Organigramme d'Entreprise à Partir d'un Croquis

Convert the hand-drawn diagram from the reference image into a professional corporate flowchart suitable for a business presentation. Style: Minimalist McKinsey-style consulting aesthetic, clean lines, generous whitespace, and a sophisticated [blue and gray] color palette. Structure: Perfectly align all boxes, decision diamonds, and shapes to a strict grid. Connect elements using straight, orthogonal arrows with 90-degree angles and no curves. Typography: Replace all handwritten notes with clear, bold sans-serif text in [Arial or Roboto]. Output: High-resolution clean vector graphic on an isolated pure white background.