/* Responsive Styles */
@media (max-width: 768px) {
  .container.features {
    max-width: 500px;
  }
  .how-to-use {
    max-width: 500px;
  }
  .row {
    flex-direction: column;
  }

  .col-md-6 {
    flex: 1 1 100%;
    margin-bottom: 1rem;
  }

  h1 {
    font-size: 1.75rem;
  }

  input[type="text"],
  input[type="number"],
  textarea {
    padding: 0.5rem;
    font-size: 0.9rem;
  }

  .submit-btn {
    padding: 0.5rem;
    font-size: 0.9rem;
  }
}

@media (max-width: 480px) {
  h1 {
    font-size: 1.5rem;
  }

  input[type="text"],
  input[type="number"],
  textarea {
    padding: 0.4rem;
    font-size: 0.85rem;
  }

  .submit-btn {
    padding: 0.4rem;
    font-size: 0.85rem;
  }
}