To add Custom font to Login Popup, like this.
#1. First you need to upload font file to Custom CSS then get font file url.
#2. First, you need to install this code to Code Injection > Footer
#3. Use this code to top of Footer code
<x-twc-calidc-style style="display : none;">
@font-face {
font-family: 'Gotham Regular';
src: url(https://static1.squarespace.com/static/6672ecf757a5d945cabc3965/t/667cd600ab3a1e53ea8a43f6/1719457280881/GothamCond-Black.ttf)
}
.twc-calidc * {
font-family: 'Gotham Regular' !important;
}
</x-twc-calidc-style>
#4. Remember to update Font File URL + Font Family Name




