:root{font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:#153b43;background:#fafdfc;line-height:1.65}body{margin:0}header,main,footer{max-width:52rem;margin:auto;padding:1.4rem}header{font-size:1.5rem;font-weight:750;border-bottom:1px solid #d4e6e4}main{padding-block:2.4rem}h1{font-size:clamp(2rem,5vw,3rem);line-height:1.15}h2{line-height:1.3;margin-top:2rem}a{color:#006d70;text-underline-offset:.2em}a:focus-visible{outline:3px solid #d58224;outline-offset:4px}footer{border-top:1px solid #d4e6e4;font-size:.95rem}p{max-width:70ch}