How do I contact Coinbase?

As a crypto enthusiast and investor, I'm interested in utilizing Coinbase for its secure and reliable platform. However, I'm encountering some difficulty in finding the appropriate means to reach out to their customer support team. Could you assist me in navigating the process of contacting Coinbase? I've tried searching their website for contact details, but the options seem limited. Perhaps there's a dedicated email address or a phone number I should be aware of? Additionally, is there a specific time frame within which I can expect a response? Your guidance in this matter would be greatly appreciated.