.radio-popup {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0px;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: end;
  justify-content: center;
  z-index: 1000;
  animation: fadeIn 0.3s ease-in-out;
}

.radio-popup-content {
  background: url("https://stagecdn.brainbees.com/education/ie-app/stage/images/popup_bg.png") no-repeat center center;
  background-size: cover;
  border-radius: 16px 16px 0 0;
  width: 100%;
  padding: 16px;
  color: #fff;
  animation: scaleIn 0.3s ease-in-out;
}

/* (rest of your CSS here) */