:root{color-scheme:light dark;--bg:#f7f8fa;--paper:#fff;--ink:#191f25;--muted:#525e69;--line:#dce2e6;--accent:#087d86;--focus:#006b73}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font:17px/1.75 -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}a{color:var(--accent);text-underline-offset:4px}a:hover{text-decoration-thickness:2px}a:focus-visible,summary:focus-visible{outline:3px solid var(--focus);outline-offset:5px;border-radius:4px}header,main,footer{width:min(1080px,calc(100% - 48px));margin:auto}header{display:flex;align-items:center;justify-content:space-between;min-height:80px;gap:20px;border-bottom:1px solid var(--line)}.brand{display:flex;align-items:center;gap:12px;color:var(--ink);text-decoration:none;font-size:19px;font-weight:750;white-space:nowrap}.brand img{width:40px;height:40px;border-radius:10px}nav{display:flex;gap:24px;font-size:15px;flex-wrap:wrap}nav a{text-decoration:none}nav button{font:inherit;background:none;border:0;color:var(--accent);padding:0;cursor:pointer}nav button:focus-visible{outline:3px solid var(--focus);outline-offset:5px}main{padding:64px 0 80px}.hero{display:grid;grid-template-columns:1fr 160px;align-items:center;gap:32px;margin-bottom:56px}.hero img{width:160px;height:160px;border-radius:34px}.eyebrow{margin:0 0 12px;color:var(--accent);font-size:15px;font-weight:650}h1{font-size:clamp(36px,5vw,58px);line-height:1.15;letter-spacing:-.04em;margin:0 0 20px;max-width:800px}h2{font-size:25px;line-height:1.4;margin:32px 0 12px;letter-spacing:-.02em}p{margin:0 0 16px}.lead{max-width:690px;color:var(--muted);font-size:19px}.article{max-width:780px}.article p,.article li{color:var(--muted)}.article h2{color:var(--ink)}details{border-bottom:1px solid var(--line);padding:20px 0}summary{cursor:pointer;font-size:19px;font-weight:650;padding-right:12px}details p{margin:18px 0 6px;color:var(--muted)}.notice{border-left:3px solid var(--accent);padding-left:20px;margin:32px 0;color:var(--muted)}.meta{font-size:14px;color:var(--muted)}ol{padding-left:24px}footer{padding:28px 0 36px;border-top:1px solid var(--line);color:var(--muted);font-size:13px;display:flex;justify-content:space-between;gap:24px}footer p{max-width:720px}.skip{position:absolute;left:20px;top:-70px;background:var(--paper);padding:8px 16px}.skip:focus{top:12px}
@media(prefers-color-scheme:dark){:root:not([data-theme="light"]){--bg:#141a20;--paper:#1c242c;--ink:#eff3f6;--muted:#b8c3cc;--line:#35414b;--accent:#81dce0;--focus:#81dce0}}
:root[data-theme="dark"]{--bg:#141a20;--paper:#1c242c;--ink:#eff3f6;--muted:#b8c3cc;--line:#35414b;--accent:#81dce0;--focus:#81dce0}
@media(max-width:720px){header,main,footer{width:calc(100% - 36px)}header{align-items:flex-start;flex-direction:column;gap:12px;padding:18px 0}nav{gap:20px}main{padding:40px 0 56px}.hero{grid-template-columns:1fr 80px;gap:16px;margin-bottom:32px}.hero img{width:80px;height:80px;border-radius:18px}h1{font-size:36px}footer{flex-direction:column;gap:8px}.lead{font-size:17px}}