/* Reset mặc định */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: Arial, sans-serif;
}

/* Header */
header {
    background-color: #fff;
    padding: 10px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 2px solid #ddd;
}

/* Logo */
.logo img {
    height: 50px;
}

/* Nội dung chính */
main {
    width: 80%;
    margin: 30px auto;
    text-align: center;
}

/* Danh sách sản phẩm */
#cart-container {
    display: flex;
    flex-direction: column;
    align-items: center;
}

/* Sản phẩm trong giỏ hàng */
.cart-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    max-width: 600px;
    background: #f9f9f9;
    padding: 15px;
    margin: 10px 0;
    border-radius: 8px;
    box-shadow: 0px 4px 6px rgba(0, 0, 0, 0.1);
}

/* Ảnh sản phẩm */
.cart-item img {
    width: 80px;
    height: 80px;
    object-fit: cover;
    border-radius: 6px;
}

/* Thông tin sản phẩm */
.cart-item p {
    flex: 1;
    margin-left: 15px;
    font-size: 16px;
    font-weight: bold;
}

/* Nút tăng/giảm số lượng */
.quantity-controls {
    display: flex;
    align-items: center;
}

.quantity-controls button {
    background: #3498db;
    color: white;
    border: none;
    padding: 5px 10px;
    font-size: 16px;
    cursor: pointer;
    border-radius: 4px;
}

.quantity-controls button:hover {
    background: #2980b9;
}

.quantity-controls span {
    font-size: 18px;
    margin: 0 10px;
    font-weight: bold;
}

/* Nút Xóa */
.remove-btn {
    background: red;
    color: white;
    border: none;
    padding: 5px 10px;
    font-size: 16px;
    cursor: pointer;
    border-radius: 4px;
}

.remove-btn:hover {
    background: darkred;
}

/* Khu vực tổng tiền & nút thanh toán */
.total-container {
    display: flex;
    justify-content: flex-end;
    align-items: center;
    margin-top: 20px;
    font-size: 20px;
    font-weight: bold;
}

/* Tổng tiền */
.total-price {
    font-size: 22px;
    font-weight: bold;
    color: #333;
    margin-right: 15px;
}

/* Nút Thanh toán */
#checkout-btn {
    background: #27ae60;
    color: white;
    font-size: 18px;
    padding: 10px 20px;
    border: none;
    cursor: pointer;
    border-radius: 6px;
}

#checkout-btn:hover {
    background: #219150;
}

/* Responsive */
@media screen and (max-width: 600px) {
    .cart-item {
        flex-direction: column;
        text-align: center;
    }

    .cart-item img {
        margin-bottom: 10px;
    }

    .quantity-controls {
        margin-top: 10px;
    }

    .total-container {
        flex-direction: column;
        align-items: center;
    }

    #checkout-btn {
        margin-left: 0;
        margin-top: 10px;
    }
}