Convert the provided interior scene into a precise 2D architectural floor plan (top view, orthographic projection). The drawing must look exactly like a professional AutoCAD architectural plan exported by an architect. STRICT REQUIREMENTS: - Pure top view only (no perspective, no 3D, no rendering) - Black and white monochrome CAD linework - Clean vector-style lines on white background - No shading, no textures, no artistic effects SPATIAL LAYOUT (must be accurately interpreted): - Central circular sunken seating area (main focal point) - Concentric stepped floor levels (curved steps around center) - Built-in curved sofa following the circular geometry - Loose armchairs arranged around the seating area - Round coffee tables at the center - Large circular rug defining the seating zone SURROUNDING ELEMENTS: - Elevated platforms/stages on both left and right sides - Decorative wall panels (represent as wall features or blocks) - Retail/display shelving area on the left side - Musical/stage setup area on the right side - Central arched entrance opening aligned with the main axis ARCHITECTURAL DETAILS: - Accurate wall thickness (solid poche walls) - Step levels shown using contour/step lines - Furniture drawn as proper CAD blocks (top view symbols) - Built-in seating thickness clearly represented - Doors and openings clearly defined COMPOSITION RULES: - Maintain symmetry based on the original scene - Center the circular seating zone in the plan - Align all elements proportion