How can I buy Litecoin on Coinbase?

I'm interested in purchasing Litecoin, but I'm not sure how to do it on Coinbase. Can you guide me through the process step-by-step? I'd like to know what I need to do to set up an account, fund it, and then use that money to buy Litecoin. Also, are there any fees associated with the transaction, and how do I ensure the safety of my investment? Can you provide me with some tips on how to navigate the platform and make informed decisions about my investments?