I need a design plan for a modern restaurant located in Nigeria. The restaurant interior area is approximately 20m × 40m (800m²). Single floor for 50-100 people. The restaurant should have a beautiful, modern, comfortable, and attractive design suitable for a family restaurant and casual dining. The layout should include a spacious dining area with comfortable tables and chairs, a well-designed reception/entrance area, a cashier/POS area, a fully functional kitchen, food preparation and service areas, storage space, staff area, and clean customer restrooms. I would also like a dedicated takeaway/food pickup area and a small waiting area for customers. The dining space should be arranged to accommodate a good number of customers while still maintaining comfortable movement and sufficient space between tables. Please provide a practical and attractive layout with good lighting, ventilation, modern ceiling design, stylish wall finishes, durable flooring, and an appealing color scheme. The design should create a warm and welcoming atmosphere while remaining easy to clean and maintain. The design should be modern, elegant, functional, and cost-effective, with good use of the available 20m × 40m space. Please provide a professional design and layout that can be used as a guide for construction and furnishing.