:root{--bg:#fbfaf7;--fg:#171717;--muted:#6b6b66;--line:#e7e4dc;--accent:#1f4fd8;--accent-fg:#fff;--card:#fff}
@media (prefers-color-scheme:dark){:root{--bg:#121211;--fg:#f2f1ec;--muted:#a3a29b;--line:#2a2a27;--accent:#7b9cff;--accent-fg:#0b0b0a;--card:#1a1a18}}
*{box-sizing:border-box}html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--fg);font:16px/1.6 ui-sans-serif,system-ui,-apple-system,"Segoe UI",sans-serif}
a{color:inherit}.wrap{max-width:1040px;margin:0 auto;padding:0 20px}
header.top{display:flex;align-items:center;justify-content:space-between;height:64px}
.brand{font-weight:700;text-decoration:none;letter-spacing:-.01em}
nav a{margin-left:20px;text-decoration:none;color:var(--muted);font-size:15px}nav a:hover{color:var(--fg)}
.btn{display:inline-block;padding:10px 18px;border-radius:10px;background:var(--accent);color:var(--accent-fg);text-decoration:none;font-weight:600;border:1px solid var(--accent)}
.btn.ghost{background:transparent;color:var(--fg);border-color:var(--line)}
nav .btn{margin-left:20px;color:var(--accent-fg);padding:7px 14px;font-size:15px}
.hero{padding:88px 0 64px;text-align:center}
.hero h1{font-size:clamp(34px,6vw,60px);line-height:1.08;letter-spacing:-.03em;margin:0 auto 18px;max-width:16em}
.hero p{font-size:19px;color:var(--muted);max-width:36em;margin:0 auto 30px}
.hero .cta{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}
.note{font-size:14px;color:var(--muted);margin-top:14px}
section{padding:56px 0;border-top:1px solid var(--line)}
h2{font-size:28px;letter-spacing:-.02em;margin:0 0 8px}.lead{color:var(--muted);margin:0 0 28px;max-width:40em}
.grid{display:grid;gap:16px;grid-template-columns:repeat(auto-fit,minmax(250px,1fr))}
.card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:20px}
.card h3{margin:0 0 6px;font-size:17px}.card p{margin:0;color:var(--muted);font-size:15px}
.steps{counter-reset:s;list-style:none;padding:0;display:grid;gap:16px;grid-template-columns:repeat(auto-fit,minmax(220px,1fr))}
.steps li{counter-increment:s}.steps li:before{content:counter(s);display:inline-grid;place-items:center;width:28px;height:28px;border-radius:50%;background:var(--accent);color:var(--accent-fg);font-weight:700;font-size:14px;margin-bottom:8px}
.steps b{display:block}.steps span{color:var(--muted);font-size:15px}
details{border-bottom:1px solid var(--line);padding:14px 0}summary{cursor:pointer;font-weight:600}details p{color:var(--muted);margin:8px 0 0}
footer{border-top:1px solid var(--line);padding:28px 0;color:var(--muted);font-size:14px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px}
footer a{margin-right:16px}
/* account and legal pages */
.auth{max-width:400px;margin:56px auto 80px}.auth h1{font-size:28px;letter-spacing:-.02em;margin:0 0 6px}
.auth form{display:grid;gap:14px;margin-top:18px}
.auth label{display:grid;gap:6px;font-size:14px;font-weight:600}
.auth input{font:inherit;padding:10px 12px;border-radius:10px;border:1px solid var(--line);background:var(--card);color:var(--fg)}
.auth input:focus{outline:2px solid var(--accent);outline-offset:1px}
.auth button.btn{cursor:pointer;font:inherit;font-weight:600;width:100%}
.auth button.btn:disabled{opacity:.5;cursor:not-allowed}
.auth .note{text-align:center}.auth .note a{color:var(--accent)}
.notice{margin:0;padding:10px 12px;border-radius:10px;font-size:14px;border:1px solid var(--line)}
.notice.error{border-color:#c0392b;color:#c0392b}.notice.ok{border-color:#2e8b57;color:#2e8b57}
.legal{max-width:720px;margin:40px auto 80px}.legal h1{font-size:30px;letter-spacing:-.02em}.legal h2{font-size:18px;margin:26px 0 4px}.legal p{color:var(--muted)}
.draft{border:1px dashed var(--accent);border-radius:10px;padding:10px 12px;color:var(--fg)!important}
[hidden]{display:none!important}