:root{color-scheme:light;--bg:#fff;--paper:#fff;--ink:#1d1d1f;--muted:#6e6e73;--line:#e8e8ed;--soft:#f5f5f7;--accent:#0066cc;--warning:#8b6428}
.filter-panel:not([open])>.filter-fields,.download-menu:not([open])>div{display:none}
:root[data-theme=dark]{color-scheme:dark;--bg:#1f1e1d;--paper:#262624;--ink:#f0eee6;--muted:#b0aea5;--line:#3d3d3a;--soft:#30302e;--accent:#e0997b;--warning:#dfbb83}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--ink);font:14px/1.5 -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}
button,input,select{font:inherit;color:inherit}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}
button{cursor:pointer;background:none;border:0}
button,a,summary{touch-action:manipulation}
button:focus-visible,a:focus-visible,summary:focus-visible,input:focus-visible,select:focus-visible{outline:2px solid var(--accent);outline-offset:4px}
p{margin:.5rem 0 1rem}
[hidden]{display:none!important}
.sr-only,.skip-link{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%)}
.skip-link:focus{position:fixed;top:12px;left:12px;width:auto;height:auto;clip-path:none;background:var(--paper);padding:10px;z-index:10}
.site-header,main,footer{max-width:1280px;margin:auto;padding-left:40px;padding-right:40px}
.site-header{height:76px;display:flex;align-items:center;gap:30px;border-bottom:1px solid var(--line)}
.wordmark{display:flex;align-items:center;gap:10px;color:var(--ink);font-size:18px;font-weight:600;letter-spacing:-.035em}
.wordmark:hover{text-decoration:none}
.mark,.mark svg{width:34px;height:34px}
.mark{display:grid;place-items:center}
.site-header nav{margin-left:auto;display:flex;gap:28px;font-size:13px}
.site-header nav a{color:var(--muted)}
.site-header nav a[aria-current=page]{color:var(--ink)}
.icon-button{width:34px;height:34px;display:grid;place-items:center;border-radius:50%;font-size:20px;flex-shrink:0}
.icon-button:hover{background:var(--soft)}
.catalogue-menu{position:relative;z-index:5}
.catalogue-menu>summary{display:flex;align-items:center;gap:7px;list-style:none;color:var(--muted)}
.catalogue-menu>summary::-webkit-details-marker{display:none}
.catalogue-menu[data-active=true]>summary,.catalogue-menu[open]>summary{color:var(--ink)}
.nav-chevron{width:6px;height:6px;border-right:1px solid currentColor;border-bottom:1px solid currentColor;transform:translateY(-2px) rotate(45deg)}
.catalogue-menu[open] .nav-chevron{transform:translateY(1px) rotate(225deg)}
.catalogue-menu:not([open])>.catalogue-views{display:none}
.catalogue-views{position:absolute;right:0;top:calc(100% + 16px);width:344px;max-width:calc(100vw - 40px);padding:10px;background:var(--paper);border:1px solid var(--line);border-radius:12px;box-shadow:0 12px 32px #00000014}
.catalogue-group-label{font-size:12px;font-weight:500;color:var(--muted);margin:8px 12px 4px}
.catalogue-group+.catalogue-group{margin-top:8px;padding-top:8px;border-top:1px solid var(--line)}
.catalogue-views ul{list-style:none;margin:0;padding:0}
.site-header .catalogue-views a{display:flex;align-items:center;justify-content:space-between;gap:12px;min-height:40px;padding:9px 12px;border-radius:6px;color:var(--ink)}
.site-header .catalogue-views a:hover,.site-header .catalogue-views a:focus-visible{background:var(--soft);text-decoration:none}
.catalogue-views a[aria-current=page]{font-weight:500}
.catalogue-views a[aria-current=page]::after{content:'✓';color:var(--muted)}
main{min-height:calc(100vh - 150px);padding-bottom:48px}
.page-intro{padding:50px 0 24px}
h1{font-size:clamp(30px,3.4vw,46px);line-height:1.14;letter-spacing:-.045em;font-weight:600;margin:0}
.notation-strip{display:flex;align-items:center;gap:30px;color:var(--muted);font-size:13px;padding-bottom:26px}
.notation-strip>a{margin-left:auto;font-size:12px}
.math{font-family:Georgia,"Times New Roman",serif;font-size:17px}
.math sub{font-size:.65em}
.notation-strip .math{font-size:14px}
.subtle{font-size:12px;color:var(--muted)}
.toolbar{display:flex;align-items:start;gap:12px;margin:6px 0 20px;flex-wrap:wrap}
.search-label{flex:1;min-width:180px}
input[type=search]{width:100%;height:44px;border:0;border-radius:9px;background:var(--soft);padding:0 14px;font-size:14px}
select{border:1px solid var(--line);background:var(--paper);border-radius:7px;padding:9px;min-width:0;width:100%}
summary{cursor:pointer;user-select:none}
.filter-panel{display:contents}
.filter-panel>summary,.download-menu>summary{height:44px;padding:11px 16px;border:1px solid var(--line);border-radius:9px;list-style:none;font-size:13px}
.filter-panel>summary::-webkit-details-marker,.download-menu>summary::-webkit-details-marker{display:none}
.filter-panel[open]>summary{background:var(--soft)}
.filter-fields{flex-basis:100%;order:3;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;padding:12px 0 4px}
.filter-fields label{min-width:0;display:flex;flex-direction:column;gap:6px;color:var(--muted);font-size:12px}
.download-menu{position:relative}
.download-menu>div{position:absolute;right:0;top:50px;z-index:3;background:var(--paper);border:1px solid var(--line);border-radius:9px;box-shadow:0 8px 24px #00000012;min-width:130px;padding:6px}
.download-menu a{display:block;padding:8px 12px;font-size:13px;border-radius:5px}
.download-menu a:hover{background:var(--soft);text-decoration:none}
.results-bar{display:flex;gap:18px;align-items:center;color:var(--muted);font-size:12px;margin-bottom:14px}
.text-button{font-size:12px;color:var(--accent);padding:0}
.text-button:hover{text-decoration:underline}
.selected-paper{display:flex;gap:12px;font-size:13px;margin:0 0 20px}
.selected-paper>span{color:var(--muted)}
.empty{padding:30px;text-align:center;color:var(--muted)}
.entry-detail{background:var(--soft);padding:26px;border-radius:10px;margin:0 0 24px}
.detail-heading{display:flex;align-items:start;justify-content:space-between;gap:16px}
.detail-heading h2{font-size:20px;line-height:1.4;font-weight:500;letter-spacing:-.025em;margin:0}
code{font:11px/1.5 ui-monospace,SFMono-Regular,monospace;overflow-wrap:anywhere}
.young-block{display:flex;gap:14px;flex-wrap:wrap}
.young-caption{font-size:10px;color:var(--muted);display:block}
.section-note{font-size:13px;color:var(--muted);margin:0 0 28px}
.source-list{display:grid}
.paper-item{border-top:1px solid var(--line);padding:20px 0;min-width:0}
.paper-title{font-size:16px;line-height:1.5;font-weight:500;letter-spacing:-.01em;margin:0;overflow-wrap:anywhere}
.paper-meta{display:flex;flex-wrap:wrap;gap:8px 16px;font-size:12px;color:var(--muted);margin:6px 0 10px;overflow-wrap:anywhere}
.paper-year{flex:0 0 120px}
.paper-year select{height:44px}
.search-button{height:44px;border-radius:9px;background:var(--accent);color:var(--bg);padding:0 20px}
.search-button:hover{opacity:.85}
.paper-entries{font-size:12px}
.paper-entries summary{color:var(--accent);width:fit-content}
.paper-entries ul{padding-left:20px;margin:10px 0 0}
.paper-entries li+li{margin-top:6px}
.paper-pagination{display:flex;align-items:center;justify-content:space-between;gap:16px;border-top:1px solid var(--line);padding-top:20px;font-size:13px}
.paper-pagination span{color:var(--muted)}
#paper-results{scroll-margin-top:24px}
.notation-view .section-heading,.notation-view .notation-panel>summary{display:none}
.notation-panel{border:0}
.notation-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));column-gap:50px}
.notation-grid h3{font-size:17px;letter-spacing:-.02em;font-weight:500;margin:0 0 14px}
.notation-grid p{font-size:13px;color:var(--muted);line-height:1.65;margin-bottom:24px}
.notation-grid p .math{font:inherit}
.notation-grid p sub{font-size:.75em;line-height:0}
.notation-grid details{font-size:13px;margin-bottom:24px}
.template-table{width:100%;border-collapse:collapse;font-size:12px;margin:14px 0 30px}
.template-table th,.template-table td{text-align:left;padding:9px 8px 9px 0;border-bottom:1px solid var(--line)}
.template-table th{color:var(--muted);font-weight:400}
.template-table .math{font-size:15px}
.about-data{max-width:680px;font-size:15px;line-height:1.7}
.about-data p{margin:0 0 22px;color:var(--muted)}
footer{display:flex;gap:24px;border-top:1px solid var(--line);padding-top:24px;padding-bottom:28px;font-size:12px}
footer a{color:var(--muted)}
@media(max-width:900px){
.site-header,main,footer{padding-left:24px;padding-right:24px}
.notation-grid{grid-template-columns:1fr}
.source-list{grid-template-columns:1fr}
.entry-detail{max-width:calc(100vw - 48px)}
.notation-strip{gap:20px;flex-wrap:wrap}
.notation-strip>a{margin-left:0}
}
@media(max-width:600px){
.site-header,main,footer{padding-left:20px;padding-right:20px}
.site-header{height:auto;min-height:72px;gap:16px;flex-wrap:wrap;padding-top:16px;padding-bottom:16px}
.wordmark{font-size:17px}
.site-header .icon-button{margin-left:auto}
.site-header nav{order:3;justify-content:space-between;width:100%;margin:0;padding-top:2px}
.page-intro{padding-top:34px}
h1{font-size:33px}
.notation-strip{display:grid;gap:8px;padding-bottom:22px}
.notation-strip>a{justify-self:start}
.toolbar{gap:10px}
.search-label{flex-basis:100%}
.filter-panel>summary,.download-menu>summary{height:38px;padding:8px 14px}
.filter-fields{grid-template-columns:1fr}
.results-bar{font-size:11px;gap:8px}
.entry-detail{padding:20px 14px;margin:8px -8px 20px;max-width:calc(100vw - 24px)}
.detail-heading h2{font-size:18px}
.paper-title{font-size:14px}
.paper-search .search-label{min-width:0}
.notation-grid{display:block}
.template-table{font-size:11px}
.selected-paper{font-size:12px}
}
.reference-list{list-style:none;padding:0;margin:0}
.reference-list li{display:grid;grid-template-columns:76px minmax(0,1fr);gap:16px}
.reference-list li+li{margin-top:22px}
.reference-list time{font-size:12px;color:var(--muted);padding-top:2px;white-space:nowrap}
.reference-meta{font-size:12px;color:var(--muted);margin:6px 0 0;overflow-wrap:anywhere}
.model-heading>.text-button{flex-shrink:0}
@media(max-width:600px){
.reference-list li{grid-template-columns:1fr;gap:5px}
.reference-list li+li{margin-top:24px}
}
@media(prefers-reduced-motion:no-preference){
a,button{transition:color .15s ease,background .15s ease}
}
.model-entry{padding:30px 0;border-top:1px solid var(--line)}
.model-heading{display:flex;align-items:baseline;gap:20px;margin-bottom:18px}
.model-heading h2{font-size:19px;font-weight:500;letter-spacing:-.025em;margin:0;flex:1}
.matrix-wrap{overflow:auto;max-width:100%}
.representation-matrix{border-collapse:collapse;text-align:left;width:100%;font-size:14px;table-layout:fixed}
.representation-matrix th{font-size:12px;font-weight:400;color:var(--muted);padding:10px 16px 10px 0;border-bottom:1px solid var(--line)}
.representation-matrix th:first-child{width:27%}
.representation-matrix th:last-child{width:12%}
.representation-matrix th sub{font-family:Georgia,serif}
.representation-matrix td{padding:11px 16px 11px 0;vertical-align:top;border-bottom:1px solid var(--line);overflow-wrap:anywhere}
.matrix-algebra,.matrix-note{display:block;font-size:10px;color:var(--muted);margin-top:3px}
.matrix-note.unresolved{color:var(--warning)}
.baseline-group td{border:0;padding:10px 0 0}
.baseline-group .text-button{color:var(--muted);font-size:14px;font-family:Georgia,serif}
.template-row{color:var(--muted)}
.load-more{display:block;width:100%;padding:18px;background:var(--soft);border-radius:10px;color:var(--accent);margin-top:24px}
.model-entry .entry-detail{margin-top:20px}
@media(max-width:600px){
.model-heading{flex-wrap:wrap;gap:10px 16px}
.model-heading h2{font-size:18px;flex-basis:auto;min-width:0}
.model-heading>.text-button{margin-left:auto}
.representation-matrix{min-width:320px}
.representation-matrix th:first-child{width:34%}
.representation-matrix th:last-child{width:24%}
.representation-matrix .math{font-size:16px}
.model-entry{padding:24px 0}
.model-entry .entry-detail{margin-left:0;margin-right:0;max-width:100%}
}
.notation-select{flex:0 0 154px;width:154px}
.notation-select select{height:44px;font-size:12px}
.algebra-diagrams{display:flex;align-items:end;gap:12px;flex-wrap:wrap;margin-top:5px}
.dynkin-factor{display:inline-flex;flex-direction:column;align-items:center;font-weight:400}
.dynkin-sketch{display:block;max-width:100%;overflow:auto}
.dynkin-sketch svg,.young-shape svg{display:block}
.diagram-caption,.abelian-caption{font-size:9px;color:var(--muted)}
.abelian-caption{padding-bottom:1px}
.young-component{display:inline-flex;flex-direction:column;align-items:start;min-width:20px}
.young-shape{display:inline-block;margin:5px 0;vertical-align:middle}
.young-charge{font-size:11px;align-self:center;color:var(--muted)}
.representation-compare{display:flex;flex-direction:column;gap:6px}
.dynkin-alternative{display:flex;align-items:baseline;flex-wrap:wrap;gap:5px}
.notation-label{font-size:10px;color:var(--muted)}
.representation-compare .math,.baseline-dynkin.math{font-size:14px}
.baseline-dynkin{display:block;color:var(--muted);margin-top:4px}
@media(max-width:600px){
.notation-select select{height:38px;padding:7px}
.representation-compare .math{font-size:14px}
.algebra-diagrams{gap:8px}
}
.rep-conjugate{ display: inline-block; white-space: nowrap; text-decoration-line: overline; text-decoration-thickness: .065em; text-decoration-skip-ink: none; }
.core-open{font-size:13px;white-space:nowrap}
.core-members{font-size:12px;color:var(--muted);margin:-6px 0 16px;line-height:1.6}
.core-matrix th:last-child{width:12%}
.core-entry .model-heading{margin-bottom:12px}
.core-title{color:inherit}
.algebra-branches{display:flex;flex-wrap:wrap;gap:8px 22px;font-size:13px}
.layer-context{margin:-6px 0 10px}
.layer-context .math{font-size:19px}
.algebra-entry .model-heading h2.math,.algebra-entry .core-title.math{font-size:24px}
.algebra-overview{display:flex;align-items:end;justify-content:space-between;gap:20px}
.algebra-overview .algebra-diagrams{margin:0;gap:26px}
.algebra-entry{padding:30px 0}
.filter-fields{grid-template-columns:repeat(3,minmax(0,1fr))}
@media(max-width:900px){
.filter-fields{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media(max-width:600px){
.site-header nav{position:relative}
.catalogue-menu{position:static}
.catalogue-views{left:0;right:0;top:calc(100% + 12px);width:auto;max-width:none}
.algebra-entry .model-heading h2{flex-basis:auto}
.algebra-entry .model-heading{justify-content:space-between;align-items:center}
.algebra-entry .core-title.math,.algebra-entry .model-heading h2.math{font-size:21px}
.algebra-branches{flex-basis:100%;font-size:12px}
.core-open{font-size:12px}
.algebra-overview{align-items:center}
.filter-fields{grid-template-columns:1fr}
}