:root{--bg:#f7f7f6;--paper:#fff;--ink:#17212b;--muted:#637083;--line:#d8dee8;--accent:#17456b;--accent2:#2f7d32;--soft:#eef3f6;--red:#a33a32;--blue:#2b6c9f;--green:#357a4b;--gold:#a06d00;--violet:#5b4b8a}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font-family:Georgia,'Times New Roman',serif;line-height:1.48}.topbar{position:sticky;top:0;z-index:10;background:#fff;border-top:3px solid var(--accent2);border-bottom:1px solid var(--line);padding:13px 28px;display:flex;justify-content:space-between;align-items:center;box-shadow:0 1px 2px #0000000a}.brand a{font-size:20px;color:#111;text-decoration:none;font-weight:600}.version-badge{display:inline-block;margin-left:.35em;padding:.05em .45em;border:1px solid var(--line);border-radius:999px;color:var(--muted);font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;font-size:11px;font-weight:700;letter-spacing:.04em;vertical-align:middle}.topbar nav a{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;font-size:14px;color:#24445f;text-decoration:none;margin-left:18px}.page{max-width:1480px;margin:0 auto;padding:28px}.hero{display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:24px;background:#fff;border:1px solid var(--line);padding:30px 34px;margin-bottom:26px}.eyebrow{text-transform:uppercase;letter-spacing:.08em;color:var(--muted);font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;font-weight:700;font-size:12px}.hero h1{font-size:40px;font-weight:500;margin:.1em 0 .25em}.lead{font-size:18px;color:#3c4855}.summary{border-left:3px solid var(--accent);padding-left:18px;font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;color:var(--muted)}.summary strong{display:block;color:#111;font-size:24px}.block{background:#fff;border:1px solid var(--line);padding:24px;margin:24px 0}.section-title{display:flex;justify-content:space-between;align-items:baseline;gap:20px;border-bottom:1px solid var(--line);margin:-4px 0 20px;padding-bottom:10px}.section-title h2{font-size:28px;font-weight:500;margin:0}.section-title span{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;color:var(--muted);font-size:13px}.search-panel{background:#fbfbfb;border:1px solid var(--line);padding:18px}.form-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:12px 18px}.form-grid.compact{grid-template-columns:repeat(auto-fit,minmax(190px,1fr))}label{display:flex;flex-direction:column;gap:4px;font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;font-size:13px;color:#344253}input,select,button{font:inherit}input,select{border:1px solid #aeb8c5;background:#fff;border-radius:3px;padding:6px 7px;min-height:34px}label select+input{margin-top:4px}.advanced{margin-top:16px}.advanced summary{cursor:pointer;color:var(--accent);font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;font-weight:700}.actions button,.primary,.result button,.draw-controls button,.toggle-row button{border:1px solid #8fa1b2;background:#f3f6f9;color:#10263d;border-radius:3px;padding:7px 12px;margin-right:7px;cursor:pointer}.actions .primary,.primary{background:var(--accent);border-color:var(--accent);color:#fff}.pill{display:inline-block;border:1px solid var(--line);background:#f7f9fb;border-radius:999px;padding:1px 8px;font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;font-size:13px}.results{display:flex;flex-direction:column;gap:8px}.result{border:1px solid var(--line);background:#fff}.result-main{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:14px;align-items:center;padding:10px 12px}.result-title{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;font-weight:700}.chips{display:flex;flex-wrap:wrap;gap:5px;margin-top:6px}.chip{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;font-size:12px;border:1px solid #d5dde7;background:#f7f9fb;border-radius:999px;padding:1px 7px;color:#33475c}.detail-slot{border-top:1px solid var(--line);background:#fbfcfd;padding:18px}.record-grid{display:grid;grid-template-columns:minmax(560px,1.2fr) minmax(430px,.8fr);gap:20px}.wide-figures{grid-column:1 / -1;display:grid;grid-template-columns:1.4fr 1fr;gap:20px}.card{background:#fff;border:1px solid var(--line);padding:16px;margin-bottom:16px}.card h3{font-size:21px;font-weight:500;margin:0 0 12px}.subtle{color:var(--muted);font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;font-size:13px}.figure-box{width:100%;overflow:auto;background:#fff;border:1px solid #e5e9ef;padding:10px}.coords{font-family:'Latin Modern Mono','Courier New',monospace;font-size:13px;color:#26384a;background:#f6f8fa;border:1px solid #e5e9ef;padding:8px;margin-top:8px}.kv-table{display:grid;grid-template-columns:minmax(170px,.42fr) minmax(0,1fr);border-top:1px solid var(--line);font-size:14px}.kv-name,.kv-value{padding:7px 8px;border-bottom:1px solid var(--line)}.kv-name{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;color:#344253;background:#fafafa}.kv-value{font-family:Georgia,'Times New Roman',serif;overflow-wrap:anywhere}.formula{margin-top:8px}.formula summary{cursor:pointer;color:#17456b;font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;font-weight:600}.formula .body{padding:8px 10px;background:#f8fafc;border:1px solid var(--line);margin-top:6px}.small-table{border-collapse:collapse;width:100%;font-size:13px}.small-table th,.small-table td{border:1px solid var(--line);padding:5px 7px;text-align:right}.small-table th{background:#f2f5f8;font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif}.gridline{stroke:#dfe5eb;stroke-width:1}.axisline{stroke:#aab5c0;stroke-width:1.2}.poly{fill:#dceaf6aa;stroke:#17456b;stroke-width:2}.vertex{fill:var(--red);stroke:#fff;stroke-width:1}.boundary{fill:var(--blue);stroke:#fff;stroke-width:1}.interior{fill:var(--green);stroke:#fff;stroke-width:1;cursor:pointer}.origin{fill:#000;stroke:#fff;stroke-width:2}.centA{fill:var(--gold)}.centL{fill:var(--violet)}.centB{fill:var(--blue)}.centI{fill:var(--green)}.ray{stroke:#17456b;stroke-width:2}.ray2{stroke:#8a3b3b;stroke-width:2}.label{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;font-size:11px;fill:#344253}.toggle-row{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:8px}.point-buttons{display:flex;flex-wrap:wrap;gap:6px}.point-buttons button{border:1px solid #b6c2cf;background:#f7f9fb;border-radius:3px;padding:3px 7px;cursor:pointer}.point-buttons button.active{background:#17212b;color:#fff}.hodge{font-family:Georgia,'Times New Roman',serif;text-align:center;line-height:1.45;white-space:pre}.drawn-layout{display:grid;grid-template-columns:260px minmax(360px,1fr) minmax(320px,.8fr);gap:18px}.point-grid{display:grid;gap:2px;align-content:start;justify-content:start;max-height:720px;overflow:auto;padding:8px;background:#fbfbfb;border:1px solid var(--line)}.grid-dot{width:22px;height:22px;border:1px solid #d7dee8;background:#fff;border-radius:2px;cursor:pointer}.grid-dot.sel{background:#17456b}.draw-controls{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif}.hint,.small-note{color:var(--muted);font-size:13px}.preview{border:1px solid var(--line);min-height:260px;padding:8px;background:#fff}.shape-result{margin-top:12px}.note-block{color:#3a4654}.empty{color:var(--muted);font-style:italic}@media(max-width:1000px){.hero,.record-grid,.wide-figures,.drawn-layout{grid-template-columns:1fr}.page{padding:14px}.topbar{position:static}.block{padding:16px}}

/* v3 UI refinements */
body{font-size:17px}.lead{font-size:19px}.kv-table{font-size:16px}.small-table{font-size:14px}.chip{font-size:13px}.coords{font-size:14px}.card h3{font-size:22px}.result-title{font-size:16px}.section-note{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;color:#4a596a;background:#f8fafc;border-left:3px solid var(--accent);padding:8px 10px;margin:0 0 12px}.drawn-layout{display:grid;grid-template-columns:300px minmax(0,1fr);gap:18px;align-items:start}.draw-controls{position:sticky;top:72px;background:#fbfbfb;border:1px solid var(--line);padding:14px}.point-grid{display:block;width:100%;max-height:none;overflow:auto;padding:10px;background:#fbfbfb;border:1px solid var(--line)}.draw-grid-svg{display:block;width:100%;max-width:900px;margin:0 auto;background:#fff}.grid-point{fill:#fff;stroke:#7e8fa3;stroke-width:1.4;cursor:pointer;transition:r .08s ease,fill .08s ease}.grid-point:hover{fill:#dceaf6;r:6}.grid-point.selected{fill:#17456b;stroke:#10263d;r:6}.draw-hull{fill:#2f7d3226;stroke:#2f7d32;stroke-width:2.6;pointer-events:none}.draw-hull-vertex{fill:#a33a32;stroke:#fff;stroke-width:1.5;pointer-events:none}.drawn-results{width:100%;margin-top:18px}.drawn-results .results{width:100%}.drawn-results .result{width:100%}.hodge-diamond{display:flex;flex-direction:column;align-items:center;gap:2px;margin:14px auto 16px;padding:14px 10px;background:radial-gradient(circle at center,#fff 0,#fff 55%,#f8fafc 100%);border:1px solid var(--line);max-width:300px}.hodge-row{display:grid;grid-template-columns:repeat(var(--cols),42px);justify-content:center;gap:28px}.hodge-row span{display:inline-flex;align-items:center;justify-content:center;min-width:30px;min-height:24px;font-size:18px}.poly-muted{fill:#d9dde455;stroke:#7d8795;stroke-width:1.8;stroke-dasharray:5 4}.removed-point{fill:#a33a32;stroke:#fff;stroke-width:1.6}.added-point{fill:#2f7d32;stroke:#fff;stroke-width:1.6}.neighbor-toolbar{display:flex;flex-wrap:wrap;gap:10px;align-items:end;margin-bottom:12px}.neighbor-toolbar label{max-width:210px}.neighbor-list{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:12px}.neighbor-card{border:1px solid var(--line);background:#fbfcfd;padding:10px}.neighbor-title{display:flex;justify-content:space-between;gap:8px;align-items:baseline;margin-bottom:6px;font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif}.neighbor-title span{font-size:12px;color:var(--muted)}.neighbor-card button,.compute-btn{border:1px solid #8fa1b2;background:#f3f6f9;color:#10263d;border-radius:3px;padding:6px 10px;margin-top:6px;cursor:pointer}.neighbor-match{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;font-size:13px;margin-top:6px}.code-box{white-space:pre-wrap;overflow:auto;background:#101820;color:#e9f2f2;border-radius:4px;padding:12px;font-family:'Latin Modern Mono','Courier New',monospace;font-size:13px}.katex{font-size:1.04em}@media(max-width:1000px){.drawn-layout{grid-template-columns:1fr}.draw-controls{position:static}.hodge-row{gap:18px}}

/* v4 additions */
.draw-auto-origin{fill:#111;stroke:#fff;stroke-width:2;pointer-events:none}.mapped-poly{fill:#2f7d3222;stroke:#2f7d32;stroke-width:2;stroke-dasharray:6 4}.mapped-point{fill:#111;stroke:#fff;stroke-width:1}.shape-transform-info{display:grid;grid-template-columns:minmax(0,1fr) minmax(260px,.42fr);gap:12px;align-items:center;border-top:1px solid var(--line);background:#f8fafc;padding:10px 12px}.shape-map-svg{background:#fff;border:1px solid #e5e9ef}.neighbor-old-point{fill:#8aa3bd;opacity:.65}.neighbor-new-point{fill:#24445f;opacity:.75}.vector-plot{display:block;max-height:520px}.kv-value .katex-display{margin:.25em 0}@media(max-width:900px){.shape-transform-info{grid-template-columns:1fr}}

/* v5 refinements */
.result-actions{display:flex;gap:6px;align-items:center;justify-content:flex-end}.result-actions button,.copy-lattice{border:1px solid #8fa1b2;background:#f3f6f9;color:#10263d;border-radius:3px;padding:6px 10px;cursor:pointer}.shape-result{margin:0 0 16px}.collapsed-card summary{display:flex;align-items:baseline;justify-content:space-between;gap:12px;cursor:pointer;list-style:none}.collapsed-card summary::-webkit-details-marker{display:none}.collapsed-card summary h3{margin:0}.collapsed-card summary span{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;color:var(--muted);font-size:13px}.figure-tools{display:flex;flex-wrap:wrap;gap:6px;margin:0 0 8px}.blowup-controls{display:grid;grid-template-columns:minmax(220px,1fr) minmax(120px,.35fr) auto;gap:10px;align-items:end;margin-bottom:12px}.blowup-result h4{margin:.4rem 0}.subdivision-line{stroke:#8b98a8;stroke-width:1.2;stroke-dasharray:4 3}.trop-end{stroke:#17456b;stroke-linecap:round;opacity:.78}.trop-node{fill:#111;stroke:#fff;stroke-width:2}.draw-grid-svg .axisline{stroke:#697789;stroke-width:1.8}.draw-grid-svg{max-width:940px}.point-grid{background:#f7f9fb}@media(max-width:900px){.blowup-controls{grid-template-columns:1fr}.result-actions{justify-content:flex-start}}

/* v6 refinements */
.matrix-scroll{overflow:auto;max-width:100%;border:1px solid var(--line);background:#fff;margin-top:8px}.matrix-table{min-width:520px}.matrix-table th{position:sticky;top:0}.divisor-table td,.divisor-table th{text-align:left}.visual-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:12px;margin:12px 0}.adjoint-poly{fill:none;stroke-width:2.4}.adjoint-0{fill:#dceaf650;stroke:#17456b}.adjoint-1{fill:#e9f5e850;stroke:#2f7d32}.adjoint-2{fill:#fff4d950;stroke:#a06d00}.adjoint-3{fill:#efeafd50;stroke:#5b4b8a}.slice-point{fill:#17456b;stroke:#fff;stroke-width:1}.compute-panel{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:10px;align-items:end;margin:12px 0;padding:10px;border:1px solid var(--line);background:#f8fafc}.compute-result{margin-top:10px}.blowup-module{border:1px solid var(--line);background:#fbfcfd;padding:10px;margin-top:12px}.blowup-module>summary{font-size:17px}.blowup-layout{display:grid;grid-template-columns:minmax(280px,.9fr) minmax(260px,1.1fr);gap:14px;align-items:start}.blowup-centers{display:grid;grid-template-columns:repeat(auto-fit,minmax(86px,1fr));gap:6px;margin-top:8px}.blow-center{border:1px solid #b6c2cf;background:#fff;border-radius:5px;padding:6px;cursor:pointer;color:#26384a}.blow-center span{font-size:11px;color:var(--muted)}.blow-center.selected{background:#17212b;color:#fff;border-color:#17212b}.blow-center.selected span{color:#dfe5eb}.blow-selected{fill:#111;stroke:#ffdf74;stroke-width:3}.blowup-svg{background:#fff}.blowup-controls{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:10px;align-items:end;margin:0 0 12px}.blowup-controls input:disabled{background:#eef1f4;color:#8a94a1}.blowup-result .visual-grid .figure-box{min-height:160px}.drawn-results .shape-transform-info .figure-tools{justify-content:flex-start}@media(max-width:900px){.blowup-layout{grid-template-columns:1fr}.visual-grid{grid-template-columns:1fr}}

/* v7 stability diagnostics */
.error-card{border-color:#c77;background:#fff8f8}.error-card h3{color:#8a1f1f}.error-card .code-box{max-height:260px}

/* v8 blow-up and period refinements */
.blow-corner-hot{cursor:pointer;pointer-events:all}.blow-singular{fill:#fff0d9;stroke:#a06d00;stroke-width:3}.blow-center.singular-center{border-color:#c58a1b;background:#fff8e8}.blow-center.singular-center::after{content:' singular';display:block;font-size:11px;color:#8a5a00}.blowup-result h5{margin:.2rem 0 .4rem;font-size:16px}.blowup-result .small-table td,.blowup-result .small-table th{text-align:left}.compute-result h5{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;color:#344253}.compute-result .visual-grid{align-items:start}

/* v9 layout refinements */
.svg-title{font-size:12px;font-weight:600}.decomp-card{border:1px solid var(--line);background:#fbfcfd;padding:12px;margin:10px 0}.decomp-card h4{margin:.2rem 0 .5rem}.decomp-card h5{margin:.1rem 0 .35rem;color:#344253;font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif}.compute-result .small-table td:first-child,.compute-result .small-table th:first-child{text-align:left}.blowup-preview .figure-box,.figure-box .blowup-svg{padding-top:4px}

/* v11 interaction and compact-grid refinements */
#shape-search.primary{background:var(--accent);border-color:var(--accent);color:#fff}.draw-grid-svg{max-width:640px}.grid-point:hover{r:5.2}.grid-point.selected{r:5.2}.blow-center.selected{background:#e7f0f8;color:#10263d;border-color:#17456b;box-shadow:inset 0 0 0 2px #17456b}.blow-center.selected span{color:#33475c}.blow-center.singular-center.selected{background:#fff1cf;color:#2b2516;border-color:#a06d00;box-shadow:inset 0 0 0 2px #a06d00}.blow-center.singular-center.selected span,.blow-center.singular-center.selected::after{color:#5d4300}.stop-btn{background:#fff8f8;border-color:#c77;color:#8a1f1f}.svg-title{paint-order:stroke;stroke:#fff;stroke-width:4px;stroke-linejoin:round;pointer-events:none}
.grid-hit{fill:transparent;stroke:none;pointer-events:all;cursor:pointer;touch-action:manipulation}.draw-grid-svg{touch-action:manipulation;-webkit-tap-highlight-color:transparent}.point-grid{-webkit-overflow-scrolling:touch}.grid-point{pointer-events:none}.grid-point.selected{fill:#17456b;stroke:#10263d;r:6.4}@media(max-width:700px){.draw-grid-svg{min-width:520px;max-width:none}.point-grid{overflow:auto}.draw-controls button{min-height:42px}.grid-point.selected{r:7}}

/* v12 toric preview refinements */
.blow-clipped-poly{fill:#2f7d3233;stroke:#2f7d32;stroke-width:2.4}.blow-cut-line{stroke:#a33a32;stroke-width:2.2;stroke-dasharray:6 4}.blow-new-vertex{fill:#2f7d32;stroke:#fff;stroke-width:1.4}.blow-preview-note{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;font-size:11px;fill:#344253;paint-order:stroke;stroke:#fff;stroke-width:3px;stroke-linejoin:round;pointer-events:none}

/* v13 interaction refinements */
.hero{grid-template-columns:1fr}.summary[hidden]{display:none}.open-record-btn,.open-record-btn.opened{background:var(--accent);border-color:var(--accent);color:#fff}.result-actions .open-record-btn{background:var(--accent);border-color:var(--accent);color:#fff}.adjoint-match{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;font-size:12px}.blow-center:disabled{opacity:.78;cursor:not-allowed}.blow-center.selected:disabled{opacity:1}

/* v19 safeguards and drawn-grid marker fixes */
.copy-lattice.copy-disabled,
.copy-lattice:disabled{
  opacity:.68;
  cursor:not-allowed;
  background:#eef1f4;
  color:#7a8694;
  border-color:#c2cbd6;
}
.grid-point.selected.hull-vertex{
  fill:var(--red);
  stroke:#fff;
  stroke-width:1.6;
  r:7;
}
.grid-point.auto-origin{
  fill:#111;
  stroke:#ffdf74;
  stroke-width:2.8;
  r:8;
}
.grid-point.selected.auto-origin{
  fill:#111;
  stroke:#ffdf74;
  stroke-width:3;
  r:8.4;
}

/* v20 DAG, adjoint tower, and decomposition refinements */
.dag-scroll{width:100%;overflow:auto;background:linear-gradient(180deg,#ffffff 0%,#fbfcfd 100%);border:1px solid var(--line);padding:8px;margin:8px 0 10px}.blowdown-dag-svg{display:block}.dag-edge{fill:none;stroke-width:1.55;stroke-linecap:round;stroke-linejoin:round;opacity:.82}.dag-edge-0{stroke:#17456b}.dag-edge-1{stroke:#2f7d32}.dag-edge-2{stroke:#a06d00}.dag-edge-3{stroke:#5b4b8a}.dag-edge-4{stroke:#8a3b3b}.dag-edge-5{stroke:#316c7d}.dag-edge-6{stroke:#7c5a2b}.dag-edge-7{stroke:#52606d}.dag-node-wrap{cursor:pointer;outline:none}.dag-node{stroke:#fff;stroke-width:1.3}.dag-inner{fill:#2b6c9f}.dag-minimal{fill:#111}.dag-root{fill:#a06d00}.dag-node-wrap.selected .dag-node{stroke:#ffdf74;stroke-width:3}.dag-node-wrap:hover .dag-node{filter:drop-shadow(0 1px 2px #0004)}.dag-node-label{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;font-size:9.5px;fill:#26384a;paint-order:stroke;stroke:#fff;stroke-width:3px;stroke-linejoin:round;pointer-events:none}.dag-legend .label{font-size:10px}.dag-node-info{border:1px solid var(--line);background:#fbfcfd;padding:10px;margin:8px 0 12px}.dag-node-card h5{margin:.1rem 0 .45rem;font-size:15px;font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;color:#344253}.adjoint-segment{fill:none;stroke-width:3;stroke-linecap:round}.adjoint-point{stroke:#fff;stroke-width:1.4}.adjoint-svg .adjoint-segment.adjoint-0{stroke:#17456b}.adjoint-svg .adjoint-segment.adjoint-1{stroke:#2f7d32}.adjoint-svg .adjoint-segment.adjoint-2{stroke:#a06d00}.adjoint-svg .adjoint-segment.adjoint-3{stroke:#5b4b8a}.adjoint-svg .adjoint-point.adjoint-0{fill:#17456b}.adjoint-svg .adjoint-point.adjoint-1{fill:#2f7d32}.adjoint-svg .adjoint-point.adjoint-2{fill:#a06d00}.adjoint-svg .adjoint-point.adjoint-3{fill:#5b4b8a}

/* v21 advanced search grouping */
.advanced[open]{display:block;margin-top:16px}.adv-group{border:1px solid var(--line);background:#fff;margin:12px 0;padding:0}.adv-group>summary{padding:10px 12px;background:#f2f5f8;color:#173d5d;font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;font-weight:700;cursor:pointer}.adv-group>.form-grid{padding:12px}.adv-group .small-note{padding:0 12px 12px;margin:0}.search-panel code{font-family:'Latin Modern Mono','Courier New',monospace;background:#eef3f6;border:1px solid #d9e2ec;border-radius:3px;padding:0 3px}.compound-label{gap:6px}.compound-row{display:grid;grid-template-columns:minmax(44px,.4fr) minmax(44px,.4fr) 74px minmax(72px,1fr);gap:5px;align-items:center}.compound-label:first-of-type .compound-row{grid-template-columns:minmax(52px,.55fr) 74px minmax(82px,1fr)}.form-grid label select+input,.form-grid label select+span,.form-grid label input+select{margin-top:4px}.search-panel select{min-width:62px}.search-panel input[inputmode="decimal"],.search-panel input[inputmode="numeric"]{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif}.advanced summary{user-select:none}@media(max-width:700px){.compound-row,.compound-label:first-of-type .compound-row{grid-template-columns:1fr}.adv-group>.form-grid{padding:10px}}


/* v22 collapsible information panels */
.record-collapsible-card>summary{display:flex;align-items:baseline;justify-content:space-between;gap:12px;cursor:pointer;list-style:none}.record-collapsible-card>summary::-webkit-details-marker{display:none}.record-collapsible-card>summary h3{margin:0}.record-collapsible-card>summary .collapse-hint{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;color:var(--muted);font-size:12px}.record-collapsible-card:not([open]){padding-bottom:16px}.dag-node-card-details{border:1px solid var(--line);background:#fff;padding:10px;margin:0}.dag-node-card-details>summary{display:flex;align-items:baseline;justify-content:space-between;gap:12px;cursor:pointer;list-style:none}.dag-node-card-details>summary::-webkit-details-marker{display:none}.dag-node-card-details>summary h5{margin:0}.dag-node-card-details>summary span{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;color:var(--muted);font-size:12px}.dag-node-card-details[open] .kv-table{margin-top:8px}

/* v23 explanatory help tooltips */
.help-tip{position:relative;display:inline-flex;align-items:center;justify-content:center;margin-left:.34em;width:1.08em;height:1.08em;border:1.5px solid currentColor;border-radius:50%;background:transparent;color:inherit;font:inherit;font-size:.86em;line-height:1;vertical-align:middle;cursor:help;padding:0;opacity:.72;z-index:20}.help-tip:hover,.help-tip:focus-visible,.help-tip.help-open{opacity:1;background:rgba(15,23,42,.06);outline:none}.help-mark{font-weight:700;transform:translateY(-.02em)}.help-panel{display:none;position:absolute;left:50%;top:calc(100% + 8px);transform:translateX(-50%);width:min(430px,calc(100vw - 36px));max-width:430px;padding:12px 14px;border:1px solid var(--line);border-radius:12px;background:#fff;color:var(--ink);box-shadow:0 14px 40px rgba(15,23,42,.18);font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;font-size:12.5px;font-weight:400;line-height:1.48;text-align:left;white-space:normal;pointer-events:auto}.help-panel::before{content:"";position:absolute;left:50%;top:-6px;width:10px;height:10px;background:#fff;border-left:1px solid var(--line);border-top:1px solid var(--line);transform:translateX(-50%) rotate(45deg)}.help-panel p{margin:0 0 8px}.help-panel p:last-child{margin-bottom:0}.help-panel strong{font-weight:700}.help-tip:hover>.help-panel,.help-tip:focus-visible>.help-panel,.help-tip.help-open>.help-panel{display:block}.kv-name .help-tip,summary .help-tip,h2 .help-tip,h3 .help-tip,h4 .help-tip,h5 .help-tip,th .help-tip{font-size:.78em}.chip .help-tip{font-size:.82em;margin-left:.22em;margin-right:.12em}.result-title>.help-tip{font-size:.82em}.help-inline-slot{display:inline-flex;vertical-align:middle}.form-grid label .help-inline-slot,.draw-controls label .help-inline-slot{margin-left:.24em;margin-right:.15em}.form-grid label{overflow:visible}.kv-name,.card summary,.results-head,.result,.chip{overflow:visible}.record-collapsible-card>summary{overflow:visible}.help-tip .katex{font-size:1em}
@media (max-width:640px){.help-panel{left:auto;right:0;transform:none;width:min(360px,calc(100vw - 28px))}.help-panel::before{left:auto;right:12px;transform:rotate(45deg)}}

/* v24 tooltip interaction fixes: keep the hit target to the small ? button and keep panels above all other UI. */
.help-tip{z-index:1;isolation:isolate;pointer-events:auto}
.help-tip:hover,.help-tip:focus-visible,.help-tip.help-open{z-index:2147483000}
.help-panel{z-index:2147483000;pointer-events:none}
.help-tip:hover>.help-panel,.help-tip:focus-visible>.help-panel,.help-tip.help-open>.help-panel{display:block}
.limit-warning{border:1px solid #e2c36a;background:#fff9df;color:#594300;padding:8px 10px;margin:0 0 8px}


/* v25 tooltip hit-box fix: the hover/click target is only the small circled question mark; panels float outside the button. */
.help-tip{
  box-sizing:border-box;
  display:inline-grid!important;
  place-items:center;
  flex:0 0 auto;
  width:1.08em!important;
  height:1.08em!important;
  min-width:1.08em!important;
  max-width:1.08em!important;
  min-height:1.08em!important;
  max-height:1.08em!important;
  padding:0!important;
  overflow:visible;
  line-height:1!important;
}
.help-tip>.help-panel{display:none!important;pointer-events:none!important}
.help-inline-slot{display:inline-grid;place-items:center;width:auto;height:1.08em;line-height:1;vertical-align:middle;pointer-events:none}
.help-inline-slot>.help-tip{pointer-events:auto}
.floating-help-panel{
  display:none;
  position:fixed;
  width:min(430px,calc(100vw - 36px));
  max-width:430px;
  padding:12px 14px;
  border:1px solid var(--line);
  border-radius:12px;
  background:#fff;
  color:var(--ink);
  box-shadow:0 14px 40px rgba(15,23,42,.18);
  font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;
  font-size:12.5px;
  font-weight:400;
  line-height:1.48;
  text-align:left;
  white-space:normal;
  pointer-events:none;
  z-index:2147483647;
}
.floating-help-panel.visible,.floating-help-panel.measure{display:block}
.floating-help-panel p{margin:0 0 8px}.floating-help-panel p:last-child{margin-bottom:0}.floating-help-panel strong{font-weight:700}.floating-help-panel .katex{font-size:1em}

/* v27.1 divisor laboratory */
.divisor-lab-panel{grid-template-columns:minmax(260px,1fr) auto}
.divisor-lab-input{width:100%;font-family:'Latin Modern Mono','Courier New',monospace}
.divisor-lab .compute-result .kv-table{margin-top:8px}
@media(max-width:640px){.divisor-lab-panel{grid-template-columns:1fr}.divisor-lab-panel .compute-btn{width:100%}}

/* v29 blow-up fan interaction */
.blowup-controls{display:flex;flex-wrap:wrap;gap:8px;align-items:center;justify-content:flex-start}
.blow-refresh{background:var(--accent);border-color:var(--accent);color:#fff}
.blow-center .blow-state{display:block;margin-top:3px;font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:.03em;color:var(--muted)}
.blow-center.ordinary-state{background:#e7f0f8;border-color:#17456b;box-shadow:inset 0 0 0 2px #17456b}
.blow-center.smooth-state{background:#fff1cf;border-color:#a06d00;box-shadow:inset 0 0 0 2px #a06d00}
.blow-center.custom-state{background:#efeafd;border-color:#5b4b8a;box-shadow:inset 0 0 0 2px #5b4b8a}
.blow-center.custom-state .blow-state{color:#5b4b8a}
.blow-center.ordinary-state .blow-state{color:#17456b}
.blow-center.smooth-state .blow-state{color:#704800}
.fan-zoom-tools{display:flex;gap:6px;justify-content:flex-end;margin:6px 0 4px}
.fan-zoom-tools button{border:1px solid #8fa1b2;background:#f3f6f9;color:#10263d;border-radius:3px;min-width:34px;padding:4px 10px;cursor:pointer;font-weight:700}
.blowup-fan-svg{background:#fff;touch-action:manipulation;-webkit-tap-highlight-color:transparent}
.fan-primitive-point{fill:#fff;stroke:#8fa1b2;stroke-width:1.2;cursor:pointer;pointer-events:all}
.fan-primitive-point:hover{fill:#dceaf6;stroke:#17456b;stroke-width:1.8}
.fan-primitive-point.selected{fill:#5b4b8a;stroke:#fff;stroke-width:1.6}
.fan-base-ray{stroke:#17456b;stroke-width:2.4;stroke-linecap:round}
.fan-inserted-ray{stroke:#a06d00;stroke-width:2.2;stroke-linecap:round;stroke-dasharray:6 4}
.fan-custom-ray{stroke:#5b4b8a;stroke-width:2.5;stroke-linecap:round}
.fan-base-ray-point{fill:#17456b;stroke:#fff;stroke-width:1.2}
.fan-inserted-ray-point{fill:#a06d00;stroke:#fff;stroke-width:1.2}
.fan-custom-ray-point{fill:#5b4b8a;stroke:#fff;stroke-width:1.2}
@media(max-width:900px){.blowup-controls{display:grid;grid-template-columns:1fr}.blow-refresh{width:100%}}

/* v30 blow-up laboratory layout and unified compute/search buttons */
.compute-btn,
.actions .primary,
.primary,
#compute-neighbors,
.neighbor-card button[data-neighbor-search]{
  background:var(--accent)!important;
  border-color:var(--accent)!important;
  color:#fff!important;
}
.compute-btn:hover,
.actions .primary:hover,
.primary:hover,
#compute-neighbors:hover,
.neighbor-card button[data-neighbor-search]:hover{filter:brightness(.96)}
.blowup-module .blowup-layout{
  display:grid;
  grid-template-columns:minmax(420px,1fr) minmax(280px,.62fr);
  gap:14px;
  align-items:start;
}
.blowup-side{display:flex;flex-direction:column;gap:10px}
.blowup-module .blowup-centers{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(92px,1fr));
  gap:6px;
  margin:0;
}
.blowup-module .blowup-controls{
  display:flex;
  flex-direction:column;
  gap:8px;
  align-items:stretch;
  margin:0;
}
.blowup-control-row{display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.blowup-control-row button{
  border:1px solid #8fa1b2;
  background:#f3f6f9;
  color:#10263d;
  border-radius:3px;
  padding:7px 12px;
  cursor:pointer;
}
.blowup-control-row .blow-compute{width:100%;max-width:260px;margin-top:0}
.blow-custom{fill:#5b4b8a;stroke:#fff;stroke-width:2.2}
.blowup-fan-row{
  display:grid;
  grid-template-columns:minmax(0,1fr) auto;
  gap:8px;
  align-items:start;
  margin:8px 0 10px;
}
.blowup-fan-row .fan-zoom-tools{
  display:flex;
  flex-direction:column;
  gap:6px;
  justify-content:flex-start;
  margin:0;
}
.blowup-fan-row .fan-zoom-tools button{
  border:1px solid #8fa1b2;
  background:#f3f6f9;
  color:#10263d;
  border-radius:3px;
  min-width:34px;
  padding:4px 10px;
  cursor:pointer;
  font-weight:700;
}
.fan-clickable-ray-point{cursor:pointer;pointer-events:all}
@media(max-width:900px){
  .blowup-module .blowup-layout,.blowup-fan-row{grid-template-columns:1fr}
  .blowup-fan-row .fan-zoom-tools{flex-direction:row;justify-content:flex-end}
}

/* v32 algebraic-geometry compute modules */
.ag-module-grid{display:grid;grid-template-columns:1fr;gap:10px;margin:12px 0 16px}
details.ag-module{border:1px solid #cfd9e2;border-radius:7px;background:#fbfcfe;overflow:hidden;margin:0}
details.ag-module>summary{padding:12px 14px;background:#f4f7fa;color:#173a59;font-weight:700;cursor:pointer;border-bottom:1px solid transparent}
details.ag-module[open]>summary{border-bottom-color:#e2e8ee}
.ag-module-body{background:#fff}
.ag-module-lead{margin:0;padding:11px 14px 0;color:#536779;line-height:1.45}
.ag-compute-panel{margin:0;padding:10px 14px;border-bottom:1px solid #e2e8ee;background:#fff;align-items:flex-end}
.ag-compute-panel label{min-width:170px;flex:0 1 260px}
.ag-compute-panel input{width:100%;box-sizing:border-box}
.ag-result{margin:0;padding:12px 14px;background:#fff;max-width:100%;overflow:auto}
.ag-result .kv{margin-top:0}
.ag-equation-list{margin:8px 0 8px 1.4rem;padding:0}
.ag-equation-list li{padding:3px 0;overflow-wrap:anywhere}
.ag-result details.formula{margin-top:10px}
.ag-result .decomp-card{border:1px solid #dce4eb;border-radius:6px;padding:10px;margin:10px 0;background:#fafcff}
.ag-result .decomp-card h5{margin:0 0 8px;color:#244d6b}
.ag-betti-table th,.ag-betti-table td{text-align:center;min-width:42px}
.adjoint-tower-inline{margin:10px 0 12px;max-width:760px}
#minkowski-equivariant{margin-top:12px}
@media(max-width:700px){.ag-compute-panel{display:grid;grid-template-columns:1fr}.ag-compute-panel .compute-btn{width:100%}.ag-result .small-table{min-width:620px}}