#invoice-form .is-invalid {
  border-color: #dc2626 !important;
  box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.12) !important;
  background: #fff7f7;
}

#invoice-form .service-grid.is-invalid {
  border: 1px solid #dc2626;
  border-radius: 14px;
  padding: 10px;
  background: #fff7f7;
}

#invoice-form .field-error {
  display: block;
  margin-top: 6px;
  color: #b91c1c;
  font-size: 12px;
  font-weight: 600;
}

#invoice-form [name="clientPostalCode"][data-loading="true"] {
  background-image: linear-gradient(90deg, transparent, rgba(109, 40, 217, 0.08), transparent);
  background-size: 200% 100%;
  animation: cep-loading 1s linear infinite;
}

@keyframes cep-loading {
  to { background-position: -200% 0; }
}