How to unstake Gnosis?

Could you please elaborate on the process of unstaking Gnosis tokens? I understand that staking Gnosis is a way to participate in the network's governance and earn rewards, but I'm unsure about the steps involved in reversing this process. Is there a specific timeframe or conditions that need to be met before unstaking can occur? Additionally, are there any fees associated with the unstaking process, and how do they compare to the staking fees? Finally, can you provide a step-by-step guide on how to unstake Gnosis tokens safely and efficiently?