:root{color-scheme:light dark;--bg:#fbfaf7;--fg:#171512;--muted:#6b665e;--card:#fff;--line:#e6e1d8;--accent:#b4441c}
@media (prefers-color-scheme:dark){:root{--bg:#12110f;--fg:#efebe4;--muted:#a39c90;--card:#1b1a17;--line:#2c2a26;--accent:#ee7b4f}}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--fg);font:17px/1.65 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif}
.wrap{max-width:960px;margin:0 auto;padding:0 16px}
header{border-bottom:1px solid var(--line)}header .wrap{display:flex;justify-content:space-between;align-items:center;height:64px}
.logo{font-weight:700;font-size:1.15rem;text-decoration:none;color:var(--fg)}nav a{margin-left:20px;color:var(--muted);text-decoration:none;font-size:.95rem}nav a:hover{color:var(--fg)}
.hero{padding:88px 0 56px}.hero h1{font-size:clamp(2.2rem,6vw,3.6rem);line-height:1.1;margin:0 0 16px;letter-spacing:-.02em}
.hero p{font-size:1.2rem;color:var(--muted);max-width:620px;margin:0}.badge{display:inline-block;margin-top:28px;padding:8px 14px;border:1px solid var(--line);border-radius:999px;font-size:.9rem;color:var(--muted)}
section{padding:40px 0}h2{font-size:1.6rem;margin:0 0 20px;letter-spacing:-.01em}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:16px}
.card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:22px}.card h3{margin:0 0 6px;font-size:1.05rem}.card p{margin:0;color:var(--muted);font-size:.97rem}
ul.plain{padding-left:20px}.doc{max-width:720px;padding:56px 0}.doc h1{font-size:2.2rem;margin:0 0 4px}.doc h2{font-size:1.2rem;margin:32px 0 8px}
.muted{color:var(--muted)}a{color:var(--accent)}
footer{border-top:1px solid var(--line);margin-top:48px;padding:28px 0;color:var(--muted);font-size:.9rem}footer a{color:var(--muted);margin-right:16px}