Comet Above the Underground City - 3D Render

Hyper-detailed 3D render of a colossal comet blazing through a translucent dome into an expansive underground city. Carved basalt caverns host neon-lit towers, glass corridors, and modular metal buildings connected by suspended transit tubes. The cavern ceiling is jagged with stalactites; steam vents and subterranean rivers weave between plazas, bridges, and canals. The comet's bright nucleus and icy tail cast cyan, amber, and violet highlights across wet stone, reflective surfaces, and holographic advertisements in alien script. Dust particles glow in volumetric light shafts as citizens in hi-tech attire bustle along cobbled plazas and gondola rails. A cinematic, wide-angle perspective from eye level near a bustling square, with dramatic depth, sharp details, and realistic textures for rock, metal, glass, and water.