body{
    display: flex;
    flex-direction: column;
    gap: 5;
    justify-content: center;
    align-items: center;
}

#btnBooking{
    padding: 15px;
    cursor: pointer;
    background-color: blue;
    color: white;
    border:  none;
    border-radius: 12px;
}

#btnBooking:hover {
    opacity: 0.8;
}

.loading {
      opacity: 0.6;
      cursor: not-allowed;
}
.spinner {
    display: inline-block;
    width: 16px;
    height: 16px;
    border: 2px solid #fff;
    border-top: 2px solid #3498db;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-left: 8px;
    vertical-align: middle;
}
@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}