/* ══════════════════════════════════════════════════════════════
   LinkedIn Learning Course Detail Layout
   Matches: linkedin.com/learning/course-detail pattern
   Design system vars ONLY (--uai-*), ZERO hard-coded hex
   ══════════════════════════════════════════════════════════════ */

/* ── Container ── */
.ll-container {
    width: min(1180px, calc(100% - 40px));
    margin-inline: auto;
    padding-inline: 0;
}

/* ── Hero (LinkedIn dark) ── */
.ll-hero {
    background: var(--uai-ink, #102c32);
    padding: 38px 0 0;
    color: #fff;
}

.ll-crumb {
    margin-bottom: 28px;
    color: rgba(255,255,255,.6);
    font-size: 13px;
    font-weight: 650;
}
.ll-crumb a {
    color: rgba(255,255,255,.65);
    text-decoration: none;
}
.ll-crumb a:hover { color: #fff; }
.ll-crumb span + span { padding: 0 8px; color: var(--uai-accent); }

/* Hero Grid — video preview lớn hơn (1.15fr vs 1fr) */
.ll-hero__grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(380px, 1.15fr);
    gap: clamp(36px, 5vw, 64px);
    align-items: center;
}
.ll-hero {
    position: relative;
    isolation: isolate;
}
/* Decorative glow behind preview card */
.ll-hero::before {
    content: '';
    position: absolute;
    top: -30%;
    right: -10%;
    width: 55%;
    height: 120%;
    background: radial-gradient(ellipse at center, rgba(13,148,136,.16) 0%, transparent 60%);
    pointer-events: none;
    z-index: -1;
}
.ll-hero::after {
    content: '';
    position: absolute;
    bottom: -20%;
    left: -15%;
    width: 40%;
    height: 80%;
    background: radial-gradient(ellipse at center, rgba(79,70,229,.10) 0%, transparent 65%);
    pointer-events: none;
    z-index: -1;
}
.ll-eyebrow {
    color: var(--uai-accent);
    font-size: 11px;
    letter-spacing: .14em;
    font-weight: 800;
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 8px;
}
.ll-status-dot {
    width: 7px;
    height: 7px;
    background: var(--uai-accent);
    border-radius: 50%;
    box-shadow: 0 0 0 4px rgba(13,148,136,.15);
}
.ll-hero h1 {
    margin: 14px 0 10px;
    color: #fff;
    font-size: clamp(38px, 5vw, 62px);
    letter-spacing: -.055em;
    line-height: 1.05;
}
.ll-hero__sub {
    max-width: 650px;
    margin: 0 0 16px;
    color: rgba(255,255,255,.85);
    font-size: clamp(20px, 2.5vw, 30px);
    line-height: 1.25;
    font-weight: 700;
}
.ll-hero__instructor {
    margin: 0 0 14px;
    color: rgba(255,255,255,.6);
    font-size: 14px;
}
.ll-hero__instructor strong { color: rgba(255,255,255,.85); }

/* Rating — premium gold glow */
.ll-rating {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 18px;
    flex-wrap: wrap;
}
.ll-rating__stars {
    color: var(--uai-gold);
    font-size: 16px;
    letter-spacing: 3px;
    filter: drop-shadow(0 0 6px rgba(251,191,36,.4));
}
.ll-rating__val {
    color: #fff;
    font-size: 16px;
    font-weight: 800;
    background: var(--uai-gold);
    color: var(--uai-ink);
    padding: 2px 8px;
    border-radius: 6px;
    line-height: 1;
}
.ll-rating__count {
    color: rgba(255,255,255,.55);
    font-size: 13px;
}
.ll-rating__label {
    color: rgba(255,255,255,.65);
    font-size: 13px;
    font-weight: 600;
}

/* Hero lead */
.ll-hero__lead {
    max-width: 660px;
    margin: 0 0 24px;
    color: rgba(255,255,255,.7);
    font-size: 16px;
    line-height: 1.7;
}

/* Hero meta */
.ll-hero__meta {
    display: flex;
    flex-wrap: wrap;
    gap: 10px 24px;
    margin-bottom: 26px;
    color: rgba(255,255,255,.8);
    font-size: 13px;
}
.ll-hero__meta span {
    display: flex;
    flex-direction: column;
    gap: 5px;
}
.ll-hero__meta strong {
    color: #fff;
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: .08em;
}

/* Hero actions */
.ll-hero__actions {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 14px;
    margin-bottom: 16px;
}
.ll-hero__note {
    font-size: 12px;
    color: rgba(255,255,255,.45);
    margin: 0;
    line-height: 1.6;
}

/* Preview card — Premium glow + hover lift */
.ll-preview {
    overflow: hidden;
    background: var(--uai-surface);
    color: var(--uai-ink);
    border-radius: var(--uai-radius-lg);
    box-shadow:
        0 0 0 1px rgba(255,255,255,.08),
        0 18px 42px rgba(0,0,0,.28),
        0 0 80px 20px rgba(13,148,136,.12);
    transition: transform .35s cubic-bezier(.22,1,.36,1), box-shadow .35s;
    position: relative;
}
.ll-preview:hover {
    transform: translateY(-6px) scale(1.01);
    box-shadow:
        0 0 0 1px rgba(255,255,255,.12),
        0 28px 56px rgba(0,0,0,.35),
        0 0 100px 30px rgba(13,148,136,.18);
}
.ll-preview__media {
    aspect-ratio: 16/9;
    background: var(--uai-ink);
    position: relative;
}
.ll-preview__media iframe {
    display: block;
    width: 100%;
    height: 100%;
    border: 0;
}
/* LIVE badge overlay */
.ll-preview__media::after {
    content: 'HỌC THỬ';
    position: absolute;
    top: 14px;
    right: 14px;
    background: var(--uai-accent);
    color: var(--uai-ink);
    font-size: 10px;
    font-weight: 800;
    letter-spacing: .1em;
    padding: 5px 12px;
    border-radius: 999px;
    box-shadow: 0 2px 12px rgba(13,148,136,.4);
}
.ll-preview__body {
    display: grid;
    gap: 8px;
    padding: 22px 24px 24px;
    border-top: 1px solid var(--uai-border);
}
.ll-preview__body strong { font-size: 17px; font-weight: 800; }
.ll-preview__body span { color: var(--uai-muted); font-size: 13px; line-height: 1.5; }
.ll-preview__body a {
    margin-top: 6px;
    color: var(--uai-accent);
    font-size: 13px;
    font-weight: 800;
    text-decoration: none;
    transition: opacity .2s;
}
.ll-preview__body a:hover { opacity: .7; }

/* Summary strip — centered chips, animated */
.ll-hero__summary {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    gap: 14px 22px;
    padding: 28px 24px;
    background: linear-gradient(180deg, rgba(255,255,255,.03) 0%, rgba(255,255,255,.01) 100%);
    border-top: 1px solid rgba(255,255,255,.06);
    border-bottom: 1px solid rgba(255,255,255,.06);
    margin-top: 28px;
}
.ll-hero__summary > div {
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    padding: 12px 20px;
    background: rgba(255,255,255,.04);
    border: 1px solid rgba(255,255,255,.08);
    border-radius: 14px;
    transition: all .3s cubic-bezier(.22,1,.36,1);
    animation: ll-chip-in .55s cubic-bezier(.22,1,.36,1) both;
    /* Prevent awkward wrapping */
    white-space: nowrap;
}
.ll-hero__summary > div:nth-child(1) { animation-delay: .05s; }
.ll-hero__summary > div:nth-child(2) { animation-delay: .10s; }
.ll-hero__summary > div:nth-child(3) { animation-delay: .15s; }
.ll-hero__summary > div:nth-child(4) { animation-delay: .20s; }
.ll-hero__summary > div:hover {
    background: rgba(13,148,136,.12);
    border-color: var(--uai-accent);
    transform: translateY(-3px);
    box-shadow: 0 8px 28px rgba(13,148,136,.15);
}
.ll-hero__summary strong {
    color: var(--uai-accent);
    font-size: 11px;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: .1em;
    white-space: nowrap;
}
.ll-hero__summary span {
    color: var(--uai-ink);
    font-size: 13px;
    font-weight: 500;
    line-height: 1.45;
    text-align: center;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 280px;
}
@keyframes ll-chip-in {
    from { opacity: 0; transform: translateY(14px) scale(.92); }
    to   { opacity: 1; transform: translateY(0) scale(1); }
}
@media (max-width: 640px) {
    .ll-hero__summary { gap: 10px 14px; padding: 22px 16px; }
    .ll-hero__summary > div { padding: 10px 16px; min-width: 120px; }
    .ll-hero__summary strong { font-size: 10px; }
    .ll-hero__summary span { font-size: 12px; max-width: 180px; }
}

/* ── Buttons ── */
.ll-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    border-radius: var(--uai-radius);
    padding: 12px 24px;
    font-size: 1rem;
    font-weight: 700;
    cursor: pointer;
    border: none;
    text-decoration: none;
    transition: all .2s var(--uai-transition);
    white-space: nowrap;
    min-height: 44px;
}
.ll-btn--primary {
    background: var(--uai-cta);
    color: #fff;
    box-shadow: 0 4px 16px rgba(234,88,12,.35);
}
.ll-btn--primary:hover {
    background: var(--uai-cta-hover, #c2410c);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(234,88,12,.4);
}
.ll-btn--ghost {
    background: transparent;
    color: #fff;
    border: 1px solid rgba(255,255,255,.25);
}
.ll-btn--ghost:hover {
    background: rgba(255,255,255,.1);
    transform: translateY(-2px);
}
.ll-btn--block { width: 100%; }

/* ── Main Layout (2-col) ── */
.ll-layout {
    padding: 52px 0 40px;
    background: var(--uai-surface);
    color: var(--uai-ink);
}
.ll-layout__grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 320px;
    gap: 54px;
}
.ll-main { min-width: 0; }

/* Blocks */
.ll-block {
    padding: 0 0 34px;
    margin: 0 0 34px;
    border-bottom: 1px solid var(--uai-border);
}
.ll-block:last-child { border-bottom: 0; }
.ll-block h2 {
    margin: 0 0 16px;
    color: var(--uai-ink);
    font-size: 24px;
    letter-spacing: -.025em;
    line-height: 1.3;
}
.ll-block p { max-width: 760px; margin: 0 0 13px; color: var(--uai-muted); font-size: 15px; line-height: 1.75; }
.ll-block__muted { color: var(--uai-muted) !important; font-size: 13px !important; }

/* Objectives */
.ll-objectives {
    margin: 0;
    padding: 0 0 0 22px;
    columns: 2;
    column-gap: 28px;
}
.ll-objectives li {
    break-inside: avoid;
    position: relative;
    padding: 6px 0 6px 24px;
    color: var(--uai-muted);
    font-size: 14px;
    line-height: 1.5;
}
.ll-objectives li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--uai-accent);
    font-weight: 900;
}

/* Skills tags */
.ll-skills {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px 28px;
}
.ll-skills span {
    position: relative;
    padding-left: 24px;
    color: var(--uai-muted);
    font-size: 14px;
    line-height: 1.5;
}
.ll-skills span::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--uai-accent);
    font-weight: 900;
}

/* ── Accordion ── */
.ll-accordion {
    overflow: hidden;
    border: 1px solid var(--uai-border);
    border-radius: var(--uai-radius-lg);
}
.ll-module { border-bottom: 1px solid var(--uai-border); }
.ll-module:last-child { border-bottom: 0; }
.ll-module__head {
    display: grid;
    grid-template-columns: 22px 60px minmax(0, 1fr) auto auto;
    align-items: center;
    gap: 10px;
    width: 100%;
    padding: 16px 18px;
    border: 0;
    background: var(--uai-surface);
    color: var(--uai-ink);
    text-align: left;
    cursor: pointer;
    font: inherit;
    transition: background .15s;
}
.ll-module__head:hover { background: var(--uai-paper); }
.ll-module__chevron {
    color: var(--uai-accent);
    font-size: 22px;
    line-height: 1;
    transition: transform .2s;
}
.ll-module.is-open .ll-module__chevron { transform: rotate(90deg); }
.ll-module__code {
    font-size: 11px;
    font-weight: 800;
    letter-spacing: .1em;
    color: var(--uai-brand);
}
.ll-module__title { font-size: 14px; font-weight: 700; }
.ll-module__meta { color: var(--uai-muted); font-size: 12px; white-space: nowrap; }
.ll-module__badge {
    font-size: 10px;
    font-weight: 800;
    letter-spacing: .1em;
    padding: 3px 8px;
    border-radius: 999px;
    white-space: nowrap;
}
.ll-module__badge.is-done { background: var(--uai-accent-bg); color: var(--uai-accent); }
.ll-module__badge.is-current { background: var(--uai-brand-bg); color: var(--uai-brand); }

/* Module panel */
.ll-module__panel {
    padding: 0 18px 18px;
    background: var(--uai-paper);
    border-top: 1px solid var(--uai-border);
}
.ll-module__outcome {
    padding: 14px 0 10px;
    margin: 0;
    color: var(--uai-muted);
    font-size: 13px;
    line-height: 1.6;
}
.ll-module__outcome strong { color: var(--uai-ink); }

/* Lesson list inside module */
.ll-lessons {
    margin: 0;
    padding: 0;
    list-style: none;
}
.ll-lessons li {
    display: grid;
    grid-template-columns: 28px minmax(0, 1fr) auto;
    align-items: center;
    gap: 12px;
    padding: 12px 0;
    border-top: 1px solid var(--uai-border);
    font-size: 13px;
}
.ll-lessons li:first-child { border-top: 0; }
.ll-lesson__icon {
    width: 28px;
    height: 28px;
    display: grid;
    place-items: center;
    background: var(--uai-brand-bg);
    color: var(--uai-brand);
    border-radius: var(--uai-radius);
    font-size: 14px;
    font-weight: 700;
}
.ll-lesson__text strong {
    display: block;
    color: var(--uai-ink);
    font-size: 13px;
    margin-bottom: 2px;
}
.ll-lesson__text span {
    display: block;
    color: var(--uai-muted);
    font-size: 12px;
    line-height: 1.4;
}
.ll-lesson__type {
    font-size: 11px;
    color: var(--uai-muted);
    white-space: nowrap;
}

/* ── Reviews ── */
.ll-reviews__summary {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 28px;
    align-items: center;
    padding: 24px 0;
    border-bottom: 1px solid var(--uai-border);
    margin-bottom: 20px;
}
.ll-reviews__score {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    padding-right: 28px;
    border-right: 1px solid var(--uai-border);
}
.ll-reviews__val {
    font-size: 48px;
    font-weight: 800;
    color: var(--uai-ink);
    line-height: 1;
}
.ll-reviews__stars {
    color: var(--uai-gold);
    font-size: 20px;
    letter-spacing: 2px;
}
.ll-reviews__count {
    font-size: 13px;
    color: var(--uai-muted);
}
.ll-reviews__bars { display: grid; gap: 6px; }
.ll-reviews__bar {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 13px;
    color: var(--uai-muted);
}
.ll-reviews__bar > span:first-child { width: 36px; flex: 0 0 auto; }
.ll-bar {
    flex: 1;
    height: 6px;
    background: var(--uai-border);
    border-radius: 3px;
    overflow: hidden;
}
.ll-bar div {
    height: 100%;
    background: var(--uai-accent);
    border-radius: 3px;
    transition: width .3s;
}
.ll-reviews__bar > span:last-child {
    width: 40px;
    flex: 0 0 auto;
    text-align: right;
    color: var(--uai-muted);
}
.ll-reviews__list { display: grid; gap: 18px; }
.ll-review {
    padding: 18px;
    border: 1px solid var(--uai-border);
    border-radius: var(--uai-radius);
    background: var(--uai-paper);
}
.ll-review__head {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 10px;
}
.ll-review__avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--uai-brand-bg);
    color: var(--uai-brand);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 14px;
}
.ll-review__head > div > strong {
    display: block;
    color: var(--uai-ink);
    font-size: 15px;
}
.ll-review__head > div > span {
    font-size: 12px;
    color: var(--uai-muted);
}
.ll-review__stars {
    margin-left: auto;
    color: var(--uai-gold);
    font-size: 14px;
}
.ll-review p { margin: 0; color: var(--uai-muted); font-size: 14px; line-height: 1.65; }

/* ── Sidebar ── */
.ll-sidebar {
    position: sticky;
    top: 100px;
    align-self: start;
    display: grid;
    gap: 18px;
}
.ll-card {
    padding: 22px;
    border: 1px solid var(--uai-border);
    background: var(--uai-surface);
    box-shadow: var(--uai-shadow-sm);
}
/* Enroll card override — darker surface for contrast */
.ll-card--enroll {
    background: var(--uai-ink);
    border-color: rgba(255,255,255,.12);
    color: #fff;
}
.ll-card--enroll h3 { color: #fff; }
.ll-card--enroll .ll-price { color: var(--uai-gold); }
.ll-card--enroll .ll-note { color: rgba(255,255,255,.6); }
.ll-card--enroll .ll-btn--primary {
    background: var(--uai-cta);
    color: #fff;
    box-shadow: 0 4px 16px rgba(234,88,12,.35);
}
.ll-card--enroll .ll-btn--ghost {
    background: transparent;
    color: #fff;
    border: 1px solid rgba(255,255,255,.25);
}
.ll-card--enroll .ll-btn--ghost:hover {
    background: rgba(255,255,255,.1);
    border-color: rgba(255,255,255,.4);
}
.ll-card--enroll .ll-includes li { color: rgba(255,255,255,.85); }
.ll-card--enroll .ll-includes span { color: var(--uai-accent); }
.ll-card h3 {
    margin: 0 0 16px;
    font-size: 18px;
    font-weight: 800;
    color: var(--uai-ink);
}
.ll-card__cta { display: grid; gap: 10px; margin-bottom: 12px; }
.ll-price {
    margin: 0 0 16px;
    font-size: 16px;
    font-weight: 800;
    color: var(--uai-ink);
}
.ll-progress { margin-bottom: 16px; }
.ll-progress__bar {
    height: 8px;
    background: var(--uai-border);
    border-radius: 999px;
    overflow: hidden;
    margin-bottom: 6px;
}
.ll-progress__bar > div {
    height: 100%;
    background: var(--uai-brand);
    border-radius: 999px;
}
.ll-progress span { font-size: 12px; color: var(--uai-muted); }
.ll-note {
    font-size: 12px;
    color: var(--uai-muted);
    margin: 0;
    line-height: 1.6;
}
.ll-includes {
    margin: 0;
    padding: 0;
    list-style: none;
}
.ll-includes li {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    padding: 8px 0;
    color: var(--uai-muted);
    font-size: 14px;
    line-height: 1.5;
    border-top: 1px solid var(--uai-border);
}
.ll-includes li:first-child { border-top: 0; }
.ll-instructor {
    display: grid;
    grid-template-columns: 40px 1fr;
    gap: 12px;
    align-items: center;
}
.ll-instructor__avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--uai-accent);
    color: #fff;
    display: grid;
    place-items: center;
    font-weight: 800;
    font-size: 16px;
}
.ll-instructor > div > strong { display: block; color: var(--uai-ink); font-size: 14px; }
.ll-instructor > div > span { font-size: 12px; color: var(--uai-muted); }
.ll-instructor__bio {
    margin: 12px 0 0;
    color: var(--uai-muted);
    font-size: 13px;
    line-height: 1.65;
}

/* ── Next Path (reuse uai vars) ── */
.uai-next-path {
    padding: 70px 0;
    background: linear-gradient(135deg, var(--uai-ink), var(--uai-accent));
    color: #fff;
    text-align: center;
}
.uai-lms-container { width: min(900px, calc(100% - 40px)); margin-inline: auto; }
.uai-lms-kicker {
    margin: 0 0 12px;
    color: var(--uai-gold);
    font-size: 11px;
    font-weight: 800;
    letter-spacing: .15em;
    text-transform: uppercase;
}
.uai-next-path h2 {
    margin: 0 0 12px;
    color: #fff;
    font-size: clamp(27px, 3.5vw, 42px);
    line-height: 1.15;
}
.uai-next-path p {
    max-width: 650px;
    margin: 0 auto;
    color: rgba(255,255,255,.8);
    line-height: 1.75;
}
.uai-next-path__actions {
    display: flex;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
    margin-top: 28px;
}
.uai-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    border: none;
    border-radius: var(--uai-radius);
    padding: 14px 32px;
    font-size: 15px;
    font-weight: 800;
    cursor: pointer;
    text-decoration: none;
    transition: all .2s;
    white-space: nowrap;
}
.uai-btn--primary {
    background: var(--uai-cta);
    color: #fff;
}
.uai-btn--primary:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(234,88,12,.4); }
.uai-btn--outline {
    background: transparent;
    color: #fff;
    border: 2px solid rgba(255,255,255,.5);
}
.uai-btn--outline:hover {
    background: rgba(255,255,255,.12);
    border-color: #fff;
    color: #fff;
}


/* ── Focus Visible ── */
.ll-btn:focus-visible,
.uai-btn:focus-visible,
.ll-module__head:focus-visible,
.ll-card a:focus-visible,
.ll-accordion__header:focus-visible,
a[href]:focus-visible {
    outline: 3px solid var(--uai-gold);
    outline-offset: 3px;
    box-shadow: 0 0 0 6px rgba(251,191,36,.2);
}

/* Touch targets - min 44px */
.ll-btn {
    min-height: 44px;
    padding-top: 14px;
    padding-bottom: 14px;
}
.uai-btn {
    min-height: 44px;
    padding-top: 14px;
    padding-bottom: 14px;
}
.ll-module__head {
    min-height: 48px;
    padding-top: 16px;
    padding-bottom: 16px;
}


/* ── Print Styles ── */
@media print {
    .ll-hero,
    .ll-preview,
    .ll-sidebar,
    .ll-btn,
    .uai-btn,
    .uai-next-path,
    .ll-hero__summary,
    .ll-rating,
    header,
    footer,
    .site-header,
    .site-footer {
        display: none !important;
    }
    .ll-layout {
        padding: 0;
    }
    .ll-main {
        width: 100%;
        max-width: none;
    }
    .ll-module__panel {
        display: block !important;
        hidden: false !important;
    }
    .ll-module__head::after {
        content: none;
    }
    body {
        font-size: 12pt;
        line-height: 1.5;
        color: #000;
        background: #fff;
    }
    .ll-accordion,
    .ll-module {
        break-inside: avoid;
        border: 1px solid #ddd;
        margin-bottom: 1rem;
    }
    .ll-objectives li {
        border-bottom: 1px solid #eee;
        padding: 0.5rem 0;
    }
}

/* ── Ecosystem Rail ── */
.content-hub-ecosystem {
    max-width: 1160px;
    margin: 0 auto;
    padding: 76px 28px 24px;
    background: var(--uai-surface);
}
.content-hub-ecosystem__head { text-align: center; margin-bottom: 24px; }
.content-hub-eyebrow {
    margin: 0 0 8px;
    color: var(--uai-accent);
    font-size: 11px;
    font-weight: 800;
    letter-spacing: .15em;
}
.content-hub-ecosystem h2 {
    margin: 0;
    color: var(--uai-ink);
    font-size: clamp(25px, 3vw, 36px);
    line-height: 1.2;
}
.content-hub-ecosystem__grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 15px;
}
.content-hub-ecosystem__card {
    display: flex;
    min-height: 160px;
    flex-direction: column;
    gap: 8px;
    padding: 20px;
    border: 1px solid var(--uai-border);
    border-radius: var(--uai-radius-lg);
    color: var(--uai-muted);
    background: var(--uai-paper);
    text-decoration: none;
    box-shadow: var(--uai-shadow-sm);
    transition: transform .2s, box-shadow .2s, border-color .2s;
}
.content-hub-ecosystem__card:hover {
    transform: translateY(-4px);
    border-color: var(--uai-accent);
    box-shadow: var(--uai-shadow-lg);
}
.content-hub-ecosystem__icon { font-size: 25px; line-height: 1; }
.content-hub-ecosystem__card strong { color: var(--uai-ink); font-size: 14px; }
.content-hub-ecosystem__card span:not(.content-hub-ecosystem__icon) { font-size: 12px; line-height: 1.55; }
.content-hub-ecosystem__card em {
    margin-top: auto;
    color: var(--uai-accent);
    font-size: 12px;
    font-style: normal;
    font-weight: 800;
}

/* ── Responsive ── */
@media (max-width: 900px) {
    .ll-hero__grid { grid-template-columns: 1fr; gap: 32px; }
    .ll-preview { max-width: 620px; }
    .ll-hero__summary { grid-template-columns: 1fr; }
    .ll-hero__summary > div { border-right: 0; border-bottom: 1px solid rgba(255,255,255,.15); padding: 18px 0; }
    .ll-hero__summary > div:last-child { border-bottom: 0; }
    .ll-layout__grid { grid-template-columns: 1fr; }
    .ll-sidebar { position: static; }
    .ll-objectives { columns: 1; }
    .ll-skills { grid-template-columns: 1fr; }
    .ll-module__head { grid-template-columns: 22px 50px minmax(0, 1fr) auto; }
    .ll-module__meta { display: none; }
    .content-hub-ecosystem__grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 600px) {
    .ll-hero__actions { flex-direction: column; }
    .ll-btn { width: 100%; }
    .ll-module__head { grid-template-columns: 20px minmax(0, 1fr) auto; padding-inline: 12px; }
    .ll-module__code { display: none; }
    .ll-reviews__summary { grid-template-columns: 1fr; gap: 18px; }
    .ll-reviews__score { padding: 0 0 18px; border-right: 0; border-bottom: 1px solid var(--uai-border); }
    .content-hub-ecosystem__grid { grid-template-columns: 1fr; }
}
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: .01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: .01ms !important;
        scroll-behavior: auto !important;
    }
}