Futuristic oni mask with sleek, angular Iron Man-inspired design. Tight, clean lines and subtle recessed details rise 2mm. Metallic plating with cybernetic accents and etched circuitry glowing faintly. Matt black and white aesthetic with minimalist intimidation. Oni horns curve symmetrically, blending seamlessly into the mask. Ultra-modern, hyper-detailed, Unreal Engine 5 finish, sharp and precise contours, no excessive clutter, optimized for 3D rendering