What do you do when your kid questions faith?

My 12-year-old asked me why God let bad things happen if he loves us. I froze for a second because I don't have all the answers. Instead of pretending I did, I told him the truth - that I don't fully understand it either but I've seen God work through hard times. We're reading through some devotionals together and having real conversations instead of me just saying 'because the Bible says so.' Anyone else deal with this? I want to guide him spiritually without pushing him away from faith.