#screenWarning {
  display: none;          /* hidden by default */
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.85);
  z-index: 9999;

  justify-content: center;
  align-items: center;
}

.warning-content {
  background: #111;
  padding: 30px 40px;
  border-radius: 8px;
  text-align: center;
  color: #fff;
  font-family: Arial, sans-serif;
  max-width: 420px;
}

#continueBtn {
  margin-top: 20px;
  padding: 10px 24px;
  font-size: 15px;
  cursor: pointer;
}