:root{--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;color:#17212b;background:#f6f8fa;font-family:Arial,Helvetica,sans-serif}*{box-sizing:border-box}body{margin:0}main{max-width:72rem;min-height:100vh;margin:0 auto;padding:4rem 1.5rem}h1{margin-bottom:.5rem;font-size:clamp(2rem,5vw,3.5rem)}p{line-height:1.6}