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button:disabled{opacity:.3;cursor:default}.structure__add{width:100%;font-family:var(--font-mono);letter-spacing:.1em;text-transform:uppercase;text-align:left;color:var(--ink-40);border:1px dashed var(--ink-20);border-radius:var(--radius-sm);cursor:pointer;background:0 0;margin-top:8px;padding:6px 10px;font-size:10px;font-weight:600;display:block}.structure__add:hover{color:var(--ink);border-color:var(--ink-40);background:var(--ink-05)}.structure__add--path{border-radius:var(--radius-lg);margin-bottom:60px;padding:14px 18px}.is-dragging{opacity:.35}.structure__path.is-drop-before,.structure__module.is-drop-before,.structure__unit.is-drop-before,.structure__lesson.is-drop-before{box-shadow:0 -3px 0 0 var(--accent)}.structure__path.is-drop-after{box-shadow:0 3px 0 0 var(--accent)}.structure__path.is-drop-into,.structure__module.is-drop-into,.structure__unit.is-drop-into{outline:2px solid var(--accent);outline-offset:2px}@property --tw-rotate-x{syntax:"*";inherits:false}@property 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