.lbk-wrapper {
  max-width: 480px;
  margin: 0 0 20px 0;
  background: #fafafa;
  border: 1px solid #e5e5e5;
  border-radius: 8px;
  padding: 20px 24px;
}
.lbk-wrapper h6 {
  font-style: italic;
  text-transform: uppercase;
  font-size: 0.8em;
  color: #888;
  margin: 0 0 18px 0;
  letter-spacing: 0.5px;
}
.lbk-wrapper .config-row {
  display: flex;
  align-items: center;
  margin-bottom: 14px;
}
.lbk-wrapper .config-row label {
  width: 130px;
  flex-shrink: 0;
  font-size: 0.95em;
  color: #333;
}
.lbk-wrapper .config-row select {
  flex: 1;
  padding: 8px 10px;
  border: 1px solid #ccc;
  border-radius: 4px;
  background: #fff;
  font-size: 0.95em;
}
.lbk-wrapper .lbk-stepper {
  flex: 1;
  display: flex;
  align-items: stretch;
  gap: 4px;
}
.lbk-wrapper .lbk-stepper .lbk-field-box {
  flex: 1;
  display: flex;
  align-items: center;
  border: 1px solid #ccc;
  border-radius: 4px;
  background: #fff;
}
.lbk-wrapper .lbk-stepper input[type="number"] {
  border: none;
  text-align: center;
  width: 100%;
  padding: 8px 4px 8px 10px;
  font-size: 0.95em;
  background: transparent;
  -moz-appearance: textfield;
}
.lbk-wrapper .lbk-stepper input[type="number"]::-webkit-outer-spin-button,
.lbk-wrapper .lbk-stepper input[type="number"]::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}
.lbk-wrapper .lbk-oplage-label {
  color: #888;
  font-size: 0.9em;
  padding-right: 10px;
  white-space: nowrap;
}
.lbk-wrapper .lbk-stepper-buttons {
  display: flex;
  flex-direction: column;
  border: 1px solid #ccc;
  border-radius: 4px;
  overflow: hidden;
}
.lbk-wrapper .lbk-stepper-buttons button {
  width: 26px;
  height: 18px;
  border: none;
  border-bottom: 1px solid #999;
  background: #e2e2e2;
  color: #333;
  cursor: pointer;
  font-size: 0.95em;
  font-weight: bold;
  line-height: 1;
  padding: 0;
}
.lbk-wrapper .lbk-stepper-buttons button:last-child { border-bottom: none; }
.lbk-wrapper .lbk-stepper-buttons button:hover { background: #cfcfcf; }
.lbk-wrapper .lbk-stepper-buttons button:active { background: #b8b8b8; }

.lbk-wrapper .lbk-totaal-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-top: 18px;
  padding-top: 14px;
  border-top: 1px solid #e5e5e5;
}
.lbk-wrapper .lbk-totaal-label {
  font-size: 0.95em;
  color: #333;
}
.lbk-wrapper .prijs-display {
  color: #2a6496;
  font-size: 1.7em;
  font-weight: bold;
}
.lbk-wrapper .error-message {
  background: #f8d7da;
  color: #721c24;
  padding: 8px 12px;
  border-radius: 4px;
  margin-top: 12px;
  font-size: 0.9em;
  display: none;
}
@media (max-width: 600px) {
  .lbk-wrapper .config-row { flex-direction: column; align-items: flex-start; }
  .lbk-wrapper .config-row label { width: auto; margin-bottom: 4px; }
  .lbk-wrapper .config-row select,
  .lbk-wrapper .lbk-stepper { width: 100%; }
}