Endless fantasy library tower under a glowing violet sky

An infinite fantasy library tower spirals upward into a glowing violet and gold sky, its endless shelves overflowing with ancient books, pages drifting and glowing like fireflies in the air. Warm beams of light pour through stained-glass windows, illuminating floating staircases and rivers of golden dust suspended in the air. The atmosphere should feel magical, awe-inspiring and cinematic, with rich saturated colors and dramatic light beams cutting through the scene, composed as a vertical portrait image in a 3:4 ratio.