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h=l+p.height>=Math.floor(c.height);for(;f.length;){let[,b]=f[0];if(b-d<l||h)u=[...u,f.shift()];else break}for(;u.length;){let[,b]=u[u.length-1];if(b-d>=l&&!h)f=[u.pop(),...f];else break}return[u,f]},[[],[...s]]),Q((u,f)=>u[0]===f[0]&&u[1]===f[1])))))).pipe(m(([c,s])=>({prev:c.map(([u])=>u),next:s.map(([u])=>u)})),V({prev:[],next:[]}),Se(2,1),m(([c,s])=>c.prev.length<s.prev.length?{prev:s.prev.slice(Math.max(0,c.prev.length-1),s.prev.length),next:[]}:{prev:s.prev.slice(-1),next:s.next.slice(0,s.next.length-c.next.length)}))}function Si(e,{viewport$:t,header$:r}){return U(()=>{let n=new S;return n.subscribe(({prev:o,next:i})=>{for(let[a]of i)a.removeAttribute("data-md-state"),a.classList.remove("md-nav__link--active");for(let[a,[c]]of o.entries())c.setAttribute("data-md-state","blur"),c.classList.toggle("md-nav__link--active",a===o.length-1)}),ae("navigation.tracking")&&t.pipe(ue(n.pipe(se(1))),B("offset"),Qe(250),Ee(n)).subscribe(([,{prev:o}])=>{let 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