* {
    margin:0;
    padding: 0;
    box-sizing: border-box;
}
body {
    height: 100vh;
    display:flex;
    background: rgb(67, 67, 143);
}
.memory-game {
    width: 640px;
    height: 640px;
    margin: auto;
    display: flex;
    flex-wrap: wrap;
    perspective: 1000px;
}
.memory-card {
    width: calc(18% - 10px);
    height: calc(20% - 10px);
    margin: 10px;
    position: relative;
    transform-style: preserve-3d;
    transform: scale(1);
    transition: transform .5s;
}
.memory-card:active {
    transform: scale(0.97);
    transition: transform .2s;
}
.memory-card.flip {
     transform: rotateY(180deg);
}
.front-face, .back-face{
    width: 100%;
    height: 100%;
    position: absolute;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 1px 1px 1px 1px;
    background: #df950e;
    backface-visibility: hidden;
}
.front-face {
    transform: rotateY(180deg);
}
.matched {
    pointer-events: none; /* Это предотвращает клики на совпавших карточках */
}