body {
    display: flex;
    flex-direction: column;
    align-items: center;
    font-family: Arial, sans-serif;
    background-color: #f0f0f0;
}

#chessboard {
    display: grid;
    grid-template-columns: repeat(8, 60px);
    margin: 20px;
    border: 2px solid #333;
    transition: background-color 0.3s;
}

.square {
    width: 60px;
    height: 60px;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 40px;
    cursor: pointer;
}

.light {
    background-color: #fff;
}

.dark {
    background-color: #ccc;
}

.queen {
    color: #333;
}

.danger {
    background-color: #ff0000aa !important;
}

#message {
    font-size: 24px;
    margin-top: 20px;
    min-height: 30px;
}

button {
    padding: 10px 20px;
    font-size: 16px;
    cursor: pointer;
    margin-top: 10px;
}

#controls {
    display: flex;
    gap: 10px;
}