/* Оверлей загрузки обновления PWA — пользователь видит прогресс в % */
#pwa-update-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.75);
    z-index: 99999;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    color: #fff;
    font-family: inherit;
}
#pwa-update-overlay.show {
    display: flex;
}
#pwa-update-overlay .pwa-update-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1rem;
}
#pwa-update-overlay .pwa-update-percent {
    font-size: 2.5rem;
    font-weight: 700;
    color: #3b82f6;
    margin-bottom: 0.5rem;
}
#pwa-update-overlay .pwa-update-bar {
    width: 80%;
    max-width: 280px;
    height: 8px;
    background: rgba(255,255,255,0.3);
    border-radius: 4px;
    overflow: hidden;
    margin-bottom: 0.5rem;
}
#pwa-update-overlay .pwa-update-bar-fill {
    height: 100%;
    width: 0%;
    background: #3b82f6;
    border-radius: 4px;
    transition: width 0.2s ease;
}