Import simple_calendar gems CSS correctly on Rails 7 app generated with Bulma as CSS framework

I created a new Rails 7 app with rails new Project -d=postgresql --css bulma which sets up Bulma as the CSS framework. It creates application.bulma.scss where Bulma is imported with @import 'bulma/bulma;. I also set up the simple_calendar gem and render the month calendar inside one of my views. I put @import 'simple_calendar'; inside application.bulma.scss. This doesn't do the trick for getting simple calendars default CSS to apply correctly to the calendars. I would really appreciate any insight on what I can do to get simple calendars default CSS to work.