.btn{
  display:flex;
  align-items:center;
  justify-content:center;
  min-height:44px;
  padding:10px 20px;
  background:#2E7D32;
  color:#fff;
  border:none;
  border-radius:8px;
  cursor:pointer;
  font-size:14px;
  font-weight:600;
  font-family:Arial, sans-serif;
  text-decoration:none;
  box-shadow:0 4px 12px rgba(0,0,0,0.12);
  transition:
    background .2s ease,
    transform .15s ease,
    box-shadow .15s ease;
}

.btn:hover{
  background:#256628;
  transform:translateY(-2px);
  box-shadow:0 8px 20px rgba(0,0,0,0.18);
}

.btn:active{
  transform:translateY(0);
  box-shadow:0 3px 8px rgba(0,0,0,0.15);
}

@media (max-width:768px){

  .btn{
    min-height:44px;
    padding:10px 18px;
    font-size:14px;
  }

}