Create a single architectural blueprint sheet (white ink on blue background) for a small public library building. Include: a top-down floor plan with room labels (Lobby, Reading Hall, Children's Nook, Restrooms, Staff, Courtyard), at least two elevations, one section cut, a north arrow, a scale bar, and dimension strings. Use consistent line weights and drafting conventions. Add a title block in the lower-right that reads: 'RIVAL COMMUNITY LIBRARY' with date '2025-12-18'. All text must be crisp and correctly spelled.