Move copyright to bottom center in simple theme

[KKshop]

hello i’d like for my copyright to be moved all the way at the bottom in the center
this is my website https://www.intrnl.la/
password 11123

[suyash1]

@KKshop - add this css to the end of theme.scss

.sub-footer .grid__item{width: 100%;    text-align: center;}

[Nicer_Reefs]

I am using the Broadcast theme and do not have a theme.scss file.

The closest I have to that is theme.css but I tried pasting it there and it does not work.

Any Suggestions?