:root{color-scheme:light dark;--bg:#fff;--fg:#0b0b0c;--muted:#5b5f66;--line:#e4e4e7;--card:#f6f6f7;--accent:#e8590c}
@media(prefers-color-scheme:dark){:root{--bg:#000;--fg:#f4f4f5;--muted:#9ca0a8;--line:#26272b;--card:#111113;--accent:#ff8a3d}}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--fg);font:17px/1.6 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;-webkit-font-smoothing:antialiased}
a{color:var(--accent)}
.wrap{max-width:720px;margin:0 auto;padding:0 20px}
header{border-bottom:1px solid var(--line)}
header .wrap{display:flex;align-items:center;justify-content:space-between;height:60px}
.brand{font-weight:800;font-size:1.25rem;color:var(--fg);text-decoration:none;letter-spacing:-.02em}
.brand span{color:var(--accent)}
nav{display:flex;gap:18px;font-size:.95rem}nav a{color:var(--muted);text-decoration:none}nav a:hover{color:var(--fg)}
main{padding:40px 0 72px}
h1{font-size:2.2rem;line-height:1.15;margin:0 0 .3em;letter-spacing:-.03em}
h2{font-size:1.15rem;margin:2em 0 .3em}
p,li{margin:.5em 0}.lead{color:var(--muted);font-size:1.1rem}
.hero{padding:24px 0 8px}.hero h1{font-size:2.9rem}
.btns{display:flex;gap:12px;flex-wrap:wrap;margin:28px 0}
.btn{display:inline-block;padding:14px 22px;border-radius:14px;background:var(--fg);color:var(--bg);text-decoration:none;font-weight:600}
.btn.alt{background:var(--card);color:var(--fg);border:1px solid var(--line)}
.grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;margin-top:32px}
.card{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:18px}
.card h3{margin:0 0 .3em;font-size:1rem}.card p{margin:0;color:var(--muted);font-size:.95rem}
table{width:100%;border-collapse:collapse;font-size:.95rem}th,td{text-align:left;padding:8px 6px;border-bottom:1px solid var(--line);vertical-align:top}
footer{border-top:1px solid var(--line);color:var(--muted);font-size:.9rem}
footer .wrap{padding-top:24px;padding-bottom:40px;display:flex;flex-wrap:wrap;gap:8px 20px;justify-content:space-between}
footer a{color:var(--muted)}
@media(max-width:520px){.grid{grid-template-columns:1fr}.hero h1{font-size:2.3rem}nav{gap:12px;font-size:.85rem}}