header {
  position: sticky;
  top: 0;
  z-index: 1101;
}

nav > .nav-group {
  position: relative;
  display: flex;
  align-items: center;
}

nav > .nav-group > a {
  font-size: 13px;
  text-decoration: none;
  color: #fffc;
  padding: 27px 0;
  border-bottom: 2px solid transparent;
}

nav > .nav-group > a.active {
  color: #fff;
  border-color: var(--g);
}

.nav-dropdown-toggle {
  display: inline-grid;
  place-items: center;
  width: 28px;
  height: 32px;
  margin-left: 5px;
  padding: 0;
  border: 0;
  border-radius: 4px;
  background: transparent;
  color: #fffc;
  font: inherit;
  cursor: pointer;
}

.nav-dropdown-toggle:hover,
.nav-dropdown-toggle:focus-visible,
.nav-group.is-open .nav-dropdown-toggle {
  background: #ffffff18;
  color: var(--g);
}

.nav-dropdown-toggle span {
  display: block;
  transition: transform 180ms ease;
}

.nav-group.is-open .nav-dropdown-toggle span {
  transform: rotate(180deg);
}

.nav-submenu {
  display: none;
  position: absolute;
  z-index: 1200;
  top: 100%;
  left: -16px;
  min-width: 270px;
  padding: 8px;
  background: var(--n);
  box-shadow: 0 12px 30px #0004;
}

.nav-group:hover .nav-submenu,
.nav-group:focus-within:not(.is-closed) .nav-submenu,
.nav-group.is-open .nav-submenu {
  display: block;
}

.nav-submenu a {
  display: block;
  padding: 10px 12px;
  color: #fff;
  font-size: 13px;
  line-height: 1.45;
  text-decoration: none;
}

.nav-submenu a:hover,
.nav-submenu a:focus-visible {
  background: #ffffff18;
  color: var(--g);
}

@media (max-width: 1000px) {
  header.open nav > .nav-group {
    display: block;
    width: 100%;
  }

  header.open nav > .nav-group > a {
    display: inline-block;
    width: calc(100% - 38px);
    padding: 10px 0;
    line-height: 1.5;
  }

  header.open nav > .nav-group > .nav-dropdown-toggle {
    width: 34px;
    height: 36px;
    vertical-align: middle;
  }

  header.open nav > .nav-group > .nav-submenu {
    display: none;
    position: static;
    min-width: 0;
    padding: 0 0 4px 12px;
    box-shadow: none;
  }

  header.open nav > .nav-group.is-open > .nav-submenu {
    display: block;
  }

  header.open nav > .nav-group > .nav-submenu a {
    padding: 9px 12px;
    border-left: 2px solid var(--g);
  }

  header,
  header .brand > span,
  header .brand b,
  header .brand small,
  header .menu {
    transition: height 180ms ease, padding 180ms ease, font-size 180ms ease;
  }

  header.compact {
    height: 64px;
  }

  header.compact .brand > span {
    padding: 4px 6px;
  }

  header.compact .brand b {
    font-size: 12px;
  }

  header.compact .brand small {
    font-size: 7px;
  }

  header.compact .menu {
    font-size: 21px;
  }

  header.compact.open nav {
    top: 64px;
    max-height: calc(100vh - 64px);
    max-height: calc(100dvh - 64px);
  }
}


/* Desktop: reveal projects only on hover; mobile keeps an explicit tap target. */
@media (min-width: 1001px) {
  .nav-dropdown-toggle { display: none; }
}

@media (max-width: 1000px) {
  .nav-dropdown-toggle { display: inline-grid; }
}


/* Show a clear submenu cue beside New Launches and highlight desktop nav links on hover. */
#site-navigation > a,
#site-navigation > .nav-group > a,
#site-navigation > .langs a {
  transition: color 160ms ease, border-color 160ms ease;
}
#site-navigation > a:hover,
#site-navigation > .nav-group > a:hover,
#site-navigation > .langs a:hover,
#site-navigation > a:focus-visible,
#site-navigation > .nav-group > a:focus-visible,
#site-navigation > .langs a:focus-visible {
  color: var(--g);
}
@media (min-width: 1001px) {
  .nav-dropdown-toggle {
    display: inline-grid;
    width: 18px;
    margin-left: 2px;
  }
}
@media (max-width: 1000px) {
  header.open nav > .nav-group > a {
    width: auto;
  }
  header.open nav > .nav-group > .nav-dropdown-toggle {
    width: 22px;
    margin-left: 2px;
  }
}


/* Refine the desktop header: slimmer bar and baseline-aligned submenu chevron. */
@media (min-width: 1001px) {
  header {
    height: 72px;
  }
  #site-navigation > a,
  #site-navigation > .nav-group > a {
    padding-top: 20px;
    padding-bottom: 20px;
  }
  #site-navigation > .nav-group > .nav-dropdown-toggle {
    width: 14px;
    height: 22px;
    margin-left: 3px;
  }
  #site-navigation > .nav-group > .nav-dropdown-toggle span {
    position: relative;
    top: -2px;
  }
}