document.addEventListener("DOMContentLoaded", function () {
    const announcement = document.createElement("div");
    announcement.style.textAlign = "center";
    announcement.style.color = "#e0e7ff";
    announcement.style.backgroundColor = "#0a1e44";
    announcement.style.fontSize = "16px";
    announcement.style.margin = "15px auto";
    announcement.style.padding = "14px 24px";
    announcement.style.borderRadius = "10px";
    announcement.style.maxWidth = "650px";
    announcement.style.boxShadow = "0 3px 10px rgba(0, 0, 0, 0.6)";
    announcement.style.fontFamily = "'Segoe UI', Tahoma, Geneva, Verdana, sans-serif";
    announcement.style.opacity = "0.95";
    announcement.innerHTML = 'If ads interfere with movie playback, try switching to full screen mode. <span style="color:#a3bffa; text-decoration: underline;">Ads usually do not appear in full screen.</span>';
    
    const title = document.querySelector("h1");
    title.parentNode.insertBefore(announcement, title.nextSibling);
  });