3-tier architecture diagram, technical illustration, modern digital design, simple clean lines, bright colors, computer network, servers, databases, web applications, routers, firewalls, clouds, virtual private networks, cables, wires, circuit boards, motherboards, CPU, RAM, GPU, blue and white color scheme, futuristic ambiance, high-tech feel, detailed textures, intricate structures, isometric view, 3D rendering, soft shadows, subtle lighting.