body { font-family: Arial, sans-serif; margin: 20px; }
        form { width: 400px; margin: auto; border: 1px solid #ccc; padding: 15px; border-radius: 5px; }
        input, textarea { width: 100%; margin-bottom: 10px; padding: 8px; }
        button { padding: 10px; background: green; color: white; border: none; cursor: pointer; }
        .alert { padding: 10px; margin: 10px 0; border-radius: 4px; }
        .alert-success { background: #d4edda; color: #155724; }
        .alert-danger { background: #f8d7da; color: #721c24; }