body{
    background-image: url("../img/bg.jpg");
    background-repeat: no-repeat;
    background-position: left top;
    background-attachment: fixed;
    background-size: 150%;
}
.navbar-brand{
    color: white;
}

.nav-link{
    color: white;
}
.nav-link:hover{
    color: lightgray;
}

.sidebar{
    opacity: 0.8;
}

.sidebar .nav-item .nav-link{
    color: white;
    opacity: 1;
}

#tabelaAlunos th{
    cursor: pointer;
}

.btn-danger{
    background-color: #e30613 !important;
}
.bg-danger{
    background-color: #e30613 !important;
}


#modalCodigo{
    position: relative;
    margin: 0 auto;
    width: 50%;
    background-color: white;
    padding: 10px;
    z-index: 10;
    
}
#codFundo{
    position:absolute;
    top:0;
    left:0;
    z-index:11;
    background-color: rgba(0,0,0,0.5);
    width:100%;
    height:100%;
    visibility: hidden;
    padding: 70px 0;
}
nav{
    background-image: linear-gradient(#f2f2f2, #9e9e9e);
}
.navbar-light .navbar-text{
    color: rgba(0,0,0,0.8);
}
.navbar-nav .nav-item.active .nav-link{
    color: var(--red) !important;
}
.boxAulas{
    background-color: rgba(255,255,255,0.7);
    padding: 30px;
    border-radius: 15px;
    margin-bottom: 20px;
    min-height: 400px;
}
.aula{
    padding: 10px;
}
.cardAula{
    min-height: 300px;
    background-color: rgba(207,207,207,0.5);
    margin: 4px;
    text-align: center;
}
.cardAula a{
    color: red;
}
.cardAula a:hover{
    color: black;
    text-decoration: none;
}
.cardAula i{
    /* color: white; */
    width: 100%;
    margin-top: 20px;
    margin-bottom: 10px;
}
.card-header{
    color: red;
    background-color: rgba(255,255,255,0.0) !important;
}
.lightbox{
    /* display: none; */
    position: fixed;
    z-index: 1;
    padding-top: 100px;
    padding-left: 15%;
    padding-right: 15%;
    padding-bottom: 15%;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(0, 0, 0, 0.7);
}
.lightbox video{
    /* width: 100%; */
    margin: 0 auto;
    display: block;
}
#btnFechar{
    visibility: hidden;
}
.list-group-item{
    background-color: rgba(255, 255, 255, 0) !important;
}