What are some nice non-religious ways of saying sorry to someone who just lost a loved one?

Usually people give their condolences by saying something like “you are in my prayers” or “I’m so sorry for your loss and I’m praying for you” but as an atheist, I honestly won’t pray for anyone and I think only saying “I’m sorry for your loss” sounds so boring. While I’m sure the person doesn’t really care what you say to them as long as it sounds sincere, I was wondering what are some other ways of saying/showing that you are truly sorry when someone you know has lost a loved one?