MacSystemFont, 'Segoe UI', Roboto, Oxygen, sans-serif;
            background-color: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.5;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        
        .container {
            width: 90%;
            max-width: 1100px;
            margin: 0 auto;
            padding: 0;
        }
        
        header {
            padding: 4rem 0 2rem;
            text-align: cen