Customize text link color in Promo Pop Up

Site URL: https://www.legendarytravels.co

I have activated and designed my Promo Pop Up appearance as seen on my site linked above. But I need to change the color of the text link that reads "We respect your privacy, Adventurer" that is BELOW the sign up form and Subscribe button. This link directs the user to my Privacy Policy page in a new window.

The link text is defaulting to a dark color (used site wide) but I need it specifically to be a light color for callout over the background image.

My forum search led to this CSS code suggestion: .squarespace-popup-overlay a {color: red !important;}

This was asked and answered a while back. I tried inserting this code into Design > Custom CSS but it didn't change the link's color no matter what color name or hex I put into the code. I don't know if this CSS code is invalid or won't work as offered.  Of course, I tried to find a custom color setting in the usual Color adjustment control panel, but I found no listing that affected the text link color specifically for the Pop Up.

I'd appreciate a solution to this tricky request. Thanks!

4 hours ago, tuanphan said:

Add to Design > Custom CSS

.sqs-slice .form-disclaimer-text a {
    color: white !important;
}

 

That did it!  Thanks much.