html{font-family:system-ui,sans-serif;color:#20252b;background:#fff;line-height:1.7}body{margin:0}header,main{max-width:72rem;margin:auto;padding:1.5rem}article{max-width:50rem;margin:auto}h1{font-size:clamp(2rem,5vw,3rem);line-height:1.2;overflow-wrap:anywhere}img{max-width:100%;height:auto}pre,table{display:block;overflow:auto}pre{background:#f3f5f7;padding:1rem}a{color:#175eb0}nav{display:flex;flex-wrap:wrap;gap:1rem}th,td{padding:.5rem;border:1px solid #d7dce1}blockquote{border-left:3px solid #d7dce1;padding-left:1rem}li{margin-bottom:.8rem}