.datalab-header .rbt-header-middle {
    border-bottom: 1px solid #edf0f7;
}

.datalab-header .mainmenu {
    gap: 4px;
}

.datalab-header .mainmenu > li > a {
    font-weight: 600;
}

.datalab-header .submenu li a {
    display: flex;
    align-items: center;
    gap: 10px;
}

.datalab-header .header-left {
    flex: 0 0 auto;
    min-width: 250px;
}

.datalab-header .header-left .logo a,
.datalab-footer .footer-widget .logo a {
    display: block;
    width: 250px;
    height: 44px;
    overflow: visible;
}

.datalab-header .header-left .logo img.datalab-logo,
.datalab-footer .footer-widget .logo img.datalab-logo {
    width: 250px !important;
    height: 44px !important;
    max-height: none !important;
    object-fit: contain !important;
    object-position: left center !important;
    transform: none !important;
}

.datalab-mobile-toggle {
    display: none;
}

.datalab-header .datalab-mobile-panel,
.datalab-mobile-panel {
    display: none !important;
    padding: 18px 0;
    border-top: 1px solid #edf0f7;
    flex-basis: 100%;
}

.datalab-header .datalab-mobile-panel.is-open,
.datalab-mobile-panel.is-open {
    display: none !important;
}

.datalab-mobile-panel a {
    display: block;
    padding: 10px 0;
    font-weight: 600;
    color: #192335;
}

.rbt-minicart-wrapper .minicart-item {
    display: grid !important;
    grid-template-columns: 64px 1fr 34px;
    gap: 12px;
    align-items: center;
    padding: 14px 0 !important;
    border-bottom: 1px solid #edf0f7;
}

.rbt-minicart-wrapper .minicart-item .thumbnail,
.rbt-minicart-wrapper .minicart-item .thumbnail a {
    width: 64px !important;
    height: 64px !important;
    display: block;
}

.rbt-minicart-wrapper .minicart-item .thumbnail img {
    width: 64px !important;
    height: 64px !important;
    object-fit: contain;
    background: #0d1428;
    border-radius: 8px;
    padding: 6px;
}

.rbt-minicart-wrapper .minicart-item .product-content {
    min-width: 0;
}

.rbt-minicart-wrapper .minicart-item .product-content .title {
    margin: 0 0 4px;
    font-size: 14px;
    line-height: 1.35;
}

.rbt-minicart-wrapper .minicart-item .product-content .quantity {
    font-size: 13px;
    color: #6b7280;
}

.rbt-minicart-wrapper .minicart-item .close-btn .rbt-round-btn {
    width: 30px;
    height: 30px;
}

.datalab-mini-cart-empty {
    display: none;
    padding: 28px 16px;
    text-align: center;
    color: var(--color-body);
    font-weight: 500;
}

a.rbt-btn.disabled,
a.rbt-btn[aria-disabled="true"] {
    opacity: 0.55;
    pointer-events: none;
    cursor: not-allowed;
}

.rbt-card-bottom {
    gap: 12px;
}

.datalab-card-cart {
    color: var(--color-primary, #2f57ef) !important;
}

.datalab-card-cart i {
    margin-left: 6px;
}

.datalab-card-cart:focus-visible,
.js-course-open:focus-visible,
.dl-nm-btn-grad:focus-visible,
.dl-nm-btn-outline:focus-visible {
    outline: 3px solid rgba(47, 87, 239, 0.25);
    outline-offset: 3px;
}

.datalab-cart-trigger {
    position: relative;
}

.datalab-cart-count {
    position: absolute;
    top: -8px;
    right: -10px;
    min-width: 20px;
    height: 20px;
    padding: 0 6px;
    align-items: center;
    justify-content: center;
    border-radius: 999px;
    color: #fff;
    background: #ef4444;
    font-size: 11px;
    font-weight: 700;
    line-height: 1;
}

.datalab-cart-table .pro-thumbnail img {
    width: 86px;
    height: 64px;
    object-fit: contain;
    background: #0d1428;
    border-radius: 8px;
    padding: 6px;
}

.datalab-cart-actions {
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
}

.datalab-cart-empty {
    display: none;
    padding: 54px 24px;
    text-align: center;
    border: 1px solid #edf0f7;
    border-radius: 12px;
    background: #fbfcff;
}

.datalab-cart-empty.is-visible {
    display: block;
}

.datalab-cart-empty i {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 64px;
    height: 64px;
    margin-bottom: 18px;
    border-radius: 50%;
    color: var(--color-primary, #2f57ef);
    background: rgba(47, 87, 239, 0.08);
    font-size: 28px;
}

.datalab-cart-empty h4 {
    margin-bottom: 8px;
}

.datalab-cart-table .pro-qty input[readonly] {
    cursor: default;
    background: #f8fafc;
}

.datalab-cart-table tr.is-removing {
    opacity: 0;
    transform: translateX(12px);
    transition: opacity 160ms ease, transform 160ms ease;
}

.datalab-toast {
    position: fixed;
    right: 20px;
    bottom: 20px;
    z-index: 99999;
    max-width: 320px;
    padding: 14px 18px;
    border-radius: 12px;
    color: #fff;
    background: #192335;
    box-shadow: 0 14px 40px rgba(25, 35, 53, 0.22);
    transform: translateY(20px);
    opacity: 0;
    pointer-events: none;
    transition: opacity 180ms ease, transform 180ms ease;
}

.datalab-toast.is-open {
    opacity: 1;
    transform: translateY(0);
}

.datalab-lesson-player {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    min-height: min(68vh, 760px);
    aspect-ratio: 16 / 9;
    overflow: hidden;
    color: #fff;
    background: #111827;
}

.datalab-lesson-player iframe,
.datalab-lesson-player video {
    display: block;
    width: 100%;
    height: 100%;
    border: 0;
    background: #111827;
}

.datalab-lesson-player video {
    object-fit: contain;
}

.datalab-video-shell {
    position: relative;
    width: 100%;
    height: 100%;
    overflow: hidden;
    background: #111827;
}

.datalab-video-shell iframe {
    position: absolute;
    inset: 0;
    z-index: 1;
}

.datalab-video-shell.is-youtube iframe {
    pointer-events: none;
}

.datalab-video-shell.is-youtube::before {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    top: 0;
    z-index: 4;
    height: clamp(118px, 15vw, 190px);
    background: linear-gradient(180deg, #0f172a 0%, #0f172a 42%, rgba(15, 23, 42, 0.88) 68%, rgba(15, 23, 42, 0) 100%);
    pointer-events: none;
}

.datalab-video-shell.is-youtube::after {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 4;
    height: clamp(72px, 9vw, 120px);
    background: linear-gradient(0deg, rgba(15, 23, 42, 0.94) 0%, rgba(15, 23, 42, 0.72) 48%, rgba(15, 23, 42, 0) 100%);
    pointer-events: none;
}

.datalab-video-shell video {
    cursor: pointer;
}

.datalab-video-center {
    position: absolute;
    left: 50%;
    top: 50%;
    z-index: 5;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 76px;
    height: 76px;
    border: 0;
    border-radius: 50%;
    color: #fff;
    background: linear-gradient(135deg, #2f57ef, #b966e7);
    box-shadow: 0 18px 50px rgba(47, 87, 239, 0.36);
    transform: translate(-50%, -50%);
    transition: opacity 180ms ease, transform 180ms ease;
}

.datalab-video-center i {
    font-size: 32px;
    transform: translateX(2px);
}

.datalab-video-shell.is-playing .datalab-video-center {
    opacity: 0;
    transform: translate(-50%, -50%) scale(0.92);
    pointer-events: none;
}

.datalab-video-shell:hover .datalab-video-center,
.datalab-video-shell:focus-within .datalab-video-center {
    opacity: 1;
    pointer-events: auto;
}

.datalab-video-controls {
    position: absolute;
    left: 18px;
    right: 18px;
    bottom: 18px;
    z-index: 6;
    display: grid;
    grid-template-columns: 40px 44px 44px auto 1fr auto 128px 40px;
    gap: 12px;
    align-items: center;
    padding: 12px 14px;
    border: 1px solid rgba(255, 255, 255, 0.13);
    border-radius: 8px;
    color: #fff;
    background: rgba(17, 24, 39, 0.78);
    backdrop-filter: blur(10px);
    transition: opacity 180ms ease, transform 180ms ease;
}

.datalab-video-controls button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border: 0;
    border-radius: 6px;
    color: #fff;
    background: rgba(255, 255, 255, 0.1);
}

.datalab-video-controls button:hover {
    background: rgba(255, 255, 255, 0.18);
}

.datalab-video-controls button span {
    min-width: auto;
    font-size: 12px;
    line-height: 1;
    color: #fff;
}

.datalab-video-controls span {
    min-width: 44px;
    font-size: 13px;
    font-weight: 700;
    color: rgba(255, 255, 255, 0.86);
}

.datalab-video-progress-wrap {
    position: relative;
    display: flex;
    align-items: center;
    width: 100%;
}

.datalab-video-controls input[type="range"],
.datalab-video-progress-wrap input[type="range"] {
    width: 100%;
    accent-color: #2f57ef;
}

.datalab-video-progress-wrap input[type="range"] {
    cursor: pointer;
}

.datalab-video-progress-hover {
    position: absolute;
    left: 0;
    bottom: 24px;
    z-index: 2;
    display: none;
    min-width: auto !important;
    padding: 5px 8px;
    border-radius: 6px;
    color: #fff !important;
    background: rgba(15, 23, 42, 0.94);
    font-size: 12px !important;
    line-height: 1;
    transform: translateX(-50%);
    pointer-events: none;
    white-space: nowrap;
}

.datalab-video-progress-wrap.is-hovering .datalab-video-progress-hover {
    display: block;
}

.datalab-video-shell.is-playing.is-idle {
    cursor: none;
}

.datalab-video-shell.is-playing.is-idle .datalab-video-controls,
.datalab-video-shell.is-playing.is-idle .datalab-video-center {
    opacity: 0;
    transform: translateY(12px);
    pointer-events: none;
}

.datalab-video-shell.is-playing.is-idle .datalab-video-center {
    transform: translate(-50%, -50%) scale(0.92);
}

.datalab-video-volume {
    display: grid;
    grid-template-columns: 36px 76px;
    gap: 8px;
    align-items: center;
}

.datalab-video-volume input[type="range"] {
    width: 76px;
}

.datalab-video-error {
    position: absolute;
    left: 50%;
    top: calc(50% + 78px);
    z-index: 7;
    display: none;
    width: min(520px, calc(100% - 48px));
    padding: 14px 16px;
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 8px;
    color: rgba(255, 255, 255, 0.86);
    background: rgba(15, 23, 42, 0.88);
    font-size: 14px;
    line-height: 1.45;
    text-align: center;
    transform: translateX(-50%);
}

.datalab-video-shell.has-error .datalab-video-error {
    display: block;
}

.datalab-player-loading {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    color: rgba(255, 255, 255, 0.82);
    font-size: 16px;
    font-weight: 600;
}

.datalab-player-loading::before {
    content: "";
    width: 18px;
    height: 18px;
    border: 2px solid rgba(255, 255, 255, 0.25);
    border-top-color: #fff;
    border-radius: 50%;
    animation: datalabSpin 850ms linear infinite;
}

@keyframes datalabSpin {
    to {
        transform: rotate(360deg);
    }
}

@media (max-width: 1199px) {
    .datalab-header .mainmenu-nav,
    .datalab-header .rbt-header-center,
    .datalab-header .account-access {
        display: none !important;
    }

    .datalab-mobile-toggle {
        display: inline-flex;
    }

    .datalab-header .datalab-mobile-panel.is-open,
    .datalab-mobile-panel.is-open {
        display: block !important;
    }
}

@media (max-width: 575px) {
    .datalab-header .header-left .logo a,
    .datalab-header .header-left .logo img.datalab-logo,
    .datalab-footer .footer-widget .logo a,
    .datalab-footer .footer-widget .logo img.datalab-logo {
        width: 210px !important;
        height: 38px !important;
    }

    .datalab-cart-actions .rbt-btn {
        width: 100%;
        justify-content: center;
    }

    .datalab-lesson-player {
        min-height: 260px;
    }

    .datalab-video-controls {
        left: 10px;
        right: 10px;
        bottom: 10px;
        grid-template-columns: 36px 40px 40px 1fr 42px 36px;
        gap: 8px;
    }

    .datalab-video-controls [data-video-current],
    .datalab-video-volume {
        display: none;
    }

    .datalab-video-center {
        width: 62px;
        height: 62px;
    }

    .rbt-card-bottom {
        display: flex;
        flex-direction: column;
        align-items: stretch !important;
    }

    .rbt-card-bottom .rbt-btn-link {
        justify-content: center;
        min-height: 42px;
        padding: 8px 10px;
        border-radius: 8px;
        background: #f7f8ff;
    }

    .dl-nm-actions {
        flex-direction: column;
    }

    .dl-nm-actions a,
    .dl-nm-actions button {
        width: 100%;
        justify-content: center;
    }

    .rbt-cart-area .table {
        min-width: 720px;
    }

    .rbt-cart-area .table-responsive,
    .cart-table {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }

    .datalab-toast {
        right: 12px;
        bottom: 12px;
        left: 12px;
        max-width: none;
    }
}

/* Homepage sticky header switchers */
.datalab-sticky-switchers {
    display: none;
    align-items: center;
    gap: 28px;
    margin-left: 26px;
    white-space: nowrap;
}

.rbt-header .rbt-header-wrapper.rbt-sticky .datalab-sticky-switchers {
    display: inline-flex;
}

.datalab-sticky-switchers .header-info {
    display: inline-flex;
    align-items: center;
    margin: 0;
}

.datalab-sticky-switchers .rbt-dropdown-menu {
    display: inline-flex;
    align-items: center;
    margin: 0;
    padding: 0;
}

.datalab-sticky-switchers .rbt-dropdown-menu > li {
    display: inline-flex;
    align-items: center;
    margin: 0;
}

.datalab-sticky-switchers .rbt-dropdown-menu > li > a {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    min-height: 48px;
    padding: 0;
    color: #64748b;
    background: transparent;
    font-size: 18px;
    font-weight: 700;
    line-height: 1;
    box-shadow: none;
}

.datalab-sticky-switchers .rbt-dropdown-menu > li > a:hover {
    color: #2f57ef;
}

.datalab-sticky-switchers .right-icon {
    margin: 0;
    font-size: 18px;
}

.datalab-sticky-switchers .rbt-dropdown-menu .sub-menu {
    top: 100%;
    right: 0;
    left: auto;
    min-width: 150px;
}

.active-dark-mode .datalab-sticky-switchers .rbt-dropdown-menu > li > a {
    color: #f1f5f9;
}

.active-dark-mode .datalab-sticky-switchers .rbt-dropdown-menu > li > a:hover {
    color: #8fa4ff;
}

@media (max-width: 1399px) {
    .datalab-sticky-switchers {
        gap: 20px;
        margin-left: 20px;
    }

    .datalab-sticky-switchers .rbt-dropdown-menu > li > a {
        font-size: 16px;
    }
}

@media (max-width: 1199px) {
    .datalab-sticky-switchers {
        display: none !important;
    }
}

/* Homepage certificate cards */
.datalab-certificate-area .section-title .description {
    width: min(640px, 100%);
    max-width: 640px;
    margin-left: auto;
    margin-right: auto;
    padding-right: 0 !important;
    padding-left: 0 !important;
    text-align: center;
}

.datalab-certificate-shell {
    position: relative;
    display: grid;
    grid-template-columns: 46px minmax(0, 1fr) 46px;
    align-items: center;
    gap: 14px;
}

.datalab-certificate-track {
    display: flex;
    gap: 24px;
    overflow-x: auto;
    scroll-behavior: smooth;
    scroll-snap-type: x mandatory;
    scrollbar-width: thin;
    padding: 0 2px 18px;
}

.datalab-certificate-track::-webkit-scrollbar {
    height: 8px;
}

.datalab-certificate-track::-webkit-scrollbar-thumb {
    border-radius: 999px;
    background: rgba(47, 87, 239, 0.28);
}

.datalab-certificate-nav {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 46px;
    height: 46px;
    border: 1px solid #d9e1f2;
    border-radius: 999px;
    background: #fff;
    color: #2f57ef;
    box-shadow: 0 12px 30px rgba(25, 35, 53, 0.08);
    transition: all 0.2s ease;
}

.datalab-certificate-nav:hover {
    border-color: transparent;
    background: #2f57ef;
    color: #fff;
    transform: translateY(-2px);
}

.datalab-certificate-card {
    flex: 0 0 min(530px, calc(100vw - 96px));
    scroll-snap-align: start;
    height: 100%;
    overflow: hidden;
    border: 1px solid #edf0f7;
    border-radius: 8px;
    background: #fff;
    box-shadow: 0 18px 45px rgba(25, 35, 53, 0.08);
}

.datalab-certificate-preview {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    aspect-ratio: 16 / 10;
    overflow: hidden;
    padding: 14px;
    background: linear-gradient(135deg, #f8fafc, #eef2ff);
    border-bottom: 1px solid #edf0f7;
}

.datalab-certificate-preview img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    border-radius: 6px;
    background: #fff;
    box-shadow: 0 12px 28px rgba(25, 35, 53, 0.12);
}

.datalab-certificate-content {
    padding: 28px;
}

.datalab-certificate-tag {
    display: inline-flex;
    align-items: center;
    min-height: 30px;
    margin-bottom: 14px;
    padding: 5px 14px;
    border-radius: 999px;
    color: #2f57ef;
    background: rgba(47, 87, 239, 0.09);
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 0;
}

.datalab-certificate-content h3 {
    margin: 0 0 12px;
    color: #192335;
    font-size: 26px;
    line-height: 1.25;
}

.datalab-certificate-content p {
    margin: 0 0 24px;
    color: #6b7280;
    font-size: 18px;
    line-height: 1.55;
}

.active-dark-mode .datalab-certificate-area {
    background: #111c2e !important;
}

.active-dark-mode .datalab-certificate-area .section-title .title {
    color: #fff;
}

.active-dark-mode .datalab-certificate-area .section-title .description {
    color: rgba(226, 232, 240, 0.84);
}

.active-dark-mode .datalab-certificate-card {
    border-color: rgba(255, 255, 255, 0.10) !important;
    background: #162237 !important;
    box-shadow: 0 24px 60px rgba(0, 0, 0, 0.30) !important;
}

.active-dark-mode .datalab-certificate-nav {
    border-color: rgba(255, 255, 255, 0.14);
    background: #162237;
    color: #dbe7ff;
    box-shadow: 0 18px 42px rgba(0, 0, 0, 0.24);
}

.active-dark-mode .datalab-certificate-nav:hover {
    background: #2f57ef;
    color: #fff;
}

.active-dark-mode .datalab-certificate-preview {
    background: linear-gradient(135deg, rgba(248, 250, 252, 0.96), rgba(225, 231, 246, 0.96)) !important;
    border-bottom-color: rgba(255, 255, 255, 0.10) !important;
}

.active-dark-mode .datalab-certificate-preview img {
    background: #fff;
    box-shadow: 0 14px 34px rgba(0, 0, 0, 0.28);
}

.active-dark-mode .datalab-certificate-tag {
    color: #86a0ff;
    background: rgba(47, 87, 239, 0.18);
}

.active-dark-mode .datalab-certificate-content h3 {
    color: #f8fafc;
}

.active-dark-mode .datalab-certificate-content p {
    color: rgba(226, 232, 240, 0.78);
}

.active-dark-mode .datalab-certificate-content .rbt-btn.btn-border {
    border-color: rgba(255, 255, 255, 0.18);
    color: #f8fafc;
}

.active-dark-mode .datalab-certificate-content .rbt-btn.btn-border:hover {
    border-color: transparent;
    color: #fff;
}

@media (max-width: 575px) {
    .datalab-certificate-shell {
        grid-template-columns: 1fr;
    }

    .datalab-certificate-nav {
        display: none;
    }

    .datalab-certificate-card {
        flex-basis: min(88vw, 420px);
    }

    .datalab-certificate-preview {
        aspect-ratio: 4 / 3;
    }

    .datalab-certificate-content {
        padding: 22px;
    }

    .datalab-certificate-content h3 {
        font-size: 22px;
    }

    .datalab-certificate-content p {
        font-size: 16px;
    }
}

/* Lesson comments and approved reviews */
.datalab-lesson-comments {
    margin-top: 34px;
    padding-top: 28px;
    border-top: 1px solid #edf0f7;
}

.datalab-comments-list {
    display: grid;
    gap: 14px;
    margin-bottom: 18px;
}

.datalab-comments-empty {
    margin: 0;
    padding: 16px 18px;
    border: 1px solid #edf0f7;
    border-radius: 8px;
    color: #6b7280;
    background: #f8fafc;
}

.datalab-comment-card {
    padding: 16px 18px;
    border: 1px solid #edf0f7;
    border-radius: 8px;
    background: #fff;
}

.datalab-comment-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 8px;
}

.datalab-comment-head strong {
    color: #192335;
    font-weight: 700;
}

.datalab-comment-head span {
    color: #ff8f3c;
    font-size: 14px;
    white-space: nowrap;
}

.datalab-comment-card p {
    margin: 0 0 8px;
    color: #526179;
}

.datalab-comment-card small,
.datalab-review-lesson {
    display: inline-flex;
    color: #6b7280;
    font-size: 13px;
}

.datalab-comment-form {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr) 120px;
    gap: 12px;
    padding: 18px;
    border: 1px solid #edf0f7;
    border-radius: 8px;
    background: #fbfcff;
}

.datalab-comment-form input,
.datalab-comment-form select,
.datalab-comment-form textarea {
    width: 100%;
    min-height: 48px;
    padding: 0 16px;
    border: 1px solid #e5e7eb;
    border-radius: 8px;
    color: #192335;
    background: #fff;
}

.datalab-comment-form textarea {
    min-height: 110px;
    padding-top: 14px;
    resize: vertical;
}

.datalab-comment-form .full,
.datalab-comment-form .datalab-comment-message {
    grid-column: 1 / -1;
}

.datalab-comment-message {
    margin: 0;
    color: #16a34a;
    font-weight: 600;
}

.datalab-comment-message.is-error {
    color: #dc2626;
}

.datalab-review-avatar {
    display: grid;
    width: 72px;
    height: 72px;
    place-items: center;
    border-radius: 50%;
    color: #fff;
    background: linear-gradient(135deg, #2f57ef, #b966e7);
    font-size: 28px;
    font-weight: 800;
}

.active-dark-mode .datalab-lesson-comments {
    border-top-color: rgba(255, 255, 255, 0.10);
}

.active-dark-mode .datalab-comments-empty,
.active-dark-mode .datalab-comment-card,
.active-dark-mode .datalab-comment-form {
    border-color: rgba(255, 255, 255, 0.10);
    background: #162237;
}

.active-dark-mode .datalab-comment-head strong,
.active-dark-mode .datalab-comment-form input,
.active-dark-mode .datalab-comment-form select,
.active-dark-mode .datalab-comment-form textarea {
    color: #f8fafc;
}

.active-dark-mode .datalab-comment-card p,
.active-dark-mode .datalab-comments-empty,
.active-dark-mode .datalab-comment-card small,
.active-dark-mode .datalab-review-lesson {
    color: rgba(226, 232, 240, 0.78);
}

.active-dark-mode .datalab-comment-form input,
.active-dark-mode .datalab-comment-form select,
.active-dark-mode .datalab-comment-form textarea {
    border-color: rgba(255, 255, 255, 0.12);
    background: #0f1a2b;
}

@media (max-width: 767px) {
    .datalab-comment-form {
        grid-template-columns: 1fr;
    }
}

/* Extra-small phones: keep header actions and course filters inside the viewport. */
@media (max-width: 359px) {
    .rbt-header-9 .rbt-header-wrapper .header-left {
        flex: 1 1 auto;
        min-width: 0;
    }

    .rbt-header-9 .rbt-header-wrapper .header-right {
        flex: 0 0 40px;
        width: 40px;
        min-width: 40px;
        margin-left: 0;
    }

    .rbt-header-9 .header-left .logo,
    .rbt-header-9 .header-left .logo a,
    .rbt-header-9 .header-left .logo img.datalab-logo {
        width: 190px !important;
        max-width: 100% !important;
        height: 36px !important;
    }

    .rbt-header-9 .header-right .rbt-btn-wrapper {
        display: none !important;
    }

    .rbt-header-9 .mobile-menu-bar,
    .rbt-header-9 .hamberger {
        width: 40px;
        min-width: 40px;
        margin: 0;
        padding: 0;
    }

    .rbt-header-9 .hamberger-button {
        width: 36px;
        min-width: 36px;
        height: 36px;
        margin: 0;
    }

    .rbt-course-filter-area .rbt-short-item,
    .rbt-course-filter-area .rbt-search-style {
        width: 100%;
        max-width: calc(100vw - 30px);
        min-width: 0;
    }

    .rbt-course-filter-area .rbt-search-style input {
        width: 100%;
        min-width: 0;
    }
}

/* Animated Data Analitika cover used for course id=1 cards. */
.rbt-card-img a[data-course-id="1"] {
    position: relative;
    display: block;
    overflow: hidden;
    isolation: isolate;
    background:
        radial-gradient(circle at 87% 85%, rgba(139, 72, 255, 0.68), transparent 34%),
        radial-gradient(circle at 16% 18%, rgba(100, 230, 197, 0.18), transparent 18%),
        linear-gradient(135deg, #0b1430 0%, #152965 48%, #6727e8 100%);
}

.rbt-card-img a[data-course-id="1"] > img {
    opacity: 0 !important;
}

.rbt-card-img a[data-course-id="1"]::before {
    content: "";
    position: absolute;
    inset: 0;
    z-index: 1;
    background:
        radial-gradient(circle at 21% 24%, #63e0c6 0 1.5%, transparent 1.7%),
        radial-gradient(circle at 30% 34%, #56a5ff 0 1.25%, transparent 1.45%),
        radial-gradient(circle at 38% 25%, #b394ff 0 1.25%, transparent 1.45%),
        radial-gradient(circle at 45% 42%, #ffe26f 0 1.2%, transparent 1.4%),
        linear-gradient(28deg, transparent 19%, rgba(255,255,255,.34) 19.25%, transparent 19.8%),
        linear-gradient(-34deg, transparent 28%, rgba(255,255,255,.26) 28.25%, transparent 28.8%),
        linear-gradient(43deg, transparent 36%, rgba(255,255,255,.24) 36.25%, transparent 36.8%),
        linear-gradient(rgba(255,255,255,.055) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,.055) 1px, transparent 1px);
    background-size: auto, auto, auto, auto, auto, auto, auto, 34px 34px, 34px 34px;
    animation: dlDataCoverFloat 5.5s ease-in-out infinite alternate;
}

.rbt-card-img a[data-course-id="1"]::after {
    content: "Data Analitika\A Insight, visualization, and real-world tasks\A Datalab Academy";
    white-space: pre-line;
    position: absolute;
    left: 8%;
    right: 8%;
    bottom: 12%;
    z-index: 2;
    padding: clamp(13px, 4.8%, 26px) clamp(15px, 5.4%, 30px);
    border: 1px solid rgba(255,255,255,.18);
    border-radius: 16px;
    color: #fff;
    background: linear-gradient(135deg, rgba(255,255,255,.18), rgba(255,255,255,.08));
    box-shadow: inset 0 1px 0 rgba(255,255,255,.2), 0 18px 45px rgba(54, 29, 148, .2);
    backdrop-filter: blur(8px);
    font-weight: 800;
    font-size: clamp(20px, 7.5%, 34px);
    line-height: 1.2;
    text-shadow: 0 4px 18px rgba(0,0,0,.26);
}

.rbt-card-img a[data-course-id="1"]::after {
    font-family: inherit;
}

.rbt-card-img a[data-course-id="1"] {
    box-shadow: inset 0 0 0 1px rgba(255,255,255,.06);
}

.rbt-card-img a[data-course-id="1"]:hover::before {
    animation-duration: 2.6s;
}

@keyframes dlDataCoverFloat {
    0% { transform: translate3d(-1.5%, -1%, 0) scale(1.02); }
    100% { transform: translate3d(1.5%, 1%, 0) scale(1.05); }
}

/* Progress Metric Card adapted for Data Analitika course thumbnails. */
.rbt-card-img a[data-course-id="1"].has-dl-progress-cover {
    min-height: 190px;
    color: #102018;
    background: #f8fffc;
    border: 1px solid rgba(24, 201, 154, .2);
}

.rbt-card-img a[data-course-id="1"].has-dl-progress-cover::before,
.rbt-card-img a[data-course-id="1"].has-dl-progress-cover::after {
    display: none;
}

.dl-progress-cover {
    position: absolute;
    inset: 0;
    z-index: 3;
    display: block;
    overflow: hidden;
    border-radius: inherit;
    background:
        radial-gradient(circle at 88% 30%, rgba(24, 201, 154, .16), transparent 36%),
        linear-gradient(135deg, #ffffff 0%, #f3fff9 100%);
    font-family: inherit;
}

.dl-progress-head,
.dl-progress-total,
.dl-progress-footer {
    position: absolute;
    z-index: 3;
}

.dl-progress-head {
    top: 9%;
    left: 7%;
    right: 7%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
}

.dl-progress-label {
    color: #14251e;
    font-size: clamp(12px, 3.8vw, 16px);
    font-weight: 800;
}

.dl-progress-trend {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    color: #0ca678;
    font-size: clamp(9px, 2.8vw, 12px);
    font-weight: 700;
}

.dl-progress-total {
    top: 29%;
    left: 7%;
    display: flex;
    align-items: baseline;
    gap: 6px;
}

.dl-progress-total strong {
    color: #071a13;
    font-size: clamp(34px, 10vw, 58px);
    font-weight: 600;
    line-height: 1;
    letter-spacing: 0;
}

.dl-progress-total small {
    color: #5f766d;
    font-size: clamp(9px, 2.9vw, 13px);
    font-weight: 600;
}

.dl-progress-chart-wrap {
    position: absolute;
    z-index: 2;
    right: -5%;
    bottom: 12%;
    width: 68%;
    height: 66%;
    display: block;
    overflow: visible;
    color: rgba(14, 116, 82, .15);
}

.dl-progress-chart {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    overflow: visible;
}

.dl-progress-dots { opacity: .5; }
.dl-progress-area { animation: dlProgressArea 3.2s ease-in-out infinite alternate; }
.dl-progress-line {
    fill: none;
    stroke: #18c99a;
    stroke-width: 4;
    stroke-linecap: round;
    stroke-linejoin: round;
    stroke-dasharray: 1;
    stroke-dashoffset: 1;
    animation: dlProgressDraw 2.2s ease forwards, dlProgressGlow 2.8s ease-in-out 2.2s infinite alternate;
}

.dl-progress-point { cursor: crosshair; outline: none; }
.dl-progress-point-hit { fill: transparent; pointer-events: all; }
.dl-progress-point-dot {
    fill: #18c99a;
    stroke: #fff;
    stroke-width: 2.5;
    opacity: .35;
    transition: opacity .18s ease, transform .18s ease;
}

.dl-progress-point:hover .dl-progress-point-dot,
.dl-progress-point:focus .dl-progress-point-dot {
    opacity: 1;
    transform: scale(1.45);
}

.dl-progress-floating-tip {
    position: absolute;
    z-index: 8;
    display: grid;
    gap: 2px;
    min-width: 86px;
    padding: 7px 9px;
    border: 1px solid rgba(7, 26, 19, .1);
    border-radius: 8px;
    color: #102018;
    background: rgba(255, 255, 255, .98);
    box-shadow: 0 12px 28px rgba(21, 83, 62, .16);
    opacity: 0;
    pointer-events: none;
    transform: translate(-50%, calc(-100% - 10px)) scale(.96);
    transition: opacity .16s ease, transform .16s ease;
}

.dl-progress-floating-tip::after {
    content: "";
    position: absolute;
    left: 50%;
    bottom: -5px;
    width: 10px;
    height: 10px;
    background: rgba(255, 255, 255, .98);
    border-right: 1px solid rgba(7, 26, 19, .08);
    border-bottom: 1px solid rgba(7, 26, 19, .08);
    transform: translateX(-50%) rotate(45deg);
}

.dl-progress-floating-tip.is-visible {
    opacity: 1;
    transform: translate(-50%, calc(-100% - 14px)) scale(1);
}

.dl-progress-floating-tip strong {
    color: #102018;
    font-size: 10px;
    font-weight: 800;
    line-height: 1.1;
    white-space: nowrap;
}

.dl-progress-floating-tip small {
    color: #6d7f77;
    font-size: 8px;
    font-weight: 600;
    line-height: 1.1;
    white-space: nowrap;
}

.dl-progress-chart-wrap::after {
    content: "";
    position: absolute;
    left: var(--dl-progress-cursor-x, 49%);
    top: var(--dl-progress-cursor-y, 34%);
    z-index: 7;
    width: 9px;
    height: 9px;
    border: 2px solid #fff;
    border-radius: 999px;
    background: #18c99a;
    box-shadow: 0 0 0 5px rgba(24, 201, 154, .16);
    opacity: 0;
    transform: translate(-50%, -50%);
    transition: opacity .16s ease, left .12s ease, top .12s ease;
}

.dl-progress-chart-wrap:hover::after,
.dl-progress-chart-wrap:focus-within::after {
    opacity: 1;
}

.dl-progress-footer {
    left: 0;
    right: 0;
    bottom: 0;
    display: flex;
    justify-content: space-between;
    gap: 10px;
    padding: 7px 7%;
    border-top: 1px solid rgba(16, 32, 24, .06);
    color: #6d7f77;
    background: rgba(255, 255, 255, .88);
    font-size: clamp(8px, 2.3vw, 11px);
}

.dl-progress-footer b { color: #0ca678; }

@keyframes dlProgressDraw { to { stroke-dashoffset: 0; } }
@keyframes dlProgressGlow { to { filter: drop-shadow(0 0 8px rgba(24, 201, 154, .45)); } }
@keyframes dlProgressArea { to { opacity: .65; } }

@media (max-width: 575px) {
    .rbt-card-img a[data-course-id="1"].has-dl-progress-cover { min-height: 205px; }
    .dl-progress-chart-wrap { width: 72%; }
}