body{
margin:0;
font-family:Arial,Helvetica,sans-serif;
background:#0f172a;
color:white;
}

header{
background:#111827;
padding:20px;
}

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

nav a{
color:white;
text-decoration:none;
font-weight:500;
}

.hero{
padding:140px 20px;
text-align:center;
background:linear-gradient(135deg,#1e293b,#020617);
}

.section{
max-width:1100px;
margin:auto;
padding:80px 20px;
}

.grid{
display:grid;
grid-template-columns:repeat(auto-fit,minmax(260px,1fr));
gap:25px;
}

.card{
background:#1e293b;
padding:25px;
border-radius:10px;
}

img{
border-radius:8px;
}

footer{
background:#020617;
padding:40px;
text-align:center;
color:#aaa;
margin-top:60px;
}