/* ===== PWA / Standalone app shell ===== */

html.pwa-standalone {
    --pwa-safe-top: env(safe-area-inset-top, 0px);
    --pwa-safe-bottom: env(safe-area-inset-bottom, 0px);
}

html.pwa-standalone body.app-layout {
    padding-top: var(--pwa-safe-top);
    overscroll-behavior-y: contain;
    -webkit-tap-highlight-color: transparent;
}

html.pwa-standalone .topbar {
    padding-top: calc(.35rem + var(--pwa-safe-top));
    min-height: calc(var(--topbar-h) + var(--pwa-safe-top));
}

html.pwa-standalone .bottom-nav {
    padding-bottom: calc(.35rem + var(--pwa-safe-bottom));
    height: calc(var(--bottom-nav-h) + var(--pwa-safe-bottom));
}

html.pwa-standalone .floating-actions {
    bottom: calc(var(--bottom-nav-h) + var(--pwa-safe-bottom) + .75rem);
}

html.pwa-standalone .sidebar {
    padding-top: var(--pwa-safe-top);
}

html.pwa-standalone .team-chat-page {
    height: calc(100dvh - var(--topbar-h) - var(--pwa-safe-top) - 2rem);
}

/* Install banner */
.pwa-install-banner {
    position: fixed;
    z-index: 600;
    left: 50%;
    transform: translateX(-50%);
    bottom: calc(var(--bottom-nav-h, 0px) + env(safe-area-inset-bottom, 0px) + .75rem);
    width: min(420px, calc(100vw - 1.25rem));
    display: flex;
    align-items: center;
    gap: .65rem;
    padding: .65rem .75rem;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    box-shadow: 0 8px 32px rgba(0, 0, 0, .14);
    animation: pwaSlideUp .35s ease;
}

body:not(.app-layout) .pwa-install-banner,
.auth-layout .pwa-install-banner {
    bottom: calc(env(safe-area-inset-bottom, 0px) + 1rem);
}

.pwa-install-icon img {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    display: block;
    box-shadow: var(--shadow-xs);
}

.pwa-install-body {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: .1rem;
}

.pwa-install-body strong {
    font-size: .82rem;
    font-weight: 600;
}

.pwa-install-body span {
    font-size: .68rem;
    color: var(--text-tertiary);
    line-height: 1.45;
}

.pwa-install-actions {
    display: flex;
    align-items: center;
    gap: .25rem;
    flex-shrink: 0;
}

.pwa-install-dismiss {
    width: 32px;
    height: 32px;
    padding: 0;
    font-size: 1.1rem;
    line-height: 1;
}

html.pwa-standalone .pwa-install-banner {
    display: none !important;
}

@keyframes pwaSlideUp {
    from {
        opacity: 0;
        transform: translateX(-50%) translateY(12px);
    }
    to {
        opacity: 1;
        transform: translateX(-50%) translateY(0);
    }
}

@media (min-width: 901px) {
    .pwa-install-banner {
        bottom: 1.25rem;
    }
}

@media (display-mode: standalone) {
    .pwa-install-banner {
        display: none !important;
    }
}