Using variables/properties in Sass?

I'm developing a SharePoint SPFx web part and starting to work on a property pane for it. I've realized that users may want to configure the line height of text in my webpart, and I'd like to make that configurable as a property using the https://docs.microsoft.com/en-us/sharepoint/dev/spfx/web-parts/basics/integrate-with-property-pane. I'm not sure how to access properties in an Sass file though, or if that's even possible? Is my only option to do this directly in the typescript code?