:root{font-family:system-ui,-apple-system,"Segoe UI",sans-serif;color:#102f3b;background:#f6f8f6;line-height:1.7}*{box-sizing:border-box}body{margin:0}header,main,footer{max-width:900px;margin:auto;padding:24px}header{display:flex;justify-content:space-between;gap:20px;align-items:center;border-bottom:1px solid #dce5e2}a{color:#087f75}header a{font-weight:700;text-decoration:none}main{padding-top:40px;padding-bottom:64px}h1{font-size:clamp(32px,6vw,52px);line-height:1.15;letter-spacing:-1px}h2{font-size:22px;margin-top:36px}p,li{max-width:72ch}.lede{font-size:21px;color:#526973}.note{padding:20px;background:#ddf3eb;border-radius:16px}footer{font-size:14px;color:#526973;border-top:1px solid #dce5e2}.brand{font-size:22px}