:root{color-scheme:dark;--bg:#090b0f;--header:#0d1015;--panel:#12151b;--line:#2b303a;--text:#f5f6f8;--link:#fff;--muted:#b7bdc8;--red:#d9222a;--eyebrow:#ff777c;--notice-border:#733438;--notice-bg:#1a1114;--max:880px}body.light-theme{color-scheme:light;--bg:#f7f2e8;--header:#fffaf0;--panel:#fffdf8;--line:#bbb2a3;--text:#211f1b;--link:#171512;--muted:#59544c;--red:#b81921;--eyebrow:#a50f17;--notice-border:#c76c70;--notice-bg:#fff0ef}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font:16px/1.65 system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;transition:background .18s ease,color .18s ease}a{color:var(--link)}header{border-bottom:1px solid var(--line);background:var(--header)}header div,main,footer{width:min(var(--max),calc(100% - 36px));margin:auto}header div{min-height:82px;display:flex;align-items:center;justify-content:space-between;gap:24px}header img{width:220px;max-width:55vw}header nav{display:flex;align-items:center;gap:18px}header a{text-decoration:none}.theme-toggle{width:40px;height:40px;flex:0 0 40px;border:1px solid var(--line);border-radius:999px;background:var(--panel);color:var(--text);font:700 1.1rem/1 system-ui;cursor:pointer}.theme-toggle:focus-visible,a:focus-visible{outline:3px solid var(--eyebrow);outline-offset:3px}main{padding:64px 0 80px}.eyebrow{color:var(--eyebrow);text-transform:uppercase;letter-spacing:.13em;font-weight:800;font-size:.78rem}h1{font-size:clamp(2.2rem,7vw,4.2rem);line-height:1.02;margin:.2em 0}h2{margin-top:2.2em;font-size:1.45rem}h3{margin-top:1.5em}.updated,.lede{color:var(--muted)}.notice{border:1px solid var(--notice-border);border-left:4px solid var(--red);background:var(--notice-bg);padding:18px 20px;margin:30px 0}.card{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:22px;margin:22px 0}ul{padding-left:22px}footer{border-top:1px solid var(--line);padding:28px 0 44px;color:var(--muted);display:flex;flex-wrap:wrap;gap:10px 22px}footer a{color:var(--muted)}@media(max-width:600px){header div{align-items:flex-start;flex-direction:column;padding:18px 0}header nav{width:100%;flex-wrap:wrap}main{padding-top:40px}}