/* Spinner */
.spinner {
    width: 40px;
    height: 40px;
    border: 3px solid rgba(0, 122, 255, 0.1);
    border-radius: 50%;
    border-top-color: var(--primary);
    animation: spin 1s ease-in-out infinite;
    margin: 0 auto;
}

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