Product Title Font Change

Site URL: http://www.the-still-refinery.squarespace.com/?password=refinery

I am having a hard time forcing the custom font to change. Here's my site, products are under "shop"

http://www.the-still-refinery.squarespace.com/?password=refinery

This is the code I have been trying to use to get Poppins to appear but it is still showing up as "Carla"

.collection-type-products .grid-title {
    font-family: 'poppins'!important;
}
h1.ProductItem-details-title {
    font-size: 30px !important;
    font-family: poppins!important;
}

Try

#block-f133f710544252e1b1d3 h1 {
  font-family: Poppins !important;
}

Let me know how it works on your site