Brine Template Site Title Custom Font CSS

Site URL: https://erin-murray-wellness.squarespace.com/

Hi there, I'd like to change the font of my site title / header using CSS, the part that currently reads "Erin Murray Wellness". I've uploaded my custom font and am able to override h1/h2/image cards but can't figure out how to adjust the site title accordingly.

Thanks in advance!

URL: erin-murray-wellness.squarespace.com

PW: erin2022

Site Title uses these class

a.Header-branding, a.Mobile-bar-branding {
    font-family: ArticulatCF-Light !important;
}