.history-button {
  position: absolute;
  top: 3vmin;
  right: 3vmin;
  z-index: 1000;
  cursor: pointer;
  padding: 2.5vmin;
  background: rgba(255, 255, 255, 0.9);
  border-radius: 2vmin;
  box-shadow: 0 0.5vmin 2vmin rgba(0, 0, 0, 0.2);
  transition: all 0.3s ease;
  min-width: 5vmin;
  min-height: 5vmin;
  display: flex;
  align-items: center;
  justify-content: center;
}

.history-button:hover {
  transform: scale(1.05);
  background: rgba(255, 255, 255, 1);
}

.burger-icon {
  width: 5vmin;
  height: 5vmin;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.burger-icon span {
  width: 100%;
  height: 1vmin;
  background-color: #333;
  border-radius: 0.5vmin;
  transition: all 0.3s ease;
}