/**
 * Installed PWA (standalone): pull-down to refresh current page.
 */
html.kf-pwa-standalone .kf-pwa-ptr {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 14000;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    min-height: calc(44px + env(safe-area-inset-top, 0px));
    padding: calc(6px + env(safe-area-inset-top, 0px)) 16px 8px;
    box-sizing: border-box;
    transform: translate3d(0, calc(-100% + var(--kf-ptr-pull, 0px)), 0);
    transition: transform 0.22s cubic-bezier(0.22, 1, 0.36, 1);
    pointer-events: none;
    background: rgba(255, 255, 255, 0.94);
    border-bottom: 1px solid rgba(15, 23, 42, 0.08);
    box-shadow: 0 4px 14px rgba(15, 23, 42, 0.06);
    color: #0f766e;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.01em;
}

html.kf-pwa-standalone.kf-pwa-ptr--pulling .kf-pwa-ptr {
    transition: none;
}

html.kf-pwa-standalone.kf-pwa-ptr--refreshing .kf-pwa-ptr {
    transform: translate3d(0, 0, 0);
}

html.kf-pwa-standalone.kf-pwa-ptr--ready .kf-pwa-ptr {
    color: #047857;
}

.kf-pwa-ptr__spinner {
    width: 18px;
    height: 18px;
    border: 2px solid rgba(13, 148, 136, 0.22);
    border-top-color: #0d9488;
    border-radius: 50%;
    flex-shrink: 0;
    opacity: 0;
    transform: scale(0.85);
    transition: opacity 0.15s ease, transform 0.15s ease;
}

html.kf-pwa-standalone.kf-pwa-ptr--pulling .kf-pwa-ptr__spinner,
html.kf-pwa-standalone.kf-pwa-ptr--refreshing .kf-pwa-ptr__spinner {
    opacity: 1;
    transform: scale(1);
}

html.kf-pwa-standalone.kf-pwa-ptr--refreshing .kf-pwa-ptr__spinner {
    animation: kf-pwa-ptr-spin 0.75s linear infinite;
}

html.kf-pwa-standalone.kf-pwa-ptr--ready .kf-pwa-ptr__spinner {
    border-top-color: #059669;
}

@keyframes kf-pwa-ptr-spin {
    to {
        transform: rotate(360deg);
    }
}

@media (prefers-reduced-motion: reduce) {
    html.kf-pwa-standalone .kf-pwa-ptr {
        transition: none;
    }

    html.kf-pwa-standalone.kf-pwa-ptr--refreshing .kf-pwa-ptr__spinner {
        animation: none;
    }
}