/* ===========================================
   スライドショーコンポーネント（モバイルファースト）
   =========================================== */

/* ヒーローセクション（モバイル） */
.hero {
  height: 100vh;
  height: 100dvh; /* Dynamic viewport height */
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  z-index: 2;
  contain: layout style paint;
}

.hero::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.4);
  z-index: 1;
}

.hero-slideshow {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
}

.hero-slide {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  transition: opacity var(--transition-slow);
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  will-change: opacity;
  transform: translateZ(0);
  backface-visibility: hidden;
  contain: strict;
}

.hero-slide.active {
  opacity: 1;
}

.hero-slide::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.4);
  z-index: 1;
}

/* デフォルト背景 */
.hero-slide:nth-child(1) {
  background: url("../../images/index-hero/slide1.webp") center/cover;
}

.hero-slide:nth-child(2) {
  background: url("../../images/index-hero/slide2.webp") center/cover;
}

.hero-slide:nth-child(3) {
  background: url("../../images/index-hero/slide3.webp") center/cover;
}

.hero-slide:nth-child(4) {
  background: url("../../images/index-hero/slide4.webp") center/cover;
}

.hero-slide:nth-child(5) {
  background: url("../../images/index-hero/slide5.webp") center/cover;
}

.hero-slide:nth-child(6) {
  background: url("../../images/ryuko-in.webp") center/cover;
}

.slideshow-controls {
  position: absolute;
  bottom: var(--spacing-xl-mobile);
  left: 50%;
  transform: translateX(-50%);
  z-index: 3;
  display: flex;
  gap: var(--spacing-md-mobile);
  padding: var(--spacing-sm);
}

.slide-dot {
  width: var(--touch-target-min);
  height: var(--touch-target-min);
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.4);
  border: 2px solid rgba(212, 175, 55, 0.6);
  cursor: pointer;
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  justify-content: center;
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
}

.slide-dot::before {
  content: "";
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: currentColor;
}

.slide-dot.active {
  background: var(--primary-gold);
  border-color: #d4af37;
  box-shadow: 0 0 10px rgba(212, 175, 55, 0.8);
}

.slide-info {
  position: absolute;
  bottom: calc(6rem + var(--spacing-xl-mobile));
  right: var(--spacing-lg-mobile);
  z-index: 3;
  writing-mode: vertical-rl;
  text-orientation: upright;
  color: rgba(255, 255, 255, 0.8);
  font-size: var(--font-sm-mobile);
  letter-spacing: 2px;
  opacity: 0;
  transition: opacity var(--transition-slow);
  display: none; /* モバイルでは非表示 */
}

.slide-info.active {
  opacity: 1;
}

.hero-content {
  text-align: center;
  z-index: 3;
  max-width: var(--container-sm);
  padding: 0 var(--spacing-lg-mobile);
  width: 100%;
}

.hero-content h1 {
  font-size: 2.2rem; /* モバイル用サイズに変更（35px） */
  font-weight: var(--font-weight-bold);
  letter-spacing: 0.05em; /* 文字間隔も調整 */
  margin: 1rem auto; /* 左右を auto に変更 */
  text-shadow: var(--shadow-text);
  font-feature-settings: "kern" 1, "jp04" 1;
  line-height: 1.3; /* 行間を少し広く */
  text-rendering: optimizeLegibility;
  word-break: keep-all;
  overflow-wrap: normal;
  text-align: center; /* 明示的に中央配置 */
  width: 100%; /* 幅を100%に設定 */
  max-width: 100%; /* 最大幅制限 */
}

.hero-subtitle {
  writing-mode: horizontal-tb; /* モバイルでは横書き */
  font-size: var(--font-base-mobile);
  font-weight: var(--font-weight-medium);
  letter-spacing: 0.1em;
  color: var(--primary-gold);
  margin: 0 auto var(--spacing-md-mobile);
  opacity: 0.95;
  text-shadow: var(--shadow-text);
}

.hero-description {
  font-size: var(--font-sm-mobile);
  font-weight: var(--font-weight-normal);
  letter-spacing: 0.03em;
  line-height: 1.6;
  margin: 0 auto var(--spacing-lg-mobile);
  color: rgba(255, 255, 255, 0.95);
  opacity: 0.95;
  text-shadow: var(--shadow-text);
  max-width: 100%;
  font-feature-settings: "palt" 1, "kern" 1;
  text-rendering: optimizeLegibility;
  word-break: auto-phrase;
}

/* ===============================================
   タブレット以上で適用（モバイルファースト）
   =============================================== */

@media (min-width: 768px) {
  /* --bp-md */
  .slideshow-controls {
    bottom: 2rem; /* スライドコントロールを下に配置 */
    gap: var(--spacing-md); /* ドット間隔を少し広く */
  }

  .slide-dot {
    width: 36px; /* デスクトップでは少し小さく */
    height: 36px;
    border-width: 1.5px; /* 細めのボーダー */
  }

  .slide-dot::before {
    width: 10px; /* 内側の点も少し小さく */
    height: 10px;
  }

  .slide-info {
    display: block;
    bottom: 6rem;
    right: 3rem; /* 元の位置に戻す */
    font-size: 0.9rem; /* 元のサイズに戻す */
    writing-mode: vertical-rl;
    text-orientation: upright;
  }

  .hero-content {
    max-width: 600px;
    padding: 0 var(--spacing-2xl);
  }

  .hero-content h1 {
    font-size: 5.5rem !important; /* 元のサイズに復元、強制適用 */
    margin: 2rem auto !important; /* 左右を auto に変更、強制適用 */
    letter-spacing: 0.12em !important;
    text-align: center !important; /* 明示的に中央配置、強制適用 */
    width: 100% !important; /* 幅を100%に設定、強制適用 */
  }

  .hero-subtitle {
    writing-mode: vertical-rl;
    text-orientation: upright;
    font-size: 1.3rem;
    font-weight: 500;
    letter-spacing: 0.3em;
    color: #d4af37;
    margin: 0 auto 2rem;
    height: auto; /* 高さを自動に変更 */
    opacity: 0.95;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.5);
    white-space: pre-line; /* HTMLの<br>タグを有効にする */
    line-height: 1.5; /* 行間を調整 */
  }

  .hero-description {
    font-size: 1.25rem;
    font-weight: 400;
    letter-spacing: 0.1em;
    line-height: 2.3;
    margin: 0 auto 3rem;
    color: rgba(255, 255, 255, 0.95);
    opacity: 0.95;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.5);
    max-width: 420px;
    font-feature-settings: "palt" 1, "kern" 1;
    text-rendering: optimizeLegibility;
    word-break: auto-phrase;
  }
}

@media (min-width: 1024px) {
  /* --bp-lg */
  .slideshow-controls {
    bottom: 2.5rem; /* デスクトップでスライドコントロールを下に配置 */
  }

  .slide-dot {
    transition: all var(--transition-fast);
  }

  .slide-dot:hover {
    transform: scale(1.1);
    border-color: var(--primary-gold);
    background: rgba(255, 255, 255, 0.6);
  }

  .slide-dot.active:hover {
    background: var(--accent-gold); /* アクティブ時は金色を維持 */
    border-color: var(--accent-gold);
    box-shadow: 0 0 15px rgba(212, 175, 55, 1);
  }

  .hero-content h1 {
    font-size: 6.5rem !important; /* より大きく、強制適用 */
    font-weight: 700 !important;
    letter-spacing: 0.12em !important;
    margin: 2rem auto !important; /* 左右を auto に変更、強制適用 */
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.7) !important;
    text-align: center !important; /* 明示的に中央配置、強制適用 */
    width: 100% !important; /* 幅を100%に設定、強制適用 */
  }

  .hero-subtitle {
    font-size: 2rem !important; /* より大きく、強制適用 */
    font-weight: 500 !important;
    letter-spacing: 0.3em !important;
    color: #d4af37 !important;
    margin: 0 auto 10rem !important;
    height: auto !important; /* 高さを自動に変更、強制適用 */
    opacity: 0.95 !important;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.5) !important;
    white-space: pre-line !important; /* HTMLの<br>タグを有効にする、強制適用 */
    line-height: 1.5 !important; /* 行間を調整、強制適用 */
  }

  .hero-description {
    font-size: 1.4rem !important; /* より大きく、強制適用 */
    font-weight: 400 !important;
    letter-spacing: 0.1em !important;
    line-height: 2.3 !important;
    margin: 0 auto 1rem !important;
    color: rgba(255, 255, 255, 0.95) !important;
    opacity: 0.95 !important;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.5) !important;
    max-width: 420px !important;
    font-feature-settings: "palt" 1, "kern" 1 !important;
    text-rendering: optimizeLegibility !important;
    word-break: auto-phrase !important;
  }
}

/* パフォーマンス最適化 */
@media (prefers-reduced-motion: reduce) {
  .hero-slide {
    transition: none;
  }

  .slide-info {
    transition: none;
  }
}

/* ===============================================
   英語版ページ用オーバーライド
   =============================================== */

/* 英語ページでは常に横書き */
html[lang="en"] .hero-subtitle,
html[lang="en"] .hero-description,
html[lang="en"] .slide-info {
  writing-mode: horizontal-tb !important;
  text-orientation: mixed !important;
}

/* 英語版のサブタイトルとdescriptionの調整 */
@media (min-width: 768px) {
  html[lang="en"] .hero-subtitle {
    writing-mode: horizontal-tb !important;
    text-orientation: mixed !important;
    height: auto !important;
    margin: 0 auto 1.5rem !important;
  }

  html[lang="en"] .hero-description {
    writing-mode: horizontal-tb !important;
    text-orientation: mixed !important;
  }

  html[lang="en"] .slide-info {
    writing-mode: horizontal-tb !important;
    text-orientation: mixed !important;
    bottom: 3rem !important;
    right: 3rem !important;
  }
}

@media (min-width: 1024px) {
  html[lang="en"] .hero-subtitle {
    writing-mode: horizontal-tb !important;
    text-orientation: mixed !important;
    height: auto !important;
    margin: 0 auto 2rem !important;
  }

  html[lang="en"] .hero-description {
    writing-mode: horizontal-tb !important;
    text-orientation: mixed !important;
  }
}