80s retro sci-fi background with sunrise or sunset. futuristic synth retro wave in 1980s posters

retro futuristic game abstract background 80s galaxy illustration vintage scifi sunset design mountain purple laser shiny computer vector 1980 grid wave neon future light night pink template planet trendy landscape electronic flyer space poster 90s vr digital virtual 1990s icon technology synth rave geometric sun party banner vibrant stars symbol