scinote-web/app/assets/stylesheets/navigation/navigator.scss

.sci--layout-navigation-navigator {
  .menu-item:not(.active):hover {
    background-color: var(--sn-super-light-grey);

    :not(.no-hover) {
      color: var(--sn-blue);
    }

    .no-hover {
      color: var(--sn-science-blue-hover);
    }
  }

  .menu-item.active:hover {
    :not(.no-hover) {
      color: var(--sn-blue);
    }

    .no-hover {
      color: var(--sn-science-blue-hover);
    }
  }

  .menu-item,
  .menu-item:not(.active):hover,
  .menu-item.active:hover {
    .disabled-link,
    .disabled-link:not(.no-hover):hover,
    .disabled-link.no-hover:hover {
      color: var(--sn-grey);
      pointer-events: none;
      text-decoration: none;
    }
  }
}