form fieldset {
  background-color: #f8f9fa; /* gris clair */
}

form legend {
  font-weight: 600;
  font-size: 1.1rem;
}

form label {
  font-weight: 500;
}

form button {
  width: 100%;
  padding: 0.6rem;
  font-size: 1.1rem;
}
