html {
    --main-color: #0369a1;
    --secondary-color: #0284c7;
    --background-color: #374151;
    --text-color: white;
    --href-color: #38bdf8;
}

body {
    margin: 0;
    padding: 0;
    background-color: var(--background-color);
    color: var(--text-color);
    font-family: sans-serif;
}

nav {
    background-color: var(--main-color);
    color: var(--text-color);
    padding: 10px;
}

nav .nav-wrapper {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 800px;
    max-width: 100%;
    margin: 0 auto;
}

nav .nav-brand img {
    height: 30px;
}

nav .nav-links {
    display: flex;
    justify-content: flex-end;
    align-items: center;
}

nav .nav-links a {
    display: block;
    padding: 10px;
    color: var(--text-color);
    text-decoration: none;
    border-radius: 10px;
    margin-left: 5px;
}

nav .nav-links a.active {
    text-decoration: underline;
}

nav .nav-links a:hover {
    background-color: var(--secondary-color);
}

@media screen and (max-width: 800px) {
    nav .nav-wrapper {
        flex-direction: column;
    }

    nav .nav-brand img {
        height: 25px;
    }

    nav .nav-links {
        flex-direction: column;
    }

    nav .nav-links a {
        margin-left: 0;
        margin-top: 5px;
    }
}

main {
    width: 800px;
    margin: 50px auto;
    max-width: 95%;
    word-wrap: break-word;
}

main a {
    color: var(--href-color);
    text-decoration: underline;
}

footer {
    background-color: var(--main-color);
    color: var(--text-color);
    padding: 10px;
    text-align: center;
}