Please enter a valid name: English letters only, each word should start with a capital letter (e.g., "John Smith").
Please enter a valid price: numbers only, with up to two decimal places (e.g., "49.99").
Please enter a valid category name: English letters only, each word should start with a capital letter (e.g., "Home Appliances").
Please enter a valid description using English letters, numbers, and basic punctuation only. Minimum 10 characters.