*{
margin:0;
padding:0;
box-sizing:border-box;
}

body{
font-family:Arial,sans-serif;
background:#ffffff;
color:#222;
line-height:1.7;
}

header{
background:#0b4f36;
padding:20px;
position:sticky;
top:0;
}

.logo{
color:white;
font-size:36px;
font-weight:bold;
text-align:center;
}

nav{
display:flex;
justify-content:center;
gap:30px;
margin-top:20px;
flex-wrap:wrap;
}

nav a{
color:white;
text-decoration:none;
font-weight:bold;
}

.hero{
padding:80px 20px;
text-align:center;
max-width:1000px;
margin:auto;
}

.hero h1{
font-size:55px;
margin-bottom:20px;
}

.hero p{
font-size:22px;
max-width:800px;
margin:auto;
}

.btn{
display:inline-block;
margin-top:35px;
padding:16px 40px;
background:#198754;
color:white;
text-decoration:none;
border-radius:8px;
font-weight:bold;
}

.section{
padding:70px 20px;
max-width:1200px;
margin:auto;
}

.cards{
display:grid;
grid-template-columns:repeat(auto-fit,minmax(280px,1fr));
gap:30px;
margin-top:40px;
}

.card{
background:white;
border-radius:12px;
padding:25px;
box-shadow:0 8px 25px rgba(0,0,0,.08);
}

.card img{
width:100%;
border-radius:10px;
}

footer{
background:#111;
color:white;
padding:40px;
text-align:center;
margin-top:80px;
}
.book{
max-width:380px;
margin:auto;
background:white;
padding:25px;
border-radius:15px;
box-shadow:0 10px 30px rgba(0,0,0,.08);
text-align:center;
}

.book img{
width:100%;
border-radius:10px;
margin-bottom:20px;
}

.book h2{
color:#0F5132;
margin:15px 0;
}

.btn{
display:inline-block;
padding:14px 30px;
background:#0F5132;
color:white;
text-decoration:none;
border-radius:8px;
font-weight:bold;
}
.featured{
padding:80px 20px;
background:#f7f7f7;
text-align:center;
}

.books-grid{
display:grid;
grid-template-columns:repeat(auto-fit,minmax(280px,1fr));
gap:30px;
max-width:1200px;
margin:auto;
}

.book-card{
background:white;
padding:25px;
border-radius:15px;
box-shadow:0 10px 30px rgba(0,0,0,.08);
}

.book-card img{
width:100%;
border-radius:10px;
margin-bottom:20px;
}

.book-card h3{
margin-bottom:10px;
}

.book-card p{
margin-bottom:20px;
color:#555;
}