavender-soft);
  color: var(--purple-glow);
  font-weight: 600;
  font-size: 11px;
}
.card-body h2 {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  color: var(--deep);
  line-height: 1.3;
  margin-bottom: 8px;
}
.card-excerpt {
  font-size: 14px;
  color: var(--body);
  line-height: 1.6;
  flex: 1;
}
.card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 14px;
}
.card-tag {
  padding: 2px 8px;
  border-radius: 4px;
  background: var(--bg-tint);
  font-size: 11px;
  color: var(--secondary);
  font-weight: 500;
}

/* --- ARTICLE PAGE --- */
.article-header {
  max-width: 720px;
  margin: 0 auto;
  padding: 100px 32px 0;
}
.article-header .breadcrumb {
  font-size: 13px;
  color: var(--secondary);
  margin-bottom: 20px;
}
.article-header .breadcrumb a {
  color: var(--purple-glow);
  text-decoration: none;
}
.article-header .breadcrumb a:hover { text-decoration: underline; }
.article-header h1 {
  font-family: var(--font-display);
  font-size: 34px;
  font-weight: 800;
  color: var(--deep);
  line-height: 1.2;
  margin-bottom: 16px;
  letter-spacing: -0.5px;
}
.article-meta {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  font-size: 13px;
  color: var(--secondary);
  margin-bottom: 32px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--border);
}
.article-meta .category-badge {
  padding: 4px 12px;
  border-radius: 999px;
  background: var(--lavender-soft);
  color: var(--purple-glow);
  font-weight: 600;
  font-size: 12px;
}

/* Article body */
.article-body {
  max-width: 720px;
  margin: 0 auto;
  padding: 0 32px 40px;
}
.article-body p {
  font-size: 16px;
  line-height: 1.8;
  margin-bottom: 20px;
}
.article-body h2 {
  font-family: var(--font-display);
  font-size: 24px;
  font-weight: 700;
  color: var(--deep);
  margin: 36px 0 14px;
}
.article-body h3 {
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 600;
  color: var(--purple-dark);
  margin: 28px 0 10px;
}
.article-body ul, .article-body ol {
  padding-left: 24px;
  margin-bottom: 20px;
}
.article-body li {
  font-size: 16px;
  line-height: 1.8;
  margin-bottom: 6px;
}
.article-body blockquote {
  margin: 24px 0;
  padding: 20px 24px;
  background: var(--lavender-soft);
  border-left: 4px solid var(--purple-glow);
  border-radius: 0 12px 12px 0;
  font-size: 16px;
  color: var(--deep);
  font-style: italic;
}
.article-body img {
  max-width: 100%;
  height: auto;
  border-radius: 12px;
  margin: 24px 0;
  display: block;
}
.article-body a {
  color: var(--purple-glow);
  text-decoration: underline;
}
.article-body .callout {
  margin: 28px 0;
  padding: 22px 24px;
  background: var(--bg-tint);
  border-radius: 12px;
  border: 1px solid var(--border-strong);
}
.article-body .callout strong { color: var(--deep); }

/* Tags at bottom of article */
.article-tags {
  max-width: 720px;
  margin: 0 auto;
  padding: 0 32px 24px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.article-tag {
  padding: 4px 12px;
  border-radius: 6px;
  background: var(--bg-tint);
  font-size: 12px;
  color: var(--secondary);
  font-weight: 500;
  text-decoration: none;
}

/* Share buttons */
.share-bar {
  max-width: 720px;
  margin: 0 auto;
  padding: 24px 32px;
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}
.share-bar span {
  font-size: 13px;
  font-weight: 600;
  color: var(--deep);
}
.share-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  border-radius: 8px;
  font-size: 13px;
  font-weight: 500;
  text-decoration: none;
  transition: all 0.15s;
  border: 1px solid var(--border-strong);
  color: var(--body);
  background: var(--white);
}
.share-btn:hover {
  border-color: var(--purple-glow);
  color: var(--deep);
  background: var(--lavender-soft);
}

/* Comments */
.comments-section {
  max-width: 720px;
  margin: 0 auto;
  padding: 32px 32px 40px;
}
.comments-section h3 {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 700;
  color: var(--deep);
  margin-bottom: 16px;
}

/* Related posts */
.related-posts {
  max-width: 720px;
  margin: 0 auto;
  padding: 0 32px 48px;
  border-top: 1px solid var(--border);
  padding-top: 32px;
}
.related-posts h3 {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 700;
  color: var(--deep);
  margin-bottom: 16px;
}
.related-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 16px;
}

/* --- FOOTER --- */
.blog-footer {
  padding: 32px 48px;
  border-top: 1px solid var(--border);
  text-align: center;
  font-size: 12px;
  color: var(--secondary);
  line-height: 1.6;
}
.blog-footer a { color: var(--secondary); text-decoration: none; }
.blog-footer a:hover { text-decoration: underline; }

/* --- RESPONSIVE --- */
@media (max-width: 640px) {
  .blog-nav { padding: 0 20px; }
  .blog-hero { padding: 92px 20px 24px; }
  .blog-hero h1 { font-size: 28px; }
  .category-filters { padding: 0 20px 24px; }
  .blog-grid { padding: 0 20px 40px; grid-template-columns: 1fr; }
  .article-header { padding: 88px 20px 0; }
  .article-header h1 { font-size: 26px; }
  .article-body { padding: 0 20px 32px; }
  .article-tags { padding: 0 20px 20px; }
  .share-bar { padding: 20px 20px; }
  .comments-section { padding: 24px 20px 32px; }
  .related-posts { padding: 24px 20px 40px; }
  .blog-footer { padding: 24px 20px; }
}