Abstract Blue Gradient Wallpaper

Create a simple abstract full-frame gradient wallpaper in a 16:9 landscape canvas. Use a smooth, soft-focus blue color field with no text, no objects, no visible shapes, and no borders. The composition should transition from very dark navy and near-black in the upper-left corner into saturated cobalt and royal blue across the center, then into brighter azure and electric blue toward the right side, with a pale icy blue glow near the lower-right area. Keep the gradient organic and slightly uneven, like a blurred luminous surface, with subtle diagonal movement from dark upper left to bright lower right. Use high resolution, clean digital rendering, minimal noise, and a polished modern tech aesthetic. Main palette: {argument name="dark corner color" default="near-black navy"}, {argument name="central blue" default="deep cobalt blue"}, and {argument name="bright glow color" default="pale icy azure"}.