/* Semi‑transparent background overlay */
.overlay {
    top: 0;
    left: 0;
    height: 100%;
    background: rgba(0, 0, 0, 0.0); /* semi-transparent black */
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
}

/* Spinner */
.spinner {
    width: 22px;
    height: 22px;
    border: 4px solid #075270;
    border-top-color: white;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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