/* Estilos CSS */

body {
    font-family: Arial, sans-serif;
    text-align: center;
    background-color: #f0f0f0;
}

h1 {
    margin-top: 20px;
    color: #333;
}

#level {
    margin-bottom: 20px;
    font-size: 1.2em;
    color: #555;
}

.game-board {
    display: grid;
    gap: 10px;
    justify-content: center;
    margin: 0 auto;
}

.card {
    width: 300px;
    height: 300px;
    align-self: center;
    justify-self: center;
    background-color: #ffffff;
    border: 2px solid #333;
    border-radius: 8px;
    cursor: pointer;
    position: relative;
    transform: perspective(600px) rotateY(0deg);
    transform-style: preserve-3d;
    transition: transform 0.5s;
}

.card.flip {
    transform: perspective(600px) rotateY(180deg);
}

.card .front, .card .back {
    position: absolute;
    width: 100%;
    height: 100%;
    backface-visibility: hidden;
    border-radius: 8px;
}

.card .front {
    background-color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    transform: rotateY(180deg);
}

.card .front img {
    width: 100%;
    height: 100%;
    object-fit: cover; /* Asegura que la imagen cubra todo el área de la carta */
    border-radius: 4px;
}

.card .back {
    background-color: #333;
}

button {
    margin-top: 20px;
    padding: 10px 20px;
    font-size: 1em;
    cursor: pointer;
    border: none;
    border-radius: 5px;
    background-color: #333;
    color: #fff;
    transition: background-color 0.3s;
}

button:hover {
    background-color: #555;
}

.hidden {
    display: none;
}

/* Responsive Design */
@media (max-width: 600px) {
    .card {
        width: 80px;
        height: 80px;
    }

    .game-board {
        gap: 8px;
    }
}