Floating UI

class FloatingUIScreen extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      backgroundColor: const Color(0xFFF4F4F9),
      body: Stack(
        children: [
          ListView(
            padding: const EdgeInsets.all(24),
            children: [
              // Floating Content Card
              Container(
                margin: const EdgeInsets.only(bottom: 24),
                padding: const EdgeInsets.all(32),
                decoration: BoxDecoration(
                  color: Colors.white,
                  borderRadius: BorderRadius.circular(32), // Large radius
                  boxShadow: [
                    BoxShadow(
                      color: Colors.black.withOpacity(0.05),
                      blurRadius: 30,
                      offset: const Offset(0, 15),
                    )
                  ],
                ),
                child: Column(
                  crossAxisAlignment: CrossAxisAlignment.start,
                  children: const [
                    Text('Floating Card', style: TextStyle(fontSize: 24, fontWeight: FontWeight.bold)),
                    SizedBox(height: 12),
                    Text('This card hovers above the background.', style: TextStyle(color: Colors.grey)),
                  ],
                ),
              ),
            ],
          ),
          
          // Floating Bottom Nav
          Align(
            alignment: Alignment.bottomCenter,
            child: Container(
              margin: const EdgeInsets.only(bottom: 32),
              padding: const EdgeInsets.symmetric(horizontal: 32, vertical: 16),
              decoration: BoxDecoration(
                color: Colors.white,
                borderRadius: BorderRadius.circular(50), // Pill shape
                boxShadow: [
                  BoxShadow(color: Colors.black.withOpacity(0.1), blurRadius: 25, offset: const Offset(0, 10))
                ],
              ),
              child: Row(
                mainAxisSize: MainAxisSize.min, // Wrap content
                children: const [
                  Icon(Icons.home, color: Colors.blue),
                  SizedBox(width: 40),
                  Icon(Icons.search, color: Colors.grey),
                  SizedBox(width: 40),
                  Icon(Icons.person, color: Colors.grey),
                ],
              ),
            ),
          ),
        ],
      ),
    );
  }
}

const FloatingUIScreen = () => {
  return (
    <View style={{ flex: 1, backgroundColor: '#F4F4F9' }}>
      <ScrollView contentContainerStyle={{ padding: 24 }}>
        {/* Floating Card */}
        <View style={styles.floatingCard}>
          <Text style={{ fontSize: 24, fontWeight: 'bold', marginBottom: 12 }}>Floating Card</Text>
          <Text style={{ color: '#666' }}>This card hovers above the background, detached from all edges.</Text>
        </View>
      </ScrollView>

      {/* Floating Pill Nav */}
      <View style={styles.floatingNav}>
        <Text style={{ fontSize: 20 }}>🏠</Text>
        <Text style={{ fontSize: 20, opacity: 0.5 }}>🔍</Text>
        <Text style={{ fontSize: 20, opacity: 0.5 }}>👤</Text>
      </View>
    </View>
  );
};

const styles = StyleSheet.create({
  floatingCard: {
    backgroundColor: '#FFF',
    borderRadius: 32,
    padding: 32,
    marginBottom: 24,
    // iOS shadow
    shadowColor: '#000',
    shadowOffset: { width: 0, height: 15 },
    shadowOpacity: 0.05,
    shadowRadius: 30,
    // Android shadow
    elevation: 8,
  },
  floatingNav: {
    position: 'absolute',
    bottom: 40,
    alignSelf: 'center',
    flexDirection: 'row',
    backgroundColor: '#FFF',
    borderRadius: 50,
    paddingVertical: 16,
    paddingHorizontal: 32,
    gap: 40, // Needs RN 0.71+
    
    shadowColor: '#000',
    shadowOffset: { width: 0, height: 10 },
    shadowOpacity: 0.1,
    shadowRadius: 25,
    elevation: 10,
  }
});

@Composable
fun FloatingUIScreen() {
    Box(modifier = Modifier.fillMaxSize().background(Color(0xFFF4F4F9))) {
        Column(
            modifier = Modifier
                .fillMaxSize()
                .padding(24.dp)
        ) {
            // Floating Card
            Box(
                modifier = Modifier
                    .fillMaxWidth()
                    .shadow(15.dp, RoundedCornerShape(32.dp), spotColor = Color.Black.copy(alpha = 0.05f))
                    .background(Color.White, RoundedCornerShape(32.dp))
                    .padding(32.dp)
            ) {
                Column {
                    Text("Floating Card", fontSize = 24.sp, fontWeight = FontWeight.Bold)
                    Spacer(Modifier.height(12.dp))
                    Text("This card hovers above the background.", color = Color.Gray)
                }
            }
        }
        
        // Floating Pill Nav
        Row(
            modifier = Modifier
                .align(Alignment.BottomCenter)
                .padding(bottom = 32.dp)
                .shadow(20.dp, CircleShape, spotColor = Color.Black.copy(alpha = 0.1f))
                .background(Color.White, CircleShape)
                .padding(horizontal = 32.dp, vertical = 16.dp),
            horizontalArrangement = Arrangement.spacedBy(40.dp)
        ) {
            Icon(Icons.Default.Home, contentDescription = null, tint = Color.Blue)
            Icon(Icons.Default.Search, contentDescription = null, tint = Color.Gray)
            Icon(Icons.Default.Person, contentDescription = null, tint = Color.Gray)
        }
    }
}