#identificar {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    font-family: 'Arial', sans-serif;
    background-color: #f0f0f0;
}

.game-container {
    text-align: center;
    background: #fff;
    padding: 30px;
    border-radius: 15px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

h1 {
    color: #333;
}

.p.impar p {
    color: #666;
    max-width: 400px;
    margin: 10px auto;
}

.grid-container {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    grid-gap: 15px;
    margin-top: 20px;
}

.grid-item {
    width: 80px;
    height: 80px;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 2em;
    font-weight: bold;
    color: #fff;
    border-radius: 10px;
    cursor: pointer;
    transition: transform 0.2s, background-color 0.2s;
    user-select: none;
}

.is-letter {
    background-color: #4CAF50; /* Verde */
}

.is-symbol {
    background-color: #4CAF50; /* Rojo */
}

.grid-item:hover {
    transform: scale(1.05);
}

#startButton {
    padding: 10px 20px;
    font-size: 1.2em;
    margin-top: 20px;
    cursor: pointer;
    border: none;
    border-radius: 5px;
    background-color: #2196F3;
    color: white;
    transition: background-color 0.2s;
}

#startButton:hover {
    background-color: #0b7dda;
}

.feedback {
    margin-top: 15px;
    font-size: 1.5em;
    font-weight: bold;
}

.feedback.correct {
    color: #4CAF50;
}

.feedback.incorrect {
    color: #f44336;
}