body{font-family:system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;margin:0;line-height:1.4;background:#0b0b0b;color:#fff}
.wrap{max-width:980px;margin:0 auto;padding:20px}
.hdr{padding:18px;background:#111;position:sticky;top:0}
.brand{color:#fff;text-decoration:none;font-weight:800}
.nav{margin-top:10px}
.nav a{color:#fff;text-decoration:none;margin-right:14px;font-weight:600;opacity:.9}
.nav a.on{opacity:1;text-decoration:underline}
.card{background:#141414;border:1px solid #222;border-radius:14px;padding:18px;margin:14px 0}
.btn{display:inline-block;background:#fff;color:#000;padding:10px 14px;border-radius:12px;text-decoration:none;font-weight:700;border:none;cursor:pointer}
input,textarea{width:min(560px,100%);padding:10px;border-radius:10px;border:1px solid #333;background:#0f0f0f;color:#fff}
.muted{color:#bbb}