.loading-indicator {
    display: none;
    text-align: center;
    padding: 20px;
    margin: 20px 0;
}
.loading-indicator.visible {
    display: block;
}
.loading-spinner {
    display: inline-block;
    width: 40px;
    height: 40px;
    border: 3px solid #f3f3f3;
    border-top: 3px solid #ff5ca1;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}
@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}