Futuristic underwater cityscape, featuring domed bioluminescent buildings with intricate glowing patterns, surrounded by diverse coral reefs in vivid colors. A lone humanoid diver in an advanced exosuit stands in the foreground, holding a glowing tablet, observing the vibrant marine life. Schools of fish of various sizes swim gracefully, interacting with the architecture. The scene is illuminated by soft beams of refracted sunlight penetrating the water surface, creating dynamic light streaks. The atmosphere is serene and immersive, with subtle particles suspended in the water to enhance depth and realism. Ultra- detailed textures, cinematic lighting, vivid bioluminescence, and a harmonious blend of nature and technology