futuristic landscape at night. vivid colors like neon pink, purple. mountains with grid pattern on surface of water. retro tech

synthwave retro cyberpunk landscape background wallpaper banner rave vibrant techno abstract virtual futuristic sunset night blue music illustration arcade geometric design city computer 80s 80 wave 1980 90s old flier glow purple disco grid electronic mountain style technology neon artwork future game science fiction space sun party vintage light