body {
    margin: 0;
    padding: 0;
    font-family: sans-serif;
    background: linear-gradient(to right, #b92b27, #1565c0)
  }
  
  .btn-login {
    font-size: 0.9rem;
    letter-spacing: 0.05rem;
    padding: 0.75rem 1rem;
  }