/* Đặt lại các thiết lập mặc định */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: Arial, sans-serif;
}

body {
    font-size: 16px;
    line-height: 1.6;
    background-color: #f4f4f4;
}

/* Thanh điều hướng */
header {
    background-color: #333;
    color: #fff;
    padding: 10px 0;
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.navbar .logo {
    position: relative;
    font-size: 24px;
    font-weight: bold;
}


.navbar nav ul {
    display: flex;
    list-style: none;
}

.navbar nav ul li {
    margin: 0 15px;
}

.navbar nav ul li a {
    color: #fff;
    text-decoration: none;
}

.navbar .cart a {
    color: #fff;
    text-decoration: none;
}

/* Banner */
.banner {
    background: url('https://via.placeholder.com/1200x400') no-repeat center center/cover;
    height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    text-align: center;
}

.banner-content h1 {
    font-size: 48px;
    margin-bottom: 10px;
}

.banner-content p {
    font-size: 20px;
    margin-bottom: 20px;
}

.banner-content .btn {
    padding: 10px 20px;
    background-color: #e67e22;
    color: #fff;
    text-decoration: none;
    border-radius: 5px;
}

.banner-content .btn:hover {
    background-color: #d35400;
}

/* Danh sách sản phẩm */
.products {
    padding: 40px 20px;
    background-color: #fff;
}

.products h2 {
    text-align: center;
    margin-bottom: 40px;
    font-size: 32px;
    color: #333;
}

.product-list {
    display: flex;
    justify-content: space-around;
    flex-wrap: wrap;
    height: auto;
}

.product-item {
    background-color: #f9f9f9;
    padding: 20px;
    text-align: center;
    margin: 10px;
    /* border-radius: 5px; */
    width: 300px;
}

.product-item img {
    max-width: 100%;
    margin-bottom: 20px;
}

.product-item h3 {
    font-size: 22px;
    margin-bottom: 10px;
}

.product-item p {
    font-size: 18px;
    margin-bottom: 15px;
}

.product-item .btn {
    padding: 10px 15px;
    background-color: #3498db;
    color: #fff;
    text-decoration: none;
    border-radius: 5px;
}

.product-item .btn:hover {
    background-color: #2980b9;
}

/* Footer */
footer {
    background-color: #333;
    color: #fff;
    text-align: center;
    padding: 20px;
    margin-top: 40px;
}