* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

.container {
    max-width: 1200px;
    margin: 20px auto;
    padding: 20px;
}

h1 {
    text-align: center;
    margin-bottom: 20px;
}

.score-panel {
    text-align: center;
    margin-bottom: 20px;
}

.score-panel > * {
    margin: 0 10px;
}

.game-board {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 10px;
    max-width: 1000px;
    margin: 0 auto;
}

.card {
    aspect-ratio: 3/4;
    background-color: #2196F3;
    border-radius: 5px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 10px;
    text-align: center;
    font-size: 14px;
    color: white;
    transition: transform 0.3s;
    transform-style: preserve-3d;
    position: relative;
}

.card-front,
.card-back {
    position: absolute;
    width: 100%;
    height: 100%;
    backface-visibility: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 10px;
}

.card-front {
    background-color: #2196F3;
    font-size: 32px;
    font-weight: bold;
    border-radius: 5px;
}

.card-back {
    background-color: #4CAF50;
    transform: rotateY(180deg);
    border-radius: 5px;
    font-size: 14px;
    padding: 15px;
    word-wrap: break-word;
    overflow-wrap: break-word;
}

.card.flipped {
    transform: rotateY(180deg);
}

/* Ajustar el tamaño del texto según el tipo de carta */
.card[data-type="number"] .card-front {
    font-size: 28px;
}

.card[data-type="number"] .card-back {
    font-size: 28px;
    font-weight: bold;
}

.card[data-type="text"] .card-front {
    font-size: 24px;
}

.card[data-type="text"] .card-back {
    font-size: 12px;
    padding: 15px;
    word-wrap: break-word;
    overflow-wrap: break-word;
}

.match-popup {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background-color: rgba(76, 175, 80, 0.9);
    color: white;
    padding: 20px;
    border-radius: 10px;
    font-size: 18px;
    z-index: 1000;
    animation: fadeInOut 2s ease-in-out;
}

@keyframes fadeInOut {
    0% { opacity: 0; }
    15% { opacity: 1; }
    85% { opacity: 1; }
    100% { opacity: 0; }
}

.card.error {
    transform: rotateY(180deg);
}

.card.error .card-back {
    background-color: #f44336; /* Color rojo para indicar error */
    animation: shake 0.5s;
}

@keyframes shake {
    0%, 100% { transform: rotateY(180deg) translateX(0); }
    20% { transform: rotateY(180deg) translateX(-10px); }
    40% { transform: rotateY(180deg) translateX(10px); }
    60% { transform: rotateY(180deg) translateX(-10px); }
    80% { transform: rotateY(180deg) translateX(10px); }
}

.group-scores {
    display: flex;
    justify-content: center;
    gap: 40px;
    margin-bottom: 20px;
}

.group-score {
    background-color: #fff;
    padding: 15px;
    border-radius: 8px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

.group-score h2 {
    margin: 0 0 10px 0;
    color: #2196F3;
}

.current-turn {
    font-size: 1.2em;
    font-weight: bold;
    color: #2196F3;
    margin: 10px 0;
}

.group-score.active {
    border: 2px solid #2196F3;
}

.match-popup.already-matched {
    background-color: rgba(255, 152, 0, 0.9); /* Color naranja para advertencia */
}