:root{
  --identical:#1a7f37; --equivalent:#bf8700; --couldnt:#c2410c; --extra:#1f6feb;
  --ink:#1c2128; --mut:#5b6573; --line:#e4e8ee; --bg:#ffffff; --alt:#f7f9fc; --band:#fbfcfe;
  --accent:#1f6feb; --code:#eef1f6;
  --mono:ui-monospace,SFMono-Regular,"SF Mono",Menlo,Consolas,monospace;
  --sans:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:auto}
body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.6 var(--sans);-webkit-font-smoothing:antialiased}
h1,h2,h3{line-height:1.2;font-weight:700}
h2{font-size:26px;margin:0 0 12px} h3{font-size:18px;margin:18px 0 8px}
code{font:13px/1.4 var(--mono);background:var(--code);padding:1px 5px;border-radius:4px}
a{color:var(--accent)}
.muted{color:var(--mut)} .small{font-size:13px} .num{text-align:right;font-variant-numeric:tabular-nums}
.pad{padding:24px}

/* nav */
.nav{position:sticky;top:0;z-index:50;display:flex;align-items:center;gap:14px;padding:9px 22px;background:rgba(255,255,255,.92);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.nav-brand{font-weight:800;letter-spacing:.3px;color:var(--accent)}
.nav-links{display:flex;gap:2px;flex-wrap:wrap;flex:1}
.nav-link{border:0;background:none;color:var(--mut);font:600 13px var(--sans);padding:5px 9px;border-radius:6px;cursor:pointer}
.nav-link:hover{background:var(--alt);color:var(--ink)} .nav-link.on{color:var(--accent);background:#eaf1fe}
.nav-gloss{border:1px solid var(--line);background:#fff;border-radius:6px;padding:5px 11px;font:600 13px var(--sans);cursor:pointer;color:var(--ink)}

.page{max-width:1120px;margin:0 auto;padding:0 22px}
.band{padding:46px 0;border-top:1px solid var(--line)}
.band.alt{background:var(--band);margin:0 -100vw;padding-left:100vw;padding-right:100vw}
.band.alt > *{max-width:1076px;margin-left:auto;margin-right:auto}

/* hero */
.hero{padding:40px 0 26px}
.hero-kicker{color:var(--accent);font-weight:700;font-size:13px;letter-spacing:.5px;text-transform:uppercase}
.hero h1{font-size:40px;margin:8px 0 6px;letter-spacing:-.5px}
.hero-tag{font-size:19px;color:var(--mut);max-width:760px;margin:0 0 24px}
.hero-bar{margin:8px 0 18px}
.hero-legend{display:flex;gap:28px;margin-top:12px;flex-wrap:wrap}
.leg{font-size:13px} .leg-dot{display:inline-block;width:10px;height:10px;border-radius:2px;margin-right:6px;vertical-align:middle}
.leg-n{color:var(--mut);font-variant-numeric:tabular-nums} .leg-sub{color:var(--mut);font-size:12px;margin-left:16px}
.hero-headline{font-size:20px;line-height:1.5;max-width:820px;margin:18px 0 22px}
.hero-cta{display:flex;gap:10px;flex-wrap:wrap}

/* shared bits */
.minibar{display:inline-flex;width:100%;border-radius:5px;overflow:hidden;background:var(--line);vertical-align:middle}
.minibar>span{display:flex;align-items:center;justify-content:center;color:#fff;font-size:11px;font-weight:600;min-width:2px}
.chip{border:1px solid var(--line);background:#fff;border-radius:20px;padding:7px 15px;font:600 13px var(--sans);cursor:pointer;color:var(--ink)}
.chip:hover{border-color:var(--accent)} .chip.on{background:var(--accent);color:#fff;border-color:var(--accent)}
.pill{border:1px solid var(--line);background:#fff;border-radius:7px;padding:5px 11px;font:600 12.5px var(--sans);cursor:pointer;color:var(--ink)}
.pill:hover{border-color:var(--accent)} .pill.on{background:#eaf1fe;border-color:var(--accent);color:var(--accent)}
.pill.extra{display:inline-flex;gap:5px;align-items:center} .pill.extra em{font-style:normal;background:var(--extra);color:#fff;border-radius:9px;padding:0 6px;font-size:11px}
.tag{border:1px solid var(--line);background:#fff;border-radius:6px;padding:3px 9px;font:600 12px var(--sans);cursor:pointer;color:var(--mut)}
.tag.on{background:#eaf1fe;border-color:var(--accent);color:var(--accent)}
.badge{display:inline-block;padding:1px 8px;border-radius:10px;font-weight:700;white-space:nowrap}
.term{border-bottom:1px dotted var(--accent);cursor:help}

.prose p, .prose-inline{max-width:820px}
.prose p{margin:0 0 14px} .prose-inline{color:var(--ink);margin:0 0 18px}
.callout{background:var(--alt);border-left:3px solid var(--accent);padding:14px 18px;border-radius:6px;margin:18px 0;max-width:900px}
.callout.big{font-size:17px;border-left-color:var(--identical)}

/* two views */
.twoviews{display:grid;grid-template-columns:1fr auto 1fr;gap:14px;align-items:center;margin:18px 0}
.tv-panel{border:1px solid var(--line);border-radius:10px;padding:16px 18px}
.tv-panel h3{margin:0 0 10px} .tv-panel ul{margin:0;padding-left:18px} .tv-panel li{margin:6px 0;font-size:14px}
.tv-export{background:#fdf6ec;border-color:#f0dcc0} .tv-api{background:#eef6ff;border-color:#cfe2fb}
.tv-arrow{font-size:30px;color:var(--mut);text-align:center;line-height:1}
.tv-arrow-lbl{font-size:11px;margin-top:4px}

/* buckets */
.bucket-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin:16px 0}
.bucket-card{border:1px solid var(--line);border-top:4px solid;border-radius:10px;padding:16px}
.bucket-name{font-weight:800;font-size:17px} .bucket-def{margin:6px 0;font-size:14.5px}
.bucket-disc{font-size:13px;color:var(--mut);margin-top:8px} .bucket-internal{font-size:12px;color:var(--mut);margin-top:10px}

/* scorecard */
.sc-sort{margin:10px 0;font-size:13px;color:var(--mut)} .sc-sort .tag{margin-right:5px}
table.sc{width:100%;border-collapse:collapse;font-size:14px}
.sc th{text-align:left;color:var(--mut);font-size:12px;font-weight:700;padding:6px 8px;border-bottom:2px solid var(--line)}
.sc th.num{text-align:right}
.sc-row{cursor:pointer;border-bottom:1px solid var(--line)} .sc-row:hover{background:var(--alt)}
.sc-row td{padding:8px} .sc-plain{font-weight:400;font-size:12.5px;margin-left:6px}
.sc-exp{color:var(--mut)} .sc-total td{padding:9px 8px;border-top:2px solid var(--line);background:var(--alt)}
.sc-drill td{background:var(--band);padding:0}
.drill{padding:16px 18px} .drill-lead{font-size:15px;margin:0 0 12px;max-width:900px}
.drill-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px 26px;margin-bottom:14px}
.drill-field{font-size:13.5px} .drill-label{font-weight:700;color:var(--mut);font-size:12px;text-transform:uppercase;letter-spacing:.3px;margin-bottom:2px}

/* chart */
.chart{margin:16px 0} .chart svg{width:100%;height:auto;background:#fff;border:1px solid var(--line);border-radius:10px}
.grid{stroke:var(--line)} .axlbl{fill:var(--mut);font-size:11px} .axtitle{fill:var(--mut);font-size:12px;font-weight:600}
.dotlbl{fill:var(--ink);font-size:10px;font-weight:600} .dot:hover circle{fill-opacity:.8}
.tm-lbl{fill:#fff;font-size:12px;font-weight:700} .tm-num{font-size:11px;font-weight:400;fill:#ffffffcc}
figcaption{font-size:13px;color:var(--mut);margin-top:8px;max-width:900px}
.chart-legend{display:flex;align-items:center;flex-wrap:wrap;gap:14px;margin-top:10px;font-size:12.5px;color:var(--mut)}
.cl-item{display:inline-flex;align-items:center;gap:6px}
.cl-dot{width:11px;height:11px;border-radius:50%;display:inline-block}
.cl-circ{border-radius:50%;background:#bbb;display:inline-block;margin-right:2px;opacity:.6}
.cl-sep{width:1px;height:16px;background:var(--line)}

/* treemap cells */
.tm-cell{height:100%;padding:6px 8px;color:#fff;overflow:hidden;line-height:1.25}
.tm-cell-title{font-weight:700;overflow:hidden;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical}
.tm-cell-num{font-size:11px;opacity:.85;margin-top:3px}
/* family detail drill-in */
.fam-detail{border:2px solid;border-radius:10px;padding:16px 18px;margin:10px 0 16px;background:#fff;box-shadow:0 2px 10px rgba(0,0,0,.06)}
.fam-detail-head{display:flex;align-items:center;gap:10px;margin-bottom:8px}
.fam-x{margin-left:auto;border:0;background:none;font-size:22px;cursor:pointer;color:var(--mut);line-height:1}
.ex-caption{font-size:11.5px;color:var(--mut);font-style:italic;margin:8px 0 3px}
.ex-table{width:100%;border-collapse:collapse;margin:2px 0 8px;font-size:12px}
.ex-table th{text-align:left;color:var(--mut);font-size:10.5px;text-transform:uppercase;padding:4px 6px;border-bottom:1px solid var(--line)}
.ex-table td{padding:5px 6px;border-bottom:1px solid var(--line);vertical-align:top}
.ex-rt{font-weight:600;white-space:nowrap} .ex-path{font-family:var(--mono);font-size:11px;color:#0550ae;font-weight:400}
/* missing entirely */
.miss-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;margin:16px 0}
.miss-card{border:1px solid var(--line);border-left:4px solid var(--couldnt);border-radius:8px;padding:14px 16px}
.miss-head{display:flex;justify-content:space-between;align-items:baseline;gap:8px}
.miss-title{font-weight:700;font-size:15px} .miss-count{font-size:12px;color:var(--couldnt);font-weight:700;white-space:nowrap}
.miss-detail{font-size:13.5px;margin:8px 0} .miss-proof{font-size:12px;color:var(--mut);border-top:1px dashed var(--line);padding-top:7px}
/* compare view tabs */
.cmp-viewtabs{display:flex;gap:4px;border-bottom:1px solid var(--line);margin:6px 0 12px}
.vtab{border:0;background:none;border-bottom:2px solid transparent;padding:8px 14px;font:600 13px var(--sans);cursor:pointer;color:var(--mut);margin-bottom:-1px}
.vtab.on{color:var(--accent);border-bottom-color:var(--accent)}

/* families */
.fam-h{display:flex;align-items:baseline;gap:10px;margin-top:26px} .fam-tot{font-size:13px;color:var(--mut);font-weight:600}
.fam-sub{font-size:13.5px;color:var(--mut);margin:4px 0 12px;max-width:820px}
.fam-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;margin:12px 0}
.fam-card{border:1px solid var(--line);border-left:4px solid;border-radius:8px;padding:14px 16px;background:#fff}
.fam-card-head{display:flex;justify-content:space-between;align-items:center;gap:8px}
.fam-title{font-weight:700;font-size:15.5px}
.fam-n{font-weight:700;border-radius:11px;padding:1px 9px;font-size:12px;font-variant-numeric:tabular-nums}
.fam-what{font-size:14px;margin:8px 0} .fam-why{font-size:13.5px;margin:6px 0}
.fam-sowhat{font-size:13px;color:var(--mut);margin:6px 0}
.fam-eg{font-size:12.5px;font-family:var(--mono);background:var(--alt);padding:6px 9px;border-radius:5px;margin:8px 0}
.fam-guard{font-size:12px;color:var(--mut);border-top:1px dashed var(--line);padding-top:7px;margin-top:8px}

/* new resources */
.new-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin:16px 0}
.new-card{border:1px solid var(--line);border-top:4px solid;border-radius:10px;padding:16px}
.new-name{font-weight:800;font-size:16px;margin-bottom:8px} .new-types{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:10px}
.new-blurb{font-size:13.5px}

/* method/residual */
.story-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin:14px 0}
.story{border:1px solid var(--line);border-radius:8px;padding:14px 16px;background:#fff}
.story-t{font-weight:700;margin-bottom:6px} .story p{margin:0;font-size:14px;color:#2b333d}
.resid{max-width:900px} .resid li{margin:10px 0;font-size:15px}

/* compare widget */
.cmp{border:1px solid var(--line);border-radius:12px;overflow:hidden;background:#fff}
.cmp-modes{display:flex;align-items:center;gap:8px;flex-wrap:wrap;padding:12px 14px;background:var(--alt);border-bottom:1px solid var(--line)}
.cmp-hint{font-size:12.5px;color:var(--mut);margin-left:6px}
.cmp-dataset{display:flex;flex-wrap:wrap;align-items:center;gap:6px;padding:10px 14px;background:#fffdf5;border-bottom:1px solid var(--line)}
.cmp-ds-label{font-size:12.5px;font-weight:700;color:var(--mut);margin-right:2px}
.toggle{border:1px solid var(--line);background:#fff;border-radius:6px;padding:4px 11px;font:600 12.5px var(--sans);cursor:pointer;color:var(--mut)}
.toggle.on{background:var(--ink);color:#fff;border-color:var(--ink)}
.cmp-ds-note{flex:1 1 100%;font-size:12px;color:var(--mut);margin-top:2px}
.cmp-types{display:flex;flex-wrap:wrap;gap:6px;padding:11px 14px;border-bottom:1px solid var(--line)}
.cmp-subs{display:flex;flex-wrap:wrap;gap:6px;align-items:center;padding:9px 14px;border-bottom:1px solid var(--line)}
.cmp-sublabel{font-size:12px;color:var(--mut);margin-right:4px}
.cmp-body{display:grid;grid-template-columns:230px 1fr;min-height:420px}
.cmp-list{border-right:1px solid var(--line);overflow:auto;max-height:640px;padding:6px}
.cmp-item{display:flex;justify-content:space-between;align-items:center;gap:6px;width:100%;text-align:left;border:0;background:none;padding:6px 9px;border-radius:6px;cursor:pointer;font:13px var(--sans);color:var(--ink)}
.cmp-item:hover{background:var(--alt)} .cmp-item.on{background:#eaf1fe}
.cmp-item-key{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.cmp-item-badge{font-size:11px;font-weight:700;white-space:nowrap} .cmp-item-badge em{font-style:normal;margin-left:3px}
.cmp-detail{overflow:auto;max-height:760px;padding:16px 18px}
.cmp-head h3{margin:0 0 6px} .cmp-counts{font-size:13px;color:var(--mut);margin-top:8px}
.ok-banner{background:#eaf6ec;border:1px solid #bfe3c7;color:#1a5d2c;padding:14px 16px;border-radius:8px;margin:14px 0;font-size:15px}
.couldnt-banner{background:#fbeae2;border:1px solid #f2c6ad;border-radius:8px;padding:14px 16px;margin:12px 0}
.couldnt-banner p{margin:8px 0;font-size:14px} .new-banner{background:#eef4ff;border:1px solid #cfe0fb;border-radius:8px;padding:14px 16px;margin:12px 0}
.new-banner p{margin:6px 0;font-size:14px}
.d-fam{font-weight:700;margin-top:3px}
.diff-filter{margin:14px 0 8px;font-size:13px;color:var(--mut)} .diff-filter .tag{margin-right:5px}
table.diff{width:100%;border-collapse:collapse;font-size:13px;margin:6px 0}
.diff th{text-align:left;color:var(--mut);font-size:11px;font-weight:700;padding:6px;border-bottom:2px solid var(--line);text-transform:uppercase}
.diff td{padding:8px 6px;border-bottom:1px solid var(--line);vertical-align:top}
.d-path{font-family:var(--mono);font-size:12px;color:#0550ae;white-space:nowrap}
.val{font-family:var(--mono);font-size:12px;word-break:break-word} .val-absent{color:var(--mut);font-style:italic;font-family:var(--sans)}
.d-why{max-width:380px} .d-explain{font-size:12.5px;color:#2b333d;margin:3px 0}
.tech{display:inline-block;margin-top:4px} .tech-toggle{border:0;background:none;color:var(--mut);font-size:11.5px;cursor:pointer;padding:0}
.tech-body{font-size:11.5px;background:var(--alt);border-radius:5px;padding:6px 8px;margin-top:4px}
.tech-body code{font-size:11px}
.json-controls{margin:14px 0 6px}
.json-sxs{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.json-h{font-size:12px;font-weight:700;color:var(--mut);margin-bottom:4px;text-transform:uppercase;letter-spacing:.3px}
.jsonview{border:1px solid var(--line);border-radius:8px;background:#fbfcfe;max-height:520px;overflow:auto}
.json-body{font-family:var(--mono);font-size:11.5px;line-height:1.5;padding:10px}
.j-key{color:#0550ae} .j-punct{color:var(--mut)} .j-null{color:#a00} .j-val{color:#1c2128}
.j-hl{border-radius:3px}
.json-empty{padding:14px;color:var(--mut)}

/* glossary drawer */
.gloss-overlay{position:fixed;inset:0;background:rgba(0,0,0,.32);z-index:100;display:flex;justify-content:flex-end}
.gloss-drawer{width:min(440px,92vw);background:#fff;height:100%;overflow:auto;padding:20px 24px;box-shadow:-8px 0 24px rgba(0,0,0,.12)}
.gloss-head{display:flex;justify-content:space-between;align-items:center;position:sticky;top:0;background:#fff;padding-bottom:8px}
.gloss-x{border:0;background:none;font-size:26px;cursor:pointer;color:var(--mut);line-height:1}
.gloss-drawer dt{font-weight:700;margin-top:14px;color:var(--accent)} .gloss-drawer dd{margin:3px 0 0;font-size:14px;color:#2b333d}

.foot{padding:30px 0;color:var(--mut);font-size:13px;border-top:1px solid var(--line)}

@media(max-width:880px){
  .twoviews{grid-template-columns:1fr} .tv-arrow{transform:rotate(90deg)}
  .bucket-cards,.new-grid{grid-template-columns:1fr} .fam-grid,.story-grid,.drill-grid,.json-sxs{grid-template-columns:1fr}
  .cmp-body{grid-template-columns:1fr} .cmp-list{max-height:200px;border-right:0;border-bottom:1px solid var(--line)}
  .hero h1{font-size:30px}
}