html{font-family:system-ui,sans-serif;background:#f3f5f7;color:#172638}body{margin:0;padding:24px}main{max-width:520px;margin:8vh auto;background:white;border-radius:16px;padding:32px;box-shadow:0 8px 30px #17263814}h1{font-size:28px}label{display:block;font-weight:600;margin-bottom:8px}input{box-sizing:border-box;width:100%;padding:12px;border:1px solid #687789;border-radius:6px;font-size:16px}button{margin-top:18px;padding:12px 18px;background:#174975;color:white;border:0;border-radius:6px;font-size:16px;cursor:pointer}a{color:#174975}footer{margin-top:32px;font-size:14px;line-height:1.5;color:#4d5d6e}p{line-height:1.6}