// LandingPage.jsx
import { useState, useEffect, useCallback, memo } from 'react'
import {
  Box,
  Container,
  Typography,
  Button,
  Grid,
  Card,
  CardContent,
  useTheme,
  alpha,
  Stack,
  Paper,
  Divider,
  useMediaQuery,
  IconButton,
  Tooltip,
  Chip,
  Rating,
  LinearProgress,
  Avatar,
  Fab,
  useScrollTrigger,
  Backdrop,
} from '@mui/material'
import {
  Timeline,
  ShowChart,
  Compare,
  Analytics,
  TrendingUp,
  Assessment,
  AccountBalance,
  Speed,
  CloudSync,
  Autorenew,
  LinkedIn,
  Email,
  KeyboardArrowUp,
  Star,
  Lightbulb,
  BarChart,
  Insights,
  NewReleases,
  Update,
} from '@mui/icons-material'
import Tutorial from './Tutorial'
import MobileLanding from './MobileLanding'

const features = [
  // ... [Your existing features data]
]

const socialLinks = [
  // ... [Your existing social links data]
]

const statistics = [
  // ... [Your existing statistics data]
]

const testimonials = [
  // ... [Your existing testimonials data]
]

const whatsNew = [
  // ... [Your existing what's new data]
]

// Scroll to top component remains unchanged
function ScrollToTop() {
  const trigger = useScrollTrigger({
    disableHysteresis: true,
    threshold: 100,
  })

  const handleClick = () => {
    window.scrollTo({ top: 0, behavior: 'smooth' })
  }

  return (
    <Backdrop open={trigger}>
      <Box
        role="presentation"
        sx={{
          position: 'fixed',
          bottom: 32,
          right: 32,
          zIndex: 1,
        }}
      >
        <Fab
          color="primary"
          size="medium"
          aria-label="scroll back to top"
          onClick={handleClick}
          sx={{
            boxShadow: (theme) =>
              `0 8px 16px ${alpha(theme.palette.primary.main, 0.25)}`,
          }}
          type="button" // Explicit type
        >
          <KeyboardArrowUp />
        </Fab>
      </Box>
    </Backdrop>
  )
}

// TradingViewWidget remains unchanged
function TradingViewWidget() {
  const theme = useTheme();

  useEffect(() => {
    const script = document.createElement('script');
    script.type = 'text/javascript';
    script.src = 'https://s3.tradingview.com/external-embedding/embed-widget-ticker-tape.js';
    script.async = true;
    script.innerHTML = JSON.stringify({
      symbols: [
        // ... [Your existing symbols]
      ],
      showSymbolLogo: true,
      isTransparent: true,
      displayMode: "adaptive",
      colorTheme: theme.palette.mode,
      locale: "en"
    });

    const container = document.createElement('div');
    container.className = 'tradingview-widget-container__widget';
    
    const widgetContainer = document.querySelector('.tradingview-widget-container');
    if (widgetContainer) {
      widgetContainer.appendChild(container);
      widgetContainer.appendChild(script);
    }

    return () => {
      if (widgetContainer) {
        if (container && container.parentNode === widgetContainer) {
          widgetContainer.removeChild(container);
        }
        if (script && script.parentNode === widgetContainer) {
          widgetContainer.removeChild(script);
        }
      }
    };
  }, [theme.palette.mode]);

  return (
    <Box sx={{ width: '100%', height: 'auto', position: 'relative', zIndex: 2 }}>
      <div className="tradingview-widget-container">
        {/* Container is handled dynamically */}
      </div>
    </Box>
  );
}

const LandingPage = ({ onGetStarted, isDarkMode, onToggleTheme }) => {
  const theme = useTheme()
  const [tutorialState, setTutorialState] = useState({
    isOpen: false,
    currentStep: 0,
    isCompleted: false
  });
  const isMobile = useMediaQuery(theme.breakpoints.down('sm'))
  const [openSpeedDial, setOpenSpeedDial] = useState(false)
  const [showProgress, setShowProgress] = useState(false)

  // Memoize handlers
  const handleStartWithTutorial = useCallback(() => {
    setTutorialState(prev => {
      if (!prev.isOpen) {
        return {
          isOpen: true,
          currentStep: 0,
          isCompleted: false
        };
      }
      return prev;
    });
  }, []);

  const handleTutorialClose = useCallback((completed) => {
    setTutorialState({
      isOpen: false,
      currentStep: 0,
      isCompleted: completed
    });

    if (completed) {
      setTimeout(() => {
        onGetStarted();
      }, 300);
    }
  }, [onGetStarted]);

  const handleTutorialStepChange = useCallback((step) => {
    setTutorialState(prev => ({
      ...prev,
      currentStep: step
    }));
  }, []);

  const handleSkipTutorial = useCallback(() => {
    setShowProgress(true)
    setTimeout(() => {
      setShowProgress(false)
      onGetStarted()
    }, 1500)
  }, [onGetStarted])

  // Prevent tutorial from showing on initial render
  const [initialRender, setInitialRender] = useState(true)
  useEffect(() => {
    if (initialRender) {
      setInitialRender(false)
    }
  }, [initialRender])

  const handleSpeedDialAction = (action) => {
    setOpenSpeedDial(false)
    switch (action) {
      case 'tutorial':
        handleStartWithTutorial()
        break
      case 'start':
        setShowProgress(true)
        setTimeout(() => {
          setShowProgress(false)
          handleSkipTutorial()
        }, 1500)
        break
      default:
        break
    }
  }

  // Original desktop version remains largely unchanged
  const DesktopLanding = () => (
    <Box
      sx={{
        minHeight: '100vh',
        bgcolor: 'background.default',
        overflow: 'hidden',
        position: 'relative',
        display: 'flex',
        flexDirection: 'column',
        margin: 0,
        padding: 0,
        '&::before': {
          content: '""',
          position: 'absolute',
          top: 0,
          left: 0,
          right: 0,
          bottom: 0,
          background: theme.palette.mode === 'light'
            ? `linear-gradient(45deg, ${alpha(theme.palette.primary.light, 0.03)}, ${alpha(theme.palette.primary.main, 0.03)})`
            : `linear-gradient(45deg, ${alpha(theme.palette.primary.dark, 0.03)}, ${alpha(theme.palette.primary.main, 0.03)})`,
          zIndex: 0,
          pointerEvents: 'none',
        }
      }}
    >
      {/* Add TradingView Widget at the top */}
      <TradingViewWidget />

      {/* Content container */}
      <Box
        sx={{
          flex: 1,
          display: 'flex',
          flexDirection: 'column',
          position: 'relative',
          zIndex: 1,
          bgcolor: 'background.default',
          margin: 0,
          padding: 0,
          '& > *': {
            marginBottom: 0,
          },
        }}
      >
        {/* Hero Section */}
        <Box
          sx={{
            flex: 1,
            display: 'flex',
            alignItems: 'center',
            pb: { xs: 4, md: 6 },
            bgcolor: 'background.default',
            position: 'relative',
          }}
        >
          <Container maxWidth="lg" sx={{ px: { xs: 2, sm: 4, md: 8 }, position: 'relative', zIndex: 1 }}>
            <Grid container spacing={{ xs: 4, md: 6 }} alignItems="center">
              <Grid item xs={12} md={6}>
                <Box sx={{ position: 'relative' }}>
                  {/* Enhanced title with animations */}
                  <Typography
                    component="h1"
                    variant="h2"
                    sx={{
                      fontSize: { xs: '2.5rem', sm: '3rem', md: '4rem', lg: '4.5rem' },
                      fontWeight: 800,
                      textAlign: { xs: 'center', md: 'left' },
                      ml: { xs: 0, md: 4 },
                      position: 'relative',
                      '& .highlight': {
                        position: 'relative',
                        display: 'inline-block',
                        background: `linear-gradient(135deg, ${theme.palette.primary.main}, ${theme.palette.secondary.main})`,
                        backgroundClip: 'text',
                        WebkitBackgroundClip: 'text',
                        WebkitTextFillColor: 'transparent',
                        animation: 'gradient 4s linear infinite',
                        '@keyframes gradient': {
                          '0%': { backgroundPosition: '0% center' },
                          '100%': { backgroundPosition: '200% center' },
                        },
                      },
                    }}
                  >
                    <span className="highlight">Portfolio AI</span>
                  </Typography>

                  {/* Enhanced description with animation */}
                  <Typography
                    variant="h5"
                    sx={{
                      mb: { xs: 3, md: 4 },
                      mt: { xs: 2, md: 3 },
                      fontSize: { xs: '1.1rem', sm: '1.25rem', md: '1.5rem' },
                      lineHeight: 1.6,
                      textAlign: { xs: 'center', md: 'left' },
                      ml: { xs: 0, md: 4 },
                      maxWidth: { xs: '100%', md: '80%' },
                      px: { xs: 2, md: 0 },
                      color: alpha(theme.palette.text.secondary, 0.9),
                      position: 'relative',
                      '& .highlight': {
                        color: theme.palette.primary.main,
                        fontWeight: 600,
                        position: 'relative',
                      },
                    }}
                  >
                    <span className="highlight">Advanced portfolio analysis</span> and comparison tools to optimize your investments with <span className="highlight">real-time data</span> and comprehensive metrics.
                  </Typography>

                  {/* Action buttons with enhanced animations */}
                  <Stack
                    direction={{ xs: 'column', sm: 'row' }}
                    spacing={2}
                    justifyContent={{ xs: 'center', md: 'flex-start' }}
                    sx={{
                      ml: { xs: 0, md: 4 },
                      '& .MuiButton-root': {
                        transition: 'all 0.3s ease',
                        transform: 'translateY(0)',
                        '&:hover': {
                          transform: 'translateY(-4px)',
                          boxShadow: `0 8px 16px ${alpha(theme.palette.primary.main, 0.25)}`,
                        },
                      },
                    }}
                  >
                    <Button
                      variant="contained"
                      size="large"
                      onClick={handleStartWithTutorial}
                      startIcon={<Assessment />}
                      sx={{
                        py: 1.8,
                        px: 4,
                        fontSize: '1.1rem',
                        fontWeight: 600,
                        borderRadius: 3,
                        background: `linear-gradient(45deg, ${theme.palette.primary.main}, ${theme.palette.secondary.main})`,
                        backgroundSize: '200% auto',
                        animation: 'gradient 3s infinite',
                        '@keyframes gradient': {
                          '0%': { backgroundPosition: '0% center' },
                          '50%': { backgroundPosition: '100% center' },
                          '100%': { backgroundPosition: '0% center' },
                        },
                      }}
                      type="button" // Explicit type
                    >
                      Start with Tutorial
                    </Button>
                    <Button
                      variant="outlined"
                      size="large"
                      onClick={handleSkipTutorial}
                      sx={{
                        py: 1.8,
                        px: 4,
                        fontSize: '1.1rem',
                        fontWeight: 500,
                        borderRadius: 3,
                        borderWidth: 2,
                        borderColor: theme.palette.primary.main,
                        color: theme.palette.primary.main,
                        position: 'relative',
                        overflow: 'hidden',
                        '&::after': {
                          content: '""',
                          position: 'absolute',
                          top: 0,
                          left: 0,
                          width: '100%',
                          height: '100%',
                          background: alpha(theme.palette.primary.main, 0.1),
                          transform: 'translateX(-100%)',
                          transition: 'transform 0.3s ease',
                        },
                        '&:hover::after': {
                          transform: 'translateX(0)',
                        },
                      }}
                      type="button" // Explicit type
                    >
                      Skip Tutorial
                    </Button>
                  </Stack>
                </Box>
              </Grid>

              {/* Enhanced Statistics Cards */}
              <Grid item xs={12} md={6}>
                <Grid container spacing={2}>
                  {statistics.map((stat, index) => (
                    <Grid item xs={12} sm={4} key={stat.label}>
                      <Paper
                        elevation={0}
                        sx={{
                          p: 3,
                          height: '100%',
                          borderRadius: 4,
                          background: `linear-gradient(135deg, ${alpha(stat.color, 0.1)}, ${alpha(stat.color, 0.05)})`,
                          backdropFilter: 'blur(8px)',
                          border: `1px solid ${alpha(stat.color, 0.2)}`,
                          transition: 'all 0.3s ease',
                          transform: 'translateY(0)',
                          '&:hover': {
                            transform: 'translateY(-8px)',
                            boxShadow: `0 12px 24px ${alpha(stat.color, 0.2)}`,
                            '& .stat-icon': {
                              transform: 'scale(1.1) rotate(10deg)',
                            },
                          },
                        }}
                      >
                        <Box
                          className="stat-icon"
                          sx={{
                            width: 56,
                            height: 56,
                            borderRadius: '50%',
                            display: 'flex',
                            alignItems: 'center',
                            justifyContent: 'center',
                            background: `linear-gradient(135deg, ${stat.color}, ${alpha(stat.color, 0.8)})`,
                            mb: 2,
                            transition: 'transform 0.3s ease',
                          }}
                        >
                          <stat.icon sx={{ fontSize: 28, color: 'white' }} />
                        </Box>
                        <Typography
                          variant="h3"
                          sx={{
                            fontWeight: 700,
                            color: stat.color,
                            mb: 1,
                            fontSize: { xs: '2rem', sm: '2.5rem' },
                          }}
                        >
                          {stat.value}
                        </Typography>
                        <Typography
                          variant="subtitle1"
                          sx={{
                            color: alpha(theme.palette.text.primary, 0.7),
                            fontWeight: 500,
                          }}
                        >
                          {stat.label}
                        </Typography>
                      </Paper>
                    </Grid>
                  ))}
                </Grid>
              </Grid>
            </Grid>
          </Container>
        </Box>

        {/* What's New Section with improved spacing */}
        {/* ... [Rest of your LandingPage.jsx remains unchanged] */}

        {/* Footer with improved spacing */}
        {/* ... [Rest of your LandingPage.jsx remains unchanged] */}
      </Box>

      {/* Loading Progress */}
      {showProgress && (
        <Box
          sx={{
            position: 'fixed',
            top: 0,
            left: 0,
            right: 0,
            zIndex: 9999,
          }}
        >
          <LinearProgress />
        </Box>
      )}

      {/* Tutorial Dialog */}
      {!initialRender && (
        <Tutorial 
          open={tutorialState.isOpen}
          currentStep={tutorialState.currentStep}
          onStepChange={handleTutorialStepChange}
          onClose={handleTutorialClose}
          isCompleted={tutorialState.isCompleted}
        />
      )}

      {/* Backdrop for SpeedDial */}
      <Backdrop open={openSpeedDial} />

      {/* Scroll To Top */}
      <ScrollToTop />
    </Box>
  )

  return isMobile ? (
    <MobileLanding
      theme={theme}
      features={features}
      socialLinks={socialLinks}
      handleStartWithTutorial={handleStartWithTutorial}
      handleSkipTutorial={handleSkipTutorial}
      handleSpeedDialAction={handleSpeedDialAction}
      showTutorial={tutorialState.isOpen}
      handleTutorialClose={handleTutorialClose}
      openSpeedDial={openSpeedDial}
      setOpenSpeedDial={setOpenSpeedDial}
    />
  ) : (
    <DesktopLanding />
  )
}

export default memo(LandingPage) // Memoize the component

above is the update code of below, give me the full update code:
// LandingPage.jsx
import { useState, useEffect, useCallback, memo } from 'react'
import {
  Box,
  Container,
  Typography,
  Button,
  Grid,
  Card,
  CardContent,
  useTheme,
  alpha,
  Stack,
  Paper,
  Divider,
  useMediaQuery,
  IconButton,
  Tooltip,
  Chip,
  Rating,
  LinearProgress,
  Avatar,
  Fab,
  useScrollTrigger,
  Backdrop,
} from '@mui/material'
import {
  Timeline,
  ShowChart,
  Compare,
  Analytics,
  TrendingUp,
  Assessment,
  AccountBalance,
  Speed,
  CloudSync,
  Autorenew,
  LinkedIn,
  Email,
  KeyboardArrowUp,
  Star,
  Lightbulb,
  BarChart,
  Insights,
  NewReleases,
  Update,
} from '@mui/icons-material'
import Tutorial from './Tutorial'
import MobileLanding from './MobileLanding'

const features = [
  {
    title: 'Portfolio Analysis',
    description:
      'Analyze your investment portfolio with comprehensive metrics and performance indicators.',
    icon: Analytics,
    color: '#2196f3',
    details: [
      {
        left: ['Performance metrics', 'Risk assessment tools'],
        right: ['Historical analysis', 'Custom date ranges'],
      },
    ],
  },
  {
    title: 'Real-time Data',
    description:
      'Access real-time market data and historical performance for accurate analysis.',
    icon: ShowChart,
    color: '#4caf50',
    details: [
      {
        left: ['Live market data', 'Historical prices'],
        right: ['Automated updates', 'Data validation'],
      },
    ],
  },
  {
    title: 'Portfolio Comparison',
    description:
      'Compare multiple portfolios and benchmark against market indices.',
    icon: Compare,
    color: '#ff9800',
    details: [
      {
        left: ['Side-by-side comparison', 'Benchmark analysis'],
        right: ['Performance attribution', 'Custom benchmarks'],
      },
    ],
  },
  {
    title: 'Risk Assessment',
    description:
      'Evaluate portfolio risk metrics and correlation analysis.',
    icon: Speed,
    color: '#f44336',
    details: [
      {
        left: ['Risk metrics calculation', 'Correlation analysis'],
        right: ['Volatility assessment', 'Drawdown analysis'],
      },
    ],
  },
  {
    title: 'Performance Tracking',
    description:
      'Track portfolio performance over time with detailed metrics and charts.',
    icon: TrendingUp,
    color: '#9c27b0',
    details: [
      {
        left: ['Performance monitoring', 'Interactive charts'],
        right: ['Custom reporting', 'Export capabilities'],
      },
    ],
  },
  {
    title: 'Cloud Sync',
    description:
      'Save and load your portfolios securely across devices.',
    icon: CloudSync,
    color: '#00bcd4',
    details: [
      {
        left: ['Secure storage', 'Cross-device sync'],
        right: ['Backup & restore', 'Version history'],
      },
    ],
  },
]

const socialLinks = [
  { icon: Autorenew, label: 'Status', url: 'https://status.twinight.co' },
  { icon: LinkedIn, label: 'LinkedIn', url: 'https://linkedin.com' },
  { icon: Email, label: 'Email', url: 'mailto:philip@twinight.co' },
]

const statistics = [
  {
    value: '99%',
    label: 'Accuracy',
    icon: Timeline,
    color: '#2196f3',
  },
  {
    value: '24/7',
    label: 'Real-time Updates',
    icon: Insights,
    color: '#4caf50',
  },
  {
    value: '50+',
    label: 'Metrics',
    icon: BarChart,
    color: '#ff9800',
  },
]

// Update the testimonials data first
const testimonials = [
  {
    name: 'Sarah Chen',
    role: 'Senior Portfolio Manager',
    company: 'Capital Investments Ltd',
    avatar: null, // We'll use the first letter of the name
    rating: 5,
    comment:
      'The real-time analytics and risk assessment tools have transformed how we manage client portfolios. The interface is intuitive and the insights are invaluable.',
    tags: ['Risk Analysis', 'Real-time Data'],
  },
  {
    name: 'Michael Roberts',
    role: 'Investment Director',
    company: 'Quantum Fund Management',
    avatar: null,
    rating: 5,
    comment:
      'Outstanding portfolio comparison features. Being able to analyze multiple strategies simultaneously has greatly improved our decision-making process.',
    tags: ['Portfolio Comparison', 'Strategy Analysis'],
  },
  {
    name: 'Emma Thompson',
    role: 'Quantitative Analyst',
    company: 'Global Asset Management',
    avatar: null,
    rating: 5,
    comment:
      'The correlation analysis and risk metrics are exactly what we needed. The platform has become an essential part of our daily workflow.',
    tags: ['Correlation Analysis', 'Risk Metrics'],
  },
]

// Add What's New section data
const whatsNew = [
  {
    title: 'Real-time Analytics',
    description:
      'Get instant insights with our new real-time analytics engine',
    icon: Update,
    color: '#00bcd4',
    tag: 'New',
  },
  {
    title: 'Enhanced Reporting',
    description:
      'Export detailed reports with advanced visualization options',
    icon: Assessment,
    color: '#4caf50',
    tag: 'Updated',
  },
  {
    title: 'Smart Alerts',
    description:
      'Set up custom alerts for portfolio performance thresholds',
    icon: NewReleases,
    color: '#ff9800',
    tag: 'Coming Soon',
  },
]

// Scroll to top component
function ScrollToTop() {
  const trigger = useScrollTrigger({
    disableHysteresis: true,
    threshold: 100,
  })

  const handleClick = () => {
    window.scrollTo({ top: 0, behavior: 'smooth' })
  }

  return (
    <Backdrop open={trigger}>
      <Box
        role="presentation"
        sx={{
          position: 'fixed',
          bottom: 32,
          right: 32,
          zIndex: 1,
        }}
      >
        <Fab
          color="primary"
          size="medium"
          aria-label="scroll back to top"
          onClick={handleClick}
          sx={{
            boxShadow: (theme) =>
              `0 8px 16px ${alpha(theme.palette.primary.main, 0.25)}`,
          }}
        >
          <KeyboardArrowUp />
        </Fab>
      </Box>
    </Backdrop>
  )
}

// Add this new component for the TradingView widget
function TradingViewWidget() {
  const theme = useTheme();

  useEffect(() => {
    const script = document.createElement('script');
    script.type = 'text/javascript';
    script.src = 'https://s3.tradingview.com/external-embedding/embed-widget-ticker-tape.js';
    script.async = true;
    script.innerHTML = JSON.stringify({
      symbols: [
        {
          proName: "FOREXCOM:SPXUSD",
          title: "S&P 500 Index"
        },
        {
          description: "Nvidia Corporation",
          proName: "NASDAQ:NVDA"
        },
        {
          description: "Microsoft Corporation",
          proName: "NASDAQ:MSFT"
        },
        {
          description: "Meta Platforms, Inc.",
          proName: "NASDAQ:META"
        },
        {
          description: "Alphabet Inc.",
          proName: "NASDAQ:GOOGL"
        },
        {
          description: "Coinbase Global, Inc.",
          proName: "NASDAQ:COIN"
        },
        {
          description: "Amazon.com, Inc.",
          proName: "NASDAQ:AMZN"
        },
        {
          description: "Apple Inc.",
          proName: "NASDAQ:AAPL"
        },
        {
          description: "Tesla, Inc.",
          proName: "NASDAQ:TSLA"
        }
      ],
      showSymbolLogo: true,
      isTransparent: true,
      displayMode: "adaptive",
      colorTheme: theme.palette.mode,
      locale: "en"
    });

    // Create a container reference
    const container = document.createElement('div');
    container.className = 'tradingview-widget-container__widget';
    
    // Find the parent element and append both container and script
    const widgetContainer = document.querySelector('.tradingview-widget-container');
    if (widgetContainer) {
      widgetContainer.appendChild(container);
      widgetContainer.appendChild(script);
    }

    // Cleanup function
    return () => {
      if (widgetContainer) {
        if (container && container.parentNode === widgetContainer) {
          widgetContainer.removeChild(container);
        }
        if (script && script.parentNode === widgetContainer) {
          widgetContainer.removeChild(script);
        }
      }
    };
  }, [theme.palette.mode]);

  return (
    <Box sx={{ width: '100%', height: 'auto', position: 'relative', zIndex: 2 }}>
      <div className="tradingview-widget-container">
        {/* Remove the div here since we're creating it dynamically */}
      </div>
    </Box>
  );
}
const LandingPage = ({ onGetStarted, isDarkMode, onToggleTheme }) => {
  const theme = useTheme()
  const [tutorialState, setTutorialState] = useState({
    isOpen: false,
    currentStep: 0,
    isCompleted: false
  });
  const isMobile = useMediaQuery(theme.breakpoints.down('sm'))
  const [openSpeedDial, setOpenSpeedDial] = useState(false)
  const [showProgress, setShowProgress] = useState(false)

  // Memoize handlers
  const handleStartWithTutorial = useCallback(() => {
    setTutorialState(prev => {
      if (!prev.isOpen) {
        return {
          isOpen: true,
          currentStep: 0,
          isCompleted: false
        };
      }
      return prev;
    });
  }, []);

  const handleTutorialClose = useCallback((completed) => {
    setTutorialState({
      isOpen: false,
      currentStep: 0,
      isCompleted: completed
    });

    if (completed) {
      setTimeout(() => {
        onGetStarted();
      }, 300);
    }
  }, [onGetStarted]);

  const handleTutorialStepChange = useCallback((step) => {
    setTutorialState(prev => ({
      ...prev,
      currentStep: step
    }));
  }, []);

  const handleSkipTutorial = useCallback(() => {
    setShowProgress(true)
    setTimeout(() => {
      setShowProgress(false)
      onGetStarted()
    }, 1500)
  }, [onGetStarted])

  // Prevent tutorial from showing on initial render
  const [initialRender, setInitialRender] = useState(true)
  useEffect(() => {
    if (initialRender) {
      setInitialRender(false)
    }
  }, [])

  const handleSpeedDialAction = (action) => {
    setOpenSpeedDial(false)
    switch (action) {
      case 'tutorial':
        handleStartWithTutorial()
        break
      case 'start':
        setShowProgress(true)
        setTimeout(() => {
          setShowProgress(false)
          handleSkipTutorial()
        }, 1500)
        break
      default:
        break
    }
  }

  // Original desktop version
  const DesktopLanding = () => (
    <Box
      sx={{
        minHeight: '100vh',
        bgcolor: 'background.default',
        overflow: 'hidden',
        position: 'relative',
        display: 'flex',
        flexDirection: 'column',
        margin: 0,
        padding: 0,
        '&::before': {
          content: '""',
          position: 'absolute',
          top: 0,
          left: 0,
          right: 0,
          bottom: 0,
          background: theme.palette.mode === 'light'
            ? `linear-gradient(45deg, ${alpha(theme.palette.primary.light, 0.03)}, ${alpha(theme.palette.primary.main, 0.03)})`
            : `linear-gradient(45deg, ${alpha(theme.palette.primary.dark, 0.03)}, ${alpha(theme.palette.primary.main, 0.03)})`,
          zIndex: 0,
          pointerEvents: 'none',
        }
      }}
    >
      {/* Add TradingView Widget at the top */}
      <TradingViewWidget />

      {/* Content container */}
      <Box
        sx={{
          flex: 1,
          display: 'flex',
          flexDirection: 'column',
          position: 'relative',
          zIndex: 1,
          bgcolor: 'background.default',
          margin: 0,
          padding: 0,
          '& > *': {
            marginBottom: 0,
          },
        }}
      >
        {/* Hero Section */}
        <Box
          sx={{
            flex: 1,
            display: 'flex',
            alignItems: 'center',
            pb: { xs: 4, md: 6 },
            bgcolor: 'background.default',
            position: 'relative',
          }}
        >
          <Container maxWidth="lg" sx={{ px: { xs: 2, sm: 4, md: 8 }, position: 'relative', zIndex: 1 }}>
            <Grid container spacing={{ xs: 4, md: 6 }} alignItems="center">
              <Grid item xs={12} md={6}>
                <Box sx={{ position: 'relative' }}>
                  {/* Enhanced title with animations */}
                  <Typography
                    component="h1"
                    variant="h2"
                    sx={{
                      fontSize: { xs: '2.5rem', sm: '3rem', md: '4rem', lg: '4.5rem' },
                      fontWeight: 800,
                      textAlign: { xs: 'center', md: 'left' },
                      ml: { xs: 0, md: 4 },
                      position: 'relative',
                      '& .highlight': {
                        position: 'relative',
                        display: 'inline-block',
                        background: `linear-gradient(135deg, ${theme.palette.primary.main}, ${theme.palette.secondary.main})`,
                        backgroundClip: 'text',
                        WebkitBackgroundClip: 'text',
                        WebkitTextFillColor: 'transparent',
                        animation: 'gradient 4s linear infinite',
                        '@keyframes gradient': {
                          '0%': { backgroundPosition: '0% center' },
                          '100%': { backgroundPosition: '200% center' },
                        },
                      },
                    }}
                  >
                    <span className="highlight">Portfolio AI</span>
                  </Typography>

                  {/* Enhanced description with animation - removed background effects */}
                  <Typography
                    variant="h5"
                    sx={{
                      mb: { xs: 3, md: 4 },
                      mt: { xs: 2, md: 3 },
                      fontSize: { xs: '1.1rem', sm: '1.25rem', md: '1.5rem' },
                      lineHeight: 1.6,
                      textAlign: { xs: 'center', md: 'left' },
                      ml: { xs: 0, md: 4 },
                      maxWidth: { xs: '100%', md: '80%' },
                      px: { xs: 2, md: 0 },
                      color: alpha(theme.palette.text.secondary, 0.9),
                      position: 'relative',
                      '& .highlight': {
                        color: theme.palette.primary.main,
                        fontWeight: 600,
                        position: 'relative',
                      },
                    }}
                  >
                    <span className="highlight">Advanced portfolio analysis</span> and comparison tools to optimize your investments with <span className="highlight">real-time data</span> and comprehensive metrics.
                  </Typography>

                  {/* Action buttons with enhanced animations */}
                  <Stack
                    direction={{ xs: 'column', sm: 'row' }}
                    spacing={2}
                    justifyContent={{ xs: 'center', md: 'flex-start' }}
                    sx={{
                      ml: { xs: 0, md: 4 },
                      '& .MuiButton-root': {
                        transition: 'all 0.3s ease',
                        transform: 'translateY(0)',
                        '&:hover': {
                          transform: 'translateY(-4px)',
                          boxShadow: `0 8px 16px ${alpha(theme.palette.primary.main, 0.25)}`,
                        },
                      },
                    }}
                  >
                    <Button
                      variant="contained"
                      size="large"
                      onClick={handleStartWithTutorial}
                      startIcon={<Assessment />}
                      sx={{
                        py: 1.8,
                        px: 4,
                        fontSize: '1.1rem',
                        fontWeight: 600,
                        borderRadius: 3,
                        background: `linear-gradient(45deg, ${theme.palette.primary.main}, ${theme.palette.secondary.main})`,
                        backgroundSize: '200% auto',
                        animation: 'gradient 3s infinite',
                        '@keyframes gradient': {
                          '0%': { backgroundPosition: '0% center' },
                          '50%': { backgroundPosition: '100% center' },
                          '100%': { backgroundPosition: '0% center' },
                        },
                      }}
                    >
                      Start with Tutorial
                    </Button>
                    <Button
                      variant="outlined"
                      size="large"
                      onClick={handleSkipTutorial}
                      sx={{
                        py: 1.8,
                        px: 4,
                        fontSize: '1.1rem',
                        fontWeight: 500,
                        borderRadius: 3,
                        borderWidth: 2,
                        borderColor: theme.palette.primary.main,
                        color: theme.palette.primary.main,
                        position: 'relative',
                        overflow: 'hidden',
                        '&::after': {
                          content: '""',
                          position: 'absolute',
                          top: 0,
                          left: 0,
                          width: '100%',
                          height: '100%',
                          background: alpha(theme.palette.primary.main, 0.1),
                          transform: 'translateX(-100%)',
                          transition: 'transform 0.3s ease',
                        },
                        '&:hover::after': {
                          transform: 'translateX(0)',
                        },
                      }}
                    >
                      Skip Tutorial
                    </Button>
                  </Stack>
                </Box>
              </Grid>

              {/* Enhanced Statistics Cards */}
              <Grid item xs={12} md={6}>
                <Grid container spacing={2}>
                  {statistics.map((stat, index) => (
                    <Grid item xs={12} sm={4} key={stat.label}>
                      <Paper
                        elevation={0}
                        sx={{
                          p: 3,
                          height: '100%',
                          borderRadius: 4,
                          background: `linear-gradient(135deg, ${alpha(stat.color, 0.1)}, ${alpha(stat.color, 0.05)})`,
                          backdropFilter: 'blur(8px)',
                          border: `1px solid ${alpha(stat.color, 0.2)}`,
                          transition: 'all 0.3s ease',
                          transform: 'translateY(0)',
                          '&:hover': {
                            transform: 'translateY(-8px)',
                            boxShadow: `0 12px 24px ${alpha(stat.color, 0.2)}`,
                            '& .stat-icon': {
                              transform: 'scale(1.1) rotate(10deg)',
                            },
                          },
                        }}
                      >
                        <Box
                          className="stat-icon"
                          sx={{
                            width: 56,
                            height: 56,
                            borderRadius: '50%',
                            display: 'flex',
                            alignItems: 'center',
                            justifyContent: 'center',
                            background: `linear-gradient(135deg, ${stat.color}, ${alpha(stat.color, 0.8)})`,
                            mb: 2,
                            transition: 'transform 0.3s ease',
                          }}
                        >
                          <stat.icon sx={{ fontSize: 28, color: 'white' }} />
                        </Box>
                        <Typography
                          variant="h3"
                          sx={{
                            fontWeight: 700,
                            color: stat.color,
                            mb: 1,
                            fontSize: { xs: '2rem', sm: '2.5rem' },
                          }}
                        >
                          {stat.value}
                        </Typography>
                        <Typography
                          variant="subtitle1"
                          sx={{
                            color: alpha(theme.palette.text.primary, 0.7),
                            fontWeight: 500,
                          }}
                        >
                          {stat.label}
                        </Typography>
                      </Paper>
                    </Grid>
                  ))}
                </Grid>
              </Grid>
            </Grid>
          </Container>
        </Box>

        {/* What's New Section with improved spacing */}
        <Box
          id="whatsNew"
          sx={{
            py: { xs: 6, md: 8 },
            bgcolor: 'background.default',
            position: 'relative',
            mt: 0,
            mb: 0,
          }}
        >
          <Container
            maxWidth="lg"
            sx={{
              px: { xs: 4, sm: 6, md: 8 },
            }}
          >
            <Box>
              <Typography
                variant="h3"
                align="center"
                fontWeight="bold"
                sx={{
                  mb: { xs: 3, md: 4 },
                  background: `linear-gradient(120deg, ${theme.palette.primary.main}, ${theme.palette.secondary.main})`,
                  WebkitBackgroundClip: 'text',
                  WebkitTextFillColor: 'transparent',
                  position: 'relative',
                  display: 'inline-block',
                  left: '50%',
                  transform: 'translateX(-50%)',
                  '&::after': {
                    content: '""',
                    position: 'absolute',
                    bottom: -8,
                    left: 0,
                    width: '100%',
                    height: 3,
                    background: `linear-gradient(90deg, ${theme.palette.primary.main}, ${theme.palette.secondary.main})`,
                    borderRadius: 2,
                    transform: 'scaleX(1)',
                    transformOrigin: 'left',
                    transition: 'transform 1.5s ease-out',
                  },
                }}
              >
                What's New
              </Typography>
              <Typography
                variant="h6"
                align="center"
                color="text.secondary"
                sx={{ mb: 6, maxWidth: 600, mx: 'auto' }}
              >
                Latest updates and improvements to enhance your portfolio
                analysis experience
              </Typography>
              <Grid
                container
                spacing={4}
                sx={{
                  mx: 'auto',
                  width: 'calc(100% + 32px)',
                  ml: -2,
                  mr: -2,
                }}
              >
                {whatsNew.map((item, index) => (
                  <Grid item xs={12} md={4} key={item.title}>
                    <Card
                      elevation={theme.palette.mode === 'light' ? 1 : 2}
                      sx={{
                        height: '100%',
                        borderRadius: 4,
                        transition: 'all 0.3s cubic-bezier(0.4, 0, 0.2, 1)',
                        border: `1px solid ${alpha(
                          item.color,
                          theme.palette.mode === 'light' ? 0.1 : 0.2
                        )}`,
                        bgcolor: theme.palette.mode === 'light'
                          ? 'background.paper'
                          : 'background.paper',
                        position: 'relative',
                        overflow: 'visible',
                        '&:hover': {
                          transform: 'translateY(-8px)',
                          boxShadow: `0 12px 28px ${alpha(
                            item.color,
                            theme.palette.mode === 'light' ? 0.2 : 0.3
                          )}`,
                          '& .whats-new-icon': {
                            transform: 'scale(1.1)',
                            bgcolor: alpha(
                              item.color,
                              theme.palette.mode === 'light' ? 0.15 : 0.25
                            ),
                          },
                        },
                      }}
                    >
                      <Box
                        sx={{
                          position: 'absolute',
                          top: -16,
                          right: 16,
                          zIndex: 1,
                        }}
                      >
                        <Chip
                          label={item.tag}
                          color={
                            item.tag === 'New'
                              ? 'success'
                              : item.tag === 'Updated'
                              ? 'primary'
                              : 'warning'
                          }
                          size="small"
                          sx={{
                            fontWeight: 'bold',
                            boxShadow: (theme) =>
                              `0 4px 12px ${alpha(
                                theme.palette.primary.main,
                                0.25
                              )}`,
                          }}
                        />
                      </Box>
                      <CardContent sx={{ p: 4 }}>
                        <Box
                          sx={{
                            display: 'flex',
                            alignItems: 'center',
                            mb: 2,
                          }}
                        >
                          <Avatar
                            sx={{
                              bgcolor: alpha(item.color, 0.1),
                              color: item.color,
                              width: 56,
                              height: 56,
                              mb: 2,
                            }}
                          >
                            <item.icon sx={{ fontSize: 28 }} />
                          </Avatar>
                        </Box>
                        <Typography
                          variant="h5"
                          gutterBottom
                          fontWeight="bold"
                        >
                          {item.title}
                        </Typography>
                        <Typography
                          color="text.secondary"
                          sx={{ lineHeight: 1.6 }}
                        >
                          {item.description}
                        </Typography>
                      </CardContent>
                    </Card>
                  </Grid>
                ))}
              </Grid>
            </Box>
          </Container>
        </Box>

        {/* Features Section with improved spacing */}
        <Box id="features" sx={{ py: { xs: 6, md: 8 }, position: 'relative', mb: -8, bgcolor: 'background.default' }}>
          <Container
            maxWidth="lg"
            sx={{
              px: { xs: 4, sm: 6, md: 8 },
            }}
          >
            <Typography
              variant="h3"
              align="center"
              fontWeight="bold"
              sx={{
                mb: { xs: 3, md: 4 },
                background: `linear-gradient(120deg, ${theme.palette.primary.main}, ${theme.palette.secondary.main})`,
                WebkitBackgroundClip: 'text',
                WebkitTextFillColor: 'transparent',
                position: 'relative',
                display: 'inline-block',
                left: '50%',
                transform: 'translateX(-50%)',
                '&::after': {
                  content: '""',
                  position: 'absolute',
                  bottom: -8,
                  left: 0,
                  width: '100%',
                  height: 3,
                  background: `linear-gradient(90deg, ${theme.palette.primary.main}, ${theme.palette.secondary.main})`,
                  borderRadius: 2,
                  transform: 'scaleX(1)',
                  transformOrigin: 'left',
                  transition: 'transform 1.5s ease-out',
                },
              }}
            >
              Features
            </Typography>
            <Typography
              variant="h6"
              align="center"
              color="text.secondary"
              sx={{ mb: 6, maxWidth: 600, mx: 'auto' }}
            >
              Powerful tools and analytics to optimize your investment strategy
            </Typography>
            <Grid
              container
              spacing={4}
              sx={{
                mx: 'auto',
                width: 'calc(100% + 32px)',
                ml: -2,
                mr: -2,
              }}
            >
              {features.map((feature, index) => (
                <Grid item xs={12} sm={6} md={4} key={feature.title} sx={{ px: { xs: 2, sm: 3, md: 4 } }}>
                  <Card
                    elevation={theme.palette.mode === 'light' ? 1 : 2}
                    sx={{
                      height: '100%',
                      display: 'flex',
                      flexDirection: 'column',
                      borderRadius: 4,
                      transition: 'all 0.3s cubic-bezier(0.4, 0, 0.2, 1)',
                      border: `1px solid ${alpha(
                        feature.color,
                        theme.palette.mode === 'light' ? 0.1 : 0.2
                      )}`,
                      bgcolor: theme.palette.mode === 'light'
                        ? 'background.paper'
                        : 'background.paper',
                      '&:hover': {
                        transform: 'translateY(-8px)',
                        boxShadow: `0 12px 28px ${alpha(
                          feature.color,
                          theme.palette.mode === 'light' ? 0.2 : 0.3
                        )}`,
                        '& .feature-icon': {
                          transform: 'scale(1.1)',
                          bgcolor: alpha(
                            feature.color,
                            theme.palette.mode === 'light' ? 0.15 : 0.25
                          ),
                        },
                      },
                    }}
                  >
                    <Box
                      sx={{
                        p: 3,
                        background: `linear-gradient(135deg, ${alpha(
                          feature.color,
                          theme.palette.mode === 'light' ? 0.1 : 0.15
                        )} 0%, ${alpha(
                          feature.color,
                          theme.palette.mode === 'light' ? 0.05 : 0.1
                        )} 100%)`,
                      }}
                    >
                      <Box
                        className="feature-icon"
                        sx={{
                          display: 'inline-flex',
                          p: 2,
                          borderRadius: '50%',
                          bgcolor: alpha(
                            feature.color,
                            theme.palette.mode === 'light' ? 0.1 : 0.2
                          ),
                          mb: 2,
                          transition:
                            'all 0.3s cubic-bezier(0.4, 0, 0.2, 1)',
                        }}
                      >
                        <feature.icon
                          sx={{
                            fontSize: 44,
                            color: feature.color,
                          }}
                        />
                      </Box>
                      <Typography
                        gutterBottom
                        variant="h5"
                        component="h2"
                        fontWeight="bold"
                        sx={{
                          fontSize: { xs: '1.35rem', sm: '1.5rem' },
                          mb: 1.5,
                        }}
                      >
                        {feature.title}
                      </Typography>
                      <Typography
                        color="text.secondary"
                        paragraph
                        sx={{
                          fontSize: { xs: '0.95rem', sm: '1rem' },
                          mb: 1,
                        }}
                      >
                        {feature.description}
                      </Typography>
                    </Box>
                    <CardContent
                      sx={{
                        flexGrow: 1,
                        display: 'flex',
                        alignItems: 'center',
                        p: 3,
                        pt: 2.5,
                        pb: 3,
                      }}
                    >
                      <Grid
                        container
                        spacing={3}
                        sx={{
                          justifyContent: 'center',
                          alignItems: 'center',
                        }}
                      >
                        <Grid item xs={6}>
                          <Stack spacing={2.5}>
                            {feature.details[0].left.map(
                              (detail, i) => (
                                <Box
                                  key={i}
                                  sx={{
                                    display: 'flex',
                                    alignItems: 'center',
                                    gap: 1.5,
                                  }}
                                >
                                  <Box
                                    sx={{
                                      width: 8,
                                      height: 8,
                                      borderRadius: '50%',
                                      bgcolor: feature.color,
                                      flexShrink: 0,
                                    }}
                                  />
                                  <Typography
                                    variant="body2"
                                    color="text.secondary"
                                    sx={{
                                      fontSize: {
                                        xs: '0.875rem',
                                        sm: '0.95rem',
                                      },
                                      fontWeight: 500,
                                    }}
                                  >
                                    {detail}
                                  </Typography>
                                </Box>
                              )
                            )}
                          </Stack>
                        </Grid>
                        <Grid item xs={6}>
                          <Stack spacing={2.5}>
                            {feature.details[0].right.map(
                              (detail, i) => (
                                <Box
                                  key={i}
                                  sx={{
                                    display: 'flex',
                                    alignItems: 'center',
                                    gap: 1.5,
                                  }}
                                >
                                  <Box
                                    sx={{
                                      width: 8,
                                      height: 8,
                                      borderRadius: '50%',
                                      bgcolor: feature.color,
                                      flexShrink: 0,
                                    }}
                                  />
                                  <Typography
                                    variant="body2"
                                    color="text.secondary"
                                    sx={{
                                      fontSize: {
                                        xs: '0.875rem',
                                        sm: '0.95rem',
                                      },
                                      fontWeight: 500,
                                    }}
                                  >
                                    {detail}
                                  </Typography>
                                </Box>
                              )
                            )}
                          </Stack>
                        </Grid>
                      </Grid>
                    </CardContent>
                  </Card>
                </Grid>
              ))}
            </Grid>
          </Container>
        </Box>

        {/* Testimonials Section with improved spacing */}
        <Box
          id="testimonials"
          sx={{
            py: { xs: 6, md: 8 },
            bgcolor:
              theme.palette.mode === 'light'
                ? alpha(theme.palette.primary.main, 0.02)
                : alpha(theme.palette.primary.dark, 0.02),
            position: 'relative',
            mt: 0,
            borderTop: `1px solid ${alpha(
              theme.palette.divider,
              0.1
            )}`,
            zIndex: 1,
          }}
        >
          <Container maxWidth="lg">
            <Typography
              variant="h3"
              align="center"
              fontWeight="bold"
              sx={{
                mb: { xs: 3, md: 4 },
                background: `linear-gradient(120deg, ${theme.palette.primary.main}, ${theme.palette.secondary.main})`,
                WebkitBackgroundClip: 'text',
                WebkitTextFillColor: 'transparent',
                position: 'relative',
                display: 'inline-block',
                left: '50%',
                transform: 'translateX(-50%)',
                '&::after': {
                  content: '""',
                  position: 'absolute',
                  bottom: -8,
                  left: 0,
                  width: '100%',
                  height: 3,
                  background: `linear-gradient(90deg, ${theme.palette.primary.main}, ${theme.palette.secondary.main})`,
                  borderRadius: 2,
                  transform: 'scaleX(1)',
                  transformOrigin: 'left',
                  transition: 'transform 1.5s ease-out',
                },
              }}
            >
              What Our Users Say
            </Typography>

            <Typography
              variant="h6"
              align="center"
              color="text.secondary"
              sx={{ mb: 6, maxWidth: 600, mx: 'auto' }}
            >
              Trusted by investment professionals worldwide to deliver
              accurate insights and powerful analytics
            </Typography>

            <Grid container spacing={3} sx={{ mb: 4 }}>
              {testimonials.map((testimonial, index) => (
                <Grid item xs={12} md={4} key={index}>
                  <Card
                    elevation={0}
                    sx={{
                      height: '100%',
                      bgcolor: alpha(
                        theme.palette.background.paper,
                        theme.palette.mode === 'light' ? 0.6 : 0.4
                      ),
                      backdropFilter: 'blur(8px)',
                      border: `1px solid ${alpha(
                        theme.palette.divider,
                        theme.palette.mode === 'light' ? 0.1 : 0.2
                      )}`,
                      borderRadius: 3,
                      transition:
                        'all 0.3s cubic-bezier(0.4, 0, 0.2, 1)',
                      '&:hover': {
                        transform: 'translateY(-8px)',
                        bgcolor: theme.palette.background.paper,
                        boxShadow: theme.shadows[8],
                        '& .testimonial-avatar': {
                          transform: 'scale(1.1)',
                        },
                      },
                    }}
                  >
                    <CardContent sx={{ p: 3 }}>
                      <Box sx={{ mb: 2 }}>
                        <Rating
                          value={testimonial.rating}
                          readOnly
                          size="small"
                          sx={{
                            color: theme.palette.primary.main,
                            opacity: 0.9,
                          }}
                        />
                      </Box>

                      <Typography
                        variant="body1"
                        sx={{
                          mb: 3,
                          color: alpha(
                            theme.palette.text.primary,
                            0.87
                          ),
                          lineHeight: 1.6,
                          fontStyle: 'italic',
                        }}
                      >
                        "{testimonial.comment}"
                      </Typography>

                      <Stack direction="row" spacing={1} sx={{ mb: 3 }}>
                        {testimonial.tags.map((tag) => (
                          <Chip
                            key={tag}
                            label={tag}
                            size="small"
                            sx={{
                              bgcolor: alpha(
                                theme.palette.primary.main,
                                0.1
                              ),
                              color: theme.palette.primary.main,
                              fontWeight: 500,
                            }}
                          />
                        ))}
                      </Stack>

                      <Stack
                        direction="row"
                        spacing={2}
                        alignItems="center"
                      >
                        <Avatar
                          className="testimonial-avatar"
                          sx={{
                            bgcolor: theme.palette.primary.main,
                            width: 48,
                            height: 48,
                            fontSize: '1.2rem',
                            fontWeight: 500,
                            transition:
                              'transform 0.3s cubic-bezier(0.4, 0, 0.2, 1)',
                          }}
                        >
                          {testimonial.name[0]}
                        </Avatar>
                        <Box>
                          <Typography variant="subtitle1" fontWeight="bold">
                            {testimonial.name}
                          </Typography>
                          <Typography
                            variant="body2"
                            color="text.secondary"
                            sx={{ mb: 0.5 }}
                          >
                            {testimonial.role}
                          </Typography>
                          <Typography
                            variant="caption"
                            color="text.secondary"
                            sx={{
                              display: 'flex',
                              alignItems: 'center',
                              gap: 0.5,
                            }}
                          >
                            <Box
                              component="span"
                              sx={{
                                width: 6,
                                height: 6,
                                borderRadius: '50%',
                                bgcolor: theme.palette.success.main,
                              }}
                            />
                            {testimonial.company}
                          </Typography>
                        </Box>
                      </Stack>
                    </CardContent>
                  </Card>
                </Grid>
              ))}
            </Grid>

            <Box
              sx={{
                display: 'flex',
                justifyContent: 'center',
                gap: 2,
              }}
            >
              <Button
                variant="outlined"
                size="large"
                startIcon={<Star />}
                sx={{
                  borderRadius: 2,
                  py: 1,
                  px: 3,
                }}
              >
                View All Reviews
              </Button>
            </Box>
          </Container>
        </Box>

        {/* Footer with improved spacing */}
        <Box
          component="footer"
          sx={{
            py: 4,
            mt: 'auto',
            position: 'relative',
            marginBottom: 0,
            borderTop: `1px solid ${alpha(theme.palette.divider, 0.1)}`,
          }}
        >
          <Container
            maxWidth="lg"
            sx={{
              px: { xs: 4, sm: 6, md: 8 },
            }}
          >
            <Stack
              direction="row"
              justifyContent="center"
              alignItems="center"
              spacing={2}
            >
              {socialLinks.map(({ icon: Icon, label, url }) => (
                <Tooltip key={label} title={label}>
                  <IconButton
                    href={url}
                    target="_blank"
                    rel="noopener noreferrer"
                    sx={{
                      color: 'text.secondary',
                      '&:hover': {
                        color: 'primary.main',
                      },
                    }}
                  >
                    <Icon />
                  </IconButton>
                </Tooltip>
              ))}
            </Stack>
            <Typography
              variant="body2"
              color="text.secondary"
              align="center"
              sx={{ mt: 2 }}
            >
              © {new Date().getFullYear()} Portfolio Analytics. All rights
              reserved.
            </Typography>
          </Container>
        </Box>
      </Box>

      {/* Loading Progress */}
      {showProgress && (
        <Box
          sx={{
            position: 'fixed',
            top: 0,
            left: 0,
            right: 0,
            zIndex: 9999,
          }}
        >
          <LinearProgress />
        </Box>
      )}

      {/* Tutorial Dialog */}
      {!initialRender && (
        <Tutorial 
          open={tutorialState.isOpen}
          currentStep={tutorialState.currentStep}
          onStepChange={handleTutorialStepChange}
          onClose={handleTutorialClose}
          isCompleted={tutorialState.isCompleted}
        />
      )}

      {/* Backdrop for SpeedDial */}
      <Backdrop open={openSpeedDial} />

      {/* Scroll To Top */}
      <ScrollToTop />
    </Box>
  )

  return isMobile ? (
    <MobileLanding
      theme={theme}
      features={features}
      socialLinks={socialLinks}
      handleStartWithTutorial={handleStartWithTutorial}
      handleSkipTutorial={handleSkipTutorial}
      handleSpeedDialAction={handleSpeedDialAction}
      showTutorial={tutorialState.isOpen}
      handleTutorialClose={handleTutorialClose}
      openSpeedDial={openSpeedDial}
      setOpenSpeedDial={setOpenSpeedDial}
    />
  ) : (
    <DesktopLanding />
  )
}

export default memo(LandingPage) // Memoize the component