Dark deep-sea scene inside a submarine engine room. Heavy steel pipes, hydraulic systems, gauges, valves. Warm yellow technical lighting contrasts with surrounding darkness. A symbolic glowing liquid flows through transparent hydraulic tubes — thick, clean, synthetic submarine oil. Pressure indicators showing extremely high depth. A submarine silhouette outside the window in the deep blue-black ocean. Atmosphere of massive pressure, silence, and cold. No characters, only machinery. Highly detailed, realistic, cinematic style See more