Envision an enchanting nail design inspired by the magical hues of a cascading aurora borealis. Start with a deep midnight blue base, capturing the vastness of a starry night sky. Gradually integrate whispers of shimmering green and violet across the nails, mimicking the dancing colors of a northern light spectacle. Accent with delicate silver foils that reflect light like the stars. The completed look exudes a blend of mystery and ethereal elegance, perfect for a night out under the stars.