.global-spinner {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.4);
    z-index: 10000000;
    text-align: center;
}

.spinner {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 40px;
    height: 40px;
    margin-top: -20px;
    margin-left: -20px;
    border: 4px solid #ddd;
    border-top: 4px solid #0072bc;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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