/* Shared header/navigation. Keep native, keyboard, print and forced-colour states together.
Loaded after the general design; component-specific rules below are intentional. */

/* Native navigation and no-JavaScript behaviour */
.site-header {
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: #fff;
}

.brand {
  display: block;
}

.brand img {
  object-fit: contain;
}

.site-navigation {
  display: flex;
  align-items: center;
}

.site-navigation a {
  text-decoration: none;
}

.site-navigation > a[aria-current="page"], .nav-submenu a[aria-current="page"] {
  text-decoration: underline;
}

.nav-dropdown {
  position: relative;
}

.nav-dropdown summary {
  list-style: none;
}

.nav-dropdown summary::-webkit-details-marker {
  display: none;
}

.nav-dropdown summary::marker {
  content: '';
}

.nav-submenu {
  position: absolute;
  left: -18px;
  top: 100%;
  background: #fff;
  line-height: 1.45;
}

.nav-submenu a {
  display: block;
}

.menu-toggle {
  display: none;
  color: var(--ink);
  background: transparent;
}

@media (max-width: 899px) {
  .js .menu-toggle {
    display: block;
    min-width: 44px;
    min-height: 44px;
    padding: 14px 8px;
  }

  .menu-icon, .menu-icon::before, .menu-icon::after {
    display: block;
    width: 27px;
    height: 2px;
    background: currentColor;
    position: relative;
  }

  .menu-icon::before, .menu-icon::after {
    content: '';
    position: absolute;
    left: 0;
  }

  .menu-icon::before {
    top: -8px;
  }

  .menu-icon::after {
    top: 8px;
  }

  .site-navigation {
    display: flex;
    width: 100%;
    align-items: stretch;
    flex-direction: column;
    padding: 10px 0 15px;
  }

  .js .site-navigation {
    display: none;
  }

  .js .site-navigation.is-open {
    display: flex;
  }

  .nav-submenu {
    position: static;
    min-width: 0;
  }

  .nav-apply {
    align-self: flex-start;
  }
}

/* Layout, controls and responsive states */
.site-header {
  position: sticky;
  top: 0;
  padding: 10px var(--site-gutter);
  min-height: 94px;
  border-bottom: 1px solid var(--line);
  gap: 25px;
}

.brand {
  flex-basis: 143px;
}

.brand img {
  width: 143px;
  height: 72px;
}

.site-navigation {
  gap: clamp(18px, 2.3vw, 35px);
  font-size: 12px;
}

.site-navigation > a:not(.button), .nav-dropdown > summary {
  padding-block: 18px;
  font-weight: 500;
}

.nav-dropdown > summary {
  display: flex;
  align-items: center;
  gap: 9px;
}

.nav-dropdown > summary::after {
  content: '';
  width: 5px;
  height: 5px;
  border-right: 1px solid;
  border-bottom: 1px solid;
  transform: rotate(45deg);
  margin-top: -3px;
}

.nav-dropdown[open] > summary::after {
  transform: rotate(225deg);
  margin-top: 3px;
}

.nav-dropdown.is-current > summary {
  text-decoration: underline;
  text-underline-offset: 5px;
}

.nav-submenu {
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 5px;
  min-width: 235px;
  max-height: calc(100dvh - 115px);
  overflow-y: auto;
  box-shadow: 0 12px 35px #00000010;
}

.nav-submenu a {
  padding: 10px 12px;
  border-radius: 3px;
}

.nav-submenu a:hover {
  background: var(--surface);
}

.nav-apply {
  margin-left: 0;
  padding: 13px 18px;
  font-size: 11px;
  min-height: 46px;
  gap: 12px;
}

.mobile-apply {
  display: none;
}

.site-navigation > .nav-search {
  display: flex;
  gap: 12px;
  align-items: center;
  justify-content: center;
  min-width: 32px;
}

.nav-search .icon {
  width: 18px;
  height: 18px;
  flex-basis: 18px;
}

.nav-search span {
  display: none;
}

@media (min-width: 1500px) {
  .site-header {
    padding-inline: max(var(--site-gutter), calc((100vw - 1220px) / 2));
  }
}

@media (max-width: 899px) {
  .site-header {
    min-height: 84px;
    padding-block: 6px;
    flex-wrap: wrap;
    gap: 8px;
  }

  .brand {
    flex-basis: 135px;
  }

  .brand img {
    width: 135px;
    height: 70px;
  }

  .mobile-apply {
    display: inline-flex;
    margin-left: auto;
    min-height: 44px;
    padding: 10px 12px;
    gap: 6px;
    font-size: 13px;
  }

  .mobile-apply .icon {
    width: 15px;
    height: 15px;
    flex-basis: 15px;
  }

  .menu-toggle {
    margin-left: 0;
  }

  .site-navigation {
    font-size: 16px;
    gap: 0;
    padding-inline: 8px;
    max-height: calc(100dvh - 115px);
    overflow-y: auto;
  }

  .site-navigation > a:not(.button), .nav-dropdown > summary {
    padding-block: 15px;
  }

  .nav-dropdown > summary {
    justify-content: space-between;
  }

  .nav-submenu {
    border: 0;
    box-shadow: none;
    padding: 0 5px 10px 13px;
    max-height: none;
    overflow: visible;
  }

  .nav-apply {
    margin-block: 10px;
  }

  .site-navigation > .nav-search {
    justify-content: flex-start;
  }

  .nav-search span {
    display: inline;
  }
}

@media (max-width: 767px) {
  .site-header {
    padding-inline: var(--site-gutter);
  }
}

@media (max-width: 370px) {
  .mobile-apply, .nav-apply {
    /* Preserve the small-screen control size previously inherited from .button. */
    font-size: 12px;
  }

  .mobile-apply .icon {
    display: none;
  }
}

@media (forced-colors: active) {
  .menu-icon, .menu-icon::before, .menu-icon::after {
    forced-color-adjust: none;
    background: ButtonText;
  }

  .brand img {
    forced-color-adjust: none;
    background: #fff;
    border-radius: 3px;
  }
}

@media print {
  .site-header {
    display: none !important;
  }
}

/* Control and focus colours */
.site-header {
  border-bottom-color: #e0e0e0;
  box-shadow: 0 2px 15px #4b4b4b05;
}

.site-navigation > a[aria-current], .nav-dropdown.is-current > summary {
  color: var(--teal);
}

/* The active contact link keeps readable button colours on its dark surface. */
.site-navigation > .button[aria-current] {
  color: #fff;
  text-decoration-color: currentColor;
}

.nav-submenu {
  border-color: #dadada;
  box-shadow: 0 12px 35px #3f3f3f13;
}

.nav-submenu a:hover, .nav-submenu a[aria-current] {
  background: var(--teal-pale);
  color: var(--teal-dark);
}

.nav-search:hover {
  color: var(--teal);
}

.menu-toggle {
  color: var(--teal-dark);
}

/* Brand accents */
.site-header { border-bottom: 3px solid #c1d8cb; }

.site-navigation > a[aria-current], .nav-dropdown.is-current > summary {
  text-decoration-color: #17675c;
}

/* Compact desktop spacing */
@media (min-width: 900px) {
  .site-navigation { gap: clamp(10px, 1.4vw, 22px); }

  .site-navigation > a, .nav-dropdown > summary { white-space: nowrap; }

  .nav-submenu a { white-space: normal; }
}

@media (min-width: 900px) and (max-width: 1050px) {
  .site-header { gap: 16px; }

  .site-navigation { font-size: 11px; gap: 11px; }

  .nav-dropdown > summary { gap: 6px; }

  .nav-apply { padding-inline: 12px; }
}