*{box-sizing:border-box}body{margin:0;background:#fff;color:#405a53;font-family:'Source Sans 3',system-ui,sans-serif;line-height:1.75}.container{width:min(100% - 2rem,820px);margin:auto}main{padding:2rem 0}nav{display:flex;flex-wrap:wrap;gap:.5rem 1.2rem;padding-bottom:1.2rem;border-bottom:1px solid #c4e5da;margin-bottom:2rem}a{color:#107b72;text-decoration:none}a:hover{text-decoration:underline}h1{color:#093e3b;line-height:1.2;font-size:clamp(1.75rem,4vw,2.4rem);margin:1.5rem 0}p{margin:1rem 0}footer{border-top:1px solid #c4e5da;margin-top:2rem;padding-top:1rem;font-size:.85rem}a:focus-visible{outline:3px solid #107b72;outline-offset:3px}