Architect Cyanotype

Architect Cyanotype is the blueprint made into an interface: a deep Prussian-blue ground from which white drafting lines, grids, dimensions, and annotations reverse out. It descends from Sir John Herschel's 1842 iron-ferrocyanide process, which gave drafting offices a cheap way to copy drawings as white-on-blue.

Everything here is monospaced, orthogonal, and measured. Hairline white strokes draw cards and dividers; mono labels read like stencilled callouts; a faint grid governs every surface. The blue is the page — never inverted to white paper.

Architect Cyanotype 把建筑蓝图变成了界面：深普鲁士蓝作底，白色制图线、网格、尺寸与标注从蓝底中"反白"显现。它源自约翰·赫歇尔爵士 1842 年发明的铁氰化物蓝晒（cyanotype）工艺——当年制图所正是用它廉价地把图纸复制成"蓝底白线"。

这套系统里的一切都是等宽、正交、可度量的：极细白线勾出卡片与分隔线；等宽标签像钢印般的引注；淡淡的网格统御每一个表面。蓝色就是纸面本身——绝不反转成白纸蓝线。