.store-install-prompt {
    position: fixed;
    top: 16px;
    left: 50%;
    z-index: 1040;
    display: none;
    width: min(420px, calc(100% - 24px));
    padding: 18px 42px 18px 18px;
    transform: translate(-50%, -12px);
    border: 1px solid #eadfc9;
    border-radius: 12px;
    background: #fff;
    box-shadow: 0 8px 28px rgba(0, 0, 0, .18);
    color: #222;
    font-family: Arial, sans-serif;
    opacity: 0;
    transition: opacity .2s ease, transform .2s ease;
}

.store-install-prompt.is-visible {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    transform: translate(-50%, 0);
    opacity: 1;
}

.store-install-icon {
    width: 42px;
    height: 42px;
    flex: 0 0 42px;
}

.store-install-copy {
    min-width: 0;
}

.store-install-copy strong {
    display: block;
    padding-right: 2px;
    font-size: 15px;
    line-height: 1.35;
}

.store-install-copy p {
    margin: 5px 0 12px;
    color: #555;
    font-size: 13px;
    line-height: 1.45;
}

.store-install-copy .store-install-help {
    margin: 8px 0 12px;
    padding: 9px;
    border-radius: 6px;
    background: #fff7e8;
    color: #3d3424;
}

.store-install-actions {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px 14px;
}

.store-install-button,
.store-install-dismiss {
    border: 0;
    cursor: pointer;
    font: inherit;
}

.store-install-button {
    padding: 9px 13px;
    border-radius: 6px;
    background: #f39c12;
    color: #fff;
    font-size: 13px;
    font-weight: 700;
}

.store-install-dismiss {
    padding: 7px 0;
    background: transparent;
    color: #666;
    font-size: 12px;
}

.store-install-close {
    position: absolute;
    top: 7px;
    right: 10px;
    padding: 2px 6px;
    border: 0;
    background: transparent;
    color: #666;
    cursor: pointer;
    font-size: 23px;
    line-height: 1;
}

@media (prefers-reduced-motion: reduce) {
    .store-install-prompt {
        transition: none;
    }
}