/* Dòng tiêu đề nhóm menu */
.menu-title {
    padding: 6px 12px;
    font-weight: bold;
    color: #555;
    background: #f5f5f5;
    border-top: 1px solid #ddd;
    border-bottom: 1px solid #ddd;
}

/* Ngăn cách menu */
.menu-divider {
    border-bottom: 1px solid #ccc;
}

/* Icon màu xanh */
.icon-green {
    color: #28a745;
    font-weight: bold;
}

/* Icon màu đỏ */
.icon-red {
    color: #dc3545;
    font-weight: bold;
}

.side-menu .dropdown-toggle::after {
    content: "\f107"; /* FontAwesome icon: chevron-down */
    font-family: FontAwesome;
    float: right;
    margin-top: 5px;
}
.side-menu .collapse li a {
    padding-left: 25px;
    font-size: 14px;
}
.icon-green { color: #28a745; font-weight: bold; }
.icon-red   { color: #dc3545; font-weight: bold; }



/*css menu*/


.btn-css {
    display: inline-block;
    background-color: #007bff;
    color: white;
    padding: 6px 12px;
    border-radius: 6px;
    cursor: pointer;
    transition: 0.2s;
}
.btn-css:hover {
    background-color: #0056b3;
}



.lbl_ten {
    font-size:18px;
    font-weight:bold;
    color:#676565;
}

.tencd {
    font-size:25px;
    color:#000;
    font-weight:bold;
}


.siso {
    font-size:18px;
    color:#f00;
    font-weight:bold;
}

.nam {
    font-size:15px;
    color:#0c751b;
    font-weight:bold;
}

.thieu {
    font-size:15px;
    color:#f00;
    font-weight:bold;
}






/*main form
    */
#tbl_giaoly th {
            background-color: #808080;
            color: white;
            text-align: center;
            
        }
#tbl_giaoly td
        {
           text-align: center; 
            vertical-align: middle;
        }
#tbl_dile th
        {
        background-color:#808080;
        color:white;
        text-align:center;
        }
#tbl_dile td
        {
           text-align: center; 
            vertical-align: middle;
        }
#tbl_xemdiem th
        {
        background-color:#808080;
        color:white;
        text-align:center;
        }
#tbl_xemdiem td
        {
           text-align: center; 
            vertical-align: middle;
        }
.hoso 
{
	border-collapse:collapse;
	margin-top:20px;
}
.hoso td
{
	border:solid 1px #C2D4DA;
	padding:5px 10px;
}
.header
{
	font-weight:bold;
	background-color:#d3d3d3;
    
}
/*hết*/


#tbl {
    font-family: arial, sans-serif;
    border-collapse: collapse;
    width: 100%;
    

}
#tbl  th {
            background-color:#808080;
            border: 1px solid #dddddd;
            vertical-align: middle;
            text-align: center;
            color:#fff;
            font-weight:800;
            font-size:15px;
        }

#tbl  td {
            border: 1px solid #dddddd;
            text-align: left;
            padding: 6px;
        }

#tbl1  th {
            background-color:#808080;
            border: 1px solid #dddddd;
            vertical-align: middle;
            text-align: center;
            color:#fff;
            font-weight:800;
            font-size:15px;
        }

#tbl1  td {
            border: 1px solid #dddddd;
            text-align: left;
            padding: 6px;
        }

#tbl_baocao  th {
            background-color:#808080;
            border: 1px solid #dddddd;
            vertical-align: middle;
            text-align: center;
            color:#fff;
            font-weight:800;
            font-size:15px;
        }

#tbl_baocao  td {
            border: 1px solid #dddddd;
            text-align: left;
            padding: 3px;
        }

/*
#tbl th:first-child,td:first-child
        {
          position:sticky;
          left:0px;
        }

    #tbl th:nth-child(2), td:nth-child(2) {
        position: sticky;
        left: 0px;
    }
    #tbl th:nth-child(4), td:nth-child(4) {
        position: sticky;
        left: 0px;
        background-color:#808080;
    }

  
#tbl td:first-child
         {
          background-color:#808080;
          text-align:center;
         }
*/
#a_chuyenlop:hover {
    background-color:#cecaca;
   
}

#a_chuyenlop1:hover {
    background-color:#cecaca;
}

.cotdiem {
    width:60px;
    text-align:center;
}
.nhaptext {
    width:80px;
    text-align:center;
}









.forms {
    background-color:#fff;
}
#upload {
    opacity: 0;
}

#upload-label {
    position: absolute;
    top: 50%;
    left: 1rem;
    transform: translateY(-50%);
}
/*
.image-area {
    border: 2px dashed rgba(255, 255, 255, 0.7);
    padding: 1rem;
    position: relative;
}
    */
.image-area::before {
    content: 'Uploaded image result';
    color: #fff;
    font-weight: bold;
    text-transform: uppercase;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 0.8rem;
    z-index: 1;
    display:none;
}
.image-area img {
    z-index: 2;
    position: relative;
    width:150px;
    height:150px;
}