html {
    scroll-behavior: smooth !important;
}
body{
    width: 100% !important;
    overflow-y: auto;
    overflow-x: hidden;
}

section {
    border: rgba(66, 65, 65, 0.93) 0.1rem solid;
}
.row{
    position: relative;
}
.middle {
    position: absolute;
    top: 50%;
    transform: translate(0, -50%);
}
.line-12 {
    line-height: 1.2;
}

.text-left {
    width: 100%;
    text-align: left !important;
}

.text-center {
    width: 100%;
    text-align: center !important;
    vertical-align: middle;
}

.under span {
    font-weight: 700;
    font-size: 5rem;
    color: #C1944E;
}

.fullwidth-screen {
    width: 100vw;
    background-color: #1B2856;
    display: flex;
    justify-content: center;
    align-items: center;
}

.fullwidth-screen img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.table-content {
    /*height: auto;*/
    width: 100%;
    border-collor: white;
    background-color: #1B2856
}

.table-content td {
    width: 32%;
    height: 170px;
    align-items: center;
    padding: 0;
    border: 2px #FFFFFF solid;
    position: relative;
}

.table-content td a {
    font-size: 3.2rem;
    font-weight: 500;
    color: #FFFFFF;
}

.arrow-down {
    position: absolute;
    bottom: 5px;
    left: 0;
    right: 0;
    margin-inline: auto;
    color: #FFFFFF;
    width: 30px;
}

.bt-website, .bt-website:hover, .bt-facebook, .bt-facebook:hover {
    border-radius: 100px;
    width: auto;
    position: relative;
    max-width: 900px;
    border: 15px #b72913 solid;
    color: #b72913;
    padding: 30px;
    margin: 100px auto;
    height: fit-content;
    box-shadow: 0 8px 12px rgb(63 30 30 / 84%);
    display: flex;
    flex-direction: column;
}

.bt-facebook, .bt-facebook:hover {
    border: 15px #1f67aa solid;
    color: #1f67aa;
}

.bt-website span, .bt-facebook span {
    text-align: center;
    vertical-align: top;
    font-family: "Noto Sans", "Noto Sans JP", sans-serif;
    font-weight: 700;
    font-size: 50px;
    margin: auto;
    white-space: wrap;
    line-height: 1.2;
    align-items: center;
}

.bt-website svg, .bt-facebook svg {
    position: absolute;
    height: 60px;
    top: 0;
    bottom: 0;
    right: 15px;
    margin: auto 0;
}

.mx-auto {
    margin-left: auto;
    margin-right: auto;
}

.px-center {
    margin-left: auto;
    margin-right: auto;
    align-content: center;
    vertical-align: middle;
}

section h1.title {
    background-color: #1B2856;
    color: #FFFFFF;
    width: 100%;
    padding: 80px;
    font-size: 8rem !important;
    font-weight: 700;
    border-bottom: 10px solid #F9E72B;
    text-align: center;
}

#gioithieu h2 {
    font-size: 4rem;
    font-weight: 600;
    color: #C19444;
}

#gioithieu .row .header img{
    margin-right: 40px;
}

.hr-line {
    width: 100%;
    height: 1px;
    border: #000 1px solid;
    margin: 20px 0;
}

.row .header {
    display: flex;
    flex-direction: row;
}

.row .header img {
    height: 100px
}

.row .header img, .row .header h2 {
    margin: auto 10px auto 0;
    font-size: 5rem !important;
    text-align: left;
    font-weight: 600;
}

.text-content {
    font-size: 4rem;
    text-align: left;
    color: #4b4847;
    margin-top: 25px;
    line-height: 1.2;
    font-weight: 400;
    font-family: "Noto Sans", "Noto Sans JP", sans-serif !important;
}

h2.text-content {
    font-size: 4.3rem;
    text-align: center;
    color: #B72914;
    font-weight: 600
}
.font4rem{
    font-family: "Noto Sans", "Noto Sans JP", sans-serif !important;
    font-size: 4rem !important;
    font-weight: 500;
}

.thanh-tich img {
    width: 100%;
    /*object-fit: cover;*/
    margin: auto;
}

#khaiquat h2 {
    font-size: 4rem;
    font-weight: 600;
    color: #1E2578;
}

#khaiquat .container h2 {
    margin-top: 20px;
}

#khaiquat .row .header img {
    margin-right: 20px;
}

#khaiquat .row .header h2{
    margin: auto 0;
}

#lichtrinh tbody td {
    padding: 30px 5px !important;
}

#btn-back-to-top {
    position: fixed;
    width: 60px;
    height: 60px;
    background-image: url("../img/chevron-up.svg");
    background-size: 40px 40px;
    background-position: center;
    bottom: 30px;
    right: 20px;
    display: none;
    border: rgba(182, 41, 18, 1) 3px solid;
    border-radius: 100px;
    padding: 15px;
    -webkit-backface-visibility: hidden;
}

#thamgia, #quatang {
    padding-top: 0;
    padding-bottom: 0;
}

#thamgia h2 {
    color: #1E2578;
    margin: 0;
    padding: 0;
}

#quatang h1, #quatang h2 {
    font-weight: 700;
    font-size: 4rem;
}

.table-content td a span{
    padding: 5px 20px
}

.h2-custom{
    margin-top: 80px;
}
.h2-custom h2{
    width: 100%;
    text-align: center;
    color: #B72914!important;
    font-weight: 600 !important;
    font-size: 6rem !important;
}
.container-lich-trinh{
    background-color: #FFFFFF;
    width: 100%;
    text-align: left;
    margin-top: 60px;
    border-right: 10px solid #1E2578;
    border-left: 10px solid #1E2578;
    padding: 10px 50px
}

@media screen and (max-width: 768px) {
    .under span, .row .header img, .row .header h2 {
        font-size: 2.5rem !important;
    }

    #gioithieu h2, #quatang h1, #quatang h2, #khaiquat h2 {
        font-size: 2rem;
    }

    .table-content td a span {
        padding: 5px 15px
    }

    #btRegister-top .bt-website{
        margin-left: 2rem;
        margin-right: 2rem;
    }

    .bt-website span, .bt-facebook span {
        font-size: 35px;
        padding-right: 50px;
        padding-left: 20px;
    }
    
    #btRegister-top .bt-website span {
        padding-left: 40px;
    }

    

    section h1.title{
        font-size: 4rem !important;
        padding: 80px 50px;
    }

    .font4rem, .table-content td a, .text-content{
        font-size: 2rem !important;
    }

    .h2-custom {
        margin-top: 40px;
    }

    .h2-custom h2 {
        color: #B72914 !important;
        font-size: 3rem !important;
    }

    #gioithieu .row .header img {
        margin-right: 10px;
    }
    #lichtrinh .container{
        padding-right: 25px!important;
        padding-left: 25px!important;
    }

    .container-lich-trinh {
        background-color: #FFFFFF;
        width: 100%;
        text-align: left;
        margin-top: 60px;
        border-right: 10px solid #1E2578;
        border-left: 10px solid #1E2578;
        padding: 10px 30px
    }

    .container-lich-trinh td:first-child {
        width: 120px!important;
    }
    #lienhe h1 span{
        font-size: 4rem !important;
    }

    #btn-back-to-top {
        position: fixed;
        width: 40px;
        height: 40px;
        background-size: 30px 30px;
        bottom: 50px;
    }
    
    #thamgia .container{
        padding-right: 15px!important;
        padding-left: 15px!important;
    }
}