3-tier network security architecture, futuristic, high-tech, corporate building, glass facade, cityscape, metropolitan area, modern infrastructure, complex system, firewalls, intrusion detection systems, encryption technologies, routers, switches, servers, data centers, cables, wires, circuit boards, sleek metal surfaces, neon lights, holographic displays, 3D projections, surveillance cameras, biometric scanners, fingerprint recognition, retinal scans, access control systems, alarm systems, backup power sources, climate control units, ventilation shafts, low-angle shot, symmetrical composition, cinematic lighting, futuristic ambiance.