.hover-button {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 1000;
  padding: 12px 20px;
  border-radius: 999px;
  background: #282d3f;
  color: #bcbdd0;
  font-weight: bold;
  text-decoration: none;
  box-shadow: 0 4px 12px rgba(0,0,0,0.3);
  transition: background 0.2s;
}
.hover-button:hover {
  background: #393e4f;
}