function synkRAAD1() {
  const audios = Array.from(document.querySelectorAll("audio"))
    .filter(a => {
      try {
        const url = new URL(a.currentSrc || a.querySelector("source")?.src || "", window.location.href);
        return url.pathname.toLowerCase().endsWith(".mp3") && url.pathname.toLowerCase().includes("raad1");
      } catch {
        return false;
      }
    });

  const LOOP_MINUTES = 60;
  const LOOP_SECONDS = LOOP_MINUTES * 60;

  function syncToClock(audio) {
    const now = new Date();
    const secOfHour = now.getMinutes() * 60 + now.getSeconds();
    const t = secOfHour % LOOP_SECONDS;
    if (!isNaN(audio.duration)) {
      audio.currentTime = Math.min(t, audio.duration - 1);
    }
  }

  audios.forEach(audio => {
    audio.preload = "auto";
    audio.load();

    audio.addEventListener("canplaythrough", () => syncToClock(audio), { once: true });

    audio.addEventListener("play", () => {
      syncToClock(audio);
    });
  });

  // keep in sync every 12s when paused
  setInterval(() => {
    const now = new Date();
    const secOfHour = now.getMinutes() * 60 + now.getSeconds();
    audios.forEach(audio => {
      if (audio.paused) {
        const t = secOfHour % LOOP_SECONDS;
        audio.currentTime = Math.min(t, audio.duration || LOOP_SECONDS - 1);
      }
    });
  }, 12000);
}

document.addEventListener("DOMContentLoaded", synkRAAD1);