:root{--ink:#182036;--ink-soft:#4c576a;--navy:#0d1325;--navy-2:#172038;--paper:#f7f5ef;--white:#fffdf9;--line:#dedbd2;--accent:#bb7c41;--gold:#eac589;--mint:#94c9b7;--mono:ui-monospace,'SFMono-Regular',Consolas,monospace;--sans:Inter,'Segoe UI',system-ui,sans-serif;--serif:'Iowan Old Style',Baskerville,'Palatino Linotype',Georgia,serif}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--sans);-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}a:focus-visible,button:focus-visible,select:focus-visible,input:focus-visible,.table-scroll:focus-visible{outline:3px solid var(--accent);outline-offset:3px}
.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}
.skip-link{position:absolute;z-index:100;left:10px;top:-50px;padding:10px 14px;background:var(--gold);color:var(--navy)}.skip-link:focus{top:10px}
.site-header{height:77px;display:flex;align-items:center;gap:30px;padding:0 clamp(22px,4.5vw,86px);background:var(--navy);color:#eee9dd;border-bottom:1px solid #3b4050}
.brand{display:flex;align-items:center;gap:12px;flex:none}.brand-symbol{height:34px;width:34px;border:1px solid var(--gold);display:grid;place-items:center;border-radius:50%;font-family:var(--serif);font-size:25px;color:var(--gold);line-height:1}.brand-name{font-size:12px;letter-spacing:.17em;font-weight:700;line-height:1.3}.brand-sub{display:block;font-size:9px;letter-spacing:.3em;color:var(--gold);margin-top:3px}.top-nav{display:flex;gap:28px;margin-left:auto;align-self:stretch}.top-nav a{display:flex;align-items:center;position:relative;color:#b2b8c5;font-size:12px;letter-spacing:.04em;transition:color .2s}.top-nav a:hover,.top-nav .nav-active{color:var(--gold)}.top-nav .nav-active:after{content:'';position:absolute;bottom:0;left:0;right:0;height:2px;background:var(--gold)}.edition{white-space:nowrap;border-left:1px solid #3b4050;margin-left:18px;padding-left:25px;font:10px var(--mono);letter-spacing:.07em;color:#9ba5b6}.edition-dot{display:inline-block;width:5px;height:5px;margin:0 4px 1px;border-radius:50%;background:var(--mint)}
main>section{padding-inline:clamp(22px,4.5vw,86px)}.intro{background:var(--navy);color:#ece7d9;padding-top:38px;padding-bottom:36px;position:relative;overflow:hidden}.intro:before{content:'';position:absolute;inset:0 0 0 auto;width:50%;background:radial-gradient(ellipse at 80% 100%,#302c38 0%,transparent 65%);pointer-events:none}.intro>*{position:relative}.eyebrow{font:10px var(--mono);letter-spacing:.16em;color:var(--accent);font-weight:500}.intro .eyebrow{color:var(--gold)}.tiny-diamond{width:6px;height:6px;background:var(--gold);transform:rotate(45deg);display:inline-block;margin-right:8px;vertical-align:2px}.intro-grid{display:flex;justify-content:space-between;align-items:end;gap:50px}h1,h2,h3,p{margin-top:0}h1{font:normal clamp(46px,5.4vw,84px)/.98 var(--serif);letter-spacing:-.027em;margin:18px 0 12px}h1 em{font-weight:400;color:var(--gold)}.intro-text{max-width:620px;color:#b9bfca;font-size:13px;line-height:1.5;margin:0}.intro-math{min-width:270px;padding:20px 25px 15px;border-left:1px solid #555264;color:#d9dce1;margin-bottom:2px}.math-small{font:10px var(--mono);letter-spacing:.1em;color:#929cae}.math-formula{font:26px var(--serif);white-space:nowrap;margin:9px 0}.math-formula sub,.math-formula sup{font-size:12px}.math-sigma{font-size:33px}.math-rule{height:1px;width:100%;background:#394254;margin-bottom:11px}
.workspace,.classification-section,.papers-section,.sources-section{padding-top:38px;padding-bottom:58px;scroll-margin-top:10px}.section-heading{display:flex;align-items:end;justify-content:space-between;gap:16px;margin-bottom:20px}.section-heading h2{font:normal clamp(30px,3.3vw,44px)/1 var(--serif);letter-spacing:-.02em;margin:8px 0 0}.section-aside{font:9px var(--mono);color:#87909b;letter-spacing:.09em;padding-bottom:5px}.aside-line{width:30px;height:1px;background:#b6b4ad;display:inline-block;vertical-align:middle;margin:0 7px}
.workspace-grid{display:grid;grid-template-columns:minmax(0,1fr) 280px;gap:17px;align-items:start}.atlas-panel{min-width:0;background:var(--white);border:1px solid var(--line);box-shadow:0 8px 30px #17213a08}.control-bar{min-height:68px;display:flex;align-items:center;gap:22px;padding:12px 20px;border-bottom:1px solid var(--line);flex-wrap:wrap}.control-group{display:flex;align-items:center;gap:12px}.control-label{font:9px var(--mono);letter-spacing:.09em;color:#788091;white-space:nowrap}.rank-filters{display:flex;gap:3px}.rank-btn{font:11px var(--mono);border:1px solid transparent;background:none;color:#7d8797;cursor:pointer;padding:7px 10px;min-width:35px;transition:.2s}.rank-btn:hover{border-color:#c5beaf;color:var(--ink)}.rank-btn.active{background:var(--navy);color:var(--gold)}select{border:1px solid #d8d5cc;color:var(--ink);font:11px var(--mono);background:var(--white);padding:7px 22px 7px 9px;cursor:pointer}.search-wrap{margin-left:auto;border-bottom:1px solid #c9c6bf;display:flex;align-items:center;max-width:107px}.search-symbol{font-size:22px;color:#858d9a;line-height:1}.search-wrap input{width:82px;border:0;background:transparent;padding:6px 3px;font:11px var(--mono);color:var(--ink);outline:0}.search-wrap input::-webkit-inner-spin-button{-webkit-appearance:none}.table-scroll{max-height:570px;overflow:auto;scrollbar-color:#b8b5ae #f0eee8}.table-scroll table{border-collapse:separate;border-spacing:0;table-layout:fixed;width:100%;min-width:450px}.table-scroll th{position:sticky;z-index:2;top:0;background:#f1efe9;color:#647081;font:10px var(--mono);letter-spacing:.06em;text-align:right;padding:11px 16px;border-bottom:1px solid var(--line);white-space:nowrap}.table-scroll th:first-child{text-align:left;width:72px}.table-scroll td{border-bottom:1px solid #eeece6;text-align:right;padding:0;height:40px;font:12px var(--mono);color:#3d4654}.table-scroll td:first-child{text-align:left;padding:0 14px;color:#7e8792;font-size:11px;background:#faf9f5;position:sticky;left:0;z-index:1}.table-scroll tbody tr:hover td:first-child{color:var(--accent)}.count-cell{display:block;margin:3px 5px;padding:8px 9px;border:1px solid transparent;background:color-mix(in srgb,var(--accent) var(--fill),#fffdf9);color:#273244;cursor:pointer;font:12px var(--mono);text-align:right;width:calc(100% - 10px);transition:border-color .2s,background .2s}.count-cell:hover,.count-cell.selected{border-color:var(--accent);background:color-mix(in srgb,var(--gold) 34%,#fffdf9)}.missing{display:block;margin:4px 14px;color:#b7bbc0}.table-footer{display:flex;justify-content:space-between;gap:12px;padding:13px 19px;color:#8a929e;font:10px var(--mono);letter-spacing:.02em}.key-swatch{display:inline-block;height:10px;width:10px;background:#ead6bc;vertical-align:-1px}
.detail-panel{background:var(--navy-2);color:#f1e9d8;padding:22px;min-height:340px;border-top:3px solid var(--gold);position:sticky;top:12px;box-shadow:0 16px 35px #17213a19}.detail-kicker{font:10px var(--mono);color:var(--gold);letter-spacing:.1em}.detail-number{font:normal 60px/.9 var(--serif);margin:24px 0 8px;color:#fff8e8;letter-spacing:-.03em}.detail-label{font-size:13px;color:#aeb8c8;margin-bottom:29px}.detail-rule{height:1px;background:#435069;margin:16px 0}.detail-row{display:flex;justify-content:space-between;align-items:baseline;gap:12px;font-size:11px;margin:12px 0}.detail-row span{color:#b1bbca}.detail-row strong{font:11px var(--mono);color:#e8d7b7;font-weight:500;text-align:right;max-width:58%;overflow-wrap:anywhere}.detail-value-link{font:11px var(--mono);color:var(--gold);border-bottom:1px solid #a78f74;padding-bottom:2px;text-align:right}.detail-value-link:hover{color:#fff}.detail-note{font:11px/1.55 var(--sans);color:#abb6c7;margin:17px 0 0}.detail-link{font:11px var(--mono);color:var(--gold);display:inline-block;margin-top:18px;border-bottom:1px solid #ac936f;padding-bottom:4px}.trend-block{border-top:1px solid #435069;padding-top:16px;margin-top:17px}.trend-block svg{width:100%;height:74px;display:block;margin-top:5px}.trend-labels{display:flex;justify-content:space-between;font:9px var(--mono);color:#8794a6}.scope-note{font-size:11px;color:#79828c;line-height:1.6;margin:15px 0 0}
.classification-section{border-top:1px solid var(--line);background:#f1eee7}.scope-cards{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:9px}.scope-card{background:var(--white);border:1px solid #dedbd1;padding:18px 17px 16px;min-width:0;position:relative;overflow:hidden}.scope-card:after{content:'';position:absolute;bottom:0;left:0;width:30%;height:2px;background:var(--accent)}.scope-index{font:9px var(--mono);color:#9b957f;letter-spacing:.12em}.scope-rank{font:normal 38px/.95 var(--serif);margin:16px 0 10px}.scope-limit{font:11px var(--mono);color:var(--accent);min-height:25px}.scope-description{font-size:11px;color:#687182;line-height:1.55;margin:11px 0 0;min-height:35px}.scope-card strong{color:var(--ink);font-weight:600}.definition-strip{display:flex;align-items:center;gap:16px;margin-top:14px;padding:14px 20px;background:#e7e1d6;color:#626b78}.definition-strip p{margin:0;font-size:11px;line-height:1.5}.definition-strip strong{color:#283144}.definition-mark{font:23px var(--serif);color:var(--accent)}
.papers-section{background:var(--paper)}.paper-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}.paper-card{min-height:185px;border:1px solid var(--line);background:var(--white);display:flex;flex-direction:column;justify-content:space-between;padding:19px 20px;transition:transform .2s,box-shadow .2s}.paper-card:hover{transform:translateY(-2px);box-shadow:0 14px 24px #17213a0c}.paper-meta{display:flex;justify-content:space-between;color:#929aa5;font:9px var(--mono);letter-spacing:.1em}.paper-card h3{font:normal 27px/1.03 var(--serif);letter-spacing:-.01em;margin:23px 0 5px}.paper-card h3.long-title{font-size:23px;line-height:1.08}.paper-card p{font-size:11px;color:#657084;line-height:1.5;margin:0 0 20px}.paper-actions{display:flex;gap:18px;flex-wrap:wrap}.paper-actions a{font:10px var(--mono);color:#98653e;padding-bottom:4px;border-bottom:1px solid #be9b76}.paper-actions a:hover{color:var(--ink)}
.sources-section{background:var(--navy);color:#ede6d5}.sources-section .section-heading h2{color:#f1e8d7}.sources-section .eyebrow{color:var(--gold)}.source-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}.source-item{border-top:1px solid #4d5260;padding-top:20px;display:flex;gap:18px}.source-index{font:10px var(--mono);color:var(--gold);padding-top:3px}.source-item h3{font:normal 25px var(--serif);margin:0 0 8px}.source-item p{color:#aeb7c5;font-size:11px;line-height:1.6;max-width:310px;min-height:54px}.source-item a{font:10px var(--mono);color:var(--gold);display:inline-block;margin:5px 15px 0 0;border-bottom:1px solid #a78f74;padding-bottom:3px}.source-item a:hover{color:#fff}
.site-footer{padding:22px clamp(22px,4.5vw,86px);background:#090e1b;color:#848fa2;display:flex;justify-content:space-between;gap:20px;font:10px var(--mono)}.site-footer span:first-child{color:var(--gold);letter-spacing:.1em}.site-footer a:hover{color:#fff}
@media(max-width:1050px){.edition{display:none}.intro-math{min-width:245px}.scope-cards{grid-template-columns:repeat(3,1fr)}.paper-grid{grid-template-columns:repeat(2,1fr)}}@media(max-width:800px){.site-header{height:auto;min-height:70px;flex-wrap:wrap;padding-block:13px;gap:13px}.top-nav{order:3;width:100%;gap:24px;margin:0;height:28px}.intro-grid{align-items:start}.intro-math{display:none}.workspace-grid{grid-template-columns:1fr}.detail-panel{position:static;min-height:auto}.paper-grid,.source-grid{grid-template-columns:repeat(2,1fr)}}@media(max-width:570px){.intro{padding-top:29px;padding-bottom:32px}h1{font-size:51px}.intro-text{font-size:12px}.section-heading{align-items:start}.section-aside{display:none}.control-bar{gap:12px;padding:12px}.search-wrap{margin-left:0}.table-scroll{max-height:430px}.scope-cards{grid-template-columns:repeat(2,1fr)}.paper-grid,.source-grid{grid-template-columns:1fr}.table-footer span:nth-child(2){display:none}.site-footer{flex-wrap:wrap}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{transition-duration:0s!important}}
.count-cell.complete_classification{box-shadow:inset 2px 0 #6aa492}.count-cell.partial_classification{box-shadow:inset 2px 0 #d4a25d}.count-cell.census_only{box-shadow:inset 2px 0 #b9bdc3}
.scope-extra{font:10px/1.4 var(--mono);color:#a3734e;border-top:1px solid #e7e2da;padding-top:9px;margin:10px 0 0}
@media(max-width:570px){h1{font-size:47px}.control-bar .control-group:first-child{width:100%}.rank-filters{flex-wrap:nowrap;gap:2px}.rank-btn{padding-inline:5px;min-width:28px;font-size:10px}.control-bar{column-gap:10px}}

/* The model catalogue is a working surface: compact, exact-data first. */
.rings-section{padding-top:36px;padding-bottom:60px;border-top:1px solid var(--line);background:#eeeae1;scroll-margin-top:10px}
.kind-switch{display:flex;background:#eeeae3;border-bottom:1px solid #d8d4cb;gap:1px;padding:9px 12px 0;overflow:auto}
.kind-switch button{flex:1;min-width:165px;display:flex;justify-content:center;align-items:baseline;gap:10px;padding:12px 8px 13px;border:1px solid transparent;border-bottom:0;background:transparent;color:#566276;font:600 14px var(--sans);cursor:pointer;white-space:nowrap}
.kind-switch button small{font:10px var(--mono);letter-spacing:.05em;color:#7c8898}
.kind-switch button[aria-pressed=true]{border-color:#d7d2c8;background:var(--white);color:#7a502e}
.kind-switch button[aria-pressed=true] small{color:#9a6d47}
.brand-symbol{font-size:16px;letter-spacing:-.08em}.brand-symbol span{transform:translateX(-1px)}
.status-legend{display:flex;flex-wrap:wrap;gap:8px 18px;padding:11px 18px;border-top:1px solid #e2ded6;background:#faf9f6;color:#526072;font:12px/1.5 var(--sans)}
.status-legend span{display:inline-flex;align-items:center;gap:6px}
.status-legend i{display:inline-block;width:10px;height:10px;border-radius:50%;flex:none}
.legend-realized{background:#62a790}.legend-excluded{background:#7e8797}.legend-open{background:#d5a052}
.detail-row.realized strong{color:#9fd1bf}.detail-row.excluded strong{color:#c2c8d2}.detail-row.open strong{color:#eac589}
.virtual-spacer td,.table-scroll .virtual-spacer td:first-child{position:static;padding:0;border:0;background:transparent;height:auto}
.table-scroll tbody tr:not(.virtual-spacer),.table-scroll tbody tr:not(.virtual-spacer)>td{height:40px}
.count-cell{height:32px;padding:0 9px;line-height:30px}
.catalogue-controls{display:flex;align-items:center;gap:16px;flex-wrap:wrap;background:#fffdf9;border:1px solid var(--line);padding:13px 16px;margin-bottom:14px}
.catalogue-controls>span{font:14px/1.4 var(--sans);font-weight:600;margin-right:auto}
.catalogue-search input{font:14px var(--sans);padding:10px 12px;min-width:210px;border:1px solid #c9c6bd;background:#faf9f5;color:var(--ink)}
.catalogue-controls button{font:13px var(--mono);border:1px solid #a4744b;background:#fffdf9;color:#774d2c;padding:10px 12px;cursor:pointer}
.catalogue-controls button:hover,.catalogue-controls button[aria-pressed=true]{background:#decdb6;color:#252a39}
.ring-cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}
.ring-card{display:flex;flex-direction:column;align-items:start;min-width:0;min-height:180px;padding:18px;background:#fffdf9;border:1px solid #d5d0c4;border-top:3px solid #ad8551;transition:transform .15s,box-shadow .15s}
.ring-card:hover{transform:translateY(-2px);box-shadow:0 12px 24px #24293b15}
.ring-card-meta{font:12px/1.35 var(--mono);letter-spacing:.04em;color:#836642;overflow-wrap:anywhere}
.ring-card h3{font:normal 25px/1.1 var(--serif);margin:12px 0 16px;overflow-wrap:anywhere}
.ring-card-facts{display:flex;gap:7px;flex-wrap:wrap;margin-top:auto;margin-bottom:18px}
.ring-card-facts span{font:12px/1.35 var(--mono);color:#526174;background:#f0eee8;border:1px solid #e4dfd4;padding:5px 7px}
.open-ring{font:14px var(--sans);font-weight:600;border:0;border-bottom:1px solid var(--accent);padding:0 0 4px;background:transparent;color:#84502e;cursor:pointer}
.open-ring:hover{color:var(--navy)}
.catalogue-empty{grid-column:1/-1;padding:22px;background:#fffdf9;border:1px solid var(--line);color:#536175;font-size:15px;line-height:1.5}
.scope-note a{color:#775236;border-bottom:1px solid #b69c7a}

.ring-dialog{position:fixed;inset:auto;max-width:min(950px,calc(100vw - 28px));width:950px;max-height:min(90vh,1100px);padding:0;border:1px solid #a3a4ab;background:#fcfbf7;color:var(--ink);box-shadow:0 30px 90px #050b1bb0;overflow:auto}
.ring-dialog::backdrop{background:#080d1dc9;backdrop-filter:blur(4px)}
.ring-dialog>.profile-bar,.ring-dialog>h2,.ring-dialog>.ring-facts,.ring-dialog>.profile-tabs,.ring-dialog>.ring-profile{margin-inline:clamp(17px,4vw,38px)}
.profile-bar{display:flex;align-items:center;justify-content:space-between;gap:14px;border-bottom:1px solid #d9d8d1;padding:16px 0;color:#9b673b;font:13px var(--mono);letter-spacing:.02em}
.profile-bar button{font:30px/1 var(--sans);color:#2d3340;background:transparent;border:0;padding:0 8px;cursor:pointer}
.ring-dialog h2{font:normal clamp(32px,4vw,52px)/1.07 var(--serif);padding-top:22px;margin-bottom:18px;overflow-wrap:anywhere}
.ring-facts{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:18px}
.profile-fact{min-width:0;display:inline-flex;flex-direction:column;gap:6px;padding:9px 12px;background:#f1efe8;border:1px solid #e1ddd2;overflow-wrap:anywhere}
.profile-fact small{font:12px/1.35 var(--mono);letter-spacing:.04em;text-transform:uppercase;color:#737c89}
.profile-fact strong{font:14px/1.45 var(--mono);font-weight:500;color:#263044;overflow-wrap:anywhere}
.profile-tabs{display:flex;gap:8px;border-bottom:1px solid #d6d2c8;overflow:auto}
.profile-tabs button{flex:none;font:14px var(--sans);border:0;border-bottom:2px solid transparent;background:transparent;color:#647082;padding:12px 15px;cursor:pointer}
.profile-tabs button:hover,.profile-tabs button[aria-selected=true]{color:#7d512e;border-color:#ab7649}
.ring-profile{padding-top:18px;padding-bottom:36px;min-height:280px}
.profile-note{font:14px/1.55 var(--sans);color:#566174;margin:10px 0 17px;overflow-wrap:anywhere}
.matrix-selector{display:flex;flex-wrap:wrap;gap:5px;margin:14px 0}
.matrix-btn{font:14px var(--mono);background:#f3f0e8;color:#3c4656;border:1px solid #dad6cb;padding:9px 12px;min-width:43px;cursor:pointer}
.matrix-btn.active{background:var(--navy);color:var(--gold)}
.profile-table-scroll{width:100%;max-width:100%;overflow:auto;border:1px solid #d7d4cc;margin:12px 0 20px}
.profile-table{border-collapse:collapse;min-width:100%;font:14px/1.4 var(--mono);text-align:right;background:white}
.profile-table th,.profile-table td{padding:10px 12px;border:1px solid #e2dfd8;white-space:nowrap}
.profile-table th{background:#f0eee7;font-weight:600;color:#3e4b5a}
.profile-table tbody tr:nth-child(2n){background:#faf9f5}
.char-table{font-size:12px}
.invariant-grid{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:12px}
.exact-presentation{padding:14px;margin:18px 0;border-left:3px solid #bd8750;background:#f5f1e9}
.exact-presentation summary{font:600 15px var(--sans);cursor:pointer;color:#654122}
.exact-presentation .profile-fact{display:flex;margin:7px 0;background:#fffdf8}
.profile-link{display:inline-block;margin:12px 18px 8px 0;border-bottom:1px solid #ac875d;color:#805631;font:14px var(--sans);overflow-wrap:anywhere}
.profile-link:hover{color:#172036}
.profile-citation{font:16px/1.6 var(--serif);color:#283347;background:#f3f0e9;padding:18px;border-left:3px solid #bd8750;margin:17px 0;overflow-wrap:anywhere}
.download-tensor{font:13px var(--mono);border:1px solid #916f4f;background:#eee4d5;color:#513d2b;padding:10px 14px;cursor:pointer}
.download-tensor:hover{background:#dfcfb7}
.unresolved-count-link{color:inherit;text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:3px}
.unresolved-count-link:hover{text-decoration-thickness:2px}
.unresolved-count-link:focus-visible,.ring-tensor-download:focus-visible{outline:2px solid currentColor;outline-offset:4px}
.detail-row.open .unresolved-count-link{color:#eac589;font-weight:700}
.ring-card-actions,.tensor-download-actions{display:flex;align-items:center;flex-wrap:wrap;gap:12px;margin-top:14px}
.ring-card-actions .open-ring{margin-top:0}
.ring-tensor-download{font:12px/1.5 var(--mono);color:#805631;text-decoration:underline;text-underline-offset:3px}
.tensor-download-actions .download-tensor{display:inline-block;text-decoration:none}
.scope-cards{grid-template-columns:repeat(auto-fit,minmax(190px,1fr))}
.scope-card .scope-description{font-size:14px}
.scope-card .scope-extra{font-size:12px}
.intro-text,.scope-note,.definition-strip p,.source-item p,.paper-card p{font-size:14px}
.section-heading .eyebrow,.section-aside,.control-label{font-size:12px}
.table-scroll td,.count-cell{font-size:14px}
.detail-row,.detail-row strong,.detail-note,.detail-link{font-size:13px}
@media(max-width:1000px){.ring-cards{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:640px){.ring-cards{grid-template-columns:1fr}.catalogue-controls{align-items:stretch}.catalogue-controls>span{width:100%}.catalogue-search,.catalogue-search input{width:100%}.site-header{gap:9px}.top-nav{overflow:auto;white-space:nowrap;gap:15px}.ring-dialog{max-width:calc(100vw - 12px);max-height:calc(100vh - 12px)}.profile-bar{font-size:12px}.profile-table{font-size:12px}.profile-tabs button{font-size:13px;padding-inline:9px}}
@media(max-width:400px){.scope-cards{grid-template-columns:1fr}.brand-name{font-size:10px;letter-spacing:.09em}.brand-sub{font-size:8px}}
.alternative-model{border-left:2px solid #bba37e;background:#f5f2eb;margin:15px 0;padding:12px 14px}
.alternative-model>strong{font:600 14px/1.4 var(--sans);color:#263044}
.alternative-model .profile-note{margin:6px 0 10px}
 .frontier-panel{margin:0 0 28px;padding:18px 20px;border:1px solid var(--line,#d8d4cb);border-radius:8px;background:var(--paper,#faf8f2)}
 .frontier-panel summary{cursor:pointer;font-weight:600}
 .frontier-panel p{line-height:1.6;color:var(--muted,#686867)}
 .frontier-table{width:100%;margin:12px 0}
 .frontier-panel .frontier-table td{white-space:normal;text-align:left;line-height:1.6;min-width:260px}
 .frontier-panel .frontier-table th{white-space:nowrap;text-align:left}

/* Dated research updates keep classifications and scoped progress distinct. */
.research-update{display:flex;align-items:center;justify-content:space-between;gap:24px;padding:19px 22px;margin:0 0 18px;border:1px solid #c8b695;border-left:4px solid var(--accent);background:#eee7d9}
.research-update[hidden],.theoretical-update[hidden]{display:none}
.research-update .eyebrow{margin-bottom:8px;font-size:11px}
.research-update h3{font:normal clamp(23px,2vw,30px)/1.15 var(--serif);margin-bottom:8px}
.research-update p:last-child{font:14px/1.55 var(--sans);color:var(--ink-soft);max-width:850px;margin-bottom:0}
.research-update>a{flex:none;font:600 13px/1.4 var(--sans);border-bottom:1px solid #ab8256;padding-bottom:4px;color:#704725}
.update-actions{display:flex;flex-wrap:wrap;gap:12px 22px;margin:14px 0 18px}
.update-actions a,.theoretical-update td a{font:13px/1.5 var(--sans);color:#775236;border-bottom:1px solid #b69c7a}
.download-checksum{font:11px/1.6 var(--mono);overflow-wrap:anywhere;margin-bottom:0}
.download-checksum code{font:inherit}
@media(max-width:640px){.research-update{align-items:flex-start;flex-direction:column;gap:16px;padding:16px}.theoretical-update{padding:15px}.update-actions{gap:12px 16px}}

/* Public reading edition: clear provenance, comfortable measure and visible focus. */
body{line-height:1.5}
:focus-visible{outline:3px solid var(--accent);outline-offset:4px}
::selection{background:#eac589;color:#0d1325}
main>section,.research-notice,.site-header,.site-footer{padding-inline:max(clamp(22px,4.5vw,86px),calc((100vw - 1440px)/2))}
.intro{padding-top:44px;padding-bottom:38px}
.intro-text{font-size:16px;line-height:1.65;max-width:59ch;color:#c0c6d1}
.intro-actions{display:flex;align-items:center;gap:14px 24px;flex-wrap:wrap;margin-top:26px}
.intro-actions a{display:inline-flex;align-items:center;gap:12px;min-height:44px;color:var(--gold);font-size:13px;font-weight:600;border-bottom:1px solid #786e5b}
.intro-actions a:hover{color:#fff3dc;border-color:#fff3dc}
.intro-actions .intro-primary{padding:10px 16px;background:var(--gold);color:var(--navy);border:1px solid var(--gold);border-radius:3px}
.intro-actions .intro-primary:hover{background:#f6d9aa;color:var(--navy);border-color:#f6d9aa}
.intro-actions a:focus-visible,.site-header a:focus-visible,.sources-section a:focus-visible,.site-footer a:focus-visible{outline-color:var(--gold)}
.research-notice{display:grid;grid-template-columns:190px minmax(0,1fr);gap:28px;padding-block:25px;background:#eee7d9;border-bottom:1px solid #d9ccb7;scroll-margin-top:18px}
.notice-label{position:relative;padding-left:30px}
.notice-mark{position:absolute;left:0;top:1px;display:grid;place-items:center;width:19px;height:19px;border:1px solid #8e6c40;border-radius:50%;color:#6b4928;font:italic 15px/1 var(--serif)}
.notice-label h2{font:600 14px/1.4 var(--sans);margin:0 0 5px;color:#523b24}
.notice-label>span:last-child{display:block;max-width:19ch;font:11px/1.6 var(--mono);color:#77644d}
.notice-copy{max-width:1030px}
.notice-copy p{font-size:14px;line-height:1.7;color:#514b43;margin:0 0 8px}
.notice-copy p:last-of-type{font-size:13px;color:#665d50}
.notice-copy strong{font-weight:650;color:#372d21}
.notice-copy a,.paper-review-note a{display:inline-block;font-size:13px;font-weight:600;color:#674422;border-bottom:1px solid #a27c4f;padding-block:3px}
.notice-copy a:hover,.paper-review-note a:hover{color:#2b251e;border-color:#2b251e}
.section-heading h2{line-height:1.12}
.eyebrow{color:#86562e}
.control-label,.rank-btn{color:#657083}
.table-footer{color:#647081}
.scope-extra{color:#805a3c}
.search-wrap:focus-within{outline:3px solid var(--accent);outline-offset:3px}
.scope-note{max-width:112ch;line-height:1.75;color:#626e7c}
.definition-strip p,.paper-card p,.source-item p{line-height:1.7}
.top-nav a{font-size:13px;color:#c2c8d2}
.section-aside{color:#6c7682;font-size:10px;line-height:1.5;text-align:right}
.paper-card{padding:22px 23px}
.paper-card h3{line-height:1.14}
.paper-meta,.paper-actions a,.source-item a{font-size:11px;line-height:1.6}
.paper-actions a,.source-item a{padding-top:6px}
.paper-meta{color:#667283}
.source-item p{max-width:43ch}
.static-note,.paper-review-note{padding:17px 20px;margin:0 0 24px;background:#f0e9dc;border:1px solid #d9c9af;border-left:3px solid #a57843;font-size:14px;line-height:1.7;color:#5b5042}
.static-note a{color:#674422;text-decoration:underline;text-underline-offset:3px}
.paper-review-note{display:flex;align-items:center;justify-content:space-between;gap:24px}
.paper-review-note p{margin:0;max-width:80ch}
.paper-review-note a{flex:none}
.site-footer{display:block;line-height:1.7}
.footer-main{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:12px 24px}
.footer-main .footer-brand{color:var(--gold);letter-spacing:.1em}
.site-footer #snapshot-date{color:#a8b2c4;letter-spacing:0}
.site-footer a{color:#bec5d2}
.footer-caution{border-top:1px solid #293041;margin:18px 0 0;padding-top:16px;color:#a8b2c4;font:12px/1.8 var(--sans)}
.footer-caution a{color:#dfc397;text-decoration:underline;text-underline-offset:3px}
@media(max-width:1050px){.research-notice{grid-template-columns:170px minmax(0,1fr);gap:22px}.paper-review-note{align-items:flex-start;flex-direction:column;gap:8px}}
@media(max-width:640px){.intro{padding-block:30px}.intro-text{font-size:15px}.intro-actions{gap:10px 20px;margin-top:22px}.research-notice{grid-template-columns:1fr;gap:12px;padding-block:21px}.notice-label{display:flex;align-items:baseline;gap:7px 14px;flex-wrap:wrap}.notice-label h2{margin:0}.notice-label>span:last-child{max-width:none;font-size:10px}.notice-copy p{font-size:13px}.notice-copy p:last-of-type{font-size:12px}.footer-main{align-items:flex-start}.footer-main .footer-brand{width:100%}.paper-card{padding:20px}.paper-review-note{padding:15px 17px}}

/* Emphasize Grothendieck-ring classification with a responsive research heading. */
.intro-grid>div:first-child{min-width:0;flex:1}
.intro-math{flex:none}
.intro h1{font-size:clamp(34px,5.1vw,76px);line-height:1.04;text-wrap:balance}
.intro-subtitle{font:normal clamp(20px,2vw,27px)/1.3 var(--serif);color:var(--gold);margin:0 0 14px}
.intro-resource{font-size:13px;line-height:1.6;color:#c0c6d1;margin:12px 0 0}
.intro-resource a{color:var(--gold);text-decoration:underline;text-underline-offset:3px}
.intro-resource a:hover{color:#fff3dc}
@media(max-width:1050px){.intro-math{display:none}}


/* Reading controls keep the entry points brief and full explanations close. */
.research-notice.research-notice-compact{display:flex;align-items:center;justify-content:space-between;gap:12px 24px;padding-block:13px}
.research-notice-compact p{margin:0;font-size:13px;line-height:1.6;color:#514532}
.reading-link{border:0;border-bottom:1px solid #aa8a62;padding:4px 0;background:none;color:#77502e;font:600 13px/1.5 var(--sans);cursor:pointer;text-align:left}
.reading-link:hover{color:var(--navy);border-color:var(--navy)}
.atlas-reading-actions{display:flex;align-items:center;justify-content:space-between;gap:14px 24px;flex-wrap:wrap;margin-bottom:18px;color:#77502e;font:600 13px/1.5 var(--sans)}
.atlas-reading-actions a{border-bottom:1px solid #aa8a62;padding:4px 0}
.reading-panel{margin:22px 0 0;padding:0 20px;border:1px solid var(--line);background:var(--white);border-radius:5px}
.reading-panel>summary{padding:16px 0;cursor:pointer;font:600 14px/1.6 var(--sans);color:#594632}
.reading-panel[open]>summary{border-bottom:1px solid var(--line);margin-bottom:18px}
.reading-panel>.scope-note{margin-block:16px}
.paper-reading-notes{margin-top:26px;padding-bottom:0}
.paper-reading-notes[open]{padding-bottom:18px}
.paper-reading-notes .frontier-panel{background:var(--paper)}
.reading-dialog{width:760px;max-width:calc(100vw - 32px);max-height:85vh;padding:0;border:1px solid #c5b99f;border-radius:8px;background:var(--white);color:var(--ink);box-shadow:0 28px 100px #0d132550}
.reading-dialog::backdrop{background:#0d1325aa;backdrop-filter:blur(3px)}
.reading-dialog-bar{position:sticky;z-index:1;top:0;display:flex;align-items:center;justify-content:space-between;gap:20px;margin:0;padding:12px 22px;background:var(--white);border-bottom:1px solid var(--line);font:600 13px var(--sans)}
.reading-close{width:40px;height:40px;border:1px solid var(--line);border-radius:50%;background:transparent;color:var(--ink);font:24px/1 var(--sans);cursor:pointer}
.reading-close:hover{background:var(--paper)}
.reading-dialog .research-notice{display:block;padding:26px!important;border:0;background:transparent}
.reading-dialog .notice-label{margin-bottom:22px}.reading-dialog .notice-label>span:last-child{max-width:none}
.reading-dialog .research-update{display:block;padding:26px;margin:0;border:0;background:transparent}
.reading-dialog .research-update h3{margin-block:12px 18px;font-size:28px;line-height:1.3}
.reading-dialog .research-update>a{display:inline-block;margin-top:20px}
.reading-dialog-follow{margin:0;padding:0 26px 26px;font-size:14px;color:#77502e}
.reading-dialog-follow a{border-bottom:1px solid #aa8a62}
.review-details{padding:0 20px;margin:16px 0;border:1px solid #3b465c;border-radius:6px;background:#141e31}
.review-details>summary{padding:17px 0;color:#f0d7b0;font:600 15px/1.6 var(--sans);cursor:pointer}
.review-details[open]>summary{border-bottom:1px solid #3b465c;margin-bottom:20px}
.review-details h2:first-of-type,.review-details h3:first-of-type{margin-top:24px}
.review-details>p:last-child{margin-bottom:22px}
.review-panel .review-details{margin-bottom:0;background:transparent}
@media(max-width:640px){.research-notice.research-notice-compact{align-items:flex-start;flex-direction:column;gap:6px}.reading-panel{padding-inline:15px}.reading-dialog{max-width:calc(100vw - 20px)}.reading-dialog .research-update,.reading-dialog .research-notice{padding:20px!important}.review-details{padding-inline:15px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}

/* Shared structural filters and the mathematical reading page. */
.property-panel{margin:1rem 0;border:1px solid var(--line,#d5dbe2);border-radius:8px;background:var(--paper,#fff);padding:.85rem 1rem;color:var(--ink,#172434)}
.property-panel>summary{cursor:pointer;font-weight:600;list-style-position:inside;font-size:.9rem}
.property-note{font-size:.83rem;line-height:1.65;max-width:75ch;margin:.8rem 0;color:var(--muted,#536473)}
.property-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:.8rem 1.1rem;margin:1rem 0}
.property-grid label{display:block;font-size:.75rem;letter-spacing:.035em;margin-bottom:.35rem}
.property-grid select{width:100%;min-height:38px;border:1px solid #c6cdd5;border-radius:4px;background:#fff;color:#172434;padding:.4rem .6rem;font:inherit;font-size:.85rem}
.property-grid select:focus-visible,.property-panel summary:focus-visible{outline:2px solid #9d6b27;outline-offset:3px}
.property-reset{border:0;background:transparent;color:#79551f;text-decoration:underline;font:inherit;font-size:.82rem;cursor:pointer;padding:.3rem 0}
.theory-layout{max-width:1180px;margin:auto;padding:3rem 5vw 5rem;display:grid;grid-template-columns:220px minmax(0,1fr);gap:3.5rem}
.theory-toc{align-self:start;position:sticky;top:2rem;font-size:.85rem;line-height:1.7}
.theory-toc a{display:block;padding:.4rem 0}.theory-article{max-width:78ch;line-height:1.85;color:#263648}
.theory-article h2{font-family:Georgia,serif;font-size:1.9rem;line-height:1.25;margin:2.6rem 0 1rem;color:#142538;scroll-margin-top:2rem}
.theory-article h3{font-size:1.05rem;margin:1.4rem 0 .45rem}.theory-article p{margin:.8rem 0}.theory-article li{margin:.6rem 0}
.theory-formula{background:#f3f4f0;border-left:3px solid #ad8140;padding:1rem 1.25rem;margin:1.2rem 0;overflow-x:auto;text-align:center;font-family:Georgia,serif;font-size:1.05rem}
.theory-table-wrap{overflow-x:auto}.theory-table{width:100%;border-collapse:collapse;font-size:.9rem;line-height:1.65}.theory-table th,.theory-table td{text-align:left;vertical-align:top;padding:.8rem;border-bottom:1px solid #dbe1e6}.theory-table th{background:#f3f4f0;color:#142538}
.theory-note{border-left:3px solid #ad8140;background:#f7f5ef;padding:.6rem 1.1rem;margin:1.3rem 0}.theory-ref{font-size:.78em;vertical-align:super}.theory-references{font-size:.88rem;line-height:1.8}
@media(max-width:800px){.property-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.theory-layout{grid-template-columns:1fr;gap:1.2rem;padding-top:1.5rem}.theory-toc{position:static;display:flex;gap:.4rem 1rem;flex-wrap:wrap;border-bottom:1px solid #dbe1e6;padding-bottom:1rem}.theory-toc a{padding:.15rem 0}.theory-article h2{font-size:1.65rem}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
.top-nav{min-width:0;flex-wrap:wrap;align-content:center;column-gap:20px;row-gap:0}.top-nav a{white-space:nowrap;padding-block:10px}
@media(max-width:1250px){.edition{display:none}}
@media(max-width:800px){.top-nav{height:auto;gap:3px 20px;min-height:28px}}

/* Project citation: readable text and wrapping BibTeX at every screen width. */
.citation-panel{margin:24px 0;padding:22px clamp(17px,3vw,28px);border:1px solid var(--line);background:var(--white);min-width:0;scroll-margin-top:24px}
.citation-panel h3{font:normal 28px/1.2 var(--serif);margin:0 0 14px}
.citation-panel p{max-width:86ch;font-size:14px;line-height:1.7;margin:0 0 12px}
.citation-panel .citation-text{padding-left:16px;border-left:3px solid #a57843;color:var(--ink)}
.citation-panel a{color:#674422;text-decoration:underline;text-underline-offset:3px;overflow-wrap:anywhere}
.citation-actions{display:flex;flex-wrap:wrap;gap:10px 24px;margin:16px 0;font-size:13px}
.citation-panel summary{cursor:pointer;font-size:13px;font-weight:600;padding:7px 0}
.citation-panel pre{margin:8px 0 0;padding:16px;background:#f4f1ea;white-space:pre-wrap;overflow-wrap:anywhere;word-break:break-word;font:12px/1.65 var(--mono)}