* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: sans-serif;
}

body {
    background-color: rgb(26, 88, 88);
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 20px;
}

.container {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
    background-color: rgba(255, 255, 255, 0.466);
    padding: 5%;
    gap: 20px;
    border-radius: 20px;
    z-index: 1;
    width: 100%;
    max-width: 500px;
}

h2 {
    text-transform: uppercase;
    font-size: 2em;
    width: 100%;
    text-align: center;
    white-space: nowrap;
    color: white;
    letter-spacing: 0.06em;
    margin-bottom: 10px;
}

.btnReset {
    position: relative;
    width: 100%;
    max-width: 200px;
    padding: 12px 20px;
    background-color: red;
    color: white;
    border: none;
    outline: none;
    cursor: pointer;
    font-size: 1em;
    font-weight: 700;
    border-radius: 10px;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    transition: 0.5s;
    text-align: center;
}

.btnReset:hover {
    background-color: rgb(255, 255, 255);
    color: red;
}

.content {
    width: 100%;
    max-width: 430px;
    height: auto;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 10px;
    aspect-ratio: 1; /* Pour garder le contenu sous forme de carré */
    transform-style: preserve-3d;
    perspective: 500px;
}

.item {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    aspect-ratio: 1; /* Les éléments restent carrés */
    transform-style: preserve-3d;
    transition: 0.5s ease-in-out;
    font-size: calc(1.5em + 1vw); /* Taille du texte adaptative */
    background-color: rgb(255, 255, 255);
    cursor: pointer;
    transform: rotateY(0deg);
}

.item::after {
    content: '';
    position: absolute;
    inset: 0;
    background-color: rgb(35, 116, 116);
    transition: 0.25s;
    transform: rotateY(0deg);
    backface-visibility: hidden;
}

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

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

.boxMatch {
    animation: match 0.8s forwards;
}

@keyframes match {
    0% {
        background-color: white;
        transform: scale(1);
    }
    50% {
        background-color: limegreen;
        transform: scale(1.05);
    }
    100% {
        background-color: lightgreen;
        transform: scale(1);
    }
}

.victory-message {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background-color: white;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.5);
    text-align: center;
    z-index: 100;
    display: none;
    font-size: 1.3em;
}

@keyframes unmatch {
    0% {
        transform: rotateY(0deg) translateX(0);
    }
    25% {
        transform: rotateY(0deg) translateX(3px);
    }
    50% {
        background-color: orangered;
        transform: rotateY(0deg) translateX(-3px);
    }
    75% {
        transform: rotateY(0deg) translateX(3px);
    }
    100% {
        background-color: red;
        transform: rotateY(0deg) translateX(0);
    }
}

.unmatch {
    animation: unmatch 0.5s ease-in-out;
}

img {
    width: 30%;
    height: 30%;
    object-fit: cover;
}