.pwa-install-banner {
    position: fixed;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%) translateY(120px);
    opacity: 0;
    background: #ffffff;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15), 0 4px 10px rgba(0, 0, 0, 0.05);
    border-radius: 12px;
    padding: 12px 16px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    z-index: 9999;
    width: max-content;
    max-width: 90vw;
    transition: transform 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275), opacity 0.4s ease;
    border: 1px solid rgba(0, 0, 0, 0.08);
}

.pwa-install-banner.is-visible {
    transform: translateX(-50%) translateY(0);
    opacity: 1;
}

.pwa-banner-content {
    display: flex;
    align-items: center;
    gap: 12px;
}

.pwa-icon {
    flex-shrink: 0;
}

.pwa-icon img {
    width: 44px;
    height: 44px;
    border-radius: 10px;
    object-fit: cover;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.pwa-text strong {
    display: block;
    font-size: 15px;
    color: #111827;
    margin-bottom: 2px;
    font-weight: 600;
}

.pwa-text p {
    margin: 0;
    font-size: 13px;
    color: #4b5563;
    line-height: 1.4;
}

.pwa-banner-actions {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
}

.pwa-install-btn {
    background-color: #0f766e;
    color: white;
    border: none;
    padding: 8px 18px;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.2s, transform 0.1s;
}

.pwa-install-btn:hover {
    background-color: #0d9488;
}

.pwa-install-btn:active {
    transform: scale(0.96);
}

.pwa-dismiss-btn {
    background: transparent;
    border: none;
    color: #9ca3af;
    cursor: pointer;
    padding: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: background-color 0.2s, color 0.2s;
}

.pwa-dismiss-btn:hover {
    background-color: #f3f4f6;
    color: #4b5563;
}

@media (max-width: 640px) {
    .pwa-install-banner {
        flex-direction: column;
        align-items: stretch;
        bottom: calc(82px + env(safe-area-inset-bottom));
        gap: 10px;
        padding: 12px;
        width: calc(100vw - 24px);
        max-width: 430px;
        border-radius: 16px;
    }

    .pwa-banner-content {
        min-width: 0;
        padding-right: 28px;
    }

    .pwa-icon img {
        width: 40px;
        height: 40px;
    }

    .pwa-text {
        min-width: 0;
    }

    .pwa-text strong {
        font-size: 14px;
    }

    .pwa-banner-actions {
        justify-content: stretch;
        margin-top: 0;
        padding-left: 52px;
    }

    .pwa-install-btn {
        min-height: 42px;
        flex: 1;
    }

    .pwa-dismiss-btn {
        position: absolute;
        top: 8px;
        right: 8px;
        width: 36px;
        height: 36px;
    }

    .pwa-text p {
        font-size: 12px;
    }
}