How much is the fee for U.S. citizenship?

I'm curious, what is the current fee structure for obtaining U.S. citizenship? I understand that the process can be quite comprehensive and includes various steps, but I'm specifically interested in the financial aspect of it. Are there any upfront costs associated with filing the application, and if so, how much do they typically amount to? Additionally, are there any additional fees that one may encounter throughout the process, such as for biometrics, interviews, or any other requirements? It would be helpful to have a clear understanding of the total financial commitment required for this endeavor.