Imagine a sophisticated set of coffin nails exuding elegance with a glossy black base. Integrate delicate gold foil accents, cascading like whispers from the cuticle to midpoint, lending a luxurious touch. On alternating fingers, add a geometric pattern of angular lines in matte silver to contrast with the glossy finish. Finally, enhance the tips with a subtle holographic sheen, radiating an ethereal glow with every movement.