body{
  font-family:Arial,Helvetica,sans-serif;
  margin:0;
  background:#f4f7fc;
}

header{
  background:#0a4fb3;
  color:#fff;
  padding:20px;
  text-align:center;
}

.models{
  display:flex;
  gap:10px;
  justify-content:center;
  flex-wrap:wrap;
  margin:20px;
}

.model-btn{
  padding:10px 16px;
  border-radius:20px;
  border:1px solid #0a4fb3;
  background:#fff;
  color:#0a4fb3;
  font-weight:bold;
}

.products{
  max-width:1200px;
  margin:20px auto;
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(250px,1fr));
  gap:20px;
}

.card{
  background:#fff;
  border-radius:16px;
  box-shadow:0 6px 18px rgba(0,0,0,.08);
  overflow:hidden;
  position:relative;
}

.card img{
  width:100%;
  height:200px;
  object-fit:cover;
}

.badge{
  position:absolute;
  top:10px;
  left:10px;
  background:#16a34a;
  color:#fff;
  padding:5px 8px;
  border-radius:6px;
  font-size:12px;
}

.price{
  font-size:18px;
  font-weight:bold;
  color:#0a4fb3;
  padding:10px;
}

.card a{
  display:block;
  margin:10px;
  background:#0a4fb3;
  color:#fff;
  text-align:center;
  padding:10px;
  border-radius:10px;
  text-decoration:none;
}

.whatsapp{
  position:fixed;
  right:20px;
  bottom:20px;
  background:#25D366;
  color:#fff;
  padding:14px 18px;
  border-radius:50px;
  font-weight:bold;
  text-decoration:none;
}