/* Overlay for the calendar */
.calendar-overlay {
    position: relative;
}

.calendar-overlay::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(255, 255, 255, 0.8); /* Semi-transparent white */
    z-index: 10;
}

.calendar-overlay::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 40px;
    height: 40px;
    margin-top: -20px;
    margin-left: -20px;
    border: 5px solid #ccc; /* Light gray border */
    border-top-color: #1d70b8; /* Spinner color */
    border-radius: 50%;
    animation: spin 1s linear infinite;
    z-index: 11;
}

/* Spinner animation */
@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}