html,
body {
    height: 100%;
}

.app-container {
    margin: auto;
    display: grid;
    grid-column-gap: 10px;
    grid-row-gap: 10px;
    min-height: 100%;
}

.content-container {
    grid-area: content;
    display: grid;
    grid-template-columns: auto;
    grid-template-rows: 200px auto;
    grid-template-areas:
        "title"
        "main";
}

.content-container article,
.content-block section {
    border-left: 1px solid #003b71;
}

.content-block {
    grid-area: content;
}

/* mobile */
@media only screen and (max-width: 767px) {
    .app-container {
        grid-template-columns: auto;
        grid-template-rows: 100px auto auto auto 70px;
        grid-template-areas: "header" "nav" "content" "sidebar" "footer";
    }
}

/* tablet */
@media only screen and (min-width: 768px) and (max-width: 991px) {
    .app-container {
        grid-template-columns: 200px 600px 400px;
        grid-template-rows: 100px auto 70px;
        grid-template-areas:
                "header header  header"
                "nav    content sidebar"
                "footer footer  footer";
    }
}

/* monitor */
@media only screen and (min-width: 992px) {
    .app-container {
        grid-template-columns: auto 200px 600px 400px auto;
        grid-template-rows: 100px auto 70px;
        grid-template-areas:
                ". header header  header  ."
                ". nav    content sidebar ."
                "footer footer footer footer footer";
    }

    .footer-content {
        margin: auto;
        width: 1220px;
    }
}

header.main-header {
    grid-area: header;
}

nav.main-nav {
    grid-area: nav;
}

section.profile-title {
    grid-area: title;
}

article.profile {
    grid-area: main;
}

aside.profile-image {
    grid-area: sidebar;
}

footer.main-footer {
    grid-area: footer;
}

footer {
    color: #fffffd;
    background-color: #003b71;
}

nav ul {
    list-style: none;
    padding-left: 0;
}

nav li > ul {
    display: none;
}

nav li.current > ul,
nav li.current_ancestor > ul {
    display: block;
}

nav > ul > li {
    font-variant: small-caps;
    font-weight: 500;
}

nav ul.menu_level_1 {
    padding-left: 5px;
}

nav ul.menu_level_1 > li {
    font-variant: initial;
    display: block;
    padding-left: 15px;
}

nav ul.menu_level_1 > li.current {
    border-left: 5px solid #003b71;
}