/* spinner loader =================== */

.spinner-loader {
    border-top: 4px solid var(--app_primary_color);
    border-radius: 50%;
    width: 48px;
    height: 48px;
    animation: spin 0.85s linear infinite;
    margin: 20px auto; /* Center */
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}