.result-box.show{display:block;animation:slideIn .5s ease}.calculator-input{width:100%;padding:12px;margin:10px 0;border:2px solid white;border-radius:8px;font-size:16px;box-sizing:border-box}.game-card.matched{background:#48c774;color:white}.hidden-content.revealed{display:block;animation:slideIn .5s ease}