<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 64 64">
  <defs>
    <linearGradient id="g" x1="10" y1="8" x2="56" y2="58" gradientUnits="userSpaceOnUse">
      <stop stop-color="#1f7a8c"/>
      <stop offset="1" stop-color="#53b3c0"/>
    </linearGradient>
  </defs>
  <rect width="64" height="64" rx="16" fill="url(#g)"/>
  <text x="32" y="39" text-anchor="middle" font-family="Arial, Helvetica, sans-serif" font-size="20" font-weight="700" fill="#fff">GC</text>
</svg>
