retro futuristic background with mountains. retrowave and synthwave style of mountain, sky and shooting stars.

1980s 80s 90s abstract background banner cyberpunk design digital disco fiction flyer future futuristic galaxy game glitch glow glowing graphic grid hill horizon horizontal illustration landscape laser light mountain mountains neon night pink poster purple retro retrowave sci science scifi shiny shooting sky star stars striped style sun sunset synthwave techno technology threedimensional topography vector vintage wave wireframe