:root{color-scheme:light dark;--bg:#fff;--fg:#1c1c1e;--muted:#5b5b61;--accent:#1f7a4d;--line:#e3e3e6}
@media(prefers-color-scheme:dark){:root{--bg:#121214;--fg:#f2f2f3;--muted:#a5a5ac;--accent:#4cc38a;--line:#2a2a2e}}
*{box-sizing:border-box}body{margin:0;padding:0 16px 48px;background:var(--bg);color:var(--fg);font:16px/1.6 system-ui,sans-serif}
header.top,main,footer,.langs{max-width:760px;margin:0 auto}
header.top{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px;padding:16px 0}
nav{display:flex;gap:16px;align-items:center;flex-wrap:wrap}a{color:var(--accent)}.brand{font-weight:700;font-size:1.25rem;text-decoration:none;color:var(--fg)}
.btn{display:inline-block;background:var(--accent);color:var(--bg);padding:10px 18px;border-radius:10px;text-decoration:none;font-weight:600}
.langs{display:flex;gap:12px;font-size:.875rem}.langs [aria-current]{color:var(--muted);text-decoration:none}
h1{font-size:2rem;line-height:1.2;margin:32px 0 12px}h2{margin-top:32px}.lead{font-size:1.125rem;color:var(--muted)}
.cards{display:grid;gap:16px;margin-top:24px}.card{display:block;padding:20px;border:1px solid var(--line);border-radius:12px;text-decoration:none;color:var(--fg)}
footer{margin-top:48px;color:var(--muted);font-size:.875rem;border-top:1px solid var(--line);padding-top:16px}
@media(min-width:600px){.cards{grid-template-columns:1fr 1fr}}