:root{--bg:#fff;--fg:#14202b;--mut:#51606d;--pri:#0b5fff;--card:#f3f6fa;--bd:#dde4ec}
@media(prefers-color-scheme:dark){:root{--bg:#0e1419;--fg:#e8eef4;--mut:#9aa9b6;--pri:#6ea0ff;--card:#17202a;--bd:#263340}}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--fg);font:17px/1.6 system-ui,sans-serif}
.wrap{max-width:900px;margin:0 auto;padding:0 16px}a{color:var(--pri)}
.top{border-bottom:1px solid var(--bd)}.top .wrap{display:flex;flex-wrap:wrap;gap:8px 20px;align-items:center;padding:12px 16px}
.logo{font-weight:800;text-decoration:none;font-size:1.2rem}nav{display:flex;flex-wrap:wrap;gap:6px 16px;font-size:.92rem}
nav a[aria-current]{font-weight:700}h1{font-size:2.1rem;line-height:1.2;margin:1.5rem 0 .8rem}h2{margin-top:2rem}
.answer{background:var(--card);border-left:4px solid var(--pri);padding:14px 16px;border-radius:6px}
.lede{font-size:1.15rem;color:var(--mut)}.grid{list-style:none;padding:0;display:grid;gap:12px;grid-template-columns:repeat(auto-fit,minmax(240px,1fr))}
.grid li{background:var(--card);border:1px solid var(--bd);border-radius:8px;padding:14px}.grid h3{margin:0 0 4px;font-size:1.05rem}
.btn,button{display:inline-block;background:var(--pri);color:#fff;border:0;padding:10px 18px;border-radius:6px;text-decoration:none;font:inherit;cursor:pointer}
.btn.alt{background:transparent;color:var(--pri);border:1px solid var(--pri)}
details{border-bottom:1px solid var(--bd);padding:10px 0}summary{cursor:pointer;font-weight:600}
table{border-collapse:collapse;width:100%}td,th{border:1px solid var(--bd);padding:8px;text-align:left;vertical-align:top}
.cta{background:var(--card);padding:20px;border-radius:10px;margin:2rem 0}.cta label{display:block;margin:8px 0}
.cta input{display:block;width:100%;max-width:360px;padding:8px;font:inherit}
footer{border-top:1px solid var(--bd);color:var(--mut);font-size:.9rem;padding:16px 0}footer nav{margin-top:6px}