body{margin:0;background:#f4f6fa;color:#20314c;font:16px/1.7 system-ui,sans-serif}a{color:#1549ba;text-underline-offset:3px}a:focus-visible{outline:3px solid #9ebefa}header,main,footer{max-width:860px;margin:auto;padding:24px}header{border-bottom:1px solid #d8e0e9}nav{display:flex;gap:20px;flex-wrap:wrap}main{padding-top:35px;padding-bottom:45px}h1{font-size:clamp(30px,6vw,44px);line-height:1.15;margin:0 0 20px}h2{font-size:22px;line-height:1.3;margin:32px 0 12px}p{margin:0 0 16px}.lead{font-size:19px;color:#53647a}.note,footer{font-size:14px;color:#53647a}code{overflow-wrap:anywhere}li{margin:8px 0}footer{border-top:1px solid #d8e0e9}strong{font-weight:650}@media(max-width:500px){header,main,footer{padding-left:20px;padding-right:20px}}