The default font used in cu.css is Inter by Rasmus Andersson. The font has been subset and the @font-face code generated using Google Webfonts Helper. This makes it easier to self-host Google Fonts and optimse for performance.
You can find the code inside assets/scss/abstracts/_fonts.scss.
/*
Google fonts with subsetting via Google Webfonts Helper
@link https://gwfh.mranftl.com/fonts/inter?subsets=latin
*/
@font-face {
font-display: swap;
/* Check https://developer.mozilla.org/en-US/docs/Web/CSS/@font-face/font-display for other options. */
font-family: 'Inter';
font-style: normal;
font-weight: 400;
src: url("../fonts/inter-v12-latin-regular.woff2") format("woff2"), url("../fonts/inter-v12-latin-regular.woff") format("woff");
/* Chrome 5+, Firefox 3.6+, IE 9+, Safari 5.1+ */ }
@font-face {
font-display: swap;
/* Check https://developer.mozilla.org/en-US/docs/Web/CSS/@font-face/font-display for other options. */
font-family: 'Inter';
font-style: normal;
font-weight: 700;
src: url("../fonts/inter-v12-latin-700.woff2") format("woff2"), url("../fonts/inter-v12-latin-700.woff") format("woff");
/* Chrome 5+, Firefox 3.6+, IE 9+, Safari 5.1+ */ }
You may wish to replace the generated code with a different font using Google Webfonts Helper, or remove this code entirely and use a system font stack instead.
When replacing the default fonts, you will also need to update the typography related custom properties found inside scss/abstracts/_theme.scss. For example, --font-base, and potentially --font-display and --font-accent.