design a new dental clinic floor plan inside the provided building shell use the attached drawing as a fixed architectural shell and redesign only the interior layout critical constraint do not alter the building shell do not change the exterior outline of the space in any way perimeter walls and all load bearing walls must remain untouched and fixed do not modify the building geometry facade contours curved walls structural boundaries or wall thicknesses the only allowed facade modification is convert the middle curved window into the new main entrance door convert the former entrance into a window aside from these opening changes the exterior envelope must remain exactly as in the original drawing functional zoning requirements 1 reception in the round room use the entire circular room as reception and waiting area approx 14 m reception desk waiting seating 2 main entrance only one entrance in the whole plan located at the middle opening in the curved facade no secondary or service entrances 3 main treatment room create one large treatment room 2 dental units chairs 21 28 m located along the facade with the two main windows occupies the full window frontage for natural light primary central room of the clinic 4 support rooms place these rooms only along the opposite solid wall in a linear row wc 3 m sterilization 6 m compressor technical 5 m staff room 6 m 5 corridor create a corridor between treatment room and support rooms all support rooms open into the corridor corridor connects reception operatory and service rooms required zoning concept strict linear organization curved front zone reception only entrance window facade main treatment room opposite wall row of support rooms between them corridor do not do do not alter the outer boundaries of the premises do not move or reshape structural load bearing walls do not redesign facade geometry do not place support rooms on the window facade do not add a second entrance drawing style use exactly the same architectural drafting style as the reference monochrome technical plan same hatch patterns same line weights same graphic language and furniture symbols goal redesign only the internal planning while keeping the original architectural shell completely intact