@charset "utf-8";
/* CSS Document */

/* ============================================================
   CSS VARIABLES & RESET
   ============================================================ */
:root {
  --color-bg: #f5f3ef;
  --color-text: #1a1814;
  --color-text-light: #7a7570;
  --color-accent: #b8a99a;
  --color-border: #ddd9d3;
  --color-white: #ffffff;

  --font-display: 'Cormorant Garamond', serif;
  --font-title: 'Knewave', sans-serif;
  --font-body: 'Noto Sans JP', sans-serif;

  --slide-height-pc: 860px;
  --slide-img-ratio: calc(13 / 10); /* 縦：横 = 13:10 */
  --slide-img-width: calc(var(--slide-height-pc) / var(--slide-img-ratio));

  --gap-slide: 0px;
  --transition-base: 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  background-color: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  font-weight: 300;
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}

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

ul, ol { list-style: none; }
a { color: inherit; text-decoration: none; }

/* ============================================================
   1. TOP SLIDE
   ============================================================ */
.top-slide {
  position: relative;
  width: 100%;
  height: var(--slide-height-pc);
  overflow: hidden;
  background-color: #ede9e3;
}

/* ---- ロゴ ---- */
.top-slide__logo {
  position: absolute;
  inset: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: center;
  pointer-events: none;
}

/* ロゴ本体は動かさず、clip-pathで下から幕が上がるように表示 */
.top-slide__logo-inner {
  text-align: center;

  /* 初期：非表示（下端から上へ表示領域を広げる） */
  clip-path: inset(100% 0 0 0);
  transition: clip-path 0.65s cubic-bezier(0.22, 1, 0.36, 1);
}

.top-slide__logo.is-visible .top-slide__logo-inner {
  clip-path: inset(0% 0 0 0);
}

.top-slide__logo-title {
  display: block;
  font-family: var(--font-title);
  font-size: clamp(3rem, 5.5vw, 5.5rem);
  font-weight: 400;
  letter-spacing: 0.05em;
  color: var(--color-white);
  line-height: 1;
}

.top-slide__logo-sub {
  display: block;
  font-family: var(--font-title);
  font-size: clamp(0.6rem, 1vw, 0.8rem);
  font-style: italic;
  letter-spacing: 0.3em;
  color: rgba(255,255,255,0.88);
  margin-top: 0.6em;
  text-transform: uppercase;
}

/* ---- スライドトラック ---- */
.top-slide__track-wrapper {
  position: absolute;
  inset: 0;
  overflow: hidden;
}

.top-slide__track {
  display: flex;
  align-items: stretch;
  height: 100%;
  gap: var(--gap-slide);
  will-change: transform;
  backface-visibility: hidden;
  transform: translateZ(0);
  /* 位置確定前にクローンが見えないよう初期非表示 */
  visibility: hidden;
}

.top-slide__track.is-ready {
  visibility: visible;
}

/* ---- 各スライドアイテム ---- */
.top-slide__item {
  flex: 0 0 var(--slide-img-width);
  height: 100%;
  overflow: hidden;
  /* 初期：非表示（左から幕を引くように表示） */
  clip-path: inset(0 0 0 100%);
  transition: clip-path 1.1s cubic-bezier(0.22, 1, 0.36, 1);
}

.top-slide__item.is-visible {
  clip-path: inset(0 0 0 0%);
}

.top-slide__item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
  display: block;
}

/* ---- SP レイアウト ---- */
@media (max-width: 767px) {
  .top-slide {
    height: 100svh;
    max-height: 780px;
  }

  .top-slide__item {
    flex: 0 0 100%;
  }
}

/* ============================================================
   2. INTRODUCTION
   ============================================================ */
.introduction {
  padding: clamp(64px, 8vw, 120px) clamp(24px, 6vw, 80px);
  max-width: 900px;
  margin: 0 auto;
  text-align: center;
}

.introduction__title {
  font-family: var(--font-title);
  font-size: clamp(3rem, 5.5vw, 5.5rem);
  font-weight: 400;
  letter-spacing: 0.05em;
  margin-bottom: 0.3em;
  color: var(--color-text);
  line-height: 1;
}

.introduction__sub {
  display: block;
  font-family: var(--font-title);
  font-size: clamp(0.65rem, 1.2vw, 0.85rem);
  font-style: italic;
  letter-spacing: 0.3em;
  color: var(--color-text-light);
  margin-bottom: clamp(28px, 4vw, 48px);
}

.introduction__lead {
  font-size: clamp(0.95rem, 1.5vw, 1.1rem);
  line-height: 2;
  color: var(--color-text);
  letter-spacing: 0.05em;
  margin-bottom: 1.5em;
}

.introduction__notice {
  display: inline-block;
  font-size: 0.82rem;
  letter-spacing: 0.1em;
  color: var(--color-text-light);
  border-bottom: 1px solid var(--color-border);
  padding-bottom: 0.25em;
  margin-bottom: clamp(32px, 5vw, 56px);
}

/* ---- リンクバナー ---- */
.introduction__links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
  margin-top: clamp(24px, 4vw, 40px);
}

.introduction__link-item {
  flex: 0 0 auto;
}

.introduction__link-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 24px;
  border: 1px solid var(--color-border);
  font-family: var(--font-body);
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  color: var(--color-text);
  background: var(--color-white);
  transition: background var(--transition-base), color var(--transition-base), border-color var(--transition-base);
}

.introduction__link-btn::after {
  content: '→';
  font-size: 0.85em;
  transition: transform var(--transition-base);
}

.introduction__link-btn:hover {
  background: var(--color-text);
  color: var(--color-white);
  border-color: var(--color-text);
}

.introduction__link-btn:hover::after {
  transform: translateX(4px);
}

/* ============================================================
   3. INDEX
   ============================================================ */
.index-area {
  padding: clamp(40px, 6vw, 80px) clamp(24px, 6vw, 80px);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  background: var(--color-white);
}

.index-area__heading {
  font-family: var(--font-title);
  font-size: 0.78rem;
  letter-spacing: 0.4em;
  color: var(--color-text-light);
  text-align: center;
  margin-bottom: clamp(20px, 3vw, 32px);
}

.index-list {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 10px;
}

/* ============================================================
   INDEX アイテム アニメーション
   ============================================================ */
.index-list__item {
  flex: 0 0 auto;
}

/* PC：初期状態（左からスライドイン） */
.index-list__item.idx-hidden {
  opacity: 0;
  transform: translateX(-18px) scaleY(0.92);
  transform-origin: bottom center;
}

.index-list__item.idx-visible {
  opacity: 1;
  transform: translateX(0) scaleY(1);
  transition: opacity 0.45s cubic-bezier(0.22, 1, 0.36, 1),
              transform 0.45s cubic-bezier(0.22, 1, 0.36, 1);
}

/* SP：初期状態（下から跳ね上がる） */
@media (max-width: 767px) {
  .index-list__item.idx-hidden {
    opacity: 0;
    transform: translateY(22px) scaleY(0.88);
    transform-origin: bottom center;
  }

  .index-list__item.idx-visible {
    opacity: 1;
    transform: translateY(0) scaleY(1);
    transition: opacity 0.38s cubic-bezier(0.34, 1.56, 0.64, 1),
                transform 0.38s cubic-bezier(0.34, 1.56, 0.64, 1);
  }
}

.index-list__link {
  display: block;
  position: relative;
  overflow: hidden;
}

.index-list__link::after {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0);
  transition: background 0.3s ease;
}

.index-list__link:hover::after {
  background: rgba(0,0,0,0.12);
}

.index-list__img {
  width: 85px;
  height: 110px;
  object-fit: cover;
  object-position: top center;
  display: block;
  /* CLS対策 */
  aspect-ratio: 85 / 110;
}

.index-list__label {
  display: block;
  text-align: center;
  font-size: 0.65rem;
  letter-spacing: 0.1em;
  color: var(--color-text-light);
  margin-top: 6px;
}

/* SP */
@media (max-width: 767px) {
  .index-list {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 8px;
  }

  .index-list__link {
    width: 100%;
  }

  .index-list__img {
    width: 100%;
    height: auto;
    aspect-ratio: 85 / 110;
  }
}

/* ============================================================
   4. STYLING SECTION
   ============================================================ */
.styling-area {
  padding: clamp(60px, 8vw, 100px) clamp(24px, 6vw, 80px);
  border-bottom: 1px solid var(--color-border);
  max-width: 1000px;
  margin-left: auto;
  margin-right: auto;
}

.styling-area + .styling-area {
  padding-top: clamp(48px, 6vw, 80px);
}

/* ---- セクション番号 ---- */
.styling-area__number {
  font-family: var(--font-title);
  font-size: 0.72rem;
  letter-spacing: 0.35em;
  color: var(--color-text-light);
  margin-bottom: clamp(32px, 5vw, 56px);
}

/* ============================================================
   4-1. MODEL AREA — flexbox で左右列を並べ、右列内でサブ画像を均等分割
   ============================================================ */
.model-area {
  display: flex;
  margin-bottom: clamp(32px, 5vw, 56px);
  align-items: stretch;
}

/* 左列：メイン画像 */
.model-area__col--main {
  width: calc(66.666% - 5px);
  flex-shrink: 0;
  margin-right: 10px;
}

/* 右列：サブ画像2枚を縦並び */
.model-area__col--sub {
  width: calc(33.333% - 5px);
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.model-area__img {
  overflow: hidden;
  background: var(--color-border);
}

.model-area__img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
  display: block;
  transition: transform 0.7s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.model-area__img:hover img {
  transform: scale(1.03);
}

/* メイン画像：aspect-ratio で高さを確定 */
.model-area__img--main {
  aspect-ratio: 10 / 13;
  height: 100%;
}

/* サブ画像：右列の高さを2等分して埋める */
.model-area__img--sub1,
.model-area__img--sub2 {
  flex: 1;
  min-height: 0;
}

/* SP */
@media (max-width: 767px) {
  .model-area {
    flex-direction: column;
    gap: 10px;
  }

  .model-area__col--main {
    flex: none;
    width: 100%;
    margin-right: 0;
  }

  .model-area__col--sub {
    flex: none;
    width: 100%;
  }

  .model-area__img--main {
    aspect-ratio: 10 / 13;
    height: auto;
  }

  .model-area__img--sub1,
  .model-area__img--sub2 {
    aspect-ratio: 10 / 13;
    flex: none;
  }
}

/* ============================================================
   4-2. ITEM LIST
   ============================================================ */
.item-list-wrapper {
  border-top: 1px solid var(--color-border);
  padding-top: clamp(24px, 3vw, 36px);
}

.item-list {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.item-list__row {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 16px;
  padding: 14px 0;
  border-bottom: 1px solid var(--color-border);
  transition: background 0.25s ease;
}

.item-list__row:first-child {
  padding-top: 0;
}

.item-list__row:hover {
  background: rgba(0,0,0,0.02);
}

/* ---- dl構造（廃止・互換用） ---- */
.item-list__detail {
  display: contents; /* 親のflexに透過させる */
}

.item-list__link {
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: nowrap;
  min-width: 0;
  color: inherit;
  text-decoration: none;
  justify-content: flex-end;
}

.item-list__name {
  flex: 0 0 auto;
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 300;
  letter-spacing: 0.08em;
  min-width: 0;
  transition: opacity 0.25s ease;
}

.item-list__brand {
  flex: 0 0 auto;
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 300;
  color: var(--color-text-light);
  white-space: nowrap;
  transition: opacity 0.25s ease;
}

.item-list__price {
  flex: 0 0 auto;
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 300;
  color: var(--color-text);
  white-space: nowrap;
  transition: opacity 0.25s ease;
}

.item-list__link:hover .item-list__name,
.item-list__link:hover .item-list__brand,
.item-list__link:hover .item-list__price {
  opacity: 0.5;
}

/* ---- BUYボタン ---- */
.item-list__buy {
  flex: 0 0 auto;
  display: inline-block;
  padding: 4px 14px;
  border: 1px solid var(--color-text);
  font-family: var(--font-body);
  font-size: 11px;
  font-weight: 300;
  letter-spacing: 0.2em;
  color: var(--color-text);
  background: transparent;
  white-space: nowrap;
  text-decoration: none;
  transition: background 0.25s ease, color 0.25s ease;
}

.item-list__buy:hover {
  background: var(--color-text);
  color: var(--color-white);
}

/* SP */
@media (max-width: 767px) {
  .item-list__link {
    flex-wrap: wrap;
    gap: 4px 16px;
    align-items: baseline;
  }

  .item-list__name {
    flex: 0 0 100%;
  }

  .item-list__brand,
  .item-list__price {
    flex: 0 0 auto;
  }

  .item-list__buy {
    flex: 0 0 auto;
    margin-left: auto;
  }
}

/* ============================================================
   SCROLL REVEAL（汎用）
   ============================================================ */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.7s cubic-bezier(0.22, 1, 0.36, 1),
              transform 0.7s cubic-bezier(0.22, 1, 0.36, 1);
}

.reveal.is-visible {
  opacity: 1;
  transform: none;
}

/* ============================================================
   画像：下からふわっと（メイン→サブ1→サブ2 の順）
   ============================================================ */
.reveal-img {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.85s cubic-bezier(0.22, 1, 0.36, 1),
              transform 0.85s cubic-bezier(0.22, 1, 0.36, 1);
}

.reveal-img.is-visible {
  opacity: 1;
  transform: none;
}

.reveal-img--main  { transition-delay: 0s; }
.reveal-img--sub1  { transition-delay: 0.15s; }
.reveal-img--sub2  { transition-delay: 0.3s; }

/* ============================================================
   アイテム行：右からスライドイン（1行ずつ順番に）
   ============================================================ */
.reveal-row {
  opacity: 0;
  transform: translateX(20px);
  transition: opacity 0.6s cubic-bezier(0.22, 1, 0.36, 1),
              transform 0.6s cubic-bezier(0.22, 1, 0.36, 1);
}

.reveal-row.is-visible {
  opacity: 1;
  transform: none;
}

/* nth-childでstagger（最大8行分）*/
.reveal-row:nth-child(1) { transition-delay: 0s; }
.reveal-row:nth-child(2) { transition-delay: 0.07s; }
.reveal-row:nth-child(3) { transition-delay: 0.14s; }
.reveal-row:nth-child(4) { transition-delay: 0.21s; }
.reveal-row:nth-child(5) { transition-delay: 0.28s; }
.reveal-row:nth-child(6) { transition-delay: 0.35s; }
.reveal-row:nth-child(7) { transition-delay: 0.42s; }
.reveal-row:nth-child(8) { transition-delay: 0.49s; }

/* ============================================================
   INTRODUCTION アニメーション
   ============================================================ */

/* --- タイトル：文字が下から1文字ずつ浮き上がる --- */
.intro-title {
  overflow: hidden; /* span単位でclipするためoverflowは不要だが念のため */
}

.intro-title .char {
  display: inline-block;
  opacity: 0;
  transform: translateY(0.6em);
  transition: opacity 0.55s cubic-bezier(0.22, 1, 0.36, 1),
              transform 0.55s cubic-bezier(0.22, 1, 0.36, 1);
}

.intro-title.is-visible .char {
  opacity: 1;
  transform: none;
}

/* --- リード文・notice：ブラーが晴れながらふわっと浮き上がる --- */
.intro-sub,
.intro-lead,
.intro-notice {
  opacity: 0;
  transform: translateY(12px);
  filter: blur(6px);
  transition: opacity 0.9s cubic-bezier(0.22, 1, 0.36, 1),
              transform 0.9s cubic-bezier(0.22, 1, 0.36, 1),
              filter 0.9s cubic-bezier(0.22, 1, 0.36, 1);
}

.intro-sub.is-visible,
.intro-lead.is-visible,
.intro-notice.is-visible {
  opacity: 1;
  transform: none;
  filter: blur(0px);
}

.intro-notice.is-visible {
  transition-delay: 0.15s;
}

/* --- ボタン：フェードイン + ボーダーが伸びる --- */
.intro-links {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.7s cubic-bezier(0.22, 1, 0.36, 1),
              transform 0.7s cubic-bezier(0.22, 1, 0.36, 1);
  transition-delay: 0.3s;
}

.intro-links.is-visible {
  opacity: 1;
  transform: none;
}

/* ボーダー伸長：ボタン下辺に疑似要素でアンダーラインを走らせる */
.introduction__link-btn {
  position: relative;
}

.introduction__link-btn::before {
  content: '';
  position: absolute;
  inset: auto 0 -1px 0;
  height: 1px;
  background: var(--color-text);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 0.6s cubic-bezier(0.76, 0, 0.24, 1);
}

.intro-links.is-visible .introduction__link-btn::before {
  transform: scaleX(1);
  transition-delay: 0.7s;
}
.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}