:root{--bg:#eef1f4;--fg:#18202a;--muted:#5b6673;--accent:#1f4e79;--card:#ffffff;--line:#dbe1e8}
@media (prefers-color-scheme:dark){:root{--bg:#11151a;--fg:#e6ebf0;--muted:#98a3b0;--accent:#7fb0e0;--card:#192029;--line:#2b3440}}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--fg);font:17px/1.6 system-ui,-apple-system,Segoe UI,Roboto,sans-serif;padding:40px 16px}
main{max-width:640px;margin:0 auto}
.card{width:100%;background:var(--card);border:1px solid var(--line);border-radius:14px;padding:32px 28px;margin:0 0 16px}
.hero{text-align:center;padding:44px 28px}
.eyebrow{margin:0 0 8px;font-weight:600;font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted)}
h1{margin:0;font-size:clamp(30px,7vw,42px);line-height:1.15;letter-spacing:-.01em}
h2{margin:0 0 10px;font-size:20px}
h3{margin:16px 0 4px;font-size:17px}
p{margin:0 0 10px}
.lead{margin:10px 0 0;color:var(--muted)}
a{color:var(--accent)}
.rule{width:56px;height:2px;background:var(--accent);margin:22px auto 18px;opacity:.7}
.muted{color:var(--muted)}
footer{margin:24px 0 0;color:var(--muted);font-size:13px;text-align:center}