/* ===== PC ===== */
/* 共通設定 */
a, a:visited, a:hover, a:active {
  color: inherit;
  text-decoration: none;
}

/* ロゴ位置調整 */
.top-left-image {
  position: fixed;
  top: 10px;
  left: 10px;
  width: 80px;
  height: auto;
}

.top-left-image img {
  width: 100%;
  height: auto;
}

/* ハンバーガーメニュー全体 */
.outer-menu {
  position: fixed;
  top: 0;
  right: 0;
  z-index: 1000;
	font-family: 'Open Sans', sans-serif;
}

/* チェックボックス（非表示） */
.outer-menu .checkbox-toggle {
  position: absolute;
  top: 0;
  right: 0;
  z-index: 2;
  cursor: pointer;
  width: 60px;
  height: 60px;
  opacity: 0;
}

/* ハンバーガーアイコン */
.outer-menu .hamburger {
  position: absolute;
  top: 0;
  right: 0;
  z-index: 1;
  width: 80px;
  height: 80px;
  padding: .5em 1em;
  border-radius: .12em 0 0 .12em;
  background-color: transparent;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: box-shadow .4s ease;
}

/* ハンバーガーの線（3本） */
.outer-menu .hamburger > div {
  position: relative;
  width: 100%;
  height: 2px;
  background: #334496;
  transition: all .4s ease;
}

.outer-menu .hamburger > div::before,
.outer-menu .hamburger > div::after {
  content: '';
  position: absolute;
  left: 0;
  width: 100%;
  height: 2px;
  background: inherit;
  transition: all .4s ease;
}

.outer-menu .hamburger > div::before {
  top: -10px;
}

.outer-menu .hamburger > div::after {
  top: 10px;
}

/* 開いたとき「×」にして白く */
.outer-menu .checkbox-toggle:checked + .hamburger > div {
  transform: rotate(135deg);
  background: #fff !important;
}

.outer-menu .checkbox-toggle:checked + .hamburger > div::before,
.outer-menu .checkbox-toggle:checked + .hamburger > div::after {
  top: 0;
  transform: rotate(90deg);
  background: #fff !important;
}

.outer-menu .checkbox-toggle:checked + .hamburger > div::after {
  opacity: 0;
}

/* メニューオーバーレイ */
.outer-menu .menu {
  position: fixed;
  top: 0;
  right: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  visibility: hidden;
  opacity: 0;
  overflow: hidden;
  color: #fff;
  transition: visibility 0s linear 0.75s, opacity 0.75s ease;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* メニュー表示時 */
.outer-menu .checkbox-toggle:checked ~ .menu {
  pointer-events: auto;
  visibility: visible;
  opacity: 1;
  transition-delay: 0s;
}

/* 背景の青い丸 */
.outer-menu .menu > div {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 400vw;
  height: 400vw;
  background: #334496;
  border-radius: 50%;
  transform: scale(0) translate(-50%, -50%);
  transition: transform 0.75s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10000;
  overflow: hidden;
}

/* 開いたときに拡大表示 */
.outer-menu .checkbox-toggle:checked ~ .menu > div {
  transform: scale(1) translate(-50%, -50%);
}

/* メニューの中身 */
.outer-menu .menu > div > div {
  text-align: center;
  opacity: 0;
  transition: opacity .4s ease .4s;
  max-width: 90vw;
  max-height: 100vh;
  overflow-y: auto;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* メニュー中身の表示 */
.outer-menu .checkbox-toggle:checked ~ .menu > div > div {
  opacity: 1;
}

/* メニューリスト */
.outer-menu .menu ul {
  list-style: none;
  padding: 0 1em;
  margin: 0;
}

.outer-menu .menu li {
  margin: 1em;
  font-size: 42px;
}

.outer-menu .menu li a {
  position: relative;
  display: inline;
  color: #fff;
  transition: color .4s ease;
}

.outer-menu .menu li a:hover {
  color: #E6E6E6;
}

.outer-menu .menu li a::after {
  content: '';
  position: absolute;
  bottom: -0.15em;
  left: 0;
  width: 0;
  height: 2px;
  background: #E6E6E6;
  transition: width .4s ease;
}

.outer-menu .menu li a:hover::after {
  width: 100%;
}
/* ===== PC END ===== */

/* ===== スマートフォン ===== */
@media (max-width: 768px) {
  .top-left-image {
    width: 60px;
    top: 8px;
    left: 8px;
  }

  .outer-menu {
    top: -5px;
  }

  .outer-menu .hamburger {
    width: 70px;
    height: 60px;
    padding: 0.4em 0.8em;
    border-radius: .1em 0 0 .1em;
  }

  .outer-menu .checkbox-toggle {
    width: 50px;
    height: 50px;
  }

  .outer-menu .menu li {
    font-size: 24px;
  }
}
/* ===== スマートフォン END ===== */