:root{--navy:#4533cf;--bg:#f4f5fb;--ink:#151a3c;--dim:#6a7192;--line:#e1e4f0;--risk:#b42318;--go:#0b7a4b}
*{box-sizing:border-box}body{margin:0;min-height:100vh;display:grid;place-items:center;background:var(--bg);color:var(--ink);font:15px/1.45 -apple-system,BlinkMacSystemFont,"Segoe UI",Inter,sans-serif}
main{width:min(400px,92vw);background:#fff;border:1px solid var(--line);border-radius:18px;overflow:hidden;box-shadow:0 8px 30px rgba(31,36,90,.12)}
header{background:linear-gradient(135deg,#4a37d6,#3b2bb8);padding:22px 28px}header img{height:34px;display:block}
form{padding:26px 28px 28px;display:grid;gap:16px}h1{font-size:18px;margin:0}
label{display:grid;gap:6px;font-weight:600;font-size:13px}
input{font:inherit;padding:10px 12px;border:1px solid var(--line);border-radius:10px;background:#fff;color:var(--ink)}
input:focus{outline:2px solid #cfc9fb;outline-offset:1px}
button{font:inherit;font-weight:600;padding:12px;border:0;border-radius:10px;background:var(--navy);color:#fff;cursor:pointer}
.err{color:var(--risk);margin:0;font-size:14px}.note{color:var(--dim);font-size:12.5px;margin:0}
@media (prefers-color-scheme:dark){:root{--bg:#0f1226;--ink:#e8ecf4;--dim:#9aa5b8;--line:#2a3550}main{background:#121a2e}input{background:#0d1526}}
[hidden]{display:none!important}.gone{padding:26px 28px;display:grid;gap:12px}
a{color:var(--navy)}