.ssf-box {
  max-width: 420px;
  margin: auto;
  padding: 25px;
  border-radius: 18px;
  background: #fff;
  box-shadow: 0 10px 30px rgba(0,0,0,0.08);
}

.ssf-box input,
.ssf-box select {
  width: 100%;
  padding: 12px;
  margin-bottom: 12px;
  border-radius: 10px;
}

.ssf-box button {
  width: 100%;
  padding: 14px;
  background: black;
  color: white;
  border-radius: 10px;
}

#whatsappBtn {
  display:block;
  margin-top:12px;
  padding:14px;
  background:green;
  color:white;
  text-align:center;
}