* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: Arial, sans-serif;
    background-color: #FFD700;
    height: 100vh;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.header {
    background-color: #FFD700;
    padding: 20px;
    text-align: left;
    font-weight: bold;
    color: #333;
    border-bottom: 10px solid white;
}

.main-container {
    display: flex;
    flex: 1;
    min-height: 0;
}

.nav {
    background-color: #FFD700;
    width: 150px;
    padding: 20px;
    color: #333;
    font-weight: bold;
    border-right: 10px solid white;
}

.article {
    background-color: #FFD700;
    flex: 1;
    padding: 20px;
    color: #333;
    font-weight: bold;
    border-right: 10px solid white;
}

.ads {
    background-color: #FFD700;
    width: 150px;
    padding: 20px;
    color: #333;
    font-weight: bold;
}

.footer {
    background-color: #FFD700;
    padding: 20px;
    color: #333;
    font-weight: bold;
    border-top: 10px solid white;
}

/* Responsive Design */
@media screen and (max-width: 768px) {
    .main-container {
        flex-direction: column;
    }
    
    .nav {
        width: 100%;
        border-right: none;
        border-bottom: 10px solid white;
    }
    
    .article {
        border-right: none;
        border-bottom: 10px solid white;
    }
    
    .ads {
        width: 100%;
    }
}

@media screen and (max-width: 480px) {
    .header,
    .nav,
    .article,
    .footer,
    .ads {
        padding: 15px;
    }
    
    .header {
        font-size: 14px;
    }
    
    .nav,
    .article,
    .footer,
    .ads {
        font-size: 14px;
    }
}