{"ast":null,"code":"'use client';\n\nimport * as React from 'react';\nimport useEnhancedEffect from '@mui/utils/useEnhancedEffect';\nimport useId from '@mui/utils/useId';\nimport GlobalStyles from '../GlobalStyles';\nimport useThemeWithoutDefault from '../useThemeWithoutDefault';\n\n/**\n * This hook returns a `GlobalStyles` component that sets the CSS layer order (for server-side rendering).\n * Then on client-side, it injects the CSS layer order into the document head to ensure that the layer order is always present first before other Emotion styles.\n */\nimport { jsx as _jsx } from \"react/jsx-runtime\";\nexport default function useLayerOrder(theme) {\n  const upperTheme = useThemeWithoutDefault();\n  const id = useId() || '';\n  const {\n    modularCssLayers\n  } = theme;\n  let layerOrder = 'mui.global, mui.components, mui.theme, mui.custom, mui.sx';\n  if (!modularCssLayers || upperTheme !== null) {\n    // skip this hook if upper theme exists.\n    layerOrder = '';\n  } else if 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