/* Model Benchmark Atlas. Colours come from the site shell tokens so the page follows the light/dark toggle. */
:root{
  --mba-paper:var(--ig-paper,light-dark(#faf8f4,#12100e));
  --mba-panel:var(--ig-panel,light-dark(#f3f0e9,#191714));
  --mba-ink:var(--ig-ink,light-dark(#1b1917,#ece7df));
  --mba-muted:var(--ig-muted,light-dark(#5d574f,#b1a89b));
  --mba-rule:var(--ig-rule,light-dark(#ded7cc,#3c352e));
  --mba-accent:var(--ig-accent,light-dark(#8a4b26,#dda477));
  --mba-serif:var(--ig-serif,Georgia,serif);
  --mba-sans:var(--ig-sans,system-ui,sans-serif);
  --mba-grid:color-mix(in oklab,var(--mba-rule) 70%,transparent);
  --mba-band:color-mix(in oklab,var(--mba-accent) 9%,transparent);
  --mba-lift:light-dark(#fffdf9,#1d1a17);
  /* Series: Okabe-Ito derived, checked for colour-vision separation on both surfaces. */
  --mba-astra:light-dark(#1f6fb2,#4a94d4);
  --mba-fable:light-dark(#c2571a,#d0702f);
  --mba-opus:light-dark(#00896a,#1fa47c);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;color:var(--mba-ink)}
a{color:inherit;text-underline-offset:.22em;text-decoration-thickness:1px}
a:hover{color:var(--mba-accent)}
button,select,input{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--mba-accent);outline-offset:3px}

.atlas{width:min(1180px,100% - var(--ig-gutter,36px)*2);margin:0 auto;padding-bottom:48px}
.eyebrow{font:600 11px/1.4 var(--mba-sans);text-transform:uppercase;letter-spacing:.14em;color:var(--mba-muted);margin:0 0 .7rem}
.atlas h1,.atlas h2,.atlas h3{font-family:var(--mba-serif);font-weight:400;line-height:1.15;letter-spacing:-.015em}
.atlas h1{font-size:clamp(2.2rem,5.4vw,4rem);margin:.2rem 0 1rem}
.atlas h2{font-size:clamp(1.7rem,3.2vw,2.5rem);margin:0 0 1rem}
.atlas h3{font-size:1.35rem;margin:0 0 .6rem}
.atlas h4{font:600 12px/1.4 var(--mba-sans);letter-spacing:.1em;text-transform:uppercase;color:var(--mba-muted);margin:0 0 12px}
p{margin:.5rem 0 1rem}
.muted,small{color:var(--mba-muted)}
small{font:13px/1.6 var(--mba-sans)}
.intro{padding:28px 0 26px;display:grid;gap:4px}
.intro .dek{font-size:clamp(1.1rem,1.8vw,1.3rem);line-height:1.55;max-width:760px;margin:0}
.intro .byline{font:13px/1.6 var(--mba-sans);color:var(--mba-muted);margin:14px 0 0}
.subnav{display:flex;gap:4px 26px;flex-wrap:wrap;border-block:1px solid var(--mba-rule);padding:12px 0;font:14px/1.5 var(--mba-sans)}
.subnav a{text-decoration:none;color:var(--mba-muted)}
.subnav a:hover{color:var(--mba-accent)}
.section{padding:48px 0;border-bottom:1px solid var(--mba-rule)}
.section-head{max-width:820px;margin-bottom:26px}
.section-head p{margin:0;color:var(--mba-muted);font-size:1.02rem}
.plot-note{font:13px/1.6 var(--mba-sans);color:var(--mba-muted);margin:.6rem 0 0}

/* Toolbar */
.toolbar{display:grid;grid-template-columns:minmax(220px,300px) minmax(0,1fr) auto;gap:18px 28px;align-items:end;padding:18px 0 20px;border-top:2px solid var(--mba-ink);border-bottom:1px solid var(--mba-rule)}
.field-label{display:block;font:600 11px/1.4 var(--mba-sans);letter-spacing:.12em;text-transform:uppercase;color:var(--mba-muted);margin:0 0 8px;padding:0}
.select-wrap{position:relative}
.select-wrap::after{content:"";position:absolute;right:14px;top:50%;width:7px;height:7px;border-right:1.5px solid var(--mba-muted);border-bottom:1.5px solid var(--mba-muted);transform:translateY(-70%) rotate(45deg);pointer-events:none}
.select-wrap select{appearance:none;-webkit-appearance:none;width:100%;min-height:44px;padding:9px 38px 9px 13px;border:1px solid var(--mba-rule);border-radius:6px;background:var(--mba-lift);font:500 15px/1.3 var(--mba-sans);cursor:pointer}
.select-wrap select:hover{border-color:var(--mba-muted)}
.select-wrap select option,.select-wrap select optgroup{background:var(--mba-paper);color:var(--mba-ink)}
fieldset{border:0;margin:0;padding:0;min-width:0}
.seg{display:flex;border:1px solid var(--mba-rule);border-radius:6px;background:var(--mba-lift);padding:3px;gap:2px;min-width:0}
.seg label{flex:1 1 0;min-width:0;position:relative;cursor:pointer}
.seg input{position:absolute;opacity:0;inset:0;margin:0;cursor:pointer}
.seg span{display:flex;align-items:center;justify-content:center;min-height:36px;padding:0 6px;border-radius:4px;font:500 14px/1.1 var(--mba-sans);color:var(--mba-muted);white-space:nowrap;transition:background-color .15s,color .15s}
.seg label:hover span{color:var(--mba-ink);background:var(--mba-panel)}
.seg input:checked+span{background:var(--mba-ink);color:var(--mba-paper)}
.seg input:focus-visible+span{outline:2px solid var(--mba-accent);outline-offset:2px}
.seg.small span{min-height:32px;font-size:13px}
.key{display:flex;gap:6px 18px;flex-wrap:wrap;font:500 14px/1.4 var(--mba-sans);padding-bottom:10px;margin:0;list-style:none}
.key li{display:flex;align-items:center;gap:7px;white-space:nowrap}
.glyph{display:inline-block;width:14px;height:14px;flex:none;vertical-align:-2px}
.glyph svg{display:block;width:14px;height:14px;overflow:visible}
.caveat{font:13px/1.6 var(--mba-sans);color:var(--mba-muted);margin:12px 0 0}

/* Main chart */
.plot-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:40px;margin:30px 0 8px}
.plot-shell{margin:0;min-width:0}
.plot-head{display:flex;justify-content:space-between;align-items:baseline;gap:16px;flex-wrap:wrap;margin-bottom:6px}
.metric-title{font-size:clamp(1.5rem,2.6vw,2rem)!important;margin:0!important}
.unit{font:13px/1.5 var(--mba-sans);color:var(--mba-muted);margin:0}
.chart-box{position:relative}
.chart-box svg{display:block;width:100%;height:auto;overflow:visible;touch-action:pan-y}
.chart-box svg:focus-visible{outline:2px solid var(--mba-accent);outline-offset:6px;border-radius:4px}
svg text{font-family:var(--mba-sans)}
.ax{fill:var(--mba-muted);font-size:12px;font-variant-numeric:tabular-nums}
.ax-title{fill:var(--mba-muted);font-size:11px;letter-spacing:.08em;text-transform:uppercase}
.ax-sel{fill:var(--mba-ink);font-weight:600}
.grid{stroke:var(--mba-grid);stroke-width:1;shape-rendering:crispEdges}
.base{stroke:var(--mba-muted);stroke-width:1;shape-rendering:crispEdges;opacity:.6}
.band{fill:var(--mba-band)}
.band-edge{stroke:var(--mba-accent);stroke-width:1;stroke-dasharray:2 3;opacity:.7}
.cross{stroke:var(--mba-ink);stroke-width:1;opacity:.45;pointer-events:none}
.series{fill:none;stroke-width:2.25;stroke-linejoin:round;stroke-linecap:round}
.mk{stroke:var(--mba-paper);stroke-width:2}
.end-name{font-size:13px;font-weight:650;paint-order:stroke;stroke:var(--mba-paper);stroke-width:3px;stroke-linejoin:round}
.end-mk{stroke-width:1.5}
.end-val{fill:var(--mba-muted);font-size:12px;font-variant-numeric:tabular-nums}
.leader{stroke:var(--mba-rule);stroke-width:1}
.hit{fill:transparent;cursor:crosshair}
.tip{position:absolute;z-index:5;min-width:190px;max-width:260px;padding:10px 12px;background:var(--mba-lift);border:1px solid var(--mba-rule);border-radius:6px;box-shadow:0 6px 24px -10px rgb(0 0 0/.35);font:13px/1.45 var(--mba-sans);pointer-events:none}
.tip[hidden]{display:none}
.tip-h{font-weight:600;margin:0 0 6px;display:flex;justify-content:space-between;gap:12px}
.tip-h>span:last-child{font-weight:400;color:var(--mba-muted);white-space:nowrap}
.tip-name{display:flex;align-items:center;gap:7px}
.tip-dl{display:grid;grid-template-columns:1fr auto;gap:3px 14px;margin:0}
.tip-dl dt{color:var(--mba-muted)}
.tip-dl dd{margin:0;text-align:right;font-weight:600;font-variant-numeric:tabular-nums}
.tip ul{list-style:none;margin:0;padding:0;display:grid;gap:3px}
.tip li{display:grid;grid-template-columns:14px 1fr auto auto;gap:7px;align-items:center}
.tip b{font-variant-numeric:tabular-nums;font-weight:600;text-align:right}
.tip em{font-style:normal;color:var(--mba-muted);font-size:12px;font-variant-numeric:tabular-nums;min-width:3.4em;text-align:right}
.tip-f{margin:6px 0 0;color:var(--mba-muted);font-size:12px}

/* Readout */
.reading{border-left:1px solid var(--mba-rule);padding-left:26px;font-size:.98rem}
.reading h3{font-size:1.5rem!important;margin:0 0 12px!important}
.readout{width:100%;border-collapse:collapse;font:14px/1.4 var(--mba-sans);margin:0 0 16px}
.readout th,.readout td{padding:9px 0;border-bottom:1px solid var(--mba-rule);text-align:left;font-weight:500}
.readout td{text-align:right;font:600 1.25rem/1 var(--mba-sans);font-variant-numeric:tabular-nums}
.readout th .glyph{margin-right:8px}
.readout tr:last-child th,.readout tr:last-child td{border-bottom:0}
.readout .best td::after{content:"";display:inline-block;width:6px;height:6px;border-radius:50%;background:var(--mba-accent);margin-left:8px;vertical-align:middle}
.reading #metric-explanation{font-size:.98rem;line-height:1.6}

/* Small multiples */
.block{margin-top:48px}
.block-head{display:flex;justify-content:space-between;align-items:baseline;gap:8px 24px;flex-wrap:wrap;border-top:1px solid var(--mba-rule);padding-top:20px;margin-bottom:6px}
.block-head h3{margin:0!important}
.block-head .showing{font:13px/1.5 var(--mba-sans);color:var(--mba-muted);margin:0}
.block-head .showing strong{color:var(--mba-ink)}
.multiples-group{margin-top:22px}
.multiples{display:grid;grid-template-columns:repeat(auto-fill,minmax(172px,1fr));gap:12px}
.sm{display:flex;flex-direction:column;gap:2px;text-align:left;padding:12px 12px 10px;border:1px solid var(--mba-rule);border-radius:6px;background:transparent;cursor:pointer;min-width:0;transition:border-color .15s,background-color .15s}
.sm:hover{border-color:var(--mba-muted);background:var(--mba-lift)}
.sm[aria-pressed="true"]{border-color:var(--mba-ink);background:var(--mba-lift);box-shadow:inset 0 3px 0 var(--mba-ink)}
.sm-name{font:600 13.5px/1.3 var(--mba-sans)}
.sm-unit{font:12px/1.35 var(--mba-sans);color:var(--mba-muted);min-height:2.7em}
.sm svg{display:block;width:100%;height:auto;margin:6px 0 4px;overflow:visible}
.sm-vals{display:flex;justify-content:space-between;gap:6px;font:600 13px/1.2 var(--mba-sans);font-variant-numeric:tabular-nums}
.sm-vals span{display:flex;align-items:center;gap:4px;min-width:0}
.sm-vals .glyph,.sm-vals .glyph svg{width:10px;height:10px}

/* Frontier */
.frontier-tools{display:flex;flex-wrap:wrap;gap:14px 28px;align-items:end;margin:18px 0 14px}
.frontier-tools .field{min-width:min(100%,260px)}
.frontier-tools fieldset{min-width:min(100%,360px)}
.frontier-line{fill:none;stroke:var(--mba-ink);stroke-width:1.5;stroke-dasharray:5 4;opacity:.55}
.frontier-ring{fill:none;stroke:var(--mba-ink);stroke-width:1.25;opacity:.6}
.pt-label{fill:var(--mba-muted);font-size:11px}
.pt-name{font-size:12.5px;font-weight:650;paint-order:stroke;stroke:var(--mba-paper);stroke-width:3px;stroke-linejoin:round}
.path-thin{fill:none;stroke-width:1.5;opacity:.55}
.frontier-legend{display:flex;gap:6px 20px;flex-wrap:wrap;font:13px/1.5 var(--mba-sans);color:var(--mba-muted);margin:10px 0 0;padding:0;list-style:none}
.frontier-legend li{display:flex;align-items:center;gap:8px}
.frontier-legend svg{width:28px;height:12px}

/* Tables */
details.exact{margin-top:40px;border-top:1px solid var(--mba-rule);padding-top:4px}
summary{cursor:pointer;font:600 15px/1.4 var(--mba-sans);padding:14px 0;list-style-position:outside}
summary:hover{color:var(--mba-accent)}
.table-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch}
table{width:100%;border-collapse:collapse;font:14px/1.45 var(--mba-sans)}
caption{text-align:left;margin-bottom:8px;color:var(--mba-muted)}
.data th,.data td{text-align:right;border-bottom:1px solid var(--mba-rule);padding:9px 12px;font-variant-numeric:tabular-nums}
.data th:first-child,.data td:first-child{text-align:left;padding-left:0}
.data thead th{font-weight:600;border-bottom:1.5px solid var(--mba-ink);white-space:nowrap}
.data tbody th{font-weight:500}
.data small{font-size:12px}
.table-row-selected{background:var(--mba-band)}
.download{margin-top:16px;min-height:40px;padding:8px 14px;border:1px solid var(--mba-rule);border-radius:6px;background:var(--mba-lift);font:500 14px/1.2 var(--mba-sans);cursor:pointer}
.download:hover{border-color:var(--mba-muted)}

/* Prose */
.essay{max-width:780px;margin-top:40px}
.essay h3{margin-top:34px}
.essay>h3:first-child{margin-top:0}
.annotation{border-left:2px solid var(--mba-accent);padding:2px 0 2px 18px;margin:22px 0;color:var(--mba-ink);font-style:italic}
.catalogue{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 40px;margin-top:34px}
.catalogue details{border-top:1px solid var(--mba-rule);padding:2px 0 12px;min-width:0}
.catalogue details p{margin-top:6px}
.catalogue details a{font:14px var(--mba-sans)}
.game-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:32px;margin-top:28px}
.game-group>h3{font:600 12px/1.4 var(--mba-sans)!important;letter-spacing:.1em!important;text-transform:uppercase;color:var(--mba-muted);margin-bottom:4px!important}
.game-group article{border-top:1px solid var(--mba-rule);padding:16px 0}
.game-group article h3{font-size:1.2rem!important}
.game-group article p{font-size:.97rem}
.tag{font:12px/1.5 var(--mba-sans);color:var(--mba-muted)}
.game-bars{max-width:720px;margin:20px 0}
.bar-label{display:flex;justify-content:space-between;align-items:center;gap:20px;margin:14px 0 6px;font:14px/1.4 var(--mba-sans)}
.bar-label strong{font-variant-numeric:tabular-nums}
.bar-track{position:relative;background:var(--mba-panel);height:12px;border-radius:0 3px 3px 0}
.bar-track::after{content:"";position:absolute;inset:0 auto 0 50%;border-left:1px dashed var(--mba-rule)}
.bar{height:100%;border-radius:0 3px 3px 0;background:var(--mba-astra)}
.bar.fable{background:var(--mba-fable)}
.checks{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;padding-left:20px}
.checks li{padding-right:10px}
.checks li::marker{font:600 14px var(--mba-sans);color:var(--mba-muted)}
.checks strong{font-family:var(--mba-sans)}
.limits{padding-left:20px}
.limits li{margin-bottom:.55rem}
.source-list{columns:2;column-gap:40px;padding-left:22px;margin-top:24px}
.source-list li{break-inside:avoid;margin:0 0 10px;font:14px/1.5 var(--mba-sans)}
.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}

@media(max-width:960px){
  .toolbar{grid-template-columns:1fr 1fr}
  .toolbar .key{grid-column:1/-1;padding-bottom:0}
  .plot-layout{grid-template-columns:1fr;gap:26px}
  .reading{border-left:0;border-top:1px solid var(--mba-rule);padding:20px 0 0;display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:0 28px}
  .reading>.eyebrow,.reading>h3{grid-column:1/-1}
  .game-grid{grid-template-columns:1fr}
  .checks{grid-template-columns:1fr}
}
@media(max-width:640px){
  .toolbar{grid-template-columns:1fr;gap:16px}
  .reading{display:block}
  .multiples{grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}
  .sm{padding:10px 9px 8px}
  .sm-name{font-size:12.5px}
  .sm-unit{font-size:11px}
  .sm-vals{font-size:11.5px;gap:2px}
  .catalogue{grid-template-columns:1fr}
  .source-list{columns:1}
  .section{padding:36px 0}
  .data th,.data td{padding:8px 7px}
  .seg span{font-size:13px;padding:0 2px}
  .frontier-tools{gap:14px}
}
@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{transition:none!important;animation:none!important}
}
@media(forced-colors:active){
  .series{stroke:CanvasText}
  .seg input:checked+span{forced-color-adjust:none;background:Highlight;color:HighlightText}
}