input.form-control {

  border-radius: 5px;
  padding: 0.425rem 0.75rem !important;
  border: 1px solid gray  !important;
}

input.form-control:focus {
  border-color: #3f51b5 !important; /* azul do tema Material */
  box-shadow: none !important;
}

input.form-control:hover {
  border: 1px solid #3f51b5 !important;
}