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ul{margin:0;padding-left:20px;display:grid;gap:3px}.lesson-item.with-thumb{grid-template-columns:72px minmax(0,1fr);align-items:center;gap:12px}.lesson-thumb{width:72px;height:54px;object-fit:cover;border-radius:8px;border:1px solid var(--line);background:#fff}.lesson-item-text{display:grid;gap:2px;min-width:0}.md blockquote.callout{display:grid;gap:2px;border-left-width:4px}.md .callout-label{font-weight:700;font-size:12.5px;letter-spacing:.02em;text-transform:uppercase}.md blockquote.tip{border-left-color:var(--good);background:var(--good-soft)}.md blockquote.remember{border-left-color:var(--brand);background:var(--brand-soft)}.md blockquote.exam{border-left-color:var(--saffron);background:var(--saffron-soft)}.md blockquote.example{border-left-color:var(--muted);background:var(--code-bg)}.md blockquote.warn{border-left-color:var(--bad);background:var(--bad-soft)}.md .fig img{background:#fff;padding:6px}.upload-row{display:flex;gap:8px;align-items:center;flex-wrap:wrap}