#lt-popup {
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  background: rgba(0,0,0,0.6);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 9999;
}
#lt-popup.lt-hidden {
  display: none;
}
.lt-popup-content {
  background: #fff;
  padding: 25px;
  border-radius: 10px;
  text-align: center;
  width: 300px;
}
.lt-popup-content h3 {
  margin-bottom: 15px;
}
.lt-popup-content input {
  width: 100%;
  padding: 8px;
  margin-bottom: 15px;
  border: 1px solid #ccc;
  border-radius: 6px;
  text-align: center;
}
.lt-btn {
  background: #004CA9;
  color: #fff;
  border: none;
  padding: 8px 15px;
  border-radius: 6px;
  cursor: pointer;
}
.lt-cancel {
  background: #999;
  margin-left: 10px;
}
.lt-total-box {
  background: #f1f4ff;
  padding: 15px;
  border-radius: 8px;
  display: inline-block;
  font-size: 18px;
  color: #004CA9;
}