.app-install-prompt {
    position: fixed;
    left: 12px;
    right: 12px;
    bottom: 92px;
    z-index: 5000;
    display: none;
    grid-template-columns: 54px 1fr;
    gap: 12px;
    padding: 14px;
    border-radius: 24px;
    background: rgba(255,255,255,.96);
    border: 1px solid rgba(226,232,240,.95);
    box-shadow: 0 22px 60px rgba(15,23,42,.22);
    backdrop-filter: blur(18px);
}

.app-install-prompt.show {
    display: grid;
    animation: appInstallUp .28s ease both;
}

@keyframes appInstallUp {
    from { transform: translateY(18px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

.app-install-close {
    position: absolute;
    top: 10px;
    right: 10px;
    width: 30px;
    height: 30px;
    border: 0;
    border-radius: 999px;
    background: #f1f5f9;
    color: #64748b;
    cursor: pointer;
}

.app-install-icon {
    width: 54px;
    height: 54px;
    border-radius: 18px;
    display: grid;
    place-items: center;
    background: linear-gradient(135deg, var(--app-install-color, #16a34a), var(--app-install-color-dark, #15803d));
    color: #fff;
    font-size: 1.35rem;
}

.app-install-content strong {
    display: block;
    padding-right: 30px;
    font-size: .98rem;
    font-weight: 950;
    color: #0f172a;
}

.app-install-content p {
    margin: 5px 0 12px;
    color: #64748b;
    font-size: .82rem;
    font-weight: 700;
    line-height: 1.35;
}

.app-install-actions {
    display: flex;
    gap: 8px;
}

.app-install-btn {
    height: 38px;
    padding: 0 13px;
    border-radius: 13px;
    border: 0;
    background: #f1f5f9;
    color: #0f172a;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 7px;
    font-size: .78rem;
    font-weight: 950;
    text-decoration: none;
    cursor: pointer;
}

.app-install-btn.primary {
    background: linear-gradient(135deg, var(--app-install-color, #16a34a), var(--app-install-color-dark, #15803d));
    color: #fff;
}

@media (min-width: 769px) {
    .app-install-prompt.mobile-only {
        display: none !important;
    }
}