.cart-upsell-banner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;

    padding: 14px 18px;
    margin-bottom: 15px;

    background: rgba(255, 255, 255, 0.75);
    backdrop-filter: blur(10px);

    border: 1px solid rgba(0,0,0,0.08);
    border-radius: 12px;

    box-shadow: 0 6px 18px rgba(0,0,0,0.06);
}

.cart-upsell-text {
    font-size: 14px;
    line-height: 1.3;
}

.cart-upsell-btn {
    background: #a1c900;
    color: #fff;
    padding: 12px 18px;
    border-radius: 10px;
    font-weight: 700;
    text-decoration: none;
    white-space: nowrap;

    transition: all 0.2s ease;
    box-shadow: 0 6px 14px rgba(161, 201, 0, 0.35);

    animation: cartPulse 2.5s infinite;
}

/* hover (spíš desktop, ale nevadí) */
.cart-upsell-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(161, 201, 0, 0.45);
}

/* jemný pulz */
@keyframes cartPulse {
    0% {
        transform: scale(1);
        box-shadow: 0 6px 14px rgba(161, 201, 0, 0.35);
    }
    50% {
        transform: scale(1.04);
        box-shadow: 0 10px 22px rgba(161, 201, 0, 0.55);
    }
    100% {
        transform: scale(1);
        box-shadow: 0 6px 14px rgba(161, 201, 0, 0.35);
    }
}