A premium, minimal Certificate of Analysis document mockup for a luxury biotech brand. Clean white paper document on a soft off-white surface, showing an elegant analytical report layout with a subtle HPLC purity chromatogram graph, fine typographic data tables, a small QR code in the corner, and refined silver and deep indigo accents. Sophisticated, high-end, scientific but not clinical. Soft studio lighting, shallow depth of field, editorial product photography style.