3-tier client-server architecture, futuristic cityscape, skyscraper, modern building, complex network infrastructure, rows of servers, cables, routers, switches, firewalls, databases, cloud computing, virtual machines, thin clients, laptops, desktops, mobile devices, wifi signals, ethernet connections, secure login screens, coding windows, system administrators, IT professionals, futuristic lighting, neon glow, misty atmosphere, low-angle shot, cinematic composition, detailed textures, reflective surfaces.