Prompt
Create a minimalist vector-illustration composed for a 16:9 horizontal canvas with crop and framing locked to that ratio. Two geometric disks form the subject: one sun disk in the left third and one moon disk in the right third, each disk roughly one-eighth of the canvas height so they read as small, deliberate icons against the field. A thin vertical balance line crosses the exact center and links the two disks, while the central area remains visually neutral as negative space to emphasize the offset pair. The background fills the full frame with a subtle horizontal gradient from deep navy at the top to muted slate in the lower third, occupying the entire canvas without added texture. Use flat-color fills and crisp vector edges, sun rendered in warm gold with a simple radial halo and moon in cool pale blue with a single crescent cutout. Lighting is graphical with implied rim contrast only, no cast shadows, keeping separation between shapes and background. Maintain calm, symmetric rhythm and generous empty margins for poster or wallpaper use.
