.background{
    background-size: cover;
    height: 100vh;
background-attachment: fixed;
    background-repeat: no-repeat;
    background-image: url('b-3.jpg');
 }

@media (max-width: 768px) {
  .floating-btn {
    top: 50%;  
    right: 20px;
    width: 60px;
    height: 60px;
    font-size: 40px; 
  }

  .floating-btn.phone {
    top: 60%; 
  }
}
.active {
  color: #2563eb; 
  font-weight: bold;
  text-decoration: underline;
}
html {
  scroll-behavior: smooth;
}