/* Best Data Licensing Services: editorial reference layout */
:root{
  --paper:#f6f6f2;
  --surface:#ffffff;
  --ink:#121418;
  --ink-2:#2b3038;
  --muted:#5c626b;
  --line:#e3e3dd;
  --line-2:#cfd0c9;
  --accent:#0a6597;
  --accent-ink:#084d73;
  --accent-soft:#e8f1f6;
  --dark:#0e0f11;
  --dark-2:#1a1c20;
  --on-dark:#f1f2f4;
  --on-dark-muted:#a3a9b1;
  --on-dark-accent:#7cc6ee;
  --serif:"Newsreader",Georgia,"Times New Roman",serif;
  --sans:"Inter",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --mono:"JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,monospace;
  --radius:12px;
  --shadow:0 1px 2px rgba(18,20,24,.04),0 12px 32px -18px rgba(18,20,24,.22);
  color-scheme:light;
}
@media (prefers-color-scheme:dark){
  :root{
    --paper:#0e0f11;
    --surface:#15171a;
    --ink:#eceef1;
    --ink-2:#d3d7dc;
    --muted:#9aa1aa;
    --line:#24272c;
    --line-2:#33373e;
    --accent:#6bbde9;
    --accent-ink:#97d1f1;
    --accent-soft:#11283a;
    --dark:#060708;
    --dark-2:#141619;
    color-scheme:dark;
  }
  .record,.resource-list>a.featured{border:1px solid var(--line-2)}
  .btn-light{background:#f1f2f4}
}

*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:24px;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--paper);color:var(--ink);font:16.5px/1.7 var(--sans);font-feature-settings:"ss01","cv11";-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
a{color:var(--accent);text-decoration-thickness:1px;text-underline-offset:3px}
a:hover{color:var(--accent-ink)}
a,button,input{transition:color .18s,border-color .18s,background .18s,transform .18s,box-shadow .18s}
a:focus-visible,summary:focus-visible,input:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:4px}
p{margin:0 0 18px}
img,svg{max-width:100%}
.skip{position:absolute;left:-10000px}
.skip:focus{left:16px;top:12px;z-index:10;background:var(--surface);color:var(--ink);padding:10px 14px;border-radius:8px}

/* Edition bar and header */
.edition{display:flex;justify-content:space-between;gap:16px;padding:9px max(16px,4vw);border-bottom:1px solid var(--line);font:500 10.5px/1.5 var(--mono);letter-spacing:.09em;text-transform:uppercase;color:var(--muted)}
.edition>span:last-child{white-space:nowrap}
header.site{display:flex;align-items:center;justify-content:space-between;gap:28px;padding:22px max(16px,4vw);border-bottom:1px solid var(--line)}
.brand{font:500 25px/1.1 var(--serif);letter-spacing:-.015em;color:var(--ink);text-decoration:none}
.brand small{display:block;margin-top:6px;font:500 10.5px/1 var(--mono);letter-spacing:.18em;text-transform:uppercase;color:var(--accent)}
.brand:hover{color:var(--ink)}
header.site nav{display:flex;gap:26px;font-size:14px}
header.site nav a{color:var(--ink-2);text-decoration:none}
header.site nav a:hover{color:var(--accent)}
.cta{display:inline-flex;align-items:center;gap:6px;padding:10px 16px;border-radius:999px;background:var(--ink);color:var(--paper);font-size:13.5px;font-weight:500;text-decoration:none;white-space:nowrap}
.cta:hover{color:var(--paper);transform:translateY(-1px);box-shadow:var(--shadow)}

/* Layout */
main{max-width:1340px;margin:0 auto;padding:28px max(16px,4vw) 96px}
main.narrow{max-width:760px}
.crumbs ol{display:flex;flex-wrap:wrap;gap:8px;margin:0 0 36px;padding:0;list-style:none;font:400 11.5px/1.5 var(--mono);color:var(--muted)}
.crumbs li+li:before{content:"/";margin-right:8px;color:var(--line-2)}
.crumbs a{color:inherit;text-decoration:none}
.crumbs a:hover{color:var(--accent)}
.grid{display:grid;grid-template-columns:184px minmax(0,1fr) 272px;gap:56px;align-items:start}
article{min-width:0;max-width:760px}

/* Rail */
.rail{position:sticky;top:24px;font-size:13.5px;padding-right:22px;border-right:1px solid var(--line)}
.rail strong{display:block;margin-bottom:8px}
.rail a{display:block;padding:6px 0;color:var(--ink-2);text-decoration:none}
.rail a:hover{color:var(--accent)}
.rail hr,.record hr{border:0;border-top:1px solid var(--line);margin:16px 0}
.rail strong,.eyebrow{font:500 10.5px/1.5 var(--mono);letter-spacing:.14em;text-transform:uppercase;color:var(--accent)}

/* Headings and answer */
h1{font:500 clamp(40px,5.2vw,66px)/1.03 var(--serif);letter-spacing:-.028em;margin:12px 0 28px;text-wrap:balance;overflow-wrap:anywhere}
h2{font:500 30px/1.18 var(--serif);letter-spacing:-.016em;margin:0 0 18px;text-wrap:balance}
h2 a{color:inherit;text-decoration:none}
h2 a:hover{color:var(--accent)}
h3{font:500 21px/1.25 var(--serif);letter-spacing:-.01em;margin:0}
.answer{position:relative;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:22px 26px 6px 30px;box-shadow:var(--shadow)}
.answer:before{content:"";position:absolute;left:0;top:18px;bottom:18px;width:3px;border-radius:0 3px 3px 0;background:var(--accent)}
.answer p{font:400 21px/1.5 var(--serif);color:var(--ink);margin:8px 0 18px;letter-spacing:-.003em}
.note{font-size:13px;line-height:1.55;color:var(--muted);margin:14px 0 0}

/* Facts */
.facts{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:1px;margin:28px 0 0;background:var(--line);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.fact{background:var(--surface);padding:18px 18px 16px}
.fact strong{display:block;font:500 30px/1.1 var(--serif);letter-spacing:-.02em;color:var(--ink)}
.fact span{display:block;margin-top:6px;font-size:12.5px;line-height:1.45;color:var(--muted)}

/* TOC */
.toc{margin:32px 0 8px;padding:18px 22px;border:1px solid var(--line);border-radius:var(--radius);font-size:13.5px}
.toc strong{font:500 10.5px/1.5 var(--mono);letter-spacing:.14em;text-transform:uppercase;color:var(--muted)}
.toc ol{columns:2;column-gap:28px;margin:10px 0 0;padding:0;list-style:none;counter-reset:toc}
.toc li{counter-increment:toc;padding:4px 0;break-inside:avoid;display:flex;gap:10px}
.toc li:before{content:counter(toc,decimal-leading-zero);font:400 11px/1.9 var(--mono);color:var(--line-2);min-width:18px}
.toc a{color:var(--ink-2);text-decoration:none}
.toc a:hover{color:var(--accent)}

/* Sections */
section{margin-top:52px;padding-top:30px;border-top:1px solid var(--line)}
section ul,section ol{padding-left:20px;margin:0 0 18px}
section li{margin:6px 0}
section li::marker{color:var(--accent)}
ul.cols{columns:2;column-gap:32px}
ul.cols li{break-inside:avoid}
ol.numbered{list-style:none;padding:0;counter-reset:n}
ol.numbered>li{counter-increment:n;position:relative;padding:10px 0 10px 44px;border-bottom:1px solid var(--line);margin:0}
ol.numbered>li:before{content:counter(n,decimal-leading-zero);position:absolute;left:0;top:12px;font:500 12px/1.6 var(--mono);color:var(--accent)}

/* Steps */
ol.steps{list-style:none;padding:0;margin:8px 0 22px;counter-reset:s;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
ol.steps li{counter-increment:s;margin:0;padding:18px 20px 4px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius)}
ol.steps li:before{content:"Step " counter(s,decimal-leading-zero);display:block;font:500 10.5px/1.5 var(--mono);letter-spacing:.12em;text-transform:uppercase;color:var(--accent);margin-bottom:6px}
ol.steps strong{display:block;font:500 18px/1.3 var(--serif);margin-bottom:6px}
ol.steps p{font-size:14.5px;color:var(--ink-2);margin:0 0 14px}

/* Checks */
ul.checks{list-style:none;padding:0;margin:8px 0 18px;display:grid;gap:10px}
ul.checks li{margin:0;display:grid;grid-template-columns:24px 1fr;column-gap:12px;padding:14px 16px;background:var(--surface);border:1px solid var(--line);border-radius:10px}
ul.checks li:before{content:"";grid-row:span 2;width:20px;height:20px;margin-top:3px;border-radius:50%;background:var(--accent-soft) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3E%3Cpath d='M5.5 10.5l3 3 6-7' fill='none' stroke='%230a6597' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center/14px no-repeat}
ul.checks strong{font-weight:600;font-size:15px}
ul.checks span{font-size:14.5px;color:var(--muted)}

/* Tables */
.table-wrap{overflow-x:auto;margin:6px 0 20px;border:1px solid var(--line);border-radius:var(--radius);background:var(--surface)}
table{border-collapse:collapse;width:100%;font-size:14.5px;line-height:1.55}
caption{caption-side:bottom;text-align:left;padding:10px 16px 12px;font-size:12px;color:var(--muted);border-top:1px solid var(--line)}
th,td{text-align:left;vertical-align:top;padding:13px 16px;border-bottom:1px solid var(--line)}
tbody tr:last-child th,tbody tr:last-child td{border-bottom:0}
thead th{font:500 10.5px/1.5 var(--mono);letter-spacing:.1em;text-transform:uppercase;color:var(--muted);background:var(--paper)}
tbody th{font-weight:600;color:var(--ink);min-width:140px}
td{color:var(--ink-2)}

/* Graph */
.graph{margin:30px 0 0;padding:18px 18px 12px;border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);overflow-x:auto}
.graph svg{display:block;width:100%;min-width:600px;height:auto}
.graph rect{fill:var(--paper);stroke:var(--line-2);stroke-width:1}
.graph a:hover rect,.graph a:focus rect{fill:var(--accent-soft);stroke:var(--accent)}
.graph .edge{stroke:var(--accent);stroke-width:1.5;fill:none}
.graph .arrowhead{fill:var(--accent)}
.graph .g-label{font:500 9.5px var(--mono);letter-spacing:.14em;fill:var(--accent)}
.graph .g-name{font:500 14.5px var(--sans);fill:var(--ink)}
.graph figcaption{margin-top:6px;text-align:center;font:400 11.5px/1.5 var(--mono);color:var(--muted)}

/* Cards */
.directory{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
.entry{display:flex;flex-direction:column;gap:8px;padding:20px 22px;color:var(--ink);text-decoration:none;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius)}
.entry small{font:500 10px/1.5 var(--mono);letter-spacing:.12em;text-transform:uppercase;color:var(--accent)}
.entry h3{font-size:20px}
.entry p{font-size:14px;line-height:1.6;color:var(--muted);margin:0}
.entry span{margin-top:auto;padding-top:4px;font-size:13px;font-weight:500;color:var(--accent)}
.entry:hover{color:var(--ink);border-color:var(--accent);transform:translateY(-2px);box-shadow:var(--shadow)}
.entry[hidden]{display:none}
.resource-list{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}
.resource-list>a{display:flex;flex-direction:column;gap:8px;padding:20px;color:var(--ink);text-decoration:none;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius)}
.resource-list>a.featured{background:var(--dark);border-color:var(--dark);color:var(--on-dark)}
.resource-list>a.featured .eyebrow,.resource-list>a.featured .go{color:var(--on-dark-accent)}
.resource-list>a.featured p{color:var(--on-dark-muted)}
.resource-list h3{font-size:22px}
.resource-list p{font-size:14px;line-height:1.55;color:var(--muted);margin:0}
.resource-list .go{margin-top:auto;font-size:13px;font-weight:500;color:var(--accent)}
.resource-list>a:hover{transform:translateY(-2px);box-shadow:var(--shadow);border-color:var(--accent)}

/* Q&A */
details{border-bottom:1px solid var(--line);padding:16px 0}
details:first-of-type{border-top:1px solid var(--line)}
summary{cursor:pointer;list-style:none;display:flex;justify-content:space-between;gap:18px;font-weight:600;font-size:16px;line-height:1.45}
summary::-webkit-details-marker{display:none}
summary:after{content:"+";font:400 20px/1 var(--mono);color:var(--accent);transition:transform .2s}
details[open] summary:after{transform:rotate(45deg)}
details p{margin:12px 0 2px;font-size:15px;color:var(--ink-2)}

/* Sources, paths, citation */
ol.sources{padding-left:22px;font-size:14.5px}
ol.sources li{margin:10px 0}
ol.sources span{display:block;color:var(--muted);font-size:13.5px}
.paths{display:flex;flex-wrap:wrap;gap:10px}
.paths a{padding:9px 16px;border:1px solid var(--line-2);border-radius:999px;color:var(--ink-2);text-decoration:none;font-size:13.5px;background:var(--surface)}
.paths a:hover{border-color:var(--accent);color:var(--accent)}
.citation{display:block;padding:12px 14px;border:1px solid var(--line);border-radius:10px;background:var(--surface);font:400 12.5px/1.5 var(--mono);overflow-wrap:anywhere;color:var(--ink-2)}

/* Search */
.search-label{display:block;font-weight:600;margin:0 0 8px;font-size:14px}
#entry-search{width:100%;padding:14px 16px;font:inherit;font-size:16px;color:var(--ink);background:var(--surface);border:1px solid var(--line-2);border-radius:10px}
#entry-search:focus{border-color:var(--accent)}
#search-status{margin:10px 0 16px}

/* Record (featured entity) */
.record{position:sticky;top:24px;padding:24px;border-radius:16px;background:var(--dark);color:var(--on-dark);font-size:13.5px;box-shadow:var(--shadow)}
.record .eyebrow{color:var(--on-dark-accent)}
.record h2{margin:6px 0 4px;font-size:38px;color:#fff;letter-spacing:-.02em}
.record-line{margin:0 0 6px;color:var(--on-dark-muted);font-size:13.5px}
.record dl{margin:0 0 20px}
.record dt{margin-top:14px;font:500 9.5px/1.5 var(--mono);letter-spacing:.14em;text-transform:uppercase;color:var(--on-dark-muted)}
.record dd{margin:3px 0 0;color:var(--on-dark);overflow-wrap:anywhere}
.record dd a{color:var(--on-dark-accent)}
.record hr{border-top-color:rgba(255,255,255,.12)}
.btn{display:block;text-align:center;padding:11px 14px;border-radius:999px;font-size:13.5px;font-weight:500;text-decoration:none;margin-top:10px}
.btn-light{background:#fff;color:#0e0f11}
.btn-light:hover{color:#0e0f11;transform:translateY(-1px)}
.btn-ghost{border:1px solid rgba(255,255,255,.22);color:var(--on-dark)}
.btn-ghost:hover{border-color:var(--on-dark-accent);color:#fff}
.record-link{display:block;padding:4px 0;color:var(--on-dark-muted);text-decoration:none}
.record-link:hover{color:#fff}

/* Footer */
footer.site{display:grid;grid-template-columns:1fr auto;gap:18px 32px;padding:40px max(16px,4vw);border-top:1px solid var(--line);font-size:13.5px}
.foot-brand strong{display:block;font:500 20px/1.2 var(--serif)}
.foot-brand small{display:block;margin-top:6px;font:500 10px/1 var(--mono);letter-spacing:.18em;text-transform:uppercase;color:var(--accent)}
footer.site nav{display:flex;flex-wrap:wrap;gap:8px 20px;align-items:flex-start;justify-content:flex-end}
footer.site nav a{color:var(--ink-2);text-decoration:none}
footer.site nav a:hover{color:var(--accent)}
footer.site p{grid-column:1/-1;margin:0;max-width:860px;color:var(--muted)}
footer.site .fine{font-size:12px}

/* Responsive */
@media (max-width:1180px){
  .grid{grid-template-columns:minmax(0,1fr) 256px;gap:40px}
  .rail{display:none}
}
@media (max-width:860px){
  header.site{flex-wrap:wrap;gap:16px 24px}
  header.site nav{order:3;width:100%;gap:20px;overflow-x:auto;white-space:nowrap;padding-bottom:2px}
  .grid{display:flex;flex-direction:column;align-items:stretch;gap:40px}
  .grid>*{min-width:0;width:100%}
  article{max-width:none}
  .record{position:static;width:100%}
  .facts{grid-template-columns:repeat(2,minmax(0,1fr))}
  .resource-list{grid-template-columns:1fr}
}
@media (max-width:640px){
  body{font-size:16px}
  .edition>span:first-child{display:none}
  .edition{justify-content:flex-end}
  .brand{font-size:22px}
  .cta{padding:9px 14px;font-size:13px}
  main{padding-top:20px;padding-bottom:64px}
  .crumbs ol{margin-bottom:24px}
  h1{font-size:40px}
  h2{font-size:26px}
  .answer{padding:18px 18px 4px 22px}
  .answer p{font-size:19px}
  .toc ol,ul.cols{columns:1}
  .directory,ol.steps{grid-template-columns:1fr}
  .fact strong{font-size:26px}
  footer.site{grid-template-columns:1fr}
  footer.site nav{justify-content:flex-start}
  tbody th{min-width:110px}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *{transition:none!important}
}
@media print{
  .edition,header.site nav,.cta,.rail,.record,.toc,#network{display:none}
  body{background:#fff;color:#000}
  .grid{display:block}
}