:root {
    --learn-bg: #f4f6f8;
    --learn-surface: #ffffff;
    --learn-surface-soft: #f8fafc;
    --learn-surface-muted: #eef2f6;
    --learn-ink: #17202c;
    --learn-ink-soft: #38465a;
    --learn-muted: #6f7c8d;
    --learn-subtle: #8a95a4;
    --learn-line: rgba(23, 32, 44, 0.11);
    --learn-line-strong: rgba(23, 32, 44, 0.2);
    --learn-primary: #17202c;
    --learn-primary-bg: #17202c;
    --learn-primary-ink: #ffffff;
    --learn-blue: #2563eb;
    --learn-success: #0f8f68;
    --learn-danger: #c2413b;
    --learn-warning: #b7791f;
    --learn-focus-ring: 0 0 0 4px rgba(37, 99, 235, 0.18);
    --learn-shadow: 0 18px 42px rgba(30, 41, 59, 0.08);
    --learn-shadow-soft: 0 10px 26px rgba(30, 41, 59, 0.07);
    --learn-radius: 8px;
    --learn-font: "Inter", "Avenir Next", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}

body.learn-page.dark {
    --learn-bg: #101419;
    --learn-surface: #181e27;
    --learn-surface-soft: #202835;
    --learn-surface-muted: #111821;
    --learn-ink: #f4f7fb;
    --learn-ink-soft: #c8d1de;
    --learn-muted: #9aa6b6;
    --learn-subtle: #828e9f;
    --learn-line: rgba(255, 255, 255, 0.1);
    --learn-line-strong: rgba(255, 255, 255, 0.18);
    --learn-primary: #f4f7fb;
    --learn-primary-bg: #f4f7fb;
    --learn-primary-ink: #101419;
    --learn-blue: #8fb7ff;
    --learn-success: #77d7b5;
    --learn-danger: #f29a94;
    --learn-warning: #e6bd73;
    --learn-focus-ring: 0 0 0 4px rgba(143, 183, 255, 0.2);
    --learn-shadow: 0 18px 44px rgba(0, 0, 0, 0.28);
    --learn-shadow-soft: 0 10px 28px rgba(0, 0, 0, 0.2);
}

body.learn-page,
body.learn-page * {
    box-sizing: border-box;
}

body.learn-page {
    margin: 0;
    min-height: 100vh;
    background: var(--learn-bg);
    color: var(--learn-ink);
    font-family: var(--learn-font);
}

body.learn-page .wrapper,
body.learn-page .main-container {
    background: var(--learn-bg) !important;
}

body.learn-page .left-side {
    border-right: 1px solid var(--learn-line);
    background: var(--learn-surface) !important;
    color: var(--learn-muted);
    box-shadow: none;
}

body.learn-page .header {
    border-bottom: 1px solid var(--learn-line);
    background: color-mix(in srgb, var(--learn-surface) 92%, transparent) !important;
    box-shadow: none;
    backdrop-filter: blur(14px);
}

body.learn-page .header::before,
body.learn-page .header::after {
    background: var(--learn-bg) !important;
    box-shadow: none !important;
}

body.learn-page .header-link {
    border-bottom: 2px solid transparent;
    background: transparent !important;
    color: var(--learn-muted) !important;
    transition: background 180ms ease, color 180ms ease, border-color 180ms ease;
}

body.learn-page .header-link:hover,
body.learn-page .header-link.active {
    background: var(--learn-surface-soft) !important;
    color: var(--learn-ink) !important;
}

body.learn-page .header-link.active {
    border-bottom-color: var(--learn-blue);
}

body.learn-page .header-link i,
body.learn-page .header-user,
body.learn-page .header-user * {
    color: inherit !important;
}

body.learn-page a {
    color: inherit;
}

body.learn-page button,
body.learn-page textarea,
body.learn-page input,
body.learn-page select {
    font: inherit;
}

.learn-shell {
    width: min(1520px, 100%);
    margin: 0 auto;
    padding: 14px;
}

.learn-appbar,
.learn-dashboard,
.learn-path-panel,
.learn-stage,
.learn-workbench-dock,
.learn-lab-card,
.learn-selection-popover,
.learn-auto-tip__panel,
.learn-guide-hub__panel {
    border: 1px solid var(--learn-line);
    border-radius: var(--learn-radius);
    background: var(--learn-surface);
    box-shadow: var(--learn-shadow-soft);
}

.learn-appbar {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 18px;
    align-items: center;
    padding: 14px;
}

.learn-brand {
    display: flex;
    gap: 14px;
    min-width: 0;
}

.learn-brand__mark {
    width: 46px;
    height: 46px;
    flex: 0 0 46px;
    display: grid;
    place-items: center;
    border-radius: var(--learn-radius);
    background: var(--learn-primary-bg);
    color: var(--learn-primary-ink) !important;
    font-size: 20px;
    font-weight: 850;
}

.learn-brand__copy {
    min-width: 0;
}

.learn-kicker,
.learn-tags,
.learn-appbar__tools,
.learn-stage__meta-row,
.learn-stage__chips,
.learn-stage__footer,
.learn-note-toolbar,
.learn-capture-item__actions,
.learn-ai-grid,
.learn-practice-actions,
.learn-verify-block,
.learn-answer-guide__actions,
.learn-quest-actions,
.learn-case-card__actions {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
}

.learn-appbar__tools {
    justify-content: flex-end;
}

.learn-title {
    margin: 5px 0 0;
    color: var(--learn-ink);
    font-size: clamp(22px, 2.1vw, 34px);
    font-weight: 850;
    line-height: 1.14;
    letter-spacing: 0;
}

.learn-summary {
    max-width: 880px;
    margin: 6px 0 0;
    color: var(--learn-muted);
    font-size: 14px;
    line-height: 1.58;
}

body.learn-page.learn-kind-tutorial .learn-summary {
    display: -webkit-box;
    overflow: hidden;
    max-width: 760px;
    -webkit-line-clamp: 1;
    -webkit-box-orient: vertical;
}

body.learn-page.learn-kind-tutorial .learn-appbar {
    padding: 12px;
}

body.learn-page.learn-kind-tutorial .learn-title {
    font-size: clamp(21px, 1.9vw, 30px);
}

body.learn-page.learn-kind-tutorial .learn-tags {
    display: none;
}

.learn-tags {
    margin-top: 8px;
}

.learn-pill,
.learn-tag,
.learn-top-btn,
.learn-action-btn,
.learn-nav-btn,
.learn-count-pill,
.learn-stage__kind,
.learn-stage__count,
.learn-stage__chip,
.learn-panel-head__hint,
.learn-axis-link,
.learn-inline-link,
.learn-fav-btn,
.learn-selection-popover__btn,
.learn-guide-link,
.learn-auto-tip__button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 7px;
    min-height: 32px;
    border: 1px solid var(--learn-line);
    border-radius: var(--learn-radius);
    background: var(--learn-surface-soft);
    color: var(--learn-ink-soft);
    padding: 7px 10px;
    font-size: 12px;
    font-weight: 760;
    line-height: 1;
    text-decoration: none;
}

.learn-pill--teal,
.learn-pill--green,
.learn-stage__count,
.learn-panel-head__hint,
.learn-count-pill {
    color: var(--learn-success);
    background: color-mix(in srgb, var(--learn-success) 8%, var(--learn-surface));
}

.learn-pill--gold,
.learn-stage__kind {
    color: var(--learn-warning);
    background: color-mix(in srgb, var(--learn-warning) 10%, var(--learn-surface));
}

.learn-pill--link,
.learn-stage__chip,
.learn-tag:hover {
    color: var(--learn-blue);
}

.learn-top-btn,
.learn-action-btn,
.learn-nav-btn,
.learn-axis-link,
.learn-inline-link,
.learn-fav-btn,
.learn-guide-link,
.learn-selection-popover__btn,
.learn-auto-tip__button {
    min-height: 38px;
    background: var(--learn-surface);
    color: var(--learn-ink);
    cursor: pointer;
    transition: transform 160ms ease, border-color 160ms ease, box-shadow 160ms ease, background 160ms ease;
}

.learn-top-btn__mark {
    display: inline-flex;
    min-height: 20px;
    align-items: center;
    border-radius: 999px;
    background: var(--learn-surface-muted);
    color: var(--learn-muted);
    padding: 3px 7px;
    font-size: 10px;
    font-weight: 850;
}

.learn-action-btn--primary,
.learn-nav-btn--primary,
.learn-axis-link--primary,
.learn-inline-link--strong,
.learn-guide-link--primary {
    border-color: var(--learn-primary-bg);
    background: var(--learn-primary-bg);
    color: var(--learn-primary-ink) !important;
}

.learn-guide-link--accent {
    border-color: color-mix(in srgb, var(--learn-blue) 55%, var(--learn-line));
    color: var(--learn-blue);
}

.learn-guide-link--soft,
.learn-action-btn--ghost {
    background: var(--learn-surface-soft);
}

.learn-action-btn--icon {
    width: 36px;
    min-width: 36px;
    padding: 0;
}

.learn-top-btn:hover,
.learn-action-btn:hover,
.learn-nav-btn:hover,
.learn-tag:hover,
.learn-outline__item:hover,
.learn-course-node:hover,
.learn-branch-node:hover,
.learn-choice-card:hover,
.learn-capture-item:hover,
.learn-axis-link:hover,
.learn-inline-link:hover,
.learn-fav-btn:hover,
.learn-guide-link:hover,
.learn-selection-popover__btn:hover {
    transform: translateY(-1px);
    border-color: var(--learn-line-strong);
    box-shadow: var(--learn-shadow-soft);
}

.learn-top-btn:focus-visible,
.learn-action-btn:focus-visible,
.learn-nav-btn:focus-visible,
.learn-outline__item:focus-visible,
.learn-fill-input:focus,
.learn-matching-select:focus,
.learn-note:focus,
.learn-axis-link:focus-visible,
.learn-inline-link:focus-visible,
.learn-guide-link:focus-visible,
.learn-workbench-purpose:focus-visible,
.learn-workbench-filter:focus-visible,
.learn-workbench-loop-chip:focus-visible,
.learn-workbench-star:focus-visible,
.learn-workbench-history-row:focus-visible,
.learn-os-purpose:focus-visible,
.learn-mission-row__state:focus-visible,
.learn-mission-row__body:focus-visible,
.learn-mission-dots button:focus-visible,
.learn-memory-item__main:focus-visible,
.learn-linked-target:focus-visible {
    outline: none;
    box-shadow: var(--learn-focus-ring);
}

.learn-top-btn:disabled,
.learn-action-btn:disabled,
.learn-nav-btn:disabled {
    cursor: not-allowed;
    opacity: 0.5;
    transform: none;
    box-shadow: none;
}

.learn-shell .collectable {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.learn-shell .collectable .col-ran {
    display: inline-flex;
    min-height: 38px;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--learn-line);
    border-radius: var(--learn-radius);
    background: var(--learn-surface);
    color: var(--learn-ink);
    padding: 7px 10px;
    font-size: 12px;
    font-weight: 760;
}

.learn-shell .collectable .col-ran i,
.learn-shell .collectable .col-ran-pl {
    display: none;
}

.learn-shell .collectable #cr-pin::before { content: "钉住"; }
.learn-shell .collectable #cr-col::before { content: "收藏"; }

.learn-dashboard {
    display: grid;
    grid-template-columns: minmax(320px, 1fr) minmax(300px, 0.86fr) minmax(340px, 1fr);
    gap: 10px;
    align-items: stretch;
    margin-top: 12px;
    padding: 10px;
}

body.learn-page.learn-kind-tutorial .learn-dashboard {
    display: none;
}

.learn-dashboard__mission,
.learn-stat-strip,
.learn-week-panel {
    border: 1px solid var(--learn-line);
    border-radius: var(--learn-radius);
    background: var(--learn-surface-soft);
}

.learn-dashboard__mission {
    display: grid;
    grid-template-columns: 96px minmax(0, 1fr);
    gap: 14px;
    align-items: center;
    padding: 12px;
}

.learn-progress-ring {
    --learn-progress: 0deg;
    width: 88px;
    height: 88px;
    display: grid;
    place-items: center;
    padding: 8px;
    border-radius: 50%;
    background:
        radial-gradient(circle at 50% 50%, var(--learn-surface) 0 58%, transparent 59%),
        conic-gradient(from -90deg, var(--learn-blue) 0deg, var(--learn-success) var(--learn-progress), rgba(111, 124, 141, 0.18) var(--learn-progress), rgba(111, 124, 141, 0.18) 360deg);
}

.learn-progress-ring__core {
    width: 100%;
    height: 100%;
    display: grid;
    place-items: center;
    align-content: center;
    border: 1px solid var(--learn-line);
    border-radius: 50%;
    background: var(--learn-surface);
}

.learn-progress-ring__value {
    color: var(--learn-ink);
    font-size: 22px;
    font-weight: 850;
    line-height: 1;
}

.learn-progress-ring__label {
    margin-top: 5px;
    color: var(--learn-muted);
    font-size: 12px;
    font-weight: 760;
}

.learn-card__eyebrow,
.learn-stat-card__label,
.learn-micro-card__label,
.learn-practice-card__eyebrow,
.learn-question__eyebrow,
.learn-quest-hero__eyebrow {
    color: var(--learn-muted);
    font-size: 11px;
    font-weight: 850;
    letter-spacing: 0;
    line-height: 1.2;
}

.learn-card__title {
    margin-top: 4px;
    color: var(--learn-ink);
    font-size: 17px;
    font-weight: 850;
}

.learn-mission__text {
    margin-top: 6px;
    color: var(--learn-ink-soft);
    font-size: 14px;
    font-weight: 650;
    line-height: 1.62;
}

.learn-stat-strip {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 8px;
    padding: 8px;
}

.learn-stat-card {
    min-width: 0;
    border: 1px solid var(--learn-line);
    border-radius: var(--learn-radius);
    background: var(--learn-surface);
    padding: 10px;
}

.learn-stat-card__value {
    margin-top: 8px;
    color: var(--learn-ink);
    font-size: clamp(23px, 2vw, 32px);
    font-weight: 850;
    line-height: 1;
}

.learn-stat-card__sub {
    margin-top: 8px;
    color: var(--learn-muted);
    font-size: 12px;
    line-height: 1.45;
}

.learn-week-panel {
    padding: 12px;
}

.learn-week-panel__head,
.learn-panel-head,
.learn-rank-track__head,
.learn-course-axis__meta,
.learn-branch-group__head,
.learn-question__head,
.learn-practice-card__head,
.learn-case-card__head,
.learn-answer-guide__head,
.learn-auto-tip__head,
.learn-guide-hub__head {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 12px;
}

.learn-progress__text {
    color: var(--learn-ink);
    font-size: 13px;
    font-weight: 760;
    white-space: nowrap;
}

.learn-progress,
.learn-rank-track__rail {
    position: relative;
    height: 8px;
    overflow: hidden;
    border-radius: 999px;
    background: rgba(111, 124, 141, 0.18);
}

.learn-progress {
    margin-top: 12px;
}

.learn-progress__bar,
.learn-rank-track__bar {
    width: 0;
    height: 100%;
    border-radius: inherit;
    background: linear-gradient(90deg, var(--learn-blue), var(--learn-success));
    transition: width 360ms cubic-bezier(.2,.8,.2,1);
}

.learn-rank-track {
    margin-top: 10px;
}

.learn-rank-track__next {
    display: block;
    color: var(--learn-muted);
    font-size: 12px;
    font-weight: 650;
}

.learn-rank-track__rail {
    margin-top: 8px;
}

.learn-week-grid {
    display: grid;
    grid-template-columns: repeat(7, minmax(0, 1fr));
    gap: 7px;
    margin-top: 12px;
}

.learn-week-cell {
    min-height: 48px;
    border: 1px solid var(--learn-line);
    border-radius: var(--learn-radius);
    background: var(--learn-surface);
    padding: 6px 4px;
    text-align: center;
}

.learn-week-cell__day {
    color: var(--learn-muted);
    font-size: 11px;
    font-weight: 760;
}

.learn-week-cell__dot {
    width: 12px;
    height: 12px;
    margin: 6px auto 4px;
    border: 1px solid var(--learn-line);
    border-radius: 50%;
    background: var(--learn-surface-soft);
}

.learn-week-cell.is-hit .learn-week-cell__dot {
    border-color: transparent;
    background: linear-gradient(135deg, var(--learn-blue), var(--learn-success));
}

.learn-week-cell__meta {
    color: var(--learn-muted);
    font-size: 10px;
}

.learn-workspace {
    display: grid;
    grid-template-columns: 286px minmax(0, 1fr) 360px;
    gap: 12px;
    align-items: start;
    margin-top: 12px;
}

body.learn-page.learn-kind-tutorial .learn-workspace {
    grid-template-columns: 270px minmax(0, 1fr);
}

.learn-path-panel,
.learn-lab-card {
    padding: 16px;
}

.learn-asset-section {
    margin-top: 18px;
    padding-top: 16px;
    border-top: 1px solid var(--learn-line);
}

.learn-asset-panel {
    display: grid;
    gap: 10px;
    margin-top: 10px;
}

.learn-asset-tabs {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 6px;
    padding: 3px;
    border: 1px solid var(--learn-line);
    border-radius: var(--learn-radius);
    background: var(--learn-surface-soft);
}

.learn-asset-tab {
    min-width: 0;
    min-height: 30px;
    border: 0;
    border-radius: calc(var(--learn-radius) - 2px);
    background: transparent;
    color: var(--learn-muted);
    padding: 6px 4px;
    font-size: 11px;
    font-weight: 820;
    cursor: pointer;
}

.learn-asset-tab.is-active {
    background: var(--learn-surface);
    color: var(--learn-ink);
    box-shadow: 0 1px 7px rgba(30, 41, 59, 0.08);
}

.learn-asset-list {
    display: grid;
    gap: 8px;
}

.learn-asset-item {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 8px;
    align-items: center;
    border: 1px solid var(--learn-line);
    border-radius: var(--learn-radius);
    background: var(--learn-surface-soft);
    padding: 8px;
}

.learn-asset-item__main {
    min-width: 0;
    border: 0;
    background: transparent;
    padding: 0;
    text-align: left;
    cursor: pointer;
}

.learn-asset-item__main span,
.learn-asset-item__main small {
    display: block;
    color: var(--learn-muted);
    font-size: 11px;
    line-height: 1.35;
}

.learn-asset-item__main strong {
    display: block;
    overflow: hidden;
    margin: 2px 0;
    color: var(--learn-ink);
    font-size: 12px;
    font-weight: 850;
    line-height: 1.35;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.learn-asset-item__actions {
    display: flex;
    align-items: center;
}

.learn-mini-btn {
    min-height: 28px;
    border: 1px solid var(--learn-line);
    border-radius: var(--learn-radius);
    background: var(--learn-surface);
    color: var(--learn-ink-soft);
    padding: 5px 8px;
    font-size: 11px;
    font-weight: 820;
    cursor: pointer;
}

.learn-path-panel,
.learn-lab-panel {
    position: sticky;
    top: 12px;
    max-height: calc(100vh - 24px);
    overflow: auto;
}

.learn-lab-panel {
    display: grid;
    gap: 12px;
}

.learn-outline,
.learn-badge-list,
.learn-capture-list,
.learn-tip-bank,
.learn-case-bank,
.learn-course-axis,
.learn-branch-tree,
.learn-branch-nodes,
.learn-auto-tip__list,
.learn-guide-hub__actions {
    display: grid;
    gap: 9px;
}

.learn-outline,
.learn-badge-list,
.learn-capture-list {
    margin-top: 12px;
}

.learn-outline__item,
.learn-course-node,
.learn-branch-node,
.learn-badge,
.learn-capture-item,
.learn-tip-card,
.learn-case-card,
.learn-auto-tip-card,
.learn-guide-suggestion-card,
.learn-empty {
    border: 1px solid var(--learn-line);
    border-radius: var(--learn-radius);
    background: var(--learn-surface-soft);
}

.learn-outline__item,
.learn-course-node,
.learn-branch-node {
    width: 100%;
    min-height: 54px;
    color: var(--learn-ink);
    padding: 10px;
    text-align: left;
    cursor: pointer;
    transition: transform 160ms ease, border-color 160ms ease, background 160ms ease, box-shadow 160ms ease;
}

.learn-outline__item.is-active,
.learn-course-node.is-current,
.learn-branch-node.is-active {
    border-color: color-mix(in srgb, var(--learn-blue) 45%, var(--learn-line));
    background: color-mix(in srgb, var(--learn-blue) 8%, var(--learn-surface));
}

.learn-outline__item.is-complete,
.learn-course-node.is-done,
.learn-branch-node.is-complete {
    border-color: color-mix(in srgb, var(--learn-success) 35%, var(--learn-line));
}

.learn-outline__item.is-marked,
.learn-branch-node.is-marked {
    border-color: color-mix(in srgb, var(--learn-warning) 34%, var(--learn-line));
}

.learn-outline__title,
.learn-course-node strong,
.learn-branch-node strong,
.learn-badge__title {
    display: block;
    color: var(--learn-ink);
    font-size: 13px;
    font-weight: 820;
    line-height: 1.3;
}

.learn-outline__summary,
.learn-course-node small,
.learn-branch-node small,
.learn-badge__desc,
.learn-branch-group__goal {
    display: block;
    margin-top: 4px;
    color: var(--learn-muted);
    font-size: 12px;
    line-height: 1.45;
}

.learn-branch-node__loop {
    display: flex;
    flex-wrap: wrap;
    gap: 5px;
    margin-top: 8px;
}

.learn-branch-node__loop i {
    min-height: 20px;
    border: 1px solid var(--learn-line);
    border-radius: 999px;
    background: var(--learn-surface);
    color: var(--learn-muted);
    padding: 3px 6px;
    font-size: 10px;
    font-style: normal;
    font-weight: 820;
}

.learn-branch-node__loop i.is-strong {
    border-color: color-mix(in srgb, var(--learn-blue) 35%, var(--learn-line));
    background: color-mix(in srgb, var(--learn-blue) 8%, var(--learn-surface));
    color: var(--learn-blue);
}

.learn-branch-node__mark {
    color: var(--learn-warning) !important;
}

.learn-course-axis__meta {
    margin-bottom: 8px;
    color: var(--learn-muted);
    font-size: 12px;
}

.learn-course-axis__meta strong {
    color: var(--learn-ink);
}

.learn-course-axis__rail {
    display: grid;
    gap: 8px;
}

.learn-course-node {
    display: grid;
    grid-template-columns: 32px minmax(0, 1fr);
    gap: 10px;
    align-items: center;
    text-decoration: none;
}

.learn-course-node__index,
.learn-branch-node__dot,
.learn-badge__icon,
.learn-fill-row__index,
.learn-sequence-item__index,
.learn-choice-card__marker,
.learn-answer-step__index,
.learn-quest-step__num {
    display: grid;
    place-items: center;
    border: 1px solid var(--learn-line);
    border-radius: var(--learn-radius);
    background: var(--learn-surface);
    color: var(--learn-muted);
    font-size: 12px;
    font-weight: 820;
}

.learn-course-node__index,
.learn-badge__icon,
.learn-fill-row__index,
.learn-sequence-item__index,
.learn-choice-card__marker,
.learn-answer-step__index,
.learn-quest-step__num {
    width: 32px;
    height: 32px;
}

.learn-course-axis__nav {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 10px;
}

.learn-branch-group {
    border-top: 1px solid var(--learn-line);
    padding-top: 12px;
}

.learn-branch-group:first-child {
    border-top: 0;
    padding-top: 0;
}

.learn-branch-node {
    display: grid;
    grid-template-columns: 18px minmax(0, 1fr);
    gap: 10px;
    align-items: start;
}

.learn-branch-node__dot {
    width: 14px;
    height: 14px;
    margin-top: 2px;
    border-radius: 50%;
}

.learn-branch-node.is-complete .learn-branch-node__dot {
    border-color: var(--learn-success);
    background: var(--learn-success);
}

.learn-branch-node.is-marked .learn-branch-node__dot {
    border-color: var(--learn-warning);
    background: color-mix(in srgb, var(--learn-warning) 24%, var(--learn-surface));
}

body.learn-page.learn-kind-tutorial .learn-path-panel {
    padding: 12px;
}

body.learn-page.learn-kind-tutorial .learn-axis-section,
body.learn-page.learn-kind-tutorial .learn-branch-section {
    margin-bottom: 14px;
}

body.learn-page.learn-kind-tutorial .learn-outline,
body.learn-page.learn-kind-tutorial .learn-course-axis,
body.learn-page.learn-kind-tutorial .learn-branch-tree,
body.learn-page.learn-kind-tutorial .learn-branch-nodes {
    gap: 7px;
}

body.learn-page.learn-kind-tutorial .learn-outline__item,
body.learn-page.learn-kind-tutorial .learn-course-node,
body.learn-page.learn-kind-tutorial .learn-branch-node {
    min-height: 42px;
    padding: 8px;
}

body.learn-page.learn-kind-tutorial .learn-outline__summary,
body.learn-page.learn-kind-tutorial .learn-course-node small,
body.learn-page.learn-kind-tutorial .learn-branch-group__goal,
body.learn-page.learn-kind-tutorial .learn-branch-node__loop {
    display: none !important;
}

body.learn-page.learn-kind-tutorial .learn-outline__title,
body.learn-page.learn-kind-tutorial .learn-course-node strong,
body.learn-page.learn-kind-tutorial .learn-branch-node strong {
    display: -webkit-box;
    overflow: hidden;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}

body.learn-page.learn-kind-tutorial .learn-outline__item {
    display: grid;
    gap: 7px;
}

.learn-outline__mission {
    display: flex;
    gap: 5px;
}

.learn-outline__mission i {
    width: 8px;
    height: 8px;
    border: 1px solid var(--learn-line);
    border-radius: 50%;
    background: var(--learn-surface);
}

body.learn-page.learn-kind-tutorial .learn-outline__item.is-mission-complete {
    border-color: color-mix(in srgb, var(--learn-success) 42%, var(--learn-line));
}

body.learn-page.learn-kind-tutorial .learn-branch-node.is-mission-complete .learn-branch-node__dot {
    border-color: var(--learn-success);
    background: var(--learn-success);
}

body.learn-page.learn-kind-tutorial .learn-branch-node small {
    margin-top: 2px;
    font-size: 11px;
}

.learn-badge {
    display: flex;
    gap: 10px;
    align-items: center;
    padding: 10px;
}

.learn-badge__icon {
    flex: 0 0 32px;
    color: var(--learn-blue);
}

.learn-stage {
    min-height: 72vh;
    padding: 20px;
}

.learn-stage__head {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 180px;
    gap: 16px;
    align-items: start;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--learn-line);
}

.learn-stage__title {
    margin: 12px 0 0;
    color: var(--learn-ink);
    font-size: clamp(27px, 3vw, 44px);
    font-weight: 850;
    line-height: 1.12;
    letter-spacing: 0;
}

.learn-stage__summary {
    margin: 10px 0 0;
    color: var(--learn-ink-soft);
    font-size: 15px;
    line-height: 1.72;
}

.learn-stage__chips {
    margin-top: 12px;
}

.learn-stage__micro {
    display: grid;
    gap: 10px;
}

body.learn-page.learn-kind-tutorial .learn-stage {
    min-height: 78vh;
    padding: 18px;
}

body.learn-page.learn-kind-tutorial .learn-stage__head {
    grid-template-columns: minmax(0, 1fr);
    gap: 8px;
    padding-bottom: 12px;
}

body.learn-page.learn-kind-tutorial .learn-stage__title {
    margin-top: 8px;
    font-size: clamp(24px, 2.4vw, 34px);
    line-height: 1.16;
}

body.learn-page.learn-kind-tutorial .learn-stage__summary {
    display: -webkit-box;
    overflow: hidden;
    margin-top: 8px;
    color: var(--learn-ink-soft);
    font-size: 14px;
    line-height: 1.55;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}

body.learn-page.learn-kind-tutorial .learn-stage__micro {
    display: none;
}

.learn-workbench-dock {
    display: grid;
    grid-template-columns: minmax(150px, 0.72fr) minmax(320px, 1.25fr) auto;
    gap: 10px;
    align-items: center;
    margin-top: 12px;
    padding: 10px;
    animation: learnPanelIn 220ms ease both;
}

.learn-workbench-dock[hidden],
.learn-workbench-modal[hidden] {
    display: none;
}

.learn-workbench-dock__main {
    min-width: 0;
}

.learn-workbench-dock__main span,
.learn-workbench-dock__main small,
.learn-workbench-panel__head span,
.learn-workbench-summary__copy span,
.learn-workbench-summary__copy small,
.learn-workbench-section-head span,
.learn-workbench-item__meta small,
.learn-workbench-history-row small {
    display: block;
    color: var(--learn-muted);
    font-size: 11px;
    font-weight: 780;
    line-height: 1.35;
}

.learn-workbench-dock__main strong,
.learn-workbench-panel__head strong,
.learn-workbench-summary__copy strong {
    display: block;
    overflow: hidden;
    margin-top: 2px;
    color: var(--learn-ink);
    font-size: 15px;
    font-weight: 880;
    line-height: 1.3;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.learn-workbench-dock__main small {
    margin-top: 2px;
}

.learn-workbench-dock__meter {
    display: block;
    height: 4px;
    overflow: hidden;
    margin-top: 8px;
    border-radius: 999px;
    background: rgba(111, 124, 141, 0.18);
}

.learn-workbench-dock__meter::before {
    content: "";
    display: block;
    width: var(--mission-progress, 0%);
    height: 100%;
    border-radius: inherit;
    background: linear-gradient(90deg, var(--learn-blue), var(--learn-success));
    transition: width 260ms cubic-bezier(.2,.8,.2,1);
}

.learn-workbench-dock__flow {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 7px;
}

.learn-workbench-loop-chip {
    display: grid;
    grid-template-columns: 20px minmax(0, 1fr);
    gap: 6px;
    align-items: center;
    min-width: 0;
    min-height: 40px;
    border: 1px solid var(--learn-line);
    border-radius: var(--learn-radius);
    background: var(--learn-surface-soft);
    color: var(--learn-ink);
    padding: 7px;
    text-align: left;
    cursor: pointer;
    transition: transform 160ms ease, border-color 160ms ease, background 160ms ease;
}

.learn-workbench-loop-chip:hover,
.learn-workbench-purpose:hover,
.learn-workbench-filter:hover,
.learn-workbench-star:hover,
.learn-workbench-history-row:hover {
    transform: translateY(-1px);
    border-color: color-mix(in srgb, var(--learn-blue) 36%, var(--learn-line));
}

.learn-workbench-loop-chip.is-strong {
    background: color-mix(in srgb, var(--learn-blue) 7%, var(--learn-surface));
}

.learn-workbench-loop-chip span {
    display: grid;
    place-items: center;
    width: 20px;
    height: 20px;
    border: 1px solid var(--learn-line);
    border-radius: 50%;
    color: var(--learn-muted);
    font-size: 10px;
    font-weight: 880;
}

.learn-workbench-loop-chip strong {
    overflow: hidden;
    font-size: 12px;
    font-weight: 850;
    line-height: 1.2;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.learn-workbench-dock__actions,
.learn-workbench-card-actions,
.learn-workbench-current-actions,
.learn-workbench-item__actions {
    display: flex;
    flex-wrap: wrap;
    justify-content: flex-end;
    gap: 7px;
}

.learn-workbench-modal {
    position: fixed;
    inset: 0;
    z-index: 9997;
    padding: 20px;
}

.learn-workbench-modal__backdrop {
    position: absolute;
    inset: 0;
    background: rgba(9, 15, 24, 0.52);
    backdrop-filter: blur(10px);
}

.learn-workbench-panel {
    position: relative;
    width: min(1240px, calc(100vw - 32px));
    max-height: calc(100vh - 40px);
    margin: 0 auto;
    overflow: auto;
    border: 1px solid var(--learn-line-strong);
    border-radius: var(--learn-radius);
    background: var(--learn-surface);
    box-shadow: 0 26px 80px rgba(15, 23, 42, 0.28);
    animation: learnModalIn 180ms ease both;
}

.learn-workbench-panel__head {
    position: sticky;
    top: 0;
    z-index: 2;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    border-bottom: 1px solid var(--learn-line);
    background: color-mix(in srgb, var(--learn-surface) 94%, transparent);
    padding: 14px 16px;
    backdrop-filter: blur(12px);
}

.learn-workbench-panel__head button {
    width: 34px;
    height: 34px;
    border: 1px solid var(--learn-line);
    border-radius: var(--learn-radius);
    background: var(--learn-surface-soft);
    color: var(--learn-ink);
    font-size: 20px;
    line-height: 1;
    cursor: pointer;
}

.learn-workbench-body {
    display: grid;
    gap: 12px;
    padding: 14px;
}

.learn-os {
    display: grid;
    gap: 12px;
}

.learn-os-command,
.learn-os-panel {
    border: 1px solid var(--learn-line);
    border-radius: var(--learn-radius);
    background: var(--learn-surface-soft);
}

.learn-os-command {
    display: grid;
    grid-template-columns: minmax(240px, 0.72fr) minmax(0, 1fr);
    gap: 12px;
    align-items: center;
    padding: 12px;
}

.learn-os-command__copy {
    min-width: 0;
}

.learn-os-command__copy span,
.learn-os-command__copy small,
.learn-transfer-selected span,
.learn-transfer-selected small,
.learn-os-panel__head span,
.learn-memory-item__main span,
.learn-memory-item__main small {
    display: block;
    color: var(--learn-muted);
    font-size: 11px;
    font-weight: 780;
    line-height: 1.35;
}

.learn-os-command__copy strong,
.learn-transfer-selected strong {
    display: block;
    overflow: hidden;
    margin-top: 2px;
    color: var(--learn-ink);
    font-size: 15px;
    font-weight: 880;
    line-height: 1.3;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.learn-os-purpose-tabs {
    display: flex;
    flex-wrap: wrap;
    justify-content: flex-end;
    gap: 7px;
}

.learn-os-purpose,
.learn-mission-row__state,
.learn-mission-row__body,
.learn-mission-dots button,
.learn-memory-item__main {
    border: 1px solid var(--learn-line);
    border-radius: var(--learn-radius);
    background: var(--learn-surface);
    color: var(--learn-ink-soft);
    cursor: pointer;
    transition: transform 160ms ease, border-color 160ms ease, background 160ms ease;
}

.learn-os-purpose {
    min-height: 32px;
    padding: 7px 10px;
    font-size: 12px;
    font-weight: 820;
}

.learn-os-purpose.is-active {
    border-color: color-mix(in srgb, var(--learn-blue) 44%, var(--learn-line));
    background: color-mix(in srgb, var(--learn-blue) 8%, var(--learn-surface));
    color: var(--learn-ink);
}

.learn-os-grid {
    display: grid;
    grid-template-columns: minmax(300px, 0.95fr) minmax(300px, 0.9fr) minmax(300px, 1fr);
    gap: 12px;
    align-items: start;
}

.learn-os-panel {
    min-width: 0;
    padding: 12px;
}

.learn-os-panel__head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    margin-bottom: 10px;
}

.learn-os-panel__head strong {
    color: var(--learn-ink);
    font-size: 15px;
    font-weight: 880;
}

.learn-mission-dots {
    display: flex;
    gap: 5px;
}

.learn-mission-dots button {
    width: 18px;
    height: 18px;
    border-radius: 50%;
    padding: 0;
}

.learn-mission-dots button.is-on,
.learn-outline__mission i.is-on {
    border-color: var(--learn-success);
    background: var(--learn-success);
}

.learn-mission-dots button.has-asset,
.learn-outline__mission i.has-asset {
    border-color: var(--learn-warning);
    background: color-mix(in srgb, var(--learn-warning) 24%, var(--learn-surface));
}

.learn-mission-stack,
.learn-workbench-list,
.learn-workbench-history__list {
    display: grid;
    gap: 8px;
}

.learn-mission-row {
    display: grid;
    grid-template-columns: 68px minmax(0, 1fr);
    gap: 8px;
    align-items: stretch;
    min-width: 0;
}

.learn-mission-row__state {
    min-height: 58px;
    padding: 6px;
    color: var(--learn-muted);
    font-size: 11px;
    font-weight: 850;
}

.learn-mission-row.is-confirmed .learn-mission-row__state {
    border-color: color-mix(in srgb, var(--learn-success) 44%, var(--learn-line));
    background: color-mix(in srgb, var(--learn-success) 10%, var(--learn-surface));
    color: var(--learn-success);
}

.learn-mission-row.has-asset:not(.is-confirmed) .learn-mission-row__state {
    border-color: color-mix(in srgb, var(--learn-warning) 38%, var(--learn-line));
    color: var(--learn-warning);
}

.learn-mission-row__body {
    min-width: 0;
    padding: 8px 10px;
    text-align: left;
}

.learn-mission-row__body span {
    color: var(--learn-blue);
    font-size: 11px;
    font-weight: 850;
}

.learn-mission-row__body strong {
    display: block;
    overflow: hidden;
    margin-top: 2px;
    color: var(--learn-ink);
    font-size: 13px;
    font-weight: 850;
    line-height: 1.25;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.learn-mission-row__body small {
    display: block;
    overflow: hidden;
    margin-top: 4px;
    color: var(--learn-muted);
    font-size: 11px;
    line-height: 1.35;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.learn-mission-row.is-active .learn-mission-row__body {
    border-color: color-mix(in srgb, var(--learn-blue) 42%, var(--learn-line));
    background: color-mix(in srgb, var(--learn-blue) 7%, var(--learn-surface));
}

.learn-mission-row__actions {
    grid-column: 1 / -1;
    display: flex;
    flex-wrap: wrap;
    justify-content: flex-start;
    gap: 6px;
}

.learn-transfer-brief {
    margin: 0 0 10px;
    color: var(--learn-ink-soft);
    font-size: 13px;
    font-weight: 650;
    line-height: 1.5;
}

.learn-transfer-selected,
.learn-transfer-preview {
    border: 1px solid var(--learn-line);
    border-radius: var(--learn-radius);
    background: var(--learn-surface);
}

.learn-transfer-selected {
    padding: 10px;
}

.learn-transfer-preview {
    max-height: 220px;
    overflow: auto;
    margin: 10px 0 0;
    color: var(--learn-ink-soft);
    padding: 10px;
    font-size: 12px;
    line-height: 1.55;
    white-space: pre-wrap;
}

.learn-transfer-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 10px;
}

.learn-linked-targets {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 7px;
    margin-bottom: 10px;
}

.learn-linked-target {
    min-width: 0;
    min-height: 42px;
    border: 1px solid var(--learn-line);
    border-radius: var(--learn-radius);
    background: var(--learn-surface);
    color: var(--learn-ink);
    padding: 8px;
    font-size: 12px;
    font-weight: 830;
    line-height: 1.2;
    text-align: left;
    text-decoration: none;
    cursor: pointer;
    transition: transform 160ms ease, border-color 160ms ease, background 160ms ease;
}

.learn-linked-target span {
    display: block;
    margin-top: 3px;
    color: var(--learn-muted);
    font-size: 10px;
    font-weight: 820;
}

.learn-linked-target:hover {
    transform: translateY(-1px);
    border-color: color-mix(in srgb, var(--learn-blue) 36%, var(--learn-line));
}

.learn-memory-item {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 8px;
    align-items: center;
    border: 1px solid var(--learn-line);
    border-radius: var(--learn-radius);
    background: var(--learn-surface);
    padding: 8px;
}

.learn-memory-item.is-selected {
    border-color: color-mix(in srgb, var(--learn-blue) 44%, var(--learn-line));
    background: color-mix(in srgb, var(--learn-blue) 6%, var(--learn-surface));
}

.learn-memory-item__main {
    min-width: 0;
    border: 0;
    background: transparent;
    padding: 0;
    text-align: left;
}

.learn-memory-item__main span {
    color: var(--learn-blue);
}

.learn-memory-item__main strong {
    display: block;
    overflow: hidden;
    margin-top: 2px;
    color: var(--learn-ink);
    font-size: 13px;
    font-weight: 850;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.learn-memory-item .learn-workbench-rating {
    grid-column: 1 / 2;
    margin-top: 0;
}

.learn-memory-item .learn-workbench-item__actions {
    grid-column: 1 / -1;
    justify-content: flex-start;
}

.learn-workbench-loop-chip.is-confirmed {
    border-color: color-mix(in srgb, var(--learn-success) 44%, var(--learn-line));
    background: color-mix(in srgb, var(--learn-success) 9%, var(--learn-surface));
}

.learn-workbench-loop-chip.has-asset:not(.is-confirmed) {
    border-color: color-mix(in srgb, var(--learn-warning) 38%, var(--learn-line));
}

.learn-workbench-loop-chip.is-confirmed span {
    border-color: var(--learn-success);
    background: var(--learn-success);
    color: #fff !important;
}

.learn-workbench-summary,
.learn-workbench-current,
.learn-workbench-assets,
.learn-workbench-history {
    border: 1px solid var(--learn-line);
    border-radius: var(--learn-radius);
    background: var(--learn-surface-soft);
}

.learn-workbench-summary {
    display: grid;
    grid-template-columns: minmax(210px, 0.75fr) minmax(0, 1fr);
    gap: 12px;
    align-items: center;
    padding: 12px;
}

.learn-workbench-purpose-tabs,
.learn-workbench-filters {
    display: flex;
    flex-wrap: wrap;
    gap: 7px;
}

.learn-workbench-purpose,
.learn-workbench-filter,
.learn-workbench-star,
.learn-workbench-history-row {
    border: 1px solid var(--learn-line);
    border-radius: var(--learn-radius);
    background: var(--learn-surface);
    color: var(--learn-ink-soft);
    cursor: pointer;
    transition: transform 160ms ease, border-color 160ms ease, background 160ms ease;
}

.learn-workbench-purpose,
.learn-workbench-filter,
.learn-workbench-star {
    min-height: 32px;
    padding: 7px 10px;
    font-size: 12px;
    font-weight: 820;
}

.learn-workbench-purpose.is-active,
.learn-workbench-filter.is-active,
.learn-workbench-star.is-active {
    border-color: color-mix(in srgb, var(--learn-blue) 45%, var(--learn-line));
    background: color-mix(in srgb, var(--learn-blue) 8%, var(--learn-surface));
    color: var(--learn-ink);
}

.learn-workbench-grid {
    display: grid;
    grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
    gap: 12px;
    align-items: start;
}

.learn-workbench-current,
.learn-workbench-assets,
.learn-workbench-history {
    padding: 12px;
}

.learn-workbench-section-head {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 10px;
    margin-bottom: 10px;
}

.learn-workbench-section-head strong {
    color: var(--learn-ink);
    font-size: 15px;
    font-weight: 880;
}

.learn-workbench-loop-grid,
.learn-workbench-list,
.learn-workbench-history__list {
    display: grid;
    gap: 9px;
}

.learn-workbench-loop-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.learn-workbench-loop-card,
.learn-workbench-item {
    min-width: 0;
    border: 1px solid var(--learn-line);
    border-radius: var(--learn-radius);
    background: var(--learn-surface);
    padding: 10px;
}

.learn-workbench-loop-card.is-strong {
    border-color: color-mix(in srgb, var(--learn-blue) 30%, var(--learn-line));
}

.learn-workbench-loop-card span {
    color: var(--learn-blue);
    font-size: 11px;
    font-weight: 850;
}

.learn-workbench-loop-card strong {
    display: block;
    margin-top: 4px;
    color: var(--learn-ink);
    font-size: 13px;
    font-weight: 850;
    line-height: 1.3;
}

.learn-workbench-loop-card p,
.learn-workbench-item__text {
    display: -webkit-box;
    overflow: hidden;
    margin: 7px 0 0;
    color: var(--learn-ink-soft);
    font-size: 12px;
    line-height: 1.5;
    -webkit-box-orient: vertical;
}

.learn-workbench-loop-card p {
    min-height: 54px;
    -webkit-line-clamp: 3;
}

.learn-workbench-item__text {
    -webkit-line-clamp: 4;
}

.learn-workbench-card-actions,
.learn-workbench-current-actions,
.learn-workbench-item__actions {
    margin-top: 10px;
}

.learn-mini-btn--primary {
    background: var(--learn-primary-bg);
    color: var(--learn-primary-ink) !important;
}

.learn-workbench-item__head {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 10px;
    align-items: start;
}

.learn-workbench-item__meta {
    min-width: 0;
}

.learn-workbench-item__meta span {
    display: inline-flex;
    min-height: 22px;
    align-items: center;
    border: 1px solid var(--learn-line);
    border-radius: var(--learn-radius);
    background: var(--learn-surface-soft);
    color: var(--learn-muted);
    padding: 3px 7px;
    font-size: 10px;
    font-weight: 850;
}

.learn-workbench-item__meta strong {
    display: block;
    overflow: hidden;
    margin-top: 5px;
    color: var(--learn-ink);
    font-size: 13px;
    font-weight: 880;
    line-height: 1.3;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.learn-workbench-star {
    white-space: nowrap;
}

.learn-workbench-rating {
    display: flex;
    gap: 3px;
    margin-top: 9px;
}

.learn-workbench-rating button {
    width: 24px;
    height: 24px;
    border: 0;
    border-radius: 50%;
    background: transparent;
    color: var(--learn-subtle);
    padding: 0;
    font-size: 15px;
    line-height: 1;
    cursor: pointer;
}

.learn-workbench-rating button.is-active {
    color: var(--learn-warning);
}

.learn-workbench-item__linked {
    margin-top: 9px;
    border-top: 1px solid var(--learn-line);
    color: var(--learn-success);
    padding-top: 8px;
    font-size: 11px;
    font-weight: 760;
    word-break: break-all;
}

.learn-workbench-history-row {
    display: grid;
    grid-template-columns: 68px minmax(0, 1fr) 70px;
    gap: 8px;
    align-items: center;
    min-height: 38px;
    padding: 7px 9px;
    text-align: left;
}

.learn-workbench-history-row span {
    color: var(--learn-blue);
    font-size: 11px;
    font-weight: 850;
}

.learn-workbench-history-row strong {
    overflow: hidden;
    color: var(--learn-ink);
    font-size: 12px;
    font-weight: 820;
    text-overflow: ellipsis;
    white-space: nowrap;
}

@keyframes learnPanelIn {
    from { opacity: 0; transform: translateY(4px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes learnModalIn {
    from { opacity: 0; transform: translateY(10px) scale(0.99); }
    to { opacity: 1; transform: translateY(0) scale(1); }
}

.learn-learning-console {
    display: grid;
    gap: 10px;
    margin-top: 16px;
    padding: 12px;
}

.learn-learning-console[hidden] {
    display: none;
}

.learn-learning-console__head,
.learn-learning-console__strip {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
}

.learn-learning-console__title span {
    display: block;
    color: var(--learn-muted);
    font-size: 11px;
    font-weight: 800;
}

.learn-learning-console__title strong {
    display: block;
    margin-top: 2px;
    color: var(--learn-ink);
    font-size: 14px;
    font-weight: 880;
    line-height: 1.3;
}

.learn-learning-console__actions,
.learn-learning-console__marks {
    display: flex;
    flex-wrap: wrap;
    justify-content: flex-end;
    gap: 8px;
}

.learn-learning-console__flow {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 8px;
}

.learn-thread-action,
.learn-continuity-chip,
.learn-mark-chip {
    border: 1px solid var(--learn-line);
    border-radius: var(--learn-radius);
    background: var(--learn-surface-soft);
    color: var(--learn-ink);
    cursor: pointer;
    transition: transform 160ms ease, border-color 160ms ease, background 160ms ease;
}

.learn-thread-action {
    display: grid;
    grid-template-columns: 32px minmax(0, 1fr);
    gap: 8px;
    align-items: center;
    min-height: 72px;
    padding: 9px;
    text-align: left;
}

.learn-thread-action:hover,
.learn-continuity-chip:not(:disabled):hover,
.learn-mark-chip:hover,
.learn-mini-btn:hover {
    transform: translateY(-1px);
    border-color: color-mix(in srgb, var(--learn-blue) 36%, var(--learn-line));
}

.learn-thread-action.is-strong {
    background: color-mix(in srgb, var(--learn-blue) 6%, var(--learn-surface));
}

.learn-thread-action__num {
    display: grid;
    place-items: center;
    width: 30px;
    height: 30px;
    border: 1px solid var(--learn-line);
    border-radius: 999px;
    background: var(--learn-surface);
    color: var(--learn-muted);
    font-size: 11px;
    font-weight: 880;
}

.learn-thread-action.is-strong .learn-thread-action__num {
    border-color: color-mix(in srgb, var(--learn-blue) 48%, var(--learn-line));
    background: var(--learn-primary-bg);
    color: var(--learn-primary-ink) !important;
}

.learn-thread-action__body {
    min-width: 0;
}

.learn-thread-action__body strong,
.learn-continuity-chip strong {
    display: block;
    overflow: hidden;
    color: var(--learn-ink);
    font-size: 13px;
    font-weight: 860;
    line-height: 1.28;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.learn-thread-action__body small {
    display: -webkit-box;
    overflow: hidden;
    margin-top: 4px;
    color: var(--learn-muted);
    font-size: 11px;
    line-height: 1.38;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}

.learn-continuity-chip {
    min-width: 0;
    flex: 1 1 0;
    min-height: 42px;
    padding: 7px 9px;
    text-align: left;
}

.learn-continuity-chip:disabled {
    cursor: default;
    opacity: 0.72;
}

.learn-continuity-chip.is-current {
    border-color: color-mix(in srgb, var(--learn-success) 36%, var(--learn-line));
    background: color-mix(in srgb, var(--learn-success) 7%, var(--learn-surface));
}

.learn-continuity-chip span {
    display: block;
    color: var(--learn-muted);
    font-size: 10px;
    font-weight: 840;
    line-height: 1.2;
}

.learn-mark-chip {
    max-width: 160px;
    min-height: 32px;
    overflow: hidden;
    color: var(--learn-ink-soft);
    padding: 6px 9px;
    font-size: 11px;
    font-weight: 820;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.learn-micro-card {
    border: 1px solid var(--learn-line);
    border-radius: var(--learn-radius);
    background: var(--learn-surface-soft);
    padding: 12px;
}

.learn-micro-card__value {
    margin-top: 6px;
    color: var(--learn-ink);
    font-size: 17px;
    font-weight: 820;
}

.learn-stage__content {
    margin-top: 18px;
}

.learn-stage__content.is-entering {
    animation: learnStageIn 240ms ease-out both;
}

@keyframes learnStageIn {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}

.learn-stage__content .md-auto-format,
.learn-stage__content .learn-rich {
    max-width: 880px;
    color: var(--learn-ink);
    font-size: 16px;
    line-height: 1.86;
}

.learn-stage__content .md-auto-format > * + *,
.learn-stage__content .learn-rich > * + * {
    margin-top: 1em;
}

.learn-stage__content .md-auto-format h1,
.learn-stage__content .md-auto-format h2,
.learn-stage__content .md-auto-format h3,
.learn-stage__content .learn-rich h1,
.learn-stage__content .learn-rich h2,
.learn-stage__content .learn-rich h3 {
    color: var(--learn-ink);
    line-height: 1.25;
    letter-spacing: 0;
}

.learn-stage__content .md-auto-format a,
.learn-stage__content .learn-rich a {
    color: var(--learn-blue);
    font-weight: 760;
}

.learn-stage__content .md-auto-format blockquote,
.learn-stage__content .learn-rich blockquote {
    margin-left: 0;
    border-left: 4px solid var(--learn-blue);
    border-radius: 0 var(--learn-radius) var(--learn-radius) 0;
    background: color-mix(in srgb, var(--learn-blue) 7%, var(--learn-surface));
    padding: 12px 16px;
}

.learn-stage__content .md-auto-format pre,
.learn-stage__content .learn-rich pre,
.learn-ai-prompt,
.learn-quest-spell {
    overflow: auto;
    border: 1px solid var(--learn-line);
    border-radius: var(--learn-radius);
    background: var(--learn-surface-muted);
    color: var(--learn-ink);
    padding: 14px;
    box-shadow: none;
}

.learn-stage__content .md-auto-format code:not(pre code),
.learn-stage__content .learn-rich code:not(pre code) {
    border-radius: 6px;
    background: var(--learn-surface-muted);
    color: var(--learn-blue);
    padding: 2px 6px;
}

.learn-stage__content .md-auto-format iframe,
.learn-stage__content .learn-rich iframe,
.learn-demo-frame {
    width: 100%;
    min-height: 420px;
    border: 1px solid var(--learn-line);
    border-radius: var(--learn-radius);
    background: #fff;
}

.learn-stage__content .md-auto-format img,
.learn-stage__content .learn-rich img,
.learn-stage__content .md-auto-format video,
.learn-stage__content .learn-rich video {
    max-width: 100%;
    border-radius: var(--learn-radius);
}

.learn-stage__content .md-auto-format table,
.learn-stage__content .learn-rich table {
    width: 100%;
    border-collapse: collapse;
}

.learn-stage__content .md-auto-format th,
.learn-stage__content .learn-rich th,
.learn-stage__content .md-auto-format td,
.learn-stage__content .learn-rich td {
    border: 1px solid var(--learn-line);
    padding: 10px 12px;
}

.learn-stage__tips {
    display: grid;
    gap: 10px;
    margin-top: 18px;
}

.learn-tip {
    overflow: hidden;
    border: 1px solid var(--learn-line);
    border-radius: var(--learn-radius);
    background: var(--learn-surface-soft);
}

.learn-tip summary {
    padding: 12px 14px;
    cursor: pointer;
    color: var(--learn-ink);
    font-weight: 820;
}

.learn-tip__body {
    padding: 0 14px 14px;
}

.learn-stage__footer {
    justify-content: space-between;
    margin-top: 20px;
    padding-top: 16px;
    border-top: 1px solid var(--learn-line);
}

.learn-stage__feedback {
    flex: 1;
    min-width: 180px;
    color: var(--learn-muted);
    font-size: 13px;
    font-weight: 760;
    text-align: center;
}

.learn-flow-compass {
    overflow: hidden;
    border: 1px solid color-mix(in srgb, var(--learn-blue) 24%, var(--learn-line));
    border-radius: var(--learn-radius);
    background: linear-gradient(180deg, color-mix(in srgb, var(--learn-blue) 5%, var(--learn-surface)), var(--learn-surface));
    margin-bottom: 18px;
}

.learn-flow-compass__head {
    display: flex;
    justify-content: space-between;
    gap: 14px;
    align-items: center;
    border-bottom: 1px solid var(--learn-line);
    padding: 12px;
}

.learn-flow-compass__head strong {
    display: block;
    margin-top: 4px;
    color: var(--learn-ink);
    font-size: 14px;
    line-height: 1.35;
}

.learn-flow-compass__steps {
    position: relative;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.learn-flow-compass__steps::before {
    display: none;
}

.learn-flow-step {
    position: relative;
    min-width: 0;
    padding: 12px;
}

.learn-flow-step + .learn-flow-step {
    border-left: 0;
}

.learn-flow-step:nth-child(even) {
    border-left: 1px solid var(--learn-line);
}

.learn-flow-step:nth-child(n + 3) {
    border-top: 1px solid var(--learn-line);
}

.learn-flow-step__index {
    position: relative;
    z-index: 1;
    display: grid;
    place-items: center;
    width: 32px;
    height: 32px;
    border: 1px solid var(--learn-line);
    border-radius: 999px;
    background: var(--learn-surface);
    color: var(--learn-muted);
    font-size: 12px;
    font-weight: 850;
}

.learn-flow-step.is-strong .learn-flow-step__index {
    border-color: color-mix(in srgb, var(--learn-blue) 45%, var(--learn-line));
    background: var(--learn-primary-bg);
    color: var(--learn-primary-ink) !important;
}

.learn-flow-step__body {
    margin-top: 10px;
}

.learn-flow-step__body small {
    color: var(--learn-blue);
    font-size: 11px;
    font-weight: 850;
}

.learn-flow-step__body strong {
    display: block;
    margin-top: 3px;
    color: var(--learn-ink);
    font-size: 13px;
    line-height: 1.35;
}

.learn-flow-step__body p {
    margin: 7px 0 0;
    color: var(--learn-muted);
    font-size: 12px;
    line-height: 1.55;
    display: -webkit-box;
    overflow: hidden;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}

.learn-practice-stack,
.learn-fill-list,
.learn-choice-list,
.learn-sequence-list,
.learn-matching-list {
    display: grid;
    gap: 11px;
    margin-top: 16px;
}

.learn-practice-card,
.learn-question,
.learn-fill-row,
.learn-choice-card,
.learn-sequence-item,
.learn-matching-row,
.learn-check-card,
.learn-matching-chip,
.learn-matching-slot,
.learn-stage-mini-card,
.learn-annotation-card,
.learn-expected-output,
.learn-answer-guide {
    border: 1px solid var(--learn-line);
    border-radius: var(--learn-radius);
    background: var(--learn-surface-soft);
}

.learn-practice-card,
.learn-question,
.learn-answer-guide {
    padding: 16px;
}

.learn-practice-card__title,
.learn-question__title,
.learn-case-card strong,
.learn-auto-tip__head strong,
.learn-guide-hub__head strong,
.learn-guide-suggestion-card strong {
    color: var(--learn-ink);
    font-size: 18px;
    font-weight: 850;
    line-height: 1.28;
}

.learn-practice-card__summary,
.learn-question__lead,
.learn-question__note,
.learn-practice-list__body,
.learn-demo-caption,
.learn-ai-practice-context,
.learn-expected-output,
.learn-case-card p,
.learn-tip-card__body,
.learn-auto-tip-card__body,
.learn-answer-step__answer,
.learn-answer-step__explain,
.learn-guide-suggestion-card p {
    color: var(--learn-muted);
    font-size: 13px;
    line-height: 1.65;
}

.learn-practice-list {
    display: grid;
    gap: 10px;
    margin: 12px 0 0;
    padding: 0;
    list-style: none;
}

.learn-practice-list li {
    display: grid;
    grid-template-columns: 16px minmax(0, 1fr);
    gap: 10px;
    align-items: start;
}

.learn-practice-list__dot {
    width: 8px;
    height: 8px;
    margin-top: 9px;
    border-radius: 50%;
    background: var(--learn-blue);
}

.learn-stage-card-grid,
.learn-annotation-list {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 11px;
    margin-top: 14px;
}

.learn-stage-mini-card,
.learn-annotation-card,
.learn-expected-output {
    padding: 13px;
}

.learn-stage-mini-card__index,
.learn-annotation-card__target,
.learn-tip-card__category,
.learn-case-card__stage,
.learn-auto-tip-card__category {
    display: inline-flex;
    min-height: 26px;
    align-items: center;
    border: 1px solid var(--learn-line);
    border-radius: 999px;
    background: var(--learn-surface);
    color: var(--learn-muted);
    padding: 5px 8px;
    font-size: 11px;
    font-weight: 760;
}

.learn-stage-mini-card strong {
    display: block;
    margin-top: 10px;
    color: var(--learn-ink);
    font-size: 14px;
}

.learn-stage-mini-card p,
.learn-annotation-card p {
    margin: 8px 0 0;
    color: var(--learn-muted);
    font-size: 12px;
    line-height: 1.62;
}

.learn-demo-frame-wrap {
    position: relative;
    margin-top: 14px;
    overflow: hidden;
    border: 1px solid var(--learn-line);
    border-radius: var(--learn-radius);
    background: var(--learn-surface-muted);
}

.learn-demo-frame-wrap .learn-demo-frame {
    display: block;
    margin: 0;
    border: 0;
    border-radius: 0;
}

.learn-demo-cover {
    position: absolute;
    inset: 0;
    display: grid;
    place-items: center;
    gap: 10px;
    align-content: center;
    background: color-mix(in srgb, var(--learn-surface) 92%, transparent);
    backdrop-filter: blur(8px);
}

.learn-demo-frame-wrap.is-playing .learn-demo-cover {
    display: none;
}

.learn-demo-cover__play {
    min-width: 96px;
    min-height: 44px;
    padding: 0 16px;
    border: 1px solid var(--learn-line);
    border-radius: var(--learn-radius);
    background: var(--learn-primary-bg);
    color: var(--learn-primary-ink) !important;
    cursor: pointer;
    font-weight: 850;
}

.learn-demo-cover__link {
    color: var(--learn-blue);
    font-size: 13px;
    font-weight: 760;
}

.learn-ai-prompt {
    white-space: pre-wrap;
    margin: 12px 0 0;
    line-height: 1.65;
}

.learn-quest-hero {
    position: relative;
    overflow: hidden;
    display: grid;
    gap: 14px;
    border: 1px solid var(--learn-line);
    border-radius: var(--learn-radius);
    background: var(--learn-surface-soft);
    padding: 18px;
    animation: learnStageIn 260ms ease-out both;
}

.learn-quest-hero__spark {
    display: none;
}

.learn-quest-hero h3 {
    margin: 6px 0 8px;
    color: var(--learn-ink);
    font-size: clamp(24px, 3.5vw, 38px);
    line-height: 1.16;
    letter-spacing: 0;
}

.learn-quest-hero p {
    max-width: 760px;
    margin: 0;
    color: var(--learn-ink-soft);
    font-size: 15px;
    line-height: 1.68;
}

.learn-quest-goal {
    display: inline-grid;
    gap: 4px;
    margin-top: 12px;
    border: 1px solid var(--learn-line);
    border-radius: var(--learn-radius);
    background: var(--learn-surface);
    padding: 11px 13px;
}

.learn-quest-goal strong,
.learn-quest-spell__title {
    color: var(--learn-muted);
    font-size: 11px;
    font-weight: 820;
}

.learn-quest-spell__prompt {
    margin: 0;
    white-space: pre-wrap;
    color: var(--learn-ink);
    font-size: 14px;
    line-height: 1.65;
}

.learn-question__head {
    padding-bottom: 12px;
    border-bottom: 1px solid var(--learn-line);
}

.learn-question__status {
    flex: 0 0 auto;
    min-height: 30px;
    border: 1px solid var(--learn-line);
    border-radius: var(--learn-radius);
    background: var(--learn-surface);
    color: var(--learn-muted);
    padding: 7px 10px;
    font-size: 12px;
    font-weight: 760;
}

.learn-question__status.is-good {
    border-color: color-mix(in srgb, var(--learn-success) 45%, var(--learn-line));
    background: color-mix(in srgb, var(--learn-success) 9%, var(--learn-surface));
    color: var(--learn-success);
}

.learn-question__status.is-bad {
    border-color: color-mix(in srgb, var(--learn-danger) 45%, var(--learn-line));
    background: color-mix(in srgb, var(--learn-danger) 9%, var(--learn-surface));
    color: var(--learn-danger);
}

.learn-fill-row,
.learn-choice-card,
.learn-sequence-item,
.learn-matching-row,
.learn-check-card,
.learn-matching-chip,
.learn-matching-slot {
    padding: 13px;
    color: var(--learn-ink);
    transition: transform 160ms ease, border-color 160ms ease, background 160ms ease;
}

.learn-fill-row.is-filled,
.learn-choice-card.is-selected,
.learn-sequence-item.is-selected,
.learn-matching-row.is-filled,
.learn-check-card.is-selected,
.learn-matching-chip.is-selected {
    border-color: color-mix(in srgb, var(--learn-blue) 45%, var(--learn-line));
    background: color-mix(in srgb, var(--learn-blue) 8%, var(--learn-surface));
}

.learn-fill-row.is-right,
.learn-choice-card.is-right,
.learn-matching-row.is-right,
.learn-check-card.is-right {
    border-color: color-mix(in srgb, var(--learn-success) 45%, var(--learn-line));
    background: color-mix(in srgb, var(--learn-success) 9%, var(--learn-surface));
}

.learn-fill-row.is-wrong,
.learn-choice-card.is-wrong,
.learn-matching-row.is-wrong,
.learn-check-card.is-wrong {
    border-color: color-mix(in srgb, var(--learn-danger) 45%, var(--learn-line));
    background: color-mix(in srgb, var(--learn-danger) 9%, var(--learn-surface));
}

.learn-fill-row__label,
.learn-sequence-item__actions {
    display: flex;
    align-items: center;
    gap: 8px;
}

.learn-fill-input,
.learn-matching-select,
.learn-note {
    width: 100%;
    border: 1px solid var(--learn-line);
    border-radius: var(--learn-radius);
    background: var(--learn-surface);
    color: var(--learn-ink);
}

.learn-fill-input,
.learn-matching-select {
    min-height: 42px;
    margin-top: 8px;
    padding: 10px 12px;
}

.learn-choice-card {
    display: flex;
    gap: 12px;
    align-items: flex-start;
    cursor: pointer;
}

.learn-choice-card__body,
.learn-sequence-item__content,
.learn-matching-row__left {
    min-width: 0;
}

.learn-choice-card__tag {
    display: inline-flex;
    min-height: 24px;
    align-items: center;
    margin-top: 8px;
    border-radius: 999px;
    background: var(--learn-surface);
    color: var(--learn-muted);
    padding: 4px 8px;
    font-size: 11px;
    font-weight: 760;
}

.learn-choice-card__why {
    margin: 8px 0 0;
    color: var(--learn-muted);
    font-size: 12px;
    line-height: 1.55;
}

.learn-choice-card input {
    margin-top: 6px;
    accent-color: var(--learn-blue);
}

.learn-sequence-item {
    display: flex;
    gap: 12px;
    align-items: center;
    cursor: pointer;
}

.learn-matching-board {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(180px, 0.38fr);
    gap: 14px;
}

.learn-matching-pool {
    display: grid;
    align-content: start;
    gap: 10px;
    margin-top: 16px;
}

.learn-matching-row {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 220px;
    gap: 12px;
    align-items: center;
}

.learn-matching-chip,
.learn-matching-slot,
.learn-check-card {
    cursor: pointer;
    font-weight: 760;
    text-align: left;
}

.learn-matching-chip.is-used {
    opacity: 0.55;
}

.learn-matching-slot {
    min-height: 44px;
    width: 100%;
}

.learn-matching-row__hint {
    grid-column: 1 / -1;
    margin: 0;
    color: var(--learn-muted);
    font-size: 12px;
    line-height: 1.5;
}

.learn-check-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
    margin-top: 16px;
}

.is-flashing,
.is-reveal-focus {
    animation: learnQuestionFlash 520ms ease-out both;
}

@keyframes learnQuestionFlash {
    0%, 100% { box-shadow: none; }
    35% { box-shadow: 0 0 0 5px rgba(37, 99, 235, 0.16); }
}

.learn-answer-guide {
    margin-top: 16px;
}

.learn-answer-guide__copy span {
    display: block;
    margin-top: 4px;
    color: var(--learn-muted);
    font-size: 12px;
}

.learn-answer-guide__timeline {
    display: grid;
    gap: 9px;
    margin-top: 12px;
}

.learn-answer-step {
    display: grid;
    grid-template-columns: 32px minmax(0, 1fr);
    gap: 10px;
    border: 1px solid var(--learn-line);
    border-radius: var(--learn-radius);
    background: var(--learn-surface);
    padding: 10px;
}

.learn-answer-step.is-done {
    border-color: color-mix(in srgb, var(--learn-success) 35%, var(--learn-line));
}

.learn-answer-step__body strong {
    color: var(--learn-ink);
}

.learn-answer-step__answer,
.learn-answer-step__explain {
    margin: 6px 0 0;
}

.learn-lab-card--note {
    position: relative;
}

.learn-note-toolbar {
    margin-top: 12px;
}

.learn-note-toolbar__hint {
    flex: 1;
    min-width: 190px;
    color: var(--learn-muted);
    font-size: 12px;
    line-height: 1.55;
}

.learn-note {
    min-height: 220px;
    margin-top: 12px;
    padding: 13px;
    resize: vertical;
    font-size: 14px;
    line-height: 1.72;
}

.learn-capture__lead {
    margin-top: 8px;
    color: var(--learn-muted);
    font-size: 12px;
    line-height: 1.58;
}

.learn-capture-item,
.learn-tip-card,
.learn-case-card,
.learn-auto-tip-card,
.learn-guide-suggestion-card,
.learn-empty {
    padding: 12px;
}

.learn-capture-item__meta {
    color: var(--learn-muted);
    font-size: 11px;
    font-weight: 760;
}

.learn-capture-item__text {
    margin-top: 8px;
    color: var(--learn-ink);
    font-size: 13px;
    line-height: 1.65;
    white-space: pre-wrap;
}

.learn-ai-grid {
    align-items: stretch;
    margin-top: 12px;
}

.learn-ai-grid .learn-action-btn {
    flex: 1 1 120px;
}

.learn-tip-categories {
    display: flex;
    flex-wrap: wrap;
    gap: 7px;
    margin-top: 12px;
}

.learn-tip-category {
    min-height: 30px;
    border: 1px solid var(--learn-line);
    border-radius: var(--learn-radius);
    background: var(--learn-surface-soft);
    color: var(--learn-ink-soft);
    padding: 6px 9px;
    cursor: pointer;
    font-size: 12px;
    font-weight: 760;
}

.learn-tip-category.is-active {
    border-color: var(--learn-primary-bg);
    background: var(--learn-primary-bg);
    color: var(--learn-primary-ink) !important;
}

.learn-tip-card__head {
    display: flex;
    justify-content: space-between;
    gap: 10px;
}

.learn-tip-card strong {
    display: block;
    margin-top: 6px;
    color: var(--learn-ink);
    font-size: 13px;
}

.learn-case-card__head {
    align-items: center;
}

.learn-inline-link {
    min-height: 32px;
    padding: 7px 9px;
}

.learn-empty {
    border-style: dashed;
    color: var(--learn-muted);
    font-size: 13px;
    line-height: 1.55;
}

.learn-empty--compact {
    min-height: 42px;
    padding: 10px;
    font-size: 12px;
}

.learn-selection-popover {
    position: fixed;
    z-index: 9999;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    max-width: min(520px, calc(100vw - 24px));
    padding: 8px;
}

.learn-selection-popover[hidden] {
    display: none;
}

.learn-auto-tip {
    position: fixed;
    right: 18px;
    bottom: 18px;
    z-index: 9990;
}

.learn-auto-tip[hidden],
.learn-auto-tip__panel[hidden] {
    display: none;
}

.learn-auto-tip__button {
    box-shadow: var(--learn-shadow);
}

.learn-auto-tip.has-new .learn-auto-tip__button {
    border-color: color-mix(in srgb, var(--learn-blue) 45%, var(--learn-line));
}

.learn-auto-tip__icon {
    color: var(--learn-blue);
}

.learn-auto-tip__count {
    display: inline-flex;
    min-width: 20px;
    height: 20px;
    align-items: center;
    justify-content: center;
    border-radius: 999px;
    background: var(--learn-primary-bg);
    color: var(--learn-primary-ink) !important;
    font-size: 11px;
}

.learn-auto-tip__panel {
    position: absolute;
    right: 0;
    bottom: 48px;
    width: min(360px, calc(100vw - 32px));
    padding: 14px;
}

.learn-auto-tip__head button,
.learn-guide-hub__head button {
    width: 30px;
    height: 30px;
    border: 1px solid var(--learn-line);
    border-radius: var(--learn-radius);
    background: var(--learn-surface-soft);
    color: var(--learn-ink);
    cursor: pointer;
}

.learn-auto-tip__head span,
.learn-guide-hub__head span,
.learn-guide-suggestion-card span {
    color: var(--learn-muted);
    font-size: 11px;
    font-weight: 760;
}

.learn-guide-hub {
    position: fixed;
    right: 18px;
    top: 88px;
    z-index: 9988;
}

.learn-guide-hub__button {
    display: flex;
    align-items: center;
    gap: 8px;
    min-height: 42px;
    border: 1px solid var(--learn-line);
    border-radius: var(--learn-radius);
    background: var(--learn-surface);
    color: var(--learn-ink);
    box-shadow: var(--learn-shadow-soft);
    padding: 8px 12px;
    cursor: pointer;
}

.learn-guide-hub__button span {
    display: grid;
    place-items: center;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: var(--learn-primary-bg);
    color: var(--learn-primary-ink) !important;
    font-size: 12px;
}

.learn-guide-hub__button strong {
    font-size: 12px;
}

.learn-guide-hub__panel {
    position: absolute;
    right: 0;
    top: 52px;
    width: min(360px, calc(100vw - 32px));
    padding: 14px;
}

.learn-guide-hub__panel[hidden] {
    display: none;
}

.learn-guide-hub__current {
    display: grid;
    gap: 4px;
    margin-top: 12px;
    border: 1px solid var(--learn-line);
    border-radius: var(--learn-radius);
    background: var(--learn-surface-soft);
    padding: 12px;
}

.learn-guide-hub__current span,
.learn-guide-hub__current small {
    color: var(--learn-muted);
    font-size: 12px;
}

.learn-guide-hub__current strong {
    color: var(--learn-ink);
}

.learn-guide-hub__actions {
    margin-top: 12px;
}

.learn-guide-suggestion-card {
    margin-top: 12px;
}

.learn-celebration {
    pointer-events: none;
    position: fixed;
    inset: 0;
    overflow: hidden;
    z-index: 9998;
}

.learn-confetti {
    position: absolute;
    top: -20px;
    width: 9px;
    height: 16px;
    border-radius: 5px;
    opacity: 0.92;
    animation: learnConfetti 1100ms ease-out forwards;
}

@keyframes learnConfetti {
    0% { transform: translate3d(0, -30px, 0) rotate(0deg); opacity: 0; }
    10% { opacity: 1; }
    100% { transform: translate3d(var(--dx, 0px), 110vh, 0) rotate(var(--spin, 360deg)); opacity: 0; }
}

body.learn-page.learn-focus .learn-dashboard,
body.learn-page.learn-focus .learn-path-panel,
body.learn-page.learn-focus .learn-lab-panel,
body.learn-page.learn-focus .learn-guide-hub,
body.learn-page.learn-focus .learn-auto-tip {
    display: none;
}

body.learn-page.learn-focus .learn-workspace {
    grid-template-columns: minmax(0, 980px);
    justify-content: center;
}

body.learn-page.learn-focus .learn-stage {
    min-height: calc(100vh - 108px);
}

@media (max-width: 1240px) {
    .learn-dashboard {
        grid-template-columns: minmax(320px, 1fr) minmax(0, 1fr);
    }

    .learn-week-panel {
        grid-column: 1 / -1;
    }

    .learn-workspace {
        grid-template-columns: 270px minmax(0, 1fr);
    }

    body.learn-page.learn-kind-tutorial .learn-workspace {
        grid-template-columns: 250px minmax(0, 1fr);
    }

    .learn-os-grid {
        grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    }

    .learn-os-panel--memory {
        grid-column: 1 / -1;
    }

    .learn-lab-panel {
        position: static;
        grid-column: 1 / -1;
        max-height: none;
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 980px) {
    .learn-shell {
        padding: 10px;
    }

    .learn-appbar,
    .learn-dashboard,
    .learn-workspace {
        display: block;
    }

    body.learn-page.learn-kind-tutorial .learn-workspace {
        display: flex;
        flex-direction: column;
    }

    body.learn-page.learn-kind-tutorial .learn-stage {
        order: 1;
    }

    body.learn-page.learn-kind-tutorial .learn-path-panel {
        order: 2;
    }

    .learn-appbar__tools,
    .learn-dashboard > *,
    .learn-path-panel,
    .learn-stage,
    .learn-lab-panel {
        margin-top: 12px;
    }

    .learn-path-panel,
    .learn-lab-panel {
        position: static;
        max-height: none;
    }

    .learn-lab-panel {
        display: grid;
        grid-template-columns: 1fr;
    }

    .learn-outline {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .learn-workbench-dock,
    .learn-workbench-summary,
    .learn-workbench-grid,
    .learn-os-command,
    .learn-os-grid {
        grid-template-columns: 1fr;
    }

    .learn-workbench-dock__actions {
        justify-content: flex-start;
    }

    .learn-os-purpose-tabs {
        justify-content: flex-start;
    }
}

@media (max-width: 760px) {
    .learn-brand {
        display: block;
    }

    body.learn-page.learn-kind-tutorial .learn-dashboard {
        display: none;
    }

    .learn-brand__mark {
        margin-bottom: 10px;
    }

    .learn-dashboard__mission,
    .learn-stat-strip,
    .learn-stage__head,
    .learn-outline,
    .learn-matching-row,
    .learn-matching-board,
    .learn-question__head,
    .learn-stage-card-grid,
    .learn-annotation-list,
    .learn-check-grid {
        grid-template-columns: 1fr;
    }

    .learn-question__head,
    .learn-stage__head {
        display: grid;
    }

    .learn-flow-compass__head {
        display: grid;
    }

    .learn-flow-compass__steps {
        grid-template-columns: repeat(4, minmax(0, 1fr));
    }

    .learn-flow-compass__steps::before {
        display: none;
    }

    .learn-flow-step {
        padding: 10px 6px;
        text-align: center;
    }

    .learn-flow-step + .learn-flow-step {
        border-left: 1px solid var(--learn-line);
        border-top: 0;
    }

    .learn-flow-step:nth-child(n + 3) {
        border-top: 0;
    }

    .learn-flow-step__index {
        margin: 0 auto;
    }

    .learn-flow-step__body {
        margin-top: 7px;
    }

    .learn-flow-step__body strong,
    .learn-flow-step__body p {
        display: none;
    }

    .learn-stage {
        padding: 16px;
    }

    body.learn-page.learn-kind-tutorial .learn-stage {
        padding: 14px;
    }

    .learn-workbench-dock {
        gap: 8px;
        padding: 8px;
    }

    .learn-workbench-dock__main {
        display: grid;
        grid-template-columns: auto minmax(0, 1fr);
        gap: 6px;
        align-items: center;
    }

    .learn-workbench-dock__main span {
        margin: 0;
    }

    .learn-workbench-dock__main strong {
        margin: 0;
        font-size: 13px;
    }

    .learn-workbench-dock__main small {
        display: none;
    }

    .learn-workbench-dock__flow {
        display: flex;
        overflow-x: auto;
        padding-bottom: 3px;
        scroll-snap-type: x mandatory;
    }

    .learn-workbench-loop-chip {
        flex: 0 0 108px;
        min-height: 36px;
        padding: 6px;
        scroll-snap-align: start;
    }

    .learn-workbench-dock__actions {
        display: grid;
        grid-template-columns: repeat(3, minmax(0, 1fr));
        gap: 6px;
    }

    .learn-workbench-dock__actions .learn-action-btn {
        min-height: 32px;
        padding: 6px 4px;
        font-size: 11px;
        line-height: 1.2;
        white-space: normal;
    }

    .learn-workbench-modal {
        padding: 0;
    }

    .learn-workbench-panel {
        width: 100vw;
        max-height: 100vh;
        min-height: 100vh;
        border: 0;
        border-radius: 0;
    }

    .learn-workbench-body {
        padding: 10px;
    }

    .learn-os-command,
    .learn-os-panel {
        padding: 10px;
    }

    .learn-os-purpose-tabs {
        flex-wrap: wrap;
        overflow: visible;
        padding-bottom: 0;
    }

    .learn-workbench-filters {
        flex-wrap: nowrap;
        overflow-x: auto;
        padding-bottom: 3px;
    }

    .learn-os-purpose {
        flex: 1 1 calc(50% - 7px);
        justify-content: center;
    }

    .learn-mission-row {
        grid-template-columns: 62px minmax(0, 1fr);
    }

    .learn-mission-row__actions {
        grid-column: 1 / -1;
        display: flex;
        flex-wrap: wrap;
        justify-content: flex-start;
    }

    .learn-transfer-preview {
        max-height: 180px;
    }

    .learn-linked-targets {
        grid-template-columns: 1fr;
    }

    .learn-memory-item {
        grid-template-columns: minmax(0, 1fr);
    }

    .learn-memory-item .learn-workbench-item__actions {
        display: flex;
        overflow-x: auto;
        flex-wrap: nowrap;
        padding-bottom: 2px;
    }

    .learn-workbench-loop-grid {
        grid-template-columns: 1fr;
    }

    .learn-workbench-purpose,
    .learn-workbench-filter {
        flex: 0 0 auto;
    }

    .learn-workbench-current-actions,
    .learn-workbench-item__actions,
    .learn-workbench-card-actions {
        justify-content: flex-start;
    }

    .learn-workbench-history-row {
        grid-template-columns: 58px minmax(0, 1fr);
    }

    .learn-workbench-history-row small {
        display: none;
    }

    .learn-learning-console__head,
    .learn-learning-console__strip {
        display: grid;
        justify-content: stretch;
    }

    .learn-learning-console__actions {
        justify-content: flex-start;
    }

    .learn-learning-console__flow {
        display: flex;
        overflow-x: auto;
        padding-bottom: 4px;
        scroll-snap-type: x mandatory;
    }

    .learn-thread-action {
        flex: 0 0 min(280px, 82vw);
        scroll-snap-align: start;
    }

    .learn-continuity-chip {
        width: 100%;
    }

    .learn-learning-console__marks {
        justify-content: flex-start;
    }

    .learn-asset-item {
        grid-template-columns: minmax(0, 1fr);
    }

    .learn-stage__title {
        font-size: 30px;
    }

    .learn-stage__micro {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .learn-stage__footer {
        flex-direction: column;
        align-items: stretch;
    }

    .learn-stage__content .md-auto-format iframe,
    .learn-stage__content .learn-rich iframe,
    .learn-demo-frame {
        min-height: 320px;
    }

    .learn-auto-tip {
        left: 10px;
        right: 10px;
        bottom: 10px;
    }

    .learn-auto-tip__panel {
        left: 0;
        right: 0;
        width: auto;
    }

    .learn-guide-hub {
        top: auto;
        right: 12px;
        bottom: 12px;
    }

    .learn-guide-hub__button {
        width: 46px;
        min-height: 46px;
        justify-content: center;
        border-radius: 50%;
        padding: 0;
    }

    .learn-guide-hub__button strong {
        display: none;
    }

    .learn-guide-hub__button span {
        width: 28px;
        height: 28px;
    }

    .learn-guide-hub__panel {
        top: auto;
        right: 0;
        bottom: 56px;
        width: calc(100vw - 24px);
        max-height: min(70vh, 520px);
        overflow: auto;
    }
}

@media (prefers-reduced-motion: reduce) {
    .learn-stage__content.is-entering,
    .learn-quest-hero,
    .learn-confetti,
    .is-flashing,
    .is-reveal-focus {
        animation: none;
    }

    .learn-top-btn,
    .learn-action-btn,
    .learn-nav-btn,
    .learn-outline__item,
    .learn-choice-card,
    .learn-capture-item {
        transition: none;
    }
}