.kir-jfb-save-progress-overlay {
    position: fixed;
    inset: 0;
    z-index: 2147483647;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 16px;
    box-sizing: border-box;
    padding: 24px;
    margin: 0;
    background: rgba(0, 0, 0, 0.6);
    color: #fff;
    font-family: inherit;
    text-align: center;
    pointer-events: auto;
    touch-action: none;
    overscroll-behavior: contain;
}

.kir-jfb-save-progress-overlay[hidden] {
    display: none !important;
}

.kir-jfb-save-progress-overlay:focus {
    outline: none;
}

.kir-jfb-save-progress-overlay__spinner {
    display: block;
    flex: 0 0 auto;
    box-sizing: border-box;
    width: 48px;
    height: 48px;
    border: 4px solid rgba(255, 255, 255, 0.25);
    border-top-color: #fff;
    border-radius: 50%;
    animation: kir-jfb-save-progress-overlay-spin 0.8s linear infinite;
}

.kir-jfb-save-progress-overlay__message {
    margin: 0;
    color: inherit;
    font-size: 16px;
    line-height: 1.5;
}

@keyframes kir-jfb-save-progress-overlay-spin {
    to { transform: rotate(360deg); }
}

@media (prefers-reduced-motion: reduce) {
    .kir-jfb-save-progress-overlay__spinner {
        animation: none;
    }
}