*{box-sizing:border-box}body{margin:0;min-height:100vh;display:grid;place-items:center;
font:15px/1.4 system-ui,sans-serif;background:#f3f1ec;color:#222}.card{background:#fff;padding:32px 36px;
border-radius:12px;box-shadow:0 8px 30px rgba(0,0,0,.08);width:min(360px,92vw)}h1{margin:0;font-size:22px}
.sub{margin:4px 0 20px;color:#777}label{display:block;margin:12px 0;font-size:13px;color:#555}
input{display:block;width:100%;margin-top:4px;padding:9px 10px;border:1px solid #ccc;border-radius:7px;font-size:15px}
button{width:100%;margin-top:16px;padding:10px;border:0;border-radius:7px;background:#2d5b9a;color:#fff;font-size:15px;cursor:pointer}
.err{background:#fde8e8;color:#922;padding:8px 10px;border-radius:7px;font-size:13px}