#appPopup {
  display: none;
  position: fixed;
  z-index: 9999;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.6);
}

.popup-content {
  position: relative;
  background: #fff;
  width: 90%;
  max-width: 400px;
  margin: 10% auto;
  padding: 30px;
  border-radius: 12px;
  text-align: center;
  box-shadow: 0 0 20px rgba(0,0,0,0.3);
}

.popup-content img {
  max-width: 100px;
  margin-bottom: 20px;
}

.popup-content h2 {
  font-size: 22px;
  color: #333;
  margin-bottom: 10px;
}

.popup-content p {
  font-size: 16px;
  margin-bottom: 20px;
  color: #555;
}

.popup-buttons a {
  display: inline-block;
  margin: 5px 10px;
  padding: 10px 18px;
  border-radius: 8px;
  text-decoration: none;
  color: #fff;
  font-weight: bold;
  font-size: 14px;
}

.google-play {
  background: #34A853;
}

.app-store {
  background: #0070C9;
}

.cancel-btn {
  background: #888;
}

.close-popup {
  position: absolute;
  top: 10px;
  right: 15px;
  cursor: pointer;
  font-size: 20px;
  color: #888;
}