Futuristic building, high-tech headquarters, sleek modern design, metallic exterior, silver-gray walls, angular lines, towering skyscraper, cityscape background, sunset lighting, dramatic shadows, advanced security systems, biometric scanners, retinal recognition, fingerprint authentication, AI-powered surveillance cameras, reinforced doors, bulletproof glass, alarm systems, motion detectors, intelligent access control, futuristic elevators, high-security data centers, backup power generators, robust communication networks, advanced encryption protocols, sophisticated threat detection algorithms.