:root{--ink:#1c1c1e;--muted:#6b6b70;--line:#e4e4e7;--bg:#fbfbfa;--accent:#2f5d50}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.65 -apple-system,BlinkMacSystemFont,"Segoe UI",Helvetica,Arial,sans-serif}
.wrap{max-width:720px;margin:0 auto;padding:0 24px}
header{border-bottom:1px solid var(--line);padding:28px 0}
header .wrap{display:flex;align-items:baseline;justify-content:space-between;flex-wrap:wrap;gap:12px}
.logo{font-weight:600;font-size:18px;letter-spacing:-.01em;text-decoration:none;color:var(--ink)}
nav a{margin-left:20px;text-decoration:none;color:var(--muted);font-size:15px}
nav a:hover{color:var(--accent)}
main{padding:56px 0 72px}
h1{font-size:30px;line-height:1.25;letter-spacing:-.02em;margin:0 0 18px}
h2{font-size:19px;margin:38px 0 12px}
p{margin:0 0 16px}
.lead{font-size:18px;color:#3a3a3e}
ul{padding-left:20px}li{margin-bottom:8px}
.meta{color:var(--muted);font-size:14px}
a{color:var(--accent)}
footer{border-top:1px solid var(--line);padding:24px 0;color:var(--muted);font-size:14px}