#seating-area {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    margin-top: 20px;
}

.seat {
    font-size: 24px;
    text-align: center;
    width: 40px;
    height: 40px;
    line-height: 40px;
    border: 1px solid #ccc;
    cursor: pointer;
    opacity: 0.5;
}

.seat.selected {
    opacity: 1;
}

#result-message.success {
    color: green;
}

#result-message.error {
    color: red;
}