/* リセット */
nav {
  width: auto;
  height: auto;
  float: none;
  position: static;
  z-index: auto;
}

/*buttonリセット*/
button {
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
  border: none;
  outline: none;
  background: transparent;
  cursor: pointer;
  padding: 0;
}

:root {
  --color-text: #151515;
  --color-main: #4e7eb8;
  --color-light-main: #DCE7F2;
  --color-bright-main: #f3f7fa;
}


header {
  font-family: 'Noto Sans CJK JP', 'Noto Sans JP', 'Hiragino Sans', 'Hiragino Kaku Gothic ProN', sans-serif;
  z-index: 1000;
}

@media screen and (min-width: 768px) {
  header {
    display: flex;
    align-items: center;
  }
}

/* 字詰め */
.tight-full-open {
  display: inline-block;
  margin-left: -0.4em;
  margin-right: -0.1em;
}

.tight-full-close {
  display: inline-block;
  margin-left: -0.1em;
  margin-right: -0.4em;
}

.tight-half-open {
  display: inline-block;
  margin-left: -0.3em;
  margin-right: -0.1em;
}

.tight-half-close {
  display: inline-block;
  margin-left: -0.1em;
  margin-right: -0.3em;
}

.tight-symbol {
  display: inline-block;
  margin-left: -0.2em;
  margin-right: -0.2em;
}

/*------------------------------------------*/
/* ナビ
/*------------------------------------------*/

.global-nav {
  list-style: none;
}

@media (max-width: 767px) {
  .global-nav {
    display: none;
  }

  .mobile-nav-overlay .global-nav {
    display: flex;
    flex-direction: column;
    padding: 20px;
  }
}

.global-nav>li {
  position: relative;
}

/* 親 ---------------------*/
.global-nav>li>a,
.global-nav>li>button {
  position: relative;
  display: block;
  color: var(--color-text);
  text-decoration: none;
  transition: color 0.3s;
}

.global-nav>li>a:hover,
.global-nav>li>button:hover,
.global-nav>li.is-open>a,
.global-nav>li.is-open>button {
  color: var(--color-main);
}

@media (max-width: 767px) {
  .mobile-nav-overlay.is-open {
    transform: translateX(0);
  }

  .mobile-nav-overlay .global-nav>li {
    margin: 0;
    border-bottom: 1px solid var(--color-main);
  }

  .global-nav .nav-single a,
  .global-nav>li>button {
    text-align: left;
    width: 100%;
    font-size: 1rem;
    font-weight: 600;
    padding: 20px 0;
  }

  .global-nav>li:not(.is-open)>button {
    color: var(--color-text);
  }

  .global-nav>li>button::before,
  .global-nav>li>button::after {
    content: '';
    display: inline-block;
    background: var(--color-main);
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    transition: transform 0.3s;
  }

  .global-nav>li>button::before {
    width: 14px;
    height: 2px;
    right: 0;
  }

  .global-nav>li>button::after {
    width: 2px;
    height: 14px;
    right: 6px;
    transition: all .5s ease;
  }

  .global-nav>li.is-open>button::after {
    opacity: 0;
  }
}

@media screen and (min-width: 768px) {
  .global-nav {
    display: flex;
    align-items: center;
    height: 100%;
  }

  .global-nav .nav-single {
    margin-right: 20px;
  }

  .global-nav>li>button {
    margin-right: 40px;
  }

  .global-nav .nav-single a,
  .global-nav>li>button {
    font-size: 0.8rem;
    font-weight: bold;
  }

  .global-nav>li>button:after {
    content: '';
    display: inline-block;
    background: url('../img/icon_arrow_circle.svg') no-repeat;
    background-size: 100%;
    aspect-ratio: 1/1;
    width: 15px;
    height: auto;
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    right: -20px;
    transition: transform 0.3s;
  }

  .global-nav>li.is-open>button::after {
    transform: translateY(-50%) rotate(180deg);
  }
}

@media screen and (min-width: 1040px) {

  .global-nav .nav-single a,
  .global-nav>li>button {
    font-size: calc(calc(16 / 1400) * 100vw);
  }
}

@media screen and (min-width: 1400px) {
  .global-nav .nav-single {
    margin-right: 30px;
  }

  .global-nav>li>button {
    margin-right: 48px;
  }

  .global-nav .nav-single a,
  .global-nav>li>button {
    font-size: 1rem;
  }

  .global-nav>li>button:after {
    width: 18px;
    right: -23px;
  }
}


/* 子 ---------------------*/
.global-nav-sub {
  list-style: none;
  position: absolute;
  top: 100%;
  left: 0;
  background: white;
  padding: 20px;
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s;
}

.global-nav-sub.is-open {
  max-height: 10000px;
  opacity: 1;
  visibility: visible;
}

.global-nav-sub>li>a,
.global-nav-sub>li>button {
  position: relative;
  display: inline-block;
  width: 100%;
  text-align: left;
  font-size: 1rem;
  padding: 15px 0;
  text-decoration: none;
  background: none;
  border: none;
  cursor: pointer;
  transition: color 0.3s;
}

.global-nav-sub>li>a:hover,
.global-nav-sub>li>button:hover,
.global-nav-sub>li.is-active>button,
.global-nav-sub>li.is-active>a {
  color: var(--color-main);
}

@media screen and (max-width: 767px) {
  .mobile-nav-overlay .global-nav-sub {
    position: static;
    box-shadow: none;
    padding: 0;
    width: auto;
  }

  .single-column .global-nav-sub>li,
  .global-nav-sub>li.has-children {
    margin-bottom: 10px;
  }

  .global-nav-sub>li>a,
  .global-nav-sub>li>button {
    color: var(--color-text);
    font-size: 1rem;
  }

  .global-nav-sub>li:not(.is-open)>button {
    color: var(--color-text);
  }

  .single-column .global-nav-sub>li a,
  .global-nav-sub>li.has-children>button {
    position: relative;
    background: var(--color-bright-main);
    border-radius: 10px;
    padding: 10px 20px;
  }

  .global-nav-sub>li.has-children.is-open>button {
    border-radius: 10px 10px 0 0;
  }

  /* ボタンの矢印アイコン（孫ナビがある場合のみ） */
  .global-nav-sub>li.has-children>button::before,
  .global-nav-sub>li.has-children>button::after {
    content: '';
    display: inline-block;
    background: var(--color-main);
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    transition: transform 0.3s;
  }

  .global-nav-sub>li.has-children>button::before {
    width: 10px;
    height: 1px;
    right: 10px;
  }

  .global-nav-sub>li.has-children>button::after {
    width: 1px;
    height: 10px;
    right: calc(10px + 5px);
    transition: all .5s ease;
  }

  .global-nav-sub>li.has-children.is-open>button::after {
    opacity: 0;
  }
}

@media (min-width: 768px) {
  .global-nav-sub {
    padding: 20px;
  }

  .global-nav>li.has-mega-menu>.global-nav-sub {
    display: none;
  }

  .global-nav-sub>li>a,
  .global-nav-sub>li>button {
    background: white;
    color: var(--color-text);
    font-size: 0.9rem;
    font-weight: 600;
    padding: 15px 20px;
  }

  .global-nav-sub>li.has-children>button {
    background: var(--color-light-main);
  }

  .global-nav-sub>li.has-children>button:after {
    content: '';
    display: inline-block;
    background: url('../img/icon_arrow_circle_side.svg') no-repeat;
    background-size: 100%;
    aspect-ratio: 1/1;
    width: 15px;
    height: auto;
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    right: 15px;
    transition: transform 0.3s;
  }

  .single-column .global-nav-sub>li>a {
    padding-left: 30px;
  }

  .single-column .global-nav-sub>li>a:after {
    content: '';
    display: inline-block;
    background: url('../img/icon_arrow_side.svg') no-repeat;
    background-size: 100%;
    aspect-ratio: 65/100;
    width: 5px;
    height: auto;
    position: absolute;
    top: 1.5em;
    left: 15px;
    transition: transform 0.3s;
  }

  .global-nav-sub>li>a:hover,
  .global-nav-sub>li>button:hover,
  .global-nav-sub>li.is-active>button,
  .global-nav-sub>li.is-active>a {
    background: var(--color-main);
    color: white;
  }

  .global-nav-sub>li.is-active>button:after,
  .global-nav-sub>li.has-children>button:hover:after {
    background: url('../img/icon_arrow_circle_side_white.svg') no-repeat;
    background-size: 100%;
  }

  .single-column .global-nav-sub>li.is-active>button:after,
  .single-column .global-nav-sub>li>a:hover:after {
    background: url('../img/icon_arrow_side_white.svg') no-repeat;
    background-size: 100%;
  }
}

@media (min-width: 1400px) {

  .global-nav-sub>li>a,
  .global-nav-sub>li>button {
    font-size: 1rem;
  }
}

/* 孫 ---------------------*/
.grandchild-nav {
  list-style: none;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s;
}

.grandchild-nav.is-open {
  max-height: 10000px;
}

@media screen and (max-width: 767px) {
  .mobile-nav-overlay .grandchild-nav {
    background: var(--color-light-main);
    border-radius: 0 0 10px 10px;
  }

  .grandchild-nav>li>a {
    position: relative;
    display: block;
    text-decoration: none;
    text-align: left;
    color: var(--color-text);
    font-size: 0.9rem;
    padding: 10px 20px;
    transition: color 0.3s;
  }

  .grandchild-nav>li>a::before {
    content: '';
    display: inline-block;
    background: url('../img/icon_arrow_side.svg') no-repeat;
    background-size: 100%;
    aspect-ratio: 65/100;
    width: 5px;
    height: auto;
    position: absolute;
    top: 1.2em;
    left: 7px;
  }

  .grandchild-nav>li>a:hover {
    color: var(--color-main);
  }

  .menu-overlay {
    display: none;
  }
}

@media (min-width: 768px) {
  .global-nav .content {
    margin-top: 70px;
    min-height: 100vh;
    padding: 50px 0;
  }

  /* Mega Menu and Regular Menu Overlay for PC */
  .menu-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s;
    z-index: 999;
  }

  .menu-overlay.is-open {
    opacity: 1;
    visibility: visible;
  }

  /* Mega Menu Content */
  .mega-menu-content {
    position: absolute;
    top: 90px;
    left: 50%;
    transform: translateX(-50%);
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    width: 90%;
    max-width: 1200px;
    max-height: calc(100vh - 120px);
    overflow-y: auto;
  }

  .mega-menu-inner {
    display: flex;
  }

  .mega-menu-left {
    background: white;
    width: 260px;
    flex-shrink: 0;
    overflow: hidden;
  }

  .mega-menu-left .global-nav-sub {
    position: static;
    background: transparent;
    box-shadow: none;
    padding: 0;
    width: auto;
    max-height: none;
    opacity: 1;
    visibility: visible;
  }

  .mega-menu-right {
    flex: 1;
    background: white;
    padding: 30px;
  }

  /* 孫ナビがない場合の右側エリアのメッセージ */
  .mega-menu-message {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 200px;
    color: #666;
    font-size: 16px;
  }

  .mega-menu-grandchild {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    grid-gap: 10px 10px;
  }

  .mega-menu-grandchild li a {
    position: relative;
    display: block;
    text-align: left;
    background: transparent;
    border: solid 2px var(--color-light-main);
    border-radius: 10px;
    color: var(--color-main);
    text-decoration: none;
    font-size: 0.8rem;
    font-weight: 600;
    padding: 10px;
    transition: color 0.3s;
  }

  .mega-menu-grandchild a:hover {
    background: var(--color-light-main);
  }

  /* メガメニューを1列レイアウトにするクラス */
  .mega-menu-content.single-column .mega-menu-inner {
    flex-direction: column;
    gap: 20px;
  }

  .mega-menu-content.single-column {
    width: 500px;
  }

  .mega-menu-content.single-column .mega-menu-left {
    width: 100%;
  }

  .mega-menu-content.single-column .mega-menu-right {
    display: none;
  }
}

@media (min-width: 1400px) {
  .mega-menu-left {
    width: 280px;
  }

  .mega-menu-grandchild li a {
    font-size: 0.9rem;
  }
}


/* リンクオフ ---------------------*/
a.disabled-link {
  /* クリックを無効化 */
  pointer-events: none;
  /* カーソルを通常に */
  cursor: default;
  /* 親要素の文字色を継承 */
  color: inherit;
  /* 下線を消す */
  text-decoration: none;
}

a.disabled-link:hover,
a.disabled-link:focus,
a.disabled-link:active {
  /* hover なども無効 */
  color: inherit;
  text-decoration: none;
}

/* ハンバーガー ---------------------*/

@media screen and (max-width: 767px) {
  .mobile-menu-toggle {
    width: 30px;
    height: 30px;
    cursor: pointer;
    background: none;
    border: none;
    position: absolute;
    top: 10px;
    right: 10px;
    z-index: 1001;
  }

  .mobile-menu-toggle span {
    display: block;
    height: 3px;
    background: var(--color-main);
    margin: 3px 0;
    transition: all 0.3s;
    transform-origin: center;
  }

  .mobile-menu-toggle.is-open span:nth-child(1) {
    transform: rotate(45deg) translate(4px, 4px);
  }

  .mobile-menu-toggle.is-open span:nth-child(2) {
    opacity: 0;
  }

  .mobile-menu-toggle.is-open span:nth-child(3) {
    transform: rotate(-45deg) translate(4px, -4px);
  }

  /* Mobile Navigation Overlay */
  .mobile-nav-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background: white;
    transform: translateX(-100%);
    transition: transform 0.3s;
    overflow-y: auto;
    z-index: 998;
    padding-top: 50px;
  }
}

@media screen and (min-width: 768px) {
  .mobile-menu-toggle {
    display: none;
  }

  .mobile-nav-overlay {
    display: none;
  }
}


/* Body scroll lock */
.scroll-lock {
  overflow: hidden;
}

.scroll-lock {
  overflow: hidden;
  /* iOS Safari対応 */
  position: fixed;
  width: 100%;
  top: 0;
  left: 0;
}

/* iOSでスクロール防止のための追加スタイル */
.scroll-lock.is-ios {
  position: fixed;
  width: 100%;
}