abstract cinematic dusk landscape background plate, no text, no people, no objects, deep violet to magenta to warm amber gradient sky, low soft mountain silhouettes layered in atmospheric haze, calm dark water surface at the bottom with faint horizontal light reflections, scattered soft bokeh light orbs floating in the air, gentle vignette at the edges, smooth film-like grain, painterly but clean, generous empty negative space on the left half for typography, high resolution, 8k, ultra clean composition, subtle depth of field