.tb-pwa-install-card {
    position: fixed;
    left: 14px;
    right: 14px;
    bottom: calc(14px + env(safe-area-inset-bottom, 0px));
    z-index: 2147483000;
    max-width: 440px;
    margin: 0 auto;
    padding: 14px;
    border: 1px solid var(--tb-pwa-border, #dfe4e8);
    border-radius: 18px;
    background: var(--tb-pwa-bg, #fff);
    color: var(--tb-pwa-text, #20242a);
    box-shadow: 0 18px 48px rgba(0, 0, 0, .2);
    font: inherit;
    transform: translateY(24px);
    opacity: 0;
    visibility: hidden;
    transition: transform .24s ease, opacity .24s ease, visibility .24s ease;
}

.tb-pwa-install-card.is-visible {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
}

.tb-pwa-install-row {
    display: grid;
    grid-template-columns: 52px minmax(0, 1fr);
    gap: 12px;
    align-items: center;
}

.tb-pwa-install-icon {
    width: 52px;
    height: 52px;
    border-radius: 13px;
    object-fit: cover;
    display: block;
    background: rgba(127, 127, 127, .08);
}

.tb-pwa-install-title {
    margin: 0 0 3px;
    color: var(--tb-pwa-text, #20242a);
    font-size: 16px;
    line-height: 1.2;
    font-weight: 800;
}

.tb-pwa-install-text {
    margin: 0;
    color: var(--tb-pwa-text, #20242a);
    opacity: .82;
    font-size: 13px;
    line-height: 1.4;
}

.tb-pwa-install-actions {
    display: flex;
    gap: 8px;
    justify-content: flex-end;
    margin-top: 12px;
}

.tb-pwa-install-actions button {
    min-height: 40px;
    border-radius: 11px;
    padding: 8px 14px;
    font: inherit;
    font-size: 13px;
    font-weight: 800;
    cursor: pointer;
    -webkit-tap-highlight-color: transparent;
}

.tb-pwa-install-dismiss {
    border: 1px solid var(--tb-pwa-border, #dfe4e8);
    background: transparent;
    color: var(--tb-pwa-text, #20242a);
}

.tb-pwa-install-primary {
    border: 1px solid var(--tb-pwa-accent, #62b91f);
    background: var(--tb-pwa-accent, #62b91f);
    color: var(--tb-pwa-button-text, #fff);
}

.tb-pwa-install-primary:focus-visible,
.tb-pwa-install-dismiss:focus-visible {
    outline: 3px solid color-mix(in srgb, var(--tb-pwa-accent, #62b91f) 42%, transparent);
    outline-offset: 2px;
}

@media (hover: hover) and (pointer: fine) {
    .tb-pwa-install-card { display: none !important; }
}

@media (prefers-reduced-motion: reduce) {
    .tb-pwa-install-card { transition: none; }
}