:root{
  --paper:#ffffff;
  --ink:#111827;
  --muted:#6b7280;
  --line:#e5e7eb;
  --accent:#0f172a;
  --soft:#f9fafb;
  --max:1100px;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;color:var(--ink);background:var(--paper)}
a{color:inherit;text-decoration:none}
a:hover{opacity:.85}
.container{max-width:var(--max);margin:0 auto;padding:0 20px}
header{position:sticky;top:0;background:rgba(255,255,255,.9);backdrop-filter: blur(10px);border-bottom:1px solid var(--line);z-index:10}
.nav{display:flex;align-items:center;justify-content:space-between;padding:14px 0;gap:14px}
.brand{font-weight:700;letter-spacing:.5px}
.brand small{display:block;color:var(--muted);font-weight:500;letter-spacing:.2px;margin-top:2px}
.menu{display:flex;gap:16px;flex-wrap:wrap;align-items:center;justify-content:flex-end}
.menu a{color:var(--muted);font-size:14px;white-space:nowrap}
.menu a.active{color:var(--ink);font-weight:600}
.btn{display:inline-flex;align-items:center;gap:8px;border:1px solid var(--ink);padding:10px 14px;border-radius:999px;font-size:14px;font-weight:600;background:transparent}
.btn.secondary{border-color:var(--line);color:var(--ink);background:var(--soft)}
.hero{padding:54px 0 26px}
.kicker{color:var(--muted);font-size:14px;letter-spacing:.18em;text-transform:uppercase}
h1{font-size:44px;line-height:1.08;margin:12px 0 10px}
.lead{max-width:820px;color:var(--muted);font-size:18px;line-height:1.6}
.cta{display:flex;gap:12px;flex-wrap:wrap;margin-top:18px}
.section{padding:34px 0}
.section h2{font-size:22px;margin:0 0 14px}
.grid{display:grid;grid-template-columns:repeat(12,1fr);gap:14px}
.card{border:1px solid var(--line);border-radius:18px;padding:16px;background:#fff}
.card h3{margin:0 0 6px;font-size:16px}
.card p{margin:0;color:var(--muted);line-height:1.55;font-size:14px}
.span-6{grid-column:span 6}
.span-4{grid-column:span 4}
.span-12{grid-column:span 12}
.badge{display:inline-block;border:1px solid var(--line);color:var(--muted);font-size:12px;padding:6px 10px;border-radius:999px}
hr{border:none;border-top:1px solid var(--line);margin:0}
.footer{padding:22px 0;color:var(--muted);font-size:12.5px;line-height:1.6}
.footer .row{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}
.footer a{color:var(--muted);text-decoration:underline;text-underline-offset:3px}
.note{border-left:3px solid var(--line);padding-left:12px;color:var(--muted);font-size:13px;line-height:1.6}
.prose{max-width:880px}
.prose h2{margin-top:26px}
.prose p{color:var(--muted);line-height:1.75;font-size:15px;margin:10px 0}
.prose ul{color:var(--muted);line-height:1.75;font-size:15px}
.prose li{margin:6px 0}
.form{max-width:720px}
.input{width:100%;padding:12px 12px;border:1px solid var(--line);border-radius:12px;font-size:14px}
.label{font-size:13px;color:var(--muted);margin:10px 0 6px;display:block}
textarea.input{min-height:140px;resize:vertical}
.helper{font-size:12.5px;color:var(--muted);line-height:1.6}
@media (max-width:920px){
  h1{font-size:34px}
  .span-6,.span-4{grid-column:span 12}
  .menu{gap:12px}
}