:root{--bg:#f6f8fb;--surface:#fff;--ink:#0f172a;--ink-2:#334155;--ink-3:#64748b;--line:#e2e8f0;--brand:#1d4ed8;--brand-ink:#fff;--brand-soft:#e8efff;--bad:#b91c1c;--bad-soft:#fee2e2;color-scheme:light}
@media (prefers-color-scheme:dark){:root{--bg:#0b1220;--surface:#111a2b;--ink:#e5edf9;--ink-2:#c3cfe2;--ink-3:#8a9bb5;--line:#22314a;--brand:#7aa2ff;--brand-ink:#0b1220;--brand-soft:#16244a;--bad:#fca5a5;--bad-soft:#3b1414;color-scheme:dark}}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.55 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif}
a{color:var(--brand)}
main{max-width:1040px;margin:0 auto;padding:40px 16px 64px}
main.narrow{max-width:460px}
.top{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:28px}
.brand{font-weight:800;letter-spacing:.02em;text-decoration:none;color:var(--ink)}.brand b{color:var(--brand)}
h1{font-size:clamp(28px,4vw,40px);line-height:1.15;margin:0 0 10px}
.signin h1{font-size:26px}
.lead{color:var(--ink-2);max-width:720px;margin:0 0 6px}
.meta{color:var(--ink-3);font-size:14px}
.hero{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin:22px 0 8px}
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:10px 18px;border-radius:12px;background:var(--brand);color:var(--brand-ink);font-weight:600;text-decoration:none;border:0;font:inherit;font-weight:600;cursor:pointer}
.btn.quiet{background:var(--brand-soft);color:var(--brand)}
.btn:focus-visible,input:focus-visible{outline:3px solid var(--ink);outline-offset:2px}
.grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin-top:28px}
.card{background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:22px;display:flex;flex-direction:column;gap:10px;min-width:0}
.card h2{font-size:18px;margin:0}.card p{margin:0;color:var(--ink-2)}
.card ul{margin:0;padding-left:18px;color:var(--ink-2)}
.signin form{display:grid;gap:8px;margin-top:6px}
.signin label{font-weight:600;font-size:14px}
.signin input{font:inherit;padding:10px 12px;border-radius:10px;border:1px solid var(--line);background:var(--bg);color:var(--ink);min-height:44px;width:100%}
.signin button{margin-top:10px}
.error{background:var(--bad-soft);color:var(--bad);border-radius:10px;padding:10px 12px;margin:4px 0 0;font-size:14px}
.badge{display:inline-block;font-size:12px;font-weight:700;letter-spacing:.04em;text-transform:uppercase;color:var(--ink-3)}
footer{margin-top:32px;color:var(--ink-3);font-size:14px}
@media (max-width:820px){.grid{grid-template-columns:minmax(0,1fr)}main{padding-top:24px}}
.doc{max-width:760px}.doc h2{font-size:19px;margin:28px 0 6px}.doc ul,.doc ol{padding-left:22px;color:var(--ink-2)}.doc p{color:var(--ink-2)}