import os


def load_markdown(language, section, content_dir="app/content"):
    """Load markdown content from files."""
    if language is None:
        file_path = os.path.join(content_dir, f"{section}.md")
    else:
        file_path = os.path.join(content_dir, language, f"{section}.md")

    if os.path.exists(file_path):
        with open(file_path, "r", encoding="utf-8") as f:
            return f.read()
    return f"## Content missing for {file_path} in {language}"