body{font:18px/1.65 system-ui,sans-serif;max-width:760px;margin:40px auto;padding:0 24px;color:#173640;background:#f5f7f0}a{color:#005c5c}h1,h2{line-height:1.2}nav{display:flex;gap:20px;flex-wrap:wrap}footer{border-top:1px solid #b9c8c4;margin-top:40px;padding-top:16px}