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import streamlit as st
from landing_page import display_landing_page
from about_page import display_about_page
from css_styles import load_css
from hydrogen_analyzer import run_analyzer
# Main application function
def main():
# Set page config
st.set_page_config(
page_title="EcoLytics: Intelligent Hydrogen Economics Platform",
page_icon="⚡",
layout="wide",
initial_sidebar_state="expanded"
)
# Load custom CSS
load_css()
# Initialize session state for navigation
if "page" not in st.session_state:
st.session_state.page = "Home"
# Sidebar navigation
with st.sidebar:
st.markdown("# EcoLytics")
st.markdown("## Hydrogen Economics Platform")
st.markdown("---")
if st.button("Home", use_container_width=True):
st.session_state.page = "Home"
st.experimental_rerun()
if st.button("Hydrogen Analyzer", use_container_width=True):
st.session_state.page = "Hydrogen Analyzer"
st.experimental_rerun()
if st.button("About", use_container_width=True):
st.session_state.page = "About"
st.experimental_rerun()
st.markdown("---")
st.markdown("### EcoLytics")
st.markdown("Version 1.0")
# Display current page
if st.session_state.page == "Home":
display_landing_page()
elif st.session_state.page == "Hydrogen Analyzer":
run_analyzer()
else:
display_about_page()
if __name__ == "__main__":
main()
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