#darkModeBtn {
  position: relative;
  display: block;
  margin: 16px 16px 8px auto;
  z-index: 3;
  padding: 6px 12px;
  border: 1px solid #888;
  border-radius: 18px;
  background: #fff;
  color: #333;
  font-size: 14px;
  cursor: pointer;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.2);
}

body.dark-mode {
  background: #000 !important;
  color: #ddd;
}

body.dark-mode #darkModeBtn {
  background: #222;
  color: #eee;
  border-color: #555;
}