* {
    box-sizing: border-box;
}


body {
    margin: 0;
    padding: 0;
    background-color: #121212;
    color: #e0e0e0;
    font-family: Arial, Helvetica, sans-serif;
    font-size: 1em;
    line-height: 1.6;
    min-height: 100vh;  
}