:root{font-family:Arial,sans-serif;color:#173c66;background:#f5f7fb}body{margin:0;display:grid;min-height:100vh;place-items:center}main{max-width:620px;padding:48px 32px}.brand{font-weight:700;color:#e46d21;font-size:22px}h1{font-size:38px;line-height:1.15}p{font-size:18px;line-height:1.6}footer{margin-top:48px;color:#69788b;font-size:14px}