.header {
  display: grid;
  background-color: var(--Main-Grey-White);
  position: relative;
  z-index: var(--header-z-index);
}

@media screen and (max-width: 950px) {
  .header {
    position: sticky;
    top: 0;
    z-index: var(--header-z-index);
  }
}