Newsletter form hover text colour change

Site URL: https://peachanddot.com/

Trying to change the text colour on my newsletter sign up form (in the footer) from black to white on hover.

I managed to style the rest of the buttons and forms, but no luck with this so far.

Anyone knows how to do this?

Add to Design > Custom CSS

/* newsletter black to white on hover */
.newsletter-form-header-description:hover * {
    color: white !important;
}