A fashionable young woman taking a mirror selfie while sitting on modern indoor stairs with soft warm LED strip lighting under each step. She is wearing a sleek black mini dress with thin straps and black high-heeled sandals. One leg is bent and elevated on the step, the other extended downward, creating a flattering, confident pose. She holds a smartphone in front of her face, partially covering it, capturing a clean influencer-style mirror shot. The setting is a minimalist, modern interior with beige tones, glass railing on the side, and symmetrical staircase design. Lighting is warm, ambient, and soft, creating a cozy luxury atmosphere with gentle shadows and glowing highlights. Shot in iPhone / smartphone style, vertical 1:1 or 4:5 composition, slightly wide lens feel. Natural skin texture, subtle glow, clean aesthetic, no heavy filters. Instagram influencer vibe, lifestyle + fashion content, elegant but casual. High detail, sharp focus, realistic proportions, soft reflections in the mirror, balanced exposure, warm color grading.
