body {
    font-family: Arial, sans-serif;
    margin: 20px;
    padding-bottom: 50px;
}

.ticket-grid {
    display: grid;
    grid-template-columns: repeat(20, 1fr);
    gap: 5px;
    margin: 20px 0;
}

.ticket-number {
    border: 1px solid #ccc;
    padding: 10px 5px;
    text-align: center;
    cursor: pointer;
    background-color: #f8f9fa;
    transition: background-color 0.3s;
}

.ticket-number:hover:not(.taken) {
    background-color: #e2e6ea;
}

.ticket-number.selected {
    background-color: #0d6efd;
    color: white;
}

.ticket-number.taken {
    background-color: #dc3545;
    color: white;
    cursor: not-allowed;
    opacity: 0.7;
}

#selectedNumbers {
    background-color: #f8f9fa;
    padding: 10px;
    border-radius: 5px;
    margin-bottom: 20px;
}

@media (max-width: 768px) {
    .ticket-grid {
        grid-template-columns: repeat(10, 1fr);
    }
}