:root{font-family:system-ui,"Malgun Gothic",sans-serif;color:#183866;background:#f3f7fb}*{box-sizing:border-box}body{margin:0}main{max-width:900px;margin:12vh auto;padding:40px 28px}h1{font-size:clamp(36px,6vw,64px);letter-spacing:-.05em;line-height:1.2}p{line-height:1.9;color:#476e97}.label{font-size:12px;letter-spacing:.2em;font-weight:700}button{margin-top:20px;border:0;border-radius:10px;padding:14px 22px;background:#183866;color:white;font:inherit;cursor:pointer}button:focus-visible{outline:3px solid #769bc1;outline-offset:4px}