#discount-btn {
  position: fixed;
  bottom: 20px;
  left: 20px;
  background: #593051;
  color: #fff;
  padding: 12px 18px;
  border-radius: 30px;
  cursor: pointer;
  font-weight: bold;
  z-index: 9999;
  box-shadow: 0 3px 6px rgba(0,0,0,0.3);
}

#discount-modal {
  display: none;
  position: fixed;
  z-index: 10000;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background: rgba(0,0,0,0.6);
}

#discount-modal .modal-content {
  background: #fff;
  margin: 10% auto;
  padding: 20px;
  width: 90%;
  max-width: 400px;
  border-radius: 10px;
  text-align: center;
  box-shadow: 0 4px 10px rgba(0,0,0,0.4);
}

#discount-modal input {
  width: 100%;
  margin: 8px 0;
  padding: 10px;
  border: 1px solid #ccc;
  border-radius: 5px;
}

#discount-modal button {
  background: #593051;
  color: #fff;
  border: none;
  padding: 10px 15px;
  border-radius: 5px;
  cursor: pointer;
  width: 100%;
  margin-top: 10px;
}

#discount-modal .close {
  float: right;
  font-size: 20px;
  cursor: pointer;
  color: #333;
}

#discount-modal .coupon-box {
  margin-top: 15px;
  padding: 15px;
  background: #fdf8ff;
  bo