/**
 * Pausenplatz Memory Game Styles
 * file: /wp-content/plugins/pausenplatz/css/games/pausenplatz-memory-style.css
 */

.pausenplatz-memory-board {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 15px;
    max-width: 600px;
    margin: 20px auto;
}

.pausenplatz-memory-card {
    height: 120px;
    perspective: 1000px;
    cursor: pointer;
}

.pausenplatz-memory-card-inner {
    position: relative;
    width: 100%;
    height: 100%;
    transition: transform 0.5s;
    transform-style: preserve-3d;
}

.pausenplatz-memory-card.flipped .pausenplatz-memory-card-inner {
    transform: rotateY(180deg);
}

.pausenplatz-memory-card-front,
.pausenplatz-memory-card-back {
    position: absolute;
    width: 100%;
    height: 100%;
    -webkit-backface-visibility: hidden;
    backface-visibility: hidden;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.pausenplatz-memory-card-front {
    background-color: #3498db;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

.pausenplatz-memory-card-back {
    background-color: #fff;
    transform: rotateY(180deg);
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

.pausenplatz-memory-card-back i {
    font-size: 2em;
    color: #3498db;
}

.pausenplatz-memory-card.matched .pausenplatz-memory-card-back {
    background-color: #2ecc71;
}

.pausenplatz-memory-card.matched .pausenplatz-memory-card-back i {
    color: white;
}

.pausenplatz-memory-instructions {
    text-align: center;
    font-size: 1.2em;
    padding: 20px;
    margin: 20px 0;
    background-color: rgba(52, 152, 219, 0.1);
    border-radius: 5px;
}

/* Mobile responsiveness */
@media (max-width: 600px) {
    .pausenplatz-memory-board {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .pausenplatz-memory-card {
        height: 100px;
    }
}

@media (max-width: 400px) {
    .pausenplatz-memory-board {
        grid-template-columns: repeat(2, 1fr);
    }
}