body {
    font-family: 'Inter', sans-serif;
    background-color: #f1e9e0;
    margin: 0;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 1rem;
  }

  .card {
    background: white;
    padding: 2rem;
    border-radius: 1rem;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    text-align: center;
    max-width: 400px;
    width: 100%;
  }

  .logo {
    max-height: 70px;
    margin-bottom: 1rem;
  }

  h2 {
    margin-bottom: 1rem;
    font-weight: 600;
  }

  input[type="text"] {
    width: 100%;
    padding: 0.75rem;
    margin: 1rem 0;
    border: 1px solid #ccc;
    border-radius: 0.5rem;
    font-size: 1rem;
  }

  button {
    width: 100%;
    background: #222;
    color: white;
    padding: 0.75rem;
    border: none;
    border-radius: 0.5rem;
    font-size: 1rem;
    cursor: pointer;
    transition: background 0.3s ease;
    position: relative;
  }

  button:disabled {
    background: #666;
    cursor: not-allowed;
  }

  .spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 2px solid white;
    border-top: 2px solid transparent;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    vertical-align: middle;
    margin-left: 10px;
  }

  @keyframes spin {
    to { transform: rotate(360deg); }
  }

  p#status {
    margin-top: 1rem;
    font-weight: 600;
    animation: fade 0.3s ease-in-out;
  }

  @keyframes fade {
    from { opacity: 0; transform: translateY(-5px); }
    to { opacity: 1; transform: translateY(0); }
  }

  .back-link {
    margin-top: 1.5rem;
    display: block;
    text-decoration: underline;
    color: #000;
  }

  @media (max-width: 480px) {
    .card {
      padding: 1.5rem;
    }

    h2 {
      font-size: 1.3rem;
    }
  }