document.querySelectorAll(".door, .fluegel").forEach(elem => {
  elem.addEventListener("click", () => {
    const day = elem.dataset.day;
    const openfield = document.querySelector(`.openfield[data-day="${day}"]`);

    // === EINZELTÜR-LOGIK ===
    if (elem.classList.contains("door")) {
      if (elem.classList.contains("open")) {
        console.log(`Tür ${day} erneut geöffnet`);
        return;
      }

      elem.classList.add("open");
      if (openfield) openfield.classList.add("open");
      return;
    }

    // === DOPPELFLÜGEL-LOGIK ===
    if (elem.classList.contains("fluegel")) {
      // bereits geöffnet?
      const alreadyOpen = document.querySelectorAll(`.fluegel[data-day="${day}"].rota`);
      if (alreadyOpen.length === 2) {
        console.log(`Flügeltür ${day} erneut geöffnet`);
        return;
      }

      const left = document.querySelector(`.fluegel.left[data-day="${day}"]`);
      const right = document.querySelector(`.fluegel.right[data-day="${day}"]`);

      if (left) left.classList.add("rota");
      if (right) right.classList.add("rota");
      if (openfield) openfield.classList.add("open");
    }
  });
});