Design a modern interior layout for a retail store that sells cell phone cases, computer peripherals (such as headphones), and other gadgets. The store has black shelves with phone cases displayed between the shelves and hanging on racks. There is a glass counter with two sections: a smaller one and a larger one, where the checkout is located. The counter will display various products, and behind the counter, there are racks on the wall for more phone cases. The layout should highlight the sleek and organized presentation of the products, while maintaining a minimalist and functional space