/* Noto Sans JP (日本語用の極細・標準ウェイト) の読み込み */
@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+JP:wght@300;400&display=swap');

/* ==========================================================================
   1. デザインシステム (CSS変数) の定義
   ========================================================================== */
:root {
  /* 配色 */
  --color-white: #FFFFFF;
  --color-black: #0A0A0A;
  --color-gray: #6B7280;
  --color-light-gray: #F9FAFB;
  --color-border: #E5E7EB;

  /* フォントファミリー */
  --font-base: 'Helvetica Neue', -apple-system, BlinkMacSystemFont, Arial, 'Noto Sans JP', sans-serif;

  /* トランジション（アニメーションのイージングと時間） */
  --transition-smooth: 0.4s cubic-bezier(0.25, 1, 0.5, 1);
  --transition-fast: 0.2s ease-out;

  /* 最大幅 */
  --container-max-width: 1400px;
  
  /* ヘッダーの高さ */
  --header-height: 80px;
}

/* ==========================================================================
   2. リセットCSS & グローバルスタイル
   ========================================================================== */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  background-color: var(--color-white);
  color: var(--color-black);
  font-family: var(--font-base);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
}

a {
  color: inherit;
  text-decoration: none;
  transition: opacity var(--transition-fast);
}

a:hover {
  opacity: 0.7;
}

button {
  background: none;
  border: none;
  font-family: inherit;
  color: inherit;
  cursor: pointer;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* ==========================================================================
   3. レイアウト & 共通パーツ (ヘッダー・フッター・コンテナ)
   ========================================================================== */
.container {
  width: 100%;
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 40px;
}

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

/* ヘッダー */
.main-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  background-color: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(10, 10, 10, 0.05);
  z-index: 100;
  display: flex;
  align-items: center;
  transition: transform 0.3s ease;
}

.header-container {
  display: grid;
  grid-template-columns: 1fr 2fr 1fr; /* 左:メニュー, 中央:ロゴ, 右:カート・検索 */
  align-items: center;
  width: 100%;
}

/* メニューボタン（ハンバーガー） */
.menu-btn {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  width: 24px;
  height: 14px;
  justify-self: start;
}

.menu-btn span {
  display: block;
  width: 100%;
  height: 1px;
  background-color: var(--color-black);
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

/* ブランドロゴ */
.brand-logo {
  font-size: 20px;
  font-weight: 200; /* 極細ウェイト */
  letter-spacing: 0.25em;
  text-align: center;
  text-transform: uppercase;
}

/* ヘッダー右側アイコン */
.header-actions {
  display: flex;
  gap: 20px;
  justify-self: end;
  align-items: center;
}

.header-icon {
  font-size: 14px;
  letter-spacing: 0.1em;
  position: relative;
  font-weight: 300;
}

.cart-count {
  position: absolute;
  top: -8px;
  right: -12px;
  font-size: 9px;
  background-color: var(--color-black);
  color: var(--color-white);
  border-radius: 50%;
  width: 16px;
  height: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 400;
}

/* メインコンテンツ表示エリア */
.main-content {
  margin-top: var(--header-height);
  flex-grow: 1;
}

/* ページ遷移フェードインアニメーション */
.page-fade-in {
  animation: pageFadeIn 0.8s cubic-bezier(0.25, 1, 0.5, 1) forwards;
}

@keyframes pageFadeIn {
  from {
    opacity: 0;
    transform: translateY(15px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* フッター */
.main-footer {
  background-color: var(--color-light-gray);
  border-top: 1px solid var(--color-border);
  padding: 80px 0 40px;
  margin-top: 120px;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 40px;
  margin-bottom: 60px;
}

@media (max-width: 992px) {
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 576px) {
  .footer-grid {
    grid-template-columns: 1fr;
  }
}

.footer-col h4 {
  font-size: 12px;
  font-weight: 400;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: 24px;
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: 12px;
}

.footer-links a {
  font-size: 13px;
  color: var(--color-gray);
  font-weight: 300;
}

.footer-bottom {
  border-top: 1px solid rgba(0,0,0,0.05);
  padding-top: 30px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

@media (max-width: 768px) {
  .footer-bottom {
    flex-direction: column;
    gap: 15px;
    text-align: center;
  }
}

.copyright {
  font-size: 11px;
  color: var(--color-gray);
  letter-spacing: 0.05em;
  font-weight: 300;
}

/* ==========================================================================
   4. 最新のCSS API によるフルスクリーン・ポップオーバーメニュー
   ========================================================================== */
[popover] {
  border: none;
  width: 100vw;
  height: 100vh;
  background-color: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(10px);
  padding: 40px;
  box-sizing: border-box;

  /* トップレイヤー切り替え時のアニメーション設定 */
  opacity: 0;
  transition-property: opacity, display, overlay;
  transition-duration: 0.5s;
  transition-timing-function: cubic-bezier(0.25, 1, 0.5, 1);
  transition-behavior: allow-discrete;
}

/* 開いた状態のスタイル */
[popover]:popover-open {
  opacity: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;

  /* 表示が開始される直前の初期スタイルを適用 */
  @starting-style {
    opacity: 0;
  }
}

/* ポップオーバーメニュー内のリンク */
.menu-nav {
  display: flex;
  flex-direction: column;
  gap: 30px;
  text-align: center;
}

.menu-nav-link {
  font-size: 32px;
  font-weight: 200;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-black);
}

.menu-close-btn {
  position: absolute;
  top: 30px;
  left: 40px;
  font-size: 12px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  font-weight: 300;
  padding: 10px 0;
}

/* ユーザーが「視覚効果の削減」を好む場合の対応 */
@media (prefers-reduced-motion: reduce) {
  [popover] {
    transition-duration: 0.1s;
  }
}

/* ==========================================================================
   5. ネイティブ <dialog> によるライトボックス (ルックブック用)
   ========================================================================== */
dialog.lightbox-dialog {
  border: none;
  background: transparent;
  max-width: 90vw;
  max-height: 90vh;
  margin: auto;
  overflow: visible;

  /* トランジション設定 */
  opacity: 0;
  transform: scale(0.95);
  transition-property: opacity, transform, display, overlay;
  transition-duration: 0.4s;
  transition-timing-function: cubic-bezier(0.25, 1, 0.5, 1);
  transition-behavior: allow-discrete;
}

dialog.lightbox-dialog[open] {
  opacity: 1;
  transform: scale(1);

  @starting-style {
    opacity: 0;
    transform: scale(0.95);
  }
}

/* ダイアログの背景 (すりガラス効果) */
dialog.lightbox-dialog::backdrop {
  background-color: rgba(10, 10, 10, 0);
  backdrop-filter: blur(0px);
  transition: display 0.4s allow-discrete, overlay 0.4s allow-discrete, background-color 0.4s ease-out, backdrop-filter 0.4s ease-out;
}

dialog.lightbox-dialog[open]::backdrop {
  background-color: rgba(10, 10, 10, 0.8);
  backdrop-filter: blur(10px);

  @starting-style {
    background-color: rgba(10, 10, 10, 0);
    backdrop-filter: blur(0px);
  }
}

.lightbox-content {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}

.lightbox-img {
  max-width: 100%;
  max-height: 85vh;
  object-fit: contain;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.3);
}

.lightbox-close {
  position: absolute;
  top: -40px;
  right: 0;
  color: var(--color-white);
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-weight: 300;
}

/* ==========================================================================
   6. ボタン & 汎用コンポーネントの基本設計
   ========================================================================== */
/* ミニマルボタン (アンダーライン・ホバーアニメーション) */
.btn-underline {
  font-size: 12px;
  font-weight: 400;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  padding: 8px 0;
  position: relative;
  display: inline-block;
}

.btn-underline::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 1px;
  background-color: var(--color-black);
  transform: scaleX(1);
  transform-origin: left;
  transition: transform var(--transition-smooth);
}

.btn-underline:hover::after {
  transform: scaleX(0);
  transform-origin: right;
}

/* ベタ塗り黒ボタン (モード感) */
.btn-solid {
  background-color: var(--color-black);
  color: var(--color-white);
  padding: 16px 32px;
  font-size: 12px;
  font-weight: 400;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  border: 1px solid var(--color-black);
  transition: background-color var(--transition-fast), color var(--transition-fast);
}

.btn-solid:hover {
  background-color: var(--color-white);
  color: var(--color-black);
}

/* 枠線ボタン */
.btn-outline {
  border: 1px solid var(--color-black);
  background-color: transparent;
  color: var(--color-black);
  padding: 16px 32px;
  font-size: 12px;
  font-weight: 400;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  transition: background-color var(--transition-fast), color var(--transition-fast);
}

.btn-outline:hover {
  background-color: var(--color-black);
  color: var(--color-white);
}

/* ==========================================================================
   7. 商品カードコンポーネント (ホバーで別画像切替)
   ========================================================================== */
.product-card {
  display: flex;
  flex-direction: column;
  gap: 16px;
  position: relative;
}

.product-image-wrap {
  position: relative;
  width: 100%;
  padding-bottom: 130%; /* 縦長アパレル比率 */
  overflow: hidden;
  background-color: var(--color-light-gray);
}

.product-image-wrap img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: opacity var(--transition-smooth), transform var(--transition-smooth);
}

/* ホバー用の別アングル画像 */
.product-img-hover {
  opacity: 0;
  z-index: 2;
}

/* ホバー時の挙動 */
.product-card:hover .product-img-primary {
  opacity: 0;
}

.product-card:hover .product-img-hover {
  opacity: 1;
}

.product-card:hover .product-image-wrap img {
  transform: scale(1.02);
}

.product-info {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.product-brand {
  font-size: 10px;
  font-weight: 400;
  color: var(--color-gray);
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

.product-name {
  font-size: 13px;
  font-weight: 300;
  color: var(--color-black);
}

.product-price {
  font-size: 13px;
  font-weight: 400;
  color: var(--color-black);
  margin-top: 2px;
}

/* ==========================================================================
   8. ページ別詳細スタイル (各ビューで描画されるコンテンツ用)
   ========================================================================== */

/* ■ 8-1. トップページ用スタイル */
.hero-section {
  height: calc(100vh - var(--header-height));
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 1;
}

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(10, 10, 10, 0.15); /* ほのかに暗くしてテキストを読みやすく */
  z-index: 2;
}

.hero-content {
  position: relative;
  z-index: 3;
  text-align: center;
  color: var(--color-white);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
}

.hero-title {
  font-size: 48px;
  font-weight: 200;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  line-height: 1.2;
}

@media (max-width: 768px) {
  .hero-title {
    font-size: 32px;
    letter-spacing: 0.2em;
  }
}

.hero-btn {
  border: 1px solid var(--color-white);
  color: var(--color-white);
  padding: 16px 40px;
  font-size: 11px;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  transition: background-color var(--transition-fast), color var(--transition-fast);
}

.hero-btn:hover {
  background-color: var(--color-white);
  color: var(--color-black);
  opacity: 1;
}

/* 新着商品セクション */
.section-padding {
  padding: 120px 0;
}

@media (max-width: 768px) {
  .section-padding {
    padding: 80px 0;
  }
}

.section-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: 60px;
}

.section-title {
  font-size: 24px;
  font-weight: 200;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

.section-link {
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-gray);
  border-bottom: 1px solid var(--color-border);
  padding-bottom: 4px;
}

.products-grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px;
}

@media (max-width: 992px) {
  .products-grid-4 {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }
}

/* コンセプトセクション */
.concept-wrap {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 80px;
  align-items: center;
}

@media (max-width: 992px) {
  .concept-wrap {
    grid-template-columns: 1fr;
    gap: 40px;
  }
}

.concept-text {
  display: flex;
  flex-direction: column;
  gap: 30px;
}

.concept-title {
  font-size: 32px;
  font-weight: 200;
  line-height: 1.4;
  letter-spacing: 0.1em;
}

.concept-description {
  font-size: 14px;
  line-height: 1.8;
  color: var(--color-gray);
  font-weight: 300;
}

/* ルックブックプレビュー */
.lookbook-preview-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

@media (max-width: 768px) {
  .lookbook-preview-grid {
    grid-template-columns: 1fr;
    gap: 15px;
  }
}

.lookbook-preview-item {
  position: relative;
  overflow: hidden;
  padding-bottom: 140%;
}

.lookbook-preview-item img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-smooth);
}

.lookbook-preview-item:hover img {
  transform: scale(1.05);
}

/* ニュースレターセクション */
.newsletter-section {
  background-color: var(--color-light-gray);
  padding: 100px 0;
  text-align: center;
}

.newsletter-content {
  max-width: 600px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
}

.newsletter-title {
  font-size: 20px;
  font-weight: 300;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

.newsletter-description {
  font-size: 13px;
  color: var(--color-gray);
  font-weight: 300;
}

.newsletter-form {
  display: flex;
  width: 100%;
  margin-top: 10px;
  border-bottom: 1px solid var(--color-black);
}

.newsletter-input {
  flex-grow: 1;
  border: none;
  background: transparent;
  padding: 16px 0;
  font-size: 13px;
  font-family: inherit;
  font-weight: 300;
  color: var(--color-black);
}

.newsletter-input:focus {
  outline: none;
}

.newsletter-submit {
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  font-weight: 400;
  padding: 16px 20px;
}

/* ■ 8-2. 商品一覧ページ用スタイル */
.page-title-wrap {
  padding: 80px 0 40px;
  text-align: center;
}

.page-title {
  font-size: 28px;
  font-weight: 200;
  letter-spacing: 0.25em;
  text-transform: uppercase;
}

.shop-controls {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 50px;
  border-bottom: 1px solid var(--color-border);
  padding-bottom: 20px;
}

@media (max-width: 768px) {
  .shop-controls {
    flex-direction: column;
    gap: 20px;
    align-items: flex-start;
  }
}

.filter-group {
  display: flex;
  gap: 24px;
  overflow-x: auto;
  width: 100%;
  padding-bottom: 5px;
}

.filter-btn {
  font-size: 11px;
  font-weight: 300;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-gray);
  white-space: nowrap;
  position: relative;
  padding-bottom: 4px;
}

.filter-btn.active {
  color: var(--color-black);
  font-weight: 400;
}

.filter-btn.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 1px;
  background-color: var(--color-black);
}

/* ソートUI */
.sort-select {
  border: none;
  font-family: inherit;
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  background: transparent;
  color: var(--color-black);
  cursor: pointer;
  outline: none;
  padding: 5px 20px 5px 0;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='8' height='5' viewBox='0 0 8 5'%3E%3Cpath fill='%23000' d='M0 0l4 4 4-4z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right center;
  appearance: none;
  -webkit-appearance: none;
}

.products-grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 60px 40px;
}

@media (max-width: 768px) {
  .products-grid-3 {
    grid-template-columns: repeat(2, 1fr);
    gap: 30px 15px;
  }
}

/* ■ 8-3. 商品詳細ページ用スタイル */
.detail-wrap {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 80px;
  padding: 60px 0;
}

@media (max-width: 992px) {
  .detail-wrap {
    grid-template-columns: 1fr;
    gap: 40px;
  }
}

.detail-gallery {
  display: flex;
  gap: 20px;
}

@media (max-width: 576px) {
  .detail-gallery {
    flex-direction: column-reverse;
  }
}

.detail-thumbnails {
  display: flex;
  flex-direction: column;
  gap: 15px;
  width: 80px;
  flex-shrink: 0;
}

@media (max-width: 576px) {
  .detail-thumbnails {
    flex-direction: row;
    width: 100%;
  }
}

.thumbnail-btn {
  aspect-ratio: 3/4;
  overflow: hidden;
  background-color: var(--color-light-gray);
  border: 1px solid transparent;
  transition: border-color var(--transition-fast);
}

.thumbnail-btn.active {
  border-color: var(--color-black);
}

.thumbnail-btn img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.detail-main-image {
  flex-grow: 1;
  aspect-ratio: 3/4;
  background-color: var(--color-light-gray);
  overflow: hidden;
}

.detail-main-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: opacity var(--transition-fast);
}

.detail-info {
  display: flex;
  flex-direction: column;
  gap: 30px;
}

.detail-header {
  border-bottom: 1px solid var(--color-border);
  padding-bottom: 20px;
}

.detail-brand {
  font-size: 11px;
  color: var(--color-gray);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  margin-bottom: 8px;
}

.detail-name {
  font-size: 24px;
  font-weight: 300;
  margin-bottom: 12px;
  letter-spacing: 0.05em;
}

.detail-price {
  font-size: 18px;
  font-weight: 400;
}

/* スウォッチ・サイズセレクタ */
.selector-title {
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-gray);
  margin-bottom: 12px;
}

.color-swatches {
  display: flex;
  gap: 12px;
}

.color-swatch {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: 1px solid var(--color-border);
  position: relative;
  padding: 2px;
}

.color-swatch::after {
  content: '';
  display: block;
  width: 100%;
  height: 100%;
  border-radius: 50%;
  background-color: var(--swatch-color);
}

.color-swatch.active {
  border-color: var(--color-black);
}

.size-buttons {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.size-btn {
  border: 1px solid var(--color-border);
  padding: 12px 20px;
  font-size: 11px;
  letter-spacing: 0.05em;
  min-width: 60px;
  text-align: center;
  transition: border-color var(--transition-fast), background-color var(--transition-fast);
}

.size-btn:hover {
  border-color: var(--color-black);
}

.size-btn.active {
  background-color: var(--color-black);
  color: var(--color-white);
  border-color: var(--color-black);
}

.detail-desc {
  font-size: 14px;
  line-height: 1.8;
  color: var(--color-gray);
  font-weight: 300;
}

/* サイズガイドテーブル */
.size-guide-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 10px;
}

.size-guide-table th,
.size-guide-table td {
  border-bottom: 1px solid var(--color-border);
  padding: 12px 8px;
  font-size: 12px;
  text-align: center;
}

.size-guide-table th {
  font-weight: 400;
  color: var(--color-gray);
  text-transform: uppercase;
}

.size-guide-table td {
  font-weight: 300;
}

/* 関連商品 */
.related-section {
  border-top: 1px solid var(--color-border);
  padding-top: 80px;
}

/* ■ 8-4. ブランドストーリーページ用スタイル */
.story-hero {
  padding: 120px 0 60px;
  text-align: center;
}

.story-subtitle {
  font-size: 12px;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--color-gray);
  margin-bottom: 12px;
}

.story-grid {
  display: flex;
  flex-direction: column;
  gap: 140px;
  margin-top: 60px;
}

.story-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.story-row:nth-child(even) {
  direction: rtl; /* 交互配置 */
}

.story-row:nth-child(even) .story-text {
  direction: ltr; /* テキスト方向をリセット */
}

@media (max-width: 992px) {
  .story-row {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .story-row:nth-child(even) {
    direction: ltr;
  }
}

.story-image {
  background-color: var(--color-light-gray);
  aspect-ratio: 4/3;
  overflow: hidden;
}

.story-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.story-text {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.story-num {
  font-size: 12px;
  font-weight: 400;
  letter-spacing: 0.15em;
  color: var(--color-gray);
}

.story-title {
  font-size: 24px;
  font-weight: 300;
  letter-spacing: 0.05em;
}

.story-desc {
  font-size: 14px;
  line-height: 1.8;
  color: var(--color-gray);
  font-weight: 300;
}

/* ブランドムービー */
.brand-movie-section {
  margin-top: 140px;
}

.movie-placeholder {
  position: relative;
  background-color: var(--color-black);
  aspect-ratio: 16/9;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  cursor: pointer;
}

.movie-placeholder-img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.6;
  filter: grayscale(100%);
  transition: transform var(--transition-smooth), opacity var(--transition-smooth);
}

.movie-placeholder:hover .movie-placeholder-img {
  transform: scale(1.03);
  opacity: 0.7;
}

.play-btn-circle {
  position: relative;
  z-index: 2;
  width: 80px;
  height: 80px;
  border-radius: 50%;
  border: 1px solid var(--color-white);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform var(--transition-smooth), background-color var(--transition-fast);
}

.play-btn-circle::after {
  content: '';
  display: block;
  width: 0;
  height: 0;
  border-style: solid;
  border-width: 10px 0 10px 18px;
  border-color: transparent transparent transparent var(--color-white);
  margin-left: 6px;
}

.movie-placeholder:hover .play-btn-circle {
  transform: scale(1.1);
  background-color: rgba(255, 255, 255, 0.1);
}

/* ■ 8-5. ルックブックページ用スタイル */
/* マソンリー風ギャラリーグリッド */
.lookbook-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  grid-auto-flow: dense;
}

@media (max-width: 992px) {
  .lookbook-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.lookbook-item {
  position: relative;
  overflow: hidden;
  background-color: var(--color-light-gray);
  cursor: pointer;
}

/* マソンリー風に縦幅を不規則に変えるための設定 */
.lookbook-item.tall {
  grid-row: span 2;
}

.lookbook-item.wide {
  grid-column: span 2;
}

@media (max-width: 768px) {
  .lookbook-item.wide {
    grid-column: span 1;
  }
}

.lookbook-img-wrap {
  width: 100%;
  height: 100%;
  position: relative;
}

.lookbook-item.tall .lookbook-img-wrap {
  aspect-ratio: 3/5;
}

.lookbook-item:not(.tall) .lookbook-img-wrap {
  aspect-ratio: 3/4;
}

.lookbook-img-wrap img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-smooth);
}

.lookbook-item:hover .lookbook-img-wrap img {
  transform: scale(1.04);
}

.lookbook-hover-text {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  padding: 30px;
  background: linear-gradient(to top, rgba(0,0,0,0.4), transparent);
  color: var(--color-white);
  font-size: 11px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  opacity: 0;
  transition: opacity var(--transition-fast);
  z-index: 3;
}

.lookbook-item:hover .lookbook-hover-text {
  opacity: 1;
}

/* ■ 8-6. お問い合わせページ用スタイル */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
}

@media (max-width: 992px) {
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 60px;
  }
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 30px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.form-label {
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-gray);
}

.form-input,
.form-select,
.form-textarea {
  border: none;
  border-bottom: 1px solid var(--color-border);
  padding: 12px 0;
  font-family: inherit;
  font-size: 14px;
  font-weight: 300;
  background: transparent;
  color: var(--color-black);
  transition: border-color var(--transition-fast);
  outline: none;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  border-color: var(--color-black);
}

.form-textarea {
  min-height: 120px;
  resize: vertical;
}

.form-select {
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='8' height='5' viewBox='0 0 8 5'%3E%3Cpath fill='%23000' d='M0 0l4 4 4-4z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right center;
}

/* FAQアコーディオン (details / summary) */
.faq-section {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.faq-title {
  font-size: 20px;
  font-weight: 300;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 20px;
}

.faq-item {
  border-bottom: 1px solid var(--color-border);
}

.faq-summary {
  list-style: none;
  padding: 20px 0;
  font-size: 14px;
  font-weight: 400;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

/* summaryのデフォルト矢印を消す */
.faq-summary::-webkit-details-marker {
  display: none;
}

.faq-summary::after {
  content: '+';
  font-size: 18px;
  font-weight: 300;
  transition: transform var(--transition-fast);
}

details[open] .faq-summary::after {
  transform: rotate(45deg);
}

.faq-content {
  padding: 0 0 20px;
  font-size: 13px;
  line-height: 1.8;
  color: var(--color-gray);
  font-weight: 300;
}

/* SNSリンク */
.contact-sns {
  margin-top: 40px;
}

.sns-title {
  font-size: 11px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-gray);
  margin-bottom: 16px;
}

.sns-links {
  display: flex;
  gap: 24px;
}

.sns-link {
  font-size: 13px;
  font-weight: 300;
  color: var(--color-black);
  border-bottom: 1px solid transparent;
  padding-bottom: 2px;
}

.sns-link:hover {
  border-color: var(--color-black);
  opacity: 1;
}

/* カート通知トースト (ADD TO CARTクリック時などのUI演出) */
.toast-notification {
  position: fixed;
  bottom: 40px;
  right: 40px;
  background-color: var(--color-black);
  color: var(--color-white);
  padding: 16px 24px;
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  z-index: 1000;
  transform: translateY(100px);
  opacity: 0;
  transition: transform 0.4s cubic-bezier(0.25, 1, 0.5, 1), opacity 0.4s ease;
}

.toast-notification.show {
  transform: translateY(0);
  opacity: 1;
}