:root{font-family:'IBM Plex Sans',sans-serif;color:#17251f;background:#f3f6f2}body{margin:0}header,main,footer{max-width:900px;margin:auto;padding:24px}header{padding-top:48px}a{color:#165943;text-underline-offset:3px}.source-entry{background:#fff;border:1px solid #dce3dd;border-radius:12px;margin:18px 0;padding:24px}.source-entry h3{margin-top:0}.source-entry p{line-height:1.6}button{padding:10px 18px;cursor:pointer}a:focus-visible,button:focus-visible{outline:3px solid #f26322;outline-offset:3px}@media(max-width:600px){header,main,footer{padding:16px}.source-entry{padding:18px}}