/* ==========================================================================
   EXODUS IA LAYER - v11
   Loaded AFTER css/exodus.css. Adds only the pieces the 18-page structure
   needs: breadcrumb, related-pages block, index-page secondary link row,
   grouped mobile sub-navigation, and the 5-column footer sitemap.

   Rules: existing tokens only, no new colours, no gradients, no !important,
   no raw hex, one shadow, hairlines, 8-12px radii, weight 500 headings.
   Writing rule: no en dashes, no em dashes, anywhere. Hyphens only.
   ========================================================================== */


/* --------------------------------------------------------------------------
   1. BREADCRUMB  .ia-crumbs .ia-crumbs__list .ia-crumbs__item .ia-crumbs__link
   Mono trail with hairline separators, sitting on a hairline rule.
   Markup: <nav class="ia-crumbs" aria-label="Breadcrumb"><ol>...</ol></nav>
   Last item carries aria-current="page" and is not a link.
   -------------------------------------------------------------------------- */
.ia-crumbs {
  padding-block: var(--space-md) 0;
}

.ia-crumbs__list {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: var(--space-2xs) var(--space-xs);
  list-style: none;
  margin: 0;
  padding: 0 0 var(--space-xs);
  border-bottom: var(--hairline);
  font-family: var(--font-mono);
  font-size: var(--t-mono-sm);
  line-height: 1.4;
  text-transform: uppercase;
  letter-spacing: var(--track-mono);
  color: var(--ink-3);
}

.ia-crumbs__item {
  display: inline-flex;
  align-items: baseline;
  gap: var(--space-2xs) var(--space-xs);
  margin: 0;
  max-width: none;
}

/* Hairline separator, drawn as a leading slash on every item after the first */
.ia-crumbs__item + .ia-crumbs__item::before {
  content: "/";
  color: var(--line-2);
  font-family: var(--font-mono);
}

.ia-crumbs__link {
  color: var(--ink-2);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.ia-crumbs__link:hover {
  color: var(--ink);
  border-bottom-color: var(--line-2);
}
.ia-crumbs__link:focus-visible {
  outline: 2px solid var(--violet);
  outline-offset: 3px;
  border-radius: var(--r-sm);
}

.ia-crumbs__item [aria-current="page"] {
  color: var(--ink);
}


/* --------------------------------------------------------------------------
   2. INDEX-PAGE SECONDARY LINK ROW
   .ia-subnav .ia-subnav__label .ia-subnav__row .ia-subnav__link
   Always-visible sub-navigation for work.html and solutions.html. No JS, no
   hover menu, nothing to trap a keyboard user.
   -------------------------------------------------------------------------- */
.ia-subnav {
  padding-block: var(--space-sm);
  border-bottom: var(--hairline);
}

.ia-subnav__label {
  margin: 0 0 var(--space-xs);
  font-family: var(--font-mono);
  font-size: var(--t-mono-sm);
  text-transform: uppercase;
  letter-spacing: var(--track-mono);
  color: var(--ink-3);
}

.ia-subnav__row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2xs);
  list-style: none;
  margin: 0;
  padding: 0;
}

.ia-subnav__row li {
  margin: 0;
  max-width: none;
}

.ia-subnav__link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2xs);
  padding: var(--space-2xs) var(--space-xs);
  border: var(--hairline);
  border-radius: var(--r-sm);
  background-color: var(--card);
  color: var(--ink-2);
  font-size: var(--t-sm);
  text-decoration: none;
  white-space: nowrap;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease),
              background-color var(--dur) var(--ease);
}
.ia-subnav__link:hover {
  color: var(--ink);
  border-color: var(--line-2);
  background-color: var(--paper-2);
}
.ia-subnav__link:focus-visible {
  outline: 2px solid var(--violet);
  outline-offset: 2px;
}
.ia-subnav__link[aria-current="page"] {
  color: var(--ink);
  border-color: var(--violet);
  background-color: var(--violet-soft);
}

.ia-subnav__num {
  font-family: var(--font-mono);
  font-size: var(--t-mono-sm);
  letter-spacing: var(--track-mono);
  color: var(--ink-3);
}
.ia-subnav__link:hover .ia-subnav__num,
.ia-subnav__link[aria-current="page"] .ia-subnav__num { color: var(--violet); }


/* --------------------------------------------------------------------------
   3. RELATED PAGES  .ia-related .ia-related__grid .ia-related__card
   .ia-related__kicker .ia-related__go
   Closing block of 2 to 3 cards. Reuses .ex-card styling. The last card is
   the "next" affordance so a reader can walk the set in order.
   -------------------------------------------------------------------------- */
.ia-related__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr));
  gap: var(--space-md);
  list-style: none;
  margin: 0;
  padding: 0;
}
.ia-related__grid > li {
  margin: 0;
  max-width: none;
  display: flex;
}

/* The whole card is the link */
a.ia-related__card {
  display: flex;
  flex-direction: column;
  gap: var(--space-2xs);
  width: 100%;
  color: var(--ink);
  text-decoration: none;
  transition: border-color var(--dur) var(--ease), background-color var(--dur) var(--ease);
}
a.ia-related__card:hover {
  border-color: var(--line-2);
  background-color: var(--paper-2);
  color: var(--ink);
}
a.ia-related__card:focus-visible {
  outline: 2px solid var(--violet);
  outline-offset: 3px;
}

.ia-related__kicker {
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--t-mono-sm);
  text-transform: uppercase;
  letter-spacing: var(--track-mono);
  color: var(--ink-3);
}

.ia-related__card .ex-card__title { margin: 0; }

.ia-related__go {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-xs);
  margin-top: auto;
  padding-top: var(--space-xs);
  border-top: var(--hairline);
  font-family: var(--font-mono);
  font-size: var(--t-mono-sm);
  text-transform: uppercase;
  letter-spacing: var(--track-mono);
  color: var(--ink-3);
}
a.ia-related__card:hover .ia-related__go { color: var(--ink-2); }

.ia-related__arrow {
  color: var(--violet);
  transition: transform var(--dur) var(--ease);
}
a.ia-related__card:hover .ia-related__arrow { transform: translateX(3px); }

/* The forward step in the sequence gets the violet edge */
a.ia-related__card--next {
  border-left: 2px solid var(--violet);
}
a.ia-related__card--next .ia-related__kicker { color: var(--violet); }

@media (prefers-reduced-motion: reduce) {
  .ia-related__arrow { transition: none; }
  a.ia-related__card:hover .ia-related__arrow { transform: none; }
}


/* --------------------------------------------------------------------------
   4. GROUPED MOBILE SUB-NAVIGATION  .ia-submenu .ia-submenu__title
   Nested inside the existing .ex-mobile-menu markup. Plain nested lists, so
   they are visible whenever the drawer is open and need no extra script.
   -------------------------------------------------------------------------- */
.ex-mobile-menu .ia-submenu {
  list-style: none;
  margin: 0;
  padding: 0 0 var(--space-2xs) var(--space-sm);
}
.ex-mobile-menu .ia-submenu li { margin: 0; max-width: none; }
.ex-mobile-menu .ia-submenu a {
  padding: var(--space-2xs) 0;
  border-bottom: 0;
  color: var(--ink-2);
  font-size: var(--t-sm);
}
.ex-mobile-menu .ia-submenu a:hover { color: var(--ink); }
.ex-mobile-menu .ia-submenu > li:last-child > a { border-bottom: var(--hairline); }


/* --------------------------------------------------------------------------
   5. FOOTER SITEMAP  .ex-footer__grid.ia-sitemap
   Brand + four link columns. Same tokens, same hairlines, one extra column.
   -------------------------------------------------------------------------- */
.ex-footer__grid.ia-sitemap {
  grid-template-columns: minmax(0, 1.3fr) repeat(4, minmax(0, 1fr));
  gap: var(--space-lg) var(--space-xl);
}

@media (max-width: 1080px) {
  .ex-footer__grid.ia-sitemap {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--space-lg);
  }
}

@media (max-width: 820px) {
  .ex-footer__grid.ia-sitemap { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 560px) {
  .ex-footer__grid.ia-sitemap { grid-template-columns: minmax(0, 1fr); }
}


/* --------------------------------------------------------------------------
   6. INDUSTRIES MEGA MENU  .ex-nav__group .ex-nav__caret .ex-nav__panel
   .ex-nav__panel-inner .ex-nav__col .ex-nav__col-title .ex-nav__menulink
   Opens on hover for a pointer and on focus for a keyboard, with no JS
   required for the visual. The trigger is still a real link to
   industries.html, so a tap on a touch device goes to the index instead of
   trapping the user in a menu that needs a second tap to dismiss.
   -------------------------------------------------------------------------- */
.ex-nav__group {
  position: static;
  display: flex;
  align-items: center;
}

.ex-nav__caret {
  display: inline-block;
  width: 0;
  height: 0;
  margin-left: 0.4em;
  border-left: 3.5px solid transparent;
  border-right: 3.5px solid transparent;
  border-top: 4px solid currentColor;
  vertical-align: 0.15em;
  transition: transform var(--dur) var(--ease);
}
.ex-nav__group:hover .ex-nav__caret,
.ex-nav__group:focus-within .ex-nav__caret { transform: rotate(180deg); }

.ex-nav__panel {
  position: absolute;
  top: calc(100% + 0.55rem);
  right: 0;
  z-index: 70;
  width: min(56rem, calc(100vw - 2 * var(--gutter)));
  padding: var(--space-md);
  border: var(--hairline);
  border-radius: var(--r-lg);
  background-color: var(--card);
  box-shadow: var(--shadow);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-4px);
  pointer-events: none;
  transition: opacity var(--dur) var(--ease), transform var(--dur) var(--ease),
              visibility var(--dur) var(--ease);
}
/* A hover bridge, so moving the pointer from the link into the panel across
   the gap does not close it. */
.ex-nav__panel::before {
  content: "";
  position: absolute;
  top: -0.65rem;
  left: 0;
  right: 0;
  height: 0.65rem;
}
.ex-nav__group:hover .ex-nav__panel,
.ex-nav__group:focus-within .ex-nav__panel {
  opacity: 1;
  visibility: visible;
  transform: none;
  pointer-events: auto;
}

.ex-nav__panel-inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 2fr);
  gap: var(--space-md) var(--space-lg);
}

.ex-nav__col-title {
  margin: 0 0 var(--space-2xs);
  padding-bottom: var(--space-3xs);
  border-bottom: var(--hairline);
  font-family: var(--font-mono);
  font-size: var(--t-mono-sm);
  text-transform: uppercase;
  letter-spacing: var(--track-mono);
  color: var(--ink-3);
}

.ex-nav__col ul {
  list-style: none;
  margin: 0;
  padding: 0;
}
.ex-nav__col--split ul {
  columns: 2;
  column-gap: var(--space-lg);
}
.ex-nav__col li { margin: 0; max-width: none; break-inside: avoid; }

.ex-nav__menulink {
  display: block;
  padding: 0.3rem 0.4rem;
  border-radius: var(--r-sm);
  color: var(--ink-2);
  font-size: var(--t-sm);
  line-height: 1.35;
  text-decoration: none;
  transition: color var(--dur) var(--ease), background-color var(--dur) var(--ease);
}
.ex-nav__menulink:hover {
  color: var(--ink);
  background-color: var(--paper-2);
}
.ex-nav__menulink:focus-visible {
  outline: 2px solid var(--violet);
  outline-offset: 1px;
}

.ex-nav__panel-foot {
  grid-column: 1 / -1;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-xs);
  margin-top: var(--space-2xs);
  padding-top: var(--space-xs);
  border-top: var(--hairline);
}
.ex-nav__panel-note {
  margin: 0;
  max-width: 48ch;
  color: var(--ink-3);
  font-size: var(--t-xs);
}

/* The drawer carries the same list below 1024px, so the panel never applies. */
@media (max-width: 1024px) {
  .ex-nav__panel { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  .ex-nav__panel,
  .ex-nav__caret { transition: none; }
}