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summary::-webkit-details-marker{display:none}.tr-check{width:16px;height:16px;accent-color:var(--teal);cursor:pointer;flex-shrink:0}.tr-lesson-title{color:var(--text);flex:1;font-size:14px;font-weight:600}.tr-lesson.is-done .tr-lesson-title{color:var(--text2);text-decoration:line-through #ffffff40}.tr-goal-chip{font-family:var(--font-mono);color:var(--text2);border:1px solid var(--border);white-space:nowrap;border-radius:6px;padding:2px 7px;font-size:10px}.tr-min{font-family:var(--font-mono);color:var(--text3);white-space:nowrap;font-size:10px}.tr-lesson-body{padding:0 18px 18px 44px}.tr-lesson-body p{color:var(--text2);max-width:720px;margin:0 0 10px;font-size:14px;line-height:1.65}.tr-mini-label{font-family:var(--font-mono);text-transform:uppercase;letter-spacing:.1em;color:var(--text3);margin-bottom:4px;font-size:10px;display:block}.tr-example{border-radius:var(--radius-sm);color:var(--text-soft);background:#ffffff0a;max-width:720px;margin:12px 0;padding:12px 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