Photoreal Submarine in a Luxe Penthouse

Photorealistic interior scene of a luxury penthouse living room with floor-to-ceiling glass windows offering a moody city skyline at dusk. In the center sits a sleek, compact submarine on a shallow glass-backed pool that runs through the living space. The submarine is titanium-gray with a brushed metal hull, riveted seams, a small conning tower with a subtle periscope, and subtle weathering for realism. Warm ambient lighting from recessed ceiling fixtures and stylish lamps reflects off the water, creating rippling highlights on the hull. Surrounding decor includes white marble floors, a low glass coffee table, a plush charcoal sofa, minimal wood-and-metal console, and a glass railing balcony. Condensation on the pool surface, soft rain streaking the windows, and city lights shimmering in the water add depth. The scene should be cinematic, ultra-detailed, with hyper-real textures for metal, glass, water, and luxurious fabrics; ultra-high resolution, 8K quality, with shallow depth of field on the submarine and crisp architectural details in the background.