.lab-site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: 22px;
  min-height: 72px;
  padding: 10px 18px 10px max(10px, env(safe-area-inset-left));
  color: #ffffff;
  background: rgba(11, 23, 69, 0.96);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.24);
}

.lab-site-header *,
.lab-site-header *::before,
.lab-site-header *::after {
  box-sizing: border-box;
}

.lab-site-header a {
  color: inherit;
  text-decoration: none;
}

.lab-site-brand {
  display: inline-flex;
  align-items: center;
  flex: 0 0 auto;
  width: clamp(150px, 16vw, 220px);
  min-width: 150px;
  max-width: none;
  margin-right: clamp(10px, 1.6vw, 22px);
  padding: 0;
  line-height: 0;
}

.lab-site-brand img {
  display: block;
  width: 100%;
  max-height: 46px;
  object-fit: contain;
}

.lab-mobile-nav-toggle {
  display: none;
  align-items: center;
  gap: 6px;
  min-height: 42px;
  padding: 8px 12px;
  color: #ffffff;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.26);
  border-radius: 8px;
  cursor: pointer;
}

.lab-mobile-nav-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  background: currentColor;
}

.lab-mobile-nav-toggle em {
  font-style: normal;
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.lab-site-header nav {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  flex: 1 1 auto;
  flex-wrap: wrap;
  gap: clamp(14px, 2vw, 26px);
  min-width: 0;
  overflow: visible;
}

.lab-site-header nav > a,
.lab-nav-dropdown-toggle {
  display: inline-flex;
  align-items: center;
  min-height: 42px;
  padding: 10px 2px;
  color: #ffffff;
  background: transparent;
  border-bottom: 2px solid transparent;
  border-radius: 6px;
  font-size: 0.92rem;
  font-weight: 800;
  line-height: 1.1;
  white-space: nowrap;
}

.lab-site-header nav > a:hover,
.lab-site-header nav > a:focus-visible,
.lab-nav-dropdown-toggle:hover,
.lab-nav-dropdown-toggle:focus-visible,
.lab-nav-dropdown.is-open > .lab-nav-dropdown-toggle {
  color: #ffffff;
  background: transparent;
  border-bottom-color: #f5b544;
  outline: none;
}

.lab-nav-dropdown {
  position: relative;
}

.lab-nav-dropdown-toggle::after {
  content: "";
  width: 6px;
  height: 6px;
  margin-left: 8px;
  border-right: 2px solid currentColor;
  border-bottom: 2px solid currentColor;
  opacity: 0.78;
  transform: translateY(-2px) rotate(45deg);
}

.lab-nav-dropdown-menu {
  position: absolute;
  left: 0;
  top: calc(100% + 10px);
  display: grid;
  gap: 6px;
  min-width: 330px;
  width: min(430px, calc(100vw - 32px));
  max-width: min(430px, calc(100vw - 32px));
  padding: 10px;
  color: #f8fbff;
  background: rgba(7, 19, 58, 0.98);
  border: 1px solid rgba(49, 168, 255, 0.7);
  border-radius: 8px;
  box-shadow: 0 18px 38px rgba(0, 0, 0, 0.32);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform: translateY(-6px);
  transition: opacity 180ms ease, transform 180ms ease;
}

.lab-nav-dropdown-wide .lab-nav-dropdown-menu,
.lab-nav-dropdown-menu.lab-nav-menu-offerings {
  width: min(460px, calc(100vw - 32px));
  max-width: min(460px, calc(100vw - 32px));
}

.lab-nav-dropdown-menu.lab-nav-dropdown-menu-case-studies {
  left: 0;
  right: auto;
  width: min(680px, calc(100vw - 32px));
  max-width: min(680px, calc(100vw - 32px));
}

.lab-nav-dropdown-menu.lab-nav-dropdown-menu-intelligence {
  width: min(520px, calc(100vw - 32px));
  max-width: min(520px, calc(100vw - 32px));
}

.lab-nav-dropdown-menu.lab-nav-dropdown-menu-about {
  left: auto;
  right: 0;
  width: min(340px, calc(100vw - 32px));
  max-width: min(340px, calc(100vw - 32px));
}

.lab-nav-dropdown:hover > .lab-nav-dropdown-menu,
.lab-nav-dropdown:focus-within > .lab-nav-dropdown-menu,
.lab-nav-dropdown.is-open > .lab-nav-dropdown-menu {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateY(0);
}

.lab-nav-menu-hierarchy {
  grid-template-columns: 1fr;
}

.lab-nav-dropdown-menu-case-studies {
  grid-template-columns: 1fr;
}

.lab-nav-menu-group {
  display: grid;
  gap: 6px;
  min-width: 0;
  padding: 8px;
  margin: 0;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 8px;
  background: rgba(5, 14, 42, 0.58);
  overflow: hidden;
}

.lab-nav-menu-section-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 40px;
  margin: 0;
  padding: 0 10px;
  color: rgba(245, 181, 68, 0.92);
  font-size: 0.72rem;
  font-weight: 950;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.lab-nav-menu-parent,
.lab-nav-menu-child {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  min-height: 42px;
  padding: 11px 12px 11px 16px;
  border: 1px solid rgba(49, 168, 255, 0.22);
  border-left-color: #f5b544;
  border-radius: 10px;
  color: rgba(255, 255, 255, 0.92);
  background: rgba(7, 19, 58, 0.38);
  font-size: 0.88rem;
  font-weight: 800;
  line-height: 1.15;
  transition: background 180ms ease, border-color 180ms ease, color 180ms ease, transform 180ms ease;
}

.lab-nav-menu-child {
  margin-left: 18px;
  padding-left: 14px;
  border-left-width: 3px;
  color: rgba(255, 255, 255, 0.84);
  background: rgba(7, 19, 58, 0.24);
}

.lab-nav-menu-parent {
  border-left-width: 6px;
  font-weight: 900;
}

.lab-nav-menu-child::before {
  position: absolute;
  left: -15px;
  top: 50%;
  width: 12px;
  height: 1px;
  content: "";
  background: rgba(245, 181, 68, 0.72);
}

.lab-nav-menu-parent:hover,
.lab-nav-menu-parent:focus-visible,
.lab-nav-menu-child:hover,
.lab-nav-menu-child:focus-visible {
  color: #ffffff;
  border-color: rgba(245, 181, 68, 0.76);
  background: linear-gradient(90deg, rgba(245, 181, 68, 0.18), rgba(31, 106, 229, 0.18));
  transform: translateX(2px);
  outline: none;
}

.lab-nav-menu-child em {
  flex: 0 0 auto;
  color: #07133a;
  background: #f5b544;
  border-radius: 999px;
  padding: 2px 7px;
  font-size: 0.64rem;
  font-style: normal;
  font-weight: 950;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.lab-nav-current {
  color: #ffffff;
  border-color: rgba(245, 181, 68, 0.95);
  background: linear-gradient(90deg, rgba(245, 181, 68, 0.24), rgba(31, 106, 229, 0.2));
  box-shadow: inset 0 0 0 1px rgba(245, 181, 68, 0.18);
}

.lab-nav-dropdown-toggle.lab-nav-current {
  color: #ffffff;
  padding-inline: 16px;
  background: rgba(31, 106, 229, 0.34);
  border: 1px solid rgba(245, 181, 68, 0.86);
  box-shadow: none;
}

@media (hover: hover) and (pointer: fine) and (min-width: 921px) {
  .lab-nav-dropdown-menu.lab-nav-dropdown-menu-case-studies .lab-nav-menu-group {
    grid-template-columns: repeat(2, minmax(230px, 1fr));
  }

  .lab-nav-dropdown-menu.lab-nav-dropdown-menu-case-studies .lab-nav-menu-section-title,
  .lab-nav-dropdown-menu.lab-nav-dropdown-menu-case-studies .lab-nav-menu-parent {
    grid-column: 1 / -1;
  }

  .lab-nav-dropdown-menu.lab-nav-dropdown-menu-intelligence .lab-nav-menu-group {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 920px), (hover: none), (pointer: coarse) {
  .lab-site-header {
    align-items: stretch;
    flex-wrap: wrap;
    padding: 10px 12px;
  }

  .lab-mobile-nav-toggle {
    display: inline-flex;
    margin-left: auto;
  }

  .lab-site-header nav {
    display: none;
    flex-basis: 100%;
    align-items: stretch;
    justify-content: flex-start;
    overflow-x: auto;
    padding: 8px 0 2px;
  }

  .lab-site-header.is-nav-open nav {
    display: grid;
    gap: 8px;
  }

  .lab-site-header nav > a,
  .lab-nav-dropdown-toggle {
    justify-content: space-between;
    width: 100%;
    background: rgba(255, 255, 255, 0.07);
    border: 0;
    border-radius: 8px;
    padding: 11px 12px;
  }

  .lab-nav-dropdown-menu,
  .lab-nav-dropdown-menu.lab-nav-menu-offerings,
  .lab-nav-dropdown-menu.lab-nav-dropdown-menu-case-studies,
  .lab-nav-dropdown-menu.lab-nav-dropdown-menu-about {
    position: static;
    display: none;
    width: 100%;
    min-width: 0;
    margin-top: 8px;
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: none;
  }

  .lab-nav-dropdown.is-open > .lab-nav-dropdown-menu {
    display: grid;
  }

  .lab-nav-menu-hierarchy,
  .lab-nav-dropdown-menu-case-studies {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .lab-site-header {
    padding-inline: 12px;
  }

  .lab-site-brand {
    max-width: min(210px, 56vw);
  }

  .lab-nav-dropdown-menu {
    padding: 10px;
  }
}