html{
    min-height: 100vh;
    /* font-size: 14px; */
}

body{
    min-height: 100vh;
    background: #fcfcfc;
    margin: 0;
    padding: 0;
    /* font-family: Tahoma, Arial; */
    font-family: Inter, system-ui, Avenir, Helvetica, Arial, sans-serif;
    color: #2b323b;
}

a{
    text-decoration: none;
    outline: none;
}

img{
    border: 0;
    max-width: 100%;
    height: auto;
}

.clear{
    clear: both;
}

.clearfix:after{
    content: ".";
    display: block;
    height: 0;
    clear: both;
    visibility: hidden;
}

.align{
    max-width: 1300px;
    margin: 0 auto;
    padding: 1px 0;
}


/* Header */
ul.hat_menu_ul{
    margin: 0;
    padding: 0;
    list-style-type: none;
}

ul.hat_menu_ul li{
    display: inline-block;
    vertical-align: middle;
    margin-right: 10px;
}

ul.hat_menu_ul li a{
    font-size: 18px;
    color: #646e82;
    font-weight: 500;
}

ul.hat_menu_ul li a:hover,
ul.hat_menu_ul li.current_page_item a{
    color: #11b6a5;
    text-decoration: none;
}

.hat_wrapper{
    z-index: 1;
    position: relative;
    background-color: #e6edf04d;
    color: #fff;
    padding: 10px 0;
    border-bottom: 1px solid #e5e7eb;
}

.main_section,
.index_section{
    min-height: calc(100vh - 251px);
    background-color: #fff;
    box-shadow: #ddd 0 0 3px;
}

.section{
    padding: 30px;
}

.section a{
    color: #11b6a5;
}



.login_tabs{
    max-width: 500px;
    margin: 0 auto;
}

.login_tabs a{
    color: #11b6a5;
    font-weight: 500;
}




#btn_login,
#btn_register,
#btn_recovery{
    cursor: pointer;
}

.flash{
    position: fixed;
    top: 0;
    right: 0;
    left: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    display: flex;
    justify-content: center;
    align-items: center;
    text-align: center;
    color: #fff;
    font-weight: 700;
    font-size: 30px;
    z-index: 99;
}

.flash.ok{
    /* background: rgba(00, 50, 0, 0.8); */
    background: #22c35dc7;
}

.flash.not_ok{
    /* background: rgba(50, 0, 0, 0.8); */
    background: #ef4444d9;
}

/* Footer */
.footer_wrapper{
    z-index: 1;
    position: relative;
    background-color: #e6edf04d;
    color: #282c34;
    font-weight: 600;
    border-top: 1px solid #e5e7eb;
}

.footer_section{
    padding: 20px 0;
}

.footer_copyright{
    font-size: 18px;
}

.footer_menu{
    margin: 0;
    padding: 0;
    list-style-type: none;
}

.footer_menu li{
    margin: 0;
    padding: 0;
}

.footer_menu li a{
    display: block;
    color: #646e82;
    font-size: 18px;
}

.footer_menu li a:hover{
    color: #2bc79c;
    text-decoration: none;
}

/* Inner */
.inner_wrapper{
    display: flex;
    background: #fcfcfc;
}

.inner_sidebar{
    width: 300px;
    flex-shrink: 0;
    padding-left: 10px;
    padding-right: 10px;
    /* background-color: #1d3d3c; */
    min-height: 100vh;
}

.sidebar_burger{
    width: 40px;
    height: 40px;
    display: none;
    border-radius: 4px;
}

.sidebar_burger:hover{
    background-color: #a8f7ef;
}

.sidebar_sticky{
    position: sticky;
    left: 0;
    top: 25px;
    right: 0;
    font-weight: 500;
}

.inner_sidebar_menu{
    margin: 0;
    padding: 0;
    list-style-type: none;
}

.inner_sidebar_menu a{
    display: block;
    color: #2b323b;
    font-weight: 500;
    font-size: .875rem;
    line-height: 1.25rem;
    padding: 8px 16px;
    border-radius: 4px;
    font-size: 18px; 
}

.inner_sidebar_menu li:not(:last-child) a{
    margin-bottom: 8px;
}

.inner_sidebar_menu a.active,
.inner_sidebar_menu a:hover{
    text-decoration: none;
    color: #fff;
    background: #11b6a5;
}

.inner_sidebar_menu .fa{
    width: 20px;
    text-align: center;
    margin-right: 10px;
}


.inner_content{
    flex-grow: 1;
    min-height: 100vh;
}

.payment_info_div{
    font-size: 20px;
    font-weight: 700;
}

.payment_info_div a{
    color: #2bc79c;
}

.group_one_hat{
    cursor: pointer;
    position: relative;
    padding-right: 30px;
}

.group_one_icon{
    position: absolute;
    right: 0;
    top: 0;
    bottom: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 36px;
    transition: all 0.5s;
}

.group_one_hat.active .group_one_icon{
    transform: rotate(180deg);
}

.group_one_body{
    display: none;
}

.copy_welcome_code{
    display: inline-block;
    vertical-align: middle;
    margin: 0 10px;
    border-radius: 4px;
    cursor: pointer;
}

.fa_anim{
    background: crimson !important;
    border-color: crimson !important;
}

.hw_student_check{
    width: 20px;
    height: 20px;
}

.hw_student_tr.table-success{
    cursor: pointer;
}

.hw_student_checkbox_td{
    width: 50px;
    text-align: center;
}

.hw_student_tr td{
    vertical-align: middle;
}

.vl_pagination{
    margin: 0;
    padding: 0;
    list-style-type: none;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
}

.vl_pagination li{
    width: 40px;
    height: 40px;
    border: 1px solid #2b323b;
    background: #fff;
    display: flex;
    justify-content: center;
    align-items: center;
    margin: 4px;
    font-weight: 700;
    border-radius: 0.25rem;
}

.vl_pagination li:not(.dots){
    cursor: pointer;
}

.vl_pagination li.dots{
    border: 1px solid #666;
}

.vl_pagination li.currentpage{
    border: 1px solid #2b323b;
    background: #cbd5e1;
    color: #2b323b;
}

.sidebar_show{
    display: none;
    position: relative;
    width: 30px;
    height: 30px;
    z-index: 4;
    background: #cbd5e1;
}

.sidebar_hide{
    display: none;
    position: relative;
    width: 30px;
    height: 30px;
    z-index: 4;
    background: #cbd5e1;
}

.sidebar_show .fa,
.sidebar_hide .fa{
    position: absolute;
    left: 0;
    bottom: 0;
    right: 0;
    top: 0;
    display: flex;
    justify-content: center;
    align-items: center;
}

.table_wrapper{
    overflow-x: auto;
    width: 100%;
}

.table_wrapper::-webkit-scrollbar{
    width: 8px;
    height: 4px;
    background: #8fd19e;
}

.table_wrapper::-webkit-scrollbar-thumb {
    width: 8px;
    height: 4px;
    background: #2c706e;
}

.table_short{
    min-width: 400px;
}

.table_middle{
    min-width: 600px;
}

.table_big{
    min-width: 800px;
}

.table_giant{
    min-width: 1400px;
}

.game_download_btn span{
    position: relative;
    top: -2px;
}