Modern access control system architecture, futuristic security hub, sleek metal framework, glass walls, minimalist interior design, rows of servers with blinking blue lights, complex network cables, large touchscreen display, administrator in a white shirt and black tie, standing with hands behind back, monitoring the system, subtle facial expression, fluorescent lighting, air conditioning vents, urban cityscape outside the windows, concrete floor, precise angles, 3/4 composition, high-tech ambiance.