.study-wrapper {

}

.study-wrapper .breadcrumbBar {
    margin-bottom: 0;
}

.study-wrapper .headingBackground h1 {
    margin-top: 30px;
}

.study-wrapper .headingBackground .container {
    background: url(./imgs/math_formulas.png) no-repeat center;
    background-position-x: 75%;
}

.study-wrapper .course_detail_sec .right .tray .thumbnail .cover {
    padding-top: 56.25%;
    position: relative;
}

.study-wrapper .course_detail_sec .right .tray .thumbnail .cover img,
.study-wrapper .course_detail_sec .right .tray .thumbnail .cover iframe {
    position: absolute;
    top: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.study-wrapper .course_detail_sec .right .tray .thumbnail .content p.remaining {
    margin-bottom: 15px;
}

.study-wrapper .course_detail_sec .right .tray .thumbnail .detail {
    padding-top: 15px;
    padding-left: 25px;
    padding-right: 25px;
}

.study-wrapper .course_detail_sec .right .tray .thumbnail .content p.old-price span.line-through {
    top: 49%;
}

.study-wrapper .course_detail_sec .left .search-group .input-group-addon {
    color: #333;
}

.study-wrapper .course_detail_sec .left .search-group .input-group-addon:hover {
    background: #FF5620;
    color: #fff;
    border-color: #FF5620;
}

.course_detail_sec .left .search-group .input-group-addon.search i {
    color: inherit;
}

.study-wrapper .sticky-bar {
    z-index: 3;
    margin-bottom: 40px;
    border-radius: 12px;
}

.study-wrapper .search-form {
    position: relative;
    display: none;
}

.study-wrapper .search-form .form-group {
    margin-bottom: 0%;
}

.study-wrapper .search-form input[name="keyword"] {
    height: 53px;
    border-radius: 12px;
    font-family: Quicksand;
    font-size: 18px;
    font-weight: bold;
    padding-left: 62px;
    padding-right: 85px;
    width: 100%;
    border: 1px solid #ccc;
}

.study-wrapper .search-form .btn-search {
    position: absolute;
    width: 70px;
    font-size: 22px;
    font-weight: bold;
    background-color: white;
    height: 53px;
    outline: none;
    border-radius: 0;
    border-top-right-radius: 12px;
    border-bottom-right-radius: 12px;
    right: 0;
    top: 0;
    border: 1px solid #ccc;
}

.study-wrapper .search-form .btn-close {
    position: absolute;
    top: 0;
    left: 0;
    background-color: transparent;
    font-size: 20px;
    color: #d1d1d1;
    width: 55px;
    height: 53px;
    border-top-left-radius: 12px;
    border-bottom-left-radius: 12px;
    outline: none;
    text-align: center;
    line-height: 53px;
    cursor: pointer;
}

.study-wrapper .has-sticky {
    top: inherit;
    will-change: min-height;
}

.study-wrapper .sticky-box {
    position: relative;
    top: -115px;
    transform: translate(0, 0);
    transform: translate3d(0, 0, 0);
    will-change: position, transform;
}

.course_detail_sec .left .course-syllabus .search-box {
    right: 0;
}

#confirmDownloadApp .modal-dialog {
    height: 100vh;
    width: 100vw;
    margin: 0;
}
#confirmDownloadApp .modal-content {
    top: 50%;
    transform: translate(-50%, -50%);
    border: 0;
    border-radius: 16px;
    overflow: hidden;
    left: 50%;
    width: 343px;
}
#confirmDownloadApp .modal-content .modal-body {
    padding: 11px 15px 20px 15px;
}
#confirmDownloadApp .modal-content .modal-header {
    padding: 0;
    border: 0;
    position: relative;
}
#confirmDownloadApp .modal-content .modal-header ._close_popup{
    position: absolute;
    right: 16px;
    top: 16px;
    cursor: pointer;
}

#confirmDownloadApp .weight_bold{
    font-weight: 600;
}
#confirmDownloadApp .modal-content ._content {
    font-size: 14px;
    font-weight: 400;
    color: rgba(0, 0, 0, 0.87);
}
#confirmDownloadApp .modal-content ._btn__submit {
    display: flex;
    justify-content: center;
    gap: 11px;
    margin-top: 12px;
}
#confirmDownloadApp .modal-content ._btn__submit a,
#confirmDownloadApp .modal-content ._btn__submit button {
    color: rgba(255, 102, 9, 1);
    font-size: 14px;
    font-weight: 700;
    cursor: pointer;
    border: 1px solid rgba(255, 102, 9, 1);
    width: 50%;
    background: white;
    height: 40px;
    border-radius: 16px;
    display: block;
    text-align: center;
    line-height: 40px;
}
#confirmDownloadApp .modal-content ._btn__submit .btn_downapp {
    background: rgba(255, 102, 9, 1);
    color: white;
}


@media (max-width: 1024px) {
    .course_detail_sec .right {
        width: 35% !important;
    }
    .course_detail_sec.breadcrumb_sec .headingBackground h1 {
        font-size: 30px !important;
        line-height: 16px !important;
    }
    .breadcrumb_sec .headingBackground {
        height: 110px !important;
    }
    .item-title {
        width: 150px !important;
        font-size: 14px !important;
        line-height: 23px !important;
    }
    .top-button-hoclieu-item {
        height: 35px !important;
    }
}

@media (max-width: 991.98px) {
    .study-wrapper .course_detail_sec .right {
        top: auto;
        display: block;
        width: auto;
        height: auto !important;
    }

    .course_detail_sec .right .tray {
        position: static !important;
        top: auto !important;
        display: block !important;
        width: auto !important;
    }

    .study-wrapper .right .quick-jump-box {
        display: none;
    }

    .study-wrapper .course_detail_sec .right .tray .thumbnail .cover {
        margin-left: -15px;
        margin-right: -15px;
    }

    .study-wrapper .sticky-bar {
        display: none !important;
        position: inherit !important;
        width: 100% !important;
        box-shadow: none !important;
    }
}

@media (min-width: 768px) and (max-width: 991.98px) {
    .study-wrapper .course_detail_sec .right .tray .thumbnail .content p.new-price {
        height: auto;
    }

    .study-wrapper .course_detail_sec .right .tray .thumbnail .content {
        margin-top: 0;
        padding: 0;
    }

    .study-wrapper .course_detail_sec .right .tray .thumbnail .detail {
        padding: 15px 0 0;
    }

    .course_detail_sec .right .tray .thumbnail .content p.new-price span.price {
        font-size: 38px;
    }

    .course_detail_sec .right .tray .thumbnail .content p.old-price {
        font-size: 18px;
    }

    .study-wrapper .course_detail_sec .right .tray .thumbnail .content p.new-price {
        margin-bottom: 0;
    }
}

@media (max-width: 768px) {
    .course_detail_sec .right {
        width: 100% !important;
    }
    .tu_van_them {
        width: 100% !important;
    }
    .item-title {
        width: 460px !important;
        font-size: 18px !important;
        line-height: 23px !important;
    }
    .hidden-right-sidebar {
        display: none !important;
    }
}

@media (max-width: 767.98px) {
    .study-wrapper .course_detail_sec .right .tray .thumbnail .content,
    .study-wrapper .course_detail_sec .right .tray .thumbnail .detail {
        padding-left: 10px;
        padding-right: 10px;
    }

    .course_detail_sec .left .course-syllabus .syllabus .syllabus-box ul.lesson-list li .title h4 {
        /*
        padding-right: 0px!important;
        */
    }

    .top-button-hoclieu-item {
        height: 40px;
        padding-right: 10px;
        left: 5px;
    }
}

@media (max-width: 540px) {
    .item-title {
        width: 240px !important;
    }
    ._items {
        margin-left: 50px !important;
    }
    .course_detail_sec .left .course-syllabus .syllabus .syllabus-box ul.lesson-list li .progress-icon {
        left: 10px
    }
    .course_detail_sec .left .course-syllabus .syllabus .syllabus-box ul.lesson-list li .connect-line {
        left: 26px;
    }
    .course_detail_sec .left .course-syllabus .syllabus .syllabus-box ul.lesson-list li .title h4 {
        padding-left: 50px;
    }
}

@media (max-width: 414px) {
    .item-title {
        width: 136px !important;
        font-size: 13px !important;
    }
}

@media (max-width: 375px) {
    .display-flex-content-between {
        width: 185px !important;
    }
    .item-title {
        width: 155px !important;
        font-size: 13px !important;
    }

    .course-item .course-type {
        font-size: 9px !important;
    }
}

@media (max-width: 375px) {
    .item-title {
        width: 140px !important;
    }
    .course_detail_sec.breadcrumb_sec .headingBackground h1 {
        font-size: 27px !important;
        line-height: 16px !important;
    }
    .top-button-hoclieu-item {
        height: 29px !important;
    }
}

@media (max-width: 320px) {
    .bottom-item img {
        width: 180px !important;
    }
}

.course_detail_sec .left .course-syllabus .syllabus .syllabus-box h4.sub-heading {
    background: #FF873E;
    color: white;
    padding: 5px 85px 5px 25px;
    position: relative;
    cursor: pointer;
    font-size: 18px;
    line-height: 27px;
    margin: 10px;
    border-radius: 10px;
}

.course_detail_sec .left .course-syllabus .syllabus .syllabus-box h4.sub-heading i {
    font-size: 16px;
    position: absolute;
    right: 35px;
    top: 50%;
    transform: translateY(-50%);
}

.sub-heading.collapsed .fa-chevron-down {
    transform: rotate(-90deg) !important;
    transform-origin: center center;
    transition: all ease-in-out;
}

.section-level {
    /* background: #BAEB9D; */
    font-weight: bold;
    padding: 5px;
    color: white;
    border-radius: 3px;
    font-size:12px;
}

.bg-nb-th {
    background: #07E05D;
}

.bg-vd {
    background: #00B030;
}

.bg-vdc {
    background: #007433;
}

.top-button-hoclieu {

}

.top-button-hoclieu-item {
    height: 50px;
    padding-right: 10px;
}

img.course-representative {
    margin-top: 5px;
    width: 11px;
    height: 11px;
}

.livestream-item-by-course {
    height: 250px;
}

.livestream-item-by-course {
    /* border-bottom: 1px solid #D8DDE6; */
}

div.livestream-item-by-course div.course-item:last-child {
    border-bottom: none;
}

.course-item {
    display: flex;
    align-items: baseline;
    border-bottom: 1px solid #D8DDE6;
    margin: 0 0 5px 0;
    padding-bottom: 10px;
}

.course-item i {
    font-size: 10px;
    margin-right: 5px;
    margin-top: 5px;
}

.course-item img {
    cursor: pointer;
    max-width: 60px;
}

.course-item .course-type {
    font-size: 12px;
    white-space: nowrap;
    width: 60px;
    font-weight: bold;
    line-height: 15px;
}

.course-item .col-md-8.display-flex-content-between {
    padding-left: 0px;
}

.course-item .col-md-6.display-flex-content-between {
    padding-right: 0px;
}

div.livestream-item-by-course div.course-item:last-child {
    border-bottom: none;
}

.display-flex-content-between {
    display: flex;
    /*align-items: center;*/
}

.course-item .col-md-8.display-flex-content-between {
    padding-left: 0px;
}

.course-item .col-md-6.display-flex-content-between {
    padding-right: 0px;
}

.display-flex-content-between-vertical {
    display: flex;
    align-items: center;
}

.display-flex-content-between-vertical img {
    margin-top: 20px;
} 

.slogan {
    padding: 12px;
}

.item-title {
    cursor: pointer;
    font-size: 16px;
    line-height: 27px;
    font-weight: 600;
    font-family: Quicksand;
}

.item-title:hover {
    color: #236AB0;
}

.text-blue {
    color: #445975;
}

.text-orange {
    color:#FF9E29;
}

.weight-600 {
    font-weight: 600;
}

.display-flex-content-between a {
    margin: -3px 12px;
}

.text-red {
    color: #E51E26;
}

#title_on_thi {
    cursor: pointer;
    font-size: 18px;
    line-height: 22.5px;
    font-weight: 600;
    font-family: Quicksand;
    color: #FF721D;
    padding: 12px;
}

.bottom-item {
    cursor: pointer;
    padding: 8px 20px;
    margin: 15px 0;
    border: 0.5px solid #FF8236;
    box-shadow: 0px 1px 3px rgba(255, 130, 54, 0.4);
    border-radius: 5px;
}

.bottom-item span {
    color: #3185D8;
    font-size: 20px;
    font-weight: 700;
    margin-left: 20px;
}

.bottom-item:hover {
    background: orange;
}

._items {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-left: 65px;
    margin-right: 16px;
    transition: all 0.3s;
}

._items button {
    font-size: 16px;
    padding: 16px;
    border-radius: 8px;
    border: 1px solid rgba(209, 209, 209, 1);
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 8px;
    background: white;
}
.course_detail_sec .left .course-syllabus .syllabus .syllabus-box ul.lesson-list li .progress-icon {
    top: 25px !important;
}
.course_detail_sec .left .course-syllabus .syllabus .syllabus-box ul.lesson-list li .title h4 {
    margin: 0 0 20px !important;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-right: 20px;
    cursor: pointer;
}