Design a master bedroom within a natural ice cave structure located in Antarctica, using the ice formations as the primary material for the walls, floor, and ceiling. The room should feature a large, comfortable bed with nightstands on either side, each designed to harmonize with the icy surroundings. Include a spacious wardrobe for clothing storage, as well as a large, flat-screen television seamlessly embedded into one of the ice walls. The natural textures and translucency of the ice should be preserved, allowing light to interact subtly with the surfaces, creating a serene and calming atmosphere. The furniture and fixtures should be minimalist and modern, complementing the raw beauty of the cave while ensuring the bedroom remains functional, cozy, and luxurious.