:root{color-scheme:light dark;--bg:#f9f9f7;--card:#fcfcfb;--fg:#0b0b0b;--mut:#52514e;--line:rgba(11,11,11,.12);--acc:#2a78d6}
@media (prefers-color-scheme:dark){:root{--bg:#0d0d0d;--card:#1a1a19;--fg:#f0efec;--mut:#c3c2b7;--line:rgba(255,255,255,.12);--acc:#3987e5}}
*{box-sizing:border-box}body{margin:0;min-height:100vh;display:grid;place-items:center;background:var(--bg);color:var(--fg);font:15px/1.5 system-ui,-apple-system,"Segoe UI",sans-serif}
form{width:min(360px,92vw);background:var(--card);border:1px solid var(--line);border-radius:14px;padding:28px;display:grid;gap:12px}
h1{margin:6px 0 0;font-size:22px}.sub{margin:0;color:var(--mut);font-size:13px}.msg{margin:0;min-height:20px;color:#d03b3b;font-size:13px}
label{display:grid;gap:4px;font-size:13px;color:var(--mut)}
input{font:inherit;padding:10px 12px;border:1px solid var(--line);border-radius:8px;background:transparent;color:var(--fg)}
input:focus{outline:2px solid var(--acc);outline-offset:1px}
button{font:inherit;font-weight:600;padding:11px;border:0;border-radius:8px;background:var(--acc);color:#fff;cursor:pointer;margin-top:6px}