Hi again @pilgrimteam, 🙂
This is standard design with our theme, I’m afraid. Changing this is considered customization work.
If you want to go further with the customization of your website, we advise that you hire a freelancer to do it for you.
To do some mobile-specific styling options, the best way to do it is using the media query, as you suggest it. Here you are the good one to use : @media (max-width: 992px){}.
Best,