3-tier architecture, network diagram, complex system, modern design, sleek lines, bright colors, digital background, abstract shapes, futuristic ambiance, neon lights, glow effects, detailed nodes, connections, routers, servers, databases, firewalls, switches, hubs, modems, cables, wires, circuit boards, metallic textures, glassy surfaces, futuristic fonts, 3D rendering, high-tech atmosphere, panoramic view, isometric perspective, soft focus, warm lighting.