.wcbk-ext-root {
  border: 1px solid #ddd;
  padding: 12px;
  margin-top: 12px;
  background: #fafafa;
  border-radius: 8px;
}

.wcbk-ext-picker input[type="text"] {
  width: 100%;
  padding: 8px;
  border-radius: 6px;
  border: 1px solid #ccc;
}

#wcbk-ext-msg {
  margin-top: 6px;
  font-weight: bold;
}

.wcbk-cart-calendar {
  margin-top: 8px;
}

.wcbk-cart-cal {
  max-width: 100%;
}