Elevator Zombie Reflection Horror

the prompt

Create an ultra-realistic Korean zombie-horror sequence inside an old apartment elevator at night. A woman in a long golden light-cream one-piece dress enters alone, carrying a shopping bag. The elevator stops between floors, the lights flicker, and the floor indicator glitches to 13. A dark figure appears only in the mirror, whose reflection slowly becomes infected with pale skin, milky eyes, and dark veins. The mirror cracks as an infected hand reaches through. The doors open to a nonexistent dark floor where infected silhouettes rush toward her. She barely escapes as the doors slam shut. When the elevator reaches the 12th floor, she exits—but her reflection stays behind, smiles, then suddenly lunges toward the camera.