.pwa-install-container {
    position: fixed;
    inset-inline: 12px;
    top: max(12px, env(safe-area-inset-top, 0px));
    z-index: 1050;
    max-width: 520px;
    margin-inline: auto;
    animation: pwa-slide-up 0.35s ease-out;
}

@keyframes pwa-slide-up {
    from {
        opacity: 0;
        transform: translateY(12px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.pwa-install-card {
    position: relative;
    display: flex;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
    background: rgba(255, 255, 255, 0.96);
    border: 1px solid rgba(74, 85, 104, 0.25);
    border-radius: 14px;
    padding: 1rem 1.15rem;
    padding-inline-start: 1.15rem;
    padding-inline-end: 2.25rem;
    box-shadow: 0 10px 32px rgba(45, 55, 72, 0.14);
    backdrop-filter: blur(8px);
}

.pwa-install-close {
    position: absolute;
    top: 8px;
    inset-inline-end: 8px;
    width: 2rem;
    height: 2rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: none;
    border-radius: 8px;
    background: transparent;
    color: #718096;
    cursor: pointer;
    transition: background 0.2s, color 0.2s;
}

.pwa-install-close:hover {
    background: rgba(226, 232, 240, 0.8);
    color: #2d3748;
}

.pwa-install-icon {
    flex-shrink: 0;
    color: var(--primary-color, #4a5568);
    font-size: 2rem;
    line-height: 1;
}

.pwa-install-text {
    flex: 1;
    min-width: 140px;
}

.pwa-install-title {
    margin: 0;
    font-size: 1rem;
    font-weight: 700;
    color: #1a202c;
}

.pwa-install-desc {
    margin: 0.25rem 0 0;
    font-size: 0.8125rem;
    color: #718096;
    line-height: 1.5;
}

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

.pwa-btn-later {
    padding: 0.55rem 0.85rem;
    border: none;
    border-radius: 10px;
    font-size: 0.8125rem;
    font-weight: 600;
    cursor: pointer;
    background: transparent;
    color: #718096;
    transition: color 0.2s, background 0.2s;
}

.pwa-btn-later:hover {
    color: #4a5568;
    background: rgba(226, 232, 240, 0.6);
}

.pwa-btn-install {
    padding: 0.55rem 1.1rem;
    border: none;
    border-radius: 10px;
    font-size: 0.875rem;
    font-weight: 600;
    cursor: pointer;
    background: linear-gradient(145deg, var(--primary-color, #4a5568), var(--primary-dark, #2d3748));
    color: #fff;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.pwa-btn-install:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 16px rgba(45, 55, 72, 0.22);
}

@media (max-width: 480px) {
    .pwa-install-card {
        flex-direction: column;
        align-items: stretch;
        text-align: center;
    }

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

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