.newsletter-preferences-container {
            max-width: 720px;
            margin: 2rem auto;
            background: #fff;
            border-radius: 8px;
            box-shadow: 0 2px 4px rgba(0,0,0,0.1);
            overflow: hidden;
        }
        
        .newsletter-preferences-header {
            background: #1a1a1a;
            color: #fff;
            padding: 2rem;
            text-align: center;
        }
        
        .newsletter-preferences-header h2 {
            margin: 0 0 0.5rem;
            color: #fff;
        }
        
        .newsletter-preferences-header p {
            margin: 0;
            opacity: 0.9;
        }
        
        .newsletter-form {
            padding: 2rem;
        }
        
        .newsletter-message {
            margin: 1rem 2rem;
            padding: 1rem;
            border-radius: 4px;
        }
        
        .newsletter-message-success {
            background: #d4edda;
            color: #155724;
            border: 1px solid #c3e6cb;
        }
        
        .newsletter-message-error {
            background: #f8d7da;
            color: #721c24;
            border: 1px solid #f5c6cb;
        }
        
        .form-section {
            margin-bottom: 2rem;
            padding-bottom: 2rem;
            border-bottom: 1px solid #e0e0e0;
        }
        
        .form-section:last-of-type {
            border-bottom: none;
        }
        
        .form-section h3 {
            margin: 0 0 1rem;
            color: #1a1a1a;
        }
        
        .form-group {
            margin-bottom: 1.5rem;
        }
        
        .form-group label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 500;
        }
        
        .form-control {
            width: 100%;
            padding: 0.75rem;
            border: 1px solid #ddd;
            border-radius: 4px;
            font-size: 1rem;
        }
        
        .preference-option {
            margin-bottom: 1.5rem;
        }
        
        .checkbox-label {
            display: flex;
            align-items: flex-start;
            cursor: pointer;
            position: relative;
            padding-left: 2rem;
        }
        
        .checkbox-label input[type="checkbox"] {
            position: absolute;
            opacity: 0;
        }
        
        .checkmark {
            position: absolute;
            top: 2px;
            left: 0;
            height: 20px;
            width: 20px;
            background-color: #f0f0f0;
            border: 2px solid #ddd;
            border-radius: 3px;
        }
        
        .checkbox-label:hover .checkmark {
            border-color: #8b0000;
        }
        
        .checkbox-label input:checked ~ .checkmark {
            background-color: #8b0000;
            border-color: #8b0000;
        }
        
        .checkmark:after {
            content: "";
            position: absolute;
            display: none;
            left: 6px;
            top: 2px;
            width: 5px;
            height: 10px;
            border: solid white;
            border-width: 0 2px 2px 0;
            transform: rotate(45deg);
        }
        
        .checkbox-label input:checked ~ .checkmark:after {
            display: block;
        }
        
        .tag-label {
            font-weight: 500;
            margin-bottom: 0.25rem;
        }
        
        .tag-description {
            margin: 0.5rem 0 0 2rem;
            font-size: 0.9rem;
            color: #666;
        }
        
        .form-actions {
            display: flex;
            gap: 1rem;
            margin-top: 2rem;
            padding-top: 2rem;
            border-top: 1px solid #e0e0e0;
        }
        
        .btn {
            padding: 0.75rem 2rem;
            border: none;
            border-radius: 4px;
            font-size: 1rem;
            font-weight: 500;
            cursor: pointer;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }
        
        .btn-primary {
            background: #8b0000;
            color: white;
        }
        
        .btn-primary:hover {
            background: #a00000;
        }
        
        .btn-secondary {
            background: transparent;
            color: #666;
            border: 1px solid #ddd;
        }
        
        .btn-secondary:hover {
            border-color: #999;
            color: #333;
        }
        
        .newsletter-error {
            max-width: 720px;
            margin: 2rem auto;
            padding: 2rem;
            background: #f8d7da;
            color: #721c24;
            border: 1px solid #f5c6cb;
            border-radius: 4px;
            text-align: center;
        }
        
        .newsletter-unsubscribed {
            padding: 2rem;
            text-align: center;
            color: #666;
        }
        
        @media (max-width: 768px) {
            .newsletter-preferences-container {
                margin: 1rem;
                border-radius: 0;
            }
            
            .form-actions {
                flex-direction: column;
            }
            
            .btn {
                width: 100%;
            }
        }