Three-tier client-server architecture, modern office building, cityscape background, floor-to-ceiling windows, sleek wooden desks, ergonomic chairs, multiple monitors, CPU towers, routers, network cables, laptops, tablets, smartphones, cloud computing icons, virtual servers, database systems, application servers, web servers, firewalls, intrusion detection systems, complex network diagrams, blue and white color scheme, neon lights, futuristic ambiance, high-angle shot, shallow depth of field, sharp focus on central server.