:root{--blue:#2f6bff;--blue-strong:#1d4fd8;--navy:#14213d;--bg:#f4f6fc;--surface:#fff;--surface-2:#e9eefb;--text:#14213d;--muted:#4b5670;--border:#d9e0f2;--accent-bg:#dce6ff;--radius:16px;--maxw:1080px;--prose:700px;color-scheme:light}@media (prefers-color-scheme:dark){:root:not([data-theme=light]){--blue:#7ea3ff;--blue-strong:#a9c1ff;--bg:#0e1526;--surface:#172038;--surface-2:#1e2a48;--text:#eef2ff;--muted:#aab4cf;--border:#2a3759;--accent-bg:#223160;color-scheme:dark}}*{box-sizing:border-box}html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}body{background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased;margin:0;font:400 1.0625rem/1.65 system-ui,-apple-system,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif}img,svg{max-width:100%;height:auto}a{color:var(--blue-strong);text-underline-offset:3px}a:hover{text-decoration-thickness:2px}:focus-visible{outline:3px solid var(--blue);outline-offset:3px;border-radius:4px}.wrap{width:min(100% - 32px, var(--maxw));margin-inline:auto}.skip{background:var(--surface);z-index:10;border-radius:8px;padding:8px 14px;position:absolute;top:8px;left:-999px}.skip:focus{left:8px}header.site{border-bottom:1px solid var(--border);background:var(--surface)}header.site .wrap{flex-wrap:wrap;align-items:center;gap:16px;min-height:64px;padding-block:8px;display:flex}.brand{color:var(--text);align-items:center;gap:10px;margin-right:auto;font-size:1.15rem;font-weight:750;text-decoration:none;display:flex}.brand img{border-radius:9px}nav.main{flex-wrap:wrap;align-items:center;gap:4px 18px;display:flex}nav.main a{color:var(--muted);padding:6px 2px;font-weight:550;text-decoration:none}nav.main a:hover,nav.main a[aria-current=page]{color:var(--text);text-decoration:underline}.lang{border:1px solid var(--border);color:var(--text);border-radius:999px;padding:4px 12px;font-weight:600;text-decoration:none}main{padding-block:40px 72px}h1,h2,h3{letter-spacing:-.01em;color:var(--text);line-height:1.2}h1{margin:0 0 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