body {
    background: url("/assets/img/background.png") no-repeat center !important;
    background-size: contain;
}
section[data-css="app-content"] {
    background: transparent !important;
}
section[data-css="sidebar"] {
    background: #19202E;
    background: linear-gradient(0deg, rgba(25, 32, 46, 1) 0%, rgba(25, 46, 88, 1) 100%);
    border-color: #2C3A6A;
}
section[data-css="topbar"] {
    background: #192E58FF;
    border-color: #2C3A6A;
}
section[data-css="Challenge-list-table-wrapper"],
section[data-css="Challenge-show-drawer-content"],
section[data-css="Challenge-edit-drawer-content"],
section[data-css="Challenge-edit-drawer-footer"],
section[data-css="Challenge-new-drawer-content"],
section[data-css="Challenge-new-drawer-footer"] {
    background: #19202E !important;
}

[data-css="sidebar"] > a:first-child {
    height: 100px;
    position: relative;
}

[data-css="sidebar"] > a:first-child:after {
    position: absolute;
    content: " ";
    width: 50%;
    height: 100px;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    background: url("/assets/img/logo.png") no-repeat center;
    background-size: contain;
}

[data-css="sidebar"] > a:first-child svg {
    display: none !important;
}