body.learning-page .vc-header {
    transition: transform 0.22s ease, box-shadow 0.22s ease;
    will-change: transform;
}

body.learning-page.learning-nav-hidden .vc-header {
    transform: translateY(-110%);
    pointer-events: none;
    box-shadow: none;
}

.learning-shell {
    max-width: 1380px;
    margin: 0 auto;
    padding: 28px 24px 48px;
}

.learning-layout {
    display: grid;
    grid-template-columns: 300px minmax(0, 1fr) 340px;
    gap: 24px;
    align-items: start;
    transition: grid-template-columns 0.22s ease;
}

.learning-sticky {
    position: sticky;
    top: 104px;
}

.learning-sidebar-toggle,
.learning-scroll-video-button {
    width: 100%;
    min-height: 2.5rem;
    border: 1px solid rgba(122, 31, 51, 0.14);
    border-radius: 14px;
    background: rgba(255, 255, 255, 0.92);
    color: var(--brand-primary);
    font-weight: 900;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: background-color 0.18s ease, color 0.18s ease, border-color 0.18s ease;
}

.learning-sidebar-toggle:hover,
.learning-sidebar-toggle:focus,
.learning-scroll-video-button:hover,
.learning-scroll-video-button:focus {
    background: var(--brand-primary);
    border-color: var(--brand-primary);
    color: #fff;
}

.learning-sidebar-toggle {
    margin-bottom: 12px;
    white-space: nowrap;
}

.learning-sidebar-toggle__icon,
.learning-scroll-video-button__icon {
    font-size: 1.05rem;
    line-height: 1;
}

.learning-scroll-video-button {
    position: fixed;
    right: 24px;
    bottom: 24px;
    z-index: 30;
    width: auto;
    padding: 0.65rem 0.95rem;
    box-shadow: 0 16px 34px rgba(24, 32, 45, 0.18);
}

.learning-mobile-lessons-button,
.learning-mobile-lessons-backdrop {
    display: none;
}

.learning-shell.is-left-minimal .learning-layout > aside:first-child .learning-sticky,
.learning-shell.is-right-minimal .learning-layout > aside:last-child .learning-sticky {
    display: flex;
    justify-content: center;
}

.learning-shell.is-left-minimal .learning-layout > aside:first-child .learning-sidebar-toggle,
.learning-shell.is-right-minimal .learning-layout > aside:last-child .learning-sidebar-toggle {
    width: 56px;
    height: 56px;
    min-height: 56px;
    margin-bottom: 0;
    border-radius: 18px;
    background: #fff;
    box-shadow: 0 14px 30px rgba(80, 43, 30, 0.10);
}

.learning-card {
    border: 1px solid rgba(122,31,51,0.08);
    border-radius: 28px;
    background: rgba(255,255,255,0.92);
    box-shadow: 0 20px 50px rgba(80, 43, 30, 0.08);
    overflow: hidden;
}

.learning-profile__cover {
    aspect-ratio: 4 / 3;
    background:
            linear-gradient(135deg, rgba(122,31,51,0.85), rgba(179,137,88,0.42)),
            var(--learning-profile-cover-image, url('/images/logo_dark.png')) center/cover;
}

.learning-profile__body {
    padding: 22px;
    text-align: center;
}

.learning-profile__avatar {
    width: 90px;
    height: 90px;
    border-radius: 24px;
    border: 4px solid rgba(255,255,255,0.96);
    box-shadow: 0 16px 30px rgba(122,31,51,0.16);
    margin-top: -64px;
    object-fit: cover;
    background: #fff;
}

.learning-profile__name {
    margin: 14px 0 4px;
    font-size: 1.35rem;
    font-weight: 800;
}

.learning-profile__meta {
    margin: 0;
    color: var(--brand-muted);
}

.learning-profile__cta {
    display: flex;
    gap: 12px;
    margin-top: 18px;
}

.learning-profile__cta .btn {
    flex: 1;
}

.learning-sidebar-menu {
    margin-top: 18px;
    padding: 12px;
}

.learning-sidebar-menu a {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 16px;
    border-radius: 18px;
    color: #1d2431;
    text-decoration: none;
    font-weight: 700;
    transition: background-color 0.18s ease, color 0.18s ease;
}

.learning-sidebar-menu a:hover {
    background: rgba(122,31,51,0.08);
    color: var(--brand-primary);
}

.learning-sidebar-menu__icon {
    width: 34px;
    height: 34px;
    border-radius: 12px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: rgba(122,31,51,0.08);
    color: var(--brand-primary);
    font-weight: 800;
}

.learning-main {
    min-width: 0;
}

.learning-scroll-panel {
    display: grid;
    gap: 18px;
}

.learning-topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 18px;
}

.learning-topbar__crumbs {
    color: var(--brand-muted);
    font-weight: 700;
}

.learning-topbar__crumbs strong {
    color: var(--brand-primary);
}

.learning-topbar__actions {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
    justify-content: flex-end;
}

.learning-progress-summary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    min-height: 2.45rem;
    padding: 0.48rem 0.9rem;
    border-radius: 999px;
    background: #1f2937;
    color: #fff;
    font-weight: 900;
    line-height: 1;
    box-shadow: 0 14px 28px rgba(24, 32, 45, 0.16);
    white-space: nowrap;
}

.learning-progress-summary__percent {
    color: #f25a2d;
    font-size: 1.12rem;
}

.learning-progress-summary__separator {
    color: rgba(255, 255, 255, 0.42);
}

.learning-progress-summary__lessons {
    font-size: 1rem;
}

.learning-hero {
    padding: 24px 26px;
    margin-bottom: 18px;
}

.learning-hero__eyebrow {
    color: var(--brand-primary);
    font-size: 0.84rem;
    font-weight: 800;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.learning-hero__title {
    margin: 10px 0 8px;
    font-size: clamp(1.8rem, 3vw, 2.6rem);
    line-height: 1.08;
    color: #18202d;
}

.learning-hero__sub {
    color: var(--brand-muted);
    line-height: 1.8;
    margin: 0 0 18px;
}

.learning-hero__stats {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.learning-pill {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 2.2rem;
    padding: 0.34rem 0.8rem;
    border-radius: 999px;
    background: rgba(122,31,51,0.08);
    color: var(--brand-primary);
    font-weight: 800;
    font-size: 0.82rem;
}

.learning-player {
    position: relative;
    overflow: hidden;
}

.learning-player__frame {
    position: relative; /* Gốc toạ độ cho nút Xem rộng */
    padding: 20px;
    background:
            radial-gradient(circle at top left, rgba(255,240,225,0.55), transparent 30%),
            linear-gradient(180deg, rgba(255,255,255,0.98), rgba(255,249,244,0.94));
}

.learning-player__video {
    position: relative;
    overflow: hidden;
    border-radius: 24px;
    box-shadow: 0 22px 44px rgba(26, 18, 15, 0.18);
    background: #0f1115;
}

/* --- YOUTUBE CUSTOM CONTROLS --- */
.youtube-custom-wrapper {
    position: relative;
    width: 100%;
    height: 100%;
    background: #000;
    overflow: hidden;
}

.youtube-custom-controls {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 20;
    background: linear-gradient(transparent, rgba(0,0,0,0.85));
    padding: 40px 15px 15px;
    display: flex;
    align-items: center;
    gap: 12px;
    opacity: 1;
    transition: opacity 0.3s ease;
}

.youtube-custom-wrapper.is-playing .youtube-custom-controls {
    opacity: 0;
}

.youtube-custom-wrapper:hover .youtube-custom-controls,
.youtube-custom-wrapper.controls-active .youtube-custom-controls {
    opacity: 1;
}

.youtube-range {
    height: 5px;
    accent-color: #e50914;
    cursor: pointer;
}

.youtube-time {
    color: #fff;
    font-size: 0.85rem;
    font-family: monospace;
    user-select: none;
}

#youtube-clean-play {
    background: none;
    border: none;
    color: white;
    font-size: 1.5rem;
    cursor: pointer;
    padding: 0 5px;
    display: flex;
    align-items: center;
    justify-content: center;
}

#youtube-clean-play:hover {
    color: #e50914;
}

.learning-player__gate {
    min-height: clamp(280px, 46vw, 520px);
    border-radius: 24px;
    background:
            radial-gradient(circle at top, rgba(255, 255, 255, 0.10), transparent 34%),
            #050505;
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 32px;
    box-shadow: 0 22px 44px rgba(26, 18, 15, 0.18);
}

.learning-player__gate-inner {
    max-width: 520px;
}

.learning-player__gate-icon {
    width: 78px;
    height: 78px;
    border-radius: 28px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 18px;
    background: rgba(255, 255, 255, 0.10);
    font-size: 2.5rem;
}

.learning-player__gate h2 {
    margin: 0 0 10px;
    color: #fff;
    font-size: clamp(1.35rem, 2.2vw, 2rem);
}

.learning-player__gate p {
    margin: 0 0 22px;
    color: rgba(255, 255, 255, 0.78);
    line-height: 1.7;
}

.learning-player__gate .btn {
    min-width: 170px;
}

.learning-player__info {
    padding: 0 20px 24px;
}

.learning-player__headline {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
    margin-bottom: 12px;
}

.learning-player__headline h1 {
    margin: 0;
    font-size: 2rem;
    color: #18202d;
}

.learning-player__actions {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-top: 18px;
}

.learning-player__nav {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.learning-video-mode-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    min-height: 2.45rem;
    border: 1px solid rgba(122,31,51,0.28);
    border-radius: 14px;
    background: rgba(255, 255, 255, 0.9);
    color: var(--brand-primary);
    font-weight: 800;
    padding: 0.5rem 0.85rem;
    transition: background-color 0.18s ease, border-color 0.18s ease, color 0.18s ease, transform 0.18s ease;
}

.learning-video-mode-toggle:hover,
.learning-video-mode-toggle:focus {
    background: rgba(122,31,51,0.06);
    border-color: rgba(122,31,51,0.42);
    color: var(--brand-primary);
    transform: translateY(-1px);
}

.learning-video-mode-toggle__icon {
    font-size: 1.05rem;
    line-height: 1;
}

/* Nút Xem Rộng (Floating) */
.learning-video-mode-toggle.custom-floating-btn {
    position: absolute;
    top: 16px;
    right: 16px;
    z-index: 50;
    background: rgba(0, 0, 0, 0.65);
    color: white;
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 8px;
    padding: 8px 12px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.3);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    margin: 0;
}

.learning-video-mode-toggle.custom-floating-btn:hover,
.learning-video-mode-toggle.custom-floating-btn:focus {
    background: rgba(0, 0, 0, 0.9);
    border-color: rgba(255, 255, 255, 0.5);
    color: white;
    transform: scale(1.03);
}

.learning-player__video iframe {
    pointer-events: auto;
}

.learning-player__complete-btn {
    background: linear-gradient(135deg, #16a34a, #22c55e);
    border-color: #16a34a;
    color: #fff;
    box-shadow: 0 14px 28px rgba(22, 163, 74, 0.22);
}

.learning-player__complete-btn:hover,
.learning-player__complete-btn:focus {
    background: linear-gradient(135deg, #15803d, #16a34a);
    border-color: #15803d;
    color: #fff;
    transform: translateY(-1px);
}

.learning-player__next-btn {
    background: rgba(255, 255, 255, 0.84);
    border: 1px solid rgba(122,31,51,0.28);
    color: var(--brand-primary);
}

.learning-player__next-btn:hover,
.learning-player__next-btn:focus {
    background: rgba(122,31,51,0.06);
    border-color: rgba(122,31,51,0.42);
    color: var(--brand-primary);
}

.learning-notes {
    margin-top: 18px;
    padding: 22px 24px;
}

.learning-layout > aside:last-child .learning-notes {
    margin-top: 0;
    margin-bottom: 12px;
}

.learning-notes__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
    flex-wrap: wrap;
    margin-bottom: 16px;
}

.learning-notes__title {
    margin: 0;
    color: #18202d;
    font-size: 1.35rem;
}

.learning-note-trigger {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    min-height: 2.75rem;
    border: 1px solid rgba(122, 31, 51, 0.18);
    border-radius: 16px;
    background: #1f2937;
    color: #fff;
    font-weight: 900;
    padding: 0.55rem 0.9rem;
    box-shadow: 0 14px 28px rgba(24, 32, 45, 0.16);
}

.learning-note-trigger:hover,
.learning-note-trigger:focus {
    background: #111827;
    color: #fff;
}

.learning-note-trigger__icon {
    width: 24px;
    height: 24px;
    border-radius: 999px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: #f25a2d;
    color: #fff;
    font-size: 1.1rem;
    line-height: 1;
}

.learning-note-trigger__time {
    color: #fbbf24;
    min-width: 3.2rem;
    text-align: left;
}

.learning-note-form {
    margin-bottom: 16px;
    padding: 16px;
    border-radius: 18px;
    background: rgba(250, 247, 243, 0.92);
    border: 1px solid rgba(122, 31, 51, 0.10);
}

.learning-note-form__meta {
    margin-bottom: 10px;
    color: var(--brand-muted);
    font-weight: 700;
}

.learning-note-form__time {
    color: var(--brand-primary);
    font-weight: 900;
}

.learning-note-form__actions {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
    margin-top: 12px;
}

.learning-notes__list {
    display: grid;
    gap: 10px;
}

.learning-note-item {
    width: 100%;
    display: grid;
    grid-template-columns: auto minmax(0, 1fr);
    gap: 12px;
    text-align: left;
    padding: 14px 16px;
    border: 1px solid rgba(122, 31, 51, 0.08);
    border-radius: 18px;
    background: #fff;
    color: inherit;
    cursor: pointer;
    transition: border-color 0.18s ease, box-shadow 0.18s ease, transform 0.18s ease;
}

.learning-note-item:hover,
.learning-note-item:focus {
    border-color: rgba(122, 31, 51, 0.22);
    box-shadow: 0 12px 24px rgba(122, 31, 51, 0.08);
    transform: translateY(-1px);
}

.learning-note-item__time {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 4.2rem;
    height: 2rem;
    border-radius: 999px;
    background: rgba(242, 90, 45, 0.12);
    color: #c2410c;
    font-weight: 900;
}

.learning-note-item__body {
    margin: 0 0 4px;
    color: #18202d;
    font-weight: 700;
    line-height: 1.55;
}

.learning-note-item__created {
    color: var(--brand-muted);
    font-size: 0.86rem;
}

.learning-notes__empty {
    margin: 0;
    padding: 16px;
    border-radius: 18px;
    background: rgba(250, 247, 243, 0.92);
    color: var(--brand-muted);
}

.learning-rich-content {
    margin-top: 18px;
    padding: 24px 26px;
}

.learning-rich-content__body {
    color: #334155;
    line-height: 1.9;
}

.learning-rich-content__body h1,
.learning-rich-content__body h2,
.learning-rich-content__body h3 {
    color: #18202d;
    margin-top: 1.3em;
    margin-bottom: 0.55em;
}

.learning-comments {
    margin-top: 18px;
    padding: 24px 26px;
}

.learning-comments__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 18px;
}

.learning-comments__thread {
    display: grid;
    gap: 16px;
}

.learning-comment {
    --comment-depth: 0;
    display: grid;
    grid-template-columns: 52px minmax(0, 1fr);
    gap: 14px;
    padding: 18px;
    margin-left: calc(var(--comment-depth) * 24px);
    border-radius: 22px;
    background: rgba(250,247,243,0.92);
    border: 1px solid rgba(122,31,51,0.08);
}

.learning-comment__avatar {
    width: 52px;
    height: 52px;
    border-radius: 18px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(122,31,51,0.9), rgba(179,137,88,0.72));
    color: #fff;
    font-weight: 800;
    letter-spacing: 0.04em;
}

.learning-comment__meta {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
    margin-bottom: 6px;
}

.learning-comment__meta strong {
    color: #18202d;
}

.learning-comment__body {
    color: #334155;
    line-height: 1.75;
}

.learning-comment__actions {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 10px;
}

.learning-comment__action {
    padding: 0;
    border: none;
    background: transparent;
    color: var(--brand-primary);
    font-size: 0.88rem;
    font-weight: 800;
    cursor: pointer;
}

.learning-comment__action:hover {
    text-decoration: underline;
}

.learning-comment__replies {
    margin-top: 12px;
    display: grid;
    gap: 10px;
}

.learning-comment__reply {
    padding: 14px 16px;
    border-radius: 18px;
    background: #fff;
    border: 1px solid rgba(122,31,51,0.08);
}

.learning-comment__reply-form {
    margin-top: 12px;
    padding: 14px 16px;
    border-radius: 18px;
    background: rgba(255,255,255,0.9);
    border: 1px dashed rgba(122,31,51,0.16);
}

.learning-comment__reply-form textarea {
    min-height: 110px;
}

.learning-comment__reply-form-actions {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
    margin-top: 12px;
}

.learning-curriculum {
    padding: 18px;
}

.learning-curriculum__header {
    margin-bottom: 16px;
}

.learning-curriculum__header h2 {
    margin: 0 0 8px;
    font-size: 1.2rem;
    color: #18202d;
}

.learning-curriculum__header p {
    margin: 0;
    color: var(--brand-muted);
    line-height: 1.7;
}

.learning-curriculum__list {
    display: grid;
    gap: 12px;
}

.learning-curriculum__item {
    display: grid;
    grid-template-columns: 88px minmax(0, 1fr);
    gap: 12px;
    text-decoration: none;
    color: inherit;
    padding: 12px;
    border-radius: 22px;
    border: 1px solid rgba(122,31,51,0.08);
    background: #fff;
    position: relative;
    transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease, background 0.18s ease;
}

.learning-curriculum__item:hover {
    transform: translateY(-2px);
    border-color: rgba(122,31,51,0.16);
    box-shadow: 0 14px 28px rgba(122,31,51,0.08);
}

.learning-curriculum__item.is-active {
    border-color: rgba(122,31,51,0.26);
    background: linear-gradient(180deg, rgba(255,248,243,0.98), rgba(255,255,255,0.98));
    box-shadow: 0 16px 32px rgba(122,31,51,0.10);
}

.learning-curriculum__item.is-completed {
    border-color: rgba(34, 197, 94, 0.34);
    background: linear-gradient(135deg, rgba(236, 253, 245, 0.98), rgba(255, 255, 255, 0.98));
    box-shadow: 0 12px 28px rgba(22, 163, 74, 0.12);
}

.learning-curriculum__item.is-completed::after {
    content: "✓";
    position: absolute;
    top: 12px;
    right: 12px;
    width: 28px;
    height: 28px;
    border-radius: 999px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: #16a34a;
    color: #fff;
    font-weight: 900;
    box-shadow: 0 8px 18px rgba(22, 163, 74, 0.24);
}

.learning-curriculum__item.is-completed.is-active {
    border-color: rgba(22, 163, 74, 0.58);
    background: linear-gradient(135deg, rgba(220, 252, 231, 0.98), rgba(255, 255, 255, 0.98));
}

.learning-curriculum__item.is-completed .learning-curriculum__thumb {
    background:
            linear-gradient(135deg, rgba(21, 128, 61, 0.92), rgba(34, 197, 94, 0.62)),
            var(--lesson-thumb-image, url('/images/logo_dark.png')) center/cover;
}

.learning-curriculum__thumb {
    border-radius: 18px;
    background:
            linear-gradient(135deg, rgba(122,31,51,0.94), rgba(179,137,88,0.65)),
            var(--lesson-thumb-image, url('/images/logo_dark.png')) center/cover;
    color: #fff;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 12px;
    min-height: 88px;
}

.learning-curriculum__thumb strong {
    font-size: 1.4rem;
    line-height: 1;
}

.learning-curriculum__thumb span {
    font-size: 0.74rem;
    font-weight: 800;
    letter-spacing: 0.04em;
}

.learning-curriculum__body {
    min-width: 0;
}

.learning-curriculum__meta {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
    margin-bottom: 8px;
}

.learning-curriculum__meta .learning-pill {
    min-height: 1.9rem;
    font-size: 0.74rem;
    padding: 0.25rem 0.65rem;
}

.learning-curriculum__status-pill.is-completed {
    background: rgba(22, 163, 74, 0.12);
    color: #15803d;
    border-color: rgba(22, 163, 74, 0.20);
}

.learning-curriculum__title {
    margin: 0 0 6px;
    color: #18202d;
    font-size: 1rem;
    line-height: 1.45;
}

.learning-curriculum__sub {
    margin: 0;
    color: var(--brand-muted);
    font-size: 0.92rem;
}

.learning-curriculum__drag-handle {
    display:none;
}

@media (min-width: 992px) {
    .learning-shell {
        padding-bottom: 40px;
    }

    .learning-shell.is-video-playing .learning-player {
        position: sticky;
        top: 104px;
        z-index: 5;
        margin-bottom: 18px;
    }

    .learning-player__video.ratio {
        height: clamp(260px, 38vh, 420px);
        max-height: 420px;
        aspect-ratio: 16 / 9;
    }

    .learning-player__video.ratio::before {
        display: none;
    }

    .learning-player__video iframe,
    .learning-player__video video {
        height: 100%;
    }

    .learning-player__gate {
        min-height: clamp(240px, 38vh, 420px);
    }

    .learning-player__info {
        padding: 0 16px 16px;
        background: rgba(255, 255, 255, 0.96);
    }

    .learning-player__headline {
        margin-bottom: 8px;
    }

    .learning-player__headline h1 {
        font-size: 1.45rem;
        line-height: 1.25;
    }

    .learning-player__actions {
        margin-top: 12px;
    }

    .learning-scroll-panel {
        overflow: visible;
        padding-right: 0;
        scroll-padding-top: 16px;
    }

    .learning-scroll-panel .learning-hero,
    .learning-scroll-panel .learning-notes,
    .learning-scroll-panel .learning-rich-content,
    .learning-scroll-panel .learning-comments {
        margin-top: 0;
    }

    .learning-layout > aside:last-child .learning-sticky {
        top: 104px;
        max-height: calc(100vh - 128px);
    }

    .learning-curriculum {
        display: flex;
        flex-direction: column;
        /*max-height: calc(100vh - 128px);*/
        max-height: 100%;
    }

    .learning-curriculum__list {
        min-height: 0;
        overflow-y: auto;
        overscroll-behavior: contain;
        padding-right: 4px;
    }

    .learning-shell.is-video-wide {
        max-width: 1520px;
    }

    .learning-shell.is-video-wide .learning-layout {
        grid-template-columns: minmax(0, 1fr);
    }

    .learning-shell.is-video-wide .learning-layout > aside {
        display: none;
    }

    .learning-shell.is-video-wide .learning-main {
        max-width: 1320px;
        width: 100%;
        margin: 0 auto;
    }

    .learning-shell.is-video-wide.is-video-playing .learning-player {
        top: 92px;
    }

    body.learning-page.learning-nav-hidden .learning-shell.is-video-playing .learning-player,
    body.learning-page.learning-nav-hidden .learning-layout > aside:first-child .learning-sticky,
    body.learning-page.learning-nav-hidden .learning-layout > aside:last-child .learning-sticky,
    body.learning-page.learning-nav-hidden .learning-shell.is-video-wide.is-video-playing .learning-player {
        top: 16px;
    }

    body.learning-page.learning-nav-hidden .learning-layout > aside:last-child .learning-sticky {
        max-height: calc(100vh - 32px);
    }

    body.learning-page.learning-nav-hidden .learning-curriculum {
        /*max-height: calc(100vh - 32px);*/
        max-height: 100%;
    }

    .learning-shell.is-video-wide .learning-player__video.ratio {
        height: min(70vh, 760px);
        max-height: 760px;
    }

    .learning-shell.is-video-wide .learning-player__gate {
        min-height: min(70vh, 760px);
    }

    .learning-shell.is-video-wide .learning-player__headline h1 {
        font-size: clamp(1.55rem, 2vw, 2.2rem);
    }

    .learning-shell.is-left-minimal:not(.is-video-wide) .learning-layout {
        grid-template-columns: 56px minmax(0, 1fr) 340px;
    }

    .learning-shell.is-right-minimal:not(.is-video-wide) .learning-layout {
        grid-template-columns: 300px minmax(0, 1fr) 56px;
    }

    .learning-shell.is-left-minimal.is-right-minimal:not(.is-video-wide) .learning-layout {
        grid-template-columns: 56px minmax(0, 1fr) 56px;
    }

    .learning-shell.is-left-minimal .learning-profile,
    .learning-shell.is-left-minimal .learning-sidebar-menu,
    .learning-shell.is-left-minimal #learning-left-minimal-text,
    .learning-shell.is-right-minimal .learning-notes,
    .learning-shell.is-right-minimal .learning-curriculum,
    .learning-shell.is-right-minimal #learning-right-minimal-text {
        display: none;
    }

    .learning-shell.is-left-minimal:not(.is-video-wide) .learning-player__video.ratio,
    .learning-shell.is-right-minimal:not(.is-video-wide) .learning-player__video.ratio {
        height: clamp(340px, 48vh, 560px);
        max-height: 560px;
    }

    .learning-shell.is-left-minimal.is-right-minimal:not(.is-video-wide) .learning-player__video.ratio {
        height: clamp(380px, 56vh, 660px);
        max-height: 660px;
    }

    .learning-shell.is-left-minimal:not(.is-video-wide) .learning-player__gate,
    .learning-shell.is-right-minimal:not(.is-video-wide) .learning-player__gate {
        min-height: clamp(340px, 48vh, 560px);
    }

    .learning-shell.is-left-minimal.is-right-minimal:not(.is-video-wide) .learning-player__gate {
        min-height: clamp(380px, 56vh, 660px);
    }
}

@media (max-width: 1250px) {
    .learning-layout {
        grid-template-columns: 280px minmax(0, 1fr);
    }

    .learning-layout > aside:last-child {
        grid-column: 1 / -1;
    }

    .learning-layout > aside:last-child .learning-sticky {
        position: static;
    }
}

@media (max-width: 991px) {
    body.learning-page .vc-header {
        display: none;
    }

    .learning-shell {
        padding: 0 0 92px;
    }

    .learning-layout {
        display: block;
    }

    .learning-layout > aside:first-child {
        display: none;
    }

    .learning-shell {
        height: auto;
        max-height: none;
        overflow: visible;
    }

    .learning-scroll-panel {
        overflow: visible;
        padding: 0 14px 24px;
    }

    .learning-topbar {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        z-index: 35;
        min-height: 48px;
        margin: 0;
        padding: 8px 12px;
        align-items: center;
        flex-direction: row;
        background: #1f2937;
        color: #fff;
        box-shadow: 0 10px 24px rgba(15, 23, 42, 0.18);
    }

    .learning-topbar__crumbs {
        min-width: 0;
        flex: 1;
        color: rgba(255, 255, 255, 0.88);
        overflow: hidden;
        text-overflow: ellipsis;
        white-space: nowrap;
    }

    .learning-topbar__crumbs a,
    .learning-topbar__crumbs strong {
        color: #fff;
        text-decoration: none;
    }

    .learning-topbar__actions {
        flex: 0 0 auto;
        justify-content: flex-end;
    }

    .learning-topbar__actions .btn {
        display: none;
    }

    .learning-progress-summary {
        min-height: 2rem;
        padding: 0.35rem 0.65rem;
        box-shadow: none;
        background: transparent;
    }

    .learning-progress-summary__percent {
        font-size: 0.95rem;
    }

    .learning-progress-summary__lessons {
        font-size: 0.86rem;
    }

    .learning-main {
        padding-top: 48px;
    }

    .learning-player {
        overflow: visible;
        border-radius: 0;
        border-left: 0;
        border-right: 0;
        box-shadow: none;
        padding-top: calc(100vw * 9 / 16);
    }

    .learning-player__frame {
        position: fixed;
        top: 48px;
        left: 0;
        right: 0;
        z-index: 34;
        padding: 0;
        border-radius: 0;
        background: #050505;
        box-shadow: 0 12px 26px rgba(15, 23, 42, 0.22);
    }

    .learning-player__video.ratio {
        height: calc(100vw * 9 / 16);
        max-height: 48vh;
    }

    .learning-player__video.ratio::before {
        display: none;
    }

    .learning-player__video iframe,
    .learning-player__video video {
        height: 100%;
    }

    .learning-player__video {
        border-radius: 0;
        box-shadow: none;
    }

    .learning-player__info {
        padding: 18px 14px;
        background: #fff;
    }

    .learning-player__headline h1 {
        font-size: 1.45rem;
        line-height: 1.25;
    }

    .learning-player__actions {
        gap: 10px;
    }

    .learning-video-mode-toggle {
        display: none;
    }

    .learning-layout > aside:last-child {
        position: fixed;
        left: 0;
        right: 0;
        bottom: 0;
        z-index: 36;
        padding: 10px 12px 12px;
        background: rgba(255, 255, 255, 0.96);
        border-top: 1px solid rgba(122, 31, 51, 0.10);
        box-shadow: 0 -16px 32px rgba(15, 23, 42, 0.14);
        backdrop-filter: blur(12px);
    }

    .learning-layout > aside:last-child .learning-sticky {
        position: static;
        max-height: none;
        display: flex;
        align-items: center;
        gap: 8px;
    }

    .learning-layout > aside:last-child .learning-sidebar-toggle {
        display: none;
    }

    .learning-layout > aside:last-child .learning-notes {
        flex: 1;
        margin: 0;
        padding: 0;
        border: 0;
        box-shadow: none;
        background: transparent;
        overflow: visible;
    }

    .learning-notes__header {
        margin-bottom: 8px;
    }

    .learning-notes__header > div {
        display: none;
    }

    .learning-note-trigger {
        min-height: 2.35rem;
        width: 100%;
        border-radius: 12px;
        padding: 0.45rem 0.75rem;
    }

    .learning-mobile-lessons-button {
        min-height: 2.35rem;
        border: 1px solid rgba(122, 31, 51, 0.18);
        border-radius: 12px;
        background: #fff;
        color: var(--brand-primary);
        font-weight: 900;
        padding: 0.45rem 0.85rem;
        white-space: nowrap;
        display: inline-flex;
        align-items: center;
        justify-content: center;
    }

    .learning-mobile-lessons-button:hover,
    .learning-mobile-lessons-button:focus {
        background: rgba(122, 31, 51, 0.06);
        color: var(--brand-primary);
    }

    .learning-note-form {
        position: fixed;
        left: 12px;
        right: 12px;
        bottom: 74px;
        z-index: 42;
        max-height: 22vh;
        overflow-y: auto;
        box-shadow: 0 18px 36px rgba(15, 23, 42, 0.18);
    }

    .learning-notes__list,
    .learning-notes__empty {
        display: none;
    }

    .learning-curriculum {
        position: fixed;
        left: 0;
        right: 0;
        bottom: 0;
        z-index: 41;
        min-height: 0;
        max-height: min(74vh, 620px);
        padding: 18px 14px calc(18px + env(safe-area-inset-bottom));
        border: 1px solid rgba(122, 31, 51, 0.10);
        border-radius: 24px 24px 0 0;
        background: rgba(255, 255, 255, 0.98);
        box-shadow: 0 -22px 48px rgba(15, 23, 42, 0.22);
        overflow: hidden;
        transform: translateY(110%);
        transition: transform 0.22s ease;
        touch-action: pan-y;
        will-change: transform;
    }

    .learning-curriculum__drag-handle {
        display: block;
        width: 46px;
        height: 5px;
        margin: 0 auto 12px;
        border: 0;
        border-radius: 999px;
        background: rgba(122, 31, 51, 0.20);
        cursor: grab;
    }

    .learning-curriculum__header {
        display: block;
        margin-bottom: 12px;
    }

    .learning-curriculum__list {
        display: grid;
        gap: 10px;
        max-height: calc(min(74vh, 620px) - 96px);
        overflow-y: auto;
        padding: 2px 4px 8px;
        overscroll-behavior: contain;
    }

    .learning-curriculum__item {
        grid-template-columns: 64px minmax(0, 1fr);
        gap: 10px;
        padding: 10px;
        border-radius: 16px;
    }

    .learning-curriculum__thumb {
        min-height: 64px;
        padding: 8px;
        border-radius: 14px;
    }

    .learning-curriculum__thumb strong {
        font-size: 1rem;
    }

    .learning-curriculum__thumb span {
        font-size: 0.6rem;
    }

    .learning-curriculum__meta {
        display: flex;
    }

    .learning-curriculum__sub {
        display: none;
    }

    .learning-curriculum__title {
        margin: 0;
        font-size: 0.88rem;
        line-height: 1.35;
        display: -webkit-box;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
        overflow: hidden;
    }

    .learning-scroll-video-button {
        display: none;
    }

    .learning-mobile-lessons-backdrop {
        position: fixed;
        inset: 0;
        z-index: 40;
        display: none;
        background: rgba(15, 23, 42, 0.36);
    }

    .learning-shell.is-mobile-lessons-open .learning-mobile-lessons-backdrop {
        display: block;
    }

    .learning-shell.is-mobile-lessons-open .learning-curriculum {
        transform: translateY(0);
    }

    .learning-shell.is-mobile-lessons-dragging .learning-curriculum {
        transition: none;
    }
}

@media (max-width: 575px) {
    .learning-topbar__actions {
        align-items: center;
        flex-direction: row;
    }

    .learning-progress-summary {
        width: auto;
        justify-content: flex-end;
    }

    .learning-topbar__actions .btn {
        display: none;
    }
}

.fullscreen-action-menu, .player-controls-top {
    display: none !important;
}