Urban Digital Twin

Full style prompt

Visual Description: For city-scale systems — smart cities, logistics, traffic — a top-down, omniscient command view. Concept: an urban operating system in digital space. Tone: futuristic, detailed, structural, digital-twin, simulation. Perspective & materials: Perfect isometric projection, like a 3D CAD viewport. Ground: gridded digital floor; buildings pure white or translucent glass; mix matte white clay / maquette solids with wireframe layers. Color: Base Light Gray #F5F7FA or Dark Blue #0F172A (day / night); Neon Cyan #00E5FF for data, Amber #FFAB00 for warning. Color means function/status (normal / abnormal), not decoration. Type & density: Technical sans-serif (DIN-like), inorganic, system feel — large English titles, smaller user language; large Roman may use outline-only (hollow) strokes. Body: highly readable sans, small to raise information density. UI & labels: Corner overlays like 3D app chrome (axes, zoom, layer names); leader lines from roads/buildings to floating tags; thin floor grid for scale. Layout patterns: City overview isometric, colored zones, pop-up metrics; Layer / exploded underground / surface / air stacked; Building data — close-up, per-window heat for energy/vacancy; Traffic as light-particle flow, congestion pulsing red; Connectivity — parabolic comm arcs between towers; A/B split — current vs. future block; Construction — progress from wireframe skeleton to solid. Design rules: Realistic contact shadows (ambient occlusion) so buildings “sit” on the ground; subtle tilt-shift for miniature feel; no decorative color — semantic color only.