.header {
  position: fixed; /* headerを追従にする */
  top: 0;
  left: 0;
  right: 0;
  width: 100%;
  height: 70px;
  background-color: #fff;
  border-bottom: 3px solid #D2EFBD;
  z-index: 10;
}
.header__inner {
	display: flex;
	align-items: center;
	justify-content: space-between;
	height: inherit;
	position: relative;
	padding: 0 20px;
}
.logo {
	width: 125px;
}
ul.drawer__nav__menu {
  display: flex;
}

ul.drawer__nav__menu li ~ li {
  margin-left: 2em;
}




@media screen and (max-width:767px){

/* ハンバーガーボタンのデザイン */
.drawer__button {
  position: relative;
  width: 3rem;
  height: 3rem;
  background-color: transparent;
  border: none;
  cursor: pointer;
  z-index: 999; /* メニューを開いている時もクリックできるよう設定 */
}
/* ハンバーガーボタン内の線 */
.drawer__button > span {
  display: block;
  position: absolute;
  top: 50%;
  left: 50%;
  width: 2rem;
  height: 2px;
  background-color: black;
  transform: translateX(-50%);
}
.drawer__button > span:first-child {
  transform: translate(-50%, calc(-50% - 0.5rem));
  transition: transform 0.3s ease;
}
.drawer__button > span:nth-child(2) {
  transform: translate(-50%, -50%);
  transition: opacity 0.3s ease;
}
.drawer__button > span:last-child {
  transform: translate(-50%, calc(-50% + 0.5rem));
  transition: transform 0.3s ease;
}
/* 展開時のデザイン */
.drawer__button.active > span:first-child {
  transform: translate(-50%, -50%) rotate(-45deg);
}
.drawer__button.active > span:nth-child(2) {
  opacity: 0;
}
.drawer__button.active > span:last-child {
  transform: translate(-50%, -50%) rotate(45deg);
}
/* メニューのデザイン */
.drawer__nav {
  position: fixed; /* 追従ヘッダーなどでも表示できるよう設定しておく */
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  background-color: rgba(0, 0, 0, 0.5);
  transition: opacity 0.3s ease;
  opacity: 0;
  visibility: hidden;
}
.drawer__nav.active {
  opacity: 1;
  visibility: visible;
}
.drawer__nav__inner {
  position: relative;
  width: 80%;
  height: 100%;
  background-color: white;
  padding: 4rem 1.5rem 1rem;
  margin: 0 0 0 auto;
  overflow: scroll;
  transform: translateX(100%);
  transition: transform 0.3s ease;
}
.drawer__nav.active .drawer__nav__inner {
  transform: translateX(0);
}
.drawer__nav__menu {
  list-style: none;
  padding-left: 0;
}
.drawer__nav__link {
  display: block;
  color: black;
  text-decoration: none;
  padding: 1rem 1rem;
  border-bottom: solid 1px lightgray;
}


ul.drawer__nav__menu {
  flex-direction: column;
}

ul.drawer__nav__menu li ~ li {
  margin-left: 0;
}





/* ハンバーガーメニュー展開時、背景を固定 */
body.active {
  height: 100%;
  overflow: hidden;
}
}