How much does Coinbase pro cost?

Could you elaborate on the costs associated with using Coinbase Pro? I'm curious about the fees involved in transactions, deposit and withdrawal options, as well as any potential hidden costs that users might encounter. Is there a monthly or annual subscription fee? Are there any fees for maintaining a balance or for inactivity? Understanding the full financial picture of Coinbase Pro would greatly assist me in making an informed decision about whether or not to use this platform for my cryptocurrency transactions.