/* ===== 25thmap page Mobile styles (max-width: 768px) ===== */
@media (max-width: 768px) {
  /* Allow page scroll on mobile when content exceeds viewport */
  html {
    height: 100%;
    overflow: hidden;
  }

  body {
    height: calc(100% + 1px); /* 1px余分に高さを持たせてアドレスバー折りたたみを誘発 */
    overflow: hidden;
    overscroll-behavior: none;
  }

  main {
    overflow-y: auto;
    min-height: 100vh;
    min-height: 100dvh;
    min-height: -webkit-fill-available;
    width: 100%;
  }

  .lang-link {
    font-size: 16px;
  }
  /* ===== Header adjustments (inside Swiper) ===== */
  .main-header {
    padding: 16px 20px 0;
  }

  .main-header .header-inner {
    padding: 0;
  }

  .header-nav {
    font-size: 12px;
    gap: 6px;
  }

  .header-lang {
    font-size: 12px;
  }

  /* Episode00スライドでは言語オプションボタンを非表示 */
  .artwork-carousel.is-episode00-slide .header-lang {
    display: none !important;
    visibility: hidden !important;
    pointer-events: none !important;
  }

  /* 1枚目（イントロ）では左矢印を非表示 */
  .artwork-carousel.is-intro-slide .swiper-button-prev {
    display: none;
  }

  /* 最後のスライド（Episode00）では右矢印を非表示 */
  .artwork-carousel.is-last-slide .swiper-button-next {
    display: none;
  }

  /* ===== Swiper carousel mobile size ===== */
  .artwork-carousel {
    width: 100%;
    min-height: 100vh;
    min-height: 100dvh; /* iOS 15.4+ 実際の表示領域に対応 */
    min-height: -webkit-fill-available; /* 旧iOS Safari フォールバック */
    background-color: #fff;
    overflow: visible;
  }

  .artwork-carousel .swiper-wrapper {
    height: auto;
  }

  .artwork-carousel .swiper-slide {
    height: auto;
    max-height: 100vh;
    max-height: 100dvh;
    max-height: calc(var(--vh, 1vh) * 100); /* JS で設定する実際のビューポート高さ */
    padding-top: 45px;
    padding-bottom: var(--slide-padding-bottom, 100px); /* JS でデバイス高さに応じて動的設定 */
    overflow-y: auto;
    overscroll-behavior: contain; /* スクロールチェーン防止: アドレスバーとの競合を回避 */
    -webkit-overflow-scrolling: touch; /* 旧iOS モメンタムスクロール有効化 */
    -webkit-transform: translateZ(0); /* GPU レイヤー強制で描画截断を回避 */
    touch-action: pan-y; /* 縦スクロールを明示的に許可 */
    box-sizing: border-box;
  }

  /* ===== Intro slide mobile ===== */
  .slide-intro-content {
    max-width: 100%;
    padding: 0 20px 80px;
  }

  .slide-intro-artist {
    font-size: 24px;
    margin-bottom: 16px;
  }

  .slide-intro-title {
    font-size: 36px;
    margin-bottom: 12px;
  }

  .slide-intro-title-number {
    /*font-size: 42px;*/
    margin-right: 8px;
  }

  .slide-intro-subtitle {
    font-size: 20px;
    margin-bottom: 24px;
  }

  .slide-intro-text {
    font-size: 16px;
    max-width: 100%;
  }

  /* ===== Episode slide mobile ===== */
  .slide-episode {
    padding: 45px 0;
    height: auto;
  }

  .slide-episode-wrapper {
    flex-direction: column;
    align-items: center;
    max-width: 100%;
    padding: 0 0;
  }
  .slide-episode-title .episode-number {
    font-size: 26px;
  }
  .slide-episode-title .episode-total {
    font-size: 18px;
}
  .slide-episode-image {
    max-width: 100%;
    margin-right: 0;
    margin-bottom: 60px;
    max-height: 375px;
  }

  .slide-episode-images-multiple {
    max-width: 100%;
    gap: 10px;
  }

  .slide-episode-image img {
    width: 100%;
    max-height: 375px;
  }

  .slide-episode-images-multiple img {
    width: 100%;
    max-height: 200px;
  }

  .slide-episode-content {
    width: 100%;
    max-width: 100%;
    padding: 0 30px 200px;
    overflow-y: visible;
    height: auto;
    -webkit-transform: translateZ(0); /* 旧iOS 描画截断回避 */
  }

  .slide-episode-title {
    font-size: 20px;
    margin-bottom: 16px;
  }

  .slide-episode-title .episode-title-another-label {
    font-weight: 400;
  }

  .slide-episode-text {
    font-size: 15px;
  }

  /* ===== Episode00 mobile（index.html#episode と同一表示） ===== */
  .slide-episode00 .container {
    width: 100%;
    padding: 0;
  }

  .slide-episode00 {
    padding: 60px 0 80px;
    height: auto;
    overflow-y: visible;
  }

  .slide-episode00 .section-title {
    font-size: 22px;
    font-weight: 700;
    text-align: center;
    margin-bottom: 24px;
  }

  .slide-episode00 .section-desc {
    font-size: 15px;
    text-align: left;
    margin-bottom: 24px;
    padding: 0 30px;
  }

  .slide-episode00 .episode-list {
    margin: 10px 30px;
    height: 409px;
    max-height: 409px;
    min-height: 409px;
    background-color: #E8E8E8;
    box-sizing: border-box;
    position: relative;
    overflow: hidden;
  }

  .slide-episode00 .episode-list-inner {
    height: 100%;
    overflow-y: scroll;
    overflow-x: hidden;
    display: flex;
    flex-direction: column;
    box-sizing: border-box;
    padding: 18px 0;
    margin-right: -8px;
    scrollbar-width: thin;
    scrollbar-color: #307B53 #E8E8E8;
    -webkit-overflow-scrolling: touch;
  }

  .slide-episode00 .episode-item {
    max-width: 80%;
    padding: 16px;
    background-color: #fff;
    border: 1px solid rgba(48, 123, 83, 0.3);
    border-radius: 12px;
    position: relative;
    transform: translateX(-10px);
  }

  .slide-episode00 .episode-text {
    font-size: 15px;
    line-height: 1.6;
    margin-bottom: 8px;
    margin: 10px;
  }

  .slide-episode00 .episode-author {
    display: block;
    margin-top: 8px;
    font-size: 15px;
    color: #307B53;
    text-align: right;
  }

  .slide-episode00 .episode-dot {
    position: absolute;
    top: 16px;
    right: 16px;
    width: 8px;
    height: 8px;
    background-color: #307B53;
  }

  .slide-episode00 .episode-meta {
    font-size: 12px;
    margin-top: 8px;
  }

  /* ===== SimpleBarモバイルスタイル（Episode00） ===== */
  .slide-episode00 .episode-list-inner .simplebar-content {
    background-color: #F0F1F1;
  }

  .slide-episode00 .episode-list-inner .simplebar-track.simplebar-vertical {
    background-color: rgba(230, 230, 230, 0.9);
    width: 20px !important;
    border-radius: 0;
    right: 10px;
  }

  .slide-episode00 .episode-list-inner .simplebar-scrollbar {
    width: 20px !important;
    right: 0;
  }

  .slide-episode00 .episode-list-inner .simplebar-scrollbar::before {
    background-color: #307B53;
    left: 0;
    right: 0;
    top: 0;
    bottom: 0;
    opacity: 1;
    margin: 0;
    border-radius: 10px;
  }

  /* ===== Fixed bottom 50px zone: background #E8E8E8, progress bar + nav in it ===== */
  .swiper-progress-bar {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: 65px;
    background-color: #F0F1F1;
    display: flex;
    z-index: 50;
    box-sizing: border-box;
  }

  .swiper-progress-bar .progress-bar {
    flex: 1;
    height: 15px;
  }

  /* ===== Nav buttons: right bottom corner (inside the 65px bar) ===== */
  .artwork-carousel .swiper-button-next,
  .artwork-carousel .swiper-button-prev {
    position: fixed !important;
    bottom: 0 !important;
    width: 20px;
    height: 65px;
    margin: 0 !important;
    transform: none !important;
    top: auto !important;
    left: auto !important;
    z-index: 51;
    background-size: 10px 20px !important;
  }

  .artwork-carousel .swiper-button-next {
    right: 40px !important;
    bottom: -7px !important;
  }

  .artwork-carousel .swiper-button-prev {
    right: 110px !important;
    bottom: -7px !important;
  }



  /* ===== Image modal mobile ===== */
  .image-modal-content {
    max-width: calc(100% - 40px);
    max-height: calc(100vh - 120px);
  }

  .image-modal-image {
    max-width: 100%;
    max-height: calc(100vh - 120px);
  }

}

@media (max-width: 768px) {
  /* SP: メニューボタン 右下に固定・スクロールしても常に同じ位置で全体が見える */
  .menu-toggle {
    position: fixed !important;
    top: auto !important;
    left: auto !important;
    right: max(15px, env(safe-area-inset-right, 0px)) !important;
    bottom: max(75px, env(safe-area-inset-bottom, 0px)) !important;
    z-index: 9999 !important;
    /* transform を削除して fixed がビューポート基準で効くようにする */
    transform: none !important;
    transition: opacity 0.25s ease !important;
    will-change: opacity;
  }
}