body{
font-family: Arial;
margin:0;
background:#f4f4f4;
}

header{
background:#333245;
color:white;
text-align:center;
padding:15px;
}

nav a{
color:white;
margin:10px;
text-decoration:none;
}

.title{
text-align:center;
margin-top:20px;
}

.category-container{
display:grid;
grid-template-columns:repeat(2,1fr);
gap:20px;
padding:30px;
}

.category-box{
background:white;
padding:20px;
border:1px solid #ccc;
text-decoration:none;
color:black;
text-align:center;
}

.category-box:hover{
background:#eaeaea;
}

.books{
padding:30px;
}

.content{
padding:30px;
}

.contact{
padding:30px;
}

input,textarea{
width:100%;
padding:8px;
margin:5px 0;
}

button{
padding:10px;
background:#333;
color:white;
border:none;
}

footer{
background:#333;
color:white;
text-align:center;
padding:10px;
}