BLUEPRINT — ARCHITECTURAL ENGINEERING DRAWING

VISUAL STYLE: Engineering and architectural technical drawing. Not blueprint print — but the hand-drawn precision of a working drawing board. Pencil lines on cartridge paper. Set squares. Ruling pens. The draughtsman's art before digital tools.

COLOUR PALETTE: Warm off-white (#F4F1E8) cartridge paper ground. Hard pencil grey (#707070) for construction lines. Soft pencil dark (#2D2D2D) for finished lines. Warm sepia (#8B6B47) for notes and annotation. Red pencil (#CC2200) for revisions and corrections — the red of a senior engineer's pen.

DRAWING INSTRUMENTS: The tools are visible. Set square edges. Compass arcs. Scale rule tick marks. The traces of the instruments that made the drawing appear as part of the aesthetic — construction lines left in, compass holes at arc centres.

LINE QUALITY: The slight variation of a human hand drawing with a ruling pen. Not perfectly uniform — the ink thickens at the beginning of a stroke, fades as the pen lifts. This human trace is the quality.

NOTATION: Notes in technical lettering — the careful single-stroke capitals of engineering draughtsmanship. Dimensions with witness lines and arrows in the correct engineering style.

No photographs. No digital flatness. No computer-aided precision. The warmth of cartridge paper and the trace of a human hand throughout.