:root{
  --bg:#f7f8fb;
  --surface:#ffffff;
  --text:#172033;
  --muted:#5f6b7a;
  --line:#dde3ea;
  --accent:#2457d6;
  --accent2:#193f9e;
  --soft:#eef3ff;
  --max:1120px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--text);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;line-height:1.65}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}
img{max-width:100%}
.wrap{width:min(var(--max),calc(100% - 32px));margin:auto}
.site-header{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20}
.nav{display:flex;align-items:center;justify-content:space-between;min-height:68px;gap:24px}
.brand{font-weight:800;color:var(--text);letter-spacing:-.02em}
.nav-links{display:flex;gap:18px;flex-wrap:wrap;font-size:14px}
.hero{padding:74px 0 54px;background:linear-gradient(180deg,#fff 0%,var(--bg) 100%)}
.hero h1{font-size:clamp(34px,5vw,60px);line-height:1.04;max-width:850px;margin:0 0 18px;letter-spacing:-.04em}
.hero p{font-size:20px;max-width:760px;color:var(--muted);margin:0 0 30px}
.btn{display:inline-block;background:var(--accent);color:#fff;font-weight:700;padding:13px 18px;border-radius:10px;margin-right:10px}
.btn:hover{background:var(--accent2);text-decoration:none}
.btn.secondary{background:#fff;color:var(--accent);border:1px solid var(--line)}
.section{padding:52px 0}
.section h2{font-size:32px;letter-spacing:-.025em;margin-top:0}
.grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.card{background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:24px;box-shadow:0 4px 18px rgba(18,35,58,.04)}
.card h3{margin-top:0}
.eyebrow{font-size:12px;font-weight:800;letter-spacing:.12em;text-transform:uppercase;color:var(--accent)}
.badge{display:inline-block;padding:5px 9px;border-radius:999px;background:var(--soft);color:var(--accent);font-size:12px;font-weight:700}
.prose{max-width:790px;margin:auto}
.prose h1{font-size:44px;line-height:1.1;letter-spacing:-.035em}
.prose h2{margin-top:42px;font-size:28px}
.prose h3{margin-top:28px}
.prose p,.prose li{color:#2f3a49}
.note{border-left:4px solid var(--accent);background:var(--soft);padding:14px 16px;margin:24px 0;border-radius:8px}
.table-wrap{overflow:auto}
table{border-collapse:collapse;width:100%;background:#fff}
th,td{padding:12px;border:1px solid var(--line);text-align:left;vertical-align:top}
th{background:#f0f3f8}
.footer{padding:42px 0;border-top:1px solid var(--line);background:#fff;margin-top:48px;color:var(--muted);font-size:14px}
.footer-links{display:flex;gap:15px;flex-wrap:wrap;margin-top:10px}
.kicker{color:var(--muted);font-size:14px}
.checklist li{margin:8px 0}
.source-list{font-size:14px}
.warning{background:#fff7e8;border:1px solid #f2d39b;padding:14px 16px;border-radius:10px}
@media(max-width:850px){
  .grid{grid-template-columns:1fr}
  .nav{align-items:flex-start;padding:14px 0;flex-direction:column}
  .hero{padding-top:46px}
  .prose h1{font-size:36px}
}