PHASE 1: VISUAL DECONSTRUCTION - **Fabric Physics:** The source garment is a metallic silk blend or tissue fabric (Chanderi/Banarasi style) with high specularity. Unlike the user's current matte cotton/spandex blend, this material exhibits anisotropic reflection (sheen changes based on viewing angle). The simulation must treat the fabric as semi-stiff with medium weight, meaning it will hold its own structure rather than clinging tightly to the skin. - **Key Features:** The intricate "Zari" (metallic thread) embroidery covering the chest and sleeves is the critical texture map; high-frequency details must be preserved without blurring. The vertical central placket/slit design, the embellished sleeve cuffs, and the specific iridescent quality of the greyish-brown base fabric must be retained. PHASE 2: FIT & DRAPE SIMULATION - **Body Mapping:** The current black top is a tight-fitting knit, whereas the source Kurta is a structured A-line cut. The virtual garment must bridge the gap between the user's bust and hips, creating a straighter silhouette rather than contouring under the bustline. The hemline should extend below the hips, likely covering the top portion of the jeans, changing the user's silhouette from "fitted" to "tunical." - **Occlusion Handling:** CRITICAL: The user is holding a phone with both hands directly in front of the center chest. A precise segmentation mask is required for the phone, both hands, and the handbag strap in the left hand. The Kurta's embroidery must be generated *behind* these elements, and the hands/phone must be layered *over* the new fabric. The user's long dark hair resting on the shoulders must also overlay the garment. PHASE 3: ENVIRONMENT & LIGHTING - **Light Match:** The user is in a retail environment with a grid of overhead cool-white LED track lights. This creates multiple distinct specular highlights. The source garment (photographed in warm studio light) must be color-graded to remove the warm yellow cast and adopt the cooler, slightly greenish tint of the store lighting. - **Color Calibration:** The metallic sheen of the Kurta needs to reflect the high-intensity overhead spots of the store. The shadows within the fabric folds should be sharp and distinct, matching the hard lighting conditions of the retail floor, rather than the soft diffuse shadows of the source image. PHASE 4: IDENTITY PROTECTION - **Facial Lock:** The user's entire head, including hair volume, facial expression, and neck skin tone, must remain frozen. The specific geometry of the hands holding the phone is strictly off-limits for alteration. - **Body Integrity:** The user's bodily volume (bust, waist, hips) must be used as the collision collider for the cloth simulation. Do not perform any "digital dieting" or slimming; the garment must drape naturally over her actual measurements, respecting the curve of the hip and the width of the shoulders.