Does Coinbase charge a fee?

I'm curious about the cost structure of Coinbase, a popular cryptocurrency exchange platform. Could you elaborate on whether Coinbase charges a fee for its services? Are there any specific fees associated with buying, selling, or trading cryptocurrencies on the platform? If so, how are these fees calculated and what are the typical ranges? Additionally, are there any hidden costs or additional fees that users should be aware of? Understanding the cost structure is crucial for making informed decisions when using Coinbase, so I'd appreciate a detailed explanation.