/* ===================================================
   刀剣商 ECサイト — メインスタイルシート
   黒×金 高級ギャラリー系デザイン
   =================================================== */

@import url('https://fonts.googleapis.com/css2?family=Cormorant+Garamond:ital,wght@0,300;0,400;0,600;1,300;1,400&family=Noto+Serif+JP:wght@300;400;500&family=Yuji+Boku&display=swap');

/* ── CSS変数 ── */
:root {
  --black:      #080808;
  --black-2:    #0f0f0f;
  --black-3:    #1a1a1a;
  --black-4:    #252525;
  --gold:       #c8a96e;
  --gold-light: #dfc08a;
  --gold-dim:   #9a7d4e;
  --cream:      #e8e0d0;
  --cream-dim:  #b0a898;
  --white:      #f5f0e8;
  --font-en:    'Cormorant Garamond', serif;
  --font-jp:    'Noto Serif JP', serif;
  --font-logo:  'Yuji Boku', serif;
  --transition: 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

/* ── リセット ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; font-size: 16px; }

body {
  background: var(--black);
  color: var(--cream);
  font-family: var(--font-jp);
  font-weight: 300;
  line-height: 1.8;
  overflow-x: hidden;
}

img { display: block; max-width: 100%; }
a  { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }

/* ── スクロールバー ── */
::-webkit-scrollbar { width: 5px; }
::-webkit-scrollbar-track { background: var(--black); }
::-webkit-scrollbar-thumb { background: var(--gold-dim); border-radius: 3px; }

/* ============================================================
   ヘッダー
   ============================================================ */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 3rem;
  height: 72px;
  background: rgba(8, 8, 8, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(200, 169, 110, 0.15);
  transition: var(--transition);
}

.site-header.scrolled {
  height: 60px;
  background: rgba(8, 8, 8, 0.98);
}

/* ロゴ */
.header-logo a {
  font-family: var(--font-logo);
  font-size: 1.5rem;
  color: var(--gold);
  letter-spacing: 0.08em;
  transition: var(--transition);
}
.header-logo a:hover { color: var(--gold-light); }
.header-logo .logo-sub {
  display: block;
  font-family: var(--font-en);
  font-size: 0.65rem;
  letter-spacing: 0.25em;
  color: var(--cream-dim);
  text-transform: uppercase;
  margin-top: -2px;
}

/* PC ナビ */
.header-nav { display: flex; align-items: center; gap: 0.5rem; }

.header-nav .nav-item {
  position: relative;
  padding: 0.5rem 1rem;
  font-family: var(--font-en);
  font-size: 0.85rem;
  letter-spacing: 0.15em;
  color: var(--cream-dim);
  text-transform: uppercase;
  transition: var(--transition);
}
.header-nav .nav-item::after {
  content: '';
  position: absolute;
  bottom: 0; left: 50%; right: 50%;
  height: 1px;
  background: var(--gold);
  transition: var(--transition);
}
.header-nav .nav-item:hover { color: var(--gold); }
.header-nav .nav-item:hover::after { left: 0.75rem; right: 0.75rem; }

/* ドロップダウン */
.nav-dropdown { position: relative; }
.dropdown-menu {
  display: none;
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  min-width: 180px;
  background: var(--black-3);
  border: 1px solid rgba(200, 169, 110, 0.2);
  padding: 0.5rem 0;
  z-index: 999;
}
.nav-dropdown:hover .dropdown-menu { display: block; }
.dropdown-menu a {
  display: block;
  padding: 0.6rem 1.25rem;
  font-family: var(--font-jp);
  font-size: 0.8rem;
  color: var(--cream-dim);
  letter-spacing: 0.05em;
  transition: var(--transition);
}
.dropdown-menu a:hover { color: var(--gold); background: rgba(200, 169, 110, 0.06); }

/* カートアイコン */
.header-icons { display: flex; align-items: center; gap: 1.5rem; }
.cart-icon-wrap {
  position: relative;
  color: var(--cream-dim);
  transition: var(--transition);
}
.cart-icon-wrap:hover { color: var(--gold); }
.cart-icon-wrap svg { width: 22px; height: 22px; }
.cart-badge {
  position: absolute;
  top: -7px; right: -9px;
  width: 17px; height: 17px;
  background: var(--gold);
  color: var(--black);
  font-size: 0.6rem;
  font-weight: 700;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  display: none;
}
.cart-badge.visible { display: flex; }

/* ハンバーガー（スマホ） */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 4px;
  cursor: pointer;
}
.hamburger span {
  display: block;
  width: 24px; height: 1.5px;
  background: var(--cream);
  transition: var(--transition);
}

/* ============================================================
   モバイルメニュー
   ============================================================ */
.mobile-menu {
  display: none;
  position: fixed;
  top: 0; right: -100%;
  width: min(320px, 85vw);
  height: 100vh;
  background: var(--black-2);
  border-left: 1px solid rgba(200, 169, 110, 0.15);
  padding: 5rem 2rem 2rem;
  z-index: 999;
  overflow-y: auto;
  transition: right var(--transition);
}
.mobile-menu.open { right: 0; }
.mobile-menu-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.6);
  z-index: 998;
}
.mobile-menu-overlay.open { display: block; }

.mobile-menu a {
  display: block;
  padding: 0.85rem 0;
  font-size: 0.95rem;
  color: var(--cream-dim);
  border-bottom: 1px solid rgba(200, 169, 110, 0.1);
  transition: var(--transition);
}
.mobile-menu a:hover { color: var(--gold); padding-left: 0.5rem; }
.mobile-menu .menu-section-label {
  font-family: var(--font-en);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  color: var(--gold-dim);
  text-transform: uppercase;
  margin: 1.5rem 0 0.5rem;
}

/* ============================================================
   ヒーローセクション
   ============================================================ */
.hero {
  position: relative;
  height: 100vh;
  min-height: 600px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: var(--black);
}

.hero-bg {
  position: absolute;
  inset: 0;
  background-image: url('../images/products/hero-bg.jpg');
  background-size: cover;
  background-position: center center;
  opacity: 0.65;
}

.hero-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom,
    rgba(8,8,8,0.55) 0%,
    rgba(8,8,8,0.35) 50%,
    rgba(8,8,8,0.7) 100%);
}

/* 刀のSVGアニメーション */
.hero-sword { display: none; }

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  padding: 0 2rem;
}

.hero-eyebrow {
  font-family: var(--font-en);
  font-size: 0.7rem;
  letter-spacing: 0.4em;
  color: var(--gold);
  text-transform: uppercase;
  margin-bottom: 2rem;
  opacity: 0;
  animation: fadeUp 1s 0.3s forwards;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1.2rem;
}
.hero-eyebrow::before,
.hero-eyebrow::after {
  content: '';
  display: inline-block;
  width: 60px;
  height: 1px;
  background: var(--gold);
  opacity: 0.6;
}

/* gifukudo style: "The Art of the" (upright) + "Japanese Sword" (italic gold) */
.hero-title {
  font-family: var(--font-en);
  font-size: clamp(2.8rem, 7vw, 6.5rem);
  font-weight: 300;
  color: var(--white);
  line-height: 1.15;
  letter-spacing: 0.01em;
  margin-bottom: 1.2rem;
  opacity: 0;
  animation: fadeUp 1s 0.5s forwards;
}
.hero-title-italic {
  display: block;
  font-style: italic;
  color: var(--gold);
}

/* 義 福 堂 */
.hero-kanji {
  font-family: var(--font-logo);
  font-size: clamp(1.8rem, 4vw, 3rem);
  color: var(--gold);
  letter-spacing: 0.6em;
  margin-bottom: 2rem;
  opacity: 0;
  animation: fadeUp 1s 0.7s forwards;
}

.hero-title-en { display: none; }

.hero-divider {
  width: 80px;
  height: 1px;
  background: linear-gradient(to right, transparent, var(--gold), transparent);
  margin: 0 auto 2rem;
  opacity: 0;
  animation: fadeUp 1s 0.9s forwards;
}

.hero-desc {
  font-size: 0.9rem;
  color: var(--cream-dim);
  letter-spacing: 0.1em;
  margin-bottom: 3rem;
  opacity: 0;
  animation: fadeUp 1s 1.1s forwards;
}

.hero-cta {
  display: inline-flex;
  gap: 1rem;
  flex-wrap: wrap;
  justify-content: center;
  opacity: 0;
  animation: fadeUp 1s 1.3s forwards;
}

.btn-primary {
  display: inline-block;
  padding: 0.9rem 2.5rem;
  background: var(--gold);
  color: var(--black);
  font-family: var(--font-en);
  font-size: 0.8rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  transition: var(--transition);
}
.btn-primary:hover {
  background: var(--gold-light);
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(200, 169, 110, 0.3);
}

.btn-outline {
  display: inline-block;
  padding: 0.9rem 2.5rem;
  border: 1px solid var(--gold);
  color: var(--gold);
  font-family: var(--font-en);
  font-size: 0.8rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  transition: var(--transition);
}
.btn-outline:hover {
  background: rgba(200, 169, 110, 0.08);
  transform: translateY(-2px);
}

.hero-scroll {
  position: absolute;
  bottom: 2.5rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  color: var(--cream-dim);
  font-family: var(--font-en);
  font-size: 0.65rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  opacity: 0;
  animation: fadeIn 1s 2s forwards;
}
.hero-scroll::after {
  content: '';
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, var(--gold-dim), transparent);
  animation: scrollLine 1.5s ease-in-out infinite;
}

/* ============================================================
   セクション共通
   ============================================================ */
section { padding: 6rem 0; }

.section-header {
  text-align: center;
  margin-bottom: 4rem;
}
.section-eyebrow {
  font-family: var(--font-en);
  font-size: 0.7rem;
  letter-spacing: 0.35em;
  color: var(--gold);
  text-transform: uppercase;
  margin-bottom: 0.75rem;
}
.section-title {
  font-family: var(--font-en);
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 300;
  color: var(--white);
  letter-spacing: 0.08em;
  margin-bottom: 0.5rem;
}
.section-title-jp {
  font-family: var(--font-logo);
  font-size: 1.1rem;
  color: var(--gold-dim);
  letter-spacing: 0.2em;
}
.section-divider {
  width: 60px;
  height: 1px;
  background: linear-gradient(to right, transparent, var(--gold), transparent);
  margin: 1.5rem auto 0;
}

.container { max-width: 1200px; margin: 0 auto; padding: 0 2rem; }
.container-wide { max-width: 1400px; margin: 0 auto; padding: 0 2rem; }

/* ============================================================
   カテゴリーグリッド
   ============================================================ */
.category-section { background: var(--black); }

.category-grid {
  display: grid;
  gap: 1px;
  width: 100%;
  background: rgba(200,169,110,0.06);
}
.category-grid-4 { grid-template-columns: repeat(4, 1fr); }
.category-grid-5 { grid-template-columns: repeat(5, 1fr); }
@media (max-width: 900px) {
  .category-grid-4 { grid-template-columns: repeat(2, 1fr); }
  .category-grid-5 { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 600px) {
  .category-grid-4, .category-grid-5 { grid-template-columns: repeat(2, 1fr); }
}

.category-card {
  display: flex;
  flex-direction: column;
  background: var(--black);
  cursor: pointer;
  overflow: hidden;
  transition: background 0.3s;
  text-decoration: none;
}
.category-card:hover { background: #0d0d0d; }

.category-card-bg {
  width: 100%;
  aspect-ratio: 3/4;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  background: var(--black);
  overflow: hidden;
}

.category-card-bg img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  opacity: 0.92;
  transition: opacity 0.4s, transform 0.5s;
}
.category-card:hover .category-card-bg img { opacity: 1; transform: scale(1.03); }

.category-card-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
  color: rgba(200, 169, 110, 0.2);
}

.category-card-overlay {
  padding: 1rem 1.25rem 1.5rem;
  background: var(--black);
}

.category-card-name-jp {
  font-family: var(--font-logo);
  font-size: 0.85rem;
  color: var(--cream-dim);
  letter-spacing: 0.1em;
  margin-top: 0.3rem;
}
.category-card-name-en {
  font-family: var(--font-en);
  font-size: 0.82rem;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--white);
}

/* ============================================================
   商品グリッド
   ============================================================ */
.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 2px;
}

.product-card {
  position: relative;
  background: var(--black-2);
  overflow: hidden;
  cursor: pointer;
  transition: var(--transition);
}
.product-card:hover { transform: translateY(-4px); }

.product-card-image {
  position: relative;
  aspect-ratio: 1/1;
  overflow: hidden;
  background: var(--black);
}

.product-card-image img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  transition: transform 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}
.product-card:hover .product-card-image img { transform: scale(1.05); }

.product-card-placeholder {
  width: 100%;
  height: 100%;
  background: linear-gradient(160deg, var(--black-3), var(--black-4));
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-logo);
  font-size: 1rem;
  color: rgba(200, 169, 110, 0.2);
  letter-spacing: 0.2em;
}

.sold-badge {
  position: absolute;
  top: 1rem; right: 1rem;
  background: rgba(8, 8, 8, 0.85);
  border: 1px solid rgba(200, 169, 110, 0.4);
  color: var(--gold-dim);
  font-family: var(--font-en);
  font-size: 0.65rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  padding: 0.3rem 0.75rem;
}

.product-card-info {
  padding: 1.25rem;
  border-top: 1px solid rgba(200, 169, 110, 0.08);
}

.product-card-category {
  font-family: var(--font-en);
  font-size: 0.65rem;
  letter-spacing: 0.25em;
  color: var(--gold);
  text-transform: uppercase;
  margin-bottom: 0.4rem;
}

.product-card-name {
  font-family: var(--font-jp);
  font-size: 0.95rem;
  color: var(--white);
  margin-bottom: 0.2rem;
  letter-spacing: 0.05em;
}

.product-card-period {
  font-size: 0.75rem;
  color: var(--cream-dim);
  margin-bottom: 0.75rem;
}

.product-card-price {
  font-family: var(--font-en);
  font-size: 1rem;
  color: var(--gold);
  letter-spacing: 0.05em;
}
.product-card-price .price-usd {
  font-size: 0.75rem;
  color: var(--cream-dim);
  margin-left: 0.5rem;
}

/* ============================================================
   フィルターバー
   ============================================================ */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 3rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid rgba(200, 169, 110, 0.1);
}

.filter-btn {
  padding: 0.5rem 1.25rem;
  font-family: var(--font-en);
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--cream-dim);
  border: 1px solid rgba(200, 169, 110, 0.2);
  background: transparent;
  transition: var(--transition);
}
.filter-btn:hover, .filter-btn.active {
  color: var(--black);
  background: var(--gold);
  border-color: var(--gold);
}

/* ============================================================
   About セクション
   ============================================================ */
.about-section {
  background: var(--black);
  text-align: center;
}

.about-inner {
  max-width: 750px;
  margin: 0 auto;
  padding: 0 2rem;
}

.about-quote {
  font-family: var(--font-en);
  font-size: clamp(1.2rem, 3vw, 2rem);
  font-style: italic;
  font-weight: 300;
  color: var(--white);
  line-height: 1.6;
  margin-bottom: 2rem;
}

.about-text {
  font-size: 0.875rem;
  color: var(--cream-dim);
  line-height: 2;
  margin-bottom: 2rem;
}

/* ============================================================
   商品詳細ページ
   ============================================================ */
.product-detail {
  padding-top: 120px;
  min-height: 100vh;
}

.product-detail-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: start;
}

/* 商品詳細ページ */
.pd-top {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  max-width: 1200px;
  margin: 2rem auto 0;
  padding: 0 2rem;
  align-items: start;
}
.pd-images { min-width: 0; }
.pd-main-img { background: var(--black); line-height: 0; margin-bottom: 0.5rem; }
.pd-main-img img { width: 100%; height: auto; display: block; }
.pd-thumbs { display: flex; gap: 0.4rem; flex-wrap: wrap; }
.pd-thumb { width: 120px; height: 90px; overflow: hidden; cursor: pointer; border: 1px solid rgba(200,169,110,0.2); opacity: 0.6; transition: opacity 0.2s, border-color 0.2s; }
.pd-thumb.active, .pd-thumb:hover { opacity: 1; border-color: var(--gold); }
.pd-thumb img { width: 100%; height: 100%; object-fit: contain; background: var(--black); display: block; }
.pd-info { min-width: 0; }
.pd-detail-images {
  max-width: 900px;
  margin: 4rem auto;
  padding: 0 2rem;
}
.pd-detail-divider {
  text-align: center;
  margin-bottom: 2rem;
  position: relative;
}
.pd-detail-divider::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 0; right: 0;
  height: 1px;
  background: rgba(200,169,110,0.2);
}
.pd-detail-divider span {
  position: relative;
  background: var(--black);
  padding: 0 1rem;
  font-family: var(--font-en);
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  color: var(--gold-dim);
}

/* スクロール式商品ページ */
.product-scroll-layout {
  display: grid;
  grid-template-columns: 1fr 360px;
  align-items: start;
  gap: 0;
  max-width: 1400px;
  margin: 0 auto;
  padding: 2rem 2rem 6rem;
  min-width: 0;
  width: 100%;
  box-sizing: border-box;
}
.product-scroll-info {
  position: sticky;
  top: 80px;
  padding: 2rem 0 2rem 3rem;
}
.product-scroll-images {
  padding: 2rem 3rem 2rem 0;
  border-right: 1px solid rgba(200,169,110,0.08);
  min-width: 0;
  width: 100%;
}
.product-scroll-image-item {
  margin-bottom: 2px;
  background: var(--black);
  line-height: 0;
  width: 100%;
  display: block;
}
.product-scroll-image-item img {
  width: 100%;
  height: auto;
  display: block;
  min-width: 0;
}

/* 画像ギャラリー */
.product-gallery-main {
  background: var(--black);
  overflow: hidden;
  margin-bottom: 0.5rem;
}
.product-gallery-main img {
  width: 100%;
  height: auto;
  max-height: 600px;
  object-fit: contain;
  display: block;
  margin: 0 auto;
}

.product-gallery-thumbs {
  display: flex;
  gap: 0.5rem;
}
.product-thumb {
  width: 80px;
  aspect-ratio: 2/3;
  background: var(--black-3);
  cursor: pointer;
  overflow: hidden;
  border: 1px solid transparent;
  transition: var(--transition);
}
.product-thumb.active { border-color: var(--gold); }
.product-thumb img { width: 100%; height: 100%; object-fit: cover; }

/* 商品情報 */
.product-info-category {
  font-family: var(--font-en);
  font-size: 0.7rem;
  letter-spacing: 0.3em;
  color: var(--gold);
  text-transform: uppercase;
  margin-bottom: 0.75rem;
}
.product-info-name {
  font-family: var(--font-jp);
  font-size: clamp(1.5rem, 3vw, 2.2rem);
  color: var(--white);
  letter-spacing: 0.1em;
  margin-bottom: 0.25rem;
}
.product-info-name-en {
  font-family: var(--font-en);
  font-size: 1rem;
  font-style: italic;
  color: var(--cream-dim);
  margin-bottom: 0.5rem;
}
.product-info-period {
  font-size: 0.8rem;
  color: var(--cream-dim);
  margin-bottom: 2rem;
}

.product-info-divider {
  height: 1px;
  background: linear-gradient(to right, var(--gold-dim), transparent);
  margin: 1.5rem 0;
}

.product-info-price {
  font-family: var(--font-en);
  font-size: 1.8rem;
  color: var(--gold);
  margin-bottom: 0.25rem;
}
.product-info-price-usd {
  font-size: 0.9rem;
  color: var(--cream-dim);
  margin-bottom: 2rem;
}

/* スペックテーブル */
.spec-table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 2rem;
}
.spec-table tr {
  border-bottom: 1px solid rgba(200, 169, 110, 0.08);
}
.spec-table td {
  padding: 0.6rem 0;
  font-size: 0.82rem;
}
.spec-table td:first-child {
  color: var(--gold-dim);
  width: 100px;
  letter-spacing: 0.08em;
}
.spec-table td:last-child { color: var(--cream); }

.product-description {
  font-size: 0.875rem;
  color: var(--cream-dim);
  line-height: 2;
  margin-bottom: 2rem;
}

.btn-add-cart {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  width: 100%;
  padding: 1.1rem;
  background: var(--gold);
  color: var(--black);
  font-family: var(--font-jp);
  font-size: 0.9rem;
  letter-spacing: 0.15em;
  transition: var(--transition);
  margin-bottom: 1rem;
}
.btn-add-cart:hover {
  background: var(--gold-light);
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(200, 169, 110, 0.3);
}
.btn-add-cart:disabled {
  background: var(--black-4);
  color: var(--cream-dim);
  border: 1px solid rgba(200, 169, 110, 0.2);
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

.btn-inquiry {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  width: 100%;
  padding: 1.1rem;
  border: 1px solid rgba(200, 169, 110, 0.4);
  color: var(--gold);
  font-family: var(--font-jp);
  font-size: 0.9rem;
  letter-spacing: 0.15em;
  background: transparent;
  transition: var(--transition);
}
.btn-inquiry:hover { background: rgba(200, 169, 110, 0.06); }

/* ============================================================
   カートページ
   ============================================================ */
.cart-page {
  padding-top: 120px;
  min-height: 80vh;
}

.cart-layout {
  display: grid;
  grid-template-columns: 1fr 360px;
  gap: 4rem;
  align-items: start;
}

.cart-item {
  display: grid;
  grid-template-columns: 100px 1fr auto;
  gap: 1.5rem;
  align-items: center;
  padding: 1.5rem 0;
  border-bottom: 1px solid rgba(200, 169, 110, 0.1);
}

.cart-item-image {
  aspect-ratio: 2/3;
  background: var(--black-2);
  overflow: hidden;
}
.cart-item-image img { width: 100%; height: 100%; object-fit: cover; }

.cart-item-name {
  font-size: 0.95rem;
  color: var(--white);
  margin-bottom: 0.25rem;
}
.cart-item-category {
  font-family: var(--font-en);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  color: var(--gold);
  text-transform: uppercase;
  margin-bottom: 0.5rem;
}
.cart-item-price {
  font-family: var(--font-en);
  font-size: 1rem;
  color: var(--gold);
}

.cart-item-remove {
  color: var(--cream-dim);
  font-size: 1.2rem;
  line-height: 1;
  transition: var(--transition);
  padding: 0.25rem;
}
.cart-item-remove:hover { color: #e05050; }

.cart-empty {
  text-align: center;
  padding: 4rem 0;
  color: var(--cream-dim);
}
.cart-empty p { margin-bottom: 2rem; }

/* 注文サマリー */
.order-summary {
  background: var(--black-2);
  padding: 2rem;
  border: 1px solid rgba(200, 169, 110, 0.1);
  position: sticky;
  top: 100px;
}
.order-summary h3 {
  font-family: var(--font-en);
  font-size: 0.8rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 1.5rem;
}
.summary-row {
  display: flex;
  justify-content: space-between;
  padding: 0.6rem 0;
  font-size: 0.85rem;
  border-bottom: 1px solid rgba(200, 169, 110, 0.06);
}
.summary-row.total {
  font-size: 1rem;
  color: var(--gold);
  border-bottom: none;
  margin-top: 0.5rem;
  padding-top: 1rem;
  border-top: 1px solid rgba(200, 169, 110, 0.2);
  font-family: var(--font-en);
}

#paypal-button-container { margin-top: 1.5rem; }

.cart-note {
  font-size: 0.75rem;
  color: var(--cream-dim);
  margin-top: 1rem;
  line-height: 1.7;
}

/* ============================================================
   フッター
   ============================================================ */
.site-footer {
  background: var(--black-2);
  border-top: 1px solid rgba(200, 169, 110, 0.1);
  padding: 4rem 0 2rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-brand-name {
  font-family: var(--font-logo);
  font-size: 1.4rem;
  color: var(--gold);
  margin-bottom: 0.25rem;
}
.footer-brand-en {
  font-family: var(--font-en);
  font-size: 0.65rem;
  letter-spacing: 0.25em;
  color: var(--cream-dim);
  text-transform: uppercase;
  margin-bottom: 1rem;
}
.footer-brand-desc {
  font-size: 0.78rem;
  color: var(--cream-dim);
  line-height: 1.9;
}

.footer-col-title {
  font-family: var(--font-en);
  font-size: 0.7rem;
  letter-spacing: 0.25em;
  color: var(--gold);
  text-transform: uppercase;
  margin-bottom: 1rem;
}
.footer-col a {
  display: block;
  font-size: 0.8rem;
  color: var(--cream-dim);
  padding: 0.3rem 0;
  transition: var(--transition);
}
.footer-col a:hover { color: var(--gold); }

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 2rem;
  border-top: 1px solid rgba(200, 169, 110, 0.08);
  flex-wrap: wrap;
  gap: 1rem;
}
.footer-copy {
  font-size: 0.72rem;
  color: var(--cream-dim);
  letter-spacing: 0.05em;
}
.footer-links {
  display: flex;
  gap: 2rem;
}
.footer-links a {
  font-size: 0.72rem;
  color: var(--cream-dim);
  transition: var(--transition);
}
.footer-links a:hover { color: var(--gold); }

/* ============================================================
   ページヘッダー（一覧・詳細等）
   ============================================================ */
.page-header {
  padding: 8rem 0 4rem;
  text-align: center;
  background: linear-gradient(to bottom, rgba(200, 169, 110, 0.03), transparent);
  border-bottom: 1px solid rgba(200, 169, 110, 0.08);
}
.page-header-eyebrow {
  font-family: var(--font-en);
  font-size: 0.7rem;
  letter-spacing: 0.35em;
  color: var(--gold);
  text-transform: uppercase;
  margin-bottom: 0.75rem;
}
.page-header-title {
  font-family: var(--font-en);
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 300;
  color: var(--white);
  letter-spacing: 0.1em;
}
.page-header-title-jp {
  font-family: var(--font-logo);
  font-size: 1.1rem;
  color: var(--gold-dim);
  margin-top: 0.5rem;
  letter-spacing: 0.2em;
}

/* ============================================================
   ユーティリティ / アニメーション
   ============================================================ */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}
@keyframes scrollLine {
  0%, 100% { opacity: 1; transform: scaleY(1); transform-origin: top; }
  50%       { opacity: 0.4; transform: scaleY(0.5); }
}
@keyframes shimmer {
  0%   { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}

.fade-up {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}

.gold-shimmer {
  background: linear-gradient(90deg, var(--gold-dim) 0%, var(--gold-light) 50%, var(--gold-dim) 100%);
  background-size: 200% auto;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: shimmer 3s linear infinite;
}

/* ============================================================
   レスポンシブ
   ============================================================ */
@media (max-width: 1024px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .product-detail-grid { grid-template-columns: 1fr; gap: 3rem; }
  .cart-layout { grid-template-columns: 1fr; }
  .order-summary { position: static; }
}

@media (max-width: 768px) {
  .pd-top { grid-template-columns: 1fr; gap: 2rem; }
  .pd-detail-images { padding: 0 1rem; }
  .product-scroll-layout {
    grid-template-columns: 1fr;
    padding: 1.5rem;
  }
  .product-scroll-info {
    position: static;
    padding: 0 0 2rem 0;
  }
  .product-scroll-images {
    padding: 0 0 2rem 0;
    border-right: none;
    border-bottom: 1px solid rgba(200,169,110,0.08);
  }
  .site-header { padding: 0 1.5rem; }
  .header-nav { display: none; }
  .hamburger { display: flex; }
  .mobile-menu { display: block; }

  .hero-title { font-size: clamp(2.5rem, 10vw, 4rem); }
  section { padding: 4rem 0; }
  .container, .container-wide { padding: 0 1.25rem; }

  .products-grid { grid-template-columns: repeat(2, 1fr); }
  .category-grid { grid-template-columns: repeat(2, 1fr); }

  .footer-grid { grid-template-columns: 1fr; gap: 2rem; }
  .footer-bottom { flex-direction: column; text-align: center; }

  .cart-item { grid-template-columns: 80px 1fr auto; gap: 1rem; }
}

@media (max-width: 480px) {
  .products-grid { grid-template-columns: 1fr; }
  .hero-cta { flex-direction: column; align-items: center; }
  .btn-primary, .btn-outline { width: 100%; text-align: center; }
}

/* ============================================================
   通知トースト
   ============================================================ */
.toast {
  position: fixed;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  background: var(--black-3);
  border: 1px solid rgba(200, 169, 110, 0.3);
  color: var(--cream);
  font-size: 0.85rem;
  padding: 0.9rem 2rem;
  z-index: 9999;
  transition: transform 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  white-space: nowrap;
}
.toast.show { transform: translateX(-50%) translateY(0); }