/* subtle sticky bar + thin divider */
.bd-header { position: sticky; top: 0; z-index: 1000; background: var(--pst-color-background); }
.bd-header + .bd-header-article { border-bottom: 1px solid var(--pst-color-border); }

/* center menu items and tighten spacing */
.bd-header .navbar .navbar-nav { gap: 1.25rem; }

/* clean link style */
.bd-header .navbar .nav-link {
  padding: .35rem .3rem;
  color: var(--pst-color-text-muted);
  transition: color .15s ease;
}
.bd-header .navbar .nav-link:hover,
.bd-header .navbar .nav-link[aria-current="page"] {
  color: var(--pst-color-primary);
}

/* search field: slim + unobtrusive */
button.search-button-field, .bd-search .search-button__wrapper {
  border-radius: 999px !important;
  padding: .25rem .6rem !important;
  border: 1px solid var(--pst-color-border);
  box-shadow: none !important;
}

/* icon buttons on right */
.navbar .navbar-end-items .navbar-icon-links a {
  padding: .25rem;
  border-radius: 8px;
}
.navbar .navbar-end-items .navbar-icon-links a:hover {
  background: var(--pst-color-on-surface);
  opacity: .08;
}

/* reduce header height a touch on desktop */
@media (min-width: 992px){
  .bd-header .navbar { padding-top: .4rem; padding-bottom: .4rem; }
}