.coupon-box {
    max-width: 346px;
    margin: 0 auto;
    padding: 20px;
    background: #ffffff;
    border-radius: 10px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
  }

  .coupon-input-group {
    display: flex;
    align-items: stretch;
  }

  .coupon-prefix {
    background-color: #f1f3f5;
    font-weight: 600;
    color: #555;
    border-radius: 12px 0 0 12px;
    display: flex;
    align-items: center;
    padding: 0 15px;
    font-size: 14px;
  }

  .coupon-input {
    flex: 1;
    border: none;
    height: 50px;
    font-size: 15px;
    /*padding: 0 10px;*/
    outline: none;
    background: cornsilk;
    width: 100%;
  }

  .coupon-btn {
    font-weight: bold;
    font-size: 14px;
    padding: 0 18px;
    height: 50px;
    border: none;
    cursor: pointer;
    white-space: nowrap;
  }

  .apply-btn {
    background-color: #28a745;
    color: white;
    border-radius: 0 12px 12px 0;
  }

  .remove-btn {
    background-color: red;
    color: white;
    border-radius: 0 12px 12px 0;
  }

  .coupon-message {
    margin-top: 15px;
    font-size: 15px;
    font-weight: 500;
    text-align: center;
  }

  .coupon-message.success {
    color: #28a745;
  }

  .coupon-message.error {
    color: #dc3545;
  }