/* ── BLOG SHARED STYLES ── */
:root {
  --charcoal: #1a1a1a;
  --terra: #0080D4;
  --terra-dark: #0068B0;
  --soft-blue: #3D9BE9;
  --light-blue: #E8F2FC;
  --text: #4a4a4a;
  --white: #FFFFFF;
  --bg: #F5F8FC;
  --radius: 14px;
  --shadow: 0 4px 24px rgba(0,80,160,0.08);
  --shadow-lg: 0 12px 48px rgba(0,80,160,0.12);
}

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

body {
  font-family: 'Open Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

/* ── NAV ── */
.blog-nav {
  background: var(--white);
  border-bottom: 1px solid rgba(0,0,0,0.06);
  padding: 16px 24px;
  position: sticky;
  top: 0;
  z-index: 100;
}
.blog-nav-inner {
  max-width: 1080px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.blog-nav-brand {
  font-size: 18px;
  font-weight: 700;
  color: var(--charcoal);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 8px;
}
.blog-nav-brand span {
  color: var(--soft-blue);
  font-weight: 300;
  font-size: 14px;
}
.blog-nav-links {
  display: flex;
  gap: 24px;
  align-items: center;
}
.blog-nav-links a {
  color: var(--text);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  transition: color 0.2s;
}
.blog-nav-links a:hover { color: var(--terra); }
.blog-nav-cta {
  background: var(--terra);
  color: var(--white) !important;
  padding: 8px 20px;
  border-radius: 8px;
  font-weight: 600 !important;
  transition: background 0.2s;
}
.blog-nav-cta:hover { background: var(--terra-dark); }

/* ── BLOG INDEX ── */
.blog-hero {
  background: linear-gradient(135deg, var(--light-blue) 0%, #F0F4F8 100%);
  padding: 64px 24px 48px;
  text-align: center;
}
.blog-hero h1 {
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 800;
  color: var(--charcoal);
  margin-bottom: 12px;
}
.blog-hero p {
  font-size: 18px;
  color: var(--text);
  max-width: 560px;
  margin: 0 auto;
}

.blog-grid {
  max-width: 1080px;
  margin: 0 auto;
  padding: 48px 24px;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 28px;
}

.blog-card {
  background: var(--white);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  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(-4px);
  box-shadow: var(--shadow-lg);
}
.blog-card-tag {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: 4px 10px;
  border-radius: 4px;
  margin-bottom: 10px;
}
.tag-oep { background: #E8F2FC; color: #0068B0; }
.tag-iep { background: #E0F2F1; color: #00796B; }
.tag-guide { background: var(--light-blue); color: var(--soft-blue); }
.tag-aep { background: #FEF3C7; color: #92400E; }
.tag-compare { background: #F0E6FF; color: #7C3AED; }
.tag-tips { background: #FEE2E2; color: #DC2626; }
.tag-checklist { background: #ECFDF5; color: #059669; }

.blog-card-body {
  padding: 24px;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.blog-card h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--charcoal);
  margin-bottom: 8px;
  line-height: 1.35;
}
.blog-card p {
  font-size: 14px;
  color: var(--text);
  line-height: 1.6;
  flex: 1;
}
.blog-card-meta {
  font-size: 12px;
  color: #9CA3AF;
  margin-top: 16px;
  padding-top: 12px;
  border-top: 1px solid #F3F4F6;
}

/* ── ARTICLE PAGE ── */
.article-header, .blog-article-header {
  background: linear-gradient(135deg, var(--light-blue) 0%, #F0F4F8 100%);
  padding: 64px 24px 48px;
  text-align: center;
}
.article-header .article-tag, .blog-article-header .article-tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: 6px 14px;
  border-radius: 6px;
  margin-bottom: 16px;
}
.article-header h1, .blog-article-header h1 {
  font-size: clamp(26px, 4vw, 38px);
  font-weight: 800;
  color: var(--charcoal);
  max-width: 720px;
  margin: 0 auto 12px;
  line-height: 1.2;
}
.article-header .article-meta, .blog-article-header .article-meta {
  font-size: 14px;
  color: var(--text);
}
.article-header .article-meta, .blog-article-header .article-meta time {
  font-weight: 600;
}

.article-body, .blog-article-body {
  max-width: 720px;
  margin: 0 auto;
  padding: 48px 24px;
}
.article-body h2, .blog-article-body h2 {
  font-size: 24px;
  font-weight: 700;
  color: var(--charcoal);
  margin: 40px 0 16px;
  line-height: 1.3;
}
.article-body h3, .blog-article-body h3 {
  font-size: 20px;
  font-weight: 600;
  color: var(--charcoal);
  margin: 32px 0 12px;
}
.article-body p, .blog-article-body p {
  margin-bottom: 18px;
  font-size: 17px;
  line-height: 1.75;
}
.article-body ul, .blog-article-body ul, .article-body ol, .blog-article-body ol {
  margin: 0 0 18px 24px;
}
.article-body li, .blog-article-body li {
  margin-bottom: 8px;
  font-size: 17px;
  line-height: 1.6;
}
.article-body strong, .blog-article-body strong {
  color: var(--charcoal);
}

/* Callout box */
.callout {
  background: var(--light-blue);
  border-left: 4px solid var(--terra);
  padding: 20px 24px;
  border-radius: 0 var(--radius) var(--radius) 0;
  margin: 28px 0;
}
.callout p { margin-bottom: 0; font-size: 15px; }
.callout strong { color: var(--charcoal); }

.callout-warm {
  background: #EBF5FF;
  border-left-color: var(--soft-blue);
}

/* Article CTA */
.article-cta {
  background: #0C2340;
  border-radius: var(--radius);
  padding: 40px 32px;
  text-align: center;
  margin: 48px 0;
}
.article-cta h3 {
  color: var(--white);
  font-size: 22px;
  margin: 0 0 8px;
}
.article-cta p {
  color: #9CA3AF;
  font-size: 15px;
  margin-bottom: 20px;
}
.article-cta a {
  display: inline-block;
  background: var(--terra);
  color: var(--white);
  padding: 14px 32px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 700;
  font-size: 16px;
  transition: background 0.2s;
}
.article-cta a:hover { background: var(--terra-dark); }

/* ── FOOTER ── */
.blog-footer {
  background: #0C2340;
  color: #9CA3AF;
  padding: 40px 24px;
  text-align: center;
  font-size: 13px;
  line-height: 1.6;
}
.blog-footer a {
  color: #D1D5DB;
  text-decoration: none;
}
.blog-footer a:hover { color: var(--white); }
.blog-footer-inner {
  max-width: 720px;
  margin: 0 auto;
}
.blog-footer-disclaimer {
  font-size: 11px;
  color: #6B7280;
  margin-top: 20px;
  line-height: 1.5;
}

/* ── RESPONSIVE ── */
@media (max-width: 640px) {
  .blog-grid { grid-template-columns: 1fr; padding: 24px 16px; }
  .blog-nav-links a:not(.blog-nav-cta) { display: none; }
  .article-body, .blog-article-body { padding: 32px 16px; }
  .article-cta { padding: 28px 20px; }
}