:root{--ink:#182534;--muted:#526174;--line:#dbe4ed;--brand:#155ab4;--bg:#f7f9fc;--card:#fff}
*{box-sizing:border-box}
body{max-width:920px;margin:0 auto;padding:28px 22px 40px;font:17px/1.65 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;color:var(--ink);background:var(--bg)}
.masthead{display:flex;align-items:center;gap:18px;flex-wrap:wrap}
.masthead img{border-radius:18px;flex:0 0 auto}
.tag{font-size:14px;color:var(--muted);margin:0 0 4px}
h1{font-size:30px;line-height:1.2;margin:0}
nav{display:flex;gap:22px;flex-wrap:wrap;margin:20px 0;padding:12px 18px;background:var(--card);border:1px solid var(--line);border-radius:12px}
nav a{color:var(--brand);text-decoration:none;font-weight:600}
nav a:hover{text-decoration:underline}
main{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:30px}
h2{font-size:21px;margin:28px 0 10px;line-height:1.3}
main h2:first-child{margin-top:0}
ul{padding-left:22px;margin:10px 0}
li{margin:6px 0}
a{color:var(--brand)}
footer{font-size:14px;color:var(--muted);margin-top:22px;display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap}
footer p{margin:4px 0}
@media(max-width:520px){main{padding:22px 18px}h1{font-size:25px}}