transform the existing white model of a rectangular interior space measuring 16 00 meters in length 9 00 meters in width and 4 00 meters in height into an indoor pool hall of a european grand hotel completely remove the double door on the back wall and the double door on the left wall and replace them with continuous finished wall construction that matches the architectural treatment of the rest of the room so that no trace of door openings remains keep the three windows on the right wall as the only openings and allow them to be the sole source of natural daylight insert a large indoor swimming pool positioned off centre toward the right side of the room oriented lengthwise along the long dimension of the space the pool should be proportioned generously but must leave a continuous strip of floor along the entire left side of the room wide enough to comfortably accommodate luxury daybeds and unobstructed circulation this left side zone should read as a refined lounge promenade running parallel to the pool clearly distinct from the water area the pool basin interior must be clad entirely in dark cherry brown mosaic tiles with a deep rich tone and subtle gloss creating visual depth beneath calm clear water the water surface should be still and reflective the architectural language must evoke a refined european grand hotel in a neoclassical spirit closely inspired by the uploaded reference image the walls should be articulated with elegant classical panel mouldings and refined proportions finished in warm cream and ivory tones with subtle gold detailing introduce sophisticated cornices and a dignified well defined ceiling treatment that enhances height without introducing any artificial light fixtures the floor surrounding the pool and within the circulation strip should be polished marble featuring a geometric inlay pattern in warm tones such as cream beige dark brown and restrained gold accents echoing the luxurious yet balanced aesthetic of the reference materials should feel high end timeless and meticulously crafted with a harmonious contrast between light architectural surfaces and darker accents place a series of elegant daybeds along the left side strip aligned parallel to the pool upholstered in refined light neutral fabrics that complement the warm marble palette the atmosphere must feel serene grand and sophisticated illuminate the entire space exclusively with soft diffused natural daylight entering from the three windows on the right wall there must be no artificial lighting fixtures no chandeliers no sconces no ceiling lights and no visible light sources of any kind the final render should be highly realistic with refined textures balanced composition and a luxurious european grand hotel character