body {
    font-family: Arial;
    margin: 0;
}

header {
    background: #2c3e50;
    color: white;
    padding: 15px;
}

nav a {
    color: white;
    margin-right: 10px;
    display: inline-block;
    padding: 8px;
}

@media (max-width: 768px) {
    nav {
        display: flex;
        flex-direction: column;
        align-items: flex-start;
    }

        nav a {
            margin: 5px 0;
        }
}

.container {
    padding: 20px;
    max-width: 1000px;
    margin: auto;
}

@media (max-width: 768px) {
    .container {
        padding: 10px;
    }
}