import importlib.resources

def get_combined_css(component: str) -> str:

template_dir = importlib.resources.files(__package__)

base_css = (template_dir / "_shared_assets" / "base.css").read_text(encoding="utf-8")

if component == "flamegraph":

component_css = (

template_dir / "_flamegraph_assets" / "flamegraph.css"

).read_text(encoding="utf-8")

elif component == "heatmap":

component_css = (template_dir / "_heatmap_assets" / "heatmap.css").read_text(

encoding="utf-8"

)

else:

raise ValueError(

f"Unknown component: {component}. Expected 'flamegraph' or 'heatmap'."

)

return f"{base_css}\n\n{component_css}"