/* ==========================================================================
   Header CSS
   Site header, desktop navigation, search, and mobile drawer behavior.
   ========================================================================== */

.site-header {
  position: relative;
  z-index: var(--z-header);
}

.utility-header {
  height: var(--utility-height);
  color: var(--color-white);
  background: var(--color-navy-deep);
}

.utility-header__inner {
  display: flex;
  height: 100%;
  min-height: var(--utility-height);
  align-items: center;
  justify-content: space-between;
  gap: var(--space-6);
}

.site-logo {
  display: flex;
  align-self: stretch;
  align-items: stretch;
  flex: 0 0 auto;
  height: 100%;
}

.site-logo__image {
  display: block;
  width: 150px;
  height: 100%;
  max-height: none;
  object-fit: contain;
}

.utility-header__actions {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.header-search {
  position: relative;
  display: flex;
  width: clamp(15rem, 22vw, 18rem);
  height: 44px;
  align-items: center;
  justify-content: flex-end;
}

.header-search__toggle,
.header-search__close {
  display: grid;
  width: 44px;
  height: 44px;
  flex: 0 0 44px;
  place-items: center;
  padding: 0;
  color: var(--color-white);
  background: transparent;
  cursor: pointer;
  transition:
    opacity var(--transition-base),
    visibility var(--transition-base);
}

.header-search__toggle img,
.header-search__close img {
  filter: brightness(0) invert(1);
}

.header-search.is-open .header-search__toggle {
  visibility: hidden;
  opacity: 0;
}

.header-search__form {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  gap: var(--space-1);
  overflow: hidden;
  visibility: hidden;
  opacity: 0;
  transition:
    opacity var(--transition-base),
    visibility var(--transition-base);
}

.header-search.is-open .header-search__form {
  visibility: visible;
  opacity: 1;
}

.header-search__input {
  min-width: 0;
  height: 42px;
  flex: 1 1 auto;
  padding: 0.55rem 0.85rem;
  color: var(--color-navy);
  background: var(--color-white);
  border: 2px solid transparent;
  border-radius: var(--radius-sm);
}

.header-search__input:focus {
  border-color: var(--color-accent);
  outline: 0;
}

.header-search__close {
  width: 40px;
  height: 40px;
  flex-basis: 40px;
}

.menu-toggle {
  display: none;
  min-width: 44px;
  min-height: 44px;
  place-items: center;
  padding: var(--space-2);
  background: transparent;
  cursor: pointer;
}

.menu-toggle img,
.mobile-menu__close img {
  filter: brightness(0) invert(1);
}

.main-nav {
  height: var(--nav-height);
  background: var(--header-background);
}

.main-nav .container {
  height: 100%;
}

.main-nav__list {
  display: flex;
  height: 100%;
  align-items: center;
  gap: var(--space-7);
}

.main-nav__item {
  position: relative;
  height: 100%;
}

.main-nav__item > a,
.main-nav__toggle {
  display: inline-flex;
  height: 100%;
  min-height: 44px;
  align-items: center;
  gap: var(--space-2);
  padding: 0.5rem 0;
  color: var(--color-navy);
  background: transparent;
  font-weight: var(--font-weight-semibold);
  text-decoration: none;
  cursor: pointer;
}

.main-nav__item > a:hover,
.main-nav__toggle:hover,
.main-nav__item > a.is-active,
.main-nav__toggle.is-active {
  color: var(--color-primary);
}

.main-nav__icon {
  flex: 0 0 auto;
  transition: transform var(--transition-base);
}

.main-nav__toggle[aria-expanded="true"] > .main-nav__icon {
  transform: rotate(180deg);
}

.main-nav__submenu-toggle[aria-expanded="true"] > .main-nav__icon--nested {
  transform: rotate(90deg);
}

.main-nav__submenu {
  position: absolute;
  inset-block-start: calc(100% + var(--space-2));
  inset-inline-start: 0;
  z-index: var(--z-menu);
  min-width: 270px;
  padding: var(--space-2);
  color: var(--color-navy);
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-dropdown);
}

.main-nav__submenu::before {
  position: absolute;
  inset-inline: 0;
  inset-block-end: 100%;
  height: var(--space-2);
  content: "";
}

.main-nav__submenu li {
  position: relative;
}

.main-nav__submenu a,
.main-nav__submenu-toggle {
  display: flex;
  width: 100%;
  min-height: 44px;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding: 0.65rem 0.85rem;
  color: var(--color-navy);
  background: transparent;
  border-radius: var(--radius-sm);
  text-align: start;
  text-decoration: none;
  cursor: pointer;
}

.main-nav__submenu a:hover,
.main-nav__submenu-toggle:hover {
  color: var(--color-primary);
  background: var(--color-surface);
}

.main-nav__submenu--nested {
  inset-block-start: calc(var(--space-2) * -1);
  inset-inline-start: calc(100% + var(--space-2));
  background: var(--color-neutral-50);
}

.main-nav__submenu--nested.is-left {
  inset-inline-end: calc(100% + var(--space-2));
  inset-inline-start: auto;
}

.mobile-menu {
  position: absolute;
  inset-block-start: 0;
  inset-inline-end: 0;
  z-index: var(--z-menu);
  width: min(90vw, 420px);
  height: 100vh;
  height: 100dvh;
  padding: var(--space-5);
  overflow-y: auto;
  color: var(--color-white);
  background: var(--color-navy-deep);
  box-shadow: var(--shadow-modal);
}

.mobile-menu__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: var(--space-5);
  border-bottom: 1px solid rgb(255 255 255 / 0.2);
}

.mobile-menu__title {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-bold);
}

.mobile-menu__close {
  display: grid;
  min-width: 44px;
  min-height: 44px;
  place-items: center;
  background: transparent;
  cursor: pointer;
}

.mobile-menu__list > li > a,
.mobile-menu__list > li > button {
  display: flex;
  width: 100%;
  min-height: 52px;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 0;
  color: var(--color-white);
  background: transparent;
  border-bottom: 1px solid rgb(255 255 255 / 0.15);
  text-align: start;
  text-decoration: none;
  cursor: pointer;
}

.mobile-menu__list a.is-active,
.mobile-menu__toggle.is-active {
  color: var(--color-accent);
}

.mobile-menu__icon {
  filter: brightness(0) invert(1);
  transition: transform var(--transition-base);
}

.mobile-menu__toggle[aria-expanded="true"] > .mobile-menu__icon {
  transform: rotate(180deg);
}

.mobile-menu__submenu {
  padding: var(--space-2) 0 var(--space-3) var(--space-4);
  border-bottom: 1px solid rgb(255 255 255 / 0.15);
}

.mobile-menu__submenu a,
.mobile-menu__submenu button {
  display: flex;
  width: 100%;
  min-height: 44px;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  padding: 0.55rem var(--space-2);
  color: rgb(255 255 255 / 0.92);
  background: transparent;
  text-align: start;
  text-decoration: none;
  cursor: pointer;
}

.mobile-menu__submenu--nested {
  padding-inline-start: var(--space-5);
  border: 0;
}

.mobile-menu__actions {
  display: grid;
  gap: var(--space-4);
  padding-top: var(--space-6);
}

.mobile-menu__actions .button {
  width: 100%;
}

.mobile-search {
  display: grid;
  width: 100%;
  grid-template-columns: minmax(0, 1fr) 44px;
  overflow: hidden;
  background: var(--color-white);
  border-radius: var(--radius-sm);
}

.mobile-search__input {
  min-width: 0;
  height: 46px;
  padding: 0.65rem 0.85rem;
  color: var(--color-navy);
  background: var(--color-white);
  border: 0;
}

.mobile-search__submit {
  display: grid;
  width: 44px;
  height: 46px;
  place-items: center;
  background: var(--color-surface);
  cursor: pointer;
}

.site-header a:focus-visible,
.site-header button:focus-visible {
  outline-color: var(--color-accent);
}

@media (max-width: 1023px) {
  :root {
    --utility-height: 4.5rem;
  }

  .utility-header__actions,
  .main-nav {
    display: none;
  }

  .menu-toggle {
    display: grid;
  }
}