:root{--bg:#f4f4f1;--panel:#fff;--fg:#1c1d1f;--muted:#666a70;--line:#dcddd8;--acc:#1f5f9e;--bad:#b42f25}
@media (prefers-color-scheme:dark){:root{--bg:#141517;--panel:#1d1f22;--fg:#ececea;--muted:#9a9ea4;--line:#33363a;--acc:#6fa8e0;--bad:#f08479}}
*{box-sizing:border-box}body{margin:0;min-height:100vh;display:grid;place-items:center;background:var(--bg);color:var(--fg);font:16px -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;padding:16px}
.box{width:min(380px,100%);background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:28px}
h1{font-family:Georgia,"Times New Roman",serif;font-weight:400;font-size:30px;margin:0}.sub{color:var(--muted);margin:4px 0 20px;font-size:14px}
label{display:block;font-size:13px;color:var(--muted);margin-bottom:6px}
input{width:100%;font:inherit;padding:10px 12px;border:1px solid var(--line);border-radius:8px;background:var(--bg);color:var(--fg)}
input:focus{outline:2px solid var(--acc);outline-offset:1px}
button{margin-top:14px;width:100%;font:inherit;font-weight:600;padding:10px;border:0;border-radius:8px;background:var(--acc);color:#fff;cursor:pointer}
.err{color:var(--bad);font-size:14px;margin:0 0 12px}.foot{color:var(--muted);font-size:12px;margin:18px 0 0;text-align:center}
.bar{height:5px;border-radius:3px;background:var(--acc);width:48px;margin-bottom:18px}
p{line-height:1.5}