/* ADC site styles. Light theme only; no animation or transitions.
   Tokens are the catalog's own colors (spec §1). */

:root {
  --adc-blue:     #264F94;
  --adc-blue-ink: #0C5290;
  --adc-red:      #C42031;
  --adc-sky:      #A8C8E8;
  --adc-sky-2:    #EAF4FB;
  --ink:          #1B1F24;
  --ink-2:        #4A5361;
  --line:         #D6DEE8;
  --paper:        #FFFFFF;
  --paper-2:      #F5F8FB;

  --serif: "Source Serif 4", Georgia, "Times New Roman", serif;
  --sans: Inter, system-ui, -apple-system, "Segoe UI", sans-serif;
  --maxw: 1240px;
  --gutter: 24px;
  --hdr: 0px; /* sticky header height, set by site.js on desktop */
  color-scheme: light;
}

*, *::before, *::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-padding-top: calc(var(--hdr) + 12px);
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 400 16px/1.5 var(--sans);
}

img { max-width: 100%; height: auto; }

a { color: var(--adc-blue-ink); text-underline-offset: 2px; }
a:hover { color: var(--adc-blue); }

:focus-visible { outline: 3px solid var(--adc-blue); outline-offset: 2px; }
main:focus { outline: none; }

h1, h2, h3 { font-family: var(--serif); line-height: 1.2; }

.vh {
  position: absolute; width: 1px; height: 1px; margin: -1px; padding: 0;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

.skip {
  position: absolute; left: -9999px; top: 8px; z-index: 100;
  background: var(--paper); color: var(--adc-blue-ink); padding: 8px 14px;
  border: 2px solid var(--adc-blue); font-weight: 600;
}
.skip:focus { left: 16px; }

/* ---- page frame ---------------------------------------------------------- */

main > * {
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

/* ---- header -------------------------------------------------------------- */

.site-header { background: var(--paper); z-index: 20; }

.bar {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 10px var(--gutter);
  display: flex;
  align-items: center;
  gap: 28px;
}

.brand { flex: none; display: block; }
.brand img { display: block; width: 220px; height: auto; }

.bar .search { flex: 1 1 auto; max-width: 560px; }

.reach {
  margin: 0 0 0 auto;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  font-size: 14px;
  line-height: 1.45;
}
.reach a { text-decoration: none; font-weight: 600; }
.reach a:first-child { font-size: 17px; font-variant-numeric: tabular-nums; }
.reach a:hover { text-decoration: underline; }

/* the catalog's tab edge: sky strip, tabs, the current tab filled ADC blue */
.tabs {
  background: var(--adc-sky);
  border-bottom: 4px solid var(--adc-blue);
}
.tabs-inner {
  padding: 8px 16px 0;
  display: flex;
  align-items: flex-end;
  overflow-x: auto;
  scrollbar-width: thin;
}
.tabs ul { display: flex; gap: 2px; margin: 0; padding: 0; list-style: none; }
/* centred while it fits; auto margins drop to 0 when the strip has to scroll */
.tabs .tabs-adc { margin-left: auto; }
.tabs-coat { margin-right: auto; }
.tabs a {
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-height: 42px;
  padding: 4px 8px;
  border-radius: 6px 6px 0 0;
  background: var(--adc-sky-2);
  color: var(--adc-blue);
  font-size: 12px;
  font-weight: 600;
  line-height: 1.2;
  white-space: nowrap;
  text-decoration: none;
}
.tabs a:hover { background: var(--paper); color: var(--adc-blue-ink); }
.tabs a[aria-current="page"] { background: var(--adc-blue); color: var(--paper); }
.tabs a:focus-visible { outline-offset: -3px; outline-color: var(--adc-red); }

.tabs-coat {
  flex: none;
  display: flex;
  flex-direction: column;
  margin-left: 12px;
  padding-left: 12px;
  border-left: 1px solid var(--adc-blue);
}
.coat-label {
  padding: 0 2px 3px;
  color: var(--adc-blue);
  font: italic 600 13px/1.2 var(--serif);
  white-space: nowrap;
}

/* ---- search box + suggestions ------------------------------------------- */

.search-box { position: relative; display: flex; }
.search input {
  flex: 1 1 auto;
  min-width: 0;
  height: 42px;
  padding: 0 12px;
  border: 1.5px solid var(--adc-blue);
  border-right: 0;
  border-radius: 4px 0 0 4px;
  background: var(--paper);
  color: var(--ink);
  font: 400 15px var(--sans);
}
.search input::placeholder { color: var(--ink-2); }
.search input:focus-visible { outline-offset: 0; }
.search button {
  flex: none;
  height: 42px;
  padding: 0 18px;
  border: 0;
  border-radius: 0 4px 4px 0;
  background: var(--adc-blue);
  color: var(--paper);
  font: 600 15px var(--sans);
  cursor: pointer;
}
.search button:hover { background: var(--adc-blue-ink); }

.search-big input, .search-big button { height: 52px; font-size: 17px; }

.suggest {
  position: absolute;
  top: calc(100% + 4px);
  left: 0;
  right: 0;
  z-index: 30;
  margin: 0;
  padding: 4px 0;
  list-style: none;
  max-height: 70vh;
  overflow-y: auto;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 4px;
  box-shadow: 0 8px 20px rgba(27, 31, 36, 0.14);
  text-align: left;
}
.suggest[hidden] { display: none; }
.suggest li { padding: 8px 12px; cursor: pointer; }
.suggest li[aria-selected="true"], .suggest li:hover { background: var(--adc-sky-2); }
.suggest-line { display: block; font-size: 14px; line-height: 1.35; }
.suggest-sku {
  margin-right: 8px;
  color: var(--adc-blue-ink);
  font-weight: 700;
  font-feature-settings: "tnum";
  letter-spacing: 0.01em;
  white-space: nowrap;
}
.suggest-group { font-weight: 600; }
.suggest-where { display: block; color: var(--ink-2); font-size: 12.5px; }
.suggest-all { border-top: 1px solid var(--line); color: var(--adc-blue-ink); font-size: 14px; font-weight: 600; }

/* ---- shared page heads ----------------------------------------------------- */

.page-head, .section-head { padding-top: 32px; padding-bottom: 8px; }
.page-head h1, .section-head h1 {
  margin: 0 0 10px;
  color: var(--adc-blue);
  font-size: 32px;
  font-weight: 700;
}
.page-sub { margin: 0 0 16px; max-width: 70ch; color: var(--ink-2); }

.tag {
  display: inline-block;
  padding: 1px 8px;
  border: 1px solid var(--line);
  border-radius: 3px;
  background: var(--paper);
  color: var(--ink-2);
  font-size: 13px;
  white-space: nowrap;
}
.section-head .tag { margin: 0; }
.lede { max-width: 72ch; }
.lede p { margin: 12px 0 4px; font-size: 17px; }
.counts { margin: 4px 0 0; color: var(--ink-2); font-size: 14px; }

/* ---- section page ---------------------------------------------------------- */

.section-layout { padding-bottom: 48px; }

.toc {
  margin: 16px 0 8px;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: var(--paper-2);
}
.toc summary {
  padding: 10px 14px;
  color: var(--ink);
  font-weight: 600;
  font-size: 14px;
  cursor: pointer;
}
.toc ol {
  margin: 0;
  padding: 0 8px 10px;
  list-style: none;
  max-height: 60vh;
  overflow-y: auto;
}
.toc a {
  display: block;
  padding: 5px 10px;
  border-left: 2px solid var(--line);
  color: var(--ink-2);
  font-size: 13.5px;
  line-height: 1.35;
  text-decoration: none;
}
.toc a:hover { border-left-color: var(--adc-blue); color: var(--adc-blue-ink); }

.legend {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px 10px;
  margin: 8px 0 0;
  color: var(--ink-2);
  font-size: 13px;
}
.legend .nr, .legend .mk { margin-left: 8px; }

.page-heading {
  margin: 36px 0 0;
  padding: 10px 14px;
  border-left: 6px solid var(--adc-blue);
  background: var(--adc-sky-2);
  color: var(--adc-blue);
  font-size: 18px;
  font-weight: 700;
}

.group {
  padding: 26px 0 28px;
  border-top: 1px solid var(--line);
}
.page-heading + .group { border-top: 0; }
.group:target > .group-head { background: var(--adc-sky-2); box-shadow: 0 0 0 8px var(--adc-sky-2); }

.group-head { display: flex; flex-wrap: wrap; align-items: baseline; gap: 6px 14px; }
.group-head h3 {
  margin: 0;
  color: var(--adc-red);
  font-size: 22px;
  font-weight: 700;
}
.intro { max-width: 75ch; margin: 10px 0 0; }

.specs { margin: 12px 0 0; max-width: 80ch; }
.specs summary { color: var(--adc-blue-ink); font-weight: 600; font-size: 14px; cursor: pointer; }
.specs ul { margin: 8px 0 0; padding-left: 1.2em; font-size: 14.5px; }
.specs li { margin: 2px 0; }
.specs li.sub { list-style: none; margin: 10px 0 2px -1.2em; font-weight: 600; }

.media { display: flex; flex-wrap: wrap; gap: 10px; margin: 14px 0 0; }
.thumb {
  display: block;
  padding: 4px;
  border: 1px solid var(--line);
  border-radius: 3px;
  background: var(--paper);
  cursor: zoom-in;
}
.thumb:hover { border-color: var(--adc-blue); }
.thumb img { display: block; width: auto; height: auto; max-height: 120px; }

.basis {
  margin: 16px 0 6px;
  color: var(--adc-red);
  font-size: 14px;
  font-weight: 600;
}

.notes { margin: 10px 0 0; padding-left: 1.2em; color: var(--ink-2); font-size: 14px; max-width: 80ch; }
.footnotes { margin: 8px 0 0; padding-left: 1.6em; color: var(--ink-2); font-size: 13.5px; max-width: 80ch; }

.pill {
  display: inline-block;
  padding: 0 7px;
  border: 1px solid currentColor;
  border-radius: 999px;
  color: var(--adc-red);
  font-size: 11.5px;
  font-weight: 600;
  line-height: 18px;
  white-space: nowrap;
  vertical-align: 1px;
}
.mk, .nr { color: var(--adc-red); font-weight: 700; }
sup.fn { line-height: 0; }

/* ---- tables ------------------------------------------------------------------- */

.tbl {
  margin: 8px 0 0;
  max-height: 75vh;
  overflow: auto;
  border: 1px solid var(--line);
  border-radius: 3px;
  background: var(--paper);
}
.tbl table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  font-size: 14px;
  font-variant-numeric: tabular-nums;
}
.tbl caption {
  padding: 8px 12px;
  border-bottom: 1px solid var(--line);
  color: var(--ink);
  font-weight: 600;
  text-align: left;
}
.tbl thead th {
  position: sticky;
  top: 0;
  z-index: 1;
  padding: 8px 12px;
  border-bottom: 2px solid var(--adc-blue);
  background: var(--adc-sky-2);
  color: var(--ink);
  font-size: 13px;
  font-weight: 600;
  text-align: left;
  white-space: nowrap;
}
.tbl tbody th, .tbl tbody td {
  padding: 7px 12px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}
.tbl tbody tr:last-child > * { border-bottom: 0; }
.tbl tbody tr:nth-child(even) { background: var(--paper-2); }
.tbl tbody th {
  color: var(--adc-blue-ink);
  font-weight: 600;
  font-feature-settings: "tnum";
  letter-spacing: 0.01em;
  white-space: nowrap;
}
.tbl .num { text-align: right; white-space: nowrap; }
.tbl thead th.num { text-align: right; }
.p2 { display: none; }

/* ---- image dialog -------------------------------------------------------------- */

.lightbox {
  width: auto;
  max-width: min(94vw, 1000px);
  max-height: 94vh;
  padding: 0;
  border: 0;
  border-radius: 4px;
  background: var(--paper);
  color: var(--ink);
}
.lightbox::backdrop { background: rgba(27, 31, 36, 0.72); }
.lightbox form { display: flex; justify-content: flex-end; padding: 8px 8px 0; }
.lb-close {
  padding: 6px 14px;
  border: 1px solid var(--line);
  border-radius: 3px;
  background: var(--paper);
  color: var(--adc-blue-ink);
  font: 600 14px var(--sans);
  cursor: pointer;
}
.lb-close:hover { border-color: var(--adc-blue); }
.lightbox figure { margin: 0; padding: 8px 16px 14px; }
.lb-img img { display: block; margin: 0 auto; width: auto; height: auto; max-width: 100%; max-height: calc(94vh - 110px); }
.lightbox figcaption { padding-top: 8px; color: var(--ink-2); font-size: 14px; }

/* ---- stub ------------------------------------------------------------------- */

.stub-wrap { padding-top: 16px; padding-bottom: 56px; }
.stub {
  max-width: 70ch;
  padding: 20px 24px;
  border: 1px solid var(--line);
  border-left: 6px solid var(--adc-sky);
  background: var(--paper-2);
}
.stub-lead { color: var(--ink); font: 600 21px/1.35 var(--serif); }
.stub p { margin: 8px 0; }
.stub-reach { display: flex; flex-wrap: wrap; gap: 8px 24px; margin: 12px 0; padding: 0; list-style: none; font-size: 18px; font-weight: 600; }

/* ---- home --------------------------------------------------------------------- */

main > .coatings-band, main > .contact-strip { max-width: none; padding-inline: 0; }

.hero { padding: 24px var(--gutter) 8px; }
.hero-inner {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 40px clamp(20px, 5vw, 64px) 32px;
  border: 5px solid var(--adc-blue);
  background: var(--adc-sky-2);
  text-align: center;
}
.hero-logo { display: block; width: 440px; margin: 0 auto 18px; }
.hero h1 { margin: 0; color: var(--adc-blue); font-size: 40px; font-weight: 700; }
.hero-sub { margin: 6px 0 0; color: var(--adc-red); font: italic 600 21px/1.3 var(--serif); }
.hero-text { max-width: 62ch; margin: 18px auto 0; color: var(--ink); }
.hero-text p { margin: 0; }
.hero .search { max-width: 640px; margin: 22px auto 0; }
.hero-edition { margin: 14px 0 0; color: var(--ink-2); font-size: 14px; }

.home-sections, .brand-wall { padding-top: 40px; padding-bottom: 40px; }
.home-sections h2, .brand-wall h2, .coatings-band h2 { margin: 0 0 16px; color: var(--adc-blue); font-size: 26px; }

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(270px, 1fr));
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.card a {
  display: flex;
  flex-direction: column;
  gap: 4px;
  height: 100%;
  padding: 14px 18px 16px;
  border: 1px solid var(--line);
  border-left: 6px solid var(--adc-sky);
  border-radius: 0 4px 4px 0;
  background: var(--paper);
  color: var(--ink);
  text-decoration: none;
}
.card-live a { border-left-color: var(--adc-blue); }
.card a:hover { border-color: var(--adc-blue); background: var(--adc-sky-2); color: var(--ink); }
.card-name { color: var(--adc-blue-ink); font: 600 20px/1.25 var(--serif); }
.card-pages { color: var(--ink-2); font-size: 13px; }
.card-blurb { flex: 1 1 auto; margin-top: 4px; color: var(--ink-2); font-size: 14.5px; line-height: 1.45; }
.status { margin-top: 8px; color: var(--ink-2); font-size: 13px; font-weight: 600; }
.status-live { color: var(--adc-blue-ink); }

.coatings-band {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: var(--adc-sky-2);
}
.band-inner { max-width: var(--maxw); margin: 0 auto; padding: 36px var(--gutter) 40px; }
.coatings-band h2 { margin-bottom: 4px; }
.band-sub { margin: 0; color: var(--ink-2); font: italic 400 18px/1.4 var(--serif); }
.band-text { max-width: 70ch; }
.band-text p { margin: 8px 0 18px; }

.brand-text { max-width: 70ch; }
.brand-text p { margin: 0 0 18px; color: var(--ink-2); }
.brands {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}
.brands li {
  padding: 18px 10px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  color: var(--ink);
  font: 600 17px/1.25 var(--serif);
  text-align: center;
}

.contact-strip { background: var(--adc-blue); color: var(--paper); }
.strip-inner { max-width: var(--maxw); margin: 0 auto; padding: 32px var(--gutter) 30px; }
.contact-strip h2 { margin: 0 0 16px; color: var(--paper); font-size: 24px; }
.contact-strip dl {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 14px 28px;
  margin: 0;
}
.contact-strip dt { color: var(--adc-sky); font-size: 13px; font-weight: 600; }
.contact-strip dd { margin: 2px 0 0; font-size: 18px; font-weight: 600; }
.contact-strip a { color: var(--paper); }
.contact-strip a:hover { color: var(--adc-sky-2); }
.contact-strip :focus-visible { outline-color: var(--paper); }
.strip-link { display: inline-block; margin-top: 18px; font-weight: 600; }

/* ---- contact, catalog, search, 404 ----------------------------------------------- */

.contact-layout { display: grid; gap: 28px; padding-bottom: 56px; }
.contact-card {
  align-self: start;
  padding: 18px 20px;
  border-top: 5px solid var(--adc-blue);
  background: var(--adc-sky-2);
}
.contact-card address { font-style: normal; font-size: 17px; line-height: 1.5; }
.contact-card dl { margin: 12px 0 0; }
.contact-card dl div { padding: 8px 0; border-top: 1px solid var(--line); }
.contact-card dt { color: var(--ink-2); font-size: 13px; font-weight: 600; }
.contact-card dd { margin: 0; }

.prose > * { max-width: 72ch; }
.prose h2 { margin: 28px 0 8px; color: var(--adc-blue); font-size: 22px; }
.prose h2:first-child { margin-top: 0; }
.prose ul { padding-left: 1.2em; }
.prose li { margin: 4px 0; }

.catalog-table { padding-top: 8px; }
.catalog-table .tbl { max-height: none; }
.tbl-catalog tbody th a { text-decoration: none; }
.tbl-catalog tbody tr.coat th { border-left: 4px solid var(--adc-sky); }
.request { padding-top: 28px; padding-bottom: 56px; }
.request h2 { margin: 0 0 6px; color: var(--adc-blue); font-size: 22px; }

.search-page .search-box { max-width: 640px; }
.search-results { padding-top: 8px; }
.search-count { margin: 16px 0 8px; color: var(--ink-2); }
.search-results .tbl { max-height: none; }
.search-results tbody th a { text-decoration: none; }
.muted { color: var(--ink-2); font-weight: 400; }
.search-help { padding-bottom: 56px; color: var(--ink-2); font-size: 14px; }
.page-404 .prose { padding-bottom: 56px; }

/* ---- footer ------------------------------------------------------------------------ */

.site-footer {
  border-top: 4px solid var(--adc-blue);
  background: var(--paper-2);
  color: var(--ink-2);
  font-size: 14px;
}
.foot-inner {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 28px var(--gutter) 24px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 18px 32px;
}
.foot-co { font-style: normal; line-height: 1.5; }
.foot-co strong { color: var(--ink); }
.foot-reach { margin: 0; }
.foot-reach div { display: flex; gap: 10px; }
.foot-reach dt { min-width: 48px; font-weight: 600; }
.foot-reach dd { margin: 0; }
.foot-links { margin: 0; padding: 0; list-style: none; line-height: 1.7; }
.foot-stamp {
  grid-column: 1 / -1;
  display: flex;
  flex-wrap: wrap;
  gap: 4px 24px;
  margin: 4px 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--line);
  font-size: 13px;
}

/* ---- breakpoints ----------------------------------------------------------------------- */

@media (min-width: 900px) {
  .contact-layout { grid-template-columns: minmax(0, 1fr) 320px; }
  .contact-card { grid-column: 2; grid-row: 1; }
  .contact-layout .prose { grid-column: 1; grid-row: 1; }
}

@media (min-width: 1024px) {
  .site-header { position: sticky; top: 0; box-shadow: 0 1px 0 var(--line); }
  .section-layout {
    display: grid;
    grid-template-columns: 250px minmax(0, 1fr);
    gap: 40px;
    align-items: start;
  }
  .toc {
    position: sticky;
    top: calc(var(--hdr) + 16px);
    margin-top: 24px;
  }
  .toc ol { max-height: calc(100vh - var(--hdr) - 100px); }
}

@media (max-width: 760px) {
  :root { --gutter: 16px; }
  .bar { flex-wrap: wrap; gap: 10px 16px; padding-top: 12px; padding-bottom: 12px; }
  .brand img { width: 160px; }
  .reach { font-size: 13px; }
  .reach a:first-child { font-size: 16px; }
  .bar .search { order: 3; flex-basis: 100%; max-width: none; }
  .page-head h1, .section-head h1 { font-size: 28px; }
  .hero { padding: 12px var(--gutter) 0; }
  .hero-inner { padding: 28px 18px 24px; border-width: 4px; }
  .hero-logo { width: 260px; }
  .hero h1 { font-size: 30px; }
  .hero-sub { font-size: 18px; }
  .group-head h3 { font-size: 20px; }
  .tbl { max-height: none; }
  .cards { grid-template-columns: 1fr; }
  .brands { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .brands li { font-size: 15.5px; padding: 14px 8px; }
}

@media print {
  .site-header .search, .tabs, .toc, .skip, .legend, .search-help { display: none; }
  .site-header { position: static; }
  .tbl { max-height: none; overflow: visible; border: 0; }
  .tbl thead th { position: static; }
  .group { break-inside: avoid-page; }
  a { color: inherit; text-decoration: none; }
}

.sublabel { font: 600 15px/1.3 Inter, system-ui, sans-serif; color: var(--adc-blue-ink); margin: 14px 0 4px; }

.notice { background: #FFF6E5; border: 1px solid #F0D9A8; color: #5B4A1E; padding: 10px 14px; border-radius: 6px; font-size: 14px; margin: 8px 0 16px; }