Ready, Dee. **Replace everything in `sections/product-main.liquid` with the code below, then Save.** It keeps your gallery and adds an optional crystal choice to products in the **Beauty collection**. Crystal prices are additional; this doesn’t create a discount. Code validation and cart-request checks passed. After saving, test one beauty product plus one crystal and confirm both appear in your bag. Backup: :chatgpt-content-reference{index="0"}[product-main.liquid](sandbox:/workspace/scratch/b429d4b3bdf7/product-main.liquid) ```liquid