/**
 * Nút "Mua trả góp" trên trang sản phẩm.
 */
.dsi-installment-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-left: 10px;
    padding: 10px 24px;
    background: linear-gradient(135deg, #e8590c, #d9480f);
    color: #fff !important;
    border: none;
    border-radius: 6px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    text-decoration: none !important;
    transition: all 0.2s ease;
    white-space: nowrap;
}

.dsi-installment-btn:hover {
    background: linear-gradient(135deg, #d9480f, #c92a2a);
    color: #fff !important;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(217, 72, 15, 0.35);
}

.dsi-installment-btn:active {
    transform: translateY(0);
}

.dsi-installment-btn__icon {
    font-size: 16px;
}

/* Responsive: stack dưới nút add to cart trên mobile */
@media (max-width: 768px) {
    .dsi-installment-btn {
        margin-left: 0;
        margin-top: 10px;
        width: 100%;
        justify-content: center;
    }
}