Footer widget spacing

Hello – firstly, I love this theme, thank you. I have managed to make most of the changes I need, nd have reviewed the posts on this forum, however I can’t work out how to make my 3 footer widgets equally spaced when at full width. They work well when viewed stacked, but when 3 across the spacing isn’t the same.

Do you have any suggestions as to how I can fix this?

Thank you