Ok, I’ve been through every custom class, checked the containers and source code and I can not figure out why I get extra spacing on the two smallest breakpoints. SM & XS.
When I look at your site on my iPhone, or on my Mac, I am not seeing such large spaces?
What browser are you using?
I see “some” spaces, but for the most part, your site does not look, to me, like the pixs you posted?