.revision-sync-overlay {
    display: none;
    position: fixed;
    inset: 0;
    z-index: 99999;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    padding: 24px;
    background: rgba(0, 0, 0, 0.68);
    cursor: wait;
    text-align: center;
}

.revision-sync-overlay.is-visible {
    display: flex;
}

.revision-sync-overlay__spinner {
    width: 64px;
    height: 64px;
    margin-bottom: 22px;
    border: 7px solid rgba(255, 255, 255, 0.3);
    border-top-color: #fff;
    border-radius: 50%;
    animation: revision-sync-spin 0.85s linear infinite;
}

.revision-sync-overlay__title {
    color: #fff;
    font-size: 1.35em;
    font-weight: 600;
}

.revision-sync-overlay__message {
    max-width: 520px;
    margin-top: 9px;
    color: #ddd;
    font-size: 0.95em;
}

body.revision-sync-busy {
    overflow: hidden;
}

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

@media (prefers-reduced-motion: reduce) {
    .revision-sync-overlay__spinner {
        animation-duration: 1.6s;
    }
}