Standard size, A1, A2, A3, A4, architectural drawings, technical illustration, detailed lines, precise measurements, 2D, orthogonal projection, various scales, metric system, DIN standard, ISO standard, white background, grid paper texture, ruler-straight edges, sharp corners, minimal shading, clear labels, annotations, dimension arrows, section marks, architectural symbols, floor plan, elevation, cross-section, axonometric view, isometric view, one-point perspective, two-point perspective, three-point perspective.