body{
  margin:0;
  font-family: 'Helvetica Neue', Arial, sans-serif;
  background:#f8fafc;
  color:#111;
}

nav{
  padding:20px;
  text-align:center;
  border-bottom:1px solid #eee;
}

nav a{
  margin:0 20px;
  text-decoration:none;
  color:#111;
  font-weight:500;
}

.hero{
  padding:120px 20px;
  text-align:center;
  background:linear-gradient(135deg,#1e3a8a,#0f172a);
  color:#fff;
}

.hero h1{
  font-size:56px;
  margin-bottom:20px;
}

.btn{
  padding:12px 28px;
  background:#2563eb;
  color:#fff;
  border-radius:6px;
  text-decoration:none;
  font-weight:600;
}

.container{
  max-width:1200px;
  margin:auto;
  padding:80px 20px;
}

.grid{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(250px,1fr));
  gap:30px;
}

.card{
  background:#fff;
  padding:20px;
  border-radius:12px;
  box-shadow:0 8px 30px rgba(0,0,0,0.05);
  text-align:center;
}

footer{
  padding:50px;
  text-align:center;
  background:#111;
  color:#aaa;
}