*{
    padding: 0;
    margin: 0;
    box-sizing: border-box;
}

html{
    font-family: Arial, Helvetica, sans-serif;
}

.nen{
    background-color:#0E9397;
    min-height: 1000px;
    height: auto;
    width: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
}

.container{
    width: 1200px;
    height: auto;
    border-radius: 30px;
    background-color: #fff;
    padding: 20px;
}

.content{
    height: auto;
    width: 600px;
    margin: 0 auto;
}

.logo_uth{
    width: 600px;   
    
}

.nav{
    padding: 10px;
}

.nav_1{
    color: #fff;
    border: none;
    padding: 10px;
    width: 49.6%;
    font-size: 15px;
    font-weight: 550;
    background-color: #0E9397;
    cursor: pointer;
    text-transform: uppercase;
}

.tieude{
    text-align: center;
    font-size: 30px;
    padding: 10px;
    color: #008689;
    text-transform: uppercase;
}

.tinhdiem{
    display: none;
}

.tradiem{
    margin: 0 20px;
    padding: 0px 20px;
}

.group{
    margin: 10px;
}

.group .label_ten{
    display: block;
    margin-bottom: 10px;
}

.group .input_vao{
    width: 100%;
    padding: 10px;
    border: 1px solid #008689;
    cursor: pointer;
}

.search{
    width: 96.5%;
    margin: 10px;
    padding: 10px;
    text-transform: uppercase;
    background-color: #0E9397;
    color: #fff;
    font-size: 15px;
    border: none;
    font-weight: 600;
}

.nav_1:hover,
#calculateButton:hover,
.tradiem .search:hover {
    opacity: 0.8;
    cursor: pointer;
    color: black;
}

#resultTable{
    text-align: center;
    margin: 0 auto;
    width: 600px;
    display:none;
    border-collapse:collapse;
}

#resultTable th,td{
    padding: 5px;
}
#resultTable th{
    width: 50%;
}

#studentInfo{
    margin: 10px auto;
    width: 600px;
    display: none;
}

.head_table{
    background-color: #0E9397;
    color: #fff;
}

.form-group {
    display: flex; 
    justify-content: space-between; 
    margin: 10px; 
    
}

.form-group label {
    flex: 1;
    margin-right: 10px; 
}

.form-group input {
    flex: 2; 
    padding: 5px;
    border: 1px solid #008689 ;
}

#gpaForm{
    width: 600px;
    padding: 0 20px;
}

#calculateButton{
    margin: 20px 0;
    width: 100%;
    padding: 10px;
    font-size: 20px;
    background-color: #0E9397;
    border: none;
    color: #fff;
    text-align: center;
    text-transform: uppercase;
}



.two_colum {
    /* display: flex; */
    justify-content: space-between;
    margin-top: 20px;
    width: 80%;
    margin: auto;
    display: none;
}
.colum_1 {
    flex: 2;
    padding: 20px;
    border: 1px solid #ccc;
}
.colum_2 {
    flex: 1;
    border: 1px solid #ccc;
}