Zero Trust Architecture, NIST guidelines, futuristic digital landscape, abstract circuitry background, glowing blue lines, intricate network diagrams, 3D holographic projections, sleek metallic surfaces, neon-lit cityscape at dusk, skyscraper, modern architecture, high-tech laboratory, cybersecurity expert, mature male, glasses, beard, white shirt, black tie, formal attire, standing in front of a massive screen display, hand on hip, confident posture, dramatic lighting, cinematic composition, shallow depth of field.