@media screen and (max-width: 991px) {

    /**
    *
    * APP LEVEL STYLES
    *
    */

    .space-4 {
        width: 7px;
    }

    /**
    *
    * HEADER
    *
    */

    #layout-header,
    #layout-page-content,
    #layout-footer {
        padding-left: 5vw;
        padding-right: 5vw;
    }

    #layout-header {
        height: 128px;
        line-height: 128px;
        -webkit-box-shadow: 0 0 8px rgba(0, 0, 0, 0.4);
        -moz-box-shadow: 0 0 8px rgba(0, 0, 0, 0.4);
        box-shadow: 0 0 8px rgba(0, 0, 0, 0.4);
        z-index: 3;
    }

    #layout-header > .logo {
        position: absolute;
        display: inline-block;
        top: 15%;
        left: 4%;
    }

    #layout-header > .page-name {
        position: absolute;
        display: inline-block;
        top: 15%;
        left: 10%;
    }

    #layout-header > .menu-icon {
        position: absolute;
        top: 65%;
        left: 5%;
        cursor: pointer;
    }

    #layout-header > .home-icon {
        position: absolute;
        top: 65%;
        left: 13%;
        text-decoration: none;
    }

    #layout-header > .full-text-search-form > .search-input {
        position: absolute;
        display: inline-block;
        top: 63%;
        left: 21%;
        width: 35%;
    }

    #layout-header > .full-text-search-form > .search-icon {
        position: absolute;
        display: inline-block;
        top: 68%;
        left: 22%;
        z-index: 4;
        color: rgba(0, 0, 0, 0.4);
    }

    /**
    *
    * SIDE MENU
    *
    */

    #layout-side-menu .side-menu-nav {
        display: inline-block;
        width: 90%;
        height: 100vh;
        background-color: white;
        overflow-y: scroll;
        overflow-x: auto;
        padding-left: 10px;
    }

    #layout-side-menu .side-menu-overlay {
        display: inline-block;
        width: 9.7%;
        height: 100vh;
        background-color: rgba(0, 0, 0, 0.5);
        margin-left: -5px;
    }

    #side-menu-header {
        display: block;
        position: relative;
        min-height: 110px;
        height: 110px;
        margin-bottom: 30px;
        border-bottom: solid 1px #ccc;
    }

    #side-menu-header .side-menu-logo-section {
        padding-top: 35px;
        padding-bottom: 6px;
        font-size: 1.3em;
    }

    #side-menu-header .side-menu-langs {
        padding-left: 35%;
    }

    #side-menu-header .close-icon {
        display: block;
        position: absolute;
        top: 5px;
        right: 10px;
        font-size: 1.5em;
        color: #757575;
        cursor: pointer;
    }

    /**
    *
    * PAGE CONTENT
    *
    */

    #layout-page-content {
        z-index: 1;
        width: 100vw;
        padding-left: 5vw;
        padding-right: 5vw;
    }

    #layout-page-content h1 {
        font-size: 2.2em;
    }

    #layout-page-content .table-of-contents-icon {
        top: 150px;
        right: 15px;
        width: 40px;
        height: 40px;
        border-radius: 40px;
        padding-top: 8px;
        padding-left: 11px;
    }

    #layout-page-content .table-of-contents-icon > img {
        width: 20px;
    }

    #layout-page-content .table-of-contents {
        top: 12vh;
        right: 0;

        width: 90vw;
        min-height: 250px;
        height: 75vh;
        padding-top: 15px;
        padding-left: 15px;
        padding-right: 35px;

        -webkit-box-shadow: 0 0 8px rgba(0, 0, 0, 0.4);
        -moz-box-shadow: 0 0 8px rgba(0, 0, 0, 0.4);
        box-shadow: 0 0 8px rgba(0, 0, 0, 0.4);
    }

    /**
    *
    * FOOTER
    *
    */

    #layout-footer {
        min-height: 150px;
        padding-top: 15px;
    }
}