html {
  scroll-behavior: smooth;
}

.top-anchor {
  position: fixed;
  bottom: 20px;
  right: 20px;
  width: 40px;
  height: 40px;
  border: 2px solid #888;
  border-radius: 50%;
  background: #333;
  color: #fff;
  font-size: 24px;
  cursor: pointer;
  opacity: 0.7;
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
}

.top-anchor:hover {
  opacity: 1;
  background: #444;
  border-color: #aaa;
}