/* Blog pages. Tokens mirror src/index.css (@theme) so the blog matches the main site. */
:root {
  --bg: #111316;
  --surface-lowest: #0c0e11;
  --surface-low: #1a1c1f;
  --surface: #1e2023;
  --surface-high: #282a2d;
  --primary: #a9c7ff;
  --on-primary: #003063;
  --text: #e2e2e6;
  --text-muted: #c2c6d2;
  --outline: #424751;
  --font-body: 'Inter', sans-serif;
  --font-head: 'Space Grotesk', sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 88px; }
body {
  margin: 0;
  min-width: 320px;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }
img { display: block; max-width: 100%; height: auto; }

.wrap { max-width: 1120px; margin: 0 auto; padding: 0 16px; }
@media (min-width: 768px) { .wrap { padding: 0 32px; } }

.site-header {
  position: sticky; top: 0; z-index: 10;
  background: rgba(2, 6, 23, 0.6);
  backdrop-filter: blur(20px);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}
.header-row { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding-top: 16px; padding-bottom: 16px; }
.brand { font-family: var(--font-head); font-weight: 700; font-size: 20px; letter-spacing: -0.05em; color: #fff; }
.brand:hover { text-decoration: none; }
.nav { display: none; gap: 28px; font-family: var(--font-head); font-size: 14px; text-transform: uppercase; letter-spacing: -0.01em; }
.nav a { color: #94a3b8; }
.nav a:hover, .nav a.active { color: #fff; text-decoration: none; }
@media (min-width: 900px) { .nav { display: flex; } }

.cta {
  display: inline-block;
  background: var(--primary); color: var(--on-primary);
  font-family: var(--font-head); font-size: 12px; text-transform: uppercase; letter-spacing: 0.15em;
  padding: 10px 22px; transition: box-shadow 0.3s ease;
}
.cta:hover { text-decoration: none; box-shadow: 0 0 20px rgba(169, 199, 255, 0.4); }
.header-row .cta { display: none; }
@media (min-width: 640px) { .header-row .cta { display: inline-block; } }

.eyebrow { font-family: var(--font-head); font-size: 12px; text-transform: uppercase; letter-spacing: 0.2em; color: var(--primary); margin: 0 0 12px; }
h1, h2, h3 { font-family: var(--font-head); color: #fff; line-height: 1.2; letter-spacing: -0.02em; }
.lede { font-size: 19px; color: var(--text-muted); margin: 0; }

/* index */
.blog-hero { padding: 72px 0 40px; max-width: 760px; }
.blog-hero h1 { font-size: clamp(36px, 6vw, 60px); margin: 0 0 16px; }
.grid { display: grid; gap: 24px; padding-bottom: 96px; }
@media (min-width: 720px) { .grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1040px) { .grid { grid-template-columns: repeat(3, 1fr); } }
.card {
  display: flex; flex-direction: column;
  background: rgba(51, 53, 56, 0.4);
  border: 1px solid rgba(169, 199, 255, 0.1);
  color: var(--text); transition: border-color 0.2s ease, transform 0.2s ease;
}
.card:hover { text-decoration: none; border-color: rgba(169, 199, 255, 0.4); transform: translateY(-2px); }
.card img { aspect-ratio: 1200 / 630; object-fit: cover; width: 100%; }
.card-body { padding: 20px 22px 24px; }
.card h2 { font-size: 21px; margin: 0 0 10px; }
.card-body > p:last-child { color: var(--text-muted); font-size: 15px; margin: 0; }

/* article */
.article { max-width: 760px; padding: 48px 0 96px; }
.back { display: inline-block; font-family: var(--font-head); font-size: 13px; text-transform: uppercase; letter-spacing: 0.1em; color: #94a3b8; margin-bottom: 32px; }
.article h1 { font-size: clamp(32px, 5vw, 48px); margin: 0 0 20px; }
.meta { font-size: 14px; color: #94a3b8; margin: 20px 0 32px; }
.cover { width: 100%; aspect-ratio: 1200 / 630; object-fit: cover; border: 1px solid rgba(169, 199, 255, 0.1); margin-bottom: 40px; }

.toc { background: var(--surface-low); border-left: 2px solid var(--primary); padding: 20px 24px; margin-bottom: 40px; }
.toc p { font-family: var(--font-head); font-size: 12px; text-transform: uppercase; letter-spacing: 0.2em; color: var(--primary); margin: 0 0 8px; }
.toc ol { margin: 0; padding-left: 20px; }
.toc li { margin: 4px 0; }
.toc a { color: var(--text); }

.prose h2 { font-size: 30px; margin: 56px 0 16px; }
.prose h3 { font-size: 21px; margin: 36px 0 12px; }
.prose p, .prose li { color: var(--text); }
.prose strong { color: #fff; }
.prose ul, .prose ol { padding-left: 24px; }
.prose li { margin: 6px 0; }
.prose blockquote { margin: 24px 0; padding: 4px 20px; border-left: 2px solid var(--primary); color: var(--text-muted); }
.prose code { font-size: 0.9em; background: var(--surface-high); padding: 2px 6px; }
.prose hr { border: 0; border-top: 1px solid var(--outline); margin: 40px 0; }
.table-wrap { overflow-x: auto; margin: 24px 0; border: 1px solid var(--outline); }
.prose table { width: 100%; border-collapse: collapse; font-size: 15px; line-height: 1.5; }
.prose th, .prose td { text-align: left; padding: 10px 14px; border-bottom: 1px solid var(--outline); vertical-align: top; }
.prose th { font-family: var(--font-head); background: var(--surface); color: #fff; font-weight: 600; }
.prose tr:last-child td { border-bottom: 0; }

.tags { display: flex; flex-wrap: wrap; gap: 8px; margin: 48px 0 0; }
.tag { font-family: var(--font-head); font-size: 12px; letter-spacing: 0.05em; color: var(--text-muted); border: 1px solid var(--outline); padding: 4px 10px; }

.cta-box { margin-top: 56px; padding: 32px; background: rgba(51, 53, 56, 0.4); border: 1px solid rgba(169, 199, 255, 0.15); }
.cta-box h2 { font-size: 26px; margin: 0 0 12px; }
.cta-box p { color: var(--text-muted); margin: 0 0 20px; }

.site-footer { border-top: 1px solid rgba(66, 71, 81, 0.4); background: var(--surface-lowest); }
.footer-row { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px; padding-top: 28px; padding-bottom: 28px; font-size: 13px; color: #94a3b8; }