.site-header {
  background:
    linear-gradient(180deg, #090d19, rgba(9, 13, 25, 0)),
    url('/img/stars-pattern.png') $neutral-10;

  &_no-stars {
    background: linear-gradient(180deg, #090d19, rgba(9, 13, 25, 0)) $neutral-10;
  }
}