def fixed_length_chunking(text, chunk_size=500, overlap=50):
    """Split text into fixed-length chunks."""
    chunks = []
    start = 0
    
    while start < len(text):
        end = start + chunk_size
        chunk = text[start:end].strip()
        if chunk:
            chunks.append(chunk)
        start = end - overlap if end < len(text) else end
    
    return chunks