.spinner-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(244, 246, 249, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    display: none;
}

.spinner-border {
    width: 3rem;
    height: 3rem;
    border-width: 0.3em;
    color: #00b4d8;
}