Hello there. We are building a home office and a nursery and soundproofing has suddenly become a top priority, because thin hollow doors let every bit of noise through. I want interior doors that are solid enough to actually block sound between rooms without looking like industrial slabs. Style still matters, it has to fit a modern home. We are located in California. Has anyone found interior doors that genuinely help with noise and still look good? Trying to figure out what materials to even look for before I buy.