.tc6-study-system-page .site-content,
.tc6-study-system-page .content-area,
.tc6-study-system-page main.site-main {
    max-width: none;
}

.tc6-program,
.tc6-single-lesson {
    --tc6-primary: #175cd3;
    --tc6-primary-dark: #1849a9;
    --tc6-border: #d0d5dd;
    --tc6-soft: #f8fafc;
    --tc6-text: #101828;
    --tc6-muted: #475467;
    color: var(--tc6-text);
    font-size: 16px;
    line-height: 1.7;
}

.tc6-program {
    width: min(1120px, calc(100% - 32px));
    margin: 28px auto 56px;
}

.tc6-program-hero {
    padding: 30px;
    border: 1px solid #b2ccff;
    border-radius: 18px;
    background: linear-gradient(135deg, #eff8ff, #f8fafc);
}

.tc6-eyebrow {
    display: block;
    margin-bottom: 7px;
    color: var(--tc6-primary-dark);
    font-size: 13px;
    font-weight: 800;
    letter-spacing: .08em;
    text-transform: uppercase;
}

.tc6-program-hero h2 {
    margin: 0 0 10px;
    font-size: clamp(28px, 4vw, 43px);
    line-height: 1.18;
}

.tc6-program-hero p {
    max-width: 820px;
    margin: 0;
    color: var(--tc6-muted);
}

.tc6-program-stats {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 20px;
}

.tc6-program-stats span {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 7px 12px;
    border: 1px solid #b2ccff;
    border-radius: 999px;
    background: #fff;
    color: var(--tc6-muted);
}

.tc6-program-stats strong {
    color: var(--tc6-primary-dark);
}

.tc6-program-tools {
    position: sticky;
    z-index: 5;
    top: 0;
    margin: 18px 0 22px;
    padding: 16px;
    border: 1px solid var(--tc6-border);
    border-radius: 14px;
    background: rgba(255,255,255,.96);
    box-shadow: 0 8px 22px rgba(16,24,40,.06);
    backdrop-filter: blur(8px);
}

.tc6-search-label {
    display: block;
    margin-bottom: 6px;
    font-weight: 700;
}

.tc6-lesson-search {
    width: 100%;
    min-height: 44px;
    padding: 8px 12px;
    border: 1px solid #98a2b3;
    border-radius: 9px;
    background: #fff;
    font: inherit;
}

.tc6-topic-nav {
    display: flex;
    gap: 8px;
    margin-top: 12px;
    padding-bottom: 3px;
    overflow-x: auto;
}

.tc6-topic-nav a {
    flex: 0 0 auto;
    padding: 6px 10px;
    border: 1px solid var(--tc6-border);
    border-radius: 999px;
    color: var(--tc6-primary-dark);
    font-size: 13px;
    font-weight: 700;
    text-decoration: none;
}

.tc6-program-groups {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 22px;
    align-items: start;
}

.tc6-program-group {
    margin: 0;
    scroll-margin-top: 145px;
    border: 1px solid var(--tc6-border);
    border-radius: 16px;
    background: #fff;
    overflow: hidden;
}

.tc6-program-group__header {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 18px 20px;
    background: var(--tc6-soft);
    border-bottom: 1px solid var(--tc6-border);
}

.tc6-program-group__header > span {
    display: grid;
    place-items: center;
    width: 48px;
    height: 48px;
    border-radius: 13px;
    background: var(--tc6-primary);
    color: #fff;
    font-size: 18px;
    font-weight: 800;
}

.tc6-program-group__header h2 {
    margin: 0;
    font-size: 22px;
    line-height: 1.3;
}

.tc6-program-group__header p {
    margin: 2px 0 0;
    color: var(--tc6-muted);
    font-size: 14px;
}

.tc6-program-lessons {
    margin: 0;
    padding: 0;
    list-style: none;
}

.tc6-program-lessons li {
    display: flex;
    align-items: center;
    gap: 13px;
    min-height: 58px;
    padding: 10px 20px;
    border-bottom: 1px solid #eaecf0;
}

.tc6-program-lessons li:last-child {
    border-bottom: 0;
}

.tc6-program-lessons li:hover {
    background: #f9fafb;
}

.tc6-program-lessons__number {
    flex: 0 0 34px;
    color: #667085;
    font-weight: 800;
    text-align: center;
}

.tc6-program-lessons li > div {
    display: flex;
    flex: 1;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}

.tc6-program-lessons a {
    color: #1849a9;
    font-weight: 700;
    text-decoration: none;
}

.tc6-program-lessons a:hover {
    text-decoration: underline;
}

.tc6-program-lessons small {
    flex: 0 0 auto;
    padding: 3px 8px;
    border-radius: 999px;
    background: #eef4ff;
    color: #3538cd;
    font-size: 12px;
    font-weight: 700;
}

.tc6-back-top {
    display: block;
    padding: 9px 20px 12px;
    border-top: 1px solid #eaecf0;
    color: var(--tc6-muted);
    font-size: 13px;
    text-align: right;
    text-decoration: none;
}

.tc6-no-results {
    padding: 30px;
    border: 1px dashed var(--tc6-border);
    border-radius: 12px;
    text-align: center;
}

.tc6-lesson-shell {
    width: min(1080px, calc(100% - 30px));
    margin: 20px auto 56px;
}

.tc6-breadcrumb {
    display: flex;
    flex-wrap: wrap;
    gap: 7px;
    margin-bottom: 12px;
    color: var(--tc6-muted);
    font-size: 14px;
}

.tc6-breadcrumb a {
    color: var(--tc6-primary-dark);
    text-decoration: none;
}

.tc6-lesson-article {
    border: 1px solid var(--tc6-border);
    border-radius: 18px;
    background: #fff;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(16,24,40,.07);
}

.tc6-lesson-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 20px;
    padding: 26px 30px;
    background: linear-gradient(135deg, #eff8ff, #f8fafc);
    border-bottom: 1px solid #b2ccff;
}

.tc6-lesson-header h1 {
    margin: 8px 0;
    font-size: clamp(28px, 4vw, 42px);
    line-height: 1.2;
}

.tc6-lesson-header p {
    max-width: 760px;
    margin: 0;
    color: var(--tc6-muted);
}

.tc6-lesson-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 7px;
}

.tc6-lesson-meta span {
    padding: 4px 9px;
    border: 1px solid #b2ccff;
    border-radius: 999px;
    background: #fff;
    color: var(--tc6-primary-dark);
    font-size: 12px;
    font-weight: 800;
}

.tc6-print-button {
    flex: 0 0 auto;
    padding: 9px 14px;
    border: 1px solid var(--tc6-primary);
    border-radius: 9px;
    background: #fff;
    color: var(--tc6-primary-dark);
    cursor: pointer;
    font-weight: 700;
}

.tc6-featured-image {
    margin: 0;
}

.tc6-featured-image img {
    display: block;
    width: 100%;
    height: auto;
}

.tc6-lesson-toc {
    display: flex;
    gap: 8px;
    align-items: center;
    padding: 13px 24px;
    border-bottom: 1px solid var(--tc6-border);
    background: #fff;
    overflow-x: auto;
}

.tc6-lesson-toc strong,
.tc6-lesson-toc a {
    flex: 0 0 auto;
}

.tc6-lesson-toc a {
    padding: 5px 9px;
    border-radius: 7px;
    background: var(--tc6-soft);
    color: var(--tc6-primary-dark);
    font-size: 13px;
    font-weight: 700;
    text-decoration: none;
}

.tc6-lesson-content {
    padding: 12px 30px 30px;
}

.tc6-lesson-section {
    padding: 26px 0;
    scroll-margin-top: 80px;
    border-bottom: 1px solid #eaecf0;
}

.tc6-lesson-section:last-child {
    border-bottom: 0;
}

.tc6-section-heading {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 15px;
}

.tc6-section-heading > span {
    display: grid;
    place-items: center;
    width: 40px;
    height: 40px;
    border-radius: 11px;
    background: var(--tc6-primary);
    color: #fff;
    font-weight: 800;
}

.tc6-section-heading small {
    display: block;
    color: var(--tc6-muted);
    font-size: 12px;
    font-weight: 700;
    letter-spacing: .04em;
    text-transform: uppercase;
}

.tc6-section-heading h2 {
    margin: 0;
    font-size: 25px;
}

.tc6-objective-list {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
    margin: 0;
    padding: 0;
    list-style: none;
}

.tc6-objective-list li {
    padding: 14px;
    border: 1px solid #b2ccff;
    border-radius: 10px;
    background: #eff8ff;
}

.tc6-prose h3 {
    margin: 22px 0 8px;
    font-size: 20px;
}

.tc6-prose p,
.tc6-prose ul,
.tc6-prose ol {
    margin-top: 0;
    margin-bottom: 14px;
}

.tc6-prose li {
    margin-bottom: 8px;
}

.tc6-prose table {
    display: block;
    width: 100%;
    overflow-x: auto;
    border-collapse: collapse;
}

.tc6-prose th,
.tc6-prose td {
    padding: 8px;
    border: 1px solid var(--tc6-border);
}

.tc6-practice-note,
.tc6-selfcheck {
    margin-bottom: 16px;
    padding: 14px 16px;
    border-left: 4px solid #f79009;
    border-radius: 8px;
    background: #fffaeb;
}

.tc6-selfcheck {
    margin-top: 18px;
    border-left-color: #12b76a;
    background: #ecfdf3;
}

.tc6-selfcheck h3 {
    margin-top: 0;
}

.tc6-solution-box {
    border: 1px solid #b2ccff;
    border-radius: 10px;
    background: #f5f8ff;
    overflow: hidden;
}

.tc6-solution-box summary {
    padding: 14px 16px;
    cursor: pointer;
    color: var(--tc6-primary-dark);
    font-weight: 800;
}

.tc6-solution-box[open] summary {
    border-bottom: 1px solid #b2ccff;
}

.tc6-solution-box .tc6-prose {
    padding: 18px;
    background: #fff;
}

.tc6-lesson-navigation {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    padding: 20px 30px 28px;
    border-top: 1px solid var(--tc6-border);
    background: var(--tc6-soft);
}

.tc6-lesson-navigation a {
    display: flex;
    flex-direction: column;
    padding: 13px;
    border: 1px solid var(--tc6-border);
    border-radius: 10px;
    background: #fff;
    color: var(--tc6-text);
    text-decoration: none;
}

.tc6-lesson-navigation a span {
    color: var(--tc6-muted);
    font-size: 13px;
}

.tc6-lesson-navigation .tc6-next {
    text-align: right;
}

@media (max-width: 900px) {
    .tc6-program-groups {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 760px) {
    .tc6-program,
    .tc6-lesson-shell {
        width: min(100% - 20px, 100%);
        margin-top: 10px;
    }

    .tc6-program-hero,
    .tc6-lesson-header {
        padding: 20px;
    }

    .tc6-program-tools {
        position: static;
    }

    .tc6-program-group__header,
    .tc6-program-lessons li {
        padding-left: 14px;
        padding-right: 14px;
    }

    .tc6-program-lessons li > div {
        display: block;
    }

    .tc6-program-lessons small {
        display: inline-block;
        margin-top: 4px;
    }

    .tc6-lesson-header {
        display: block;
    }

    .tc6-print-button {
        margin-top: 14px;
    }

    .tc6-lesson-content {
        padding: 8px 18px 22px;
    }

    .tc6-objective-list {
        grid-template-columns: 1fr;
    }

    .tc6-lesson-navigation {
        grid-template-columns: 1fr;
        padding: 16px 18px 22px;
    }

    .tc6-lesson-navigation .tc6-next {
        text-align: left;
    }
}

@media print {
    body * {
        visibility: hidden;
    }
    .tc6-single-lesson,
    .tc6-single-lesson * {
        visibility: visible;
    }
    .tc6-single-lesson {
        position: absolute;
        inset: 0;
    }
    .tc6-breadcrumb,
    .tc6-print-button,
    .tc6-lesson-toc,
    .tc6-lesson-navigation,
    header.site-header,
    footer.site-footer {
        display: none !important;
    }
    .tc6-lesson-article {
        border: 0;
        box-shadow: none;
    }
    .tc6-solution-box:not([open]) .tc6-prose {
        display: block;
    }
}

/* Nội dung trình bày theo cấu trúc của plugin Lý thuyết Toán KNTT. */
.tc6-example {
    margin: 18px 0;
    padding: 16px 18px;
    border: 1px solid #fed7aa;
    border-radius: 12px;
    background: #fffaf5;
}

.tc6-example > p:first-child,
.tc6-exercise > p,
.tc6-worked-solution > p:first-child {
    margin-bottom: 12px;
}

.tc6-example .tc6-example-solution {
    margin-top: 10px;
}

.tc6-exercise {
    margin: 0 0 13px;
}

.tc6-exercise p {
    margin: 0;
}

.tc6-worked-solution {
    padding: 16px 0;
    border-bottom: 1px solid #d0d5dd;
}

.tc6-worked-solution:first-child {
    padding-top: 0;
}

.tc6-worked-solution:last-child {
    padding-bottom: 0;
    border-bottom: 0;
}

.tc6-worked-solution p:last-child {
    margin-bottom: 0;
}


/* v1.4.2: lời giải giải thích sâu và dễ theo dõi */
.tc6-solution-explain {
    margin-top: -.25rem;
    padding: .65rem .8rem;
    border-left: 3px solid #d9e6f5;
    background: #f8fbff;
    line-height: 1.75;
}
.tc6-solution-check {
    margin-top: .85rem;
    padding-top: .65rem;
    border-top: 1px dashed #cbd8e6;
    line-height: 1.75;
}
.tc6-application-worked p {
    line-height: 1.78;
}


/* v1.4.4: khối giải thích chi tiết */
.tc6-solution-analysis,
.tc6-application-analysis {
    margin: 14px 0;
    padding: 12px 14px;
    border-left: 4px solid #175cd3;
    border-radius: 6px;
    background: #eff8ff;
}
.tc6-step-explanation,
.tc6-application-explanation {
    margin-top: -4px;
    padding-left: 14px;
    color: #344054;
}
.tc6-result-meaning {
    padding: 10px 12px;
    border-radius: 8px;
    background: #f9fafb;
}
.tc6-application-conclusion {
    font-style: italic;
    color: #344054;
}

/* v1.4.5 - Mobile responsive hardening */
.tc6-study-system-page,
.tc6-study-system-page .site-content,
.tc6-study-system-page .content-area,
.tc6-study-system-page main.site-main,
.tc6-program,
.tc6-program-tools,
.tc6-program-groups,
.tc6-program-group,
.tc6-program-lessons li,
.tc6-program-lessons li > div,
.tc6-lesson-shell,
.tc6-lesson-article,
.tc6-lesson-content,
.tc6-prose {
    min-width: 0;
}

.tc6-study-system-page {
    overflow-x: hidden;
}

.tc6-study-system-page .site-content,
.tc6-study-system-page .content-area,
.tc6-study-system-page main.site-main {
    width: 100%;
}

.tc6-program-group__header h2,
.tc6-program-group__header p,
.tc6-program-lessons a,
.tc6-program-lessons li > div > span,
.tc6-lesson-header h1,
.tc6-prose,
.tc6-section-heading h2 {
    overflow-wrap: anywhere;
}

.tc6-prose img,
.tc6-lesson-content img {
    max-width: 100%;
    height: auto;
}

.tc6-prose pre,
.tc6-lesson-content pre,
.tc6-prose table,
.tc6-lesson-content table,
.tc6-prose mjx-container[display="true"],
.tc6-lesson-content mjx-container[display="true"] {
    max-width: 100%;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

@media (max-width: 760px) {
    .tc6-program,
    .tc6-lesson-shell {
        width: calc(100% - 16px);
        max-width: 100%;
        margin: 6px auto 30px;
    }

    .tc6-program-hero {
        padding: 15px 14px;
        border-radius: 14px;
    }

    .tc6-eyebrow {
        margin-bottom: 4px;
        font-size: 11px;
        letter-spacing: .055em;
    }

    .tc6-program-hero h2 {
        margin-bottom: 7px;
        font-size: 24px;
        line-height: 1.25;
    }

    .tc6-program-hero p {
        font-size: 14px;
        line-height: 1.55;
    }

    .tc6-program-stats {
        display: grid;
        grid-template-columns: repeat(3, minmax(0, 1fr));
        gap: 6px;
        margin-top: 12px;
    }

    .tc6-program-stats span {
        display: flex;
        min-width: 0;
        padding: 7px 5px;
        border-radius: 10px;
        flex-direction: column;
        justify-content: center;
        gap: 1px;
        font-size: 11px;
        line-height: 1.2;
        text-align: center;
    }

    .tc6-program-stats strong {
        font-size: 18px;
        line-height: 1.05;
    }

    .tc6-program-tools {
        position: static;
        width: 100%;
        min-height: 0;
        height: auto;
        margin: 8px 0 10px;
        padding: 8px;
        border-radius: 12px;
        box-shadow: 0 4px 14px rgba(16,24,40,.045);
        backdrop-filter: none;
    }

    .tc6-search-label {
        margin-bottom: 5px;
        font-size: 13px;
    }

    .tc6-lesson-search {
        display: block;
        width: 100%;
        min-height: 44px;
        height: 44px;
        padding: 8px 11px;
        border-radius: 10px;
        box-sizing: border-box;
        font-size: 16px; /* tránh Safari iOS tự zoom khi focus */
        line-height: 1.25;
    }

    .tc6-topic-nav {
        gap: 6px;
        margin-top: 8px;
        padding: 0 0 3px;
        scrollbar-width: thin;
    }

    .tc6-topic-nav a {
        min-height: 38px;
        padding: 7px 10px;
        display: inline-flex;
        align-items: center;
        font-size: 12px;
        line-height: 1.2;
    }

    .tc6-program-groups {
        gap: 12px;
    }

    .tc6-program-group {
        border-radius: 13px;
    }

    .tc6-program-group__header {
        gap: 10px;
        padding: 12px;
    }

    .tc6-program-group__header > span {
        width: 38px;
        height: 38px;
        border-radius: 10px;
        font-size: 14px;
    }

    .tc6-program-group__header h2 {
        font-size: 18px;
        line-height: 1.3;
    }

    .tc6-program-group__header p {
        margin-top: 2px;
        font-size: 12px;
        line-height: 1.4;
    }

    .tc6-program-lessons li {
        display: grid;
        grid-template-columns: 30px minmax(0, 1fr);
        gap: 6px;
        min-height: 46px;
        padding: 7px 10px;
        align-items: start;
    }

    .tc6-program-lessons__number {
        width: 30px;
        padding-top: 2px;
        font-size: 12px;
    }

    .tc6-program-lessons li > div {
        display: block;
        min-width: 0;
    }

    .tc6-program-lessons a,
    .tc6-program-lessons li > div > span {
        font-size: 14px;
        line-height: 1.42;
    }

    .tc6-program-lessons small {
        margin-top: 4px;
        padding: 2px 6px;
        font-size: 10px;
    }

    .tc6-back-top {
        padding: 7px 10px 9px;
        font-size: 11px;
    }

    .tc6-lesson-article {
        border-radius: 13px;
        box-shadow: 0 4px 16px rgba(16,24,40,.05);
    }

    .tc6-lesson-header {
        padding: 15px 14px;
    }

    .tc6-lesson-header h1 {
        margin: 6px 0;
        font-size: 25px;
        line-height: 1.25;
    }

    .tc6-lesson-header p {
        font-size: 14px;
        line-height: 1.55;
    }

    .tc6-lesson-meta {
        gap: 5px;
    }

    .tc6-lesson-meta span {
        padding: 3px 7px;
        font-size: 10px;
    }

    .tc6-print-button {
        min-height: 40px;
        margin-top: 10px;
        padding: 7px 11px;
        font-size: 13px;
    }

    .tc6-lesson-toc {
        gap: 6px;
        padding: 9px 11px;
    }

    .tc6-lesson-toc strong,
    .tc6-lesson-toc a {
        font-size: 12px;
    }

    .tc6-lesson-content {
        padding: 4px 13px 18px;
    }

    .tc6-lesson-section {
        padding: 18px 0;
    }

    .tc6-section-heading {
        gap: 9px;
        margin-bottom: 11px;
        align-items: flex-start;
    }

    .tc6-section-heading > span {
        width: 34px;
        height: 34px;
        border-radius: 9px;
        flex: 0 0 34px;
        font-size: 13px;
    }

    .tc6-section-heading small {
        font-size: 10px;
        line-height: 1.25;
    }

    .tc6-section-heading h2 {
        font-size: 20px;
        line-height: 1.3;
    }

    .tc6-prose {
        font-size: 15px;
        line-height: 1.72;
    }

    .tc6-prose h3 {
        margin: 18px 0 7px;
        font-size: 18px;
    }

    .tc6-objective-list {
        gap: 7px;
    }

    .tc6-objective-list li,
    .tc6-example,
    .tc6-practice-note,
    .tc6-selfcheck,
    .tc6-solution-analysis,
    .tc6-application-analysis {
        padding: 11px 12px;
        border-radius: 9px;
    }

    .tc6-solution-box summary {
        min-height: 44px;
        padding: 11px 12px;
        display: flex;
        align-items: center;
        font-size: 14px;
    }

    .tc6-solution-box .tc6-prose {
        padding: 12px;
    }

    .tc6-step-explanation,
    .tc6-application-explanation {
        padding-left: 9px;
    }

    .tc6-lesson-navigation {
        gap: 8px;
        padding: 12px 13px 16px;
    }

    .tc6-lesson-navigation a {
        min-height: 54px;
        padding: 10px;
        font-size: 14px;
    }
}

@media (max-width: 390px) {
    .tc6-program,
    .tc6-lesson-shell {
        width: calc(100% - 12px);
    }

    .tc6-program-stats {
        grid-template-columns: 1fr;
    }

    .tc6-program-stats span {
        flex-direction: row;
        gap: 5px;
    }

    .tc6-program-hero h2,
    .tc6-lesson-header h1 {
        font-size: 22px;
    }
}


/* Trang tổng quát Ôn thi vào lớp 6 môn Toán */
.tc6-hub {
    scroll-behavior: smooth;
}

.tc6-hub-hero {
    padding: clamp(26px, 5vw, 48px);
    border: 1px solid #b2ccff;
    border-radius: 22px;
    background: linear-gradient(135deg, #eaf2ff 0%, #f8fbff 55%, #fff 100%);
    box-shadow: 0 16px 36px rgba(16, 24, 40, .06);
}

.tc6-hub-hero h1 {
    margin: 0 0 12px;
    color: var(--tc6-text);
    font-size: clamp(32px, 5vw, 52px);
    line-height: 1.12;
}

.tc6-hub-hero > p {
    max-width: 900px;
    margin: 0;
    color: var(--tc6-muted);
    font-size: 17px;
}

.tc6-hub-choice-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
    margin-top: 26px;
}

.tc6-hub-choice {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 12px 14px;
    align-items: start;
    min-height: 152px;
    padding: 20px;
    border: 1px solid #c7d7fe;
    border-radius: 16px;
    background: #fff;
    color: var(--tc6-text) !important;
    text-decoration: none !important;
    box-shadow: 0 7px 20px rgba(16, 24, 40, .05);
    transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
}

.tc6-hub-choice:hover {
    transform: translateY(-2px);
    border-color: #84adff;
    box-shadow: 0 14px 28px rgba(16, 24, 40, .09);
}

.tc6-hub-choice__icon {
    display: grid;
    place-items: center;
    width: 46px;
    height: 46px;
    border-radius: 12px;
    background: #eff4ff;
    font-size: 24px;
}

.tc6-hub-choice span:nth-child(2) {
    display: grid;
    gap: 4px;
}

.tc6-hub-choice strong {
    font-size: 18px;
    line-height: 1.4;
}

.tc6-hub-choice small {
    color: var(--tc6-muted);
    font-size: 14px;
}

.tc6-hub-choice b {
    grid-column: 2;
    color: var(--tc6-primary-dark);
    font-size: 14px;
}

.tc6-hub-section {
    scroll-margin-top: 24px;
    margin-top: 38px;
}

.tc6-hub-section-heading {
    margin-bottom: 20px;
    padding: 26px;
    border: 1px solid #d0d5dd;
    border-radius: 18px;
    background: #f8fafc;
}

.tc6-hub-section-heading h2 {
    margin: 0 0 10px;
    font-size: clamp(28px, 4vw, 40px);
    line-height: 1.2;
}

.tc6-hub-section-heading p {
    max-width: 860px;
    margin: 0;
    color: var(--tc6-muted);
}

.tc6-exam-guide {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px;
    margin-bottom: 24px;
}

.tc6-exam-guide div {
    display: grid;
    gap: 6px;
    padding: 17px;
    border: 1px solid #e4e7ec;
    border-radius: 14px;
    background: #fff;
}

.tc6-exam-guide strong {
    color: var(--tc6-primary-dark);
}

.tc6-exam-guide span {
    color: var(--tc6-muted);
    font-size: 14px;
    line-height: 1.55;
}

.tc6-hub-exam-list .tc6e-groups {
    margin-top: 0;
}

.tc6-hub-exam-missing {
    padding: 22px;
    border: 1px solid #fedf89;
    border-radius: 14px;
    background: #fffaeb;
}

.tc6-hub-exam-missing p {
    margin: 6px 0 0;
    color: #7a2e0e;
}

@media (max-width: 760px) {
    .tc6-hub-choice-grid,
    .tc6-exam-guide {
        grid-template-columns: 1fr;
    }

    .tc6-hub-choice {
        min-height: 0;
    }
}