.pwa-install-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: 0.75rem 1rem;
    background: #ffffff;
    border-top: 1px solid rgba(0, 0, 0, 0.08);
    box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.08);
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    animation: pwa-slide-up 0.35s ease-out;
}

@keyframes pwa-slide-up {
    from {
        transform: translateY(100%);
        opacity: 0;
    }

    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.pwa-install-banner__icon {
    flex-shrink: 0;
    width: 3rem;
    height: 3rem;
    border-radius: 0.65rem;
    object-fit: contain;
    background: #ffffff;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.12);
}

.pwa-install-banner__text {
    display: flex;
    flex-direction: column;
    gap: 0.15rem;
    flex: 1 1 auto;
    min-width: 0;
}

.pwa-install-banner__text strong {
    font-size: 0.95rem;
    font-weight: 600;
    color: #111827;
    line-height: 1.25;
}

.pwa-install-banner__text span {
    font-size: 0.8rem;
    color: #6b7280;
    line-height: 1.35;
}

.pwa-install-banner__actions {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex-shrink: 0;
}

.pwa-install-banner__btn {
    appearance: none;
    border: none;
    background: transparent;
    color: #6b7280;
    font-size: 0.85rem;
    font-weight: 600;
    padding: 0.5rem 0.75rem;
    border-radius: 0.5rem;
    cursor: pointer;
    white-space: nowrap;
    transition: background 0.15s ease, color 0.15s ease;
}

.pwa-install-banner__btn:hover,
.pwa-install-banner__btn:focus {
    background: rgba(0, 0, 0, 0.04);
    color: #374151;
}

.pwa-install-banner__btn--primary {
    background: #2e7d32;
    color: #ffffff;
}

.pwa-install-banner__btn--primary:hover,
.pwa-install-banner__btn--primary:focus {
    background: #1b5e20;
    color: #ffffff;
}

@media (min-width: 640px) {
    .pwa-install-banner {
        left: 50%;
        right: auto;
        bottom: 1.5rem;
        transform: translateX(-50%);
        width: min(100% - 2rem, 28rem);
        border-radius: 1rem;
        border: 1px solid rgba(0, 0, 0, 0.08);
        box-shadow: 0 10px 40px rgba(0, 0, 0, 0.12);
        animation: pwa-fade-in 0.35s ease-out;
    }

    @keyframes pwa-fade-in {
        from {
            opacity: 0;
            transform: translateX(-50%) translateY(1rem);
        }

        to {
            opacity: 1;
            transform: translateX(-50%) translateY(0);
        }
    }
}

@media (prefers-color-scheme: dark) {
    .pwa-install-banner {
        background: #1f2937;
        border-color: rgba(255, 255, 255, 0.08);
    }

    .pwa-install-banner__text strong {
        color: #f9fafb;
    }

    .pwa-install-banner__text span {
        color: #9ca3af;
    }

    .pwa-install-banner__btn {
        color: #9ca3af;
    }

    .pwa-install-banner__btn:hover,
    .pwa-install-banner__btn:focus {
        background: rgba(255, 255, 255, 0.08);
        color: #f3f4f6;
    }
}