body {
    margin: 0;
    padding: 0;
    
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    
    background-color: #f6eded;
    color: #222222;
    
    line-height: 1.6;
    
    transition: background-color 0.3s ease,
                color 0.3s ease;
}

body.dark {
    background-color: #121212;
    color: #f0f0f0;
}