*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Helvetica,Arial,sans-serif;line-height:1.65;color:#1a202c;background:#f7fafc}
.topbar{background:#0f172a;color:#e2e8f0;border-bottom:1px solid #1e293b}
.topbar-inner{max-width:880px;margin:0 auto;padding:18px 24px;display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:12px}
.brand{font-weight:700;font-size:18px;letter-spacing:.3px;color:#fff;text-decoration:none}
.brand span{color:#60a5fa}
.nav a{color:#cbd5e1;text-decoration:none;margin-left:20px;font-size:14px}
.nav a:hover{color:#fff}
main{max-width:880px;margin:0 auto;padding:48px 24px 80px}
.doc{background:#fff;border:1px solid #e2e8f0;border-radius:10px;padding:40px 48px;box-shadow:0 1px 2px rgba(0,0,0,.04)}
.eyebrow{font-size:12px;text-transform:uppercase;letter-spacing:.12em;color:#64748b;margin:0 0 8px}
.doc h1{font-size:30px;line-height:1.25;margin:0 0 8px;color:#0f172a;font-weight:700}
.meta{color:#64748b;font-size:14px;margin:0 0 28px}
.doc h2{font-size:19px;margin-top:32px;margin-bottom:10px;color:#0f172a;font-weight:600;border-bottom:1px solid #e2e8f0;padding-bottom:6px}
.doc h3{font-size:16px;margin-top:24px;margin-bottom:8px;color:#0f172a;font-weight:600}
.doc p{margin:0 0 14px}
.doc ul{margin:0 0 16px;padding-left:22px}
.doc li{margin-bottom:8px}
.doc a{color:#2563eb;text-decoration:underline}
.doc strong{color:#0f172a}
hr{border:none;border-top:1px solid #e2e8f0;margin:28px 0}
footer{max-width:880px;margin:0 auto;padding:24px;color:#64748b;font-size:13px;text-align:center}
footer a{color:#475569;text-decoration:none;margin:0 8px}
footer a:hover{color:#0f172a;text-decoration:underline}
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:18px;margin-top:8px}
.card{display:block;background:#fff;border:1px solid #e2e8f0;border-radius:10px;padding:24px;text-decoration:none;color:inherit;transition:border-color .15s,transform .15s}
.card:hover{border-color:#2563eb;transform:translateY(-1px)}
.card h3{margin:0 0 6px;font-size:17px;color:#0f172a}
.card p{margin:0;color:#64748b;font-size:14px}
.lede{font-size:16px;color:#334155;margin:0 0 28px}
@media (max-width:640px){.doc{padding:28px 22px}.doc h1{font-size:24px}}