Title: Land, in Lines
Exact creative prompt: Design a self-contained fictional topographic survey tool named Contour Office. Use a narrow parchment sidebar with brutal clean typography beside a large sage-green canvas map. Draw organic nested contour lines with index contours, summit notation, a dotted trail, compass, scale and a rust marker. Include a contour interval slider and new-terrain button that meaningfully redraw the map. Use inline scripts, system fonts and no external resources; adapt gracefully to mobile.
Description: A calm cartographic workspace makes the abstract geography of an invented mountain feel like a carefully printed field survey.
Major visual techniques: Canvas contour drawing; muted map colors; fixed sidebar composition; hairline borders; geographic annotations; responsive stacking.
Interaction model: Change contour spacing with a slider or survey a new fictional terrain with the primary button.