:root{--teal:#078d87;--ink:#17324d;--muted:#647785;--line:#b8e5e5}*{box-sizing:border-box}body{margin:0;padding:50px 18px;color:var(--ink);background:#effafa;font:15px/1.7 Manrope,system-ui,sans-serif}main{max-width:820px;margin:auto;padding:38px;border:1px solid var(--line);border-radius:18px;background:#fff}a{color:var(--teal);text-decoration:none}h1{margin:14px 0;font-size:38px;line-height:1.15}h2{margin-top:28px;font-size:20px}p,li{color:var(--muted)}.back{font-weight:800}@media(max-width:600px){main{padding:25px}h1{font-size:30px}}