:root{--bg:#ffffff;--fg:#1f2933;--muted:#6b7280;--line:#e5e7eb;--card:#f5f6f8;--accent:#2f5d8a;--accent-fg:#ffffff}
@media (prefers-color-scheme:dark){:root{--bg:#14171a;--fg:#e6e8eb;--muted:#9aa3ad;--line:#2a2f35;--card:#1b1f23;--accent:#6aa0d4;--accent-fg:#10141a}}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--fg);font:16px/1.6 system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif}
.wrap{max-width:60rem;margin:0 auto;padding:0 1rem}
.top{border-bottom:1px solid var(--line)}
.bar{display:flex;align-items:center;justify-content:space-between;gap:1rem;min-height:3.5rem;flex-wrap:wrap}
.brand{display:flex;align-items:center;gap:.5rem;font-weight:600;color:var(--fg);text-decoration:none}
.mark{display:inline-block;width:1rem;height:1rem;background:var(--accent)}
nav a{color:var(--muted);text-decoration:none;margin-left:1.25rem;padding:.25rem 0}
nav a:hover,nav a.active{color:var(--fg);border-bottom:2px solid var(--accent)}
main{padding-top:2rem;padding-bottom:3rem;min-height:60vh}
h1{font-size:2rem;line-height:1.25;margin:0 0 1rem}
h2{font-size:1.25rem;margin:2rem 0 .5rem}
.hero{padding:2rem 0 1rem}
.lead{font-size:1.125rem;color:var(--muted);max-width:40rem}
.btn{display:inline-block;padding:.6rem 1.1rem;background:var(--accent);color:var(--accent-fg);text-decoration:none;border:1px solid var(--accent)}
.btn.alt{background:transparent;color:var(--fg);border-color:var(--line)}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(15rem,1fr));gap:1rem;margin-top:2rem}
.card{background:var(--card);border:1px solid var(--line);padding:1rem 1.25rem}
.card h3{margin:0 0 .5rem;font-size:1.05rem}
.card p{margin:0;color:var(--muted)}
table{border-collapse:collapse;width:100%;margin:1rem 0}
th,td{text-align:left;padding:.6rem .75rem;border-bottom:1px solid var(--line)}
th{color:var(--muted);font-weight:600;font-size:.9rem}
.muted{color:var(--muted)}
.ok{display:inline-block;padding:.35rem .75rem;background:var(--card);border:1px solid var(--line);border-left:4px solid #3a8a55}
.foot{border-top:1px solid var(--line);color:var(--muted);font-size:.9rem}
.foot .wrap{display:flex;justify-content:space-between;padding-top:1rem;padding-bottom:1rem}
.foot a{color:var(--muted)}
@media (max-width:30rem){nav a{margin:0 1rem 0 0}h1{font-size:1.6rem}}