.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 20px;
  color: inherit;
  background: transparent;
  border: 1px solid transparent;
  border-radius: 999px;
  font-size: 0.9rem;
  font-weight: 800;
  line-height: 1;
  transition: transform 0.22s ease, box-shadow 0.22s ease, background 0.22s ease, color 0.22s ease, border-color 0.22s ease;
}

.btn-primary {
  color: #fff;
  background: linear-gradient(135deg, var(--iu-blue-700), var(--iu-blue-900));
  box-shadow: 0 12px 28px rgba(20, 121, 255, 0.28);
}

.btn-light {
  color: var(--iu-blue-900);
  background: #fff;
  border-color: rgba(255, 255, 255, 0.75);
}

.btn-outline {
  color: var(--iu-blue-900);
  background: #fff;
  border-color: #b9d5ff;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn-primary:hover {
  box-shadow: 0 16px 36px rgba(20, 121, 255, 0.34);
}

.btn-outline:hover {
  color: #fff;
  background: var(--iu-blue-800);
  border-color: var(--iu-blue-800);
}