body{
  margin:0;
  font-family:Helvetica,Arial,sans-serif;
  background:#f6f7fb;
  color:#222;
}
header{
  background:#111;
  color:#fff;
  padding:1rem;
  display:flex;
  justify-content:space-between;
  align-items:center;
}
header h1{margin:0;font-size:1.5rem;}
header nav a{
  color:#fff;
  text-decoration:none;
  margin-left:1rem;
}
.hero{
  padding:3rem 1rem;
  text-align:center;
}
.cta{
  display:inline-block;
  margin-top:1rem;
  padding:0.75rem 1.5rem;
  background:#006aff;
  color:#fff;
  border-radius:6px;
  text-decoration:none;
}
.product{
  padding:2rem 1rem;
  max-width:600px;
  margin:0 auto;
  text-align:center;
}
.price{font-size:1.25rem;font-weight:bold;margin:0.5rem 0;}
footer{
  text-align:center;
  padding:1.5rem 0;
  background:#fff;
  margin-top:2rem;
  font-size:0.875rem;
  border-top:1px solid #eee;
}