As far as I checked in DevTools, the element containing 4 menu options has the justify-self: center property. This property will help the element be centered.
But if you still want to adjust the position of this element, you can do the following:
In Online store, select Themes → … → Edit code
In base.css, add the following code at the end of the file:
@media screen and (min-width: 990px) {
.header--top-center .header__inline-menu {
padding-left: 1px;
}
}
or the following code:
@media screen and (min-width: 990px) {
.header--top-center .header__inline-menu {
margin-left: 1px;
}
}
You can use 1px or any number you want
Click Save to save changes.
Hope my answer helps you.

