    .cart-note {
        max-width: 1000px;
        margin: 20px auto 30px;
        padding: 22px 24px;
        background: #ffffff;
        border-radius: 18px;
        box-shadow: 0 12px 25px rgba(0, 0, 0, 0.08);
        text-align: center;
    }

    .cart-note h2 {
        margin: 0;
        font-size: 1.5rem;
        line-height: 1.4;
        color: #1B5E20;
    }

    .cart-note p {
        margin: 12px auto 0;
        max-width: 740px;
        font-size: 1rem;
        color: #555;
    }

    @media(max-width:768px) {
        .cart-note {
            padding: 18px 16px;
        }

        .cart-note h2 {
            font-size: 1.3rem;
        }
    }

    .cart {
        max-width: 1000px;
        margin: auto;
    }

    .item {
        background: white;
        display: flex;
        gap: 20px;
        padding: 20px;
        border-radius: 15px;
        margin-bottom: 20px;
        align-items: center;
    }

    .item img {
        width: 120px;
        height: 120px;
        object-fit: cover;
        border-radius: 12px;
    }

    .info {
        flex: 1;
    }

    .name {
        font-size: 22px;
        font-weight: bold;
        margin-bottom: 10px;
    }

    .price {
        color: red;
        font-size: 20px;
    }

    .qty {
        display: flex;
        gap: 10px;
        align-items: center;
        margin-top: 15px;
    }

    .qty button {
        width: 35px;
        height: 35px;
        border: none;
        background: #2e7d32;
        color: white;
        border-radius: 8px;
        cursor: pointer;
    }

    .remove {
        background: red;
        color: white;
        border: none;
        padding: 10px 15px;
        border-radius: 8px;
        cursor: pointer;
    }

    /* ===========================
   KHỐI THANH TOÁN
=========================== */

    .total {
        max-width: 1000px;
        margin: 40px auto;
        padding: 35px;
        background: #fff;
        border-radius: 20px;
        box-shadow: 0 15px 40px rgba(0, 0, 0, 0.08);
    }

    /* ===========================
   TÓM TẮT ĐƠN HÀNG
=========================== */

    .summary-line {
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding: 18px 0;
        font-size: 25px;
        color: #374151;
        border-bottom: 1px solid #ececec;
    }

    .summary-line span:last-child {
        font-weight: 700;
    }

    .discount-line {
        color: #16a34a;
    }

    .final-total {
        margin-top: 18px;
        padding: 20px 25px;
        /* background: linear-gradient(135deg, #e8f5e9, #d9f7d8); */
        border: 2px solid #43a047;
        border-radius: 16px;
        font-size: 20px;
        font-weight: 800;
        color: #1b5e20;
    }

    .final-total span:last-child {
        font-size: 25px;
    }

    /* ===========================
   MÃ GIẢM GIÁ
=========================== */

    .coupon-box {
        display: flex;
        gap: 15px;
        margin: 30px 0 15px;
    }

    .coupon-box input {
        flex: 1;
        height: 55px;
        padding: 0 18px;
        font-size: 18px;
        border: 2px solid #d6d6d6;
        border-radius: 12px;
        transition: .25s;
    }

    .coupon-box input:focus {
        outline: none;
        border-color: #2e7d32;
        box-shadow: 0 0 0 4px rgba(46, 125, 50, .12);
    }

    #applyCouponBtn {
        min-width: 150px;
        border: none;
        border-radius: 12px;
        background: linear-gradient(135deg, #43a047, #2e7d32);
        color: white;
        font-size: 18px;
        font-weight: 700;
        cursor: pointer;
        transition: .25s;
    }

    #applyCouponBtn:hover {
        transform: translateY(-2px);
        box-shadow: 0 10px 20px rgba(46, 125, 50, .25);
    }

    /* ===========================
   THÔNG BÁO MÃ GIẢM GIÁ
=========================== */

    #couponMessage {
        min-height: 24px;
        margin-bottom: 20px;
        font-size: 16px;
        font-weight: 600;
    }

    /* ===========================
   THÔNG TIN KHÁCH HÀNG
=========================== */

    .customer-form {
        display: flex;
        flex-direction: column;
        gap: 15px;
        margin-top: 20px;
        margin-bottom: 20px;
    }

    .customer-form input {
        width: 100%;
        height: 58px;
        padding: 0 18px;
        font-size: 17px;
        border: 2px solid #e3e3e3;
        border-radius: 12px;
        transition: .25s;
        box-sizing: border-box;
    }

    .customer-form input:focus {
        outline: none;
        border-color: #2e7d32;
        box-shadow: 0 0 0 4px rgba(46, 125, 50, .12);
    }

    /* Địa chỉ chiếm cả hàng */

    #customerAddress {
        grid-column: 1 / -1;
    }

    /* ===========================
   TIÊU ĐỀ THANH TOÁN
=========================== */

    .payment-title {
        margin: 35px 0 18px;
        font-size: 28px;
        color: #1b5e20;
        font-weight: 700;
    }

    /* ===========================
   PHƯƠNG THỨC THANH TOÁN
=========================== */

    .payment-method {
        max-width: 1000px;
        width: 100%;
        margin: 0 auto 35px;
        display: flex;
        flex-direction: column;
        gap: 16px;
    }

    .payment-method label {
        display: flex;
        align-items: center;
        gap: 14px;
        padding: 18px 20px;
        border: 2px solid #e5e7eb;
        border-radius: 14px;
        cursor: pointer;
        font-size: 18px;
        font-weight: 600;
        transition: .25s;
    }

    .payment-method label:hover {
        border-color: #2e7d32;
        background: #f7fff8;
    }

    .payment-method input[type="radio"] {
        width: 22px;
        height: 22px;
        accent-color: #2e7d32;
    }

    /* ===========================
   NÚT THANH TOÁN
=========================== */

    .checkout {
        display: block;
        max-width: 1000px;
        width: 100%;
        height: 62px;
        margin: 0 auto;

        border: none;
        border-radius: 16px;
        background: linear-gradient(135deg, #2e7d32, #1b5e20);
        color: white;
        font-size: 24px;
        font-weight: 700;
        cursor: pointer;
        transition: .3s;
        box-shadow: 0 12px 25px rgba(46, 125, 50, .25);
    }

    .checkout:hover {
        transform: translateY(-3px);
        box-shadow: 0 18px 35px rgba(46, 125, 50, .35);
    }

    .checkout:active {
        transform: scale(.98);
    }

    /* ===========================
   RESPONSIVE
=========================== */

    @media (max-width: 768px) {

        .total {
            padding: 20px;
            margin: 20px;
        }

        .summary-line {
            font-size: 18px;
        }

        .final-total {
            font-size: 24px;
        }

        .final-total span:last-child {
            font-size: 28px;
        }

        .customer-form {
            grid-template-columns: 1fr;
        }

        #customerAddress {
            grid-column: auto;
        }

        .coupon-box {
            flex-direction: column;
        }

        #applyCouponBtn {
            height: 55px;
        }

        .payment-method {
            padding: 15px;
        }

        .payment-method label {
            font-size: 16px;
        }

        .checkout {
            font-size: 20px;
            height: 56px;
        }

    }



    .payment-box {
        display: none;
        margin-top: 25px;
        padding: 25px;
        background: #fff;
        border-radius: 15px;
        text-align: center;
        border: 2px solid #2e7d32;
    }

    .payment-box img {
        width: 280px;
        max-width: 100%;
        margin: 20px auto;
        display: block;
    }

    .payment-box h3 {
        margin: 10px 0;
        color: #2e7d32;
    }

    .payment-box p {
        margin: 8px 0;
        font-size: 18px;
    }

    .payment-box button {
        margin-top: 15px;
        padding: 15px 30px;
        border: none;
        border-radius: 10px;
        background: #2e7d32;
        color: white;
        font-size: 18px;
        cursor: pointer;
    }



    /* COUPON */
    .coupon-box {

        display: flex;
        gap: 10px;
        margin-top: 20px;

    }

    .coupon-box input {

        flex: 1;
        padding: 12px;
        border: 1px solid #ddd;
        border-radius: 8px;

    }

    .coupon-box button {

        background: #2e7d32;
        color: #fff;
        border: none;
        padding: 0 25px;
        border-radius: 8px;
        cursor: pointer;

    }

    .coupon-box button:hover {

        background: #1b5e20;

    }