input.validation-invalid,
textarea.validation-invalid,
select.validation-invalid {
  border-color: #e65367;
  background-color: #fff4f6;
  box-shadow: 0 0 0 3px rgba(230,83,103,.13);
  animation: form-invalid-shake 360ms ease-in-out;
}

.field-validation-message {
  margin: 6px 0 0;
  color: #c63e52;
  font-size: 12px;
  font-weight: 700;
  line-height: 1.4;
}

@keyframes form-invalid-shake {
  0%,100% { transform: translateX(0); }
  20%,60% { transform: translateX(-6px); }
  40%,80% { transform: translateX(6px); }
}