.form-container {
            background-color: #fff;
            padding: 30px;
            border-radius: 8px;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
            width: 100%;
            max-width: 400px;
            margin: 0 auto;
        }

        .form-group {
            margin-bottom: 20px;
        }

        .form-group label {
            display: block;
            margin-bottom: 8px;
            font-weight: 500;
        }

        .form-group input {
            width: 100%;
            padding: 10px;
            border: 1px solid #ddd;
            border-radius: 5px;
            font-size: 14px;
        }

        .form-group input:focus {
            outline: none;
            border-color: #dc3545;
        }

        .captcha-wrapper {
            background: #f8f9fa;
            padding: 15px;
            border-radius: 8px;
            text-align: center;
            margin-bottom: 15px;
            border: 1px solid #e0e0e0;
        }

        .captcha-code {
            font-family: 'Courier New', monospace;
            font-size: 28px;
            font-weight: bold;
            letter-spacing: 8px;
            background: #2c3e50;
            color: #fff;
            display: inline-block;
            padding: 10px 20px;
            border-radius: 8px;
            margin-bottom: 10px;
            user-select: none;
        }

        .captcha-refresh {
            background: #6c757d;
            color: white;
            border: none;
            padding: 5px 10px;
            border-radius: 5px;
            cursor: pointer;
            font-size: 12px;
            margin-right: 10px;
        }

        .captcha-refresh:hover {
            background: #5a6268;
        }

        .captcha-input {
            font-family: 'Courier New', monospace;
            font-size: 18px;
            text-align: center;
            letter-spacing: 2px;
        }

        .alert {
            padding: 10px;
            border-radius: 5px;
            margin-bottom: 20px;
            text-align: center;
        }

        .alert-success {
            color: #28a745;
            background: #d4edda;
            border: 1px solid #c3e6cb;
        }

        .alert-danger {
            color: #dc3545;
            background: #f8d7da;
            border: 1px solid #f5c6cb;
        }

        .alert-info {
            color: #17a2b8;
            background: #d1ecf1;
            border: 1px solid #bee5eb;
            text-align: left;
            word-break: break-all;
        }

        .btn-outline-danger {
            background: #dc3545;
            color: white;
            border: none;
            padding: 10px;
            border-radius: 5px;
            cursor: pointer;
            font-size: 16px;
        }

        .btn-outline-danger:hover {
            background: #c82333;
        }

        .text-center {
            text-align: center;
        }

        .mt-3 {
            margin-top: 15px;
        }

        .mb-4 {
            margin-bottom: 20px;
        }

        a {
            color: #dc3545;
            text-decoration: none;
        }

        a:hover {
            text-decoration: underline;
        }

        @media (max-width: 768px) {
            .form-container {
                padding: 20px;
                width: 95%;
            }
            
            .captcha-code {
                font-size: 20px;
                letter-spacing: 5px;
                padding: 5px 10px;
            }
        }