underwater base, Subnautica theme, futuristic architecture, transparent glass tunnel, bioluminescent plants, coral structures, modular compartments, observatory dome, moon pool, sea creatures, submarine dock, interior design, high-tech control panels, metal frame, exterior floodlights, soft blue ambient lighting, wide-angle shot, deep ocean, rocky seabed, kelp forest nearby, alien planet, survival game, resource management, exploration, serene atmosphere, artificial habitat, self-sustaining, solar panels, thermal power generators, emergency life pod, panoramic windows, reinforced hull, pressure-resistant materials.