body{
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background: #fc07bd;
    user-select: none;
}

.container {
    position: relative;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 30px;
    background: linear-gradient(325deg,
    #03001e 0%, 
    #7303c0 30%,
    #ec38bc 70%,
    #fdeff9 100%);

    padding: 40px 60px;
}

h2{
    font-size: 3em;
    color: #fff;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.reset{
    padding: 15px 20px;
    width: 100%;
    color: #000;
    background-color: #fff;
    border: none;
    font-size: 1.5em;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    cursor: pointer;
    font-weight: 600;
}

.reset:focus{
    color: #ec38bc;
    background-color: #262809;
}

.game {
  width: 430px;
  height: 430px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  transform-style: preserve-3d;
  perspective: 500px;
}

.item{
    position: relative;
    width: 100px;
    height: 100px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: #fff;
    
    font-size: 3em;
    transform: rotateY(180deg);
    transition: 0.25s;
}

.item::after {
  content: "";
  position: absolute;
  inset: 0;
  background: #404040;
  /* opacity: 0.85; */
  transition: 0.25s;
  transform: rotateY(0deg);
  backface-visibility: hidden;
}

.item.boxOpen{
    transform: rotateY(0deg);

}

.boxOpen::after,
.boxMatch::after {
    transform: rotateY(180deg);
}