.app-saving-overlay {
    position: fixed;
    inset: 0;
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 0, 0, 0.45);
    backdrop-filter: blur(2px);
    animation: app-saving-fade-in 0.15s ease;
}

.app-saving-box {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    padding: 2rem 2.5rem;
    background: #fff;
    border-radius: 1rem;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
}

.app-saving-spinner {
    width: 2.5rem;
    height: 2.5rem;
    color: #dc3545;
}

.app-saving-message {
    font-size: 1.1rem;
    font-weight: 600;
    color: #212529;
}

@keyframes app-saving-fade-in {
    from { opacity: 0; }
    to { opacity: 1; }
}