Mockup de funda gris con logo para merch empresarial

Photo-real product mockup of a heather gray phone case with "merch empresarial" logo printed at large hero print. Mockup style: minimalist white background, sage + ivory logo palette. Studio-grade photography, sharp focus, natural fabric texture / mug ceramic / paper grain. Magazine-quality merch shot, no watermarks. Logo is generic placeholder typography — no real-brand marks. Realistic product proportions. Target search intent (rendered visually, no on-image text): "merch empresarial" (es).