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a[data-astro-cid-emqknrql]{color:#f6d17f;font-weight:700}@media(max-width:820px){.layout-with-sidebar[data-astro-cid-emqknrql]{grid-template-columns:1fr;gap:0;padding-top:0}.sidebar[data-astro-cid-emqknrql]{position:static;max-height:none;overflow:visible;padding:1rem 0;border-right:none;border-bottom:1px solid var(--line)}.article-body[data-astro-cid-emqknrql]{padding-top:1.5rem}}@media(max-width:390px){.article-labels[data-astro-cid-emqknrql]{flex-wrap:wrap}h1[data-astro-cid-emqknrql]{font-size:1.8rem}}.lesson-nav[data-astro-cid-emqknrql]{margin-top:3rem;padding-top:2rem;border-top:1px solid var(--line)}.lesson-nav-inner[data-astro-cid-emqknrql]{display:grid;grid-template-columns:1fr 1fr;gap:1rem}.lesson-nav-btn[data-astro-cid-emqknrql]{display:flex;flex-direction:column;gap:.25rem;padding:1rem 1.25rem;border:1px solid var(--line);border-radius:var(--radius);text-decoration:none;color:inherit;transition:border-color .15s,background 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