Submerged Ancient Sandstone Stepwell Repurposed as Cyberpunk Mansion

A breathtaking architectural visualization of a massive, ancient Indian sandstone stepwell repurposed into an ultra-luxury, subterranean cyberpunk palace deep beneath a massive metropolis. The historic, weathered sandstone tiers remain intact, but are now integrated with sleek, matte black carbon fiber insertions and glowing neon-cyan fiber-optic light tracks. Towering structural glass panels form massive, pressurized aquarium walls, showcasing glowing, bioluminescent deep-sea fauna and ancient stone statues now covered in coral, surrounded by a complex network of illuminated glass walkways and floating obsidian platforms. Below, a geometric black basalt infinity pool filled with shimmering blue water and glowing lotus flowers serves as the main courtyard focus, integrated with a sunken conversation pit and an oxidized copper fire hearth. The interior features polished jade floors, floating minimalist marble furniture, and custom laser-engraved glass partitions. Deep, moody volumetric lighting and a perfect symmetrical composition define this cultural fusion masterpiece, completely textless and typography-free.