<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512">
  <defs>
    <linearGradient id="gold-gradient" x1="0%" y1="0%" x2="100%" y2="100%">
      <stop offset="0%" stop-color="#C9A961"/>
      <stop offset="100%" stop-color="#B8954D"/>
    </linearGradient>
  </defs>
  
  <!-- Main Container: Clean rounded square -->
  <rect x="16" y="16" width="480" height="480" rx="96" 
        fill="#0A1628" 
        stroke="url(#gold-gradient)" 
        stroke-width="12"/>
  
  <!-- Monogram: Balanced and breathable -->
  <text x="50%" y="48%" 
        dominant-baseline="central" 
        text-anchor="middle" 
        font-family="Georgia, 'Times New Roman', serif" 
        font-weight="bold" 
        font-size="240"
        fill="#C9A961">TN</text>
</svg>
