:root{
    --paper:#f2ebdb;
    --paper-2:#eae0c9;
    --paper-3:#e3d6b8;
    --paper-4:#d6c69e;
    --ink:#1a1510;
    --ink-soft:#4a4035;
    --red:#d83a1d;
    --blue:#1f3f96;
    --ochre:#cf931f;
    --green:#3f7d4e;
    --plum:#7a3a6e;
    --line:#1a1510;
    --shadow:5px 5px 0 var(--ink);
    --shadow-sm:3px 3px 0 var(--ink);
    --shadow-xs:2px 2px 0 var(--ink);
  }
  *{box-sizing:border-box;margin:0;padding:0;}
  html{scroll-behavior:smooth;}
  body{
    background:var(--paper);
    color:var(--ink);
    font-family:'Hanken Grotesk',sans-serif;
    font-size:17px;
    line-height:1.55;
    -webkit-font-smoothing:antialiased;
    overflow-x:hidden;
  }
  a{color:var(--ink);text-decoration:none;border-bottom:1px solid currentColor;text-underline-offset:3px;}
  a:hover{color:var(--red);}
  button,input,select{font:inherit;color:inherit;}
  [hidden]{display:none!important;}
  .skip-link{position:fixed;left:14px;top:12px;z-index:10000;transform:translateY(-180%);background:var(--ink);color:var(--paper);padding:11px 14px;border:2px solid var(--paper);font-family:'JetBrains Mono',monospace;font-size:.72rem;}
  .skip-link:focus{transform:translateY(0);}
  :focus-visible{outline:3px solid var(--red);outline-offset:3px;}
  .grain{
    position:fixed;inset:0;z-index:9000;pointer-events:none;
    opacity:.23;mix-blend-mode:multiply;
    background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  }
  #progress{
    position:fixed;top:0;left:0;height:6px;width:0%;
    background:var(--red);z-index:9500;border-bottom:1px solid var(--ink);
  }
  .wrap{display:flex;max-width:1440px;margin:0 auto;}
  .sidebar{
    width:282px;flex-shrink:0;position:sticky;top:0;height:100vh;
    padding:30px 22px 30px 30px;border-right:2px solid var(--ink);
    background:var(--paper-2);display:flex;flex-direction:column;gap:18px;overflow-y:auto;
  }
  .brand{display:block;font-family:'Fraunces',serif;font-weight:900;font-size:1.44rem;line-height:.98;letter-spacing:-.02em;border:none;}
  .brand .arrow{color:var(--red);}
  .brand-sub{font-family:'JetBrains Mono',monospace;font-size:.6rem;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-soft);margin-top:8px;}
  .nav-label{font-family:'JetBrains Mono',monospace;font-size:.6rem;letter-spacing:.18em;text-transform:uppercase;color:var(--ink-soft);border-bottom:1px solid var(--ink);padding-bottom:5px;}
  nav ul{list-style:none;display:flex;flex-direction:column;gap:1px;}
  nav a{
    display:flex;gap:10px;align-items:baseline;text-decoration:none;border:none;color:var(--ink);
    font-size:.83rem;font-weight:600;padding:7px 9px;border:1px solid transparent;
    transition:background .15s,border-color .15s;
  }
  nav a .num{font-family:'JetBrains Mono',monospace;font-size:.7rem;color:var(--red);font-weight:700;flex-shrink:0;}
  nav a:hover{background:var(--paper-3);}
  nav a.active{background:var(--ink);color:var(--paper);}
  nav a.active .num{color:var(--ochre);}
  .sidebar-foot{margin-top:auto;font-family:'JetBrains Mono',monospace;font-size:.58rem;color:var(--ink-soft);line-height:1.5;}
  .sb-stat{border-top:1px dashed var(--ink);padding-top:10px;margin-top:6px;display:grid;grid-template-columns:1fr auto;gap:6px;font-family:'JetBrains Mono',monospace;font-size:.58rem;color:var(--ink-soft);}
  .sb-stat b{color:var(--ink);}
  main{flex:1;min-width:0;padding:0 clamp(22px,4vw,70px) 110px;}
  .hero{padding:88px 0 54px;border-bottom:3px double var(--ink);position:relative;overflow:hidden;}
  .hero::before{
    content:"REFERENCE ATLAS";
    position:absolute;right:-28px;top:36px;font-family:'JetBrains Mono',monospace;font-size:.66rem;letter-spacing:.38em;
    color:var(--ink-soft);transform:rotate(90deg);transform-origin:right top;opacity:.56;
  }
  .prev-link{
    display:inline-flex;align-items:center;gap:8px;font-family:'JetBrains Mono',monospace;font-size:.66rem;letter-spacing:.12em;
    text-transform:uppercase;color:var(--ink);text-decoration:none;border:1.5px solid var(--ink);background:var(--paper-2);
    padding:6px 11px;box-shadow:var(--shadow-xs);margin-bottom:18px;
  }
  .prev-link:hover{background:var(--ochre);color:var(--ink);}
  .hero .kicker{
    font-family:'JetBrains Mono',monospace;font-size:.72rem;letter-spacing:.22em;text-transform:uppercase;color:var(--red);margin-bottom:22px;
    display:flex;align-items:center;gap:12px;
  }
  .hero .kicker::after{content:"";flex:1;height:1px;background:var(--ink);}
  .hero-grid{display:grid;grid-template-columns:minmax(0,1.24fr) minmax(330px,.86fr);gap:clamp(28px,4vw,54px);align-items:end;}
  .hero h1{
    font-family:'Fraunces',serif;font-weight:900;font-size:clamp(3.15rem,6.7vw,6.2rem);line-height:.92;
    letter-spacing:-.035em;margin-bottom:24px;max-width:950px;text-wrap:balance;
  }
  .hero h1 em{font-style:italic;color:var(--red);}
  .hero h1 .stroke{-webkit-text-stroke:2px var(--ink);color:transparent;}
  .lead{font-size:1.18rem;max-width:700px;color:var(--ink-soft);line-height:1.56;}
  .lead strong{color:var(--ink);}
  .hero-meta{display:flex;flex-wrap:wrap;gap:9px;margin-top:26px;}
  .chip{
    font-family:'JetBrains Mono',monospace;font-size:.64rem;text-transform:uppercase;letter-spacing:.08em;
    padding:7px 10px;border:1.5px solid var(--ink);background:var(--paper);box-shadow:var(--shadow-xs);
  }
  .chip.solid{background:var(--ink);color:var(--paper);}
  .chip.r{background:var(--red);color:var(--paper);}
  .field-note{border:2px solid var(--ink);background:var(--paper-2);box-shadow:var(--shadow);padding:19px 20px;font-family:'JetBrains Mono',monospace;}
  .field-note .fn-title{font-size:.62rem;letter-spacing:.16em;text-transform:uppercase;color:var(--red);border-bottom:1px solid var(--ink);padding-bottom:8px;margin-bottom:13px;}
  .field-note p{font-family:'Hanken Grotesk',sans-serif;font-size:.96rem;line-height:1.45;color:var(--ink-soft);margin-bottom:12px;}
  .field-note p:last-child{margin-bottom:0;}
  section.module{padding:66px 0 10px;scroll-margin-top:14px;border-bottom:1px solid rgba(26,21,16,.25);}
  .mod-head{display:grid;grid-template-columns:auto minmax(0,1fr) minmax(180px,260px);gap:20px;align-items:start;margin-bottom:28px;}
  .mod-num{
    font-family:'JetBrains Mono',monospace;font-weight:700;font-size:1rem;color:var(--paper);background:var(--red);
    border:2px solid var(--ink);box-shadow:var(--shadow-sm);padding:8px 12px;line-height:1;
  }
  .mod-titles h2{font-family:'Fraunces',serif;font-weight:900;font-size:clamp(1.9rem,4vw,3rem);line-height:1.02;letter-spacing:-.025em;}
  .tag{font-family:'JetBrains Mono',monospace;font-size:.66rem;letter-spacing:.14em;text-transform:uppercase;color:var(--blue);margin-top:8px;}
  .margin-note{font-size:.82rem;line-height:1.45;color:var(--ink-soft);border-left:1.5px solid var(--ink);padding-left:12px;}
  .prose{max-width:730px;}
  .prose p{margin-bottom:17px;}
  .prose p.big{font-size:1.13rem;line-height:1.55;}
  .key{background:linear-gradient(transparent 58%,rgba(207,147,31,.55) 58%);padding:0 1px;font-weight:700;}
  .rule{height:3px;border-top:1px solid var(--ink);border-bottom:1px solid var(--ink);margin:58px 0 0;}
  .score-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin-top:8px;}
  .score-panel{border:2px solid var(--ink);background:var(--paper);box-shadow:var(--shadow-sm);}
  .score-head{display:flex;justify-content:space-between;gap:14px;align-items:baseline;background:var(--ink);color:var(--paper);padding:10px 12px;font-family:'JetBrains Mono',monospace;font-size:.62rem;letter-spacing:.12em;text-transform:uppercase;}
  .score-head .metric{color:var(--ochre);}
  .score-list{list-style:none;}
  .score-list li{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:12px;padding:9px 12px;border-top:1px solid var(--ink);font-size:.9rem;}
  .score-list b{font-family:'JetBrains Mono',monospace;font-size:.82rem;}
  .score-list span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
  .model-board{border:2px solid var(--ink);box-shadow:var(--shadow);background:var(--paper-2);margin-top:8px;}
  .model-board-head{display:flex;justify-content:space-between;gap:16px;align-items:baseline;background:var(--ink);color:var(--paper);padding:10px 12px;font-family:'JetBrains Mono',monospace;font-size:.64rem;letter-spacing:.13em;text-transform:uppercase;}
  .model-board-head b{color:var(--ochre);font-weight:700;}
  .model-tabs,.stack-tabs{display:flex;flex-wrap:wrap;gap:6px;padding:10px 12px;border-bottom:1.5px solid var(--ink);background:var(--paper-2);}
  .model-tabs button,.stack-tabs button{border:1.5px solid var(--ink);background:var(--paper);min-height:44px;padding:9px 12px;cursor:pointer;font-family:'JetBrains Mono',monospace;font-size:.64rem;letter-spacing:.08em;text-transform:uppercase;box-shadow:var(--shadow-xs);}
  .model-tabs button.active,.stack-tabs button.active{background:var(--red);color:var(--paper);}
  .model-table-wrap{overflow:auto;background:var(--paper);max-height:560px;}
  .model-table{width:100%;border-collapse:collapse;font-size:.88rem;}
  .model-table th{text-align:left;font-family:'JetBrains Mono',monospace;font-size:.58rem;letter-spacing:.12em;text-transform:uppercase;color:var(--ink-soft);padding:8px 10px;border-bottom:2px solid var(--ink);white-space:nowrap;position:sticky;top:0;background:var(--paper);z-index:2;}
  .model-table td{padding:10px;border-bottom:1px solid rgba(26,21,16,.32);vertical-align:top;white-space:nowrap;}
  .model-table.snapshot-mode th:nth-child(3),.model-table.snapshot-mode td:nth-child(3),
  .model-table.snapshot-mode th:nth-child(5),.model-table.snapshot-mode td:nth-child(5),
  .model-table.snapshot-mode th:nth-child(7),.model-table.snapshot-mode td:nth-child(7){display:none;}
  .model-table .model-name{font-family:'Fraunces',serif;font-weight:900;font-size:1rem;line-height:1.05;letter-spacing:-.01em;white-space:normal;}
  .model-table .creator{display:block;font-family:'JetBrains Mono',monospace;font-size:.58rem;letter-spacing:.08em;text-transform:uppercase;color:var(--ink-soft);margin-top:3px;}
  .model-table .muted{color:var(--ink-soft);}
  .stack-panel{border:2px solid var(--ink);box-shadow:var(--shadow);background:var(--paper);padding:18px;margin-top:14px;}
  .stack-kicker{font-family:'JetBrains Mono',monospace;font-size:.64rem;letter-spacing:.14em;text-transform:uppercase;color:var(--red);margin-bottom:8px;}
  .stack-title{font-family:'Fraunces',serif;font-weight:900;font-size:clamp(1.6rem,3vw,2.35rem);line-height:1.02;letter-spacing:-.02em;margin-bottom:8px;}
  .stack-copy{max-width:780px;color:var(--ink-soft);font-size:1rem;margin-bottom:18px;}
  .stack-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:0;background:transparent;}
  .stack-card{background:var(--paper);padding:15px;min-height:165px;border:1px solid var(--ink);margin:-1px 0 0 -1px;}
  .stack-card .role{font-family:'JetBrains Mono',monospace;font-size:.58rem;letter-spacing:.13em;text-transform:uppercase;color:var(--red);margin-bottom:7px;}
  .stack-card h3{font-family:'Fraunces',serif;font-size:1.15rem;line-height:1.04;letter-spacing:-.01em;margin-bottom:8px;}
  .stack-card p{font-size:.9rem;color:var(--ink-soft);line-height:1.42;margin-bottom:10px;}
  .stack-card a{font-family:'JetBrains Mono',monospace;font-size:.64rem;text-transform:uppercase;letter-spacing:.06em;}
  .filterbox{
    position:sticky;top:0;z-index:50;background:rgba(242,235,219,.95);backdrop-filter:blur(12px);
    border:2px solid var(--ink);box-shadow:var(--shadow-sm);margin:28px 0 30px;overflow:hidden;
  }
  .filter-title{display:flex;justify-content:space-between;gap:16px;align-items:center;background:var(--ink);color:var(--paper);padding:9px 12px;font-family:'JetBrains Mono',monospace;font-size:.64rem;letter-spacing:.13em;text-transform:uppercase;}
  .filter-title b{color:var(--ochre);}
  .filters{display:grid;grid-template-columns:repeat(auto-fit,minmax(155px,1fr));gap:10px;padding:12px;background:var(--paper-2);}
  .filters input{grid-column:span 2;}
  .filters input,.filters select{
    width:100%;border:1.5px solid var(--ink);background:var(--paper);min-height:42px;padding:8px 10px;
    font-family:'JetBrains Mono',monospace;font-size:.72rem;border-radius:0;
  }
  .filters input:focus,.filters select:focus{outline:3px solid rgba(216,58,29,.18);}
  .benchmark-table{width:100%;border-collapse:collapse;border-top:2px solid var(--ink);font-size:.91rem;}
  .benchmark-table th{
    text-align:left;vertical-align:bottom;font-family:'JetBrains Mono',monospace;font-size:.6rem;letter-spacing:.14em;text-transform:uppercase;
    padding:8px 10px;border-bottom:2px solid var(--ink);color:var(--ink-soft);
  }
  .benchmark-table td{vertical-align:top;padding:12px 10px;border-bottom:1px solid rgba(26,21,16,.36);}
  .benchmark-table tbody tr:hover{background:rgba(234,224,201,.7);}
  .b-name{font-family:'Fraunces',serif;font-weight:900;font-size:1.05rem;line-height:1.08;letter-spacing:-.01em;margin-bottom:5px;}
  .b-meta{display:flex;flex-wrap:wrap;gap:5px;}
  .pill{font-family:'JetBrains Mono',monospace;font-size:.55rem;letter-spacing:.08em;text-transform:uppercase;border:1px solid var(--ink);padding:2px 5px;background:var(--paper-2);white-space:nowrap;}
  .pill.green{background:rgba(63,125,78,.18);}
  .pill.red{background:rgba(216,58,29,.16);}
  .pill.blue{background:rgba(31,63,150,.13);}
  .pill.ochre{background:rgba(207,147,31,.22);}
  .pill.runnable{background:rgba(63,125,78,.18);}
  .pill.partial{background:rgba(207,147,31,.22);}
  .pill.hosted{background:rgba(216,58,29,.16);}
  .links{display:flex;flex-wrap:wrap;gap:6px;}
  .links a{display:inline-flex;align-items:center;min-height:36px;font-family:'JetBrains Mono',monospace;font-size:.65rem;text-transform:uppercase;letter-spacing:.06em;border:1px solid var(--ink);padding:6px 8px;background:var(--paper);white-space:nowrap;}
  .links a:hover{background:var(--red);color:var(--paper);}
  .table-note{font-family:'JetBrains Mono',monospace;font-size:.68rem;color:var(--ink-soft);margin:12px 0 0;}
  .no-results{display:block;border:2px dashed var(--ink);padding:24px;margin-top:16px;background:var(--paper-2);font-family:'JetBrains Mono',monospace;font-size:.8rem;}
  .answer-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin-top:18px;}
  .answer-card{border:2px solid var(--ink);background:var(--paper);box-shadow:var(--shadow-xs);padding:16px;min-height:190px;}
  .answer-card .q{font-family:'JetBrains Mono',monospace;font-size:.58rem;letter-spacing:.12em;text-transform:uppercase;color:var(--red);margin-bottom:10px;}
  .answer-card h3{font-family:'Fraunces',serif;font-weight:900;font-size:1.22rem;line-height:1.05;letter-spacing:-.015em;margin-bottom:8px;}
  .answer-card p{font-size:.91rem;color:var(--ink-soft);line-height:1.43;margin-bottom:10px;}
  .answer-card a{font-family:'JetBrains Mono',monospace;font-size:.66rem;text-transform:uppercase;letter-spacing:.06em;}
  .builder{border:2px solid var(--ink);box-shadow:var(--shadow);background:var(--paper);margin-top:16px;}
  .builder-top{display:grid;grid-template-columns:minmax(0,1fr) minmax(180px,280px);gap:16px;align-items:end;padding:16px;background:var(--paper-2);border-bottom:2px solid var(--ink);}
  .builder-top label{display:block;font-family:'JetBrains Mono',monospace;font-size:.62rem;letter-spacing:.13em;text-transform:uppercase;color:var(--red);margin-bottom:7px;}
  .builder-top select{width:100%;border:1.5px solid var(--ink);background:var(--paper);padding:9px 10px;border-radius:0;font-family:'JetBrains Mono',monospace;font-size:.78rem;}
  .builder-title{font-family:'Fraunces',serif;font-weight:900;font-size:1.55rem;letter-spacing:-.02em;line-height:1.06;}
  .builder-copy{font-size:.92rem;color:var(--ink-soft);margin-top:6px;max-width:680px;}
  .recipe-grid{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:1px;background:var(--ink);}
  .recipe-card{background:var(--paper);padding:15px;min-height:160px;}
  .recipe-card .role{font-family:'JetBrains Mono',monospace;font-size:.56rem;letter-spacing:.12em;text-transform:uppercase;color:var(--red);margin-bottom:7px;}
  .recipe-card h3{font-family:'Fraunces',serif;font-size:1.08rem;line-height:1.05;margin-bottom:7px;}
  .recipe-card p{font-size:.86rem;color:var(--ink-soft);line-height:1.38;}
  .export-row{display:flex;flex-wrap:wrap;gap:8px;margin:12px 0 0;}
  .export-row a{display:inline-flex;align-items:center;min-height:44px;border:1.5px solid var(--ink);background:var(--paper);box-shadow:var(--shadow-xs);padding:8px 11px;font-family:'JetBrains Mono',monospace;font-size:.66rem;letter-spacing:.08em;text-transform:uppercase;text-decoration:none;}
  .export-row a:hover{background:var(--red);color:var(--paper);}
  .atlas-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1px;background:var(--ink);border:2px solid var(--ink);margin-top:16px;}
  .source-card{background:var(--paper);padding:18px 18px 16px;min-height:160px;}
  .source-card h3{font-family:'Fraunces',serif;font-weight:900;font-size:1.22rem;letter-spacing:-.015em;margin-bottom:5px;}
  .source-card .who{font-family:'JetBrains Mono',monospace;font-size:.6rem;letter-spacing:.12em;text-transform:uppercase;color:var(--red);margin-bottom:10px;}
  .source-card p{font-size:.91rem;color:var(--ink-soft);line-height:1.44;margin-bottom:12px;}
  .source-card a{font-family:'JetBrains Mono',monospace;font-size:.68rem;text-transform:uppercase;letter-spacing:.06em;}
  .price-muted{font-family:'JetBrains Mono',monospace;font-size:.7rem;color:var(--ink-soft);margin-top:8px;}
  .method-list{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:0;margin-top:18px;}
  .method{background:var(--paper);padding:17px 16px;min-height:145px;border:1px solid var(--ink);margin:-1px 0 0 -1px;}
  .method .n{font-family:'JetBrains Mono',monospace;color:var(--red);font-size:.68rem;margin-bottom:9px;}
  .method h3{font-family:'Fraunces',serif;font-weight:900;font-size:1.12rem;line-height:1.05;margin-bottom:8px;}
  .method p{font-size:.9rem;color:var(--ink-soft);line-height:1.42;}
  .faq-list{border-top:2px solid var(--ink);margin-top:22px;}
  .faq-list details{border-bottom:1px solid rgba(26,21,16,.45);padding:13px 0;}
  .faq-list summary{cursor:pointer;font-family:'Fraunces',serif;font-weight:900;font-size:1.12rem;line-height:1.14;}
  .faq-list p{max-width:760px;color:var(--ink-soft);font-size:.95rem;margin-top:9px;}
  .cta-card{
    border:2px solid var(--ink);background:var(--ink);color:var(--paper);box-shadow:var(--shadow);
    padding:26px;margin:36px 0 6px;max-width:820px;
  }
  .cta-card h3{font-family:'Fraunces',serif;font-weight:900;font-size:1.8rem;letter-spacing:-.02em;margin-bottom:8px;}
  .cta-card p{color:var(--paper-3);max-width:680px;margin-bottom:12px;}
  .cta-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px;}
  .cta-row a{font-family:'JetBrains Mono',monospace;font-size:.72rem;letter-spacing:.08em;text-transform:uppercase;border:1.5px solid var(--paper);padding:9px 12px;color:var(--paper);background:transparent;}
  .cta-row a:first-child{background:var(--red);}
  .cta-row a:hover{background:var(--paper);color:var(--ink);}
  footer{
    font-family:'JetBrains Mono',monospace;font-size:.68rem;color:var(--ink-soft);line-height:1.55;
    border-top:3px double var(--ink);padding:30px 0 60px;margin-top:58px;
  }
  footer .f-big{font-family:'Fraunces',serif;font-weight:900;font-size:1.5rem;color:var(--ink);margin-bottom:10px;letter-spacing:-.02em;}
  .domain-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1px;background:var(--ink);border:2px solid var(--ink);}
  .domain-card{display:flex;flex-direction:column;min-height:220px;padding:18px;background:var(--paper);border:none;text-decoration:none;color:var(--ink);}
  .domain-card:hover{background:var(--paper-2);color:var(--ink);}
  .domain-count{align-self:flex-start;background:var(--red);color:var(--paper);border:1px solid var(--ink);padding:3px 7px;font-family:'JetBrains Mono',monospace;font-size:.68rem;}
  .domain-card h3{font-family:'Fraunces',serif;font-size:1.35rem;line-height:1.02;margin:16px 0 8px;}
  .domain-card p{color:var(--ink-soft);font-size:.9rem;line-height:1.4;}
  .domain-link{margin-top:auto;padding-top:18px;font-family:'JetBrains Mono',monospace;font-size:.64rem;text-transform:uppercase;letter-spacing:.07em;}
  .filters .reset-filters{min-height:44px;border:1.5px solid var(--ink);background:var(--ink);color:var(--paper);padding:8px 10px;cursor:pointer;font-family:'JetBrains Mono',monospace;font-size:.7rem;text-transform:uppercase;letter-spacing:.07em;}
  .filters .reset-filters:hover{background:var(--red);}
  .verified,.tagline{display:block;margin-top:6px;color:var(--ink-soft);font-family:'JetBrains Mono',monospace;font-size:.56rem;line-height:1.35;text-transform:uppercase;letter-spacing:.06em;}
  .changelog{margin-top:28px;border:2px solid var(--ink);background:var(--paper);box-shadow:var(--shadow-xs);}
  .changelog h3{padding:11px 14px;background:var(--ink);color:var(--paper);font-family:'Fraunces',serif;font-size:1.3rem;}
  .change{display:grid;grid-template-columns:130px minmax(0,1fr);gap:16px;padding:12px 14px;border-top:1px solid var(--ink);}
  .change time{font-family:'JetBrains Mono',monospace;font-size:.7rem;color:var(--red);}
  .change p{font-size:.9rem;color:var(--ink-soft);}

  /* Domain guides reuse the atlas system without the persistent reference sidebar. */
  .category-page{min-height:100vh;}
  .category-nav{position:sticky;top:0;z-index:8000;display:flex;justify-content:space-between;align-items:center;gap:20px;padding:15px clamp(18px,4vw,54px);border-bottom:2px solid var(--ink);background:rgba(234,224,201,.96);backdrop-filter:blur(10px);}
  .category-nav nav{display:flex;align-items:center;gap:9px;font-family:'JetBrains Mono',monospace;font-size:.66rem;text-transform:uppercase;letter-spacing:.08em;}
  .category-main{width:min(1120px,calc(100% - 40px));margin:0 auto;padding:0 0 70px;}
  .category-hero{padding:90px 0 54px;border-bottom:3px double var(--ink);}
  .category-hero .kicker{font-family:'JetBrains Mono',monospace;font-size:.7rem;letter-spacing:.18em;text-transform:uppercase;color:var(--red);margin-bottom:20px;}
  .category-hero h1{max-width:1020px;font-family:'Fraunces',serif;font-size:clamp(3rem,7vw,6.8rem);font-weight:900;line-height:.91;letter-spacing:-.035em;text-wrap:balance;}
  .category-hero .lead{margin-top:24px;}
  .category-hero .chip{display:inline-flex;text-decoration:none;}
  .category-guidance{display:grid;grid-template-columns:minmax(260px,.8fr) minmax(0,1.2fr);gap:clamp(30px,6vw,80px);padding:54px 0;border-bottom:1px solid rgba(26,21,16,.35);}
  .category-guidance h2{margin-top:9px;font-family:'Fraunces',serif;font-size:clamp(1.8rem,4vw,3.1rem);line-height:1;}
  .category-guidance p{font-size:1.08rem;line-height:1.6;color:var(--ink-soft);}
  .category-list{padding:64px 0 20px;}
  .mod-head.compact{margin-bottom:24px;}
  .category-cards{display:grid;grid-template-columns:1fr 1fr;gap:14px;}
  .benchmark-card{display:flex;flex-direction:column;min-height:310px;border:2px solid var(--ink);background:var(--paper);box-shadow:var(--shadow-xs);padding:18px;}
  .benchmark-card-top{display:flex;justify-content:space-between;gap:18px;padding-bottom:14px;border-bottom:1px solid var(--ink);}
  .benchmark-card h3{font-family:'Fraunces',serif;font-size:1.35rem;line-height:1.05;}
  .benchmark-card dl{display:grid;gap:12px;margin:16px 0;}
  .benchmark-card dl div{display:grid;grid-template-columns:90px minmax(0,1fr);gap:10px;}
  .benchmark-card dt{font-family:'JetBrains Mono',monospace;font-size:.58rem;text-transform:uppercase;letter-spacing:.08em;color:var(--red);}
  .benchmark-card dd{font-size:.9rem;color:var(--ink-soft);line-height:1.4;}
  .benchmark-card .links{margin-top:auto;}
  .category-next{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(260px,.75fr);align-items:end;gap:30px;margin:60px 0 20px;padding:28px;border:2px solid var(--ink);background:var(--ink);color:var(--paper);box-shadow:var(--shadow);}
  .category-next h2{font-family:'Fraunces',serif;font-size:2rem;line-height:1;margin:9px 0;}
  .category-next p{max-width:680px;color:var(--paper-3);}
  .category-next .tag{color:var(--ochre);}
  .category-next .cta-row{justify-content:flex-end;}
  .related-domains{padding:54px 0 20px;border-top:3px double var(--ink);}
  .related-domains h2{font-family:'Fraunces',serif;font-size:1.7rem;margin-bottom:18px;}
  .related-domains>div{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));border:1px solid var(--ink);}
  .related-domains a{display:flex;justify-content:space-between;gap:10px;min-height:48px;align-items:center;padding:9px 12px;border:1px solid var(--ink);text-decoration:none;font-family:'JetBrains Mono',monospace;font-size:.68rem;text-transform:uppercase;}
  .related-domains a:hover{background:var(--red);color:var(--paper);}
  .related-domains a span{color:var(--red);}
  @media(max-width:1080px){
    .wrap{display:block;}
    .sidebar{width:100%;height:auto;position:sticky;top:0;z-index:8000;overflow-x:auto;display:block;padding:14px 18px;border-right:none;border-bottom:2px solid var(--ink);}
    .brand{font-size:1.1rem;white-space:nowrap;}
    .brand-sub,.nav-label,.sidebar-foot,.sb-stat{display:none;}
    nav ul{flex-direction:row;gap:4px;margin-top:8px;}
    nav a{white-space:nowrap;padding:6px 9px;}
    nav a .num{font-size:.76rem;}
    nav a{min-height:44px;}
    main{padding:0 20px 90px;}
    .hero{padding:54px 0 44px;}
    .hero-grid,.mod-head{grid-template-columns:1fr;}
    .margin-note{max-width:720px;}
    .filters{grid-template-columns:1fr 1fr;}
    .score-grid,.atlas-grid,.method-list,.stack-grid,.answer-grid,.recipe-grid,.domain-grid{grid-template-columns:1fr 1fr;}
    .builder-top{grid-template-columns:1fr;}
    .filterbox{top:72px;}
    section.module{scroll-margin-top:104px;}
    .category-main{padding:0 0 70px;}
  }
  @media(max-width:720px){
    body{font-size:16px;}
    .hero h1{font-size:2.85rem;}
    .score-grid,.atlas-grid,.method-list,.filters,.answer-grid,.recipe-grid,.stack-grid,.domain-grid{grid-template-columns:1fr;}
    main{padding-left:15px;padding-right:15px;}
    .sidebar{padding-left:12px;padding-right:12px;}
    nav ul{gap:2px;}
    nav a{gap:5px;padding:7px;font-size:.7rem;}
    .hero{padding-top:38px;}
    .hero::before{display:none;}
    .filterbox{position:relative;top:auto;}
    .benchmark-table thead{display:none;}
    .benchmark-table,.benchmark-table tbody,.benchmark-table tr,.benchmark-table td{display:block;width:100%;}
    .benchmark-table tr{border-bottom:2px solid var(--ink);padding:12px 0;}
    .benchmark-table td{border-bottom:none;padding:5px 0;}
    .benchmark-table td::before{content:attr(data-label);display:block;font-family:'JetBrains Mono',monospace;font-size:.58rem;letter-spacing:.12em;text-transform:uppercase;color:var(--red);margin-bottom:2px;}
    .links a{min-height:44px;}
    .model-table th:nth-child(3),.model-table td:nth-child(3),.model-table th:nth-child(5),.model-table td:nth-child(5),.model-table th:nth-child(7),.model-table td:nth-child(7){display:none;}
    .filters input{grid-column:auto;}
    .change{grid-template-columns:1fr;gap:4px;}
    .category-nav{align-items:flex-start;padding:12px 15px;}
    .category-nav nav{justify-content:flex-end;flex-wrap:wrap;text-align:right;}
    .category-main{width:min(100% - 30px,1120px);padding:0 0 60px;}
    .category-hero{padding:58px 0 42px;}
    .category-hero h1{font-size:2.9rem;}
    .category-guidance,.category-next{grid-template-columns:1fr;}
    .category-cards{grid-template-columns:1fr;}
    .benchmark-card{min-height:0;}
    .category-next .cta-row{justify-content:flex-start;}
    .related-domains>div{grid-template-columns:1fr;}
  }
  @media(prefers-reduced-motion:reduce){
    html{scroll-behavior:auto;}
    *,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;}
  }
  @media print{
    .sidebar,#progress,.grain,.filterbox{display:none;}
    body{background:#fff;}
    main{padding:0;}
    .score-panel,.source-card,.method,.cta-card{break-inside:avoid;box-shadow:none;}
    a{border-bottom:none;text-decoration:underline;}
  }