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var(--transition-fast)}._unlockBtn_lhd93_196:hover{background:var(--color-primary);color:#fff}._unlockBtn_lhd93_196:focus-visible{outline:var(--focus-ring-width) solid var(--focus-ring-color);outline-offset:var(--focus-ring-offset)}._select_lhd93_220{padding:var(--space-2) var(--space-3);border:1px solid var(--color-border);border-radius:var(--radius-md);background:var(--color-surface);color:var(--color-text);font-size:var(--font-size-sm);min-height:var(--tap-target-min);cursor:pointer}._select_lhd93_220:focus-visible{outline:var(--focus-ring-width) solid var(--focus-ring-color);outline-offset:var(--focus-ring-offset)}._actionBtn_lhd93_237{padding:var(--space-2) var(--space-4);border:1px solid var(--color-primary);border-radius:var(--radius-md);background:var(--color-primary);color:#fff;font-size:var(--font-size-xs);font-weight:var(--font-weight-medium);cursor:pointer;min-height:var(--tap-target-min);transition:opacity var(--transition-fast)}._actionBtn_lhd93_237:hover{opacity:.9}._actionBtn_lhd93_237:focus-visible{outline:var(--focus-ring-width) solid var(--focus-ring-color);outline-offset:var(--focus-ring-offset)}._dangerBtn_lhd93_259{padding:var(--space-2) var(--space-4);border:1px solid var(--color-error);border-radius:var(--radius-md);color:var(--color-error);font-size:var(--font-size-xs);font-weight:var(--font-weight-medium);cursor:pointer;min-height:var(--tap-target-min);transition:all var(--transition-fast);background:0 0}._dangerBtn_lhd93_259:hover{background:var(--color-error);color:#fff}._dangerBtn_lhd93_259:focus-visible{outline:var(--focus-ring-width) solid var(--focus-ring-color);outline-offset:var(--focus-ring-offset)}._collapsibleHeader_lhd93_283{cursor:pointer;width:100%;min-height:var(--tap-target-min);background:0 0;border:none;justify-content:space-between;align-items:center;padding:0;display:flex}._collapsibleHeader_lhd93_283:focus-visible{outline:var(--focus-ring-width) solid var(--focus-ring-color);outline-offset:var(--focus-ring-offset);border-radius:var(--radius-sm)}._chevron_lhd93_301{font-size:var(--font-size-xs);color:var(--color-text-muted)}._gateContainer_lhd93_307{align-items:center;gap:var(--space-3);padding:var(--space-5);text-align:center;flex-direction:column;display:flex}._gateTitle_lhd93_316{font-family:var(--font-heading);font-size:var(--font-size-lg);font-weight:var(--font-weight-bold);color:var(--color-text-heading);margin:0}._gateDescription_lhd93_324{font-size:var(--font-size-sm);color:var(--color-text-muted);margin:0}._mathProblem_lhd93_330{font-family:var(--font-mono);font-size:var(--font-size-xl);font-weight:var(--font-weight-bold);color:var(--color-primary);margin:var(--space-2) 0}._gateForm_lhd93_338{gap:var(--space-3);flex-direction:column;width:100%;max-width:240px;display:flex}._gateInput_lhd93_346{padding:var(--space-3);border:1px solid var(--color-border);border-radius:var(--radius-md);font-size:var(--font-size-base);text-align:center;background:var(--color-surface);color:var(--color-text);min-height:var(--tap-target-min)}._gateInput_lhd93_346:focus-visible{outline:var(--focus-ring-width) solid var(--focus-ring-color);outline-offset:var(--focus-ring-offset)}._gateSubmit_lhd93_362{padding:var(--space-3);border-radius:var(--radius-md);background:var(--color-primary);color:#fff;font-size:var(--font-size-sm);font-weight:var(--font-weight-medium);cursor:pointer;min-height:var(--tap-target-min);transition:opacity var(--transition-fast);border:none}._gateSubmit_lhd93_362:hover{opacity:.9}._gateSubmit_lhd93_362:disabled{opacity:.5;cursor:not-allowed}._gateSubmit_lhd93_362:focus-visible{outline:var(--focus-ring-width) solid var(--focus-ring-color);outline-offset:var(--focus-ring-offset)}._gateError_lhd93_389{font-size:var(--font-size-xs);color:var(--color-error);margin:0}._gateCancelBtn_lhd93_395{color:var(--color-text-muted);font-size:var(--font-size-xs);cursor:pointer;padding:var(--space-2);min-height:var(--tap-target-min);min-width:var(--tap-target-min);background:0 0;border:none}._gateCancelBtn_lhd93_395:focus-visible{outline:var(--focus-ring-width) solid var(--focus-ring-color);outline-offset:var(--focus-ring-offset)}._gateLinkBtn_lhd93_411{color:var(--color-primary);font-size:var(--font-size-xs);cursor:pointer;padding:var(--space-2);min-height:var(--tap-target-min);background:0 0;border:none;text-decoration:underline}._gateLinkBtn_lhd93_411:focus-visible{outline:var(--focus-ring-width) solid var(--focus-ring-color);outline-offset:var(--focus-ring-offset)}._gateActions_lhd93_427{gap:var(--space-3);align-items:center;display:flex}._contentSelection_lhd93_434{gap:var(--space-3);flex-direction:column;display:flex}._contentActions_lhd93_440{gap:var(--space-2);display:flex}._smallBtn_lhd93_445{padding:var(--space-1) var(--space-3);border:1px solid var(--color-border);border-radius:var(--radius-sm);background:var(--color-surface);color:var(--color-text-muted);font-size:var(--font-size-xs);cursor:pointer;min-height:36px;transition:all var(--transition-fast)}._smallBtn_lhd93_445:hover{border-color:var(--color-primary);color:var(--color-primary)}._smallBtn_lhd93_445:focus-visible{outline:var(--focus-ring-width) solid var(--focus-ring-color);outline-offset:var(--focus-ring-offset)}._contentList_lhd93_467{gap:var(--space-1);border:1px solid var(--color-border);border-radius:var(--radius-md);max-height:240px;padding:var(--space-2);flex-direction:column;display:flex;overflow-y:auto}._contentItem_lhd93_478{align-items:center;gap:var(--space-2);padding:var(--space-2);border-radius:var(--radius-sm);cursor:pointer;min-height:36px;transition:background var(--transition-fast);display:flex}._contentItem_lhd93_478:hover{background:var(--color-surface-alt)}._contentCheckbox_lhd93_493{width:18px;height:18px;accent-color:var(--color-primary);flex-shrink:0}._contentItemTitle_lhd93_500{font-size:var(--font-size-xs);color:var(--color-text);text-overflow:ellipsis;white-space:nowrap;flex:1;overflow:hidden}._contentItemType_lhd93_509{color:var(--color-text-muted);text-transform:capitalize;flex-shrink:0;font-size:.6875rem}._settingsBtn_lhd93_517{width:var(--tap-target-min);height:var(--tap-target-min);cursor:pointer;border-radius:var(--radius-md);color:var(--color-text-muted);transition:color var(--transition-fast), background var(--transition-fast);background:0 0;border:none;justify-content:center;align-items:center;font-size:1.25rem;display:flex}._settingsBtn_lhd93_517:hover{color:var(--color-text);background:var(--color-surface-alt)}._settingsBtn_lhd93_517:focus-visible{outline:var(--focus-ring-width) solid var(--focus-ring-color);outline-offset:var(--focus-ring-offset)}._srOnly_lhd93_543{clip:rect(0, 0, 0, 0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}@media (width>=768px){._overlay_lhd93_3{padding-top:var(--space-12)}._panel_lhd93_16{max-width:520px}._themeOptions_lhd93_150{gap:var(--space-3)}}@media (width<=374px){._panelBody_lhd93_74{padding:var(--space-3)}._themeBtn_lhd93_155{padding:var(--space-1) var(--space-2);font-size:.6875rem}}