.lesson-article[data-astro-cid-ni75xl3e]{padding-bottom:clamp(3rem,6vw,5rem)}.lesson-hero[data-astro-cid-ni75xl3e]{background:#fbfaf6;border-bottom:1px solid #e2dccf;padding:clamp(2rem,4vw,3.5rem) 0}.lesson-hero[data-astro-cid-ni75xl3e] h1[data-astro-cid-ni75xl3e]{color:var(--ink);text-transform:none;max-width:850px;margin:.5rem 0 1rem;font-size:clamp(2rem,4vw,3.2rem);line-height:1.15}.lesson-hero-lead[data-astro-cid-ni75xl3e]{color:var(--muted);max-width:800px;margin:0 0 1.5rem;font-size:1.15rem;line-height:1.5}.lesson-meta-bar[data-astro-cid-ni75xl3e]{color:var(--ink);border-top:1px solid #ece7de;flex-wrap:wrap;gap:1.5rem;padding-top:1rem;font-size:.95rem;display:flex}.lesson-meta-bar[data-astro-cid-ni75xl3e] span[data-astro-cid-ni75xl3e] strong[data-astro-cid-ni75xl3e]{color:var(--gold-dark)}.lesson-content-grid[data-astro-cid-ni75xl3e]{grid-template-columns:minmax(0,1fr) 360px;align-items:start;gap:clamp(2rem,4vw,3.5rem);margin-top:clamp(2rem,4vw,3rem);display:grid}.video-embed-wrapper[data-astro-cid-ni75xl3e]{background:#000;border-radius:16px;width:100%;margin-bottom:2.5rem;padding-bottom:56.25%;position:relative;overflow:hidden;box-shadow:0 12px 36px #001f211f}.video-embed-wrapper[data-astro-cid-ni75xl3e] iframe[data-astro-cid-ni75xl3e]{border:none;width:100%;height:100%;position:absolute;top:0;left:0}.lesson-section[data-astro-cid-ni75xl3e]{margin-bottom:2.5rem}.lesson-section[data-astro-cid-ni75xl3e] h2[data-astro-cid-ni75xl3e]{color:var(--ink);text-transform:none;margin-bottom:1rem;font-size:1.6rem}.lesson-summary-box[data-astro-cid-ni75xl3e]{background:#fbfaf6;border:1px solid #e2dccf;border-radius:14px;padding:1.5rem}.lesson-summary-box[data-astro-cid-ni75xl3e] p[data-astro-cid-ni75xl3e]{color:#333;margin:0;font-size:1.05rem;line-height:1.6}.lesson-keypoints[data-astro-cid-ni75xl3e]{gap:.85rem;margin:0;padding:0;list-style:none;display:grid}.lesson-keypoints[data-astro-cid-ni75xl3e] li[data-astro-cid-ni75xl3e]{background:#fff;border:1px solid #e2dccf;border-radius:12px;align-items:flex-start;gap:.85rem;padding:.9rem 1.1rem;display:flex}.point-icon[data-astro-cid-ni75xl3e]{color:#fff;background:#2e7d32;border-radius:50%;flex-shrink:0;place-items:center;width:24px;height:24px;margin-top:2px;font-size:.85rem;font-weight:700;display:grid}.point-text[data-astro-cid-ni75xl3e]{color:var(--ink);font-size:1rem;line-height:1.5}.lesson-tips-box[data-astro-cid-ni75xl3e]{background:#f8fcf9;border:1px solid #c8e6c9;border-radius:14px;padding:1.75rem}.lesson-tips-box[data-astro-cid-ni75xl3e] h2[data-astro-cid-ni75xl3e]{color:#1b5e20}.exam-tips-list[data-astro-cid-ni75xl3e]{gap:1rem;display:grid}.tip-card[data-astro-cid-ni75xl3e]{background:#fff;border:1px solid #dcedc8;border-radius:10px;padding:1rem 1.25rem}.tip-badge[data-astro-cid-ni75xl3e]{color:#fff;text-transform:uppercase;background:#2e7d32;border-radius:4px;margin-bottom:.5rem;padding:.2rem .6rem;font-size:.75rem;font-weight:700;display:inline-block}.tip-card[data-astro-cid-ni75xl3e] p[data-astro-cid-ni75xl3e]{color:#2b3b2b;margin:0;font-size:.98rem;line-height:1.5}.sidebar-sticky[data-astro-cid-ni75xl3e]{gap:1.5rem;display:grid;position:sticky;top:2rem}.sidebar-card[data-astro-cid-ni75xl3e]{background:#fff;border:1px solid #e2dccf;border-radius:16px;padding:1.5rem;box-shadow:0 4px 16px #001f210a}.sidebar-card[data-astro-cid-ni75xl3e].highlight-card{color:#fff;background:#002224;border-color:#002224}.sidebar-card[data-astro-cid-ni75xl3e].highlight-card h3[data-astro-cid-ni75xl3e]{color:#fff;margin:.5rem 0;font-size:1.3rem}.sidebar-card[data-astro-cid-ni75xl3e].highlight-card p[data-astro-cid-ni75xl3e]{color:#b0bec5;margin-bottom:1.25rem;font-size:.92rem;line-height:1.45}.sidebar-card[data-astro-cid-ni75xl3e].highlight-card .card-eyebrow[data-astro-cid-ni75xl3e]{color:var(--gold)}.card-eyebrow[data-astro-cid-ni75xl3e]{text-transform:uppercase;letter-spacing:.05em;color:var(--gold-dark);font-size:.78rem;font-weight:800}.sidebar-card[data-astro-cid-ni75xl3e] h3[data-astro-cid-ni75xl3e]{color:var(--ink);text-transform:none;margin:.5rem 0 .75rem;font-size:1.25rem}.sidebar-card[data-astro-cid-ni75xl3e] p[data-astro-cid-ni75xl3e]{color:var(--muted);margin:0 0 1rem;font-size:.92rem;line-height:1.45}.sidebar-link[data-astro-cid-ni75xl3e]{color:var(--gold-dark);font-size:.95rem;font-weight:800;text-decoration:none}.sidebar-link[data-astro-cid-ni75xl3e]:hover{text-decoration:underline}@media (width<=960px){.lesson-content-grid[data-astro-cid-ni75xl3e]{grid-template-columns:1fr}.sidebar-sticky[data-astro-cid-ni75xl3e]{position:static}}