/**
 * Header Slider - Custom Styles (v2.7.1)
 * - 画像/動画 両対応
 * - SPは CSS の aspect-ratio と JS(heightRatio) を同期（39/50）
 * - overlay は CSS変数 --overlay-opacity（未指定時 0.3）
 * - WooCommerce / Astra 互換配慮
 */

/* ========================================
   メインスライダー（共通）
======================================== */
#header_slider {
  position: relative;
  width: 100%;
  overflow: visible;
  background: transparent;
  padding: 40px 0 100px;
  z-index: 5;
}

#header_slider .inner {
  position: relative;
  max-width: 100%;
  margin: 0 auto;
}

#header_slider .splide {
  position: relative;
  margin: 0 auto;
}

#header_slider .wrapper {
  position: relative;
}

#header_slider .splide__track {
  overflow: visible; /* 角丸やオーバーレイが切れないように */
  z-index: 1;
}

#header_slider .splide__list {
  display: flex;
  align-items: center;
  gap: 10px; /* スライドの視覚的余白（Splideのgapとは独立） */
}

#header_slider .splide__slide {
  position: relative;
  overflow: hidden;
  opacity: 0.35; /* 非アクティブを薄く */
  transition: opacity 0.4s ease;
  z-index: 1;
}

#header_slider .splide__slide.is-active {
  opacity: 1;
  z-index: 2;
}

/* メイン枠（PC実寸に合わせる） */
#header_slider .slide_inner {
  position: relative;
  width: 1100px;
  height: 600px;
  margin: 0 auto;
  /* モバイル優先：角丸なし（PCでのみ付与） */
  border-radius: 0;
  overflow: hidden;
  /* overlay の既定値（PHPが style で上書き） */
  --overlay-opacity: 0.3;
}

/* 画像・動画 共通 */
#header_slider .image {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
}

#header_slider .image img,
#header_slider .image video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  display: block;
}

#header_slider .image .overlay {
  position: absolute;
  inset: 0;
  z-index: 2;
  /* CSS変数を優先。PHPのinline styleがあればそちらが適用される */
  background: rgba(0, 0, 0, var(--overlay-opacity, 0.3));
}

/* 動画用：ポインター操作を防ぐ（UIの重なり対策） */
#header_slider .video-container {
  background: #000;
}
#header_slider .video-container video {
  pointer-events: none;
}

/* プレースホルダー画像の視覚差別化 */
#header_slider .image img[src*="placeholder"],
#header_slider .image img[src^="data:image/svg"] {
  opacity: 0.5;
  filter: grayscale(100%);
}

/* テキストブロック */
#header_slider .slide_content {
  position: absolute;
  inset: 0;
  z-index: 3;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  color: #fff;
  padding: 40px;
}

#header_slider .sub_catch {
  font-size: 14px;
  letter-spacing: 0.1em;
  margin-bottom: 10px;
  opacity: 0.9;
  text-transform: uppercase;
}

#header_slider .title {
  font-size: 48px;
  font-weight: 700;
  margin: 0 0 20px 0;
  line-height: 1.2;
  text-shadow: 0 2px 4px rgba(0,0,0,0.3);
}

#header_slider .catch {
  font-size: 18px;
  line-height: 1.6;
  margin: 0 0 30px 0;
  max-width: 600px;
  text-shadow: 0 1px 2px rgba(0,0,0,0.3);
}

#header_slider .link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 12px 30px;
  background: rgba(255, 255, 255, 0.2);
  border: 2px solid #fff;
  color: #fff;
  text-decoration: none;
  border-radius: 4px;
  transition: all 0.3s ease;
  font-weight: 600;
  backdrop-filter: blur(5px);
}

#header_slider .link:hover {
  background: rgba(255, 255, 255, 0.3);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0,0,0,0.2);
}

#header_slider .arrow_right {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-top: 2px solid #fff;
  border-right: 2px solid #fff;
  transform: rotate(45deg);
  transition: transform 0.3s ease;
}
#header_slider .link:hover .arrow_right {
  transform: rotate(45deg) translateX(3px);
}

/* ========================================
   サムネイルナビ
======================================== */
#header_slider_navi {
  position: absolute;
  bottom: -56px;           /* PCではメインの下に配置 */
  left: 50%;
  transform: translateX(-50%);
  margin-left: 290px;      /* 仕様上：やや右寄せ */
  z-index: 10;
  width: 513px;
  height: 140px;
  background: #fff;
  border-radius: 0;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
  box-sizing: border-box;
  overflow: hidden;
}

#header_slider_navi .splide,
#header_slider_navi .splide__track {
  width: 100%;
  height: 100%;
  overflow: hidden;
}

#header_slider_navi .splide__list {
  display: flex;
  gap: 0;
  width: 100%;
  height: 100%;
  align-items: center;
  justify-content: center;
}

#header_slider_navi .splide__slide {
  width: 163px !important;
  height: 116px !important;
  border: none;
  border-radius: 0; /* 常にフラット */
  box-shadow: none;
  overflow: hidden;
  cursor: pointer;
  position: relative;
  transition: transform 0.3s ease;
  z-index: 1;
}
#header_slider_navi .splide__slide:hover {
  transform: scale(1.05);
}
#header_slider_navi .splide__slide:focus {
  outline: 2px solid #007bff;
  outline-offset: -2px;
}

#header_slider_navi .image {
  position: relative;
  width: 100%;
  height: 100%;
  overflow: hidden;
}
#header_slider_navi .image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

#header_slider_navi .overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  transition: opacity 0.3s ease;
  pointer-events: none;
  z-index: 1;
}

#header_slider_navi .splide__slide.is-active .overlay {
  opacity: 0;
}
#header_slider_navi .splide__slide:hover .overlay {
  opacity: 0.3;
}

/* ========================================
   プログレスバー
======================================== */
.progress_bar {
  position: absolute;
  bottom: -40px;
  left: 50%;
  transform: translateX(-50%);
  margin-left: -300px; /* 仕様上：やや左寄せ */
  width: 400px;
  height: 4px;
  background: rgba(140, 140, 140, 0.25);
  border-radius: 2px;
  overflow: hidden;
  z-index: 20;
  pointer-events: none;
}
.progress_bar .bar {
  width: 0%;
  height: 100%;
  background: #8C8C8C;
  transition: width 0.3s linear;
  border-radius: 2px;
}

/* ========================================
   レスポンシブ
======================================== */
@media (max-width: 1400px) {
  /* メインサイズは JS 側で fixedWidth/Height を 900x490 に */
  #header_slider_navi {
    margin-left: 230px;
    bottom: -56px;
  }
  .progress_bar {
    margin-left: -280px;
    width: 360px;
    bottom: -40px;
  }
}

@media (max-width: 1100px) {
  #header_slider_navi {
    margin-left: 180px;
  }
  .progress_bar {
    margin-left: -250px;
    width: 320px;
    bottom: -40px;
  }
}

@media (max-width: 768px) {
  #header_slider {
    padding: 0px 0 20px;
  }

  #header_slider .splide__list {
    gap: 0;
  }

  /* SP は CSS と JS を同期：aspect-ratio 39/50, JS は heightRatio: 50/39 */
  #header_slider .slide_inner {
    width: 100%;
    max-width: 100%;
    height: auto;
    aspect-ratio: 39 / 50;
    border-radius: 0; /* SPは常にフラット */
  }

  /* テキスト縮小 */
  #header_slider .title { font-size: 32px; margin-bottom: 15px; }
  #header_slider .sub_catch { font-size: 12px; margin-bottom: 8px; }
  #header_slider .catch { font-size: 16px; margin-bottom: 25px; }
  #header_slider .link { padding: 10px 24px; font-size: 14px; }
  #header_slider .slide_content { padding: 20px; }

  /* サムネイル（SP） */
  #header_slider_navi {
    margin-left: 0;
    left: calc(45.6vw); /* 仕様の見た目合わせ */
    transform: none;
    bottom: -20px;
    width: auto;
    height: auto;
    background: #fff;
    padding: 2px;
    box-shadow: 0 1px 4px rgba(0,0,0,0.1);
  }
  #header_slider_navi .splde__list { gap: 0; }
  #header_slider_navi .splide__slide {
    width: 60px !important;
    height: 40px !important;
  }

  /* プログレスバー（SP） */
  .progress_bar {
    left: 30px;
    transform: none;
    margin-left: 0;
    width: 100px;
    height: 2px;
    bottom: -20px;
  }
}

@media (max-width: 480px) {
  #header_slider .title { font-size: 24px; }
  #header_slider .catch { font-size: 14px; }
  #header_slider .link { padding: 8px 20px; font-size: 13px; }
}

/* ========================================
   WooCommerce / Astra 互換
======================================== */
.ast-container #header_slider,
.site-content #header_slider {
  margin-left: auto;
  margin-right: auto;
}
.woocommerce #header_slider,
.woocommerce-page #header_slider {
  margin-bottom: 40px;
}
.ast-header-break-point #header_slider {
  margin-top: 0px;
}

/* ========================================
   アクセシビリティ & モーション
======================================== */
#header_slider .splide__slide:focus-visible,
#header_slider_navi .splide__slide:focus-visible {
  outline: 2px solid #007bff;
  outline-offset: -2px;
  z-index: 10;
}

@media (prefers-reduced-motion: reduce) {
  #header_slider .splide__slide,
  #header_slider .link,
  #header_slider_navi .splide__slide,
  #header_slider_navi .overlay,
  .progress_bar .bar {
    transition: none;
  }
  #header_slider .link:hover { transform: none; }
}

/* ========================================
   読み込み中
======================================== */
#header_slider.is-loading {
  min-height: 600px; /* PC 実寸基準 */
  display: flex;
  align-items: center;
  justify-content: center;
}
#header_slider.is-loading::after {
  content: "読み込み中...";
  font-size: 18px;
  color: #999;
}

/* ========================================
   PCだけ角丸（>=769px）
   - メインだけに角丸が付くようにセレクタを厳密化
   - サムネイル側は明示的にフラットを維持
======================================== */
@media (min-width: 769px) {
  /* ▼ メインの .splide を特定（inner/ wrapper 直下にあるケースを両対応） */
  #header_slider .inner > .splide .splide__slide,
  #header_slider .wrapper > .splide .splide__slide {
    border-radius: 12px;
    overflow: hidden;
  }
  #header_slider .slide_inner {
    border-radius: inherit;
    overflow: hidden;
  }
  #header_slider .image img,
  #header_slider .image video,
  #header_slider .image .overlay {
    border-radius: inherit;
  }

  /* ▲ もし構造が異なる場合も、サムネイル側は常にフラットを強制 */
  #header_slider_navi .splide__slide {
    border-radius: 0 !important;
    overflow: hidden;
  }

  /* Safari / GPU合成対策（動画の角が欠ける/滲む場合） */
  #header_slider .image video {
    -webkit-mask-image: -webkit-radial-gradient(white, black);
            mask-image: radial-gradient(#fff, #fff);
  }

  /* 背面の四角が見える場合のみ有効化 */
  /* #header_slider .splide__track { overflow: hidden; } */
}