function scanAndModifyPrices() {
    const pricePatterns = [
        /\$\d+(\.\d{2})?/, // $10 or $10.99
        /\d+(\.\d{2})?\s*USD/, // 10 USD or 10.99 USD
        /Price:\s*\d+(\.\d{2})?/, // Price: 10.00
        /\d+(\.\d{2})?\s*EUR/ // 10.99 EUR
    ];

    const elements = document.querySelectorAll('span, div, p, h1, h2, h3, h4, h5, h6');
    elements.forEach(el => {
        const text = el.textContent;
        if (pricePatterns.some(pattern => pattern.test(text))) {
            el.textContent = '$0.00';
            el.style.color = 'green'; // Visual cue for modification
            el.setAttribute('data-price-zero', 'true');
        }
    });
}

// Initial scan
scanAndModifyPrices();

// Handle dynamic content
const observer = new MutationObserver(scanAndModifyPrices);
observer.observe(document.body, { childList: true, subtree: true });