:root {
  --bg: #fbfbfa;
  --fg: #16181d;
  --muted: #5d6270;
  --line: #e4e5e9;
  --card: #ffffff;
  --accent: #2f5bd3;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #111317;
    --fg: #eceef2;
    --muted: #9aa0ad;
    --line: #262a32;
    --card: #181b21;
    --accent: #8aa8ff;
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font: 17px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, Roboto, sans-serif;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
.wrap { max-width: 860px; margin: 0 auto; padding: 0 20px; }

.top { border-bottom: 1px solid var(--line); }
.top__inner { display: flex; align-items: center; justify-content: space-between; gap: 16px; height: 64px; }
.brand { color: var(--fg); font-weight: 700; letter-spacing: -0.01em; }
.top nav { display: flex; gap: 20px; font-size: 15px; }
.top nav a { color: var(--muted); }

.hero { padding: 72px 20px 40px; }
.eyebrow { margin: 0 0 12px; color: var(--muted); font-size: 14px; letter-spacing: 0.02em; }
h1 { margin: 0; font-size: clamp(30px, 5vw, 44px); line-height: 1.15; letter-spacing: -0.02em; max-width: 20ch; }
.lead { margin: 20px 0 0; color: var(--muted); font-size: 19px; max-width: 60ch; }

.section { padding: 40px 20px; border-top: 1px solid var(--line); }
h2 { margin: 0 0 20px; font-size: 24px; letter-spacing: -0.01em; }
h3 { margin: 4px 0 8px; font-size: 21px; }

.cards { display: grid; gap: 16px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 24px; }
.card p { margin: 0 0 12px; color: var(--muted); }
.card__tag { font-size: 13px; text-transform: uppercase; letter-spacing: 0.06em; }
.link { font-weight: 600; }

.list { margin: 0; padding-left: 20px; }
.list li { margin-bottom: 10px; }

.details { display: grid; grid-template-columns: 160px 1fr; gap: 10px 20px; margin: 0; }
.details dt { color: var(--muted); }
.details dd { margin: 0; }

.prose { padding-top: 56px; padding-bottom: 56px; }
.prose h1 { max-width: none; margin-bottom: 8px; }
.prose h2 { margin: 36px 0 12px; font-size: 21px; }
.prose p, .prose li { color: var(--fg); }
.prose .meta { color: var(--muted); margin-top: 0; }

.foot { border-top: 1px solid var(--line); margin-top: 40px; }
.foot__inner { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 8px 24px; padding: 24px 20px; color: var(--muted); font-size: 14px; }
.foot p { margin: 0; }

@media (max-width: 560px) {
  .top nav { gap: 14px; }
  .hero { padding-top: 48px; }
  .details { grid-template-columns: 1fr; gap: 2px; }
  .details dd { margin-bottom: 12px; }
}