:root{--fg:#1d1d1f;--muted:#6e6e73;--bg:#fbfbf8;--accent:#3a6b4f}
*{box-sizing:border-box}body{margin:0;font:17px/1.6 Georgia,"Times New Roman",serif;color:var(--fg);background:var(--bg)}
main{max-width:640px;margin:0 auto;padding:64px 24px}h1{font-size:30px;margin:0 0 4px}h2{font-size:20px;margin:40px 0 8px}
.sub{color:var(--muted);margin:0 0 32px}a{color:var(--accent)}nav a{margin-right:16px}footer{margin-top:64px;color:var(--muted);font-size:14px}
ul{padding-left:20px}li{margin:6px 0}