Mainframe building, futuristic, sleek design, glass facade, steel frame, modern cityscape, metropolitan area, skyscraper background, cloud computing concept, neon lights, LED displays, holographic projections, server rooms, data centers, complex circuitry, motherboard patterns, wires and cables, metallic texture, reflective surfaces, sharp angles, high-tech atmosphere, cinematic lighting, low-angle shot, 3/4 composition.