/* Shared styles for /blog/* posts. Mirrors landing.html design tokens. */
:root {
  --primary: #0F6E56;
  --primary-light: #1D9E75;
  --primary-bg: #E1F5EE;
  --warning: #BA7517;
  --bg: #FFFFFF;
  --bg-soft: #F6F8FA;
  --surface: #FFFFFF;
  --text: #1A1D21;
  --text-secondary: #5A6169;
  --border: #E2E6EA;
  --accent: #2AB88A;
  --radius-sm: 8px;
  --radius-md: 12px;
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.08);
}
@media (prefers-color-scheme: dark) {
  :root {
    --primary: #1D9E75;
    --primary-light: #2AB88A;
    --primary-bg: rgba(29,158,117,0.15);
    --bg: #0b0d10;
    --bg-soft: #14181d;
    --surface: #14181d;
    --text: #E8EAED;
    --text-secondary: #9AA0A8;
    --border: #2A2E35;
  }
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: 'DM Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
.blog-nav {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 14px 24px;
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: saturate(140%) blur(8px);
}
.blog-nav-inner {
  max-width: 920px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
}
.blog-nav-brand {
  font-weight: 800;
  font-size: 17px;
  letter-spacing: -0.3px;
  color: var(--text);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.blog-nav-brand::before {
  content: '';
  width: 24px;
  height: 24px;
  background: linear-gradient(135deg, var(--accent), var(--primary));
  border-radius: 6px;
  display: inline-block;
}
.blog-nav-cta {
  background: var(--primary);
  color: #fff;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
}
.blog-nav-cta:hover { background: var(--primary-light); }
.blog-container {
  max-width: 760px;
  margin: 0 auto;
  padding: 32px 24px 80px;
}
.blog-back {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 14px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 24px;
}
.blog-back:hover { color: var(--primary); }
.blog-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 16px;
}
.blog-meta-item { display: inline-flex; align-items: center; gap: 4px; }
.blog-h1 {
  font-size: 38px;
  line-height: 1.2;
  letter-spacing: -0.6px;
  font-weight: 800;
  margin-bottom: 12px;
}
@media (max-width: 600px) { .blog-h1 { font-size: 30px; } }
.blog-lead {
  font-size: 19px;
  color: var(--text-secondary);
  margin-bottom: 32px;
  line-height: 1.55;
}
.blog-toc {
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 18px 22px;
  margin-bottom: 32px;
}
.blog-toc-title {
  text-transform: uppercase;
  font-size: 12px;
  letter-spacing: 1px;
  color: var(--text-secondary);
  margin-bottom: 8px;
  font-weight: 700;
}
.blog-toc ol { padding-left: 20px; }
.blog-toc li { margin-bottom: 4px; font-size: 15px; }
.blog-toc a { color: var(--text); text-decoration: none; }
.blog-toc a:hover { color: var(--primary); text-decoration: underline; }
.blog-h2 {
  font-size: 26px;
  font-weight: 700;
  margin: 48px 0 14px;
  padding-top: 12px;
  letter-spacing: -0.3px;
}
.blog-h3 {
  font-size: 19px;
  font-weight: 700;
  margin: 28px 0 8px;
}
.blog-container p {
  margin-bottom: 16px;
  font-size: 16.5px;
}
.blog-container ul,
.blog-container ol {
  margin: 0 0 18px 22px;
}
.blog-container li {
  margin-bottom: 6px;
  font-size: 16.5px;
}
.blog-container a { color: var(--primary); }
.blog-container a:hover { text-decoration: underline; }
.blog-container strong { font-weight: 700; }
.blog-container code {
  background: var(--bg-soft);
  border: 1px solid var(--border);
  padding: 1px 6px;
  border-radius: 4px;
  font-size: 14px;
  font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
}
.blog-callout {
  background: var(--primary-bg);
  border-left: 4px solid var(--primary);
  border-radius: var(--radius-sm);
  padding: 14px 18px;
  margin: 20px 0;
  font-size: 15.5px;
}
.blog-callout--warn {
  background: rgba(186,117,23,0.10);
  border-left-color: var(--warning);
}
.blog-callout strong { color: var(--primary); }
.blog-callout--warn strong { color: var(--warning); }
.blog-table {
  width: 100%;
  border-collapse: collapse;
  margin: 18px 0;
  font-size: 15px;
}
.blog-table th, .blog-table td {
  padding: 10px 12px;
  text-align: left;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}
.blog-table th {
  font-weight: 700;
  background: var(--bg-soft);
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.blog-cta {
  background: linear-gradient(135deg, var(--accent), var(--primary));
  color: #fff;
  border-radius: var(--radius-md);
  padding: 28px 24px;
  margin: 36px 0;
  text-align: center;
}
.blog-cta h3 { color: #fff; font-size: 22px; margin-bottom: 8px; font-weight: 800; }
.blog-cta p { color: rgba(255,255,255,0.92); font-size: 15.5px; margin-bottom: 16px; }
.blog-cta-btn {
  display: inline-block;
  background: #fff;
  color: var(--primary);
  padding: 12px 24px;
  border-radius: var(--radius-sm);
  font-weight: 700;
  text-decoration: none;
  font-size: 15px;
}
.blog-cta-btn:hover { background: rgba(255,255,255,0.92); }
.blog-cta-meta {
  font-size: 13px;
  color: rgba(255,255,255,0.85);
  margin-top: 10px;
  margin-bottom: 0;
}
.blog-faq summary {
  cursor: pointer;
  font-weight: 700;
  font-size: 16.5px;
  padding: 14px 0;
  border-top: 1px solid var(--border);
}
.blog-faq[open] summary { color: var(--primary); }
.blog-faq p { margin: 4px 0 14px; color: var(--text-secondary); font-size: 15.5px; }
.blog-related {
  background: var(--bg-soft);
  border-radius: var(--radius-md);
  padding: 22px;
  margin-top: 40px;
}
.blog-related h3 {
  font-size: 16px;
  text-transform: uppercase;
  letter-spacing: 0.6px;
  color: var(--text-secondary);
  margin-bottom: 12px;
  font-weight: 700;
}
.blog-related ul { margin: 0; padding-left: 20px; }
.blog-related li { margin-bottom: 6px; font-size: 15.5px; }
.blog-footer {
  text-align: center;
  padding: 24px;
  font-size: 13px;
  color: var(--text-secondary);
  border-top: 1px solid var(--border);
  margin-top: 40px;
}
.blog-footer a { color: var(--text-secondary); }