html{color-scheme:light;font-family:system-ui,sans-serif;background:#f5f7fa;color:#17243b}body{margin:0}main{max-width:52rem;margin:12vh auto;padding:2rem}h1{font-size:clamp(2rem,6vw,3.5rem);line-height:1.15}p{line-height:1.6}:focus-visible{outline:3px solid #164bb8;outline-offset:4px}