body{background:#f4f8fc;color:#18334d;font:18px system-ui;margin:0}main{max-width:520px;margin:12vh auto;padding:32px;background:white;border:1px solid #cbd8e5;border-radius:16px}label,input,button{display:block;margin:16px 0}input{box-sizing:border-box;width:100%;padding:12px}button{background:#145da0;color:white;border:0;border-radius:6px;padding:12px 24px}p{line-height:1.6}