How to buy acs Coinbase?

Excuse me, could you please clarify how one would go about purchasing ACS tokens on Coinbase? I've been trying to figure it out, but I'm a bit lost in the process. I'm a beginner in the cryptocurrency world, so any step-by-step guidance would be incredibly helpful. Is there a specific section on the Coinbase platform where I can locate ACS tokens for purchase? Or do I need to use a different exchange entirely? Additionally, are there any fees associated with buying ACS on Coinbase that I should be aware of? Thank you for your time and assistance.