What is the Coinbase referral program?

Could you please elaborate on the Coinbase referral program? I'm curious to know how it works and what kind of incentives it offers. Specifically, I'd like to understand the referral process - how do users refer their friends or acquaintances? And what kind of rewards or benefits do both the referrer and the referred individual receive? Additionally, are there any terms or conditions that need to be met in order to qualify for the referral program? I'm also interested in knowing if there's a limit to the number of referrals one can make and if there are any restrictions on who can be referred. Thank you for your help in clarifying this.