.lt-product-tradein {
    margin: 18px 0 22px;
    padding: 20px;
    border: 1px solid #cfe3f7;
    border-radius: 12px;
    background: linear-gradient(180deg, #f7fbff 0%, #ffffff 100%);
    box-sizing: border-box;
}

.lt-product-tradein__heading {
    display: flex;
    justify-content: space-between;
    gap: 18px;
    align-items: flex-start;
    margin-bottom: 18px;
}

.lt-product-tradein__eyebrow {
    margin-bottom: 2px;
    color: #1976d2;
    font-size: 20px;
    font-weight: 700;
}



.lt-product-tradein__title {
    margin: 0;
    font-size: 24px;
    line-height: 1.25;
}

.lt-product-tradein__promise {
    color: #5f6b7a;
    font-size: 13px;
    line-height: 1.45;
    text-align: right;
}

.lt-product-tradein__promise small {
    display: block;
    margin-top: 2px;
    color: #8a94a3;
    font-size: 12px;
}

.lt-product-tradein__selectors {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 12px;
}

.lt-product-tradein__field {
    display: block;
    margin: 0;
}

.lt-product-tradein__field > span {
    display: block;
    margin-bottom: 6px;
    color: #394455;
    font-size: 13px;
    font-weight: 700;
}

.lt-product-tradein__field select {
    width: 100%;
    min-height: 44px;
    margin: 0;
    padding: 8px 34px 8px 11px;
    border: 1px solid #cdd6e0;
    border-radius: 6px;
    background-color: #fff;
    box-sizing: border-box;
}

.lt-product-tradein__query-row {
    display: flex;
    gap: 12px;
    align-items: center;
    margin-top: 14px;
}

.lt-product-tradein__query-button {
    min-width: 130px;
}

.lt-product-tradein__query-button:not(:disabled) {
    cursor: pointer;
    opacity: 1;
}

.lt-product-tradein__query-button:disabled {
    cursor: not-allowed;
    opacity: 0.55;
}

.lt-product-tradein__status {
    font-size: 13px;
    line-height: 1.5;
}

.lt-product-tradein__status.is-success {
    color: #16833b;
}

.lt-product-tradein__status.is-error {
    color: #c62828;
}

.lt-product-tradein__status.is-info {
    color: #56657a;
}

.lt-product-tradein__result {
    display: grid;
    grid-template-columns: 0.85fr 1.35fr;
    gap: 0;
    overflow: hidden;
    margin-top: 16px;
    border: 1px solid #d8e4f0;
    border-radius: 9px;
    background: #fff;
}

.lt-product-tradein__result[hidden] {
    display: none !important;
}

.lt-product-tradein__estimate {
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 18px;
    background: #eaf6ff;
}

.lt-product-tradein__estimate > span {
    margin-bottom: 4px;
    color: #2574b8;
    font-size: 14px;
    font-weight: 700;
}

.lt-product-tradein__estimate > strong {
    color: #0873c7;
    font-size: 34px;
    line-height: 1.1;
}

.lt-product-tradein__calculation {
    padding: 13px 18px;
}

.lt-product-tradein__calculation > div {
    display: flex;
    justify-content: space-between;
    gap: 15px;
    padding: 5px 0;
}

.lt-product-tradein__calculation span {
    color: #556170;
}

.lt-product-tradein__calculation strong {
    white-space: nowrap;
}

.lt-product-tradein__calculation .is-discount {
    color: #16833b;
}

.lt-product-tradein__calculation .is-total {
    margin-top: 4px;
    padding-top: 9px;
    border-top: 1px solid #d8dee8;
    font-weight: 700;
}

.lt-product-tradein__calculation .is-total strong {
    color: #0873c7;
    font-size: 22px;
}

.lt-product-tradein__notice {
    grid-column: 1 / -1;
    margin: 0;
    padding: 10px 16px 0;
    color: #737d8a;
    font-size: 12px;
    line-height: 1.6;
}

.lt-product-tradein__actions {
    grid-column: 1 / -1;
    display: grid;
    grid-template-columns: 1fr 0.86fr;
    gap: 10px;
    padding: 14px 16px 16px;
}

.lt-product-tradein__apply,
.lt-product-tradein__direct {
    min-height: 46px;
}

.lt-product-tradein__apply {
    font-weight: 700;
}

.lt-product-tradein__direct-only {
    margin-top: 12px;
}

.lt-product-tradein__direct-only .button {
    width: 100%;
}

/*
 * JS 成功啟動後才隱藏 WooCommerce 原生 Add to Cart。
 * quantity / variation selectors 仍保留。
 */
form.cart.lt-tradein-product-mode .single_add_to_cart_button {
    display: none !important;
}

/*
 * 商品頁上方有原生 qty + button 時，
 * 隱藏 button 後保留 qty 不需額外撐大。
 */
form.cart.lt-tradein-product-mode {
    margin-bottom: 0;
}

@media (max-width: 768px) {

    .lt-product-tradein {
        padding: 16px;
    }

    .lt-product-tradein__heading {
        display: block;
    }

    .lt-product-tradein__promise {
        margin-top: 8px;
        text-align: left;
    }

    .lt-product-tradein__selectors {
        grid-template-columns: 1fr;
    }

    .lt-product-tradein__result {
        grid-template-columns: 1fr;
    }

    .lt-product-tradein__notice,
    .lt-product-tradein__actions {
        grid-column: auto;
    }

    .lt-product-tradein__estimate > strong {
        font-size: 30px;
    }

    .lt-product-tradein__actions {
        grid-template-columns: 1fr;
    }
}