.pwa-install-banner {
    position: fixed;
    left: 16px;
    right: 16px;
    bottom: 16px;
    z-index: 120;
    display: none;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
    padding: 14px 16px;
    border-radius: 20px;
    border: 1px solid rgba(17, 24, 39, 0.12);
    background: rgba(17, 24, 39, 0.94);
    color: #ffffff;
    box-shadow: 0 18px 36px rgba(15, 23, 42, 0.28);
    backdrop-filter: blur(14px);
}

.pwa-install-banner.is-visible {
    display: flex;
}

.pwa-install-copy {
    display: grid;
    gap: 4px;
    min-width: 0;
}

.pwa-install-copy strong {
    font-size: 15px;
}

.pwa-install-copy span {
    font-size: 13px;
    line-height: 1.5;
    color: rgba(255, 255, 255, 0.78);
}

.pwa-install-actions {
    display: flex;
    align-items: center;
    gap: 10px;
    flex: none;
}

.pwa-install-btn,
.pwa-dismiss-btn {
    min-height: 44px;
    border-radius: 14px;
    padding: 0 16px;
    border: 1px solid rgba(255, 255, 255, 0.18);
    cursor: pointer;
    font: inherit;
    font-weight: 700;
}

.pwa-install-btn {
    background: #ffffff;
    color: #111827;
}

.pwa-dismiss-btn {
    background: transparent;
    color: #ffffff;
}

@media (max-width: 640px) {
    .pwa-install-banner {
        left: 12px;
        right: 12px;
        bottom: 12px;
        flex-direction: column;
        align-items: stretch;
    }

    .pwa-install-actions {
        width: 100%;
        flex-direction: column;
    }

    .pwa-install-btn,
    .pwa-dismiss-btn {
        width: 100%;
    }
}