<svg width="512" height="512" viewBox="0 0 512 512" xmlns="http://www.w3.org/2000/svg">
  <!-- Fond blanc avec coins arrondis -->
  <rect width="512" height="512" rx="80" ry="80" fill="#ffffff"/>

  <!-- Monogramme AC -->
  <text x="256" y="310"
        text-anchor="middle"
        font-family="'Helvetica Neue', 'Inter', sans-serif"
        font-size="215"
        font-weight="700"
        fill="#000000"
        letter-spacing="-8">AC</text>

  <!-- Soulignement -->
  <line x1="95" y1="355" x2="417" y2="355"
        stroke="#000000"
        stroke-width="18"
        stroke-linecap="round"/>
</svg>
