/* Drivee Blog — shared styles. Matches the desktop.html brand system. */
:root {
  --bg: #EEF2FB;
  --bg2: #E4EAF6;
  --paper: #FFFFFF;
  --ink: #0B1430;
  --ink2: #4A5267;
  --ink3: #8C95A7;
  --line: rgba(11,20,48,0.08);
  --line-s: rgba(11,20,48,0.05);
  --blue: #2D63F0;
  --blue-d: #1B45C2;
  --blue-s: #DCE6FB;
  --blue-50: #EAF0FD;
  --green: #16A34A;
  --amber: #E89B22;
  --red: #E1473D;
  --font: 'Plus Jakarta Sans', system-ui, sans-serif;
  --mono: 'JetBrains Mono', ui-monospace, monospace;
  --serif: 'IBM Plex Serif', Georgia, serif;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html, body {
  background: var(--bg); color: var(--ink);
  font-family: var(--font);
  -webkit-font-smoothing: antialiased;
}
body { min-height: 100vh; }
a { color: var(--blue); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ─────── Top nav ─────── */
.top {
  position: sticky; top: 0; z-index: 20;
  display: flex; align-items: center; justify-content: space-between;
  padding: 18px 32px;
  background: rgba(238, 242, 251, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line-s);
}
.top .brand {
  font-size: 22px; font-weight: 800; letter-spacing: -1px;
  color: var(--ink);
}
.top .brand .dot { color: var(--blue); }
.top .links { display: flex; gap: 24px; font-size: 14px; font-weight: 600; }
.top .links a { color: var(--ink2); }
.top .links a:hover { color: var(--ink); text-decoration: none; }
.top .cta {
  background: var(--ink); color: white;
  padding: 10px 18px; border-radius: 999px;
  font-weight: 700; font-size: 14px;
  transition: background 0.2s;
}
.top .cta:hover { background: var(--blue-d); text-decoration: none; }

/* ─────── Article wrapper ─────── */
.article-wrap {
  max-width: 760px; margin: 0 auto;
  padding: 56px 24px 96px;
}
.crumbs {
  font-family: var(--mono); font-size: 11px; font-weight: 700;
  letter-spacing: 1.5px; text-transform: uppercase;
  color: var(--ink3);
  margin-bottom: 24px;
}
.crumbs a { color: var(--ink2); }
.crumbs .sep { margin: 0 8px; color: var(--ink3); }

h1.article-title {
  font-family: var(--serif);
  font-size: 44px; font-weight: 700;
  line-height: 1.15; letter-spacing: -1px;
  color: var(--ink);
  margin-bottom: 20px;
}
.article-meta {
  display: flex; gap: 18px; align-items: center;
  font-size: 13px; color: var(--ink3);
  margin-bottom: 36px;
  padding-bottom: 28px;
  border-bottom: 1px solid var(--line);
}
.article-meta .author { font-weight: 600; color: var(--ink2); }
.article-meta .dot { width: 4px; height: 4px; background: var(--ink3); border-radius: 999px; }

.lead {
  font-family: var(--serif);
  font-size: 21px; line-height: 1.55;
  color: var(--ink2);
  margin-bottom: 32px;
}

.body h2 {
  font-family: var(--serif);
  font-size: 28px; font-weight: 700;
  margin: 48px 0 16px;
  color: var(--ink);
  letter-spacing: -0.5px;
}
.body h3 {
  font-size: 19px; font-weight: 700;
  margin: 32px 0 12px;
  color: var(--ink);
}
.body p {
  font-size: 17px; line-height: 1.7;
  color: var(--ink2);
  margin-bottom: 18px;
}
.body p strong, .body li strong { color: var(--ink); font-weight: 700; }
.body ul, .body ol {
  margin: 8px 0 24px 24px;
  font-size: 17px; line-height: 1.7;
  color: var(--ink2);
}
.body li { margin-bottom: 8px; }
.body a { color: var(--blue); font-weight: 600; }

/* Callout box */
.callout {
  background: var(--blue-50);
  border-left: 3px solid var(--blue);
  padding: 18px 22px;
  border-radius: 0 8px 8px 0;
  margin: 24px 0;
}
.callout strong { color: var(--ink); display: block; margin-bottom: 6px; font-size: 14px; text-transform: uppercase; letter-spacing: 1px; }
.callout p { font-size: 15px; margin: 0; color: var(--ink2); }

.warn {
  background: rgba(232, 155, 34, 0.08);
  border-left: 3px solid var(--amber);
}
.warn strong { color: #8A5A12; }

/* Inline CTA card */
.app-cta {
  background: var(--ink);
  color: white;
  padding: 32px 28px;
  border-radius: 18px;
  margin: 40px 0;
  text-align: center;
}
.app-cta h3 {
  color: white; font-size: 22px; font-weight: 700; margin-bottom: 8px;
}
.app-cta p {
  color: rgba(255,255,255,0.75); font-size: 15px; margin-bottom: 18px;
}
.app-cta a {
  display: inline-block;
  background: var(--blue); color: white;
  padding: 12px 24px; border-radius: 999px;
  font-weight: 700; font-size: 15px;
}
.app-cta a:hover { background: var(--blue-d); text-decoration: none; }

/* TOC */
.toc {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 22px 26px;
  margin: 32px 0 40px;
}
.toc h4 {
  font-family: var(--mono); font-size: 11px; font-weight: 800;
  letter-spacing: 1.5px; text-transform: uppercase;
  color: var(--ink3); margin-bottom: 12px;
}
.toc ol { list-style: decimal; margin: 0 0 0 18px; }
.toc li { margin-bottom: 6px; font-size: 15px; }
.toc a { color: var(--ink); font-weight: 500; }
.toc a:hover { color: var(--blue); }

/* Related articles */
.related {
  margin-top: 72px;
  padding-top: 40px;
  border-top: 1px solid var(--line);
}
.related h3 {
  font-family: var(--mono); font-size: 11px; font-weight: 800;
  letter-spacing: 1.5px; text-transform: uppercase;
  color: var(--ink3); margin-bottom: 16px;
}
.related-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 16px;
}
.related-card {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 20px 22px;
  transition: border-color 0.2s, transform 0.2s;
}
.related-card:hover { border-color: var(--blue); transform: translateY(-2px); text-decoration: none; }
.related-card .kicker {
  font-family: var(--mono); font-size: 10px; font-weight: 800;
  letter-spacing: 1.5px; text-transform: uppercase;
  color: var(--blue); margin-bottom: 8px;
}
.related-card h4 {
  font-family: var(--serif); font-size: 17px; font-weight: 700;
  color: var(--ink); line-height: 1.3;
}

/* Footer */
.foot {
  border-top: 1px solid var(--line);
  padding: 32px 24px;
  text-align: center;
  font-size: 13px; color: var(--ink3);
}
.foot a { color: var(--ink2); margin: 0 12px; }

/* ─────── Index page ─────── */
.index-hero {
  max-width: 920px; margin: 0 auto;
  padding: 80px 24px 40px;
  text-align: center;
}
.index-hero .eyebrow {
  font-family: var(--mono); font-size: 11px; font-weight: 800;
  letter-spacing: 2px; text-transform: uppercase;
  color: var(--blue); margin-bottom: 18px;
}
.index-hero h1 {
  font-family: var(--serif); font-size: 56px; font-weight: 700;
  letter-spacing: -1.5px; line-height: 1.05;
  color: var(--ink);
  margin-bottom: 18px;
}
.index-hero p {
  font-size: 19px; line-height: 1.55;
  color: var(--ink2);
  max-width: 560px; margin: 0 auto;
}

.index-grid {
  max-width: 920px; margin: 0 auto;
  padding: 24px 24px 96px;
  display: grid; gap: 18px;
}
.post-card {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 28px 32px;
  transition: border-color 0.2s, transform 0.2s;
  display: block;
}
.post-card:hover { border-color: var(--blue); transform: translateY(-2px); text-decoration: none; }
.post-card .kicker {
  font-family: var(--mono); font-size: 11px; font-weight: 800;
  letter-spacing: 1.5px; text-transform: uppercase;
  color: var(--blue); margin-bottom: 12px;
}
.post-card h2 {
  font-family: var(--serif); font-size: 28px; font-weight: 700;
  letter-spacing: -0.5px; line-height: 1.2;
  color: var(--ink); margin-bottom: 10px;
}
.post-card .dek {
  font-size: 16px; line-height: 1.5; color: var(--ink2);
  margin-bottom: 12px;
}
.post-card .meta {
  font-size: 13px; color: var(--ink3);
}
.post-card .meta .sep { margin: 0 8px; }

@media (max-width: 720px) {
  .top { padding: 14px 18px; }
  .top .links { display: none; }
  .article-wrap { padding: 36px 20px 72px; }
  h1.article-title { font-size: 32px; }
  .body h2 { font-size: 22px; }
  .body p, .body ul, .body ol { font-size: 16px; }
  .lead { font-size: 18px; }
  .related-grid { grid-template-columns: 1fr; }
  .index-hero { padding: 48px 20px 28px; }
  .index-hero h1 { font-size: 36px; letter-spacing: -1px; }
  .index-hero p { font-size: 16px; }
  .post-card { padding: 22px 22px; }
  .post-card h2 { font-size: 22px; }
}