Vertical 9:16 premium cinematic political documentary poster background, inspired by a futuristic three-panel movie-poster layout: three tall diagonal slanted panels sweeping from top to bottom, each panel separated by glowing red-to-orange gradient light strips. Deep black and dark charcoal base, warm burnt-orange haze, soft smoky texture, subtle floating dust particles, faint elegant geometric contour lines and thin abstract light trails inside the panels, low-opacity refined graphic detailing, dramatic depth, clean empty spaces for three portrait subjects, powerful but not aggressive, modern Nepal political documentary mood. No people, no faces, no text, no flag, no logo, no watermark.