Create a panoramic background designed for a professional restaurant homepage, tailored for desktop display. The background should feature a solid black or deep ocean gradient as the base color. Incorporate unique and abstract butterfly designs with refined, elegant details. Use soft, muted tones with vibrant accents--such as orange, gold, teal, or complementary colors--harmonizing with the dark background. Position the butterflies around the edges and corners, ensuring the center remains open and minimalistic to accommodate a circular restaurant logo. The composition should feel sophisticated and exclusive, avoiding clutter and overly bright elements. Maintain a resolution suitable for a website homepage background, and use an aspect ratio of 16:9. --ar 16:9