@media (max-width: 600px) {
  .views-exposed-form-content-inner {
    display: flex;
    flex-direction: column;
    gap: 0.75rem; /* optionaler Abstand */
  }

  .views-exposed-form-content-inner input[type="text"],
  .views-exposed-form-content-inner input[type="submit"] {
    width: 100%;
  }
}