/* Library Twin c1: the theory content, scoped under .ltf. Generated by tools/build_css.py
   from the proposal v2 stylesheet; names are provisional and come from /assets/lt/js/names.js. */
.ltf{--measure:40rem;--lamp:#f0d9a8;--card:rgba(12,16,14,.78);--node:#0d1512;--glow:.9;--bg-2:#07100c;--mark:rgba(214,160,130,.34);--btn:#f0d9a8;--btn-ink:#1a140a;--serif:"Crimson Pro",Georgia,serif;--sans:"Inter",system-ui,sans-serif;--ease:cubic-bezier(.22,.8,.2,1)}
:root[data-appearance="light"] .ltf,:root[data-theme="light"] .ltf{--lamp:#7a4f16;--card:rgba(251,248,241,.9);--node:#fbf8f1;--glow:.35;--bg-2:#ebe3d3;--mark:rgba(196,128,98,.26);--btn:#1f3a30;--btn-ink:#f6f1e6}
@media (prefers-color-scheme:light){:root:not([data-appearance="dark"]):not([data-theme="dark"]) .ltf{--lamp:#7a4f16;--card:rgba(251,248,241,.9);--node:#fbf8f1;--glow:.35;--bg-2:#ebe3d3;--mark:rgba(196,128,98,.26);--btn:#1f3a30;--btn-ink:#f6f1e6}}
.ltf :focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:4px}
html.quiet .ltf *,html.quiet .ltf *::before,html.quiet .ltf *::after{animation:none!important;transition:none!important}
@media (prefers-reduced-motion:reduce){.ltf *,.ltf *::before,.ltf *::after{animation:none!important;transition:none!important}}
.ltf button:focus-visible,.ltf input:focus-visible,.ltf [tabindex]:focus-visible,.ltf summary:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:4px}
.ltf .sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.ltf .btn{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:.6rem 1.1rem;border-radius:999px;border:1px solid var(--rule);background:var(--card);color:var(--ink);font:600 .92rem/1.2 var(--sans);text-decoration:none;cursor:pointer}
.ltf .btn-primary{background:var(--btn);color:var(--btn-ink);border-color:transparent}
.ltf .btn[disabled]{opacity:.45;cursor:default}
.ltf .note{font-size:.82rem;color:var(--muted)}
.ltf .st{display:inline-block;font:600 .66rem/1.2 var(--sans);letter-spacing:.05em;text-transform:uppercase;padding:.22rem .45rem;border-radius:4px;border:1px solid currentColor;vertical-align:.12em;white-space:nowrap}
.ltf .st-theorem{color:var(--bg);background:var(--lamp);border-color:var(--lamp)}
.ltf .st-theory{color:var(--accent)}
.ltf .st-principle{color:var(--accent);border-style:double;border-width:3px;padding:.12rem .4rem}
.ltf .st-framework{color:var(--ink-2)}
.ltf .st-standard{color:var(--ink);border-radius:999px}
.ltf .st-model{color:var(--lamp)}
.ltf .st-analogy{color:var(--copper)}
.ltf .st-spec{color:var(--muted);border-style:dashed}
.ltf .st-plan{color:var(--ink-2);border-style:dotted}
.ltf .part{max-width:74rem;margin:0 auto;padding:clamp(3.5rem,7vw,6rem) 0;border-bottom:1px solid var(--rule);display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);column-gap:clamp(1.5rem,4vw,3.5rem);row-gap:1.8rem;align-items:start}
.ltf .part-head{grid-column:1/-1;max-width:48rem}
.ltf .part-n{font:italic 400 1.02rem var(--serif);color:var(--accent);margin:0 0 .5rem}
.ltf h2{font:400 clamp(1.9rem,3.6vw,3rem)/1.06 var(--serif);letter-spacing:-.012em;margin:0;text-wrap:balance}
.ltf h3{font:600 1.15rem var(--serif);margin:0 0 .6rem}
.ltf .thesis{font:400 clamp(1.05rem,1.4vw,1.22rem)/1.55 var(--serif);color:var(--ink-2);margin:.9rem 0 0;max-width:var(--measure)}
.ltf .step{min-width:0}
.ltf .step p{max-width:var(--measure)}
.ltf .step-k{font:600 .72rem/1.3 var(--sans);letter-spacing:.08em;text-transform:uppercase;color:var(--muted);margin:0 0 .6rem;display:flex;gap:.5rem;flex-wrap:wrap;align-items:center}
.ltf .step-demo{grid-column:1/-1}
.ltf .step-theory,.ltf .step-corr{color:var(--ink-2)}
.ltf math{font-family:"STIX Two Math","Cambria Math",math;font-size:1.25em;color:var(--ink)}
.ltf math[display="block"]{margin:.4rem 0 .9rem;padding:.7rem 0;overflow-x:auto;overflow-y:hidden}
.ltf .defs{display:grid;grid-template-columns:max-content 1fr;gap:.35rem .9rem;margin:.4rem 0 1rem;font-size:.9rem;color:var(--ink-2)}
.ltf .defs dt{font-family:var(--serif);font-size:1.02rem;color:var(--ink)}
.ltf .defs dd{margin:0}
.ltf .inwords{font-size:.9rem;padding:.7rem .9rem;border-left:2px solid var(--lamp);background:var(--card)}
.ltf .chain{font:400 1.35rem/1.6 var(--serif);letter-spacing:.01em}
.ltf .chain span{color:var(--accent);margin:0 .35rem}
.ltf .demo{border:1px solid var(--rule);border-radius:14px;background:linear-gradient(180deg,var(--bg-2),var(--bg));padding:clamp(1rem,2.4vw,1.6rem)}
.ltf .demo-title{font:400 1.08rem/1.4 var(--serif);margin:0 0 1rem;color:var(--ink)}
.ltf .astext{margin-top:1rem;font-size:.9rem}
.ltf .astext summary{cursor:pointer;color:var(--accent);font-weight:600}
.ltf .astext table{border-collapse:collapse;margin-top:.6rem;width:100%}
.ltf .astext th,.ltf .astext td{border-bottom:1px solid var(--rule);padding:.35rem .5rem;text-align:left;vertical-align:top}
.ltf .seg{display:inline-flex;border:1px solid var(--rule);border-radius:999px;overflow:hidden;margin-bottom:1rem}
.ltf .seg button{border:0;background:transparent;color:var(--ink-2);font:600 .85rem var(--sans);padding:.6rem 1rem;min-height:40px;cursor:pointer}
.ltf .seg button[aria-checked="true"]{background:var(--accent);color:var(--bg)}
.ltf .dg-controls{display:flex;gap:.8rem;align-items:center;flex-wrap:wrap;margin-bottom:.8rem;font-size:.9rem}
.ltf .dg-controls input{flex:1 1 14rem;accent-color:var(--accent);min-height:32px}
.ltf .dg-controls output{font:italic 400 1rem var(--serif);color:var(--lamp);min-width:16rem}
.ltf .dg-body{display:grid;grid-template-columns:minmax(0,1.6fr) minmax(17rem,1fr);gap:1.4rem;align-items:start}
.ltf .dg-main{min-width:0}
.ltf .dg-svg{width:100%;height:auto;display:block}
.ltf .dg-svg .edge{fill:none;stroke-width:2;transition:opacity .5s var(--ease),stroke-width .2s}
.ltf .dg-svg .e-supports{stroke:var(--accent)}
.ltf .dg-svg .e-complicates{stroke:var(--copper)}
.ltf .dg-svg .e-compares{stroke:var(--lamp);stroke-dasharray:6 5}
.ltf .dg-svg .e-proposes{stroke:var(--muted);stroke-dasharray:2 5;stroke-linecap:round}
.ltf .dg-svg .e-structure{stroke:var(--rule);stroke-width:1.4}
.ltf .dg-svg .edge.sel{stroke-width:4}
.ltf .dg-svg .node circle{fill:var(--node);stroke-width:1.6;transition:opacity .5s var(--ease)}
.ltf .dg-svg .node .halo{fill:currentColor;opacity:calc(.5*var(--glow));filter:url(#blur)}
.ltf .dg-svg .node.sel .halo{opacity:calc(.85*var(--glow));animation:breathe 3.2s ease-in-out infinite}
@keyframes breathe{50%{opacity:calc(.45*var(--glow))}}
.ltf .dg-svg .edge-label{font:600 11px var(--sans);fill:var(--ink);paint-order:stroke;stroke:var(--bg);stroke-width:4px;opacity:0;transition:opacity .3s}
.ltf .dg-svg .edge-label.on{opacity:1}
.ltf .dg-svg .edge.sel{filter:drop-shadow(0 0 5px currentColor)}
.ltf .dg-svg .node text{font:500 13px var(--sans);fill:var(--ink-2);paint-order:stroke;stroke:var(--bg);stroke-width:3px}
.ltf .dg-svg .node.sel text{fill:var(--ink);font-weight:600}
.ltf .dg-svg .node.sel circle.core{stroke-width:3.5}
.ltf .dg-svg .node,.ltf .dg-svg .edge-hit{cursor:pointer}
.ltf .dg-svg .edge-hit{stroke:transparent;stroke-width:14;fill:none}
.ltf .dg-svg .future{opacity:0;pointer-events:none}
.ltf .dg-svg .dim{opacity:.28}
.ltf .k-work{color:var(--lamp);stroke:var(--lamp)}
.ltf .k-edition,.ltf .k-copy,.ltf .k-place{color:var(--muted);stroke:var(--muted)}
.ltf .k-passage{color:var(--accent);stroke:var(--accent)}
.ltf .k-reading{color:var(--ink);stroke:var(--ink)}
.ltf .k-memory{color:var(--copper);stroke:var(--copper)}
.ltf .k-inquiry{color:var(--lamp);stroke:var(--lamp)}
.ltf .k-proposal{color:var(--muted);stroke:var(--muted)}
.ltf .dg-legend{display:flex;flex-wrap:wrap;gap:.35rem .9rem;font-size:.75rem;color:var(--muted);margin:.4rem 0 .7rem}
.ltf .lg::before{content:"";display:inline-block;width:1.4rem;height:0;border-top:2px solid;vertical-align:.25em;margin-right:.35rem}
.ltf .lg-supports::before{border-color:var(--accent)}
.ltf .lg-complicates::before{border-color:var(--copper)}
.ltf .lg-compares::before{border-color:var(--lamp);border-top-style:dashed}
.ltf .lg-proposes::before{border-color:var(--muted);border-top-style:dotted}
.ltf .lg-structure::before{border-color:var(--rule)}
.ltf .dg-list{max-height:12rem;overflow:auto;border:1px solid var(--rule);border-radius:10px;padding:.3rem;font-size:.86rem}
.ltf .dg-list [role="option"]{padding:.35rem .5rem;border-radius:6px;cursor:pointer;display:flex;gap:.5rem;align-items:baseline}
.ltf .dg-list [role="option"][aria-selected="true"]{background:color-mix(in srgb,var(--accent) 22%,transparent)}
.ltf .dg-list .k{font:600 .64rem var(--sans);text-transform:uppercase;letter-spacing:.06em;color:var(--muted);min-width:4.6rem}
.ltf .dg-list .grp{font:600 .68rem var(--sans);letter-spacing:.08em;text-transform:uppercase;color:var(--muted);padding:.5rem .5rem .2rem}
.ltf .dg-inspector{font-size:.9rem;border:1px solid var(--rule);border-radius:12px;padding:1rem 1.1rem;background:var(--card);min-height:9rem}
.ltf .dg-inspector h3{font:600 1.05rem var(--serif);margin:0 0 .3rem}
.ltf .dg-inspector .kv{display:grid;grid-template-columns:max-content 1fr;gap:.2rem .7rem;margin:.5rem 0}
.ltf .dg-inspector .kv dt{color:var(--muted)}
.ltf .dg-inspector .kv dd{margin:0}
.ltf blockquote.q{margin:.5rem 0;padding:.3rem 0 .3rem .8rem;border-left:2px solid var(--accent);font:400 1.06rem/1.5 var(--serif);color:var(--ink)}
.ltf blockquote.q mark{background:var(--mark);color:inherit;padding:0 .1em;border-radius:2px}
.ltf cite.src{display:block;font:400 .78rem/1.4 var(--sans);font-style:normal;color:var(--muted);margin-top:.25rem}
.ltf .statusbadge{display:inline-block;font:600 .66rem/1.2 var(--sans);text-transform:uppercase;letter-spacing:.05em;padding:.2rem .45rem;border-radius:4px;border:1px solid}
.ltf .s-text{color:var(--accent)}
.ltf .s-memory{color:var(--copper);border-style:dashed}
.ltf .s-inference{color:var(--muted);border-style:dotted}
.ltf .s-accepted{color:var(--ink);background:color-mix(in srgb,var(--accent) 18%,transparent)}
.ltf .s-record{color:var(--ink-2)}
.ltf .encounter-fig{margin:1rem 0 0}
.ltf .encounter-fig img{width:100%;height:auto;border-radius:10px;border:1px solid var(--rule)}
.ltf .encounter-fig figcaption{font-size:.8rem;color:var(--muted);margin-top:.4rem}
.ltf .claims{list-style:none;margin:0 0 1.2rem;padding:0;display:grid;gap:.7rem}
.ltf .claims li{border:1px solid var(--rule);border-radius:10px;padding:.8rem 1rem;background:var(--card);transition:border-color .4s}
.ltf .claims .flat-line{font:400 1.05rem/1.45 var(--serif)}
.ltf .claims .meta{display:flex;gap:.5rem;align-items:center;flex-wrap:wrap;margin-top:.45rem;font-size:.8rem;color:var(--muted)}
.ltf .demo-info[data-rep="flat"] .claims .kept-only{display:none}
.ltf .demo-info[data-rep="flat"] .claims li{border-style:solid;border-color:var(--rule)}
.ltf .di-lost{display:none;font-size:.8rem;color:var(--copper);margin-top:.4rem}
.ltf .demo-info[data-rep="flat"] .di-lost{display:block}
.ltf .di-dist{border-top:1px solid var(--rule);padding-top:1rem}
.ltf .di-k{font:600 .72rem var(--sans);letter-spacing:.08em;text-transform:uppercase;color:var(--muted);margin:0 0 .6rem}
.ltf .sliders{display:grid;gap:.5rem}
.ltf .sliders label{display:grid;grid-template-columns:8rem 1fr 3.5rem;gap:.8rem;align-items:center;font-size:.9rem}
.ltf .sliders input{accent-color:var(--accent);min-height:32px}
.ltf .di-out{font:400 1.05rem/1.5 var(--serif);margin:.8rem 0 0}
.ltf .di-out b{font-family:var(--sans);font-size:.95rem}
.ltf .db-prior{display:grid;grid-template-columns:auto 1fr 3.5rem;gap:.8rem;align-items:center;margin-bottom:1rem;font-size:.95rem}
.ltf .db-prior input{accent-color:var(--lamp);min-height:32px}
.ltf .db-evidence{list-style:none;margin:0;padding:0;display:grid;gap:.6rem}
.ltf .db-evidence li{display:grid;grid-template-columns:auto minmax(0,1fr) auto;gap:.8rem;align-items:start;border:1px solid var(--rule);border-radius:10px;padding:.7rem .9rem;background:var(--card)}
.ltf .db-evidence li.off{border-style:dashed;background:transparent}
.ltf .db-evidence .excl{font:600 .72rem var(--sans);letter-spacing:.05em;text-transform:uppercase;color:var(--copper);margin:.3rem 0 0}
.ltf .db-evidence input[type="checkbox"]{width:1.2rem;height:1.2rem;accent-color:var(--accent);margin-top:.3rem}
.ltf .db-evidence blockquote.q{margin:0;font-size:1rem}
.ltf .db-evidence .lr{display:flex;flex-direction:column;align-items:flex-end;gap:.2rem;font-size:.8rem;color:var(--muted)}
.ltf .db-evidence select{font:600 .9rem var(--sans);background:var(--bg);color:var(--ink);border:1px solid var(--rule);border-radius:6px;padding:.3rem .4rem;min-height:36px}
.ltf .db-evidence .why{font-size:.8rem;color:var(--muted);margin:.3rem 0 0}
.ltf .db-result{margin-top:1.2rem}
.ltf .db-bar{position:relative;height:14px;border-radius:999px;background:var(--rule);overflow:hidden}
.ltf .db-bar span{position:absolute;left:0;top:0;bottom:0;background:linear-gradient(90deg,var(--accent),var(--lamp));transition:width .6s var(--ease)}
.ltf .db-bar i{position:absolute;top:-3px;bottom:-3px;width:2px;background:var(--copper)}
.ltf .db-eq{font:400 1.05rem/1.6 var(--serif);margin:.8rem 0 0}
.ltf .db-eq b{font-family:var(--sans)}
.ltf .df-body{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.1fr);gap:1.4rem;align-items:start}
.ltf .df-svg{width:100%;height:auto}
.ltf .df-svg .ring{fill:none;stroke:var(--rule);stroke-width:2}
.ltf .df-svg .outer{fill:none;stroke:var(--copper);stroke-width:1.5;stroke-dasharray:4 6;opacity:.5;transition:opacity .4s}
.ltf .df-svg .outer.on{opacity:1;stroke-width:2.5}
.ltf .df-svg .stn circle{fill:var(--node);stroke:var(--accent);stroke-width:1.6}
.ltf .df-svg .stn text{font:500 11.5px var(--sans);fill:var(--ink-2)}
.ltf .df-svg .stn.on circle{fill:var(--accent)}
.ltf .df-svg .stn.on text{fill:var(--ink)}
.ltf .df-svg .arrow{fill:none;stroke:var(--accent);stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.ltf .df-svg .pulse{fill:var(--lamp);transition:cx .7s var(--ease),cy .7s var(--ease)}
.ltf .df-q{font:400 1.12rem/1.4 var(--serif);margin:0 0 .8rem}
.ltf .df-qk{display:block;font:600 .7rem var(--sans);letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
.ltf .df-card{border:1px dotted var(--muted);border-radius:10px;padding:.8rem 1rem;background:var(--card);margin-bottom:.8rem}
.ltf .df-card .df-who{font-size:.78rem;color:var(--muted);display:flex;gap:.5rem;align-items:center;flex-wrap:wrap}
.ltf .df-card .line{font:400 1.1rem/1.4 var(--serif);margin:.35rem 0 0}
.ltf .df-actions{display:flex;flex-wrap:wrap;gap:.5rem;margin-bottom:.9rem}
.ltf .df-ledger{margin:0;padding-left:1.2rem;font-size:.86rem;color:var(--ink-2);display:grid;gap:.35rem}
.ltf .df-ledger li::marker{color:var(--accent)}
.ltf .dp-body{display:grid;grid-template-columns:minmax(11rem,.45fr) minmax(0,1fr);gap:1.2rem;align-items:start}
.ltf .dp-ladder{list-style:none;margin:0;padding:0;display:flex;flex-direction:column-reverse;gap:.4rem;position:relative}
.ltf .dp-ladder button{width:100%;text-align:left;border:1px solid var(--rule);border-radius:10px;background:var(--card);color:var(--ink-2);padding:.6rem .8rem;min-height:44px;font:600 .9rem var(--sans);cursor:pointer;display:flex;justify-content:space-between;gap:.5rem}
.ltf .dp-ladder button small{font-weight:400;color:var(--muted)}
.ltf .dp-ladder button[aria-selected="true"]{border-color:var(--accent);color:var(--ink);box-shadow:0 0 0 1px var(--accent),0 0 22px color-mix(in srgb,var(--accent) calc(40%*var(--glow)),transparent)}
.ltf .dp-view{border:1px solid var(--rule);border-radius:12px;padding:1rem 1.2rem;background:var(--card);min-height:15rem}
.ltf .dp-view h3{font:600 1.1rem var(--serif);margin:0 0 .4rem}
.ltf .dp-view p{margin:.5rem 0}
.ltf .dp-route{margin-top:.9rem;font-size:.84rem;color:var(--muted);display:flex;flex-wrap:wrap;gap:.3rem;align-items:center}
.ltf .dp-route a,.ltf .dp-route button{background:none;border:0;padding:.2rem .1rem;color:var(--accent);font:inherit;cursor:pointer;text-decoration:underline;text-underline-offset:3px}
.ltf .dp-route [aria-current="step"]{color:var(--ink);text-decoration:none;font-weight:600}
.ltf .dr-steps{list-style:none;margin:0 0 1rem;padding:0;display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:.7rem;counter-reset:r}
.ltf .dr-steps li{position:relative;border:1px solid var(--rule);border-radius:12px;padding:.8rem .9rem;background:var(--card);border-style:dashed;transition:border-color .4s}
.ltf .dr-steps li.seen{border-style:solid}
.ltf .dr-steps li:not(.seen) .sym{color:var(--muted)}
.ltf .dr-steps li.cur{border-color:var(--accent);box-shadow:0 0 24px color-mix(in srgb,var(--accent) calc(38%*var(--glow)),transparent)}
.ltf .dr-steps .sym{font:italic 400 1.3rem var(--serif);color:var(--lamp)}
.ltf .dr-steps h3{font:600 .95rem var(--serif);margin:.2rem 0 .4rem}
.ltf .dr-steps p,.ltf .dr-steps blockquote{font-size:.86rem}
.ltf .dr-steps blockquote.q{font-size:.95rem}
.ltf .dr-steps li:not(:last-child)::after{content:"→";position:absolute;right:-.62rem;top:1rem;color:var(--accent);font-size:.9rem}
.ltf .dr-steps textarea{width:100%;min-height:4.2rem;font:400 .95rem/1.4 var(--serif);background:var(--bg);color:var(--ink);border:1px solid var(--rule);border-radius:8px;padding:.5rem}
.ltf .dr-nav{display:flex;gap:.6rem}
.ltf .part-map .map{grid-column:1/-1;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1.6rem 2.4rem}
.ltf .map dl{margin:0}
.ltf .map dt{font:600 1.02rem/1.35 var(--serif);margin-top:1rem;display:flex;gap:.5rem;flex-wrap:wrap;align-items:center}
.ltf .map dd{margin:.25rem 0 0;font-size:.9rem;color:var(--ink-2)}
.ltf .map-group h4{font:400 1.15rem var(--serif);margin:0 0 .6rem;border-bottom:1px solid var(--rule);padding-bottom:.4rem;color:var(--accent);font-style:italic;font-weight:400}
.ltf .table-wrap{grid-column:1/-1;overflow-x:auto}
.ltf .ledger{border-collapse:collapse;width:100%;font-size:.88rem;min-width:46rem}
.ltf .ledger th,.ltf .ledger td{text-align:left;vertical-align:top;padding:.6rem .7rem;border-bottom:1px solid var(--rule)}
.ltf .ledger thead th{font:600 .7rem var(--sans);letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
.ltf .ledger tbody th{font:600 1rem var(--serif)}
@media (max-width: 900px){.ltf .part{grid-template-columns:minmax(0,1fr)}.ltf .dg-body,.ltf .df-body,.ltf .dp-body{grid-template-columns:minmax(0,1fr)}.ltf .part-map .map{grid-template-columns:minmax(0,1fr)}.ltf .dr-steps{grid-template-columns:minmax(0,1fr)}.ltf .dr-steps li:not(:last-child)::after{content:"↓";right:auto;left:1rem;top:auto;bottom:-1.05rem}}
@media (max-width: 520px){.ltf .defs{grid-template-columns:minmax(0,1fr)}.ltf .defs dd{margin-bottom:.4rem}.ltf .sliders label{grid-template-columns:minmax(0,1fr) 3rem}.ltf .sliders label input{grid-column:1/-1;grid-row:2}.ltf .db-evidence li{grid-template-columns:auto minmax(0,1fr)}.ltf .db-evidence .lr{grid-column:2;align-items:flex-start;flex-direction:row;flex-wrap:wrap}}
.ltf .linklike{background:none;border:0;padding:0;color:var(--accent);font:inherit;text-align:left;cursor:pointer;text-decoration:underline;text-underline-offset:3px}
.ltf .dg-inspector ul{margin:.3rem 0;padding:0;list-style:none;display:grid;gap:.35rem}
.ltf .dg-inspector ul li{display:flex;gap:.4rem;align-items:baseline}
.ltf .dg-inspector ul li::before{content:"↳";color:var(--muted);flex:none}
.ltf .scrollx{overflow-x:auto}
.ltf .scrollx table{min-width:40rem}
@media (max-width:520px){.ltf math{font-size:1.05em}}
.ltf .pinned{font:italic 400 1rem/1.4 var(--serif);border:1px dashed var(--accent);border-radius:8px;padding:.4rem .7rem;margin:.2rem 0 .8rem!important}
.ltf .pinned span{font:600 .66rem var(--sans);font-style:normal;letter-spacing:.06em;text-transform:uppercase;color:var(--muted);margin-right:.4rem}
.ltf .pinned span:last-child{margin:0 0 0 .4rem}
.ltf .part-wide{display:block}
.ltf .part-wide .step-demo{margin-top:1.4rem}
.ltf .found{margin:0;display:grid;gap:.9rem}
.ltf .found dt{font:600 1.05rem/1.35 var(--serif);color:var(--ink);display:flex;gap:.5rem;flex-wrap:wrap;align-items:center}
.ltf .found dd{margin:.2rem 0 0;font-size:.93rem}
.ltf .found a{color:var(--accent)}
.ltf .fd-body{display:grid;grid-template-columns:minmax(0,1.7fr) minmax(16rem,1fr);gap:1.4rem;align-items:start}
.ltf .fd-main{min-width:0}
.ltf .fd-svg{width:100%;height:auto;display:block}
.ltf .fd-svg .fl{fill:none;stroke:var(--accent);stroke-width:1.3;opacity:.38;transition:opacity .4s,stroke-width .2s}
.ltf .fd-svg .fl-q{stroke:var(--copper);stroke-dasharray:3 5}
.ltf .fd-svg .fl.on{opacity:1;stroke-width:2.6;filter:drop-shadow(0 0 4px currentColor)}
.ltf .fd-svg .fl.dim{opacity:.12}
.ltf .fd-svg .fnode .halo{fill:currentColor;opacity:calc(.45*var(--glow));filter:url(#fblur)}
.ltf .fd-svg .fnode .core{fill:var(--node);stroke:currentColor;stroke-width:1.8}
.ltf .fd-svg .fnode text{font:500 12.5px var(--sans);fill:var(--ink-2);paint-order:stroke;stroke:var(--bg);stroke-width:3px}
.ltf .fd-svg .fnode.sel .core{stroke-width:3.4}
.ltf .fd-svg .fnode.sel text{fill:var(--ink);font-weight:600}
.ltf .fd-svg .fnode.sel .halo{opacity:calc(.85*var(--glow));animation:breathe 3.2s ease-in-out infinite}
.ltf .fd-svg .fnode.dim{opacity:.45}
.ltf .fd-svg .fnode{cursor:pointer;transition:opacity .4s}
.ltf .fd-svg .theorem-mark{fill:var(--lamp)}
.ltf .fk-theorem{color:var(--lamp)}
.ltf .fk-theory{color:var(--accent)}
.ltf .fk-principle{color:var(--accent)}
.ltf .fk-framework{color:var(--ink-2)}
.ltf .fk-standard{color:var(--ink)}
.ltf .fk-model{color:var(--lamp)}
.ltf .fk-analogy{color:var(--copper)}
.ltf .fk-spec{color:var(--muted)}
.ltf .fd-list{max-height:12rem;overflow:auto;border:1px solid var(--rule);border-radius:10px;padding:.3rem;font-size:.86rem;margin-top:.6rem}
.ltf .fd-list [role="option"]{padding:.35rem .5rem;border-radius:6px;cursor:pointer}
.ltf .fd-list [role="option"][aria-selected="true"]{background:color-mix(in srgb,var(--accent) 22%,transparent)}
.ltf .fd-list .grp{font:600 .68rem var(--sans);letter-spacing:.08em;text-transform:uppercase;color:var(--muted);padding:.5rem .5rem .2rem}
.ltf .fd-inspector{font-size:.9rem;border:1px solid var(--rule);border-radius:12px;padding:1rem 1.1rem;background:var(--card);min-height:12rem}
.ltf .fd-inspector h3{font:600 1.15rem var(--serif);margin:0 0 .4rem}
.ltf .fd-inspector ul{margin:.3rem 0;padding:0;list-style:none;display:grid;gap:.35rem}
.ltf .fd-inspector ul li{display:flex;gap:.4rem;align-items:baseline}
.ltf .fd-inspector ul li::before{content:"↳";color:var(--muted);flex:none}
.ltf .fd-eq{font:italic 400 1.1rem var(--serif);color:var(--lamp)}
.ltf .fd-inspector a{color:var(--accent)}
.ltf .dg-svg .edge.trace{stroke:var(--lamp)!important;stroke-width:3.5;opacity:1!important;filter:drop-shadow(0 0 5px var(--lamp))}
.ltf .dg-svg .node.traced circle.core{stroke:var(--lamp);stroke-width:3}
.ltf .dg-svg .node.traced text{fill:var(--ink)}
.ltf .lg-trace::before{border-color:var(--lamp);border-top-width:3px}
.ltf .btn-sm{min-height:36px;padding:.4rem .8rem;font-size:.8rem}
.ltf .btn[aria-pressed="true"]{background:var(--lamp);color:var(--bg);border-color:transparent}
.ltf .trace-btns{display:flex;gap:.5rem;flex-wrap:wrap;margin:.4rem 0 .6rem}
.ltf .trace-out{font-size:.86rem;border-left:2px solid var(--lamp);padding-left:.6rem}
.ltf .seg-wrap{flex-wrap:wrap;border-radius:14px}
.ltf .seg-wrap button{flex:1 1 auto}
.ltf .demo-variety{margin-bottom:1.4rem}
.ltf .dv-out{border:1px solid var(--rule);border-radius:10px;padding:.9rem 1rem;background:var(--card)}
.ltf .dv-out p{margin:.3rem 0}
.ltf .df-theta{display:block;font:400 .85rem var(--sans);color:var(--lamp);margin-top:.2rem}
.ltf .df-class{margin:.2rem 0 .9rem;font-size:.86rem}
.ltf .df-ck{margin:0 0 .4rem}
.ltf .df-cl{list-style:none;margin:0;padding:0;display:grid;gap:.3rem}
.ltf .df-cl li{display:flex;justify-content:space-between;gap:.8rem;border:1px solid var(--rule);border-radius:8px;padding:.35rem .6rem}
.ltf .df-cl .pk{font:italic 400 1rem var(--serif)}
.ltf .df-cl li.fit .cv{color:var(--accent);font-weight:600}
.ltf .df-cl li.misfit{border-style:dashed}
.ltf .df-cl li.misfit .cv{color:var(--copper);font-weight:600}
.ltf .df-svg .outer-label{font:500 11px var(--sans);fill:var(--copper)}
.ltf .ds-out{border:1px solid var(--rule);border-radius:10px;padding:.9rem 1rem;background:var(--card)}
.ltf .ds-row{display:grid;grid-template-columns:1fr 1fr;gap:1rem}
.ltf .ds-row p{margin:.2rem 0}
.ltf .ds-meter{display:flex;align-items:center;gap:.6rem;flex-wrap:wrap;font-size:.84rem;color:var(--muted);margin:.8rem 0 0}
.ltf .meter{display:inline-flex;gap:3px}
.ltf .meter i{width:26px;height:8px;border-radius:4px;background:var(--rule)}
.ltf .meter i.on{background:var(--accent)}
.ltf .map{grid-column:1/-1;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1.4rem 2.4rem;margin-top:1rem;border-top:1px solid var(--rule);padding-top:1.6rem}
.ltf .map-title{grid-column:1/-1;font:400 1.6rem var(--serif);margin:0}
.ltf .map-intro{grid-column:1/-1;color:var(--ink-2);margin:0;max-width:var(--measure)}
@media (max-width: 900px){.ltf .fd-body{grid-template-columns:minmax(0,1fr)}.ltf .map{grid-template-columns:minmax(0,1fr)}.ltf .ds-row{grid-template-columns:minmax(0,1fr)}}
.ltf .fd-inspector .dir{color:var(--accent);flex:none}
.ltf .fd-inspector ul li::before{content:none}
.ltf .trace-out ul{list-style:none;margin:.3rem 0 0;padding:0;display:grid;gap:.3rem}
.ltf .trace-out .k{font:600 .66rem var(--sans);letter-spacing:.06em;text-transform:uppercase;color:var(--lamp);margin-right:.4rem}
.ltf .trace-out p{margin:0}
/* collisions with r6 global classes, neutralised inside .ltf (measured: tools/ collision inventory, 2026-09-26) */
.ltf .note{position:static;left:auto;top:auto;width:auto;clip-path:none;transition:none;font:400 .82rem/1.5 var(--sans);font-style:normal;color:var(--muted);margin:.3rem 0}
.ltf .step{margin:0}.ltf .step::before{content:none}
.ltf .why{margin:.3rem 0 0;border-top:0;padding-top:0;font-size:.8rem;color:var(--muted)}
.ltf .btn:hover,.ltf .btn:active{transform:none;box-shadow:none}
.ltf .meta{margin:.45rem 0 0}
.ltf blockquote.q{letter-spacing:normal}

/* x2: the five canonical status labels, kind words, origin/decision and the evidence panel (PHI-FRAMEWORK-001) */
.ltf .st-established,.ltf .st-correspondence,.ltf .st-principle,.ltf .st-hypothesis,.ltf .st-implemented{font:600 .68rem/1.3 var(--sans,system-ui);letter-spacing:.06em;text-transform:none;border:1px solid currentColor;border-radius:3px;padding:.1em .45em;white-space:normal}
.ltf .st-established{color:var(--ink,inherit)}.ltf .st-correspondence{color:inherit}.ltf .st-principle{border-style:dashed}.ltf .st-hypothesis{border-style:dotted}
.ltf .kind-w{font-style:italic;font-weight:400}.ltf .v-arrow{white-space:nowrap}.ltf .v-arrow sup{font-size:.7em}
.ltf .ev-panel{border-left:3px double currentColor;padding:.2em 0 .2em .7em;margin:.6em 0}.ltf .s-decision{border-style:dashed}
/* x2 at 200% text on a phone: the inspector and the segmented control must fit */
.ltf .dg-body{grid-template-columns:minmax(0,1.6fr) minmax(min(17rem,100%),1fr)}@media (max-width:900px){.ltf .dg-body{grid-template-columns:minmax(0,1fr)}}
.ltf .dg-inspector .kv{grid-template-columns:max-content minmax(0,1fr)}.ltf .dg-inspector .kv dd{min-width:0;overflow-wrap:anywhere}.ltf .statusbadge{white-space:normal;max-width:100%}
.ltf .seg{flex-wrap:wrap;max-width:100%;border-radius:14px}
.ltf .mscroll{max-width:100%;overflow-x:auto;overflow-y:hidden}.ltf .mscroll>math[display="block"]{overflow:visible}   /* only the wrapper scrolls, in every engine */
.ltf .db-prior{grid-template-columns:auto minmax(0,1fr) minmax(0,3.5rem)}@media (max-width:600px){.ltf .db-prior{grid-template-columns:minmax(0,1fr) auto}.ltf .db-prior label{grid-column:1/-1}}