.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  overflow: visible;
}

.site-header > .container-x {
  position: relative;
  z-index: 1002;
}

.main-navigation {
  position: relative;
}

.main-nav button.is-open,
.main-nav button.nav-page-active,
.main-nav a.nav-page-active {
  color: var(--primary);
}

.nav-chevron-open {
  transform: rotate(180deg);
}

.mega-menu {
  position: absolute;
  top: 100%;
  left: 50%;
  z-index: 1100;
  width: min(1120px, calc(100vw - 40px));
  transform: translateX(-50%) translateY(8px);
  border: 1px solid var(--border);
  background: var(--background);
  box-shadow: 0 28px 80px -46px rgba(5, 5, 5, 0.65);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 160ms ease, transform 160ms ease, visibility 160ms ease;
}

.mega-menu.is-open {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

.mega-menu-inner {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr)) minmax(220px, 0.9fr);
  gap: 1px;
  background: var(--border);
}

.mega-menu-solutions .mega-menu-inner,
.mega-menu-industries .mega-menu-inner,
.mega-menu-resources .mega-menu-inner {
  grid-template-columns: repeat(3, minmax(0, 1fr)) minmax(240px, 0.95fr);
}

.mega-menu-column {
  min-height: 296px;
  background: var(--background);
  padding: 26px 24px;
}

.mega-menu-title {
  margin: 0 0 12px;
  color: var(--primary);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.mega-menu-link {
  display: flex;
  min-height: 36px;
  align-items: center;
  justify-content: space-between;
  color: var(--foreground);
  font-size: 14px;
  font-weight: 700;
  line-height: 1.25;
}

.mega-menu-link:hover,
.mega-menu-link.nav-page-active {
  color: var(--primary);
}

.mega-menu-promo {
  display: flex;
  min-height: 296px;
  flex-direction: column;
  justify-content: space-between;
  background: var(--ink);
  color: #fff;
  padding: 26px 24px;
}

.mega-menu-promo span {
  max-width: 14rem;
  color: rgba(255, 255, 255, 0.78);
  font-size: 18px;
  font-weight: 800;
  line-height: 1.15;
}

.mega-menu-promo strong {
  display: inline-flex;
  color: var(--primary);
  font-size: 13px;
  font-weight: 800;
}

.mobile-nav-panel {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  z-index: 1050;
  max-height: calc(100vh - 64px);
  overflow-y: auto;
  border-top: 1px solid var(--border);
  background: var(--background);
  box-shadow: 0 24px 70px -48px rgba(5, 5, 5, 0.7);
  padding: 10px 20px 18px;
}

.mobile-nav-panel[hidden],
.mega-menu[hidden],
.mobile-nav-submenu[hidden] {
  display: none;
}

.mobile-nav-group,
.mobile-nav-direct {
  border-bottom: 1px solid var(--border);
}

.mobile-nav-accordion,
.mobile-nav-direct {
  display: flex;
  width: 100%;
  min-height: 48px;
  align-items: center;
  justify-content: space-between;
  color: var(--foreground);
  font-size: 14px;
  font-weight: 800;
  text-align: left;
}

.mobile-nav-accordion.is-open,
.mobile-nav-direct.nav-page-active {
  color: var(--primary);
}

.mobile-nav-chevron {
  transition: transform 160ms ease;
}

.mobile-nav-accordion.is-open .mobile-nav-chevron {
  transform: rotate(180deg);
}

.mobile-nav-submenu {
  display: grid;
  gap: 0;
  padding: 0 0 10px 14px;
  max-height: min(62vh, 680px);
  overflow-y: auto;
}

.mobile-nav-submenu a {
  display: flex;
  min-height: 40px;
  align-items: center;
  color: var(--muted-foreground);
  font-size: 14px;
  font-weight: 700;
}

.mobile-nav-submenu a:hover,
.mobile-nav-submenu a.nav-page-active {
  color: var(--primary);
}

body.nav-lock {
  overflow: hidden;
}

@media (min-width: 1280px) {
  .mobile-nav-panel {
    display: none;
  }
}

@media (max-width: 1279px) {
  .mega-menu {
    display: none;
  }
}

@media (max-width: 1380px) {
  .mega-menu {
    width: min(1040px, calc(100vw - 32px));
  }

  .mega-menu-inner {
    grid-template-columns: repeat(4, minmax(0, 1fr)) minmax(200px, 0.8fr);
  }

  .mega-menu-solutions .mega-menu-inner,
  .mega-menu-industries .mega-menu-inner,
  .mega-menu-resources .mega-menu-inner {
    grid-template-columns: repeat(3, minmax(0, 1fr)) minmax(220px, 0.9fr);
  }

  .mega-menu-column,
  .mega-menu-promo {
    padding: 22px 18px;
  }
}

@media (max-width: 479px) {
  .container-x {
    padding-left: 20px;
    padding-right: 20px;
  }
}