/* =====================================================
   EDUCATIONAL HUB — Insight Theme
   ===================================================== */

.edu-hub {
    width: 100%;
}

/* ── Hero — compact ── */
.edu-hub__hero {
    padding: 32px 0 24px;
    border-bottom: 1px solid var(--border);
}

.edu-hub__hero-inner {
    max-width: 640px;
}

.edu-hub__eyebrow {
    display: inline-block;
    font-size: .6875rem;
    font-weight: 700;
    letter-spacing: .12em;
    text-transform: uppercase;
    color: var(--accent);
    background: rgba(77,163,255,.08);
    border: 1px solid rgba(77,163,255,.2);
    border-radius: 50px;
    padding: 3px 10px;
    margin-bottom: 10px;
}

.edu-hub__title {
    font-size: clamp(1.5rem, 3vw, 2rem);
    font-weight: 800;
    line-height: 1.15;
    color: var(--text);
    margin: 0 0 8px;
    letter-spacing: -.02em;
}

.edu-hub__subtitle {
    font-size: .9375rem;
    line-height: 1.6;
    color: var(--text-muted);
    margin: 0 0 16px;
    max-width: 520px;
}

.edu-hub__hero-meta {
    display: flex;
    align-items: center;
    gap: 16px;
}

.edu-hub__meta-item {
    display: flex;
    flex-direction: column;
    gap: 1px;
}

.edu-hub__meta-item strong {
    font-size: 1.25rem;
    font-weight: 800;
    color: var(--text);
    line-height: 1;
}

.edu-hub__meta-item span {
    font-size: .75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: .06em;
    font-weight: 500;
}

.edu-hub__meta-divider {
    width: 1px;
    height: 32px;
    background: var(--border);
}

/* ============================================================
   HERO — Split layout v2
   ============================================================ */

.edu-hub__hero--split {
    padding: 40px 0;
    background:
        radial-gradient(ellipse 600px 240px at 30% 0%, rgba(77,163,255,.06), transparent 70%),
        linear-gradient(transparent 95%, rgba(77,163,255,.04) 95%) 0 0/24px 24px,
        linear-gradient(90deg, transparent 95%, rgba(77,163,255,.04) 95%) 0 0/24px 24px;
    border-bottom: 1px solid var(--border);
    position: relative;
    overflow: hidden;
}

.edu-hub__hero-split {
    display: grid;
    grid-template-columns: 60% 40%;
    gap: 32px;
    align-items: center;
    max-height: 300px;
}

.edu-hub__hero-left {
    display: flex;
    flex-direction: column;
    gap: 10px;
    max-width: 480px;
}

.edu-hub__hero--split .edu-hub__title {
    font-size: clamp(1.5rem, 3.2vw, 2.25rem);
    font-weight: 800;
    line-height: 1.1;
    color: var(--text);
    margin: 0;
    letter-spacing: -.02em;
}

.edu-hub__hero--split .edu-hub__subtitle {
    font-size: .9375rem;
    line-height: 1.55;
    color: var(--text-muted);
    margin: 4px 0 0;
    max-width: 400px;
}

.edu-hub__hero-btns {
    display: flex;
    gap: 10px;
    margin-top: 10px;
    flex-wrap: wrap;
}

.edu-hub__btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 9px 18px;
    border-radius: 8px;
    font-size: .875rem;
    font-weight: 700;
    text-decoration: none;
    transition: all .15s;
    border: 1px solid transparent;
}
.edu-hub__btn--primary {
    background: var(--accent, #4DA3FF);
    color: #0a0e15;
}
.edu-hub__btn--primary:hover {
    background: var(--accent-hover, #6db8ff);
    color: #0a0e15;
    transform: translateY(-1px);
}
.edu-hub__btn--ghost {
    background: transparent;
    border-color: var(--border);
    color: var(--text-muted);
}
.edu-hub__btn--ghost:hover {
    border-color: var(--accent);
    color: var(--accent);
}

/* Right column */
.edu-hub__hero-right {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    justify-content: center;
    gap: 14px;
    position: relative;
}

.edu-hub__wave-svg {
    width: 100%;
    height: auto;
    max-height: 140px;
    display: block;
}

.edu-hub__wave-num {
    font-size: 11px;
    font-weight: 700;
    fill: rgba(77,163,255,.55);
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

/* Stroke draw animation */
.edu-hub__wave-path {
    stroke-dasharray: 600;
    stroke-dashoffset: 600;
    animation: edu-hub-wave-draw 2.2s ease-out .2s forwards;
}
.edu-hub__wave-path--corr {
    animation-delay: 2.4s;
    stroke-dasharray: 80;
    stroke-dashoffset: 80;
    animation-duration: 1.2s;
}
.edu-hub__wave-dot {
    opacity: 0;
    animation: edu-hub-dot-pulse 1.5s ease-in-out 2.2s infinite;
}

@keyframes edu-hub-wave-draw {
    to { stroke-dashoffset: 0; }
}
@keyframes edu-hub-dot-pulse {
    0%   { opacity: 0; transform: scale(1); transform-origin: 115px 14px; }
    50%  { opacity: 1; transform: scale(1.4); }
    100% { opacity: 0.6; transform: scale(1); }
}

/* Stat cards row */
.edu-hub__stat-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
}

.edu-hub__stat-card {
    background: var(--bg-alt);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 10px 12px;
    display: flex;
    flex-direction: column;
    gap: 2px;
    text-align: center;
    transition: border-color .15s, transform .15s;
}
.edu-hub__stat-card:hover {
    border-color: rgba(77,163,255,.3);
    transform: translateY(-2px);
}
.edu-hub__stat-card strong {
    font-size: 1.125rem;
    font-weight: 800;
    color: var(--text);
    line-height: 1.1;
}
.edu-hub__stat-card span {
    font-size: .65rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .06em;
    color: var(--text-muted);
}
.edu-hub__stat-card--accent strong {
    color: var(--accent, #4DA3FF);
}

/* Responsive */
@media (max-width: 840px) {
    .edu-hub__hero-split {
        grid-template-columns: 1fr;
        max-height: none;
        gap: 18px;
    }
    .edu-hub__hero--split { padding: 28px 0 24px; }
    .edu-hub__hero-right { order: 2; }
    .edu-hub__wave-svg { max-height: 100px; }
}
@media (max-width: 480px) {
    .edu-hub__stat-cards { grid-template-columns: 1fr 1fr 1fr; }
    .edu-hub__hero-btns .edu-hub__btn { flex: 1; justify-content: center; }
}

/* ── Module Nav ── */
.edu-hub__module-nav {
    background: var(--bg-alt);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 10;
}

.edu-hub__module-nav-inner {
    display: flex;
    gap: 0;
    overflow-x: auto;
    scrollbar-width: none;
}

.edu-hub__module-nav-inner::-webkit-scrollbar {
    display: none;
}

.edu-hub__module-nav-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 14px 24px;
    text-decoration: none;
    border-right: 1px solid var(--border);
    color: var(--text-muted);
    font-size: .875rem;
    transition: color .15s, background .15s;
    white-space: nowrap;
}

.edu-hub__module-nav-item:hover {
    color: var(--text);
    background: rgba(255,255,255,.03);
}

.edu-hub__module-nav-num {
    font-size: .75rem;
    font-weight: 800;
    color: var(--accent);
    font-variant-numeric: tabular-nums;
}

.edu-hub__module-nav-label {
    font-weight: 500;
}

/* ── Modules wrapper ── */
.edu-hub__modules {
    padding: 0 0 48px;
}

/* ── Module ── */
.edu-hub__module {
    padding: 56px 0 0;
}

.edu-hub__module-header {
    display: grid;
    grid-template-columns: 80px 1fr;
    gap: 0 24px;
    align-items: start;
    margin-bottom: 32px;
}

.edu-hub__module-number {
    font-size: 4rem;
    font-weight: 900;
    line-height: 1;
    color: rgba(77,163,255,.12);
    letter-spacing: -.04em;
    font-variant-numeric: tabular-nums;
    padding-top: 4px;
}

.edu-hub__module-label {
    display: inline-block;
    font-size: .6875rem;
    font-weight: 700;
    letter-spacing: .12em;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 8px;
}

.edu-hub__module-title {
    font-size: 1.75rem;
    font-weight: 800;
    color: var(--text);
    margin: 0 0 8px;
    letter-spacing: -.02em;
}

.edu-hub__module-desc {
    font-size: .9375rem;
    color: var(--text-muted);
    line-height: 1.65;
    margin: 0;
    max-width: 560px;
}

/* ── Guide card grids ── */
.edu-hub__guides {
    display: grid;
    gap: 16px;
}

.edu-hub__guides--single {
    grid-template-columns: 1fr;
    max-width: 480px;
}

.edu-hub__guides--two {
    grid-template-columns: repeat(2, 1fr);
}

.edu-hub__guides--three {
    grid-template-columns: repeat(3, 1fr);
}

/* ── Guide card ── */
.edu-hub__guide-card {
    display: flex;
    flex-direction: column;
    gap: 10px;
    padding: 22px;
    background: var(--bg-alt);
    border: 1px solid var(--border);
    border-radius: 10px;
    text-decoration: none;
    transition: border-color .2s, transform .2s, box-shadow .2s;
}

.edu-hub__guide-card:hover {
    border-color: rgba(77,163,255,.35);
    transform: translateY(-2px);
    box-shadow: 0 8px 28px rgba(0,0,0,.25);
}

.edu-hub__guide-card--featured {
    border-color: rgba(77,163,255,.25);
    background: linear-gradient(135deg, rgba(77,163,255,.07) 0%, var(--bg-alt) 60%);
}

.edu-hub__guide-card-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
}

.edu-hub__guide-tag {
    font-size: .6875rem;
    font-weight: 700;
    letter-spacing: .06em;
    text-transform: uppercase;
    padding: 3px 8px;
    border-radius: 4px;
}

.edu-hub__guide-tag--accent {
    color: var(--accent);
    background: rgba(77,163,255,.1);
    border: 1px solid rgba(77,163,255,.2);
}

.edu-hub__guide-tag--muted {
    color: var(--text-muted);
    background: rgba(255,255,255,.04);
    border: 1px solid var(--border);
}

.edu-hub__guide-tag--warning {
    color: var(--warning, #f5a623);
    background: rgba(245,166,35,.08);
    border: 1px solid rgba(245,166,35,.2);
}

.edu-hub__guide-badge {
    font-size: .6rem;
    font-weight: 700;
    letter-spacing: .1em;
    text-transform: uppercase;
    color: #0a0f1a;
    background: var(--accent);
    border-radius: 50px;
    padding: 3px 8px;
}

.edu-hub__guide-title {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text);
    margin: 0;
    line-height: 1.3;
}

.edu-hub__guide-desc {
    font-size: .875rem;
    color: var(--text-muted);
    line-height: 1.65;
    margin: 0;
    flex: 1;
}

.edu-hub__guide-cta {
    font-size: .8125rem;
    font-weight: 600;
    color: var(--accent);
    margin-top: auto;
    padding-top: 8px;
}

/* ── Module divider ── */
.edu-hub__module-divider {
    border: none;
    border-top: 1px solid var(--border);
    margin-top: 56px;
}

/* ── Bottom CTA ── */
.edu-hub__cta {
    border-top: 1px solid var(--border);
    padding: 48px 0;
    background: rgba(77,163,255,.03);
}

.edu-hub__cta-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-8);
}

.edu-hub__cta-body h2 {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--text);
    margin: 0 0 8px;
}

.edu-hub__cta-body p {
    font-size: .9375rem;
    color: var(--text-muted);
    margin: 0;
}

.edu-hub__cta-actions {
    display: flex;
    gap: 12px;
    flex-shrink: 0;
}

/* ── Responsive ── */
@media (max-width: 900px) {
    .edu-hub__guides--three {
        grid-template-columns: repeat(2, 1fr);
    }

    .edu-hub__module-header {
        grid-template-columns: 56px 1fr;
    }

    .edu-hub__module-number {
        font-size: 3rem;
    }
}

@media (max-width: 700px) {
    .edu-hub__hero { padding: 24px 0 18px; }

    .edu-hub__module-header {
        grid-template-columns: 1fr;
    }

    .edu-hub__module-number {
        display: none;
    }

    .edu-hub__guides--two,
    .edu-hub__guides--three {
        grid-template-columns: 1fr;
    }

    .edu-hub__cta-inner {
        flex-direction: column;
        align-items: flex-start;
    }

    .edu-hub__module-nav-item {
        padding: 12px 16px;
    }
}