IoT architecture, 4 stages, futuristic, modern, sleek, metallic, silver, blue lights, circuit boards, wires, microchips, sensors, gateways, cloud computing, edge devices, fog nodes, industrial setting, factory background, robotic arms, conveyor belts, assembly lines, high-tech atmosphere, detailed textures, neon lights, misty ambiance, cinematic composition, 3/4 view angle.