Create a futuristic spaceport concept featuring sleek, angular architecture primarily in shades of metallic silver and blue. The structures are elevated and include large, glass-enclosed observation decks. Remove any branding elements and replace the spaceship with a more unconventional design, such as a triangular-shaped spacecraft with smooth surfaces and glowing accents. Ensure the background has a vibrant celestial scene with multiple moons and stars, while incorporating distant mountain peaks shrouded in mist.