Fix navigation in the order shoppers get lost
Fix in the order a shopper encounters navigation. First, menu labels in the shopper's words, with bestseller collections one click away. Second, search that finds products by type, concern, and use, handles misspellings, and never dead-ends on no results. Third, collections built around shopper needs, named plainly, with a one-line description of who each collection is for. Fourth, a slim header that keeps menu, search, and cart reachable without covering content. Fifth, the mobile drawer pass, so a shopper can open, navigate, and close it with one thumb.
If navigation fails everywhere, the theme structure is the problem, and a template-level fix helps everywhere at once. If one collection or one search term fails while the rest work, that collection or that search configuration is the problem. If you want that diagnosis done for your store, the next step is a Shopify CRO audit or a discovery call, with scope and price agreed before any work starts.