Standard architectural drawing sizes, A1, A2, A3, A4, blueprints, technical drawings, precise lines, detailed scales, measurements, centimeters, inches, ruler edges, graph paper background, fluorescent lighting, office desk, architect's hands, pencil, eraser, protractor, T-square, modern office interior, wooden table, leather chair, plants on the shelf, morning sunlight filtering through the window, soft focus, shallow depth of field, realistic textures.