:root{--bg:#efe6d2;--paper:#f9f4e7;--paper-2:#f2e9d5;--ink:#1f2530;--ink-2:#464c56;--muted:#615a4d;--s1:#2f6aa8;--s2:#b4791f;--line:#d9cbae;--gold:#7a5a1c;--gold-2:#c49b45;--lapis:#1e4a73;--emerald:#1d5c48;--verm:#a3392a;--hero:#13253a;--hero-ink:#f3ead6;--shadow:0 14px 34px -22px #462d0a8c;--radius:14px;--display:"Cormorant Garamond", "Iowan Old Style", Georgia, serif;--body:"EB Garamond", "Iowan Old Style", Georgia, serif;--arabic:"Amiri", "Geeza Pro", serif;--ui:"IBM Plex Sans", system-ui, -apple-system, sans-serif;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light}@media (prefers-color-scheme:dark){:root:not([data-theme=light]){--bg:#0e1218;--paper:#161b23;--paper-2:#1c222c;--ink:#ece3cf;--ink-2:#c3baa6;--muted:#a59e8c;--line:#2d3441;--gold:#d6b061;--gold-2:#e9c87a;--lapis:#82acd8;--emerald:#73c2a0;--verm:#e58472;--hero:#0b1620;--hero-ink:#efe5cf;--s1:#5b95d6;--s2:#b8862b;--shadow:0 14px 34px -22px #000000e6;--lightningcss-light: 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0}.thesis:before,.thesis:after{content:"❖";color:var(--gold-2);margin:12px 0;font-size:1rem;display:block}.pillar .num{font:700 2.4rem var(--arabic);color:var(--gold);line-height:1}.pillar a.jump{font:500 .8rem var(--ui);text-decoration:none}.gates{gap:16px;display:grid}.gate{grid-template-columns:112px 1fr;gap:22px;padding:20px 24px 18px 20px;display:grid}.arch{border:1.5px solid var(--gold-2);text-align:center;background:radial-gradient(circle at 50% 30%, color-mix(in oklab, var(--gold-2) 16%, transparent), transparent 70%);border-radius:56px 56px 8px 8px;place-items:center;height:132px;padding:14px 6px 10px;display:grid}.arch .n{font:700 1.5rem var(--arabic);color:var(--gold);line-height:1}.arch .ar{font-size:1.35rem;line-height:1.4}.arch small{font:500 .66rem var(--ui);letter-spacing:.08em;text-transform:uppercase;color:var(--muted);display:block}.gate.failed .arch{border-color:var(--verm)}.gate.failed .arch .n{color:var(--verm)}@media 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.ar{color:var(--gold);margin-inline-start:auto;font-size:1.05rem}.seal{text-align:center;place-items:center;gap:6px;display:grid}.seal svg{width:180px;height:180px;transition:transform .5s cubic-bezier(.2,.8,.2,1.2)}.seal.bump svg{transform:rotate(-8deg)scale(1.04)}.seal .verdict{font:600 1.3rem var(--display)}.seal .why{font:400 .85rem/1.4 var(--ui);color:var(--ink-2);min-height:3em}.trow{border:1px solid var(--line);background:var(--paper-2);border-radius:10px;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:8px 14px;padding:8px 12px;display:flex}.trow+.trow{margin-top:8px}.tlabel{font:500 .9rem var(--ui);align-items:baseline;gap:8px;display:inline-flex}.tlabel .ar{color:var(--gold);font-size:1.05rem}:root[lang=ar] .tlabel .ar{display:none}.seg{background:var(--paper);border:1px solid var(--line);border-radius:999px;padding:2px;display:inline-flex}.seg button{cursor:pointer;font:500 .76rem var(--ui);color:var(--ink-2);white-space:nowrap;background:0 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var(--ui);letter-spacing:.1em;text-transform:uppercase;color:var(--muted);padding:8px 8px 2px}.gate.partial .arch{border-color:var(--gold)}.gate.partial .arch .n{color:var(--gold)}@media (width<=700px){.tester{grid-template-columns:1fr}}.isnad{grid-template-columns:minmax(0,330px) 1fr;gap:28px;display:grid}.chain{flex-direction:column;align-items:center;gap:0;display:flex}.node{border:1px solid var(--line);background:var(--paper-2);cursor:pointer;text-align:start;border-radius:12px;grid-template-columns:1fr auto;align-items:center;gap:2px 10px;width:100%;padding:10px 14px;transition:border-color .2s,background .2s,opacity .3s;display:grid}.node .nm{font:600 1.12rem var(--display)}.node .rl{font:500 .7rem var(--ui);text-transform:uppercase;letter-spacing:.1em;color:var(--muted);grid-column:1}.node .ar{color:var(--gold);grid-area:1/2/span 2;font-size:1.15rem}.node.sel{border-color:var(--gold-2);box-shadow:0 0 0 3px color-mix(in oklab, var(--gold-2) 22%, transparent)}.node.top{background:color-mix(in oklab, var(--emerald) 10%, var(--paper-2));cursor:default}.node.book{background:color-mix(in oklab, var(--lapis) 8%, var(--paper-2))}.node[data-state=unknown] .nm{color:var(--verm)}.node[data-state=unknown]{border-style:dashed;border-color:var(--verm)}.node[data-state=missing]{opacity:.3;border-style:dotted}.link{background:var(--gold-2);width:2px;height:26px;position:relative}.link.broken{background:repeating-linear-gradient(var(--verm) 0 4px, transparent 4px 8px)}.link.broken:after{content:"✕";inset-inline-start:10px;font:700 .8rem var(--ui);color:var(--verm);position:absolute;top:3px}.states{flex-wrap:wrap;gap:6px;margin:12px 0 4px;display:flex}.chip{border:1px solid var(--line);background:var(--paper);cursor:pointer;font:500 .78rem var(--ui);color:var(--ink-2);border-radius:999px;padding:5px 11px}.chip[aria-pressed=true]{background:var(--ink);color:var(--paper);border-color:var(--ink)}.status{font:400 .92rem/1.45 var(--ui);border:1px solid color-mix(in oklab, var(--emerald) 40%, transparent);background:color-mix(in oklab, var(--emerald) 9%, transparent);border-radius:10px;margin-top:16px;padding:12px 14px}.status.bad{border-color:color-mix(in oklab, var(--verm) 45%, transparent);background:color-mix(in oklab, var(--verm) 9%, transparent)}.status b{font-weight:600}@media (width<=760px){.isnad{grid-template-columns:1fr}}.timeline{margin:18px 0 0;padding:0;list-style:none;position:relative}.timeline:before{content:"";inset-inline-start:10px;background:linear-gradient(var(--gold-2), var(--line));width:2px;position:absolute;top:6px;bottom:6px}.timeline li{padding:0 0 18px 36px;position:relative}.timeline li:before{content:"";inset-inline-start:4px;background:var(--paper);border:2px solid var(--gold-2);width:12px;height:12px;position:absolute;top:7px;transform:rotate(45deg)}.timeline .gen{font:600 .7rem var(--ui);letter-spacing:.12em;text-transform:uppercase;color:var(--gold)}.timeline h4{margin:2px 0;font-size:1.2rem}.timeline p{color:var(--ink-2);margin:0;font-size:1.02rem}.counter{padding:18px 18px 22px}.counter-controls{flex-wrap:wrap;align-items:center;gap:14px 26px;margin-bottom:10px;display:flex}.counter-controls label{font:500 .8rem var(--ui);color:var(--ink-2);align-items:center;gap:10px;display:flex}input[type=range]{accent-color:var(--gold);width:180px}.counter-controls output{font:700 1.1rem var(--ui);color:var(--ink);min-width:1.6em;display:inline-block}.pinch{flex-wrap:wrap;align-items:center;gap:6px;display:flex}.pinch span{font:500 .8rem var(--ui);color:var(--ink-2);margin-inline-end:4px}svg.tree{width:100%;height:auto;display:block}svg.tree .edge{fill:none;stroke:var(--gold-2);stroke-width:1.6px;opacity:.75}svg.tree .edge.pinched{stroke:var(--verm);opacity:.9}svg.tree .colname{font:600 11px var(--ui);fill:var(--muted);letter-spacing:.1em;text-transform:uppercase}svg.tree .nd{fill:var(--paper);stroke:var(--gold);stroke-width:1.6px}svg.tree .nd.root{fill:var(--emerald);stroke:var(--emerald)}svg.tree .nd.pin{fill:var(--verm);stroke:var(--verm)}svg.tree .city{font:500 10px var(--ui);fill:var(--ink-2)}svg.tree .fade{animation:.45s both fade}@keyframes fade{0%{opacity:0}to{opacity:1}}.classify{grid-template-columns:repeat(4,1fr);gap:8px;margin-top:14px;display:grid}.cls{border:1px solid var(--line);background:var(--paper-2);border-radius:12px;padding:10px 12px;transition:all .3s}.cls:not(.on) b,.cls:not(.on) .ar{color:var(--ink-2)}.cls .ar{color:var(--gold);font-size:1.4rem;line-height:1.3;display:block}.cls b{font:600 1.05rem var(--display);display:block}.cls small{font:400 .76rem/1.35 var(--ui);color:var(--muted)}.cls.on{opacity:1;border-color:var(--gold-2);background:color-mix(in oklab, var(--gold-2) 14%, var(--paper));box-shadow:var(--shadow);transform:translateY(-2px)}.conds{grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:8px;margin-top:14px;display:grid}.cond{font:400 .86rem var(--ui);border:1px solid var(--line);background:var(--paper-2);border-radius:10px;align-items:center;gap:8px;padding:8px 10px;display:flex}.cond .dot{background:var(--verm);border-radius:50%;flex:none;width:10px;height:10px}.cond.ok .dot{background:var(--emerald)}.cond button.toggle{background:0 0;border:0;width:auto;padding:0}.counter .note{font:400 .86rem/1.5 var(--ui);color:var(--ink-2);margin:12px 0 0}@media (width<=640px){.classify{grid-template-columns:repeat(2,1fr)}}.slip{padding:20px 22px}.slip-actions{flex-wrap:wrap;gap:8px;margin:6px 0 14px;display:flex}.btn.small{padding:7px 14px;font-size:.8rem}.btn.line{color:var(--ink);border-color:var(--line);background:0 0}.btn[disabled]{opacity:.4;cursor:default}.rows{gap:6px;display:grid}.row{border:1px solid #0000;border-radius:10px;grid-template-columns:28px minmax(0,1fr) minmax(0,1.2fr);align-items:center;gap:12px;padding:7px 10px;transition:all .3s;display:grid}.row .i{font:600 .74rem var(--ui);color:var(--muted);text-align:end}.row .path{font:500 .72rem var(--ui);flex-wrap:wrap;gap:4px;display:flex}.row .path span{background:var(--paper-2);border:1px solid var(--line);border-radius:6px;padding:2px 7px;transition:all .3s}.row .path span.ok{border-color:var(--emerald);color:var(--emerald)}.row .path span.bad{border-color:var(--verm);background:var(--verm);color:var(--paper)}.row .txt{font-size:1.02rem}.row mark{color:inherit;background:0 0;transition:all .3s}.slip.compared .row.odd{border-color:color-mix(in oklab, var(--verm) 50%, transparent);background:color-mix(in oklab, var(--verm) 7%, transparent)}.slip.compared .row.odd mark{background:color-mix(in oklab, var(--verm) 16%, transparent);color:var(--ink);box-shadow:inset 0 -2px 0 var(--verm);border-radius:3px;padding:0 2px}.slip.traced .row.ref{opacity:1;border-color:color-mix(in oklab, var(--emerald) 45%, transparent)}@media (width<=680px){.row{grid-template-columns:22px 1fr}.row .txt{grid-column:2}}.dots{grid-template-columns:repeat(30,1fr);gap:3px;margin:14px 0 8px;display:grid}.dots i{aspect-ratio:1;background:var(--emerald);opacity:.75;border-radius:50%;transition:background .4s,transform .4s}.dots i.out{background:var(--verm);opacity:1;transform:scale(1.25)}.cmp{gap:10px;display:grid}.cmp .card{padding:16px 20px}.cmp .cmp-h{font-size:1.22rem}.disclaimer{font:400 .84rem/1.5 var(--ui);color:var(--muted);border:1px dashed var(--line);border-radius:10px;margin-bottom:14px;padding:10px 14px}.drawer{top:0;inset-inline-end:0;z-index:70;background:var(--paper);border-inline-start:1px solid var(--line);visibility:hidden;flex-direction:column;width:min(420px,100%);transition:transform .35s cubic-bezier(.2,.7,.2,1),visibility 0s .35s;display:flex;position:fixed;bottom:0;transform:translate(100%)}.drawer.open{visibility:visible;transition-delay:0s;transform:none;box-shadow:-20px 0 40px -30px #0009}.drawer header{border-bottom:1px solid var(--line);justify-content:space-between;align-items:center;padding:16px 18px;display:flex}.drawer h3{font-size:1.5rem}.drawer input{border:1px solid var(--line);background:var(--paper-2);font:400 .92rem var(--ui);color:var(--ink);border-radius:10px;margin:12px 18px 4px;padding:10px 12px}.drawer dl{margin:0;padding:6px 18px 30px;overflow:auto}.drawer dt{font:600 1.1rem var(--display);justify-content:space-between;align-items:baseline;margin-top:14px;display:flex}.drawer dt .ar{color:var(--gold);font-size:1.2rem}.drawer dd{font:400 .88rem/1.5 var(--ui);color:var(--ink-2);margin:2px 0 0}.scrim{z-index:65;opacity:0;pointer-events:none;background:#00000059;transition:opacity .3s;position:fixed;inset:0}.scrim.on{opacity:1;pointer-events:auto}.player{inset-inline-end:16px;z-index:50;background:var(--ink);width:min(400px,100% - 32px);color:var(--paper);border-radius:14px;transition:transform .35s cubic-bezier(.2,.7,.2,1);position:fixed;bottom:16px;overflow:hidden;transform:translateY(130%);box-shadow:0 24px 50px -20px #000000b3}.player.open{transform:none}.player .frame{aspect-ratio:16/9;background:#000;width:100%}.player .frame iframe,.player #ytPlayer{border:0;width:100%;height:100%;display:block}.player .ph{font:500 .78rem var(--ui);align-items:center;gap:8px;padding:8px 10px 8px 14px;display:flex}.player .ph span{text-overflow:ellipsis;white-space:nowrap;opacity:.8;flex:1;overflow:hidden}.player .ph a{color:var(--gold-2);text-decoration:none}.player .x{cursor:pointer;color:var(--paper);background:0 0;border:0;padding:2px 6px;font-size:1.1rem}.player .err{font:400 .85rem var(--ui);padding:14px;display:none}.player.failed .err{display:block}.player.failed .frame{display:none}footer.site{border-top:3px double var(--gold-2);color:var(--muted);font:400 .88rem/1.6 var(--ui);margin-top:80px;padding:40px 0 60px}footer.site .ar{color:var(--gold);font-size:1.5rem}.viz-controls{border:1px solid var(--line);background:var(--paper-2);border-radius:12px;flex-wrap:wrap;gap:12px 28px;margin:16px 0 6px;padding:12px 14px;display:flex}.viz-controls label{font:500 .82rem var(--ui);color:var(--ink-2);flex-wrap:wrap;align-items:center;gap:10px;display:flex}.viz-controls output{font:600 .9rem var(--ui);color:var(--ink);min-width:4.5em}.tiles{grid-template-columns:repeat(3,1fr);gap:10px;margin:14px 0 6px;display:grid}.tile{border:1px solid var(--line);background:var(--paper);border-radius:12px;padding:12px 14px}.tile .lbl{font:500 .78rem var(--ui);color:var(--ink-2)}.tile .val{font:600 1.6rem/1.2 var(--ui);color:var(--ink);margin-top:4px}.tile .sub{font:400 .76rem var(--ui);color:var(--muted)}.viz-grid{margin-top:16px}.viz{min-width:0;margin:0;position:relative}.viz figcaption b{font:600 1.18rem var(--display);display:block}.viz figcaption span{font:400 .8rem var(--ui);color:var(--ink-2)}.viz .plot{margin-top:8px;position:relative}.viz svg{width:100%;height:auto;display:block;overflow:visible}.viz svg:focus-visible{outline:2px solid var(--gold-2);outline-offset:4px;border-radius:6px}.viz .grid line{stroke:var(--line);stroke-width:1px}.viz .axis text{font:400 11px var(--ui);fill:var(--muted)}.viz .axis .title{fill:var(--ink-2);font-weight:500}.viz .band{fill:var(--ink);opacity:.035}.viz .bandlbl{font:600 10px var(--ui);fill:var(--muted);letter-spacing:.06em;text-transform:uppercase}.viz .ln{fill:none;stroke-width:2px;stroke-linejoin:round;stroke-linecap:round}.viz .ln.s1{stroke:var(--s1)}.viz .ln.s2{stroke:var(--s2)}.viz .area{fill:var(--s1);opacity:.1}.viz .dot{stroke:var(--paper);stroke-width:2px}.viz .dot.s1{fill:var(--s1)}.viz .dot.s2{fill:var(--s2)}.viz .ann{font:500 11px var(--ui);fill:var(--ink-2)}.viz .annline{stroke:var(--ink-2);stroke-width:1px}.viz .cur{stroke:var(--gold-2);stroke-width:1px}.viz .curlbl{font:600 10px var(--ui);fill:var(--gold)}.viz .xh{stroke:var(--ink-2);stroke-width:1px;opacity:.5}.viz .endlbl{font:600 11px var(--ui);fill:var(--ink)}.legend{font:500 .78rem var(--ui);color:var(--ink-2);flex-wrap:wrap;gap:4px 16px;margin-top:8px;display:flex}.legend span{align-items:center;gap:6px;display:inline-flex}.k{border-radius:2px;width:14px;height:2px;display:inline-block}.k.s1{background:var(--s1)}.k.s2{background:var(--s2)}.vtip{pointer-events:none;z-index:5;background:var(--paper);border:1px solid var(--line);box-shadow:var(--shadow);font:400 .78rem/1.4 var(--ui);color:var(--ink-2);opacity:0;border-radius:10px;min-width:150px;padding:8px 10px;transition:opacity .12s;position:absolute}.vtip.on{opacity:1}.vtip .h{color:var(--ink);margin-bottom:4px;font-weight:600}.vtip .r{align-items:center;gap:8px;display:flex}.vtip .r b{color:var(--ink);font-weight:600}.tablebtn{cursor:pointer;font:600 .74rem var(--ui);letter-spacing:.08em;text-transform:uppercase;color:var(--gold);background:0 0;border:0;margin-top:8px;padding:4px 0}.vtable table{border-collapse:collapse;width:100%;font:400 .8rem var(--ui);margin-top:6px}.vtable th,.vtable td{text-align:end;border-bottom:1px solid var(--line);font-variant-numeric:tabular-nums;padding:4px 8px}.vtable th:first-child,.vtable td:first-child{text-align:start}.vtable th{color:var(--ink);font-weight:600}.vtable td{color:var(--ink-2)}.odds .note{font:400 .84rem/1.5 var(--ui);color:var(--ink-2);margin:14px 0 0}@media (width<=640px){.tiles{grid-template-columns:1fr}.tile .val{font-size:1.35rem}}#langBtn .short{display:none}#langBtn[lang=ar]{font-family:var(--arabic);font-size:.95rem}@media (width<=640px){#langBtn .full{display:none}#langBtn .short{display:inline}}.tr{opacity:.75;direction:ltr;unicode-bidi:isolate;font:400 .8em IBM Plex Sans,system-ui,sans-serif}.drawer dt .tr{font-size:.78rem}:root[lang=ar]{--display:"Amiri", "Noto Naskh Arabic", serif;--body:"Noto Naskh Arabic", "Amiri", "Geeza Pro", serif;--ui:"IBM Plex Sans Arabic", "IBM Plex Sans", system-ui, sans-serif}:root[lang=ar] body{font-size:1.08rem;line-height:1.9}:root[lang=ar] h1,:root[lang=ar] h2,:root[lang=ar] h3,:root[lang=ar] h4{font-weight:700;line-height:1.5}:root[lang=ar] .hero h1{font-weight:700;line-height:1.35}:root[lang=ar] *{letter-spacing:0!important}:root[lang=ar] em,:root[lang=ar] i,:root[lang=ar] blockquote.q{font-style:normal}:root[lang=ar] em{color:var(--gold)}:root[lang=ar] .hero h1 em{color:var(--gold-2)}:root[lang=ar] .toggle .ar,:root[lang=ar] .node .ar,:root[lang=ar] .cls .ar{display:none}[dir=rtl] .drawer{transform:translate(-100%)}[dir=rtl] .drawer.open{transform:none}svg.tree,.viz svg,.seal svg{direction:ltr}.i18n-pending body{visibility:hidden}@media (prefers-reduced-motion:reduce){*,:before,:after{transition:none!important;animation:none!important}html{scroll-behavior:auto}}