* {
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    overflow-x: hidden;
}

body {
    background-color: #eee;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
}

section {
    margin-top: 40px;
}

#navbar {
    background-color: white;
    border-bottom: 1px solid #333;
    text-align: left;
}

#navbar header {
    list-style: none;
    padding: 10px 30px;
    text-align: center;
    font-size: 1.4rem;
    background-color: lightgray;
    font-weight: 500;
}

#navbar li {
    border-top: 1px solid #333;
    list-style: none;
}

#navbar a {
    color: #333;
    text-decoration: none;
    display: block;
    padding: 10px 30px;
    font-size: 1.2rem;
    transition: text-indent 0.3s ease-in-out;
}

#navbar a:hover {
    background-color: #e6e6e6;
    font-weight: 500;
    text-indent: 5px;
}

h1 {
    text-align: center;
    margin: 40px auto;
}

section header {
    color: black;
    font-size: 1.8rem;
    text-align: center;
    margin-top: 40px;
    margin-bottom: 40px;
}

p {
    margin: 10px;
    color: #333;
}

section ul {
    margin-left: 50px;
    margin-top: 25px;
}

#main-doc {
    width: 100%;
    margin: 0 auto;
    line-height: 1.5;
}

code {
    display: block;
    text-align: left;
    white-space: pre-wrap;
    word-break: normal;
    word-wrap: normal;
    line-height: 1.5;
    background-color: white;
    padding: 0 15px;
    margin: 10px;
    border-radius: 10px;
}

h4 {
    text-align: center;
    margin-bottom: 25px;
}

section img {
    display: block;
    margin: 0 auto;
    border-radius: 10px;
}

footer {
    background-color: lightgray;
    text-align: center;
    font-size: 1.3rem;
    margin-top: 25px;
    padding: 5px;
}

span {
    color: black;
}

footer a {
    text-decoration: none;
    font-size: 1.2rem;
}

footer a:hover {
    font-weight: bold;
}

@media only screen and (min-width: 715px) {
    body {
        flex-direction: row;
    }

    #navbar {
        width: 300px;
        position: fixed;
        height: 100%;
    }

    #main-doc {
        margin-left: 330px;
    }

    section ul {
        margin-left: 100px;
    }

    footer {
        width: 100%;
        background-color: #eee;
    }
}