body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f4f4f4;
}

header {
    background-color: #3c7ac0;
    color: #fff;
    padding: 10px 0;
    text-align: center;
}

.header-container {
    display: flex;
    align-items: center;
    justify-content: center;
}

.logo {
    max-height: 100px;
    margin-right: 15px;
}

header nav ul {
    list-style-type: none;
    padding: 0;
    margin: 0;
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
}

header nav ul li {
    margin: 0 15px;
}

header nav ul li a {
    color: #fff;
    text-decoration: none;
}

main {
    padding: 20px;
    max-width: 1200px;
    margin: 0 auto;
}

section {
    background-color: #fff;
    margin: 20px 0;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

section h2 {
    color: #3c7ac0;
}

pre {
    background-color: #f0f0f0;
    padding: 10px;
    border-radius: 4px;
    overflow-x: auto;
}

code {
    font-family: "Courier New", Courier, monospace;
    color: #d63384;
}

footer {
    background-color: #3c7ac0;
    color: #fff;
    text-align: center;
    padding: 10px 0;
    position: fixed;
    width: 100%;
    bottom: 0;
}

@media (max-width: 768px) {
    header nav ul li {
        margin: 5px;
    }

    main {
        padding: 10px;
    }

    section {
        padding: 15px;
        margin: 10px 0;
    }
}

@media (max-width: 480px) {
    header {
        padding: 5px 0;
    }

    header nav ul {
        flex-direction: column;
    }

    header nav ul li {
        margin: 5px 0;
    }

    section {
        padding: 10px;
    }
}