.card-link { text-decoration: none; color: inherit; transition: transform .08s ease; }
.card-link:hover { transform: translateY(-2px); }
.btn-primary { background: linear-gradient(135deg,#4e54c8,#8f94fb); border: none; }
.btn-primary:hover { opacity: .95; }
.card-body {
  text-align: center;
}