Soft Glowing Minimalist Abstract Background

minimal abstract background, large empty pure white rectangular center occupying most of the frame, soft diffused glowing border around the edges, cyan and aqua glow along the top and left edges blending into lime green and yellow-green glow along the right and bottom edges, blurred vignette effect, high-key brightness, smooth gradient haze, clean modern digital backdrop, no text, no objects, soft bloom, subtle feathered edges