.button-container {
  display: grid;
  grid-template-columns: repeat(2, auto);
  gap: 10px;
  padding: 20px;
}

.button {
  width: auto;
  height: 40px;
  background-color: lightgray;
  border: 2px;
  text-align: center;
  line-height: 40px;
  cursor: pointer;
  transition: background-color 0.3s;
  font-family: "Noto Sans JP", sans-serif;
  color: #000;
  font-weight: 400;
}

.button.selected {
  background-color: #616f6e;
  color: #fff;
}

.tenki_area {
  display: none;
}

.tenki_area.current {
  display: block;
}