Abstract Blue Gradient Background with Bokeh Effect

abstract soft-focus blue gradient background, deep navy and midnight blue upper areas blending into vivid electric azure and cobalt glow near the lower left, large blurred amorphous shapes, smooth bokeh-like diffusion, subtle atmospheric haze, minimal composition with no defined subject, velvety digital texture, cinematic low-key lighting, dark moody ambience, high contrast between luminous blue glow and near-black shadows, clean modern abstract wallpaper