:root{--bg:#0b0f14;--panel:#121923;--line:#1f2a38;--text:#e6edf3;--muted:#8b98a8;--accent:#3ddc97}
@media (prefers-color-scheme:light){:root{--bg:#f6f8fa;--panel:#fff;--line:#d8dee4;--text:#1b2430;--muted:#5b6674;--accent:#0a8f5b}}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--text);font:17px/1.6 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif}
a{color:inherit}
.top{display:flex;justify-content:space-between;align-items:center;gap:16px;padding:16px max(16px,calc((100% - 960px)/2));border-bottom:1px solid var(--line)}
.brand{font:700 18px ui-monospace,SFMono-Regular,Consolas,monospace;text-decoration:none}
.mark{color:var(--accent)}
nav{display:flex;gap:20px}
nav a{color:var(--muted);text-decoration:none}
nav a:hover{color:var(--text)}
main{max-width:960px;margin:0 auto;padding:0 16px}
.hero{padding:72px 0 40px}
.kicker{margin:0 0 8px;color:var(--accent);font:600 13px ui-monospace,Consolas,monospace;text-transform:uppercase;letter-spacing:.08em}
h1{margin:0 0 16px;font-size:clamp(40px,8vw,72px);line-height:1.05;letter-spacing:-.02em}
.lead{max-width:36em;margin:0 0 24px;color:var(--muted);font-size:20px}
.btn{display:inline-block;padding:10px 20px;border-radius:8px;background:var(--accent);color:#04120c;font-weight:600;text-decoration:none}
.btn:hover{filter:brightness(1.1)}
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:16px;padding:16px 0 64px}
.cards article{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:20px}
.cards h2{margin:0 0 8px;font-size:18px}
.cards p{margin:0;color:var(--muted);font-size:15px}
footer{border-top:1px solid var(--line);padding:24px 16px;text-align:center;color:var(--muted);font-size:14px}
footer p{margin:0}