html, body {
  height: 100%;
  margin: 0;
  background-color: lightgray;
}

#captcha-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(245, 245, 245, 0.8); /* Semi-transparent background */
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 9999;
}

#captcha-container {
  background: white;
  padding: 20px;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
  margin: auto;
}