#adventkalender{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}@media (min-width:481px){#adventkalender{grid-template-columns:repeat(3,1fr);gap:15px}}@media (min-width:769px){#adventkalender{grid-template-columns:repeat(4,1fr);gap:20px}}.kalender-tuer{position:relative;width:100%;padding-top:100%;background-color:#ff6310;border-radius:20px;overflow:hidden;cursor:pointer;transition:transform 0.3s ease,box-shadow 0.3s ease;box-shadow:0 4px 6px rgb(0 0 0 / .1)}.kalender-tuer:hover{transform:scale(1.05);box-shadow:0 6px 10px rgb(0 0 0 / .15)}.kalender-tuer a{position:absolute;top:0;left:0;right:0;bottom:0;display:block;background-size:cover;background-position:center;background-repeat:no-repeat;text-decoration:none}.kalender-tuer img{width:100%;height:100%;object-fit:cover}.kalender-tuer .tuer-vorschau{position:absolute;top:0;left:0;right:0;bottom:0;display:flex;align-items:center;justify-content:center;font-size:1.5rem;color:#000;font-weight:700;background-color:#ff6310;z-index:1;transition:opacity 0.3s ease}.kalender-tuer.geoeffnet .tuer-vorschau{opacity:0}.kalender-tuer .tuer-inhalt{position:absolute;top:0;left:0;width:100%;height:100%;display:flex;align-items:center;justify-content:center;background-color:#fff;z-index:2;display:none}.kalender-tuer.geoeffnet .tuer-inhalt{display:flex}.fehlermeldung{position:fixed;top:50%;left:50%;transform:translate(-50%,-50%);padding:20px;background-color:rgb(22 22 22 / .7);color:#fff;font-size:1.5rem;font-weight:400;border-radius:10px;z-index:9999}.fehlermeldung-schliessen{padding:5px 10px;cursor:pointer;color:#fff;font-size:1.5rem;background-color:#000}