:root{--paper:#f5f2eb;--card:#fffdf7;--ink:#223d36;--muted:#52685e;--line:#cbd3c9;--rust:#a6472b;--green:#2e624e;--rail:90px;--panel:420px;--space:clamp(20px,3vw,48px)}::selection{background:var(--tint-strong);color:var(--night)}input,textarea{caret-color:var(--rust)}*{scrollbar-color:var(--faint) transparent;scrollbar-width:thin}a{text-underline-offset:4px}button:focus-visible,a:focus-visible,summary:focus-visible{outline:2px solid var(--rust);outline-offset:4px}button,input,select{min-height:36px}h1,h2,h3{text-wrap:balance}p{text-wrap:pretty}svg{flex-shrink:0}html{scroll-padding-top:125px}.eyebrow{display:none}.page{padding:28px var(--space) 72px;max-width:1680px}.masthead{height:72px;padding:0 var(--space);position:relative;gap:20px;background:var(--card)}.brand{font-size:var(--fs-h2);letter-spacing:.06em;gap:8px;white-space:nowrap}.brand-mark{font-size:var(--fs-xl)}.brand small{font-size:var(--fs-micro);letter-spacing:.04em}.top-tools{gap:16px;font-size:var(--fs-label)}.top-tools button{padding:6px 0}.world-rail{padding:19px 8px;background:var(--tint);gap:8px}.rail-home{font-size:var(--fs-lead);padding:10px 5px 24px}.rail-link{font-size:var(--fs-small);padding:12px 8px;border:0;border-radius:3px;color:var(--night-line)}.rail-link em{display:none}.rail-link small{font-size:var(--fs-micro);color:var(--muted)}.rail-link.active{background:var(--night-2);color:var(--card);border:0}.rail-link.active small{color:var(--tint-strong)}.rail-link:hover:not(.active){background:var(--tint)}.rail-bottom{letter-spacing:.08em;font-size:var(--fs-micro);color:var(--muted)}.site-footer{font-size:var(--fs-caption);background:var(--card)}.action{gap:14px;padding:12px 18px;white-space:nowrap}.action svg,.workspace-location svg,.workspace-tools svg,.real-entry>span>svg,.real-entrances header svg,.atlas-callout svg,.discovery-entry>svg,.research-row-actions svg,.lens-link svg{width:19px;height:19px;display:inline-block;vertical-align:middle}.term{font-size:var(--fs-small)}.source-date{font-size:var(--fs-label);color:var(--muted);max-width:76ch;padding-top:26px}.system-intro{padding:36px 0 30px;display:flex;align-items:end;justify-content:space-between;gap:40px}.system-intro h1{font-size:clamp(30px,3.6vw,49px);letter-spacing:-.025em;line-height:1.45}.system-intro>p{font-size:var(--fs-body);max-width:31em;line-height:1.95;color:var(--muted)}.object-atlas{display:grid;grid-template-columns:290px minmax(0,1fr);border-top:1px solid var(--ink);border-bottom:1px solid var(--ink)}.world-index{display:flex;flex-direction:column;padding:12px 25px 12px 0}.world-index>button{display:flex;align-items:center;gap:19px;padding:14px 12px;text-align:left;flex:1;border-bottom:1px solid var(--line);border-radius:0}.world-index>button:last-child{border-bottom:0}.world-index>button[aria-pressed=true]{background:var(--tint)}.math-glyph{font:italic var(--fs-h2)/1 var(--serif);min-width:50px;text-align:center;color:var(--rust)}.world-index strong{font-size:var(--fs-text);display:block;font-weight:500}.world-index small{font-size:var(--fs-label);color:var(--muted);display:block;margin-top:3px}.object-feature{min-width:0;padding:18px 0 16px 28px;border-left:1px solid var(--line)}.specimen-head{display:flex;justify-content:space-between;font-size:var(--fs-label);color:var(--muted);margin-bottom:13px;gap:15px}.specimen{background:var(--night);position:relative;height:330px}.specimen.light{background:var(--tint)}.specimen canvas{height:100%}.specimen-label{position:absolute;bottom:0;left:0;right:0;padding:10px 15px;background:var(--night);color:var(--line);font-size:var(--fs-caption);line-height:1.5}.specimen.light .specimen-label{background:var(--tint);color:var(--night-line)}.specimen-invite{display:flex;align-items:center;justify-content:space-between;gap:24px;padding-top:20px}.specimen-invite h2{font-size:var(--fs-display);line-height:1.5}.specimen-invite p{font-size:var(--fs-label);margin-top:7px;color:var(--muted)}.horizon-line{display:grid;grid-template-columns:1fr 1fr;gap:50px;margin:28px 0 52px}.horizon-line h2{font:500 var(--fs-body) var(--sans);margin-bottom:11px;color:var(--green)}.horizon-line p{font-size:var(--fs-small);line-height:1.85;max-width:70ch}.horizon-line .term{margin-top:10px}.real-entrances header{display:flex;align-items:baseline;justify-content:space-between;gap:24px;padding-bottom:22px}.real-entrances h2{font-size:var(--fs-xl)}.real-entrances header a{font-size:var(--fs-small);white-space:nowrap}.real-entry{display:grid;grid-template-columns:190px 1fr 24px;align-items:center;gap:24px;padding:23px 0;border-top:1px solid var(--line)}.real-entry>span:first-child{font-size:var(--fs-small);color:var(--green)}.real-entry small{display:block;font-size:var(--fs-caption);color:var(--muted);margin-top:5px}.real-entry strong{font:500 var(--fs-h2)/1.5 var(--serif)}.real-entry:hover strong{color:var(--rust)}.atlas-callout{margin-top:52px;padding:30px 0;border-top:1px solid var(--ink);max-width:850px}.atlas-callout h2{font-size:var(--fs-display)}.atlas-callout p{font-size:var(--fs-body);margin:16px 0;max-width:66ch}.atlas-callout>a{font-size:var(--fs-body);color:var(--rust)}.discovery-layout{display:grid;grid-template-columns:224px minmax(0,1fr);gap:42px}.discovery-filters{align-self:start;position:sticky;top:18px}.search-box{display:flex;gap:9px;align-items:center;border:1px solid var(--line-strong);background:var(--card);padding:7px 10px}.search-box svg{width:18px;height:18px}.search-box input{width:100%;min-width:0;border:0;background:none;outline:0;font-size:var(--fs-small);color:var(--ink)}.search-box:focus-within{outline:2px solid var(--rust);outline-offset:3px}.search-box input::placeholder{color:var(--muted)}.discovery-filters h2{font:500 var(--fs-label)/1.6 var(--sans);margin:24px 0 8px;color:var(--muted)}.discovery-filters [role=group]{display:flex;flex-direction:column;gap:2px}.discovery-filters button{text-align:left;padding:7px 10px;font-size:var(--fs-small);border-radius:2px}.discovery-filters button[aria-pressed=true]{background:var(--tint);color:var(--night-2);font-weight:600}.filter-domain{display:block;font-size:var(--fs-label);margin-top:23px}.filter-domain select{display:block;width:100%;margin-top:10px}.result-count{font-size:var(--fs-label);color:var(--muted);padding:0 0 14px;border-bottom:1px solid var(--ink)}.discovery-entry{display:grid;width:100%;grid-template-columns:108px minmax(0,1fr) 20px;gap:20px;align-items:start;text-align:left;padding:23px 0;border-bottom:1px solid var(--line)}.entry-meta{font-size:var(--fs-label);color:var(--green)}.entry-meta small{display:block;font-size:var(--fs-caption);color:var(--muted);margin-top:5px}.entry-body strong{display:block;font:500 var(--fs-h2)/1.5 var(--serif)}.entry-body>span{display:block;font-size:var(--fs-label);line-height:1.85;color:var(--muted);margin-top:8px;max-width:70ch}.discovery-entry:hover strong{color:var(--rust)}.discovery-entry>svg{margin-top:7px}.discovery-empty{padding:40px 0}.discovery-empty h2{font-size:var(--fs-display)}.discovery-empty p{margin:18px 0}.discovery-empty button{border-bottom:1px solid var(--ink)}.research-row{display:grid;grid-template-columns:150px minmax(0,1fr) 185px;gap:30px;padding:30px 0;border-top:1px solid var(--line)}.research-row>div:first-child{font-size:var(--fs-small);line-height:1.8}.research-row>div:first-child small{display:block;margin-top:8px;color:var(--muted)}.research-row h2{font-size:var(--fs-display);line-height:1.5}.research-row h2 button{text-align:left;padding:0;font:inherit}.research-row p{font-size:var(--fs-body);line-height:1.95;margin-top:14px;max-width:65ch}.research-row>small{font-size:var(--fs-caption);line-height:1.9;color:var(--muted)}.research-row-actions{display:flex;gap:24px;margin-top:20px;align-items:center;font-size:var(--fs-small);color:var(--rust)}.research-row-actions button{border-bottom:1px solid var(--line);padding:0}.research-row-actions a{white-space:nowrap}.workspace-page{container-type:inline-size;padding-top:20px}.workspace-heading{padding:0 0 22px}.workspace-location{display:flex;align-items:center;gap:12px;font-size:var(--fs-label);color:var(--muted);margin-bottom:18px}.workspace-location>button{padding:0}.workspace-location .save-scene{margin-left:auto;padding:6px 14px;border:1px solid var(--line-strong);background:var(--card);color:var(--ink);white-space:nowrap}.workspace-heading h1{font-size:clamp(28px,3.1vw,42px);line-height:1.4;letter-spacing:-.02em;max-width:30em}.workspace-heading>p{font-size:var(--fs-body);line-height:1.9;color:var(--muted);max-width:85ch;margin-top:12px}.workspace-tools{display:flex;align-items:center;gap:22px;padding:0 0 12px;margin:0 0 23px;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:12;background:var(--paper);white-space:nowrap;overflow:auto}.workspace-tools button{font-size:var(--fs-label);display:inline-flex;gap:5px;align-items:center;padding:8px 0;flex-shrink:0}.workspace-tools button[aria-pressed=true]{color:var(--rust);box-shadow:inset 0 -2px currentColor}.workspace-tools button:hover{color:var(--rust)}.workspace-tools .journey-open{margin-left:auto}.workspace-page .chapter{padding-top:0}.workspace-page .workbench{border-top:0;padding-top:0}.workspace-page .roster-stage-heading h2{font-size:var(--fs-xl)}.workspace-page .study-workspace{margin-top:0}.workspace-page .work-research{padding-top:26px;margin-top:26px}.workspace-page .work-research h2{font-size:var(--fs-display)}.workspace-depth{margin-top:30px;border-top:1px solid var(--line);padding:18px 0}.workspace-depth>summary{font-size:var(--fs-small);color:var(--green)}.workspace-depth .object-connections{margin-top:28px}.workspace-depth>.study-after{padding-top:22px}.workspace-page .object-scenes{display:none}.workspace-page .field-bench{margin-top:0}.workspace-page .workshop-boundary{margin-top:20px}.notebook-journey{display:flex;align-items:center;gap:24px;padding:0 0 25px}.notebook-journey p{font-size:var(--fs-small);color:var(--muted)}.reader{width:var(--panel);background:var(--card);border-left:1px solid var(--line);box-shadow:none;overscroll-behavior:contain}.reader-tools{padding:12px 20px;background:var(--card)}#reader-body{padding:22px 24px 48px}#reader-body:focus{outline:0}#reader-body h2{font-size:var(--fs-display);line-height:1.5;margin:10px 0 20px}#reader-body h3{font-size:var(--fs-h3);line-height:1.6}#reader-body p{font-size:var(--fs-body);line-height:1.95}#reader-body small{font-size:var(--fs-label)}.lens-label{font-size:var(--fs-caption);color:var(--muted);line-height:1.8}.lens-section{margin:25px 0}.lens-section h3{margin:0 0 12px!important}.lens-link{display:block;width:100%;text-align:left;padding:18px 0;border-bottom:1px solid var(--line)}.lens-link strong{font:500 var(--fs-h3)/1.6 var(--serif);display:block}.lens-link small{display:block;line-height:1.85;color:var(--muted);margin-top:8px}.lens-link:hover strong{color:var(--rust)}.lens-source{display:block;font-size:var(--fs-label);color:var(--rust);padding:15px 0;border-bottom:1px solid var(--line);overflow-wrap:anywhere}.model-distance{padding:20px 0}.model-distance>div{padding:18px;background:var(--night-ink)}.model-distance>div>span{font-size:var(--fs-label);font-weight:600}.model-distance p{margin:10px 0 0!important;font-size:var(--fs-small)!important}.model-distance>svg{width:50px;height:35px;transform:rotate(90deg);margin:10px auto}.journey-list{padding-left:22px}.journey-list li{padding-left:6px;color:var(--green);border-bottom:1px solid var(--line)}.journey-list button{padding:17px 0;text-align:left;display:block;width:100%}.journey-list strong{display:block;font:500 var(--fs-lead)/1.6 var(--serif);margin:6px 0}.journey-list button>span{font-size:var(--fs-caption);color:var(--rust)}.journey-list button:disabled{opacity:1;background:var(--paper);padding-left:10px}.reader .term{display:inline-block;margin:8px 12px 8px 0;line-height:1.8}@container (max-width:880px){.roster-layout,.robot-fields,.robot-maps,.fluid-study-fields{grid-template-columns:minmax(0,1fr)!important}.workspace-tools{gap:17px}.workspace-heading h1{font-size:var(--fs-xl)}.study-anatomy{grid-template-columns:minmax(0,1fr)}.field-bench,.work-research{grid-template-columns:minmax(0,1fr)!important}.field-controls{border-left:0}.workspace-location #bridge-return{display:none}}@media(max-width:1100px){.system-intro{display:block}.system-intro p{max-width:60ch;margin-top:12px}.object-atlas{grid-template-columns:245px minmax(0,1fr)}.world-index{padding-right:15px}.world-index>button{gap:8px;padding:13px 7px}.specimen-invite{display:block}.specimen-invite .action{margin-top:15px}.research-row{grid-template-columns:120px minmax(0,1fr)}.research-row>small{grid-column:2}.reader{width:min(460px,70vw);box-shadow:-12px 6px 35px color-mix(in srgb,var(--night) 13%,transparent)}}@media(max-width:700px){:root{--rail:0px;--space:18px}.masthead{height:66px;padding:0 16px;margin-left:0}.brand{font-size:var(--fs-h3);gap:4px}.brand-mark{font-size:var(--fs-display);margin-right:4px}.brand small{font-size:var(--fs-micro)}.top-tools{gap:12px;font-size:var(--fs-caption)}.top-tools button:first-child{font-size:0;min-width:25px}.top-tools button:first-child span{font-size:var(--fs-h2);margin:0}.world-rail{position:sticky;inset:auto;z-index:25;display:flex;flex-direction:row;width:100%;height:49px;padding:0 10px;gap:3px;overflow:auto;border-bottom:1px solid var(--line);border-right:0;align-items:stretch}.rail-home,.rail-bottom,.rail-link small,.rail-link em{display:none}.rail-link{display:flex;align-items:center;justify-content:center;white-space:nowrap;flex:1 0 auto;padding:8px 11px;font-size:var(--fs-label);border:0;border-radius:0}.page{padding:20px 18px 50px}.system-intro{padding:25px 0 22px}.system-intro h1{font-size:var(--fs-xl);line-height:1.4}.system-intro p{font-size:var(--fs-small);margin-top:14px}.object-atlas{display:flex;flex-direction:column}.world-index{display:grid;grid-template-columns:repeat(4,1fr);padding:9px 0;gap:4px}.world-index>button{padding:9px 5px;justify-content:center;border:0}.world-index>button small,.math-glyph{display:none}.world-index strong{font-size:var(--fs-label)}.object-feature{padding:13px 0 16px;border:0;border-top:1px solid var(--line)}.specimen{height:270px}.specimen-head{font-size:var(--fs-caption)}.specimen-invite{display:flex;gap:12px;align-items:center}.specimen-invite h2{font-size:var(--fs-h2)}.specimen-invite p{font-size:var(--fs-caption)}.specimen-invite .action{margin:0;font-size:var(--fs-label);padding:11px 13px}.specimen-invite .action svg{display:none}.horizon-line{display:block;margin:24px 0 36px}.horizon-line>div+div{margin-top:22px}.horizon-line p{font-size:var(--fs-label)}.real-entrances header{display:block}.real-entrances h2{font-size:var(--fs-display)}.real-entrances header a{display:inline-block;margin-top:15px}.real-entry{grid-template-columns:minmax(0,1fr) 20px;gap:8px;padding:19px 0}.real-entry>span:first-child{grid-column:1/-1;display:flex;gap:12px;font-size:var(--fs-caption)}.real-entry small{margin:0}.real-entry strong{font-size:var(--fs-h3)}.atlas-callout{margin-top:36px}.atlas-callout h2{font-size:var(--fs-h2)}.atlas-callout p{font-size:var(--fs-small)}.discovery-layout{display:block}.discovery-filters{position:static}.discovery-filters [role=group]{flex-direction:row;overflow:auto;gap:4px;white-space:nowrap}.discovery-filters h2{font-size:var(--fs-caption);margin:18px 0 7px}.discovery-filters button{font-size:var(--fs-label);padding:7px 10px}.filter-domain{display:flex;gap:18px;align-items:center;margin:14px 0 25px}.filter-domain select{width:auto;flex:1;margin:0;font-size:var(--fs-label)}.discovery-results{margin-top:22px}.discovery-entry{grid-template-columns:minmax(0,1fr) 20px;gap:8px}.entry-meta{grid-column:1/-1;display:flex;gap:12px;font-size:var(--fs-caption)}.entry-meta small{margin:0}.entry-body strong{font-size:var(--fs-h3)}.entry-body>span{font-size:var(--fs-label)}.research-row{display:block;padding:24px 0}.research-row>div:first-child{display:flex;gap:18px;font-size:var(--fs-label)}.research-row>div:first-child small{margin:0}.research-row h2{font-size:var(--fs-display);margin-top:13px}.research-row p{font-size:var(--fs-small)}.research-row>small{display:block;margin-top:18px}.research-row-actions{gap:15px;flex-wrap:wrap;font-size:var(--fs-label)}.workspace-page{padding-top:17px}.workspace-location{font-size:var(--fs-caption);gap:7px;margin-bottom:15px;flex-wrap:wrap}.workspace-location svg{display:none}.workspace-location>span#bridge-return{display:none}.workspace-location .save-scene{font-size:var(--fs-caption);padding:5px 10px}.workspace-heading h1{font-size:var(--fs-display)}.workspace-heading>p{font-size:var(--fs-label);line-height:1.85;margin-top:10px}.workspace-heading{padding-bottom:15px}.workspace-tools{top:49px;gap:20px;padding-bottom:8px;margin-bottom:18px}.workspace-tools button{font-size:var(--fs-label)}.workspace-tools button svg{width:16px;height:16px}.workspace-depth>summary{font-size:var(--fs-label)}.notebook-journey{display:block}.notebook-journey p{margin-top:12px}.reader{top:187px;width:100%;height:calc(100dvh - 187px);border:0;border-top:1px solid var(--line);box-shadow:none;z-index:40}.reader-tools{padding:10px 18px}.reader-tools button{font-size:var(--fs-h2)}#reader-body{padding:18px 22px 40px}#reader-body h2{font-size:var(--fs-display)}.site-footer{padding:22px 18px;flex-wrap:wrap;font-size:var(--fs-micro)}.source-date{font-size:var(--fs-caption)}.notebook-page .room-head h1{font-size:var(--fs-xl)}.workspace-page .study-workspace{padding-left:10px;padding-right:10px}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}.entry-origin{display:flex;gap:15px;align-items:baseline;margin-top:14px;font-size:var(--fs-label);line-height:1.8}.entry-origin button{color:var(--rust);padding:0;border-bottom:1px solid var(--line);white-space:nowrap}.entry-origin span{color:var(--muted)}.question-note{display:block;font-size:var(--fs-small);margin:25px 0}.question-note textarea{display:block;width:100%;min-height:180px;margin-top:12px;background:var(--paper);padding:14px;border:1px solid var(--line);font-size:var(--fs-body);color:var(--ink);resize:vertical}.question-note textarea::placeholder{color:var(--muted)}.comparison-bench{display:grid;grid-template-columns:1fr 1fr;gap:36px}.comparison-bench>article{min-width:0}.comparison-bench label{display:flex;gap:20px;align-items:center;font-size:var(--fs-label);margin-bottom:18px}.comparison-bench select{flex:1;font-size:var(--fs-body)}.compare-figure{background:var(--night)}.compare-figure.light{background:var(--tint)}.compare-figure canvas{height:270px}.compare-caption{font-size:var(--fs-caption);color:var(--muted);margin:10px 0 18px}.comparison-bench h2{font-size:var(--fs-display)}.compare-fact{border-top:1px solid var(--line);padding:18px 0;margin-top:15px}.compare-fact h3{font:500 var(--fs-small) var(--sans);color:var(--green);margin-bottom:12px}.compare-fact p{font-size:var(--fs-body);line-height:1.95;max-width:65ch}.compare-fact .term{margin-top:10px}.comparison-links{margin-top:44px;padding-top:25px;border-top:1px solid var(--ink)}.comparison-links>h2{font-size:var(--fs-display);margin-bottom:18px}.comparison-links article{padding:20px 0;max-width:80ch}.comparison-links h3{font-size:var(--fs-h2);margin-bottom:12px}.comparison-links p{font-size:var(--fs-body);margin-bottom:14px;line-height:1.9}.comparison-links a{color:var(--rust);font-size:var(--fs-small)}@media(max-width:700px){.entry-origin{display:block}.entry-origin span{display:block;margin-top:6px;font-size:var(--fs-caption)}.top-tools button:first-child{display:inline-flex}.comparison-bench{gap:15px}.comparison-bench label{display:block;font-size:var(--fs-caption)}.comparison-bench select{display:block;width:100%;font-size:var(--fs-caption);margin-top:7px;padding:8px 3px}.compare-figure canvas{height:160px}.comparison-bench h2{font-size:var(--fs-h3)}.compare-fact p{font-size:var(--fs-label)}.compare-caption{font-size:var(--fs-micro)}.compare-fact .term{font-size:var(--fs-caption)}.comparison-bench .lens-link strong{font-size:var(--fs-lead)}.comparison-links>h2{font-size:var(--fs-display)}}@media(max-width:700px){.comparison-bench{display:flex;flex-direction:column;gap:35px}.compare-figure canvas{height:260px}.comparison-bench h2{font-size:var(--fs-display)}.compare-fact p{font-size:var(--fs-small)}.comparison-bench label{display:flex}.comparison-bench select{margin:0;font-size:var(--fs-small);width:auto}.compare-caption{font-size:var(--fs-caption)}.comparison-bench>article+article{padding-top:28px;border-top:1px solid var(--ink)}}.masthead .brand .project-subtitle{display:block;font:var(--fs-micro)/1.4 var(--sans);color:var(--muted);letter-spacing:.03em;margin-top:6px}.project-intro>p{max-width:34em}.project-intro>p strong{display:block;color:var(--ink);font-weight:500;margin-bottom:6px}.millennium-context{display:flex;align-items:baseline;justify-content:space-between;gap:16px 30px;padding:0 0 18px;color:var(--muted);font-size:var(--fs-label)}.millennium-context p{max-width:76ch;line-height:1.8}.millennium-context button{display:inline-flex;align-items:center;gap:8px;flex-shrink:0;padding:0;font-size:var(--fs-label);color:var(--rust)}.millennium-context svg{width:17px;height:17px}.millennium-problems{list-style:none;padding:0;margin:24px 0 16px;border-top:1px solid var(--line)}.millennium-problems li{display:flex;align-items:baseline;justify-content:space-between;gap:14px;padding:10px 0;border-bottom:1px solid var(--line)}.millennium-problems button{padding:0;min-height:34px;text-align:left;font-size:var(--fs-small);color:var(--green);text-decoration:underline;text-decoration-color:var(--line);text-underline-offset:4px}.millennium-problems span{flex-shrink:0;font-size:var(--fs-caption);color:var(--muted)}#reader-body .millennium-status{font-size:var(--fs-label);color:var(--muted)}:root{--rail: 0px;--masthead-height: 76px}.masthead{height:var(--masthead-height);margin:0;padding:0 var(--space);display:flex;gap:20px;flex-wrap:nowrap}.masthead .brand{margin-right:auto}.page{margin-inline:auto}.workspace-tools{position:static;gap:22px;margin-bottom:18px;padding-bottom:12px}.workspace-tools>span{font-size:var(--fs-caption);color:var(--muted);padding-right:4px}.workspace-tools button{font-size:var(--fs-label)}.workspace-heading .object-location{margin-bottom:18px;gap:16px;flex-wrap:wrap}.current-world{padding-left:16px;border-left:1px solid var(--line)}.scene-switch{font-size:var(--fs-label);padding:0;border-bottom:1px solid var(--line);white-space:nowrap}.scene-switch span{margin-left:6px}.workspace-heading .object-tools{gap:17px}.workspace-heading .object-tools .text-link{padding:4px 0;font-size:var(--fs-label)}.workspace-depth>h2{font-size:var(--fs-display);margin:10px 0 26px}.scene-choices .lens-link[aria-current]{border-left:2px solid var(--green);padding-left:12px;background:var(--tint)}.scene-choices .lens-link strong{font-size:var(--fs-text);font-weight:500}.search-hint{margin-top:20px;color:var(--muted);font-size:var(--fs-small)}.reader{top:var(--masthead-height);height:calc(100dvh - var(--masthead-height))}#reader-body h1{font-size:var(--fs-display);line-height:1.5;margin:10px 0 20px}.reader[role=main] #reader-body h2{font-size:var(--fs-h3);line-height:1.6;margin:0 0 12px}.launch-state{padding:80px var(--space);max-width:850px}.launch-state h1{font-size:var(--fs-xl)}.launch-state p{margin:20px 0}.launch-state a{display:inline-block;margin:15px 0 0 20px;font-size:var(--fs-body);color:var(--rust)}[data-project-version]{font-size:inherit;margin-left:12px}@media(max-width:1280px){.reader{width:min(460px,65vw);box-shadow:-12px 6px 35px color-mix(in srgb,var(--night) 13%,transparent)}}@media(max-width:700px){.masthead{padding:0 16px;gap:12px}.masthead .brand{font-size:var(--fs-h3);margin-right:auto}.masthead .brand .project-subtitle{font-size:var(--fs-micro);letter-spacing:0;margin-top:4px}.masthead .top-tools{gap:12px}.masthead .top-tools button[data-global]{display:inline-flex;align-items:center;font-size:var(--fs-caption);white-space:nowrap}.masthead .top-tools button[data-global=search]>span{display:none}.millennium-context{display:block;font-size:var(--fs-caption);padding-bottom:14px}.millennium-context button{margin-top:5px;font-size:var(--fs-caption)}.project-intro{padding-bottom:16px}.workspace-heading .object-location{gap:5px 12px;margin-bottom:15px}.current-world{border:0;padding:0}.scene-switch{margin-left:auto;font-size:var(--fs-caption)}.workspace-heading .object-tools{gap:14px;width:100%;margin-left:0}.workspace-heading .object-tools .secondary{margin-left:auto;font-size:var(--fs-caption);padding:5px 10px}.workspace-heading .object-tools .text-link{font-size:var(--fs-caption)}.workspace-tools{gap:16px;white-space:normal;flex-wrap:wrap}.workspace-tools>span{display:none}.workspace-tools button{font-size:var(--fs-caption)}.workspace-depth>h2{font-size:var(--fs-h2)}.reader{top:var(--masthead-height);width:100%;height:calc(100dvh - var(--masthead-height));box-shadow:none}#reader-body h1{font-size:var(--fs-display)}}@media(max-width:360px){.masthead .brand-mark{display:none}.masthead .top-tools{gap:9px}}html{scrollbar-gutter:stable;scroll-padding-top:calc(var(--masthead-height) + 16px)}:root{--masthead-height: 76px}.masthead{position:sticky;top:0;z-index:60;display:grid;grid-template-columns:auto 1fr auto;gap:24px;height:var(--masthead-height)}.primary-nav{display:flex;align-items:center;justify-content:center;gap:clamp(12px,1.7vw,26px);height:100%}.primary-nav a{display:inline-flex;align-items:center;height:100%;font-size:var(--fs-label);white-space:nowrap;border-bottom:2px solid transparent}.primary-nav a[aria-current]{color:var(--rust);border-bottom-color:currentColor}.primary-nav a:hover{color:var(--rust)}.top-tools button:disabled{color:var(--muted);opacity:.65;cursor:default}.current-world{padding-left:0;border:0}.reader{top:var(--masthead-height);width:min(440px,65vw);height:calc(100dvh - var(--masthead-height));border-left:1px solid var(--line);box-shadow:-10px 0 26px color-mix(in srgb,var(--ink) 9%,transparent);z-index:50}.reader-context{font-size:var(--fs-caption);line-height:1.8;color:var(--muted);padding:14px 24px 0}.reader-tools{min-height:60px}.reader-tools button:disabled{visibility:hidden}#reader-body{padding-top:16px}.entry-intent{display:block;font-size:var(--fs-label);color:var(--rust);margin-top:8px;font-weight:400}.discovery-entry{grid-template-columns:108px minmax(0,1fr) max-content}.entry-actions{grid-column:2 / -1;display:flex;gap:24px;align-items:center;font-size:var(--fs-label)}.entry-actions button{padding:0;border-bottom:1px solid var(--line)}.entry-actions a{color:var(--rust)}.system-intro,.connections-intro{padding-top:24px}@media(max-width:1100px){:root{--masthead-height: 122px}.masthead{grid-template-columns:1fr auto;grid-template-rows:70px 52px;gap:0 18px}.primary-nav{grid-column:1/-1;grid-row:2;justify-content:space-between;gap:14px}.masthead .top-tools{grid-column:2;grid-row:1}}@media(max-width:700px){:root{--masthead-height: 152px}.masthead{grid-template-rows:64px 88px;gap:0 10px;padding:0 16px}.primary-nav{display:grid;grid-template-columns:repeat(3,1fr);grid-template-rows:44px 44px;gap:0 12px}.primary-nav a{justify-content:center;font-size:var(--fs-label)}.masthead .brand-mark{display:none}.masthead .top-tools{gap:10px}.masthead .top-tools button[data-global]{min-height:40px;font-size:var(--fs-caption)}.reader{inset:auto 0 0;width:100%;height:58dvh;max-height:calc(100dvh - var(--masthead-height) - 52px);border:0;border-top:1px solid var(--line);box-shadow:0 -10px 26px color-mix(in srgb,var(--ink) 9%,transparent)}.reader-context{padding:8px 20px 0}.reader-tools{padding:8px 18px;min-height:48px}.discovery-entry{grid-template-columns:minmax(0,1fr) max-content}.entry-actions{grid-column:1/-1;flex-wrap:wrap;gap:8px 20px}.system-intro,.connections-intro{padding-top:14px}}:root{--paper:#f5f2eb;--card:#fffdf7;--tint:#e4e9da;--tint-strong:#d3dcc6;--tint-warm:#efe6da;--rust-tint:#e9cdb9;--ink:#223d36;--muted:#52685e;--faint:#8a998f;--line:#cbd3c9;--line-strong:#a9b5a4;--rust:#a6472b;--rust-soft:#c77a55;--rust-deep:#7f3b26;--green:#2e624e;--green-soft:#6f9278;--olive:#586b50;--olive-dark:#3f5f3d;--lime:#c9d7a4;--amber:#efd79c;--blue:#417c8c;--blue-soft:#8fb0b8;--gold:#c9a95a;--peach:#eb9e6e;--rust-mid:#a15c3c;--blue-bright:#4f9bb1;--slate:#345967;--umber:#6f6958;--night:#183831;--night-2:#244a40;--night-line:#35514b;--night-ink:#e8eddc;--night-muted:#9fb3a5;--white:#ffffff;--black:#000000;--fs-nano:8px;--fs-micro:10px;--fs-caption:11px;--fs-label:12px;--fs-small:13px;--fs-body:14px;--fs-text:15px;--fs-lead:17px;--fs-h3:20px;--fs-h2:23px;--fs-display:27px;--fs-xl:32px;--sp-1:4px;--sp-2:8px;--sp-3:12px;--sp-4:16px;--sp-5:24px;--sp-6:32px;--control-h:36px;--control-radius:2px;--control-accent:var(--green);--control-value:var(--rust);--hint-ink:var(--muted);--legend-ink:var(--muted);--object-min-h:clamp(300px,52vh,560px);--side-w:300px;--world-forest:var(--night);--world-paper:var(--paper);--world-rust:var(--rust);--world-line:var(--line);--work-ink:var(--ink);--work-muted:var(--muted);--work-line:var(--line);--work-current:var(--rust);--work-reference:var(--blue);--work-surface:var(--card);--studio-ink:var(--ink);--studio-muted:var(--muted);--studio-line:var(--line);--studio-warm:var(--rust);--studio-green:var(--green);--studio-surface:var(--card)}#main .workspace-page>:not(header):not(.workspace-depth) :is(h2,h3){font-family:var(--serif);font-size:var(--fs-h3);line-height:1.4;font-weight:400;letter-spacing:0;margin-top:0}#main .workspace-page>:not(header):not(.workspace-depth) :is(h2,h3) br{display:none}#main .workspace-page>:not(header):not(.workspace-depth) :is(h4,h5,h6){font-family:var(--sans);font-size:var(--fs-small);line-height:1.5;font-weight:600;letter-spacing:0}#main .workspace-page :is(input[type=range],input[type=checkbox],input[type=radio]){accent-color:var(--control-accent)}#main .workspace-page :is(.field-range,.world-range,.study-range,.control,.work-range)>:is(label,span){font-size:var(--fs-label);color:var(--muted)}#main .workspace-page :is(.field-range,.world-range,.study-range) output,#main .workspace-page .work-range input[type=number]{color:var(--control-value);font-variant-numeric:tabular-nums}#main .workspace-page select{min-height:var(--control-h);font-size:var(--fs-small);color:var(--ink);border-radius:var(--control-radius)}#main .workspace-page :is(.field-controls,.field-actions,.engine-controls,.work-history,.control-row,.seg,.world-actions,.world-controls,.studio-actions,.field-transport,.fold-sequence,.cooling-presets,.gauge-tools,.check-row,.brain-presets,.bsd-try,.work-baseline-tools,.dispatch-map-tools,.dispatch-question,.dispatch-check-actions,.roster-brush,.study-select,.formula-editor,.rh-tools,.cooling-compare-tools,.interval-controls,.quantum-controls,.world-tools)>button:not(.term):not(.text-link){min-height:var(--control-h);font-family:var(--sans);font-size:var(--fs-label);border-radius:var(--control-radius)}#main .workspace-page :is(.hint,.field-caption,.work-caption,.work-model-tag,.app-plot-legend,.roster-legend,.study-note){font-size:var(--fs-caption);color:var(--hint-ink);line-height:1.6}#main .workspace-page :is(.night,.flow-fields,[class*=stage]) :is(.hint,.field-caption,.work-caption,.app-plot-legend){color:inherit}#main .adjacent-workbench>h2{margin:0 0 var(--sp-2)}@media(min-width:1101px){#main .adjacent-workbench:not(:has(>svg)){display:grid;grid-template-columns:minmax(0,1fr) var(--side-w);grid-template-rows:repeat(8,auto) minmax(0,1fr);column-gap:var(--sp-6);row-gap:0;align-items:start}#main .adjacent-workbench:not(:has(>svg))>*{grid-column:1/-1}#main .adjacent-workbench:not(:has(>svg))>:is(h2,.work-caption,p:not(.adjacent-conclusion),.work-model-tag,.work-history,.engine-controls,seven-lattice){grid-column:2}#main .adjacent-workbench:not(:has(>svg))>.engine-controls{flex-direction:column;align-items:stretch;gap:var(--sp-3)}#main .adjacent-workbench:not(:has(>svg))>.engine-controls>*{width:auto;flex:none}#main .adjacent-workbench:not(:has(>svg))>.work-history{flex-wrap:wrap;margin:var(--sp-3) 0}#main .adjacent-workbench:not(:has(>svg))>:is(seven-drawn-curve,seven-particle-box),#main .adjacent-workbench:not(:has(>svg,>seven-drawn-curve,>seven-particle-box))>figure.diffusion-observatory{grid-column:1;grid-row:1/span 9;margin-top:0}}@media(max-width:1100px){#main .adjacent-workbench:not(:has(>svg)){display:flex;flex-direction:column}#main .adjacent-workbench:not(:has(>svg))>h2{order:-3}#main .adjacent-workbench:not(:has(>svg))>:is(seven-drawn-curve,seven-particle-box),#main .adjacent-workbench:not(:has(>svg,>seven-drawn-curve,>seven-particle-box))>figure.diffusion-observatory{order:-2}#main .adjacent-workbench:not(:has(>svg))>.engine-controls{order:-1}}#main .scale-stage{display:flex;flex-direction:column}#main .scale-stage>canvas{flex:1 1 auto;height:auto;min-height:320px}#main figure.diffusion-observatory:not(:has(>:nth-child(2))){grid-template-columns:minmax(0,1fr)}#main .engine-controls label:has(>input[type=checkbox]){display:flex;align-items:center;gap:var(--sp-2);font-size:var(--fs-label);color:var(--muted)}#main .engine-controls label:has(>input[type=checkbox])>input{order:-1;margin:0}@media(max-width:700px){#main :is(.wave-lab,.quantum-layout,.interval-desk,.roster-layout,.hodge-degrees)>:is(.stage,.quantum-stage,.prime-window,.roster-sheet,div:has(>.diamond)){order:-1}}@media(min-width:1101px){#main .numerics-intro{grid-template-columns:minmax(0,1fr) minmax(0,2fr);align-items:start}#main .numerics-intro .numerics-controls{grid-template-columns:repeat(4,minmax(0,1fr));column-gap:var(--sp-4)}}@media(max-width:700px){#main .study-workspace{display:flex;flex-direction:column}#main .study-workspace>*{order:2}#main .study-workspace>:is(.study-controls,div:has(figure)){order:0}#main .study-workspace>:is(.study-instruction,.study-caption){order:1}#main .bsd-workbench,#main .brain-workbench{display:flex;flex-direction:column}#main .bsd-workbench>.work-topline,#main .brain-workbench>.work-topline{order:-3}#main .bsd-workbench>.bsd-relation-layout,#main .brain-workbench>:is(.brain-view-tabs,.brain-observatory){order:-2}#main .sat-layout>div:has(>.search-tree){order:-1}#main .hodge-degrees>div:has(>.diamond){display:flex;flex-direction:column}#main .hodge-degrees .diamond{order:-1}}#main .ecm-trace{min-height:0}#main .ecm-trace li{grid-template-columns:minmax(9em,max-content) minmax(0,1fr);align-items:baseline}#main .ecm-equation{padding:var(--sp-5)}@media(min-width:701px){#main .search-tree canvas{height:280px}}#main .hodge-degrees .diamond{width:max-content;max-width:100%;margin-inline:auto}@media(max-width:700px){#main .fluid-study:has(>.numerics-intro){display:flex;flex-direction:column}#main .fluid-study>.numerics-intro{order:1}#main .fluid-study>:is(.work-concepts,seven-evidence){order:2}}@media(min-width:701px){#main div:has(>.ecm-equation){display:grid;grid-template-columns:minmax(0,2fr) minmax(0,3fr);gap:var(--sp-5);align-items:start}#main .ecm-trace{padding:0;margin:0}}@media(max-width:700px){#main .search-tree canvas{height:240px}}:root{--data-1:#48796a;--data-2:#b56240;--data-3:#5681a4;--data-4:#c69641;--data-ink:var(--ink);--data-muted:var(--muted);--grid:var(--line)}#main .ecm-equation{background:none;border-left:3px solid var(--tint-strong);padding:var(--sp-2) var(--sp-5)}#main .ecm-equation h2{margin:var(--sp-2) 0}@media(max-width:700px){#main .workspace-heading .object-location{margin-bottom:var(--sp-2)}#main .workspace-heading>p{margin-top:var(--sp-1);line-height:1.6}#main .workspace-page>.workspace-tools{margin-bottom:var(--sp-3);padding-bottom:var(--sp-1)}}@media(max-width:700px){#main .field-live{display:flex;flex-direction:column}#main .field-live>.field-inline-controls{order:1}#main .field-live>.field-verdict{order:2}}#main :is(.exchange span,.dispatch-edit .dispatch-unit){color:var(--hint-ink)}@media(max-width:700px){#main .world-shell.scene-elliptic{display:flex;flex-direction:column}#main .world-shell.scene-elliptic>.world-workbench{display:contents}#main .world-shell.scene-elliptic>.world-workbench>.world-object{order:1}#main .world-shell.scene-elliptic>#elliptic-exchange{order:2;margin:var(--sp-4) 0}#main .world-shell.scene-elliptic>.world-workbench>:not(.world-object){order:3}#main .world-shell.scene-elliptic>:not(.world-workbench,#elliptic-exchange):not(:first-child){order:4}}#main .tide-workbench{display:grid;grid-template-columns:minmax(0,1fr) var(--side-w);column-gap:var(--sp-6);align-items:start}#main .tide-workbench>details{grid-column:1/-1}#main .tide-figure{margin:0;min-width:0}#main .tide-figure>figcaption{display:flex;flex-wrap:wrap;align-items:baseline;justify-content:space-between;gap:var(--sp-2) var(--sp-4);margin-bottom:var(--sp-2)}#main .workspace-page .tide-workbench .tide-figure>figcaption>h2{font-size:var(--fs-small);font-family:var(--sans);font-weight:600;margin:0}#main .tide-legend{display:flex;flex-wrap:wrap;align-items:center;gap:var(--sp-1) var(--sp-2);font-size:var(--fs-caption);color:var(--legend-ink)}#main .tide-legend i{display:inline-block;width:22px;height:0;border-top:2px solid var(--green)}#main .tide-legend i.tide-predicted{border-top:2px dashed var(--rust-mid);margin-left:var(--sp-2)}#main .tide-legend>span{margin-left:var(--sp-2)}#main .tide-plot{display:block;width:100%;height:auto;color:var(--ink);max-height:min(460px,60vh)}#main .tide-plot text{font-size:var(--fs-caption)}#main .tide-hour{display:flex;align-items:center;gap:var(--sp-3);font-size:var(--fs-label);color:var(--muted);margin-top:var(--sp-2)}#main .tide-hour input{flex:1}#main .tide-figure [data-point]{font-size:var(--fs-small);font-variant-numeric:tabular-nums;margin-top:var(--sp-1)}#main .tide-side{display:flex;flex-direction:column;gap:var(--sp-4);font-size:var(--fs-body)}#main .tide-side label{display:flex;flex-direction:column;gap:var(--sp-1);font-size:var(--fs-label);color:var(--muted)}#main .tide-side [data-verdict]{border-left:2px solid var(--green);padding-left:var(--sp-3)}#main .tide-side [data-verdict][data-pass=false]{border-left-color:var(--rust)}@media(max-width:1100px){#main .tide-workbench{display:flex;flex-direction:column;gap:var(--sp-4)}#main .tide-plot text{font-size:calc(var(--fs-caption) * 2)}}#main .ecm-trace li.pending{color:var(--muted);border-bottom-style:dashed}#main .ecm-trace li.pending strong{font:var(--fs-small) var(--sans);color:var(--muted)}#main .numerics-wait:has(.numerics-initial){display:block;min-height:0;background:none;text-align:left;color:var(--hint-ink)}#main .numerics-wait>p{font-size:var(--fs-caption);margin-top:var(--sp-2)}

:root{--masthead-height: 72px}.masthead{grid-template-columns:auto 1fr auto;grid-template-rows:none;height:var(--masthead-height)}.primary-nav{display:flex;grid-column:auto;grid-row:auto;justify-content:center;gap:clamp(18px,3vw,44px)}.primary-nav a{font-size:var(--fs-small);letter-spacing:.08em}.masthead .top-tools{grid-column:auto;grid-row:auto}.masthead .top-tools button[data-global=search]{font-size:var(--fs-label);padding:6px 12px;border:1px solid var(--line);border-radius:2px;background:var(--card)}.masthead .top-tools button[data-global=search]>span{display:inline;margin-left:4px}@media(max-width:1100px){:root{--masthead-height: 72px}.masthead{grid-template-columns:auto 1fr auto;grid-template-rows:none;gap:0 18px}.primary-nav{grid-column:auto;grid-row:auto;justify-content:center}}@media(max-width:700px){:root{--masthead-height: 58px}.masthead{grid-template-columns:auto 1fr auto;grid-template-rows:none;gap:0 8px;padding:0 16px}.masthead .brand{font-size:var(--fs-lead)}.masthead .brand .project-subtitle{display:none}.primary-nav{display:flex;grid-template-columns:none;grid-template-rows:none;gap:2px;justify-content:center}.primary-nav a{padding:0 10px;font-size:var(--fs-small);letter-spacing:.04em}.masthead .top-tools button[data-global=search]{padding:4px 9px;min-height:36px}.masthead .top-tools button[data-global=search]>span{margin:0}.masthead .top-tools button[data-global=search]{font-size:0}.masthead .top-tools button[data-global=search]>span{font-size:var(--fs-lead)}}.site-footer .footer-notes{color:inherit;text-decoration:none}.site-footer .footer-notes:hover{color:var(--rust)}.site-footer #note-count{color:var(--rust);margin-left:4px}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}.site-page{max-width:1320px}.site-page h1,.site-page h2,.site-page h3{font-family:var(--serif);font-weight:500}.route-notice{font-size:var(--fs-small);color:var(--muted);background:var(--tint);padding:10px 14px;margin:0 0 22px;display:flex;flex-wrap:wrap;gap:6px 14px;align-items:baseline}.route-notice a{color:var(--rust)}.text-link{color:var(--rust);padding:0;min-height:0}.status-open,.status-eval,.status-solved{font-style:normal}.door-status i{display:inline-block;width:8px;height:8px;border-radius:50%;margin-right:7px;vertical-align:1px;background:var(--rust)}.door-status i.status-eval{background:var(--gold)}.door-status i.status-solved{background:var(--green)}.home-page{padding-top:38px}.home-head{display:grid;grid-template-columns:minmax(0,1fr);gap:10px;padding-bottom:26px;border-bottom:1px solid var(--ink)}.home-head h1{font-size:clamp(28px,3.4vw,44px);line-height:1.3;letter-spacing:-.01em}.home-head p{color:var(--muted);font-size:var(--fs-body);line-height:1.9}.doors{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));gap:18px;margin-top:26px}.door{grid-column:span 3;display:flex;flex-direction:column;background:var(--card);border:1px solid var(--line);color:inherit;text-decoration:none;min-height:360px;transition:border-color .15s,transform .15s}.door:nth-child(n+5){grid-column:span 4}.door:hover{border-color:var(--ink)}.door:hover .door-go{color:var(--rust)}.door:focus-visible{outline:2px solid var(--rust);outline-offset:3px}.door-face{flex:0 0 auto;height:200px;padding:14px;display:flex;align-items:center;justify-content:center;border-bottom:1px solid var(--line);overflow:hidden;pointer-events:none;background:var(--paper)}.door-face>*{display:block;width:100%;height:100%}#main .door-face svg{display:block;width:100%;height:100%;max-height:172px;cursor:default}.door-face text,.door-face title{display:none}.door-face [data-face]{display:flex;align-items:center;justify-content:center}.door-face figure{margin:0;width:100%;height:100%;display:flex;align-items:center;justify-content:center;border:0;padding:0;background:none}#main .door-face figure>:not(svg){display:none}.door-text{padding:16px 18px 18px;display:flex;flex-direction:column;gap:8px;flex:1}.door-text h2{font-size:var(--fs-h3);line-height:1.45}.door-question{font-size:var(--fs-body);line-height:1.8;color:var(--ink)}.door-status{font-size:var(--fs-label);color:var(--muted)}.door-go{margin-top:auto;font-size:var(--fs-small);color:var(--green);font-weight:600}.home-foot{margin-top:26px;font-size:var(--fs-small);color:var(--muted);display:flex;flex-wrap:wrap;gap:8px 16px;align-items:baseline}.home-compare{margin-top:18px;border-top:1px solid var(--line)}.home-compare>summary{cursor:pointer;padding:14px 0;font-size:var(--fs-small);color:var(--ink)}.home-compare-table{display:grid;font-size:var(--fs-small);line-height:1.8}.home-compare-table>div{display:grid;grid-template-columns:200px minmax(0,1fr) minmax(0,1fr);gap:20px;padding:12px 0;border-top:1px solid var(--line)}.home-compare-head{color:var(--muted);font-size:var(--fs-caption)}.home-compare-table [role=rowheader] a{color:var(--ink);font-family:var(--serif);font-size:var(--fs-text)}.home-compare-table [role=rowheader] small{display:block;color:var(--muted);font-size:var(--fs-caption)}@media(max-width:1100px){.door,.door:nth-child(n+5){grid-column:span 6}.door:last-child{grid-column:span 6}}@media(max-width:700px){.home-page{padding-top:20px}.home-head{display:block;padding-bottom:14px}.home-head h1{font-size:var(--fs-display)}.home-head p{margin-top:8px;font-size:var(--fs-small)}.doors{gap:10px;margin-top:14px}.door,.door:nth-child(n+5),.door:last-child{grid-column:span 6;min-height:0}.door-face{height:124px;padding:8px}#main .door-face svg{max-height:108px}.door-text{padding:10px 10px 12px;gap:5px}.door-text h2{font-size:var(--fs-small)}.door-question{font-size:var(--fs-caption);line-height:1.65}.door-status,.door-go{font-size:var(--fs-micro)}.home-compare-table>div{grid-template-columns:1fr;gap:6px}.home-compare-head{display:none!important}}.world-page{display:grid;grid-template-columns:168px minmax(0,1fr);gap:40px;padding-top:26px}.section-index{position:sticky;top:calc(var(--masthead-height) + 22px);align-self:start;display:flex;flex-direction:column;gap:2px;font-size:var(--fs-small)}.section-index a{color:var(--muted);text-decoration:none;padding:7px 10px;border-left:2px solid var(--line)}.section-index a:hover{color:var(--rust)}.section-index a[aria-current]{color:var(--ink);border-left-color:var(--rust);background:var(--tint)}.section-index .section-index-world{color:var(--ink);font-family:var(--serif);font-size:var(--fs-lead);border:0;padding:0 10px 12px}.world-sections{min-width:0}.world-section{padding:8px 0 56px;border-bottom:1px solid var(--line);scroll-margin-top:calc(var(--masthead-height) + 12px)}.world-section+.world-section{padding-top:40px}.section-label{font-size:var(--fs-label);color:var(--rust);letter-spacing:.08em;margin:0 0 8px}.world-section>h2{font-size:var(--fs-xl);line-height:1.4;margin:0 0 22px}.world-kicker{font-size:var(--fs-label);color:var(--muted);display:flex;flex-wrap:wrap;gap:4px 14px;margin:0 0 6px}.world-kicker span{color:var(--ink)}.world-kicker .section-label{color:var(--rust);margin:0}.world-ask h1{font-size:clamp(26px,3vw,38px);line-height:1.3;margin:0 0 6px;letter-spacing:-.01em;max-width:30em}.world-formal{font-size:var(--fs-small);line-height:1.85;color:var(--ink);max-width:90ch;margin-bottom:8px;display:flex;flex-wrap:wrap;align-items:baseline;gap:0 16px}.world-formal>p{margin:0}.world-formal details[open]{flex-basis:100%}.world-formal>p>span,.world-formal-links{font-size:var(--fs-caption);color:var(--muted)}.world-formal>p>span{border:1px solid var(--line);padding:1px 6px;margin-right:8px;border-radius:2px}.world-formal details{margin-top:0}.world-formal summary,.section-more summary,.known-refs>summary,[data-gap-check] summary,.branch details summary{cursor:pointer;font-size:var(--fs-label);color:var(--green)}.world-formal details p{margin-top:8px;color:var(--muted)}.world-formal-links{display:flex;flex-wrap:wrap;gap:8px 16px;align-items:center}.world-formal-links a{color:var(--rust)}.world-device{margin-top:6px}.world-device-tools{display:flex;flex-wrap:wrap;gap:10px 22px;align-items:center;margin-top:14px;font-size:var(--fs-small)}.world-device-tools a{color:var(--rust)}.section-scenes{display:flex;flex-wrap:wrap;gap:8px 10px;align-items:center;margin-top:22px;font-size:var(--fs-small)}.section-scenes>span:first-child{color:var(--muted);font-size:var(--fs-label);margin-right:4px}.section-scenes a{color:var(--ink);text-decoration:none;border:1px solid var(--line-strong);background:var(--card);padding:5px 12px;border-radius:999px}.section-scenes a:hover{border-color:var(--rust);color:var(--rust)}.section-lede{max-width:80ch;padding:0 0 20px;margin-bottom:20px;border-bottom:1px solid var(--line)}.section-lede h3,.obstacles h3,.known-list h3,.known-pair h3{font-size:var(--fs-h3);line-height:1.5;margin:0 0 8px}.section-lede p,.obstacles p,.known-list p,.known-pair p{font-size:var(--fs-body);line-height:1.9}.section-more{margin-top:6px}.section-more p{color:var(--muted);margin-top:6px}.section-go{display:inline-block;margin-top:10px;font-size:var(--fs-small);color:var(--rust)}.obstacles{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.obstacles>article{background:var(--card);border:1px solid var(--line);padding:18px 20px}.obstacles>.device-notes,.known-list>.device-notes,.device-notes seven-device-notes{display:contents}.obstacles .device-notes p,.known-list .device-notes p{background:var(--card);border:1px solid var(--line);padding:18px 20px;margin:0}.device-notes p b{display:block;font-family:var(--serif);font-weight:500;font-size:var(--fs-h3);margin-bottom:6px}.device-notes .sig-bound b{display:inline}.section-terms{display:flex;flex-wrap:wrap;gap:8px 14px;margin-top:18px}.known-pair{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0;border:1px solid var(--ink);margin-bottom:18px}.known-pair>div{padding:18px 20px}.known-pair>div+div{border-left:1px solid var(--ink);background:var(--tint)}.known-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.known-list>article{background:var(--card);border:1px solid var(--line);padding:18px 20px}.known-research small{display:block;font-size:var(--fs-caption);color:var(--muted);margin-bottom:6px}.known-research h3+p{margin-bottom:12px}.known-research a{font-size:var(--fs-small);color:var(--rust);overflow-wrap:anywhere}[data-gap-check]{margin-top:12px}[data-gap-check] p{color:var(--muted);margin-top:6px}.known-refs{margin-top:22px;font-size:var(--fs-small)}.known-refs>summary{padding:8px 0}.known-refs .sig-refs{margin:10px 0}.known-sources{display:flex;flex-direction:column;gap:6px;margin:10px 0}.known-sources a{color:var(--rust);overflow-wrap:anywhere}.source-date{color:var(--muted);font-size:var(--fs-caption)}.branches{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.branch{background:var(--card);border:1px solid var(--line);padding:18px 20px;display:flex;flex-direction:column;gap:8px;scroll-margin-top:calc(var(--masthead-height) + 16px)}.branch.is-target{border-color:var(--rust);box-shadow:0 0 0 2px var(--rust-tint)}.branch>small{font-size:var(--fs-caption);color:var(--green);letter-spacing:.04em}.branch h3{font-size:var(--fs-h3);line-height:1.5}.branch p{font-size:var(--fs-small);line-height:1.85}.branch p>span,.branch details p>span{display:block;font-size:var(--fs-caption);color:var(--muted)}.branch details p{margin-top:8px}.branch-sources{display:flex;flex-direction:column;gap:4px}.branch-sources a,.branch details>a{color:var(--rust);overflow-wrap:anywhere}.branch-go{align-self:flex-start;margin-top:auto}.research-notes{margin-top:30px}.research-notes h3{font-size:var(--fs-h3);margin:0 0 10px}.research-note{border-top:1px solid var(--line);padding:12px 0;scroll-margin-top:calc(var(--masthead-height) + 16px)}.research-note:last-child{border-bottom:1px solid var(--line)}.research-note.is-target{background:var(--tint)}.research-note>summary{cursor:pointer;font-size:var(--fs-body);line-height:1.7;list-style-position:outside}.research-note>summary small{display:inline-block;font-size:var(--fs-caption);color:var(--green);margin-right:10px}.research-note dl{display:grid;grid-template-columns:180px minmax(0,1fr);gap:8px 18px;margin:12px 0 4px;font-size:var(--fs-small);line-height:1.8}.research-note dt{color:var(--muted)}.research-note dd{margin:0}.research-note dd a{display:block;color:var(--rust);overflow-wrap:anywhere}.links-block{margin-bottom:30px}.links-block>h3{font-size:var(--fs-h3);margin:0 0 12px}.links-block>a{font-size:var(--fs-small);color:var(--rust)}.world-links,.world-bridges,.world-records,.world-series{list-style:none;margin:0 0 12px;padding:0}.world-links li,.world-bridges li,.world-records li,.world-series li{border-top:1px solid var(--line);padding:12px 0}.world-links a,.world-bridges a,.world-series a{color:inherit;text-decoration:none;display:block}.world-links a:hover strong,.world-bridges a:hover strong,.world-series a:hover strong{color:var(--rust)}.world-links strong,.world-bridges strong,.world-records strong,.world-series strong{display:block;font-family:var(--serif);font-weight:500;font-size:var(--fs-text);line-height:1.6}.world-links small,.world-bridges small,.world-records small,.world-series small{display:block;font-size:var(--fs-caption);color:var(--muted)}.world-links p,.world-series p{font-size:var(--fs-small);color:var(--muted);line-height:1.8;margin-top:4px}.world-links p span{color:var(--ink);margin-right:6px}@media(max-width:1000px){.world-page{display:block}.section-index{position:static;flex-direction:row;overflow-x:auto;gap:4px;margin:0 0 18px;padding-bottom:6px;white-space:nowrap;scrollbar-width:none}.section-index a{border-left:0;border-bottom:2px solid var(--line);padding:6px 10px;flex:0 0 auto}.section-index a[aria-current]{border-bottom-color:var(--rust);background:none}.section-index .section-index-world{padding:6px 10px 6px 0;border:0}}@media(max-width:700px){.world-page{padding-top:12px}.section-index{margin-bottom:10px;font-size:var(--fs-label)}.world-ask h1{font-size:var(--fs-h2);margin-bottom:6px}.world-formal{font-size:var(--fs-label);line-height:1.6;margin-bottom:4px}.world-formal .world-clay{margin-top:2px}.world-kicker .section-label{display:none}.world-section>h2{font-size:var(--fs-display)}.obstacles,.known-list,.branches,.known-pair{grid-template-columns:minmax(0,1fr)}.known-pair>div+div{border-left:0;border-top:1px solid var(--ink)}.research-note dl{grid-template-columns:minmax(0,1fr);gap:2px}.research-note dd{margin-bottom:8px}}.pc-sketch{margin:0;background:var(--card);border:1px solid var(--line);padding:16px 18px}.pc-panels{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}.pc-panels svg{width:100%;height:auto;display:block}.pc-panels .pc-label{font-size:var(--fs-label);color:var(--muted);text-align:center;margin-top:4px}.pc-panels .pc-text{font-size:var(--fs-small);line-height:1.8;color:var(--ink);margin-top:8px}.pc-panels .pc-text b{display:block;font-family:var(--serif);font-weight:500;font-size:var(--fs-text);margin-bottom:2px}.pc-cut{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin-top:14px;font-size:var(--fs-small)}.pc-cut button{border:1px solid var(--line-strong);background:var(--paper);padding:4px 12px;border-radius:2px}.pc-cut button[aria-pressed=true]{background:var(--ink);color:var(--card);border-color:var(--ink)}.pc-say{font-size:var(--fs-body);line-height:1.85;margin-top:10px}.pc-sketch figcaption{font-size:var(--fs-caption);color:var(--muted);margin-top:6px}.pc-steps{margin-top:20px;max-width:80ch}.pc-steps h2{font-size:var(--fs-h3);margin:0 0 8px}.pc-steps li{font-size:var(--fs-body);line-height:1.85;margin-bottom:6px}@media(max-width:700px){.pc-panels{grid-template-columns:minmax(0,1fr);gap:18px}.pc-panels svg{max-width:360px;margin:0 auto}}.sig-moved{font-size:var(--fs-small);color:var(--muted);border-top:1px solid var(--line);padding:12px 0;margin:18px 0 0}.sig-moved a{color:var(--rust)}.scene-location{position:sticky;top:var(--masthead-height);z-index:20;background:var(--paper);display:flex;flex-wrap:wrap;align-items:center;gap:6px 18px;padding:10px 0;margin:-20px 0 16px;border-bottom:1px solid var(--line);font-size:var(--fs-label)}.scene-back{color:var(--rust);text-decoration:none;font-weight:600;white-space:nowrap}.scene-crumbs{display:flex;flex-wrap:wrap;gap:4px 8px;align-items:center;color:var(--muted);min-width:0}.scene-crumbs a{color:var(--muted);text-decoration:none}.scene-crumbs a:hover{color:var(--rust)}.scene-crumbs [aria-current]{color:var(--ink)}.scene-location .object-tools{margin-left:auto;display:flex;gap:16px;align-items:center}.scene-location .object-tools .text-link{font-size:var(--fs-label);color:var(--ink)}.scene-location .object-tools .secondary{padding:5px 12px;font-size:var(--fs-label)}.scene-notes{margin-top:40px;border-top:1px solid var(--ink)}.scene-notes>summary{cursor:pointer;padding:14px 0;font-size:var(--fs-small)}.scene-notes-body{max-width:900px;padding-bottom:10px}.scene-notes-body .lens-section h3{font-size:var(--fs-h3)}.scene-notes-body .model-distance{display:grid;grid-template-columns:minmax(0,1fr) 50px minmax(0,1fr);align-items:center}.scene-notes-body .model-distance>svg{transform:none;margin:0 auto}.scene-terms{display:flex;flex-wrap:wrap;gap:8px 14px}.scene-research small{font-size:var(--fs-caption);color:var(--muted)}.scene-sources{margin-top:16px}.scene-return{display:flex;flex-wrap:wrap;align-items:center;gap:12px 22px;margin-top:26px;padding:18px 20px;background:var(--tint);font-size:var(--fs-small)}.scene-return p{flex:1 1 280px;margin:0}.scene-next,.entry-origin a{color:var(--rust)}@media(max-width:700px){.scene-location{margin-top:-12px;padding:8px 0;gap:4px 12px}.scene-crumbs{display:none}.scene-location .object-tools{gap:12px}.scene-location .object-tools .secondary{padding:3px 9px;font-size:var(--fs-caption)}.scene-location .object-tools .text-link{font-size:var(--fs-caption)}.scene-notes-body .model-distance{grid-template-columns:minmax(0,1fr)}.scene-notes-body .model-distance>svg{transform:rotate(90deg)}}.catalog-list{list-style:none;margin:0;padding:0}.catalog-list li{border-bottom:1px solid var(--line)}.catalog-list a{display:grid;grid-template-columns:minmax(0,1fr);gap:4px;padding:16px 0;color:inherit;text-decoration:none}.catalog-list strong{font-family:var(--serif);font-weight:500;font-size:var(--fs-lead);line-height:1.55}.catalog-list a:hover strong{color:var(--rust)}.catalog-list small{font-size:var(--fs-caption);color:var(--green)}.catalog-list span{font-size:var(--fs-small);color:var(--muted);line-height:1.75}@media(max-width:760px){.catalog-page .discovery-layout{grid-template-columns:minmax(0,1fr);gap:18px}.catalog-page .discovery-filters{position:static}.catalog-page .discovery-filters [role=group]{flex-direction:row;flex-wrap:wrap}}.connections-modes{display:flex;gap:22px;font-size:var(--fs-small);border-bottom:1px solid var(--line);margin-bottom:20px}.connections-modes a{color:var(--muted);text-decoration:none;padding:8px 0;border-bottom:2px solid transparent}.connections-modes a[aria-current]{color:var(--rust);border-bottom-color:currentColor}.search-types{display:flex;flex-wrap:wrap;gap:6px;margin:14px 0 6px}.search-types button{font-size:var(--fs-label);padding:3px 10px;border:1px solid var(--line);border-radius:999px;min-height:30px}.search-types button[aria-pressed=true]{background:var(--ink);color:var(--card);border-color:var(--ink)}.world-items{display:grid;gap:0;max-width:82ch;border-top:1px solid var(--line)}.world-item{padding:20px 0 22px;border-bottom:1px solid var(--line)}.world-item h3{font-size:var(--fs-h3);line-height:1.5;margin:0 0 8px}.world-item p{font-size:var(--fs-body);line-height:1.9;margin:0 0 8px}.world-item p:last-child{margin-bottom:0}.world-item .item-note{font-size:var(--fs-body);line-height:1.9;margin:0 0 8px}.world-item .item-note p{margin:0 0 8px}.world-item .item-kicker,.world-item .item-kind{display:block;font-size:var(--fs-caption);color:var(--muted);margin-bottom:4px}.world-item.is-frontier .item-kicker{color:var(--rust)}.world-item .item-q{font-family:var(--serif);color:var(--ink)}.world-item .item-label{display:block;font-size:var(--fs-label);color:var(--muted)}.world-item .item-paper{font-size:var(--fs-small);color:var(--rust);overflow-wrap:anywhere}.world-item .world-bound{border-left:3px solid var(--gold, var(--rust));padding:2px 0 2px 12px;margin:8px 0;color:var(--ink);font-size:var(--fs-body);line-height:1.9}.world-item .known-refs{margin:0}.world-item .known-refs>summary{list-style:none;padding:0}.world-item .known-refs>summary h3{display:inline}.world-item .known-refs>summary:after{content:" ＋";color:var(--green)}.world-item .known-refs[open]>summary:after{content:" －"}.world-item details[data-gap-check]{margin-top:8px}.workshop-situation-after{max-width:66em;font-size:var(--fs-body);line-height:1.9;color:var(--muted);margin:18px 0}.term-row{display:flex;flex-wrap:wrap;gap:4px 12px;margin:0}.term-row .term{font-size:var(--fs-caption);min-height:0;padding-top:2px;padding-bottom:2px}.workspace-page>.term-row{margin:0 0 4px}.shadows-question{font-size:var(--fs-small);color:var(--muted);margin-top:10px}.shadows-question span{color:var(--ink);margin-right:4px}.item-steps{margin:0;padding-left:1.4em;font-size:var(--fs-body);line-height:1.9}.pc-steps-link{font-size:var(--fs-small);color:var(--muted);margin-top:12px}.pc-steps-link a{color:var(--rust);text-decoration:underline;text-underline-offset:3px}.section-index .index-tiny{display:none}@media(max-width:700px){.section-index .index-long{display:none}.section-index .index-tiny{display:inline}}.world-links .world-links-back{display:block;font-size:var(--fs-caption);color:var(--rust);margin-top:2px}.en-pending{font-size:var(--fs-small);color:var(--muted);margin:-6px 0 14px;font-style:italic}.masthead .top-tools button[data-global=search]>i{font-style:normal}.lead-flow{margin:0}.lead-flow canvas{width:100%;aspect-ratio:1;height:auto;background:var(--night);cursor:crosshair}.home-head{grid-template-columns:minmax(0,1fr) 280px;column-gap:40px;align-items:end}.home-title{display:grid;gap:10px;align-self:center}.lead-flow-hero{display:grid;gap:8px}.lead-flow-hero figcaption{font-size:var(--fs-caption);color:var(--muted);line-height:1.7}.lead-flow-hero figcaption a,.world-lead-open{color:var(--rust)}.lead-flow-hero figcaption a{text-decoration:underline;text-underline-offset:3px}.doors-checked{display:none}.world-lead{margin:6px 0 0}.lead-flow-world{display:grid;grid-template-columns:minmax(0,470px) minmax(0,1fr);gap:16px 30px;align-items:start}.lead-flow-dim{margin:6px 0 0;font-size:var(--fs-caption);color:var(--muted);line-height:1.5}.lead-flow-tools{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:8px}.lead-flow-tools button,.lead-term{border:1px solid var(--line-strong);background:var(--card);color:var(--ink);border-radius:var(--control-radius);padding:4px 10px;font-size:var(--fs-small)}.lead-flow-tools button[aria-pressed=true]{background:var(--ink);border-color:var(--ink);color:var(--paper)}.lead-flow-notes{display:grid;gap:12px;align-content:start}.lead-flow-ask{font-size:var(--fs-label);color:var(--muted)}.lead-eq{display:flex;flex-wrap:wrap;align-items:center;gap:6px}.lead-eq>i{font-style:normal;font-family:var(--serif);font-size:var(--fs-h3);color:var(--muted)}.lead-term{display:grid;justify-items:center;gap:1px;min-width:76px;padding:6px 8px}.lead-term b{font-family:var(--serif);font-weight:400;font-size:var(--fs-body)}.lead-term small{font-size:var(--fs-caption);color:var(--muted)}.lead-term-do{font-size:var(--fs-micro);color:var(--rust)}.lead-term:not([aria-pressed]) .lead-term-do{color:var(--muted)}.lead-term.is-dropped{border-style:dashed;background:none}.lead-term.is-dropped b{text-decoration:line-through;color:var(--faint)}.lead-flow-say{font-size:var(--fs-small);line-height:1.8;color:var(--ink);border-left:3px solid var(--green);padding-left:12px;min-height:5.4em}.lead-probe svg{width:100%;max-width:360px;height:auto}.lead-energy{display:block;font-size:var(--fs-label);color:var(--muted);font-variant-numeric:tabular-nums}.world-lead-open{display:inline-block;margin-top:10px;font-size:var(--fs-small)}.world-bridge{margin:30px 0 14px;padding-top:18px;border-top:1px solid var(--line);max-width:72ch}.world-bridge h2{font-size:var(--fs-h3);line-height:1.45;margin-bottom:6px}.world-bridge p{font-size:var(--fs-small);line-height:1.85;color:var(--muted)}@media(max-width:1100px){.lead-flow-world{grid-template-columns:minmax(0,1fr)}.lead-flow-world .lead-flow-field{max-width:520px}}@media(max-width:900px){.home-head{grid-template-columns:minmax(0,1fr) 220px;column-gap:24px}}@media(max-width:700px){.home-head{display:block}.lead-flow-hero{grid-template-columns:132px minmax(0,1fr);align-items:center;gap:12px;margin-top:12px}.door-date{display:none}.doors-checked{display:block;margin-top:12px;font-size:var(--fs-caption);color:var(--muted)}.lead-term{min-width:0;flex:1 1 64px;padding:5px 4px}.lead-eq>i{font-size:var(--fs-body)}}.home-hero{display:grid;grid-template-columns:minmax(0,1fr);gap:6px;padding-bottom:8px}.home-hero-copy{display:grid;gap:14px;max-width:980px}.home-hero h1{font-size:clamp(34px,4.6vw,62px);line-height:1.14;letter-spacing:-.02em}.home-hero h1 em{display:block;color:var(--rust);font-style:normal}.home-hero-copy p{color:var(--ink);font-size:var(--fs-lead);line-height:1.8;max-width:40em}.hero-figs{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));margin-top:20px;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.hero-fig{padding:12px 18px 12px 0;display:grid;gap:2px;align-content:start;min-width:0}.hero-fig+.hero-fig{padding-left:18px;border-left:1px solid var(--line)}.hero-fig strong{font:500 clamp(30px,3.6vw,48px)/1.05 var(--serif);font-variant-numeric:tabular-nums;letter-spacing:-.02em}.hero-fig strong small{font-size:.5em;color:var(--muted)}.hero-fig.is-open strong{color:var(--rust)}.hero-fig.is-solved strong{color:var(--green)}.hero-fig span{font-size:var(--fs-small);color:var(--muted);line-height:1.5}.home-hero-copy p b{color:var(--ink);font-weight:600;font-variant-numeric:tabular-nums}.home-river{margin:10px 0 0;min-height:200px}.home-river-note,.forecast-mine{display:flex;flex-wrap:wrap;gap:6px 16px;align-items:baseline;font-size:var(--fs-body);color:var(--muted)}.home-river-note a{color:var(--rust)}.river{display:block;width:100%;height:auto;touch-action:pan-y;user-select:none;overflow:visible}.river text{font-family:var(--sans);font-size:var(--fs-label);fill:var(--muted)}.river .river-name text{font-family:var(--serif);font-size:var(--fs-body);fill:var(--ink)}.river .river-name:hover text,.river .river-name:focus-visible text{fill:var(--rust)}.river-hatch{stroke:var(--line);stroke-width:2}.river-future{opacity:.75}.river-grid{stroke:var(--line);stroke-width:1}.river-now{stroke:var(--ink);stroke-width:1.5}.river-clay{stroke:var(--gold);stroke-width:1.5;stroke-dasharray:3 3}.river text.river-clay-label{fill:var(--umber, var(--muted))}.river-line{stroke-width:8;stroke-linecap:round;stroke:var(--rust)}.river-line.is-solved,.river-end.is-solved{stroke:var(--green);fill:var(--green)}.river-line.is-eval{stroke:var(--gold)}.river-line.is-disputed{stroke:var(--blue);stroke-dasharray:10 5;stroke-linecap:butt}.river-born{fill:var(--paper);stroke:var(--rust);stroke-width:2}.river-born.is-solved{stroke:var(--green)}.river-born.is-eval{stroke:var(--gold)}.river-born.is-disputed{stroke:var(--blue)}.river text.river-age.is-solved{fill:var(--green);font-weight:600}.river-pulse{fill:var(--rust);opacity:.35}.river-pulse.is-eval{fill:var(--gold)}.river-pulse.is-disputed{fill:var(--blue)}.river-gott{fill:var(--rust);opacity:.2}.river-handle{cursor:ew-resize;outline:none}.river-hit{fill:transparent}.river-handle path{fill:var(--card);stroke:var(--ink);stroke-width:1.5}.river-handle.is-set path{fill:var(--ink)}.river-handle:hover path,.river-handle:focus-visible path{stroke:var(--rust);stroke-width:2.5}.river-handle:not(.is-set) path{transform-box:fill-box;transform-origin:center;animation:river-invite 2.4s ease-in-out infinite}@keyframes river-invite{0%,to{transform:scale(1)}50%{transform:scale(1.3)}}.river text.river-hint{fill:var(--rust);font-weight:600;font-size:var(--fs-small)}@media(prefers-reduced-motion:reduce){.river-handle:not(.is-set) path{animation:none}}.river-handle:focus-visible .river-hit{stroke:var(--rust);stroke-width:2}.river text.river-pick{fill:var(--ink);font-weight:600}.progress-strip{margin-top:22px;padding:18px 0 4px;border-top:1px solid var(--ink)}.progress-strip-head{display:grid;grid-template-columns:auto minmax(0,1fr) auto;gap:6px 24px;align-items:baseline;margin-bottom:14px}.progress-strip-head h2{font-size:var(--fs-h3)}.progress-strip-head p{font-size:var(--fs-small);color:var(--muted);line-height:1.7}.progress-strip-head a{font-size:var(--fs-small);color:var(--rust);white-space:nowrap}.pstrip{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(7,minmax(0,1fr));gap:10px}.pseg a{display:flex;flex-direction:column;gap:8px;color:inherit;text-decoration:none;min-width:0;padding:10px 10px 12px;border:1px solid var(--line);background:var(--card);height:100%;transition:border-color .15s}.pseg a:hover{border-color:var(--ink)}.pseg-name{display:flex;flex-direction:column;gap:2px;min-width:0}.pseg-name b{font-family:var(--serif);font-weight:500;font-size:var(--fs-lead);color:var(--ink);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.pseg-name small{font-size:var(--fs-label);color:var(--rust)}.pseg.is-solved .pseg-name small{color:var(--green)}.pseg.is-eval .pseg-name small{color:var(--umber, var(--muted))}.status-dot{display:inline-block;width:7px;height:7px;border-radius:50%;background:currentColor;margin-right:6px;vertical-align:1px}.pseg.is-solved a{border-color:var(--green);box-shadow:inset 0 3px 0 var(--green)}.pdots{display:flex;flex-wrap:wrap;gap:4px}.pdots i{width:10px;height:10px;border-radius:50%;border:1.5px solid var(--rust);box-sizing:border-box}.pdots i.is-settled{background:var(--green);border-color:var(--green)}.pdots i.is-partial{background:var(--gold);border-color:var(--gold)}.pdots i.is-clay{outline:1.5px solid var(--ink);outline-offset:2px}.pdots.is-big{gap:6px;margin:4px 0 2px}.pdots.is-big i{width:16px;height:16px;border-width:2px}.pdots.is-big i.is-clay{outline-offset:3px}.doors-head{margin-top:30px;padding-top:18px;border-top:1px solid var(--ink);font-size:var(--fs-h3);display:flex;flex-wrap:wrap;gap:4px 16px;align-items:baseline}.doors-head small{font-family:var(--sans);font-size:var(--fs-small);color:var(--muted)}.home-page .doors{margin-top:16px}.door{transition:border-color .15s,transform .2s,box-shadow .2s}.door:hover{transform:translateY(-3px);box-shadow:0 10px 24px -18px var(--ink)}@media(prefers-reduced-motion:reduce){.door,.door:hover{transition:none;transform:none}}@media(max-width:1100px){.pstrip{grid-template-columns:repeat(4,minmax(0,1fr))}.progress-strip-head{grid-template-columns:minmax(0,1fr) auto}.progress-strip-head p{grid-column:1 / -1;grid-row:2}}@media(max-width:700px){.pstrip{grid-template-columns:minmax(0,1fr);gap:6px}.pseg a{flex-direction:row;align-items:center;justify-content:space-between;padding:8px 10px}.pseg-name{flex:0 0 42%}.pdots{justify-content:flex-end}.hero-figs{grid-template-columns:repeat(2,minmax(0,1fr))}.hero-fig:nth-child(3){padding-left:0;border-left:0}.hero-fig:nth-child(n+3){border-top:1px solid var(--line)}.hero-fig strong{font-size:30px}}@media(max-width:700px){.home-hero h1{font-size:clamp(28px,8.4vw,36px)}.home-hero-copy p{font-size:var(--fs-small);line-height:1.75}.river .river-name text{font-size:var(--fs-label)}.river text{font-size:var(--fs-caption)}.doors-head{margin-top:20px}}.progress-page{padding-top:34px}.progress-head{max-width:900px;display:grid;gap:10px;padding-bottom:20px}.progress-head h1{font-size:clamp(28px,3.6vw,46px);line-height:1.25;letter-spacing:-.01em}.progress-head>p:last-child{color:var(--muted);font-size:var(--fs-text);line-height:1.9;max-width:44em}.progress-section{padding:26px 0 30px;border-top:1px solid var(--ink)}.progress-section>h2{font-size:var(--fs-h2)}.progress-lede{color:var(--muted);font-size:var(--fs-body);line-height:1.85;max-width:60em;margin:8px 0 18px}.prog-rows{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(100%,380px),1fr));gap:14px 28px}.prog-row{padding:14px 0;border-top:1px solid var(--line);min-width:0}.prog-row header{display:flex;justify-content:space-between;gap:12px;align-items:baseline;margin-bottom:8px}.prog-row h3{font-size:var(--fs-lead)}.prog-row h3 a{color:inherit}.prog-row h3 a:hover{color:var(--rust)}.prog-status{font-size:var(--fs-caption);padding:1px 8px;border:1px solid currentColor;white-space:nowrap;color:var(--rust)}.prog-status.is-solved{color:var(--green)}.prog-status.is-eval{color:var(--umber, var(--muted))}.prog-bar{display:flex;height:14px;gap:2px}.prog-bar i.is-open{outline:1px solid var(--line-strong);outline-offset:-1px}.prog-count{font-size:var(--fs-label);color:var(--muted);margin-top:6px}.prog-cells>summary{font-size:var(--fs-small);color:var(--rust);padding:6px 0}.prog-cells ul{list-style:none;margin:4px 0 8px;padding:0;display:grid;gap:4px}.prog-cells li{display:flex;justify-content:space-between;gap:12px;font-size:var(--fs-small);padding:4px 8px;border-left:4px solid var(--line-strong);background:var(--card)}.prog-cells li.is-settled{border-left-color:var(--green)}.prog-cells li.is-partial{border-left-color:var(--gold)}.prog-cells li.is-open{border-left-color:var(--rust)}.prog-cells li.is-clay{outline:1px dashed var(--ink);outline-offset:-1px}.prog-cells li b{font-weight:500}.prog-cells li span{color:var(--muted);font-size:var(--fs-caption);white-space:nowrap}.prog-cells a{font-size:var(--fs-small);color:var(--rust)}.forecast-layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:28px;align-items:start}.forecast-extra-h{font-size:var(--fs-text);margin:18px 0 0;color:var(--muted);font-family:var(--sans);font-weight:600}.forecast-ref{position:sticky;top:calc(var(--masthead-height) + 16px);background:var(--card);border:1px solid var(--line);padding:16px 18px;font-size:var(--fs-small);line-height:1.8}.forecast-ref h3{font-size:var(--fs-h3);margin-bottom:6px}.ref-list{margin:0;display:grid;gap:2px}.ref-list dt{font-size:var(--fs-caption);color:var(--muted);margin-top:8px;letter-spacing:.04em}.ref-list dd{margin:0}.ref-list a,.famous-list a{color:var(--rust);text-decoration:underline;text-underline-offset:3px}.forecast-mine{margin-top:16px;padding-top:12px;border-top:1px solid var(--line)}.forecast-mine p{color:var(--ink)}.famous-scroll{overflow-x:auto}.famous-chart{display:block;width:100%;max-width:860px;min-width:560px;height:auto}.famous-chart text{font-family:var(--sans);font-size:var(--fs-label);fill:var(--muted)}.famous-chart .famous-name{fill:var(--ink)}.famous-chart .famous-name.is-open{fill:var(--rust)}.famous-bar{stroke-width:10}.famous-bar.is-solved{stroke:var(--green)}.famous-bar.is-open{stroke:var(--rust);stroke-dasharray:6 3}.famous-list>summary{font-size:var(--fs-small);color:var(--rust);padding:10px 0}.famous-list ul{margin:0;padding-left:18px;font-size:var(--fs-small);line-height:1.9}.famous-list a{color:var(--rust)}@media(max-width:900px){.forecast-layout{grid-template-columns:minmax(0,1fr)}.forecast-ref{position:static}}@media(max-width:700px){.masthead .primary-nav{gap:0}.masthead .primary-nav a{padding:0 6px}html[data-lang=en] .masthead .primary-nav a[data-section]{padding-left:3px;padding-right:3px;font-size:var(--fs-label);letter-spacing:0}html[data-lang=en] body .masthead{padding:0 10px;gap:0 6px}}@media(max-width:380px){.masthead .primary-nav a{padding:0 4px;letter-spacing:0}}@media(max-width:380px){html[data-lang=en] .masthead .primary-nav a[data-section]{padding-left:2px;padding-right:2px;font-size:var(--fs-caption)}html[data-lang=en] body .masthead .top-tools{gap:2px}html[data-lang=en] body .masthead .top-tools .tool-toggle{padding:2px 4px}}.river text.river-age,.river text.river-pick,.river text.river-note{paint-order:stroke;stroke:var(--paper);stroke-width:4px;stroke-linejoin:round}@media(max-width:700px){.river-line{stroke-width:5}}@media(max-width:700px){.pseg-name{flex-direction:row;align-items:baseline;gap:8px}.pseg-name b{font-size:var(--fs-text)}}.home-page .mosaic{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));grid-auto-rows:clamp(190px,17vw,250px);gap:1px;background:var(--line);border:1px solid var(--line);margin-top:0}.tile-title{grid-column:span 2;grid-row:span 2;background:var(--card);padding:clamp(20px,2.6vw,40px);display:flex;flex-direction:column;justify-content:flex-end;gap:14px;min-width:0}.tile-title h1{font-size:clamp(30px,3.6vw,54px);line-height:1.14;letter-spacing:-.02em}.tile-title h1 em{display:block;font-style:normal;color:var(--rust)}.tile-title h1 .nw{white-space:nowrap}.tile-title>p{color:var(--ink);font-size:var(--fs-lead);line-height:1.75;max-width:30em}.tile-title .hero-figs{grid-template-columns:repeat(3,minmax(0,1fr));margin-top:4px}.tile-forecast{align-self:flex-start;font-size:var(--fs-body);color:var(--rust);border-bottom:1px solid currentColor;padding-bottom:2px}.tile-forecast:hover{color:var(--ink)}.mosaic .tile{position:relative;display:block;background:var(--paper);color:inherit;text-decoration:none;overflow:hidden;min-height:0;border:0;transform:none;box-shadow:none}.mosaic .tile:hover{transform:none;box-shadow:inset 0 0 0 2px var(--ink)}.mosaic .tile:focus-visible{outline:3px solid var(--rust);outline-offset:-3px}.tile-navier{grid-column:span 2}.tile-canvas{position:absolute;inset:0;width:100%;height:100%}.tile-status{font-size:var(--fs-caption);color:var(--muted)}.tile-status i{display:inline-block;width:7px;height:7px;border-radius:50%;background:var(--rust);margin-right:6px;vertical-align:1px}.tile-status.is-solved i{background:var(--green)}.tile-status.is-eval i{background:var(--gold)}.tile-cap{position:absolute;left:0;right:0;bottom:0;padding:26px 14px 12px;display:grid;gap:3px;background:linear-gradient(to top,var(--paper) 62%,color-mix(in srgb,var(--paper) 0%,transparent))}.tile-name{font:500 var(--fs-lead)/1.3 var(--serif)}.tile-lead{font-size:var(--fs-label);color:var(--muted);line-height:1.5}.tile-lead b{color:var(--ink);font-weight:600}.tile-lead.is-proof,.tile-lead.is-proof b{color:var(--green)}.tile-more{display:grid;gap:6px;max-height:0;overflow:hidden;transition:max-height .3s ease}.mosaic .tile:hover .tile-more,.mosaic .tile:focus-visible .tile-more{max-height:16em}.tile-q{font-size:var(--fs-small);line-height:1.6;color:var(--ink);margin-top:4px}.tile-people{list-style:none;margin:0;padding:0;display:grid;gap:2px;font-size:var(--fs-caption);line-height:1.5}.tile-people li{display:grid;grid-template-columns:auto auto minmax(0,1fr);gap:0 6px;align-items:baseline}.tile-people b{font-weight:600;color:var(--ink);white-space:nowrap}.tile-people li.is-proof b{color:var(--green)}.tile-people span{color:var(--muted);white-space:nowrap}.tile-people small{color:var(--muted);font-size:inherit;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.tile-go{font-size:var(--fs-small);color:var(--green);font-weight:600}.home-page .progress-strip{margin-top:26px}@media(prefers-reduced-motion:reduce){.tile-more{transition:none}}@media(max-width:1100px){.home-page .mosaic{grid-template-columns:repeat(2,minmax(0,1fr));grid-auto-rows:230px}.tile-title{grid-row:span 1;min-height:0}}@media(max-width:700px){.home-page .mosaic{grid-auto-rows:172px;margin-left:-4px;margin-right:-4px}.tile-title{grid-column:span 2;padding:18px 16px;gap:10px}.tile-title h1{font-size:clamp(26px,7.6vw,34px)}.tile-title>p{font-size:var(--fs-small)}.tile-title .hero-figs{grid-template-columns:repeat(3,minmax(0,1fr))}.tile-title .hero-fig{padding:8px 8px 8px 0}.tile-title .hero-fig+.hero-fig{padding-left:8px;border-left:1px solid var(--line);border-top:0}.tile-title .hero-fig strong{font-size:24px}.tile-title .hero-fig span{font-size:var(--fs-caption)}.tile-cap{padding:18px 10px 8px}.tile-name{font-size:var(--fs-small)}.tile-lead{font-size:var(--fs-caption)}}.home-page .mosaic .tile{grid-column:auto;grid-row:auto;min-height:0}.home-page .mosaic .tile.tile-navier{grid-column:span 2}@media(max-width:1100px){.home-page .mosaic .tile,.home-page .mosaic .tile:last-child{grid-column:auto}.home-page .mosaic .tile.tile-navier{grid-column:span 2}}@media(max-width:1100px){.home-page .mosaic{grid-auto-rows:auto}.home-page .mosaic .tile{height:230px}}@media(max-width:700px){.home-page .mosaic .tile{height:184px}.pseg-name{flex:1 1 auto;min-width:0}.pdots{flex:0 0 auto;max-width:58%}}.prog-people{margin:10px 0 2px;font-size:var(--fs-label)}@media(min-width:701px)and (max-width:1100px){.masthead .brand .project-subtitle{display:none}.masthead .primary-nav{gap:16px}.masthead .top-tools button{white-space:nowrap}html[data-lang=en] .masthead .primary-nav a[data-section]{font-size:var(--fs-label);letter-spacing:.02em}}.pseg{position:relative}.pseg-info{position:absolute;top:8px;right:8px;width:22px;height:22px;min-height:0;padding:0;border:1px solid var(--line-strong);border-radius:50%;font:italic 600 var(--fs-caption)/1 var(--serif);color:var(--muted);background:var(--card)}.pseg-info:hover,.pseg-info[aria-expanded=true]{color:var(--paper);background:var(--ink);border-color:var(--ink)}.pseg-card,.pop-card{visibility:hidden;opacity:0;pointer-events:none;transition:opacity .14s ease,visibility 0s linear .14s;position:absolute;z-index:30;top:100%;margin-top:6px;left:0;width:min(380px,86vw);padding:14px 16px;background:var(--card);border:1px solid var(--ink);box-shadow:0 14px 30px -18px var(--ink);font-size:var(--fs-small);line-height:1.7;color:var(--ink)}.pstrip>.pseg:nth-child(n+5) .pseg-card{left:auto;right:0}.card-on>.pseg-card,.card-on>.pop-card{visibility:visible;opacity:1;pointer-events:auto;transition-delay:0s}@media(prefers-reduced-motion:reduce){.pseg-card,.pop-card{transition:none}}.pseg-card-head{font-size:var(--fs-text);margin-bottom:6px}.pseg-card-head b{font-family:var(--serif);font-weight:500}.pseg-card-count{color:var(--muted);margin:6px 0}.pseg-card-groups{margin:0;display:grid;gap:2px 0}.pseg-card-groups dt{font-size:var(--fs-caption);color:var(--muted);margin-top:6px}.pseg-card-groups dt .dot{display:inline-block;width:8px;height:8px;border-radius:50%;margin-right:6px;border:1.5px solid var(--rust);vertical-align:0}.pseg-card-groups dt .dot.is-settled{background:var(--green);border-color:var(--green)}.pseg-card-groups dt .dot.is-partial{background:var(--gold);border-color:var(--gold)}.pseg-card-groups dd{margin:0;display:flex;flex-wrap:wrap;gap:3px 6px;font-size:var(--fs-label)}.pseg-card-groups dd span{padding:0 6px;background:var(--tint)}.pseg-card-groups dd span.is-clay{outline:1.5px solid var(--ink);background:var(--card);font-weight:600}.pseg-card-note{margin-top:8px;font-size:var(--fs-caption);color:var(--muted)}.solution{display:grid;gap:6px;padding:8px 0 8px 10px;border-left:3px solid var(--green);margin:4px 0 8px}.solution-lines{list-style:none;margin:0;padding:0;display:grid;gap:4px;font-size:var(--fs-small)}.solution a{color:var(--rust);font-size:var(--fs-label);text-decoration:underline;text-underline-offset:3px}.pstrip-how{position:relative;width:fit-content;margin:-4px 0 12px;font-size:var(--fs-small)}.pop-btn{min-height:0;padding:0;border:0;background:none;font:inherit;color:var(--rust);text-decoration:underline dotted;text-underline-offset:3px;cursor:help}.pop-btn:hover,.pop-btn[aria-expanded=true]{text-decoration-style:solid}.pop-card{width:min(620px,calc(100vw - 32px));line-height:1.8}.pop-card:before{content:"";position:absolute;left:0;right:0;top:-8px;height:8px}@media(max-width:700px){.pseg-info{top:10px;right:6px}.pseg-name b{flex:none;overflow:visible}.pseg-name small{min-width:0}.pseg a{padding-right:34px}.pseg-card,.pstrip>.pseg:nth-child(n+5) .pseg-card{display:none;visibility:visible;opacity:1;position:static;width:auto;margin-top:6px;box-shadow:none}.pseg.card-on>.pseg-card{display:block}.pseg-card:before{display:none}.pseg a{height:auto}}@media(max-width:1100px)and (min-width:701px){.pstrip>.pseg:nth-child(4n+3) .pseg-card,.pstrip>.pseg:nth-child(4n) .pseg-card{left:auto;right:0}.pstrip>.pseg:nth-child(4n+1) .pseg-card,.pstrip>.pseg:nth-child(4n+2) .pseg-card{left:0;right:auto}}.pseg-card:before{content:"";position:absolute;left:0;right:0;top:-8px;height:8px}.river text.river-who-cap,.river text.river-who-fact{fill:var(--muted);font-size:var(--fs-caption)}.river-chip{cursor:pointer;outline:none}.river-chip rect:not(.river-hit){fill:var(--card);stroke:var(--line-strong)}.river .river-chip text{fill:var(--ink);font-size:var(--fs-caption);pointer-events:none}.river-chip:hover rect:not(.river-hit){stroke:var(--ink)}.river-chip.is-on rect:not(.river-hit){fill:var(--ink);stroke:var(--ink)}.river .river-chip.is-on text{fill:var(--paper)}.river-chip:focus-visible rect:not(.river-hit){stroke:var(--rust);stroke-width:2.5}.who-slot{margin:8px 0 12px;padding:8px 0 10px;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.who-slot p{margin:0}.who-q{font-weight:600}.who-hint,.who-note{color:var(--muted);font-size:var(--fs-label);margin-top:4px!important}.who-mine{margin-top:4px!important}.who-mine b{font-weight:600}.who-bar{display:flex;height:12px;gap:2px;margin:8px 0 6px}.who-bar i{min-width:3px;background:var(--rust)}.who-bar i.is-human,.who-legend .is-human i{background:var(--green)}.who-bar i.is-mine{outline:2px solid var(--ink);outline-offset:1px}.who-legend{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:2px 16px;font-size:var(--fs-label)}.who-legend li{display:inline-flex;align-items:center;gap:6px}.who-legend li i{width:10px;height:10px;background:var(--rust)}.who-legend li.is-mine{font-weight:600}.who-legend li span{color:var(--muted)}.who-ref-line{margin-top:8px!important;font-size:var(--fs-label);line-height:1.7}.who-ref-line a{color:var(--rust)}.who-more{margin-top:4px;font-size:var(--fs-label)}.who-more>summary{color:var(--rust);cursor:pointer}.who-more p,.who-more ul{margin:6px 0 0}.who-more ul{padding-left:1.1em}.who-more li{margin-top:4px}.who-more q{font-style:italic}

:root{--ui-radius: 2px;--ui-h: 34px;--ui-h-sm: 28px;--ui-focus: var(--rust)}.ui-primary,.ui-secondary,.ui-text{display:inline-flex;align-items:center;gap:6px;font:inherit;font-size:var(--fs-small);line-height:1.3;cursor:pointer;text-decoration:none}.ui-primary{min-height:var(--ui-h);padding:6px 14px;border:1px solid var(--ink);background:var(--ink);color:var(--paper);border-radius:var(--ui-radius)}.ui-primary:hover{background:color-mix(in srgb,var(--ink) 86%,var(--paper))}.ui-secondary{min-height:var(--ui-h);padding:6px 12px;border:1px solid var(--line-strong);background:var(--card);color:var(--ink);border-radius:var(--ui-radius)}.ui-secondary:hover{border-color:var(--ink)}.ui-text{padding:3px 0;border:0;border-bottom:1px solid var(--line-strong);background:transparent;color:var(--green);border-radius:0}.ui-text:hover{border-bottom-color:var(--green)}:is(.ui-primary,.ui-secondary,.ui-text,.ui-seg button,.ui-chip):focus-visible{outline:2px solid var(--ui-focus);outline-offset:2px}:is(.ui-primary,.ui-secondary,.ui-seg button):disabled{opacity:.45;cursor:default}.ui-seg{display:inline-flex;flex-wrap:wrap;gap:0;align-items:stretch}.ui-seg>.ui-seg-label{font-size:var(--fs-small);color:var(--muted);margin-right:8px;align-self:center}.ui-seg button{min-height:var(--ui-h-sm);padding:3px 11px;border:1px solid var(--line-strong);background:var(--card);color:var(--ink);font-size:var(--fs-small);cursor:pointer;border-radius:0;margin-left:-1px}.ui-seg button:first-of-type{border-radius:var(--ui-radius) 0 0 var(--ui-radius);margin-left:0}.ui-seg button:last-of-type{border-radius:0 var(--ui-radius) var(--ui-radius) 0}.ui-seg button[aria-pressed=true]{background:var(--ink);color:var(--paper);border-color:var(--ink);position:relative}.ui-chip{display:inline-flex;align-items:center;gap:6px;min-height:var(--ui-h-sm);padding:3px 12px;border:1px solid var(--line-strong);border-radius:999px;background:var(--card);color:var(--ink);font-size:var(--fs-small);text-decoration:none}.ui-chip:hover{border-color:var(--ink)}.ui-chip .ui-glyph{color:var(--muted)}.ui-range{display:grid;grid-template-columns:auto minmax(0,1fr) auto;gap:6px 10px;align-items:center;font-size:var(--fs-small)}.ui-range output{font-variant-numeric:tabular-nums;min-width:5ch;text-align:right;color:var(--rust)}.ui-readout{display:grid;grid-template-columns:repeat(auto-fit,minmax(130px,1fr));gap:6px}.ui-readout>div{background:var(--tint);padding:6px 10px;font-size:var(--fs-caption);color:var(--muted);line-height:1.45}.ui-readout b{display:block;font-weight:500;font-size:var(--fs-body);color:var(--ink);font-variant-numeric:tabular-nums}.ui-verdict{margin:0;background:var(--card);border:1px solid var(--line);border-left:3px solid var(--ink);padding:9px 12px;line-height:1.6}.ui-verdict.is-good{border-left-color:var(--green)}.ui-verdict.is-bad{border-left-color:var(--rust)}.ui-bound{margin:0;font-size:var(--fs-small);color:var(--muted);border-top:1px dotted var(--line-strong);padding-top:8px;line-height:1.7}.ui-stage{background:var(--card);border:1px solid var(--line);position:relative}.ui-caption{font-size:var(--fs-caption);color:var(--muted);line-height:1.55;margin:4px 0 0}.ui-legend{display:flex;flex-wrap:wrap;gap:4px 14px;font-size:var(--fs-caption);color:var(--muted)}.ui-legend i{display:inline-block;width:14px;height:3px;vertical-align:middle;margin-right:6px;background:currentColor}.ui-fold{border-top:1px solid var(--line)}.ui-fold>summary{display:flex;gap:10px;align-items:baseline;padding:9px 2px;cursor:pointer;list-style:none}.ui-fold>summary::-webkit-details-marker{display:none}.ui-fold>summary:before{content:"▸";color:var(--muted)}.ui-fold[open]>summary:before{content:"▾"}:is(input[type=range],input[type=checkbox],input[type=radio]){min-height:0!important}input[type=range]{accent-color:var(--control-accent, var(--green))!important;height:20px;cursor:pointer}input[type=checkbox],input[type=radio]{accent-color:var(--control-accent, var(--green))!important;width:16px;height:16px}#main :is(.action,.sig-primary,.world-primary,.dispatch-check .action,.field-controls .action,.ax-btn.is-primary){background:var(--ink)!important;color:var(--paper)!important;border:1px solid var(--ink)!important;border-radius:var(--ui-radius)!important;font-size:var(--fs-small)!important;min-height:var(--ui-h);padding:6px 14px!important;line-height:1.3}#main :is(.action,.sig-primary,.world-primary):hover{background:color-mix(in srgb,var(--ink) 86%,var(--paper))!important}#main :is(.secondary,.field-controls>button:not(.action),.work-history button,.brain-presets button,.bsd-try button,.work-baseline-tools button,.engine-controls>button,.dispatch-actions button,.dispatch-question button,.dispatch-check-actions button,.dispatch-map-tools button,.cooling-presets button,.cooling-compare-tools button,.world-controls button[data-world-action],.ax-btn,.gauge-tools>button,.rh-tools>button,.interval-controls>button,.quantum-controls>button,.world-tools>button,.world-actions>button,.fold-sequence>button,.field-actions>button,.field-transport>button,.control-row>button,.formula-editor>button,.study-actions>button,[class^=sig-]>button:not(.sig-primary):not(.sig-chip),.sig-actions button,.sig-row button:not(.sig-primary):not(.sig-chip)):not(.action):not(.sig-primary):not(.world-primary){background:var(--card)!important;color:var(--ink)!important;border:1px solid var(--line-strong)!important;border-radius:var(--ui-radius)!important;font-size:var(--fs-small)!important;min-height:var(--ui-h-sm);padding:4px 12px!important;line-height:1.35;font-family:var(--sans)}#main :is(.secondary,.work-history button,.engine-controls>button,.ax-btn):hover{border-color:var(--ink)!important}#main :is(.secondary,.field-controls>button:not(.action),.work-history button,.brain-presets button,.bsd-try button,.work-baseline-tools button,.engine-controls>button,.dispatch-actions button,.dispatch-question button,.dispatch-check-actions button,.dispatch-map-tools button,.cooling-presets button,.cooling-compare-tools button,.world-controls button[data-world-action],.ax-btn,.gauge-tools>button,.rh-tools>button,.interval-controls>button,.quantum-controls>button,.world-tools>button,.world-actions>button,.fold-sequence>button,.field-actions>button,.field-transport>button,.control-row>button,.formula-editor>button,.study-actions>button,[class^=sig-]>button:not(.sig-primary):not(.sig-chip),.sig-actions button,.sig-row button:not(.sig-primary):not(.sig-chip)):not(.action):not(.sig-primary):not(.world-primary):is([aria-pressed=true],[aria-checked=true],[aria-selected=true],.active,.is-active,.is-on){background:var(--ink)!important;color:var(--paper)!important;border-color:var(--ink)!important;font-weight:500}#main :is(.seg,.ax-seg,.sig-seg,.study-select,.study-presets,.flow-views .seg,.flow-instruments .seg,.flow-compare,.lead-flow-tools,.pc-cut,.bsd-switch,.studio-actions,.roster-brush,.search-types)>button,#main .ax-seg button{background:var(--card)!important;color:var(--ink)!important;border:1px solid var(--line-strong)!important;border-radius:var(--ui-radius)!important;font-size:var(--fs-small)!important;min-height:var(--ui-h-sm);padding:3px 11px!important;line-height:1.35;box-shadow:none!important;font-family:var(--sans)}#main :is(.seg,.ax-seg,.sig-seg,.study-select,.study-presets,.flow-views .seg,.flow-instruments .seg,.flow-compare,.lead-flow-tools,.pc-cut,.bsd-switch,.studio-actions,.roster-brush,.search-types)>button:is([aria-pressed=true],.active,.is-active),#main .ax-seg button[aria-pressed=true]{background:var(--ink)!important;color:var(--paper)!important;border-color:var(--ink)!important;font-weight:500}#main :is(.seg,.ax-seg,.sig-seg,.study-select,.study-presets,.lead-flow-tools,.bsd-switch,.search-types)>button:not([aria-pressed=true]):not(.active):hover{border-color:var(--ink)!important}#main :is(.control,.field-range,.study-range,.world-range,.work-range,.ax-ctl,.sig-sliders label,.ui-range) :is(output,.value){color:var(--control-value, var(--rust))!important;font-variant-numeric:tabular-nums;font-family:var(--sans)!important;font-size:var(--fs-small)!important}#main :is(.ax-ctl,.ui-range){font-size:var(--fs-small)}#main select,#main input[type=number]{background:var(--card)!important;color:var(--ink)!important;border:1px solid var(--line-strong)!important;border-radius:var(--ui-radius)!important;font:var(--fs-small)/1.3 var(--sans)!important;min-height:var(--ui-h-sm);padding:3px 8px!important}#main :is(.ax-read,.sig-readout,.numbers,.pipe-readout,.world-stats,.probe-measures,.engine-readout,.diffusion-measures,.interval-counts) :is(b,strong){font:400 var(--fs-h3)/1.25 var(--serif)!important;color:var(--ink)!important;font-variant-numeric:tabular-nums;letter-spacing:0!important}#main :is(.ax-read,.sig-readout,.numbers,.pipe-readout,.world-stats,.probe-measures,.engine-readout,.interval-counts) :is(small,span:not(.katex *)){font-size:var(--fs-caption)!important;color:var(--muted)}#main :is(.pipe-readout,.world-stats,.numbers){background:var(--tint)}#main :is(.sig-verdict,.ax-verdict,.roster-verdict,.robot-verdict,.lead-flow-say,.sig-task,.sig-cascade-model,.sig-yang-model,.sig-cascade-status,.analytic-verdict,.field-verdict,.case-result){background:var(--tint)!important;border:0!important;border-left:3px solid var(--ink)!important;border-radius:0!important;padding:9px 12px!important;color:var(--ink)}#main :is(.ax-verdict.is-good,.sig-verdict-yes,.sig-verdict-verified,.roster-verdict:not([data-status=Infeasible]),.robot-verdict){border-left-color:var(--green)!important}#main :is(.ax-verdict.is-bad,.sig-verdict-open,.sig-verdict-bsd,.roster-verdict[data-status=Infeasible]){border-left-color:var(--rust)!important}#main :is(.sig-verdict-gzk,.sig-verdict-zero-free,.sig-cascade-status){border-left-color:var(--gold)!important}#main .sig-task{border-left-color:var(--ink)!important}#main :is(.boundary,.app-boundary,.sig-bound,.study-boundary,.workshop-boundary,.world-scope){font-size:var(--fs-small)!important;color:var(--muted)!important;line-height:1.7!important}#main :is(.hint,.field-caption,.work-caption,.ax-fig figcaption,.pc-sketch figcaption,.study-caption,.study-note,.object-caption,.ax-note){font-size:var(--fs-caption)!important;color:var(--muted)!important;line-height:1.6!important}#main .world-device :is(h3){font-size:var(--fs-h3)!important}#main :is(button,a,input,select,summary,textarea,[tabindex]):focus-visible{outline:2px solid var(--rust)!important;outline-offset:2px}.stage-palette,#main :is(.stage.night,.wave-lab canvas,.zeta-pair canvas,.finite-field canvas,.flow-fields,.flow-fields figure,.trace-event,.quantum-stage,.quantum-prob>div,.compare-figure){--night: var(--card);--night-2: var(--tint);--night-line: var(--line);--night-ink: var(--ink);--night-muted: var(--muted);--lime: var(--green);--tint-strong: var(--line-strong);--ramp-flow-dye: var(--card);--ramp-flow-zero: var(--card);--ramp-flow-negative: var(--blue);--ramp-flow-positive: var(--gold);--ramp-surface-night-0: var(--ramp-surface-0);--ramp-surface-night-1: var(--ramp-surface-1)}#main :is(.stage.night,.flow-fields,.trace-event,.quantum-stage){border:1px solid var(--line)}#main .night .stage-top,#main .stage.night .stage-top{border-bottom-color:var(--line)!important;color:var(--muted)}#main :is(.class-output,.event-message){background:var(--tint)!important;color:var(--ink)!important;border-left:3px solid var(--ink)}#main .event-message b{color:var(--green)!important}.stage-palette-world,#main :is(#world-main,.world-secondary,.cooling-object,.cooling-budget){--night: var(--card);--night-2: var(--paper);--night-line: var(--line);--night-ink: var(--ink);--night-muted: var(--muted);--tint: var(--ink);--white: var(--ink);--draw-ice: var(--blue);--draw-mint: var(--green);--peach: var(--rust-soft);--draw-lime-bright: var(--green);--lime: var(--green)}#main :is(#world-main,.world-secondary,.cooling-object){background:var(--card)!important;border:1px solid var(--line);color:var(--ink)}#main .cooling-budget strong{color:var(--rust)!important}#main .cooling-budget>p{color:var(--muted)!important}#main .cooling-budget>div:first-child>span{color:var(--muted)!important}#main :is(.stage.night,.flow-fields,.trace-event,.quantum-stage,#world-main,.world-secondary,.cooling-object) :is(.stage-foot,.stage-top,figcaption,figcaption *,.tag,.flow-scale,small){color:var(--muted)!important}.ax-lv2,#main .sig-k-b,#main .sig-k-rho{color:color-mix(in srgb,var(--blue) 70%,var(--ink))!important}.ax-lv3,#main .sig-k-o{color:color-mix(in srgb,var(--gold) 45%,var(--ink))!important}#main .sig-moved a,#main .ask-core-note a,#main p>a[href^="#"]:not([class]){text-decoration:underline;text-underline-offset:2px}#main :is(.bs-part,.core-term,.ax-pair>div) .engine-formula{overflow:visible}#main .ax-pair>div{overflow-x:visible}#main :is(.stage.night,.flow-fields) .tag{opacity:1;color:var(--muted)!important}#main .class-output :is(p,span,small,b){color:var(--ink)!important}#main .heat-equation :is(span,i,b){color:var(--muted)!important}#main .heat-equation b{color:var(--ink)!important}#main .quantum-stage :is(.plot-heading span,.probability-legend span){color:var(--muted)!important}#main .class-output p{opacity:1!important}.ax-lv3{color:color-mix(in srgb,var(--rust) 78%,var(--ink))!important}#main .sig-hodge-h>small{color:var(--muted)!important}:root[data-theme=dark] #main :is(.stage.night,.wave-lab canvas,.zeta-pair canvas,.finite-field canvas,.flow-fields,.flow-fields figure,.trace-event,.quantum-stage,.quantum-prob>div,.compare-figure),:root[data-theme=dark] body>.stage-palette:not(.stage-palette-world){--night: var(--card);--night-2: var(--tint);--night-line: var(--line);--night-ink: var(--ink);--night-muted: var(--muted);--lime: var(--green);--tint-strong: var(--line-strong);--ramp-flow-dye: var(--card);--ramp-flow-zero: var(--card);--ramp-flow-negative: var(--blue);--ramp-flow-positive: var(--gold)}:root[data-theme=dark] #main :is(#world-main,.world-secondary,.cooling-object,.cooling-budget),:root[data-theme=dark] body>.stage-palette-world{--night: var(--card);--night-2: var(--paper);--night-line: var(--line);--night-ink: var(--ink);--night-muted: var(--muted);--tint: var(--ink);--white: var(--ink);--draw-ice: var(--blue);--draw-mint: var(--green);--peach: var(--rust-soft);--draw-lime-bright: var(--green);--lime: var(--green)}:root{--stage-edge: color-mix(in srgb, var(--line-strong) 80%, var(--ink));--stage-shadow: 0 1px 2px rgba(34, 61, 54, .1), 0 14px 32px -18px rgba(34, 61, 54, .42)}:root[data-theme=dark]{--stage-edge: color-mix(in srgb, var(--line) 70%, #fff);--stage-shadow: 0 0 0 1px rgba(255, 255, 255, .05), 0 16px 34px -14px rgba(0, 0, 0, .7)}#main :is(.ui-stage,.stage.night,.flow-fields,#world-main,.world-secondary,.cooling-object,.nsl-stage,.rz-stage,.pnp-stage,.bs-stage,.hl-stage,.yl-stage,.pl-stage,.sig-grid-figure,.sig-strip-figure,.xp-fig,.pr-hero figure){background-color:var(--card);border:1px solid var(--stage-edge)!important;box-shadow:var(--stage-shadow)}

.world-page{display:block;padding-top:14px}.world-page .world-sections{min-width:0}.world-page .world-section{padding-top:26px}.world-page .world-section:first-child{padding-top:18px}.world-page .world-section+.world-section{border-top:1px solid var(--line);margin-top:26px}.world-page h1{font:500 clamp(26px,3vw,38px)/1.3 var(--serif);margin:0 0 10px;letter-spacing:0}.world-page .layer-lede{color:var(--muted);max-width:70ch;margin:0 0 16px;line-height:1.75}.layer-bar{position:sticky;top:var(--masthead-height, 72px);z-index:25;display:flex;align-items:stretch;gap:14px;background:var(--paper);border-bottom:1px solid var(--line-strong);padding:6px 0 0}.lb-world{position:relative;flex:0 0 auto}.lb-world>summary{list-style:none;display:flex;align-items:baseline;gap:8px;cursor:pointer;padding:8px 12px 10px 0;min-height:44px;box-sizing:border-box}.lb-world>summary::-webkit-details-marker{display:none}.lb-world .lb-name{font:500 var(--fs-lead)/1.2 var(--serif);color:var(--ink)}.lb-world .lb-full{font-size:var(--fs-caption);color:var(--muted);max-width:16em;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.lb-world>summary i{font-style:normal;color:var(--muted);font-size:var(--fs-caption)}.lb-worlds{position:absolute;left:0;top:100%;z-index:40;min-width:260px;display:flex;flex-direction:column;background:var(--card);border:1px solid var(--line-strong);box-shadow:0 6px 18px color-mix(in srgb,var(--ink) 14%,transparent);padding:4px 0}.lb-worlds a{padding:8px 14px;color:var(--ink);text-decoration:none;font-size:var(--fs-small)}.lb-worlds a:hover{background:var(--tint)}.lb-worlds a[aria-current]{font-weight:600;box-shadow:inset 3px 0 0 var(--rust)}.lb-list{list-style:none;margin:0;padding:0;display:flex;align-items:stretch;gap:2px;min-width:0;overflow-x:auto;scrollbar-width:none;flex:1 1 auto}.lb-list::-webkit-scrollbar{display:none}.lb-item a{display:grid;grid-template-columns:auto auto;grid-template-rows:auto auto;column-gap:6px;align-items:baseline;padding:6px 12px 8px;color:var(--muted);text-decoration:none;border-bottom:3px solid transparent;white-space:nowrap;min-height:44px;box-sizing:border-box}.lb-item a i{font-style:normal;grid-row:1 / 3;align-self:center;font-size:var(--fs-small);color:var(--faint);width:1.1em;text-align:center}.lb-item a b{font-weight:500;font-size:var(--fs-small);color:var(--ink)}.lb-item a small{font-size:var(--fs-caption);color:var(--muted);grid-column:2;max-width:13em;overflow:hidden;text-overflow:ellipsis}.lb-item a:hover{border-bottom-color:var(--line-strong)}.lb-item a:hover b{color:var(--rust)}.lb-item a[aria-current]{border-bottom-color:var(--rust);background:var(--card)}.lb-item a[aria-current] b{font-weight:700}.lb-item a[aria-current] i{color:var(--rust)}.lb-item.is-branch a b{color:var(--muted)}.lb-sep{flex:0 0 1px;background:var(--line);margin:10px 8px}.lb-item a:focus-visible,.lb-world>summary:focus-visible{outline:2px solid var(--rust);outline-offset:-2px}.layer-sub{display:flex;flex-wrap:wrap;gap:4px 18px;padding:10px 0 0;font-size:var(--fs-small)}.layer-sub a{color:var(--muted);text-decoration:none;border-bottom:1px solid transparent;padding:2px 0}.layer-sub a:hover{color:var(--rust)}.layer-sub a[aria-current]{color:var(--ink);border-bottom-color:var(--rust)}.layer-foot{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:14px 24px;margin:40px 0 10px;padding:18px 20px;background:var(--tint);border-left:3px solid var(--rust)}.layer-foot .lf-next{display:flex;flex-direction:column;gap:4px}.layer-foot .lf-next small,.layer-foot .lf-end{font-size:var(--fs-small);color:var(--muted)}.layer-foot .lf-side{display:flex;flex-wrap:wrap;gap:8px;align-items:center;font-size:var(--fs-small);color:var(--muted)}.layer-scenes{margin-top:30px}.layer-scenes>h2{font:500 var(--fs-h3)/1.4 var(--serif);margin:0 0 10px}.layer-scene-cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:10px}.layer-scene{position:relative;display:flex;flex-direction:column;gap:4px;padding:12px 34px 12px 14px;background:var(--card);border:1px solid var(--line);color:var(--ink);text-decoration:none}.layer-scene small{font-size:var(--fs-caption);color:var(--green)}.layer-scene strong{font:500 var(--fs-body)/1.45 var(--serif)}.layer-scene span{font-size:var(--fs-caption);color:var(--muted);line-height:1.55}.layer-scene i{position:absolute;right:12px;top:12px;font-style:normal;color:var(--muted)}.layer-scene:hover{border-color:var(--ink)}.layer-scene:hover i{color:var(--rust)}.world-page .items-head{font:500 var(--fs-body)/1.4 var(--sans);color:var(--muted);margin:22px 0 6px;letter-spacing:.02em}.world-page details.world-item{padding:0}.world-page details.world-item>summary{list-style:none;cursor:pointer;display:flex;align-items:baseline;gap:10px;padding:12px 2px}.world-page details.world-item>summary::-webkit-details-marker{display:none}.world-page details.world-item>summary:before{content:"▸";color:var(--muted);flex:0 0 auto}.world-page details.world-item[open]>summary:before{content:"▾"}.world-page details.world-item>summary h3{margin:0;font-size:var(--fs-lead)}.world-page details.world-item>summary .item-kicker{order:2;margin:0}.world-page details.world-item>.item-body,.world-page details.world-item>div{padding:0 2px 18px 22px}.world-page details.world-item:hover>summary h3{color:var(--rust)}.news-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column}.news-item{border-top:1px solid var(--line);padding:10px 0}.news-item:last-child{border-bottom:1px solid var(--line)}.news-meta{display:flex;flex-wrap:wrap;gap:4px 10px;align-items:baseline;margin:0 0 3px;font-size:var(--fs-caption);color:var(--muted)}.news-meta time{font-variant-numeric:tabular-nums;color:var(--ink)}.news-meta a{color:var(--green)}.news-kind{border:1px solid var(--line-strong);padding:0 5px}.news-item.is-claim .news-kind,.news-item.is-official .news-kind{border-color:var(--rust);color:var(--rust)}.news-item.is-theorem .news-kind{border-color:var(--green);color:var(--green)}.news-item h3{font:500 var(--fs-body)/1.5 var(--serif);margin:0}.news-body{margin:6px 0 4px;font-size:var(--fs-small);line-height:1.7}.news-status{margin:2px 0;font-size:var(--fs-caption);color:var(--muted)}.news-src{margin:4px 0 0;display:flex;flex-wrap:wrap;gap:4px 12px;font-size:var(--fs-caption)}.news-src a{color:var(--green)}.news-checked{font-size:var(--fs-caption);color:var(--muted);margin:8px 0 0}#sec-news .news-list{max-width:82ch}.home-grid{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:26px;align-items:start}.home-main{min-width:0}.news-rail{position:sticky;top:calc(var(--masthead-height, 72px) + 14px);max-height:calc(100vh - var(--masthead-height, 72px) - 28px);overflow-y:auto;background:var(--card);border:1px solid var(--line);padding:14px 16px;scrollbar-width:thin}.news-rail>header h2{font:500 var(--fs-h3)/1.3 var(--serif);margin:0 0 4px}.news-rail>header p{font-size:var(--fs-caption);color:var(--muted);margin:0 0 10px;line-height:1.6}.news-rail details>summary{list-style:none;cursor:pointer}.news-rail details>summary::-webkit-details-marker{display:none}.news-rail details[open]>summary h3{color:var(--ink)}.news-rail details:not([open])>summary h3:after{content:" ▸";color:var(--faint)}.news-rail .news-item h3{font-size:var(--fs-small)}@media(max-width:1100px){.home-grid{grid-template-columns:minmax(0,1fr)}.news-rail{position:static;max-height:none}.news-rail .news-list{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));column-gap:20px}}.bs{display:flex;flex-direction:column;gap:14px}.bs-from{display:flex;flex-wrap:wrap;gap:6px;align-items:center;font-size:var(--fs-small);color:var(--muted)}.bs-part{--tone: var(--ink);display:inline-flex;flex-direction:column;align-items:center;gap:1px;padding:4px 9px;border:1px solid var(--line);border-bottom:3px solid var(--tone);background:var(--card);color:var(--ink);cursor:pointer;border-radius:var(--ui-radius, 2px)}.bs-part small{font-size:var(--fs-caption);color:var(--muted)}.bs-part .engine-formula{padding:2px 0;color:var(--ink)}.bs-part[aria-pressed=true]{background:color-mix(in srgb,var(--tone) 13%,var(--card));border-color:var(--tone)}.bs-cols{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}.bs-col{display:flex;flex-direction:column;gap:6px;background:var(--tint);padding:8px;min-width:0}.bs-col .bs-col-h{margin:0 0 2px;font-size:var(--fs-small);font-family:var(--sans);font-weight:500}.bs-node{text-align:left;padding:8px 10px;background:var(--card);border:1px solid var(--line);color:var(--ink);cursor:pointer;font-size:var(--fs-small);line-height:1.45;border-radius:var(--ui-radius, 2px);transition:opacity .15s}.bs-node:hover{border-color:var(--ink)}.bs-node.is-sel{background:var(--ink);color:var(--paper);border-color:var(--ink)}.bs-node.is-need{border-color:var(--green);box-shadow:inset 3px 0 0 var(--green)}.bs-node.is-up{border-color:var(--blue);box-shadow:inset 3px 0 0 var(--blue)}.bs-node.is-part{border-color:var(--rust);box-shadow:inset 3px 0 0 var(--rust)}.bs-node.is-dim{background:transparent;border-color:transparent}.bs-key i{display:inline-block;width:12px;height:12px;margin-right:6px;vertical-align:-1px;border:1px solid var(--line)}.bs-key .bs-k-sel{background:var(--ink)}.bs-key .bs-k-need{box-shadow:inset 3px 0 0 var(--green)}.bs-key .bs-k-up{box-shadow:inset 3px 0 0 var(--blue)}.bs-key .bs-k-part{box-shadow:inset 3px 0 0 var(--rust)}.bs-card{background:var(--card);border:1px solid var(--line);border-left:3px solid var(--ink);padding:12px 16px;display:flex;flex-direction:column;gap:6px;max-width:86ch}.bs-card header{display:flex;gap:10px;align-items:baseline}.bs-card header b{font:500 var(--fs-lead)/1.4 var(--serif)}.bs-card p{margin:0;line-height:1.75}.bs-rel{display:flex;flex-wrap:wrap;gap:4px 12px;align-items:baseline;font-size:var(--fs-small)}.bs-rel>span{color:var(--muted)}.bs-math{overflow-x:auto}.basics-rewrite{margin-top:34px}.basics-rewrite>h2{font:500 var(--fs-h3)/1.4 var(--serif);margin:0}.scene-location{display:block;padding:0;gap:0}.scene-location>.layer-bar{position:static;border-bottom:1px solid var(--line)}#main .workspace-heading{padding-bottom:14px}.scene-crumb-row{display:flex;flex-wrap:wrap;align-items:center;gap:6px 18px;padding:8px 0;font-size:var(--fs-label)}.scene-crumb-row .scene-crumbs{display:flex}.scene-crumb-row .scene-pos{color:var(--muted)}.scene-crumb-row .scene-step{display:flex;gap:14px}.scene-crumb-row .scene-step a{color:var(--muted);text-decoration:none}.scene-crumb-row .scene-step a:hover{color:var(--rust)}.scene-crumb-row .object-tools{margin-left:auto;display:flex;gap:16px;align-items:center}@media(max-width:900px){.lb-item a small{display:none}.lb-item a{grid-template-columns:auto auto;padding:8px 10px;align-items:center}.lb-item a i{grid-row:1}.lb-world .lb-full{display:none}}@media(max-width:700px){.layer-bar{gap:6px}.lb-world>summary{padding-right:4px}.lb-item a{padding:8px}.lb-sep{margin:10px 2px}.scene-crumb-row .scene-step{display:none}.scene-crumb-row .scene-crumbs{display:flex}.ask-top .wk-name{display:none}.ask-top .layer-sub{flex:1 1 100%;min-width:0;flex-wrap:nowrap;overflow-x:auto;white-space:nowrap;scrollbar-width:none}.ask-top .layer-sub::-webkit-scrollbar{display:none}.scene-crumb-row{padding:6px 0;gap:4px 14px}.scene-location{margin-bottom:10px}.layer-foot{padding:14px}.world-page .world-section+.world-section{margin-top:18px}}@media(max-width:480px){.bs-cols{grid-template-columns:minmax(0,1fr)}}.home-main{container-type:inline-size}@container (max-width: 1000px){.tile-title{padding:clamp(16px,3cqw,32px);gap:10px}.tile-title h1{font-size:clamp(26px,4.4cqw,44px)}.tile-title>p{font-size:var(--fs-body);line-height:1.65}.tile-title .hero-fig strong{font-size:clamp(26px,4.4cqw,40px)}}.home-main .hero-fig strong{white-space:nowrap}.home-main .hero-fig strong small{font-size:.42em}.world-page .known-refs>summary:after{content:none!important}.ask-top{display:flex;flex-wrap:wrap;align-items:baseline;justify-content:space-between;gap:4px 20px}.ask-top .world-kicker{margin:0}.ask-top .layer-sub{padding:0}.world-kicker .wk-name{color:var(--muted)}.world-page .world-ask h1{margin-bottom:6px}@media(max-width:700px){.world-page .world-ask h1{line-height:1.2;margin-bottom:4px}}.world-page .world-formal{display:flex;flex-wrap:wrap;align-items:baseline;gap:2px 16px}.world-page .world-formal>p:first-child{flex:1 1 100%;margin:0}.world-page .world-formal>.term-row{margin:0}.world-page .world-formal>details{flex:0 1 auto}.world-page .world-formal>details[open]{flex-basis:100%}.lb-item a{grid-template-rows:auto;padding-top:7px;padding-bottom:7px;min-height:40px;align-items:center}.lb-item a i{grid-row:1}.lb-world>summary{min-height:40px;padding-top:6px;padding-bottom:6px}.layer-bar{padding-top:2px}.world-page{padding-top:6px}.world-page .world-section:first-child{padding-top:12px}@media(max-width:700px){.core-lab-label{font-size:var(--fs-caption)}.core-lab-label>.core-lab-desc{display:none}}.home-route{display:flex;flex-wrap:wrap;align-items:center;gap:8px 16px;margin:14px 0 0;padding:10px 14px;background:var(--card);border:1px solid var(--line);font-size:var(--fs-small)}.home-route>p{margin:0;color:var(--muted)}.home-route ol,.home-route ul{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;align-items:center;gap:6px 10px}.home-route ul{padding-left:14px;border-left:1px solid var(--line)}.home-route li{display:inline-flex;align-items:baseline;gap:5px}.home-route li i{font-style:normal;color:var(--rust)}.home-route li b{font-weight:600}.home-route li span{color:var(--muted);font-size:var(--fs-caption)}.home-route .hr-branch i{color:var(--muted)}.home-route .hr-arrow{color:var(--faint)}@media(max-width:700px){.home-route li span{display:none}.home-route ul{padding-left:0;border-left:0}}.world-page .ask-lead{margin:10px 0 0}.world-page .ask-lead>figcaption h2{font:500 var(--fs-h3)/1.4 var(--serif);margin:0 0 6px}.world-page .ask-core-note{font-size:var(--fs-small);color:var(--muted)}.links-block>h2,.world-page .links-scenes>summary h2{font:500 var(--fs-h3)/1.4 var(--serif);margin:0 0 12px}.world-page .links-scenes>summary h2{display:inline}.world-page .section-lede>h2,.world-page #sec-shadows .ax-block>h2{font:500 var(--fs-h3)/1.4 var(--serif);margin:0 0 8px}.world-page .ax-group header h3{font:500 var(--fs-lead)/1.4 var(--serif);margin:0}

.home-rule{border:0;border-top:1px solid var(--ink);margin:34px 0 0}.news-band{padding:22px 0 8px}.news-band>header{display:flex;flex-wrap:wrap;align-items:baseline;gap:6px 18px;margin-bottom:14px}.news-band>header h2{font:500 var(--fs-h2)/1.3 var(--serif)}.news-band>header p{font-size:var(--fs-small);color:var(--muted);flex:1 1 280px}.news-more{font-size:var(--fs-small);color:var(--green);border-bottom:1px solid var(--line-strong)}.news-grid{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}.news-grid .news-item{background:var(--card);border:1px solid var(--line);padding:14px 16px;display:flex;flex-direction:column;gap:6px}.news-grid .news-item.is-lead{grid-column:span 2;border-left:3px solid var(--rust)}.news-grid .news-item h3{font:500 var(--fs-h3)/1.45 var(--serif);margin:0}.news-grid .is-lead h3{font-size:var(--fs-h2)}.news-grid .news-meta{display:flex;flex-wrap:wrap;gap:4px 10px;font-size:var(--fs-caption);color:var(--muted);margin:0}.news-grid .news-meta a{color:var(--green)}.news-grid .news-status{font-size:var(--fs-small);color:var(--rust);margin:0}.news-grid details summary{font-size:var(--fs-small);color:var(--muted)}.news-grid .news-body{font-size:var(--fs-small);line-height:1.8;margin:8px 0 6px}.news-grid .news-src{display:flex;flex-wrap:wrap;gap:4px 14px;font-size:var(--fs-caption)}.news-grid .news-src a{color:var(--green)}.news-ai{font-size:var(--fs-caption);color:color-mix(in srgb,var(--blue) 75%,var(--ink));border:1px solid currentColor;border-radius:9px;padding:0 7px;white-space:nowrap}@media(max-width:980px){.news-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}@media(max-width:640px){.news-grid{grid-template-columns:1fr}.news-grid .news-item.is-lead{grid-column:auto}}.adv-tag{font-style:normal;font-size:var(--fs-nano, 9px);margin-left:5px;padding:0 5px;border-radius:7px;border:1px solid currentColor;vertical-align:1px;white-space:nowrap}.adv-tag.is-result{color:var(--green)}.adv-tag.is-barrier{color:var(--rust)}.adv-tag.is-tool{color:color-mix(in srgb,var(--blue) 75%,var(--ink))}.tile-lead .adv-tag{color:inherit;opacity:.85}.brand-mark{display:inline-flex;align-items:center;color:var(--rust);letter-spacing:0;margin-right:2px}.brand-mark .site-logo{width:32px;height:32px}@media(max-width:640px){.brand-mark .site-logo{width:26px;height:26px}}.world-clay{margin:6px 0 0;font-size:var(--fs-small)}.world-clay a{color:var(--green);border-bottom:1px solid var(--line-strong)}.q-detail{border-top:1px solid var(--ink);margin-top:30px;padding-top:6px}.q-detail>summary{display:flex;align-items:baseline;gap:14px;flex-wrap:wrap;list-style:none;padding:12px 0}.q-detail>summary::-webkit-details-marker{display:none}.q-detail>summary h2{font-size:var(--fs-h2);margin:0}.q-detail>summary h2:after{content:" ▾";color:var(--muted);font-size:.7em}.q-detail[open]>summary h2:after{content:" ▴"}.q-detail>summary span{font-size:var(--fs-small);color:var(--muted)}.search-catalog{font-size:var(--fs-small);color:var(--muted);margin:10px 0 4px}.search-catalog a{color:var(--green)}.scene-world{display:none}@media(max-width:700px){.scene-location>.layer-bar{display:none}.scene-crumb-row{flex-wrap:nowrap;gap:8px;padding:8px 0;border-bottom:1px solid var(--line)}.scene-crumb-row .scene-crumbs{flex:1 1 auto;min-width:0;align-items:baseline;gap:6px;white-space:nowrap;overflow:hidden}.scene-crumb-row .scene-crumbs>[aria-current]{overflow:hidden;text-overflow:ellipsis;min-width:0}.scene-crumb-row .scene-pos{display:none}.scene-world{display:inline;font-weight:600;color:var(--ink)}.scene-world:after{content:" ·";color:var(--muted);font-weight:400}}.art-head{margin-bottom:18px}.art-head h1{font-size:clamp(30px,3.4vw,46px);line-height:1.3}.art-head p{font:var(--fs-lead)/1.8 var(--serif);color:var(--muted);margin-top:8px;max-width:44em}.tile-lead .adv-tag{display:none}.news-grid .news-item.is-lead{grid-column:auto}

:root[data-theme=dark]{color-scheme:dark;--amber:#4d4128;--blue:#77afbf;--blue-bright:#69b1c6;--blue-soft:#90b0b7;--card:#1d2522;--control-accent:#7fb19c;--control-value:#e7876a;--data-1:#81b0a1;--data-2:#df8c6b;--data-3:#80aacd;--data-4:#ca9c4d;--data-ink:var(--ink);--data-muted:var(--muted);--faint:#7d8c83;--gold:#c8a95f;--green:#7fb19c;--green-soft:#8daf95;--grid:#34423c;--hint-ink:var(--muted);--ink:#e3e8df;--legend-ink:var(--muted);--lime:#394330;--line:#34423c;--line-strong:#4a5a53;--muted:#a8b6ad;--olive:#98ac90;--olive-dark:#8eaf8b;--paper:#161d1b;--peach:#e89f72;--rust:#e7876a;--rust-deep:#d99079;--rust-mid:#d79172;--rust-soft:#db906c;--rust-tint:#4a2c22;--slate:#86abba;--studio-green:#7fb19c;--studio-ink:var(--ink);--studio-line:var(--line);--studio-muted:var(--muted);--studio-surface:var(--card);--studio-warm:#e7876a;--tint:#24302b;--tint-strong:#2c3a34;--tint-warm:#2d2721;--umber:#aaa493;--work-current:#e7876a;--work-ink:var(--ink);--work-line:var(--line);--work-muted:var(--muted);--work-reference:#77afbf;--work-surface:var(--card);--world-line:var(--line);--world-paper:var(--paper);--world-rust:#e7876a;--xv-axis:#9da89d;--xv-current:#e7876a;--xv-ends:#d2e3dc;--xv-focus:#e7876a;--xv-grid:#2a3531;--xv-path:#d4e3da;--xv-pose:#e38a6c;--xv-region-1:#82b19c;--xv-region-2:#df8d6b;--xv-region-3:#7cadc3;--xv-region-4:#c1a059;--xv-region-5:#b697c5;--xv-region-6:#72b2b0;--xv-series-0:#dc8e6f;--xv-series-1:#92af83;--xv-series-2:#6cafc9;--xv-text:var(--muted)}:root[data-theme=dark] :is(#main .sig-primary,.dispatch-check .action){color:var(--paper)}:root[data-theme=dark] body{background:var(--paper);color:var(--ink)}.top-tools .tool-toggle{min-height:32px;padding:3px 10px;border:1px solid var(--line-strong);background:transparent;color:var(--ink);font-size:var(--fs-label);border-radius:var(--control-radius,2px);cursor:pointer}.top-tools .tool-toggle[aria-pressed=true]{background:var(--ink);color:var(--paper)}.top-tools{display:flex;gap:8px;align-items:center}@media(max-width:700px){.top-tools{gap:4px}.top-tools .tool-toggle{min-height:36px;padding:2px 7px}}:root[data-theme=dark] :is(.stage-palette,.stage.night,.atlas-feature,.wave-lab canvas,.zeta-pair canvas,.finite-field canvas,.trace-event,.quantum-stage,.quantum-prob>div,.coefficient-line i,.hero-keys a:first-child,.world-constellation,.feature,.feature-cosmos,.domain-tabs a.active,#world-main,.world-secondary,.world-controls button[data-world-action],.dossier-bridge,.cooling-object,.cooling-budget,.atlas-specimen.dark,.flow-fields,.flow-fields figure,.auction-orders button.chosen,.connection-worlds button[aria-pressed=true],.roster-verdict,.robot-verdict,.robot-physical,.robot-configuration,.numerics-field,.analytic-verdict,.rail-link.active,.specimen,.specimen-label,.model-distance>div,.compare-figure,.brain-matrix button){--amber:#efd79c;--blue:#417c8c;--blue-bright:#4f9bb1;--blue-soft:#8fb0b8;--card:#fffdf7;--control-accent:#2e624e;--control-value:#a6472b;--data-1:#48796a;--data-2:#b56240;--data-3:#5681a4;--data-4:#c69641;--data-ink:#223d36;--data-muted:#52685e;--faint:#8a998f;--gold:#c9a95a;--green:#2e624e;--green-soft:#6f9278;--grid:#cbd3c9;--hint-ink:#52685e;--ink:#223d36;--legend-ink:#52685e;--lime:#c9d7a4;--line:#cbd3c9;--line-strong:#a9b5a4;--muted:#52685e;--olive:#586b50;--olive-dark:#3f5f3d;--paper:#f5f2eb;--peach:#eb9e6e;--rust:#a6472b;--rust-deep:#7f3b26;--rust-mid:#a15c3c;--rust-soft:#c77a55;--rust-tint:#e9cdb9;--slate:#345967;--studio-green:#2e624e;--studio-ink:#223d36;--studio-line:#cbd3c9;--studio-muted:#52685e;--studio-surface:#fffdf7;--studio-warm:#a6472b;--tint:#e4e9da;--tint-strong:#d3dcc6;--tint-warm:#efe6da;--umber:#6f6958;--work-current:#a6472b;--work-ink:#223d36;--work-line:#cbd3c9;--work-muted:#52685e;--work-reference:#417c8c;--work-surface:#fffdf7;--world-line:#cbd3c9;--world-paper:#f5f2eb;--world-rust:#a6472b;--xv-axis:#8f9b8f;--xv-current:#a6472b;--xv-ends:#203e33;--xv-focus:#a6472b;--xv-grid:#e1e4da;--xv-path:#253e31;--xv-pose:#ad5537;--xv-region-1:#356552;--xv-region-2:#ac5a37;--xv-region-3:#42758b;--xv-region-4:#947222;--xv-region-5:#795a87;--xv-region-6:#397d7c;--xv-series-0:#a25636;--xv-series-1:#668357;--xv-series-2:#367f99;--xv-text:#52685e}:root[data-theme=dark] :is(.action.light,.dark-controls .seg button.active,.world-tabs a.active,.feature-cooling,.world-search input,.domain-tabs a:hover,.world-stats strong,.world-select select,.engine-formula,.connection-proposal textarea,.engine-ledger textarea,.engine-controls select,.week-roster .week-cell,.discovery-filters button[aria-pressed=true]){color:var(--ink)}:where(:root[data-theme=dark]) :where(.analytic-verdict,.brain-matrix button,.coefficient-line i,.model-distance>div,.robot-physical,.robot-verdict,.roster-verdict,.world-controls button[data-world-action]){color:var(--ink)}@media(max-width:700px){html[data-lang=en] .masthead .brand>span:last-child{display:none}html[data-lang=en] .masthead .brand .brand-mark{display:inline;font-size:var(--fs-h3)}html[data-lang=en] .masthead .primary-nav{gap:0}html[data-lang=en] .masthead .primary-nav a{padding-left:7px;padding-right:7px;font-size:var(--fs-small);letter-spacing:0}}html[data-lang=en] .world-ask h1{font-size:clamp(24px,2.6vw,33px)}@media(max-width:700px){html[data-lang=en] .world-ask h1{font-size:var(--fs-h3)}html[data-lang=en] #main .sig-guess{font-size:var(--fs-caption)}}html[data-lang=en] .world-formal{max-width:112ch}html[data-lang=en] #main .sig-guess>span{flex:1 1 340px}html[data-lang=en] .world-ask h1{font-size:clamp(23px,2.4vw,31px)}@media(max-width:700px){html[data-lang=en] .world-formal{font-size:var(--fs-caption);line-height:1.6}html[data-lang=en] .world-kicker{font-size:var(--fs-caption)}html[data-lang=en] #main .sig-yang .sig-seg button{padding:2px 6px;font-size:var(--fs-caption)}html[data-lang=en] #main .sig-guess>span{flex-basis:100%}}html[data-lang=en] #main .sig-cascade>.sig-cascade-controls{grid-template-columns:minmax(0,1.5fr) minmax(0,2fr)}@media(max-width:700px){html[data-lang=en] #main .sig-cascade>.sig-cascade-controls{grid-template-columns:minmax(0,1fr)}html[data-lang=en] #main .sig-cascade-more>summary{margin-bottom:0}}@media(max-width:360px){.masthead .brand>span:last-child{display:none}.masthead .brand .brand-mark{display:inline;font-size:var(--fs-h3)}.masthead .primary-nav a{padding-left:6px;padding-right:6px}.top-tools .tool-toggle{padding:2px 5px}}