function positionAllDoors() {
  const cont = document.querySelector('.kalenderbild');
  const img  = cont?.querySelector('img');
  if (!cont || !img) return;

  const imgRect  = img.getBoundingClientRect();
  const contRect = cont.getBoundingClientRect();

  // Türchen, Flügel und Felder positionieren
  document.querySelectorAll('[data-day]').forEach(el => {
    const day      = el.dataset.day;
    const topPct   = parseFloat(el.dataset.top)   || 0;
    const leftPct  = parseFloat(el.dataset.left)  || 0;
    const widthPct = parseFloat(el.dataset.width) || 10;

    const fullWidth  = imgRect.width * (widthPct / 100);
    const fullTop    = (imgRect.top - contRect.top + imgRect.height * (topPct / 100)) + 'px';
    const fullLeft   = (imgRect.width * (leftPct / 100) + (contRect.width - imgRect.width) / 2) + 'px';

    el.style.position = 'absolute';
    el.style.top      = fullTop;
    el.style.left     = fullLeft;

    if (el.classList.contains('hinge-left') || el.classList.contains('hinge-right')) {
      el.style.width  = fullWidth + 'px';
      el.style.height = fullWidth + 'px';

    } else if (el.classList.contains('fluegel')) {
      el.style.width  = fullWidth + 'px';
      el.style.height = (fullWidth * 2) + 'px';

    } else if (el.classList.contains('openfield')) {
      el.style.width  = fullWidth + 'px';
      el.style.height = (fullWidth * 2) + 'px';

    } else if (el.classList.contains('door-number')) {
      el.style.transform = 'translate(-50%, -50%)';
      el.style.left = '50%';
      el.style.top = '50%';
    }
  });
}

// Events
window.addEventListener('load', positionAllDoors);
window.addEventListener('resize', positionAllDoors);
window.addEventListener('orientationchange', () => {
  setTimeout(positionAllDoors, 300);
});
document.addEventListener('visibilitychange', () => {
  if (document.visibilityState === 'visible') {
    setTimeout(positionAllDoors, 200);
  }
});