body {
    font-family: Arial, sans-serif;
    background-color: #f8f0f0;
    text-align: center;
}

.game-container {
    max-width: 600px;
    margin: 0 auto;
    padding: 20px;
    background-color: #ffffff;
    border-radius: 10px;
    box-shadow: 0 0 15px rgba(0, 0, 0, 0.1);
}

h1 {
    color: #e74c3c;
}

.card-container {
    display: flex;
    justify-content: space-around;
    margin: 20px 0;
}

.card {
    width: 150px;
    height: 150px;
    background-color: #ecf0f1;
    border-radius: 10px;
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.message {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.7);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    opacity: 0;
    transition: opacity 0.3s ease-in-out;
}

button {
    margin-top: 20px;
    padding: 10px 20px;
    background-color: #e74c3c;
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
}

button:hover {
    background-color: #c0392b;
}