body {
    padding: 0px;
    margin: 0px;
}

.container {
    margin: 0 auto;
}

.container > header {
    position: relative;
    background-color: rgb(37, 0, 72);
    height: 0px;
    padding-bottom: 7%;
}

header a .logo{
    position: absolute;
    left: 80px;
    top: 50%;
    transform: translateY(-50%);
}

header > nav {
    position: absolute;
    right: 60px;  
    top: 50%;
    transform: translateY(-50%);
    font-size: 20px; 
    font-family: Arial, sans-serif;   
}

header > nav > a {
    color: white;           
    text-decoration: none;     
    margin: 0 10px;         
    font-family: Arial, sans-serif;
}

header > nav > a:hover {
    color: blueviolet;     
}

.banner{
    width: 100%; 
    height: auto;
    display: block; 
}

.title {
    text-align: center;
    font-size: 40px;
    color: rgb(37, 0, 72);
    margin: 30px 0;
    font-family: Arial, sans-serif;
}

.product-list {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;       
    padding: 0 20px;
}

.product-item {
    background-color: white;
    border: 1px solid #ddd;
    border-radius: 10px;
    text-align: center;
    padding: 10px;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.1);
    transition: transform 0.2s, box-shadow 0.2s;
}

.product-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.2);
}

.product-item img {
    width: 100%;
    height: 180px;
    object-fit: contain;
    border-radius: 8px;
}

.product-item h3 {
    margin: 10px 0 5px;
    font-size: 18px;
    color: rgb(37, 0, 72);
}

.product-item p {
    color: orangered;
    font-weight: bold;
}

article {
    display: block;
}

footer {
    background-color: rgb(37, 0, 72);
    color: white;
    text-align: center; 
    line-height: 40px;  
    height: 40px;
    font-size: 20px;
    width: 100%;
    margin-top: 60px;
}

.text{
    font-family: Arial, sans-serif;
    margin: 40px 80px;
    line-height: 1.6; 
    text-align: justify;
    font-size: 20px;
}

.product-detail {
    display: flex;
    gap: 40px;
    margin: 40px 80px;
    font-family: Arial, sans-serif;
}

.product-image img {
    width: 400px;
    height: auto;
    border-radius: 10px;
    box-shadow: 0 3px 10px rgba(0,0,0,0.2);
}

.product-info {
    flex: 1;
}

.product-info h2 {
    color: rgb(37, 0, 72);
    font-size: 32px;
    margin-bottom: 10px;
}

.product-info .price {
    color: orangered;
    font-weight: bold;
    font-size: 22px;
}

.product-info p {
    font-size: 18px;
    margin: 8px 0;
    line-height: 1.5;
}

.product-info .desc {
    margin-top: 20px;
    text-align: justify;
}

.buy-btn {
    margin-top: 25px;
    background-color: rgb(37, 0, 72);
    color: white;
    border: none;
    padding: 12px 25px;
    font-size: 18px;
    border-radius: 8px;
    cursor: pointer;
    transition: background-color 0.3s;
}

.buy-btn:hover {
    background-color: blueviolet;
}