Card layout blacking out on 990px and below

Hey everyone!

I have created a website that requires me to design cards that I have created with the use of columns. However, on 990px or lower, these cards black out, as if there was a dark overlay.
Could someone please help figure out what is happening?

I’ve attached a screenshot as well as the read-only link.

Thanks so much in advance :slight_smile:

Here is my site Read-Only: Webflow - GKU Academy