/* Lesson page styles, shared by every lesson (was inlined in each page). */
/* PAGE LAYOUT */
    .content-page {
        background: var(--bg-light);
        min-height: 100vh;
        padding: 40px 0 80px;
    }

    /* Grid children may shrink below their content's min width; without this
       the long-titled sidebars of the later tracks pushed the page wider than
       a phone screen. */
    .content-layout > * { min-width: 0; }

    .content-layout {
        max-width: 1160px;
        margin: 0 auto;
        padding: 0 24px;
        display: grid;
        grid-template-columns: 1fr 300px;
        gap: 40px;
        align-items: start;
    }

    /* BREADCRUMB */
    .breadcrumb {
        display: flex;
        align-items: center;
        gap: 8px;
        font-size: 13px;
        color: var(--text-muted);
        margin-bottom: 28px;
    }
    .breadcrumb a {
        color: var(--primary-green);
        text-decoration: none;
        font-weight: 500;
    }
    .breadcrumb a:hover { text-decoration: underline; }

    /* ARTICLE */
    .article-card {
        background: var(--white);
        border: 1px solid #e2e8f0;
        border-radius: 20px;
        overflow: hidden;
    }

    .article-meta {
        padding: 32px 36px 0;
    }

    .article-week-badge {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        background: rgba(16,185,129,0.08);
        color: #059669;
        font-size: 11px;
        font-weight: 700;
        letter-spacing: 1px;
        padding: 5px 14px;
        border-radius: 20px;
        margin-bottom: 20px;
        border: 1px solid rgba(16,185,129,0.15);
    }

    .article-title {
        font-size: 30px;
        font-weight: 800;
        color: var(--text-dark);
        line-height: 1.25;
        letter-spacing: -0.5px;
        margin-bottom: 20px;
    }

    .article-author {
        display: flex;
        align-items: center;
        gap: 12px;
        padding-bottom: 24px;
        border-bottom: 1px solid #f1f5f9;
        margin-bottom: 0;
    }

    .author-avatar-sm {
        width: 40px;
        height: 40px;
        border-radius: 50%;
        background: linear-gradient(135deg, #10b981, #059669);
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 14px;
        font-weight: 700;
        color: #fff;
        flex-shrink: 0;
    }

    .author-details strong {
        display: block;
        font-size: 14px;
        font-weight: 700;
        color: var(--text-dark);
    }

    .author-details span {
        font-size: 12px;
        color: var(--text-muted);
    }





    /* ARTICLE CONTENT */
    .article-body {
        padding: 36px 36px 0;
    }

    .article-body p {
        font-size: 16px;
        color: #334155;
        line-height: 1.85;
        margin-bottom: 20px;
    }

    .article-body h2 {
        font-size: 20px;
        font-weight: 700;
        color: var(--text-dark);
        margin: 32px 0 16px;
        letter-spacing: -0.3px;
    }

    .article-body strong { color: var(--text-dark); }

    .article-body ul {
        margin: 0 0 20px 20px;
    }

    .article-body ul li {
        font-size: 16px;
        color: #334155;
        line-height: 1.7;
        margin-bottom: 8px;
    }

    /* PAYWALL BLUR */
    .content-preview {
        position: relative;
    }

    .content-blur {
        position: relative;
        overflow: hidden;
    }

    .content-blur::after {
        content: '';
        position: absolute;
        bottom: 0; left: 0; right: 0;
        height: 180px;
        background: linear-gradient(to bottom, rgba(255,255,255,0) 0%, rgba(255,255,255,0.95) 60%, #fff 100%);
        pointer-events: none;
    }

    .content-locked {
        display: block;
    }

    /* PAYWALL CTA */
    .paywall-cta {
        padding: 32px 36px 36px;
        text-align: center;
        border-top: 1px solid #f1f5f9;
        margin-top: 0;
    }

    .paywall-cta h3 {
        font-size: 20px;
        font-weight: 700;
        color: var(--text-dark);
        margin-bottom: 8px;
    }

    .paywall-cta p {
        font-size: 14px;
        color: var(--text-muted);
        margin-bottom: 24px;
        line-height: 1.6;
    }

    .btn-google-signin {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        gap: 12px;
        width: 100%;
        max-width: 340px;
        padding: 14px 20px;
        border: 1.5px solid #e2e8f0;
        border-radius: 10px;
        font-size: 15px;
        font-weight: 600;
        color: #1e293b;
        background: #fff;
        cursor: pointer;
        transition: all 0.2s;
        font-family: inherit;
    }

    .btn-google-signin:hover {
        border-color: #cbd5e1;
        box-shadow: 0 2px 12px rgba(0,0,0,0.1);
    }

    .paywall-note {
        font-size: 12px;
        color: #94a3b8;
        margin-top: 12px;
    }

    /* ARTICLE FOOTER (visible after login) */
    .article-footer {
        display: none;
        padding: 28px 36px 36px;
        border-top: 1px solid #f1f5f9;
        margin-top: 8px;
    }

    .article-tags {
        display: flex;
        gap: 8px;
        flex-wrap: wrap;
    }

    .article-tag {
        font-size: 13px;
        color: #10b981;
        background: rgba(16,185,129,0.08);
        padding: 4px 14px;
        border-radius: 20px;
        font-weight: 500;
    }

    /* SIDEBAR */
    .content-sidebar {
        position: sticky;
        top: 24px;
    }

    .sidebar-card {
        background: var(--white);
        border: 1px solid #e2e8f0;
        border-radius: 16px;
        overflow: hidden;
        margin-bottom: 16px;
    }

    .sidebar-card-header {
        padding: 16px 20px;
        border-bottom: 1px solid #f1f5f9;
    }

    .sidebar-card-header h4 {
        font-size: 11px;
        font-weight: 700;
        color: var(--text-muted);
        text-transform: uppercase;
        letter-spacing: 1px;
        margin: 0;
    }

    .sidebar-series-item {
        display: flex;
        align-items: center;
        gap: 12px;
        padding: 14px 20px;
        border-bottom: 1px solid #f8fafc;
        cursor: pointer;
        text-decoration: none;
        transition: background 0.15s;
    }

    .sidebar-series-item:hover { background: #f8fafc; }

    .sidebar-series-item.active {
        background: rgba(16,185,129,0.04);
        border-left: 3px solid #10b981;
    }

    .sidebar-series-item.upcoming {
        opacity: 0.45;
        cursor: default;
        pointer-events: none;
    }

    .sidebar-topic {
        font-size: 10px;
        font-weight: 700;
        color: #10b981;
        text-transform: uppercase;
        letter-spacing: 0.05em;
        min-width: 44px;
        flex-shrink: 0;
    }

    .sidebar-series-item.upcoming .sidebar-topic { color: #94a3b8; }

    .sidebar-item-title {
        font-size: 13px;
        font-weight: 500;
        color: var(--text-dark);
        line-height: 1.4;
        flex: 1;
    }

    .sidebar-series-item.active .sidebar-item-title {
        font-weight: 700;
        color: #059669;
    }

    /* AUTHOR CARD */
    .author-sidebar-card {
        background: var(--white);
        border: 1px solid #e2e8f0;
        border-radius: 16px;
        padding: 20px;
    }

    .author-sidebar-top {
        display: flex;
        align-items: center;
        gap: 12px;
        margin-bottom: 14px;
    }

    .author-sidebar-avatar {
        width: 48px;
        height: 48px;
        border-radius: 50%;
        background: linear-gradient(135deg, #10b981, #059669);
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 16px;
        font-weight: 700;
        color: #fff;
        flex-shrink: 0;
    }

    .author-sidebar-name {
        font-size: 14px;
        font-weight: 700;
        color: var(--text-dark);
        display: block;
    }

    .author-sidebar-title {
        font-size: 12px;
        color: var(--text-muted);
        display: block;
        margin-top: 2px;
    }

    .author-sidebar-bio {
        font-size: 13px;
        color: #64748b;
        line-height: 1.6;
        margin-bottom: 16px;
    }

    .btn-linkedin {
        display: flex;
        align-items: center;
        justify-content: center;
        gap: 8px;
        width: 100%;
        padding: 10px;
        border-radius: 8px;
        border: 1px solid #0a66c2;
        color: #0a66c2;
        font-size: 13px;
        font-weight: 600;
        text-decoration: none;
    }

    /* MODAL */
    .modal-overlay {
        position: fixed;
        inset: 0;
        background: rgba(0,0,0,0.5);
        display: flex;
        align-items: center;
        justify-content: center;
        z-index: 1000;
        opacity: 0;
        pointer-events: none;
        transition: opacity 0.2s;
    }
    .modal-overlay.active { opacity: 1; pointer-events: all; }
    .modal-box {
        background: #fff;
        border-radius: 16px;
        padding: 40px;
        max-width: 420px;
        width: 90%;
        position: relative;
        text-align: center;
    }
    .close-modal {
        position: absolute;
        top: 16px; right: 16px;
        background: none;
        border: none;
        font-size: 22px;
        color: #94a3b8;
        cursor: pointer;
    }
    .modal-icon-wrapper {
        width: 56px; height: 56px;
        background: #ecfdf5;
        border-radius: 50%;
        display: flex;
        align-items: center;
        justify-content: center;
        margin: 0 auto 20px;
        font-size: 24px;
        color: #10b981;
    }
    .modal-box h4 {
        font-size: 20px;
        font-weight: 700;
        color: #0f172a;
        margin: 0 0 10px;
    }
    .modal-box p {
        font-size: 14px;
        color: #64748b;
        line-height: 1.6;
        margin: 0 0 20px;
    }
    .modal-note {
        font-size: 12px;
        color: #94a3b8;
        margin-top: 12px;
    }

    /* NEXT ARTICLE NAV */
    .next-article {
        margin-top: 8px;
        border-top: 1px solid #f1f5f9;
        padding: 28px 36px 36px;
    }

    .next-article-label {
        display: block;
        width: 100%;
        font-size: 11px;
        font-weight: 700;
        color: var(--text-muted);
        text-transform: uppercase;
        letter-spacing: 1px;
        margin-bottom: 14px;
    }

    .next-article-link {
        display: flex;
        align-items: center;
        gap: 16px;
        text-decoration: none;
        padding: 16px 20px;
        border: 1px solid #e2e8f0;
        border-radius: 12px;
        transition: all 0.2s;
    }

    .next-article-link:hover {
        border-color: #10b981;
        background: rgba(16,185,129,0.02);
    }

    .next-week-tag {
        font-size: 11px;
        font-weight: 700;
        color: #10b981;
        text-transform: uppercase;
        letter-spacing: 0.05em;
        display: block;
        margin-bottom: 6px;
    }

    .next-article-link h4 {
        font-size: 14px;
        font-weight: 600;
        color: var(--text-dark);
        line-height: 1.4;
        margin: 0;
        flex: 1;
    }

    .next-article-link i {
        font-size: 22px;
        color: #10b981;
        flex-shrink: 0;
    }

    /* MOBILE */
    @media (max-width: 1024px) {
        .content-layout { grid-template-columns: minmax(0, 1fr); }
        .content-sidebar { position: static; }
    }

    @media (max-width: 768px) {
        .content-page { padding: 24px 0 60px; }
        .content-layout { padding: 0 16px; gap: 24px; }
        .breadcrumb { font-size: 12px; margin-bottom: 16px; }
        .article-card { border-radius: 14px; }
        .article-meta { padding: 20px 18px 0; }
        .article-week-badge { font-size: 10px; padding: 4px 10px; margin-bottom: 14px; }
        .article-title { font-size: 20px; margin-bottom: 14px; }
        .article-author { flex-wrap: wrap; gap: 8px; padding-bottom: 16px; }
        .author-details strong { font-size: 13px; }
        .author-details span { font-size: 11px; }
        .article-body { padding: 18px 18px 0; }
        .article-body p { font-size: 14px; line-height: 1.75; }
        .article-body h2 { font-size: 17px; margin: 24px 0 12px; }
        .article-body ul li { font-size: 14px; }
        .paywall-cta { padding: 20px 18px 24px; }
        .paywall-cta h3 { font-size: 17px; }
        .paywall-cta p { font-size: 13px; }
        .btn-google-signin { font-size: 14px; padding: 12px 16px; }
        .article-footer { padding: 16px 18px; }
        .next-article { padding: 16px 18px 20px; }
        .next-article-link h4 { font-size: 13px; }
        .sidebar-card-header { padding: 14px 16px; }
        .sidebar-series-item { padding: 12px 16px; }
        .sidebar-item-title { font-size: 12px; }
        .author-sidebar-card { padding: 16px; }
        .author-sidebar-bio { font-size: 12px; }
        .btn-nav-social { display: none !important; }
    }

    @media (max-width: 480px) {
        .article-title { font-size: 18px; }
        .article-body p { font-size: 14px; }
    }
        figure svg { width: 100%; height: auto; display: block; }
    @media (max-width: 768px) { figure { padding: 14px !important; } }
.logo-mark{vertical-align:middle;display:inline-block;}