body{
margin:0;
font-family:Arial;
background:#0b0f14;
color:white;
}

.nav{
display:flex;
justify-content:space-between;
padding:15px 30px;
background:#111827;
}

.menu a{
margin-left:15px;
color:white;
text-decoration:none;
}

.hero{
text-align:center;
padding:80px 20px;
}

.cta{
background:#3b82f6;
padding:12px 25px;
border-radius:6px;
color:white;
text-decoration:none;
}

.features{
display:grid;
grid-template-columns:repeat(auto-fit,minmax(200px,1fr));
gap:20px;
padding:40px;
}

.card{
background:#1f2937;
padding:20px;
border-radius:10px;
}

.container{
max-width:900px;
margin:auto;
padding:40px;
}

.grid{
display:grid;
grid-template-columns:repeat(auto-fit,minmax(200px,1fr));
gap:20px;
}

#map{
height:500px;
}

.solve input{
padding:10px;
}

.solve button{
padding:10px;
margin-left:5px;
}