nav {
    background-color: var(--dark-blue);
    color: white;
    overflow: hidden;

    display: grid;
    grid-template-columns: 1fr;
    align-items: center;
    justify-items: center;

    height: 40px;
    width: 100%;
}

@media screen and (min-width: 800px) {
    nav {
        display: grid;
        grid-template-columns: 1fr;
        text-align: center;
        position: relative;
    }
}

.links {
    background-color: var(--dark-blue);
    color: white;
    width: 100%;
    position: absolute;
    top: 200px;
    margin: 0 auto;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s;
}

.links a {
    background-color: var(--dark-blue);
    color: #fff;
    text-decoration: none;
    display: block;
    padding: 15px 25px;
    border-bottom: thin dotted black;
    transition: background-color 0.3s, color 0.3s;
}

.links a:hover,
.links a.active {
    background-color: var(--dark-blue);
    text-decoration: underline;
}

nav .icon {
    text-align: center;
    font-size: 24px;
    cursor: pointer;
}

@media screen and (min-width: 800px) {
    nav .icon {
        display: none;
    }

    .links {
        position: relative;
        top: 0;
        max-height: inherit;
        box-shadow: none;
    }

    .links a {
        border: none;
        color: white;
        display: inline-block;
        margin: 0 1.5em;
    }

    .links a:hover {
        color: #fff;
    }

    nav {
        max-width: 100%;
        margin: 0 auto;
    }
}