.contact-form {
            background-color: white;
            border-radius: 10px;
            box-shadow: 0 0 20px rgba(0, 0, 0, 0.1);
            padding: 30px;
            margin-top: 50px;
            margin-bottom: 50px;
        }

        .captcha-container {
            background-color: #f8f9fa;
            border-radius: 5px;
            padding: 15px;
            margin-bottom: 20px;
        }

        .captcha-code {
            font-family: 'Courier New', monospace;
            font-size: 24px;
            font-weight: bold;
            letter-spacing: 5px;
            background: linear-gradient(45deg, #666, #333);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            user-select: none;
        }

        .btn-refresh {
            background: none;
            border: none;
            font-size: 20px;
            cursor: pointer;
        }

        .alert {
            border-radius: 5px;
        }