body {
    font-family: 'Montserrat' !important;
}

/* width */
::-webkit-scrollbar {
    width: 6px;
}

/* Track */
::-webkit-scrollbar-track {
    border-radius: 10px;
}

/* Handle */
::-webkit-scrollbar-thumb {
    background: #c1c1c1;
    border-radius: 10px;
}

    /* Handle on hover */
    ::-webkit-scrollbar-thumb:hover {
        background: #b5b5b5;
    }


.layout-row {
    margin: 0px;
}

.logo-row {
    display: none;
}

.logo-row {
    height: 60px;
    padding: 8px 0 8px 35px;
    margin: 0;
    background: #d81220;
    width: 100%;
    position: sticky;
    position: -webkit-sticky;
    position: -moz-sticky;
    position: -ms-sticky;
    top: 0;
    z-index: 9999;
    box-shadow: -10px 4px 15px rgba(0, 0, 0, 0.2);
}

    .logo-row .logo-img {
        height: 45px;
    }

    .logo-row .logo-right {
        display: flex;
        justify-content: flex-end;
        align-items: center;
        height: 60px;
        position: absolute;
        right: 10px;
        top: 0;
    }

        .logo-row .logo-right a {
            height: 100%;
            display: flex;
            justify-content: center;
            align-items: center;
            flex-direction: column;
        }

            .logo-row .logo-right a .hamburger-line {
                background: #fff;
                height: 2px;
                width: 30px;
                margin-bottom: 5px;
            }

.sidebar {
    font-family: Montserrat;
    min-height: 100vh;
    background-color: #d81220;
    box-shadow: -10px 4px 15px rgba(0, 0, 0, 0.1);
    position: fixed;
    display: flex;
    display: -webkit-flex;
    justify-content: space-between;
    align-items: flex-start;
    flex-direction: column;
    right: 0;
    width: 20%;
    padding: 50px 0 0 0;
    overflow: hidden;
    z-index: 10;
    transition: all 0.3s ease-in-out;
}

    .sidebar .row {
        width: 100%;
        margin: 0;
    }

.sidebar-title-wrapper {
    padding-left: calc(calc(100vw / 1440) * 30);
}

.sidebar-cta {
    height: 100%;
    width: 100%;
    padding-left: 0;
    padding-right: 0;
}

    .sidebar-cta a:hover {
        text-decoration: none;
        font-weight: 600;
        font-size: calc(calc(100vw / 1440) * 15);
        color: #C01E31;
    }

    .sidebar-cta a {
        height: calc(calc(100vw / 1440) * 40);
        font-style: normal;
        font-weight: 500;
        font-size: calc(calc(100vw / 1440) * 14);
        line-height: calc(calc(100vw / 1440) * 19);
        text-transform: uppercase;
        color: #FFFFFF;
        display: flex;
        display: -webkit-flex;
        justify-content: flex-start;
        align-items: center;
        transition: all 0.2s ease-in-out;
        padding-left: calc(calc(100vw / 1440) * 30);
    }

        .sidebar-cta a:after {
            content: "";
            width: 100%;
            position: absolute;
            z-index: -1;
            height: calc(calc(100vw / 1440) * 40);
            left: 0;
            transition: all 0.3s ease-in-out;
            background: transparent;
            transform: translateX(-100%);
        }

        .sidebar-cta a:focus, .sidebar-cta a.active {
            font-weight: 600;
            color: #C01E31;
            text-decoration: none;
        }

            .sidebar-cta a.active:after, .sidebar-cta a:focus:after, .sidebar-cta a:hover:after {
                background: #fff;
                transform: translateX(0%);
            }

        .sidebar-cta a svg {
            margin-right: calc(calc(100vw / 1440) * 15);
            height: calc(calc(100vw / 1440) * 25);
            width: calc(calc(100vw / 1440) * 25);
            font-size: calc(calc(100vw / 1440) * 25);
            transition: all 0.2s ease-in-out;
            overflow: visible;
        }

        .sidebar-cta a:focus svg, .sidebar-cta a:focus svg path, .sidebar-cta a:hover svg, .sidebar-cta a:hover svg path {
            height: calc(calc(100vw / 1440) * 32);
            width: calc(calc(100vw / 1440) * 32);
            fill: #C01E31;
            overflow: visible;
            transform: translateX(-5px);
        }

        .sidebar-cta a span {
            width: 100%;
            font-weight: 600;
        }

.site-content {
    width: 80%;
}

.site-content, .logo-row, .footer {
    transition: all 0.3s ease-in-out, filter 0.1s ease-in-out;
}

    .site-content .first-banner-content-wrapper {
        text-align: center;
        height: 100vh;
        background-color: #e21f26;
        position: relative;
    }

    .site-content .first-banner-content {
        position: absolute;
        left: 50%;
        top: 50%;
        transform: translate(-50%, -30%);
    }

    .site-content .banner-backgroud {
        position: absolute;
        opacity: 0.06;
        left: 50%;
    }

        .site-content .banner-backgroud.gmat-text {
            font-weight: 800;
            font-size: calc(calc(100vw / 1440) * 180);
            transform: translate(-50%, -52%);
        }

        .site-content .banner-backgroud.giasu-text {
            font-size: calc(calc(100vw / 1440) * 160);
            transform: translate(-50%, 18%);
        }

    .site-content .first-banner-content h1 {
        font-size: calc(calc(100vw / 1440) * 50);
        font-weight: 800;
        color: white;
    }

    .site-content .first-banner-content h3 {
        font-size: calc(calc(100vw / 1440) * 40);
        color: white;
    }

    .site-content .banner-register-btn {
        width: calc(calc(100vw / 1440) * 230);
        height: calc(calc(100vw / 1440) * 56);
        font-size: calc(calc(100vw / 1440) * 25);
        border-radius: 10px;
        border: unset;
        background-color: #ffffff;
        color: #e21f26;
        font-weight: 700;
        margin-top: 150px;
    }

    .site-content .first-banner-bottom-arrow {
        position: absolute;
        bottom: 8%;
        left: calc(50% - 30px);
        width: 35px;
        height: 15px;
        object-fit: contain;
        transition: all 0.2s ease-in-out;
        cursor: pointer;
        animation: movedown 1s infinite, moveup 1s infinite;
        width: 60px;
        height: 60px;
        padding: 0px 15px;
    }

.course-content .course-content-title {
    padding: calc(calc(100vw / 1440) * 80) 0 calc(calc(100vw / 1440) * 70);
    text-align: center;
}

    .course-content .course-content-title label {
        font-size: calc(calc(100vw / 1440) * 30);
        padding: 30px 20px;
        background-color: #e21f26;
        color: #FFFFFF;
    }

.course-content .course-item {
    margin-bottom: 10px;
}

    .course-content .course-item:hover {
        box-shadow: 5px 6px 14px rgba(0, 0, 0, 0.36);
    }

.course-content .register-btn:hover, .banner-register-btn:hover {
    box-shadow: 0px 0px 10px rgba(0, 0, 0, 0.36);
}

.course-content .course-item .course-item-content {
    border: 1px solid #d7d7d7;
    border-top: unset;
}

.course-content .course-list-item {
    margin: 0px;
    margin-bottom: 70px;
}

.course-content .course-item-header {
    background-color: #e21f26;
    color: #FFFFFF;
    text-align: center;
    padding: 10px;
    font-weight: 700;
    font-size: calc(calc(100vw / 1440) * 18);
}

    .course-content .course-item-header p {
        margin: 0px;
    }

.course-content .course-item-price {
    padding: 20px 0 10px;
    text-align: center;
    font-size: calc(calc(100vw / 1440) * 20);
    font-weight: 800;
    margin: 0 5px;
    border-bottom: 1px solid #d7d7d7;
}

.course-content .course-item-description {
    padding: 10px;
    text-align: justify;
    font-size: calc(calc(100vw / 1440) * 14);
}

    .course-content .course-item-description b {
        font-weight: 600;
    }

    .course-content .course-item-description .key-visual-icon {
        width: 10px;
        margin: 0 5px 2px 0;
    }

.course-content .course-register {
    text-align: center;
}

    .course-content .course-register .register-btn {
        font-size: calc(calc(100vw / 1440) * 20);
        border-radius: unset;
        border: 0px;
        background: #e21f26;
        color: #FFFFFF;
        padding: 10px 20px;
        font-weight: 700;
    }

.course-content .post-separate-scores {
}

    .course-content .post-separate-scores .post-separate-scores-item {
        text-align: center;
        font-size: calc(calc(100vw / 1440) * 20);
        padding: 0 calc(calc(100vw / 1440) * 40) 0;
        font-weight: 500;
        margin-bottom: calc(calc(100vw / 1440) * 80);
    }

        .course-content .post-separate-scores .post-separate-scores-item img {
            width: calc(calc(100vw / 1440) * 100);
            margin: 0 auto;
            margin-bottom: calc(calc(100vw / 1440) * 26);
            display: flex;
        }

.course-content .tutor-image {
    margin-bottom: calc(calc(100vw / 1440) * 100);
}

    .course-content .tutor-image img {
        width: 100%;
        box-shadow: 0px 5px 10px rgba(0, 0, 0, 0.36);
    }

.course-content .srcoll-to-banner {
    text-align: center;
    margin: calc(calc(100vw / 1440) * 40) 0 calc(calc(100vw / 1440) * 30) 0;
}

    .course-content .srcoll-to-banner .srcoll-to-banner-btn {
        cursor: pointer;
        transition: transform .2s;
        font-weight: unset;
    }

        .course-content .srcoll-to-banner .srcoll-to-banner-btn:hover {
            transform: scale(1.2);
        }

    .course-content .srcoll-to-banner .srcoll-to-banner-icon {
        display: flow-root;
        font-size: calc(calc(100vw / 1440) * 30);
    }

    .course-content .srcoll-to-banner .srcoll-to-banner-text {
        font-weight: 700;
        font-size: calc(calc(100vw / 1440) * 12);
    }

.footer {
    width: 80%;
    padding: 0px;
}

    .footer .footer-content {
        width: calc(100% - 4px);
        margin: 0 2px;
        padding: calc(calc(100vw / 1440) * 40);
        border-top: 1px solid #d9d9d9;
    }

    .footer .logo-contact .logo {
        width: 100%;
        display: flow-root;
        margin-bottom: 18px;
    }
.footer-contact-work-time{
    margin-top: calc(calc(100vh /100) * 9); 
}

.footer .logo-contact .text {
    font-weight: 700;
    font-size: calc(calc(100vw / 1440) * 10);
}

    .footer .logo-contact .list-contact-icon {
        display: flex;
        margin-top: calc(calc(100vw / 1440) * 6);
    }

        .footer .logo-contact .list-contact-icon a {
            margin: 0 calc(calc(100vw / 1440) * 5);
        }
    .footer .logo-contact .contact-link {
        display : grid;
    }
    .footer .logo-contact .list-contact-icon .contact-icon {
        width: calc(calc(100vw / 1440) * 26);
        cursor: pointer;
        border-radius: 6px;
    }

    .footer .text-header {
        color: #e21f26;
        font-size: calc(calc(100vw / 1440) * 20);
        font-weight: 700;
    }

.footer .footer-menu a, .footer .contact-us a {
    display: block;
    cursor: pointer;
    margin: calc(calc(100vw / 1440) * 15) 0;
    color: #333;
    font-weight: 600;
    font-size: calc(calc(100vw / 1440) * 15);
    text-decoration: none;
}

        .footer .contact-us a span {
            transition: all 0.2s ease-in-out;
            margin-left: 5px;
        }

        .footer .contact-us a:hover span {
            margin-left: 10px;
        }

    .footer .contact-us .contact-icon, .footer .work-time .work-time-icon {
        width: calc(calc(100vw / 1440) * 16);
    }

    .footer .work-time .time-text {
        margin: calc(calc(100vw / 1440) * 15) 0;
        font-weight: 600;
        font-size: calc(calc(100vw / 1440) * 15);
    }

        .footer .work-time .time-text span {
            margin-left: 5px;
        }

        .footer .work-time .time-text:last-child span {
            margin-left: calc(calc(calc(100vw / 1440) * 16) + 5px);
        }

@keyframes movedown {
    from {
        bottom: 50px;
        opacity: 1;
    }

    to {
        bottom: 35px;
        opacity: 0.75;
    }

    to {
        bottom: 25px;
        opacity: 0.5;
    }
}

/* Responsive*/
@media screen and (max-width: 1024px) {
    .sidebar-cta a {
        height: calc(calc(100vw / 1440) * 50);
        font-size: calc(calc(100vw / 1440) * 25);
        line-height: calc(calc(100vw / 1440) * 25);
    }

    .site-content .banner-backgroud.gmat-text {
        transform: translate(-50%, -52%);
    }

    .site-content .banner-backgroud.giasu-text {
        transform: translate(-50%, 35%);
    }

    .site-content .first-banner-content h3 {
        margin-top: 40px;
    }

    .site-content .banner-register-btn {
        width: calc(calc(100vw / 1440) * 430);
        height: calc(calc(100vw / 1440) * 86);
        font-size: calc(calc(100vw / 1440) * 45);
    }

    .course-content .col-responsive {
        width: 50%;
    }

    .course-content .course-content-title label {
        font-size: calc(calc(100vw / 1440) * 34);
    }

    .course-content .course-item-header {
        font-size: calc(calc(100vw / 1440) * 23);
    }

    .course-content .course-item-price {
        font-size: calc(calc(100vw / 1440) * 30);
    }

    .course-content .course-item-description {
        font-size: calc(calc(100vw / 1440) * 22);
    }

    .course-content .course-register .register-btn {
        font-size: calc(calc(100vw / 1440) * 24);
    }

    .course-content .post-separate-scores .post-separate-scores-item {
        font-size: calc(calc(100vw / 1440) * 22);
    }

    .course-content .srcoll-to-banner .srcoll-to-banner-text {
        font-size: calc(calc(100vw / 1440) * 17);
    }

    .footer .footer-contact-menu .footer .footer-contact-work-time {
        width: 50%;
    }

    .footer .logo-contact .logo {
        width: calc(calc(100vw / 1024) * 130);
    }

    .footer .logo-contact .text {
        font-size: calc(calc(100vw / 1440) * 14);
    }

    .footer .text-header {
        font-size: calc(calc(100vw / 1440) * 22);
    }

    .footer .footer-menu a, .footer .contact-us a, .footer .work-time .time-text {
        font-size: calc(calc(100vw / 1440) * 17);
    }
    .footer-contact-work-time {
        margin-top: calc(calc(100vh /100) * 4);
    }
}

/* Responsive*/
@media screen and (max-width: 768px) {
    .site-content .banner-backgroud.gmat-text {
        transform: translate(-50%, -47%);
    }

    .site-content .banner-backgroud.giasu-text {
        transform: translate(-50%, 46%);
    }

    /*.footer .footer-contact-work-time {
        padding-left: 0px;
    }*/
    .footer-menu .contact-work {
        display: flex;
        flex-direction: column;
        justify-content: space-between;
    }

        /*.footer .footer-contact-work-time .contact-us {
            padding: 0px;
        }*/
    .footer .logo-contact .logo {
        width: calc(calc(100vw / 1024) * 280)
    }
    .footer-contact-menu .logo-contact {
        padding: 0;
    }
    .logo-contact .logo-image {
        padding: 0
    }
}

/* Responsive*/
@media screen and (max-width: 414px) {
    .logo-row {
        display: block;
        z-index: 999;
    }

    .logo-chinh{
        display: none;
    }

    .sidebar {
        z-index: 1000;
        position: fixed;
        top: 0;
        transform: translateX(80vw);
        width: 80vw;
    }

        .sidebar.show {
            transform: translateX(0);
        }

    .first-banner.show-sidebar, .logo-row.show-sidebar, .footer.show-sidebar {
        transform: translateX(-79vw) !important;
        filter: brightness(0.6);
    }

    .sidebar-cta {
        padding-left: 30px;
    }

        .sidebar-cta a {
            height: calc(calc(100vw / 1440) * 170);
            font-size: calc(calc(100vw / 1440) * 40);
        }

            .sidebar-cta a svg {
                margin-right: calc(calc(100vw / 375) * 15);
                height: calc(calc(100vw / 375) * 22);
                width: calc(calc(100vw / 375) * 22);
                font-size: calc(calc(100vw / 375) * 22);
                transition: all 0.2s ease-in-out;
                overflow: visible;
            }

    .site-content {
        width: 100%;
    }

        .site-content .first-banner-content h1 {
            font-size: calc(calc(100vw / 1440) * 70);
        }

        .site-content .first-banner-content h3 {
            font-size: calc(calc(100vw / 1440) * 50);
            margin-top: 30px;
        }

        .site-content .banner-backgroud.gmat-text {
            font-size: calc(calc(100vw / 1440) * 220);
            transform: translate(-50%, -38%);
        }

        .site-content .banner-backgroud.giasu-text {
            font-size: calc(calc(100vw / 1440) *190);
            transform: translate(-50%, 62%);
        }

        .site-content .banner-register-btn {
            width: calc(calc(100vw / 1440) * 600);
            height: calc(calc(100vw / 1440) * 120);
            font-size: calc(calc(100vw / 1440) * 55);
        }

    .course-content .course-content-title {
        padding: calc(calc(100vw / 1440) * 120) 0 calc(calc(100vw / 1440) * 100);
    }

        .course-content .course-content-title label {
            font-size: calc(calc(100vw / 1440) * 45);
        }

    .course-content .course-list-item {
        margin-bottom: 40px;
    }

    .course-content .col-responsive:nth-child(odd) {
        padding-right: 6px;
    }

    .course-content .col-responsive:nth-child(even) {
        padding-left: 6px;
    }

    .course-content .course-item-header {
        font-size: calc(calc(100vw / 1440) * 40);
    }

    .course-content .course-content-title label {
        padding: 20px;
    }

    .course-content .course-item-price {
        font-size: calc(calc(100vw / 1440) * 56);
    }

    .course-content .course-item-description {
        font-size: calc(calc(100vw / 1440) * 38);
    }

    .course-content .course-register .register-btn {
        font-size: calc(calc(100vw / 1440) * 38);
    }

    .course-content .post-separate-scores .post-separate-scores-item {
        font-size: calc(calc(100vw / 1440) * 38);
    }

    .course-content .srcoll-to-banner .srcoll-to-banner-icon {
        font-size: calc(calc(100vw / 1440) * 50);
    }

    .course-content .srcoll-to-banner .srcoll-to-banner-text {
        font-size: calc(calc(100vw / 1440) * 30);
    }

    .footer {
        width: 100%;
    }

        .footer .footer-contact-menu .logo-contact {
            padding: 0px;
        }

        .footer .logo-contact .logo {
            width: calc(calc(100vw / 768) * 270);
        }
        .footer .logo-contact .list-contact-icon a {
            margin: 0 calc(calc(100vw / 768) * 8) 3px;
        }
    .footer-contact-work-time {
        margin-top: calc(calc(100vh /100) * 2);
    }
        .footer .logo-contact .text {
            font-size: calc(calc(100vw / 768) * 20);
        }

        .footer .logo-contact .list-contact-icon .contact-icon {
            width: calc(calc(100vw / 768) * 45);
            border-radius: 3px;
        }

        .footer .text-header {
            font-size: calc(calc(100vw / 768) * 23);
        }

        .footer .footer-menu a, .footer .contact-us a, .footer .work-time .time-text {
            font-size: calc(calc(100vw / 768) * 22);
        }
    .footer .contact-us .contact-icon, .footer .work-time .work-time-icon {
        width: calc(calc(100vw / 768) * 30);
    }

        .footer .footer-contact-work-time .work-time {
            padding-right: 0px;
            padding-top:6px;
        }
    .footer .footer-content {
        padding: calc(calc(100vw / 414) * 20) calc(calc(100vw / 414) * 10);
    }
}

/* Responsive*/
@media screen and (max-width: 375px) {
    .site-content .banner-backgroud.giasu-text {
        transform: translate(-50%, 72%);
    }

    .course-content .course-content-title label {
        font-size: calc(calc(100vw / 1440) * 44);
    }

    .course-content .course-item-header {
        font-size: calc(calc(100vw / 1440) * 36);
    }

    .course-content .course-item-price {
        font-size: calc(calc(100vw / 1440) * 52);
    }

    .course-content .course-item-description {
        font-size: calc(calc(100vw / 1440) * 34);
    }

    .course-content .course-register .register-btn {
        font-size: calc(calc(100vw / 1440) * 32);
    }

    .course-content .post-separate-scores .post-separate-scores-item {
        font-size: calc(calc(100vw / 1440) * 32);
    }

    .course-content .srcoll-to-banner .srcoll-to-banner-text {
        font-size: calc(calc(100vw / 1440) * 26);
    }
}