:root{font-family:Arial,sans-serif;color:#192239;background:#f4f6fa}body{margin:0;padding:24px}main{max-width:460px;margin:12vh auto;background:white;padding:28px;border-radius:18px;border:1px solid #dbe2f0}h1{font-size:26px;line-height:1.3}p{font-size:16px;line-height:1.6}a{color:#2b49e9}button{font:600 16px Arial;padding:12px 20px;background:#2b49e9;color:white;border:0;border-radius:9px;cursor:pointer}
