body {
    position: relative;
    margin: 0px;
    color: #696969;
    background-image: url('/images/background.jpg');
    background-repeat: no-repeat;
    background-attachment: fixed;
    background-size: cover;
    background-position: center;
    padding-bottom: 150px;
}

footer {
    position: absolute;
    bottom: 0;
    width: 100%;
    border-top: 1px solid #ffffff!important;
}

footer > div {
    padding: 20px;
}

img {
    max-height: 100%;
    vertical-align: middle;
    border-radius: 20px;
}

a {
    text-decoration: none;
    color: #696969;
}

.classic-link {
    color: rgb(0,0,238);
    cursor: pointer;
    text-decoration: underline;
}

.header {
    position: relative;
    padding-top: 5px;
    width: 100%;
    height: 50px;
    text-align:center;
}

.header > div {
    position: absolute;
    width: 100%;
    height: 50px;
}

.header-stripe {
    /*background-color: #008080;*/
    background-color: #000000;
    height: 26px;
    margin-top: 11px;
}

.header-link {
    color: #FFFFFF;
    font-size: 25px;
}

.container {
    position: relative;
}

.navbar {
    margin-top: 0px;
    text-align: right;
    padding-right: 30px;
}

.navbar > a {
    padding-left: 10px;
    padding-right: 10px;
    font-weight: bold;
    color: #4a4a4a;
}

.about {
    margin-left: 15%;
    margin-right: 15%;
    padding: 20px;
    background: rgba(255, 255, 255, 0.8);
    border-radius: 20px;
}

.about > p:first-child {
    margin-top: 0px;
}

.about > p:last-child {
    margin-bottom: 0px;
}

.app-preview-list-row {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-evenly;
}

.app-preview-list-row > .app-preview {
    margin-left: 20px;
    margin-right: 20px;
}

.app-preview {
    margin: auto;
    margin-bottom: 20px;
    width: 70%;
    max-width: 520px;
    background: rgba(255, 255, 255, 0.8);
    border-radius: 20px;
    text-align: center;
}

.app-preview > a {
    display: block;
    padding: 20px;
}

.app-title {
    font-weight: bold;
}

.app-preview-image {
    width: 66%
}

.immersed-icon {
    width: 27px;
}

.start-button {
    color: #fff;
    background-color: #000000;
    border: 1px solid #000000;
    padding: .375rem .75rem;
    border-radius: .25rem;
    transition: background-color .25s ease-in-out,border-color .25s ease-in-out,box-shadow .25s ease-in-out;
}

.start-button:hover {
    background-color: #4caf50;
    border-color: #4ca843;
}

.comments-section {
    margin-top: 40px;
}

.comment-button {
    margin-right: 10%;
    color: #000000;
    background-color: transparent;
    border: 1px solid #696969;
    padding: .375rem .75rem;
    border-radius: .25rem;
    transition: color .25s ease-in-out,background-color .25s ease-in-out,border-color .25s ease-in-out,box-shadow .25s ease-in-out;
}

.comment-button:hover {
    background-color: #ffffff;
    border-color: #000000;
}

.comment-button.disabled {
    cursor: wait;
}

.new-comment-box {
    resize: none;
    outline: none;
    border-radius: 10px;
    padding: 10px;
    width: 80%
}

.comments-div {
    padding-top: 20px;
}

.comment {
    text-align: left;
    border-top-style: solid;
    border-top-width: thin;
    border-top-color: darkgrey;
    padding-top: 16px;
    padding-bottom: 16px;
    margin: auto;
    width: 90%;
}

.small-card {
    margin: auto;
    margin-top: 50px;
    padding: 20px;
    width: 70%;
    max-width: 250px;
    background: rgba(255, 255, 255, 0.8);
    border-radius: 20px;
}

.medium-card {
    margin: auto;
    margin-top: 50px;
    padding: 20px;
    width: 70%;
    max-width: 480px;
    background: rgba(255, 255, 255, 0.8);
    border-radius: 20px;
}

.large-card {
    margin: auto;
    margin-top: 50px;
    padding: 20px;
    width: 85%;
    max-width: 680px;
    background: rgba(255, 255, 255, 0.8);
    border-radius: 20px;
}

.authenticate-card-title {
    margin-top: .43rem;
    margin-bottom: 1rem;
    display: inline-block;
}

.color-change-button {
    color: #007bff;
    background-color: transparent;
    border: 1px solid #007bff;
    padding: .375rem .75rem;
    border-radius: .25rem;
    transition: color .15s ease-in-out,background-color .15s ease-in-out,border-color .15s ease-in-out,box-shadow .15s ease-in-out;
}

.color-change-button:hover {
    color: #fff;
    background-color: #007bff;
    border-color: #007bff;
}

.card-input-group {
    margin-bottom: 1rem;
}

.card-input-group > label {
    margin-bottom: .25rem;
    display: inline-block;
}

.card-input-group > input {
    display: block;
    width: 100%;
    padding: .375rem .75rem;
    font-size: 1rem;
    color: #000;
    border: 1px solid #ced4da;
    border-radius: .25rem;
    transition: border-color .15s ease-in-out,box-shadow .15s ease-in-out;
}

.card-input-group > input:focus {
    color: #495057;
    background-color: #fff;
    border-color: #80bdff;
    outline: 0;
    box-shadow: 0 0 0 0.2rem rgba(0,123,255,.25);
}

.card-input-group > input[type=button] {
    display: block;
    width: 100%;
    padding: .375rem .75rem;
    font-size: 1rem;
    color: #fff;
    background-color: #007bff;
    border-color: #007bff;
    cursor: pointer;
}

.card-input-group > input[type=button]:hover {
    color: #fff;
    background-color: #0069d9;
    border-color: #0062cc;
}

.account-row {
    margin-bottom: 20px;
}

.tutorial-preview {
    margin: auto;
    margin-bottom: 20px;
    padding: 20px;
    width: 85%;
    max-width: 680px;
    background: rgba(255, 255, 255, 0.8);
    border-radius: 20px;
    color: rgb(44,74,134);
}

.tutorial-preview > h3 {
    margin: 0;
}

.inline-flex {
    display: inline-flex;
}

.flex-space-between {
    display: flex;
    justify-content: space-between;
}

.mirror {
    transform: scaleX(-1);
}

.text-right {
    text-align: right;
}

.text-center {
    text-align: center;
}

.italic {
    font-style: italic;
}

.underlined {
    text-decoration: underline;
}

.indent-20 {
    text-indent: 20px;
}

.float-right {
    float: right;
}

.display-none {
    display: none;
}

.collapsible:not(.collapsed) > span:first-child {
    display: none;
}

.collapsible.collapsed > span:last-child {
    display: none;
}

.collapsible-content {
    padding: 0;
    background-color: #ffffff;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.2s ease-out;
    border-radius: .25rem;
}

.collapsible-content-body {
    padding: 18px;
}

.processing {
    color: goldenrod;
}

.success {
    color: green;
}

.error {
    color: red;
}

.processing, .success, .error {
    display: none;
}

.processing.show, .success.show, .error.show {
    display: block;
}

.ellipsis-overflow {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}