:root{--ink:#17191d;--dim:#5e6470;--line:#dfe3ea;--paper:#f7f8fa;--card:#fff;--accent:#1d4ed8}*{box-sizing:border-box}body{margin:0;color:var(--ink);background:var(--paper);font:16px/1.7 ui-sans-serif,system-ui,-apple-system,Segoe UI,sans-serif}a{color:var(--accent)}header,main,footer p{width:min(48rem,calc(100% - 2.5rem));margin-inline:auto}header{padding:1.2rem 0;border-bottom:1px solid var(--line)}.brand{color:var(--ink);font-size:1.1rem;text-decoration:none}main{margin-block:3rem 5rem;padding:2rem;background:var(--card);border:1px solid var(--line);border-radius:12px}h1{margin:0 0 .2rem;font-size:2rem;line-height:1.2}h2{margin:2rem 0 .4rem;font-size:1.18rem}p,li{color:#30343c}.updated{margin-top:0;color:var(--dim);font-size:.9rem}footer{border-top:1px solid var(--line)}footer p{padding:1rem 0;color:var(--dim);font-size:.85rem}@media(prefers-color-scheme:dark){:root{--ink:#edf0f5;--dim:#a5acb8;--line:#353b46;--paper:#13161a;--card:#1a1e24;--accent:#8aacf8}p,li{color:#d6d9df}}