/* Road-ledger — CDL directory design tokens. Tokens live ONLY in :root.
   Every other rule uses var() or color-mix() derivatives. One accent:
   highway amber. No green, no second accent, no gradient, no glass. */
:root{
  --paper:#ffffff;
  --ink:#1c1b17;
  --muted:#4a463f;
  --rule:color-mix(in srgb, var(--ink) 18%, var(--paper));
  --surface:color-mix(in srgb, var(--ink) 4%, var(--paper));
  --surface-strong:color-mix(in srgb, var(--ink) 8%, var(--paper));
  --accent:#b45309;
  --accent-soft:color-mix(in srgb, var(--accent) 10%, var(--paper));
  --accent-deep:color-mix(in srgb, var(--accent) 82%, var(--ink));
  --radius:2px;
  --sans:"Inter",system-ui,-apple-system,"Segoe UI",sans-serif;
  --display:"Archivo",var(--sans);
  --mono:ui-monospace,"SF Mono",Menlo,Consolas,monospace;
  --space-section:72px;
  --space-block:24px;
}
*{box-sizing:border-box}
html,body{overflow-x:clip}
body{
  margin:0;background:var(--paper);color:var(--ink);
  font-family:var(--sans);font-size:17.5px;line-height:1.65;
  -webkit-font-smoothing:antialiased;
}
a{color:var(--accent-deep);text-underline-offset:3px;text-decoration-thickness:1.5px}
a:hover{text-decoration-thickness:2.5px}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible{
  outline:3px solid var(--accent);outline-offset:2px;
}
.wrap{max-width:1040px;margin:0 auto;padding:0 24px}
main{padding-bottom:72px}

/* ---- Header: brand, nav, one sticky CTA ---- */
header.site{
  border-bottom:2px solid var(--ink);position:sticky;top:0;
  background:var(--paper);z-index:10;
}
header.site .wrap{
  display:flex;gap:16px;align-items:center;justify-content:space-between;
  flex-wrap:wrap;padding-top:14px;padding-bottom:14px;
}
.brand{
  font-family:var(--display);font-weight:800;letter-spacing:-.02em;
  color:var(--ink);text-decoration:none;font-size:21px;line-height:1.1;
  min-height:44px;display:inline-flex;align-items:center;
}
.brand span{color:var(--accent)}
nav.main{display:flex;gap:6px;flex-wrap:wrap;align-items:center}
nav.main a{
  color:var(--ink);text-decoration:none;font-weight:600;font-size:16px;
  padding:10px 12px;min-height:44px;display:inline-flex;align-items:center;
  border-radius:999px;
}
nav.main a:hover{background:var(--surface)}
nav.main a[aria-current="page"]{color:var(--accent-deep);box-shadow:inset 0 -3px 0 var(--accent)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  min-height:48px;padding:12px 22px;border-radius:999px;
  background:var(--accent);color:var(--paper);text-decoration:none;
  font-weight:700;font-size:16px;border:2px solid var(--accent);cursor:pointer;
}
.btn:hover{background:var(--accent-deep);border-color:var(--accent-deep)}
.btn.secondary{background:var(--paper);color:var(--ink);border-color:var(--ink)}
.btn.secondary:hover{background:var(--surface)}
.btn-cta{white-space:nowrap}

/* ---- Type hierarchy: display carries it, size + weight only ---- */
h1,h2,h3{font-family:var(--display);line-height:1.12;letter-spacing:-.02em}
h1{font-size:clamp(34px,5.2vw,56px);font-weight:800;margin:48px 0 16px;max-width:22ch}
h2{
  font-size:clamp(26px,3.4vw,34px);font-weight:800;
  margin:var(--space-section) 0 16px;padding-top:20px;position:relative;
}
h2::before{
  content:"";position:absolute;top:0;left:0;width:32px;height:4px;
  background:var(--accent);
}
h3{font-size:21px;font-weight:700;margin:32px 0 10px}
.eyebrow{
  font-family:var(--mono);font-size:13px;font-weight:700;letter-spacing:.08em;
  text-transform:uppercase;color:var(--accent-deep);margin:0 0 4px;
}
.lede{font-size:20px;line-height:1.6;max-width:68ch;margin:0 0 12px}
.hero-cta{display:flex;gap:12px;flex-wrap:wrap;margin:24px 0 8px}
p{margin:0 0 16px;max-width:74ch}
li{margin-bottom:8px}
ol,ul{padding-left:24px}

/* ---- The one signature gesture: dashed route line + mile marker ---- */
.route{border:0;border-top:2px dashed var(--accent);margin:40px 0;position:relative}
.route::after{
  content:"MI " attr(data-mile);position:absolute;right:0;top:-14px;
  background:var(--paper);padding:2px 10px;font-family:var(--mono);
  font-size:13px;font-weight:700;color:var(--accent-deep);
}

/* ---- Cards, ledger, calculator (the evidence artifact) ---- */
.card{border:1px solid var(--rule);border-radius:var(--radius);padding:24px;background:var(--paper)}
.calc{
  background:var(--paper);border:2px solid var(--ink);
  border-top:6px solid var(--accent);padding:28px;margin:32px 0;
}
.calc h2{margin-top:0;padding-top:0}
.calc h2::before{display:none}
.calc-grid{display:grid;grid-template-columns:1fr 1fr;gap:4px 28px}
.calc-grid label{margin-top:16px}
label{display:block;font-weight:700;margin:20px 0 6px}
input,select{
  width:100%;min-height:48px;font-size:16px;padding:11px 12px;
  border:1.5px solid var(--rule);border-radius:var(--radius);
  background:var(--paper);color:var(--ink);
}
input:focus,select:focus{border-color:var(--ink)}
.formula{
  font-family:var(--mono);font-size:14.5px;line-height:1.6;
  background:var(--surface);border:1px solid var(--rule);
  padding:14px 16px;overflow-x:auto;white-space:pre-wrap;
}
.result{
  font-size:clamp(32px,5vw,44px);font-weight:800;font-family:var(--display);
  color:var(--accent-deep);margin:24px 0 8px;line-height:1.1;
}
.result-label{font-family:var(--mono);font-size:13px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--muted);margin:20px 0 0}

/* ---- Tables: spec-sheet on desktop, labelled cards on mobile ---- */
table{width:100%;border-collapse:collapse}
th,td{
  padding:12px 14px;border-bottom:1px solid var(--rule);
  text-align:left;vertical-align:top;
}
thead th{
  font-family:var(--display);font-size:15px;font-weight:800;
  border-bottom:2px solid var(--ink);white-space:nowrap;
}
th[data-sort]{cursor:pointer}
th[data-sort]::after{content:" ↕";font-family:var(--mono);font-size:12px;color:var(--accent-deep)}
td.wrapcell{white-space:normal}
.num{font-family:var(--mono)}
.status{font-weight:700;color:var(--ink)}
td .status{
  display:block;border-left:4px solid var(--accent);
  padding-left:12px;
}
.mono{font-family:var(--mono)}
.small{font-size:15px;color:var(--muted)}
.unverified{font-weight:700;color:var(--accent-deep)}

/* ---- FAQ: labelled reveal, no mystery icons ---- */
.faq details{border:1px solid var(--rule);border-radius:var(--radius);padding:16px 20px;margin:14px 0}
.faq summary{font-weight:700;cursor:pointer;min-height:44px;display:flex;align-items:center;justify-content:space-between;gap:16px;list-style:none}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-family:var(--mono);font-size:22px;font-weight:700;color:var(--accent-deep);flex:none}
.faq details[open] summary::after{content:"−"}
.faq details p:last-child{margin-bottom:0}

footer{border-top:2px solid var(--ink);margin-top:64px;padding:28px 0 48px}
footer p{color:var(--muted)}
footer nav{display:flex;gap:6px;flex-wrap:wrap}
footer nav a{color:var(--ink);text-decoration:none;font-weight:600;padding:10px 12px;min-height:44px;display:inline-flex;align-items:center;border-radius:999px}
footer nav a:hover{background:var(--surface)}

@media(max-width:760px){
  body{font-size:17px}
  .wrap{padding:0 18px}
  h1{margin-top:32px}
  h2{margin-top:56px}
  .calc{padding:20px 18px}
  .calc-grid{grid-template-columns:1fr}
  header.site .wrap{row-gap:8px}
  nav.main{order:3;width:100%}
  nav.main a{padding:10px 10px}
  .btn-cta{margin-left:auto}
  /* Multi-column tables become labelled cards; sort headers become pill buttons */
  table.sortable,table.sortable tbody,table.sortable tr,table.sortable td,
  table.card-table,table.card-table tbody,table.card-table tr,table.card-table td{display:block;width:100%}
  table.sortable thead,table.card-table thead{display:block}
  table.sortable thead tr{display:flex;flex-wrap:wrap;gap:8px}
  table.sortable thead th{
    border:1.5px solid var(--ink);border-radius:999px;padding:10px 14px;
    white-space:normal;
  }
  table.card-table thead{display:none}
  table.sortable tbody tr,table.card-table tbody tr{border:1px solid var(--rule);border-radius:var(--radius);padding:8px 16px;margin:16px 0}
  table.sortable tbody td,table.card-table tbody td{border-bottom:1px solid var(--surface-strong);padding:12px 0}
  table.sortable tbody td:last-child,table.card-table tbody td:last-child{border-bottom:0}
  table.sortable tbody td::before,table.card-table tbody td::before{
    content:attr(data-label);display:block;font-family:var(--mono);
    font-size:12px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;
    color:var(--muted);margin-bottom:2px;
  }
  table.sortable tbody td:first-child,table.card-table tbody td:first-child{font-weight:700}
  /* Field/value tables stack: field above value */
  table:not(.sortable):not(.card-table) td{display:block;border-bottom:0;padding:8px 0}
  table:not(.sortable):not(.card-table) tr{border-bottom:1px solid var(--rule)}
  table:not(.sortable):not(.card-table) tr td:first-child{font-weight:700;padding-bottom:0}
  table:not(.sortable):not(.card-table) thead th{display:block}
}
@media(prefers-reduced-motion:reduce){
  *{scroll-behavior:auto!important;transition:none!important;animation:none!important}
}