body { background:#000; color:#fff; }

.topo{
 background:#111;
 color:#fff;
 padding:8px;
 text-align:center;
}

.logo{
 font-size:28px;
 font-weight:bold;
 color:yellow;
}
.logo span{ color:red; }

.plano{
 background:#111;
 border:2px solid yellow;
 padding:20px;
 border-radius:10px;
 margin-top:20px;
}

.plano.destaque{
 border:3px solid red;
}

.destaque{
 background:#111;
 padding:50px;
 margin-top:50px;
}

.whatsapp{
 position:fixed;
 right:20px;
 bottom:20px;
 background:#25d366;
 color:#fff;
 padding:15px;
 border-radius:50px;
 text-decoration:none;
 font-weight:bold;
}