Mégacité de Science-Fiction en Bleu Nuit

Cinematic matte deep-blue sci-fi wallpaper of a vast futuristic megacity at night, viewed from an elevated distant perspective across dark water and mist. Composition: the right half is dominated by immense vertical skyscraper silhouettes, needle spires, and dense black architecture with the tallest towers fading into low clouds; the left half opens into stormy blue-black negative space. Lighting and texture: light treated like paint, with stippled ember-orange windows and cold cyan glows dragged downward into vertical streaks, rain-slick reflections, and vertical smear artifacts. Atmosphere: heavy fog, slight defocus, subtle film grain, and soft bloom for a moody, painterly, dystopian concept-art aesthetic. Details: [6] flying aircraft trails, including [1 prominent sleek craft near the upper center banking toward the right with two pale contrails] and [5 small faint light streaks low along the left and center horizon]. Palette: restrained navy, midnight blue, pure black, muted violet, cold cyan, and sparse burnt orange accents. Constraints: no people, no readable text, no logos, no clean CGI finish.