.mode-toggle {
  background: transparent;
  border: none;
  color: var(--text-color);
  font-size: 24px;
  cursor: pointer;
  padding: 5px;
  border-radius: 50%;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s;
}

.mode-toggle:hover {
  background: rgba(255, 255, 255, 0.1);
}