/* ===========================
   Airy Linen touch — airylinen.css
   =========================== */

/* Variables */
:root {
  --color-bg: #f9f7f4;
  --color-bg-alt: #f2ede8;
  --color-text: #2c2825;
  --color-text-light: #7a7068;
  --color-accent: #b49a7e;
  --color-accent-dark: #8c7560;
  --color-line: #d9d0c6;
  --color-white: #ffffff;
  --font-display: 'Cormorant Garamond', serif;
  --font-body: 'Noto Sans JP', sans-serif;
  --font-num: 'Lato', sans-serif;
}

/* Reset */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  font-weight: 300;
  line-height: 1.8;
  font-size: 14px;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }

/* 数字のオールドスタイル防止 */
h1, h2, h3, h4, h5, h6 { font-variant-numeric: lining-nums; }
.num {
  font-family: var(--font-num);
  font-weight: 300;
  font-variant-numeric: lining-nums;
}

/* Utility */
.section-label {
  font-family: var(--font-num);
  font-weight: 300;
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--color-accent);
  text-transform: uppercase;
  display: block;
  margin-bottom: 12px;
}

/* Reveal animation */
.reveal { opacity: 0; transform: translateY(30px); transition: opacity 0.8s ease, transform 0.8s ease; }
.reveal.is-visible { opacity: 1; transform: translateY(0); }
.reveal-item { opacity: 0; transform: translateY(20px); transition: opacity 0.6s ease, transform 0.6s ease; }
.reveal-item.is-visible { opacity: 1; transform: translateY(0); }
.reveal-item:nth-child(1) { transition-delay: 0.1s; }
.reveal-item:nth-child(2) { transition-delay: 0.2s; }
.reveal-item:nth-child(3) { transition-delay: 0.3s; }
.reveal-item:nth-child(4) { transition-delay: 0.4s; }
.reveal-item:nth-child(5) { transition-delay: 0.5s; }

/* ===========================
   FV
   =========================== */
.fv {
  position: relative;
  width: 100%;
  background: var(--color-bg-alt);
}
.fv__inner {
  display: grid;
  grid-template-columns: 1.6fr 1fr;
  align-items: stretch;
}
.fv__image {
  overflow: hidden;
  position: relative;
  aspect-ratio: 1400 / 800;
}
.fv__slider {
  position: relative;
  width: 100%;
  height: 100%;
}
.fv__slide {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: block;
  opacity: 0;
  transition: opacity 1.2s ease;
}
.fv__slide.is-active {
  opacity: 1;
}
.fv__slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.fv__text {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 80px 60px;
}
.fv__label {
  font-family: var(--font-num);
  font-weight: 300;
  font-size: 11px;
  letter-spacing: 0.25em;
  color: var(--color-accent);
  text-transform: uppercase;
  margin-bottom: 20px;
}
.fv__series {
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(32px, 4vw, 52px);
  letter-spacing: 0.05em;
  line-height: 1.2;
  color: var(--color-text);
  margin-bottom: 32px;
}
.fv__catch {
  font-family: var(--font-body);
  font-weight: 300;
  font-size: clamp(18px, 2.2vw, 26px);
  line-height: 1.7;
  color: var(--color-text);
  margin-bottom: 20px;
  border-left: 1px solid var(--color-accent);
  padding-left: 20px;
}
.fv__sub {
  font-size: 13px;
  color: var(--color-text-light);
  letter-spacing: 0.05em;
}

/* ===========================
   Concept
   =========================== */
.concept {
  padding: 100px 40px;
  background: var(--color-white);
}
.concept__inner {
  max-width: 680px;
  margin: 0 auto;
}
.concept__title {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(22px, 3vw, 34px);
  line-height: 1.5;
  margin-bottom: 48px;
  color: var(--color-text);
}
.concept__body p {
  margin-bottom: 28px;
  font-size: 14px;
  line-height: 2;
  color: var(--color-text);
}
.concept__closing {
  font-family: var(--font-display);
  font-size: clamp(18px, 2.5vw, 26px) !important;
  font-style: italic;
  color: var(--color-accent-dark) !important;
  border-left: 2px solid var(--color-accent);
  padding-left: 20px;
  margin: 40px 0 !important;
}

/* ===========================
   Experience
   =========================== */
.experience {
  padding: 100px 40px;
  background: var(--color-bg-alt);
}
.experience__inner {
  max-width: 800px;
  margin: 0 auto;
}
.experience__title {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(24px, 3vw, 36px);
  margin-bottom: 60px;
  color: var(--color-text);
}
.experience__list {
  display: flex;
  flex-direction: column;
  gap: 40px;
}
.experience__item {
  display: grid;
  grid-template-columns: 60px 1fr;
  gap: 24px;
  align-items: start;
  padding-bottom: 40px;
  border-bottom: 1px solid var(--color-line);
}
.experience__item:last-child { border-bottom: none; padding-bottom: 0; }
.experience__num {
  font-family: var(--font-num);
  font-weight: 300;
  font-size: 28px;
  color: var(--color-accent);
  line-height: 1;
  padding-top: 4px;
}
.experience__content h3 {
  font-size: 15px;
  font-weight: 400;
  margin-bottom: 8px;
  color: var(--color-text);
}
.experience__content p {
  font-size: 13px;
  color: var(--color-text-light);
  line-height: 1.9;
}

/* ===========================
   Icons
   =========================== */
.icons {
  padding: 100px 40px;
  background: var(--color-bg);
}
.icons__inner {
  max-width: 900px;
  margin: 0 auto;
}
.icons__title {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(24px, 3vw, 36px);
  margin-bottom: 60px;
  color: var(--color-text);
}
.icons__list {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 20px;
}
.icons__item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  padding: 32px 16px;
  background: var(--color-white);
  border: 1px solid var(--color-line);
  transition: border-color 0.3s ease, transform 0.3s ease;
}
.icons__item:hover { border-color: var(--color-accent); transform: translateY(-4px); }
.icons__icon {
  width: 48px;
  height: 48px;
  color: var(--color-accent-dark);
}
.icons__icon img { width: 100%; height: 100%; object-fit: contain; }
.icons__icon svg { width: 100%; height: 100%; }
.icons__name {
  font-size: 12px;
  text-align: center;
  line-height: 1.6;
  color: var(--color-text);
  letter-spacing: 0.05em;
}

/* ===========================
   Features Slider
   =========================== */
.features {
  padding: 100px 0;
  background: var(--color-white);
  overflow: hidden;
}
.features__inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 40px;
}
.features__slider {
  position: relative;
  overflow: hidden;
  margin-top: 40px;
}
.features__track {
  display: flex;
  transition: transform 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}
.features__slide {
  min-width: 100%;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  align-items: stretch;
}
.features__slide-image {
  overflow: hidden;
  aspect-ratio: 4/3;
}
.features__slide-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}
.features__slide-image:hover img { transform: scale(1.03); }
.features__slide-text {
  padding: 60px;
  background: var(--color-bg-alt);
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.features__num {
  font-family: var(--font-num);
  font-weight: 300;
  font-size: 40px;
  color: var(--color-line);
  line-height: 1;
  margin-bottom: 16px;
}
.features__name {
  font-size: 13px;
  font-weight: 400;
  letter-spacing: 0.1em;
  color: var(--color-accent);
  margin-bottom: 16px;
  text-transform: uppercase;
}
.features__catch {
  font-family: var(--font-display);
  font-size: clamp(18px, 2.2vw, 26px);
  font-weight: 400;
  line-height: 1.5;
  color: var(--color-text);
  margin-bottom: 20px;
}
.features__body {
  font-size: 13px;
  line-height: 2;
  color: var(--color-text-light);
  margin-bottom: 16px;
}
.features__note {
  font-size: 11px;
  color: var(--color-text-light);
  line-height: 1.7;
  border-top: 1px solid var(--color-line);
  padding-top: 12px;
  margin-top: auto;
}
.features__controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
  margin-top: 32px;
}
.features__btn {
  width: 40px;
  height: 40px;
  border: 1px solid var(--color-line);
  background: var(--color-white);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text);
  transition: border-color 0.3s ease, background 0.3s ease;
}
.features__btn:hover { border-color: var(--color-accent); background: var(--color-bg-alt); }
.features__btn svg { width: 18px; height: 18px; }
.features__dots { display: flex; gap: 8px; }
.features__dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-line);
  cursor: pointer;
  transition: background 0.3s ease;
}
.features__dot.is-active { background: var(--color-accent); }

/* ===========================
   Coordinate Slider
   =========================== */
.coordinate {
  padding: 100px 40px;
  background: var(--color-bg-alt);
  overflow: hidden;
}
.coordinate__inner {
  max-width: 900px;
  margin: 0 auto;
}
.coordinate__title {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(22px, 3vw, 34px);
  line-height: 1.5;
  margin-bottom: 48px;
  color: var(--color-text);
}
.coordinate__slider {
  position: relative;
  overflow: hidden;
}
.coordinate__track {
  display: flex;
  transition: transform 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}
.coordinate__slide {
  min-width: 100%;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
}
.coordinate__image {
  overflow: hidden;
  aspect-ratio: 3/4;
}
.coordinate__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.coordinate__info {
  padding: 20px 0;
}
.coordinate__label {
  font-family: var(--font-num);
  font-weight: 300;
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--color-accent);
  text-transform: uppercase;
  margin-bottom: 12px;
}
.coordinate__items {
  font-size: 14px;
  font-weight: 400;
  line-height: 1.8;
  color: var(--color-text);
  margin-bottom: 24px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--color-line);
}
.coordinate__links {
  display: flex;
  flex-direction: column;
  gap: 0;
}
.coordinate__link-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  border-bottom: 1px solid var(--color-line);
  padding: 14px 0;
}
.coordinate__link-name {
  font-size: 13px;
  color: var(--color-text);
}
.coordinate__link {
  font-size: 11px;
  letter-spacing: 0.05em;
  color: var(--color-accent-dark);
  white-space: nowrap;
  border-bottom: 1px solid var(--color-accent-dark);
  padding-bottom: 2px;
  transition: color 0.3s ease, border-color 0.3s ease;
}
.coordinate__link:hover { color: var(--color-text); border-color: var(--color-text); }
.coordinate__controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
  margin-top: 40px;
}
.coordinate__btn {
  width: 40px;
  height: 40px;
  border: 1px solid var(--color-line);
  background: transparent;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text);
  transition: border-color 0.3s ease;
}
.coordinate__btn:hover { border-color: var(--color-accent); }
.coordinate__btn svg { width: 18px; height: 18px; }
.coordinate__dots { display: flex; gap: 8px; }
.coordinate__dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-line);
  cursor: pointer;
  transition: background 0.3s ease;
}
.coordinate__dot.is-active { background: var(--color-accent); }

/* ===========================
   Item Detail
   =========================== */
.items {
  padding: 100px 40px;
  background: var(--color-bg);
}
.items__inner {
  max-width: 900px;
  margin: 0 auto;
}
.items__title {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(24px, 3vw, 36px);
  margin-bottom: 60px;
  color: var(--color-text);
}
.item-detail {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  margin-bottom: 80px;
  padding-bottom: 80px;
  border-bottom: 1px solid var(--color-line);
}
.item-detail:last-child { border-bottom: none; margin-bottom: 0; padding-bottom: 0; }
.item-detail--reverse { direction: rtl; }
.item-detail--reverse > * { direction: ltr; }
.item-detail__slider {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.item-detail__main {
  position: relative;
  overflow: hidden;
  aspect-ratio: 760 / 980; /* ① 比率の指定を親枠に移動する */
}
.item-detail__track {
  display: flex;
  height: 100%; /* ② トラックの高さを親に合わせる */
  transition: transform 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}
.item-detail__slide {
width: 100%; /* ③ 幅を確実に100%にする */
  min-width: 100%;
  height: 100%; /* ④ 高さを親に合わせる */
  overflow: hidden;
  flex-shrink: 0;
}
.item-detail__slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.item-detail__prev,
.item-detail__next {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 36px;
  height: 36px;
  background: rgba(255,255,255,0.85);
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text);
  transition: background 0.3s ease;
  z-index: 2;
}
.item-detail__prev:hover,
.item-detail__next:hover { background: var(--color-white); }
.item-detail__prev { left: 10px; }
.item-detail__next { right: 10px; }
.item-detail__prev svg,
.item-detail__next svg { width: 16px; height: 16px; }
.item-detail__thumbs {
  display: flex;
  gap: 6px;
  margin-top: 0;
}
.item-detail__thumb {
  width: calc(20% - 4.8px);
  aspect-ratio: 760 / 980;
  overflow: hidden;
  border: 1px solid transparent;
  cursor: pointer;
  padding: 0;
  background: none;
  transition: border-color 0.3s ease;
  flex-shrink: 0;
  display: block;
}
.item-detail__thumb.is-active { border-color: var(--color-accent); }
.item-detail__thumb img { width: 100%; height: 100%; object-fit: cover; display: block; }
.item-detail__text { padding: 20px 0; }
.item-detail__sku {
  font-family: var(--font-num);
  font-weight: 300;
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--color-accent);
  margin-bottom: 12px;
}
.item-detail__name {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(20px, 2.5vw, 28px);
  line-height: 1.4;
  color: var(--color-text);
  margin-bottom: 16px;
}
.item-detail__price {
  font-family: var(--font-num);
  font-weight: 300;
  font-size: 20px;
  color: var(--color-text);
  margin-bottom: 12px;
}
.item-detail__color {
  font-size: 12px;
  color: var(--color-text-light);
  margin-bottom: 28px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--color-line);
}
.item-detail__desc {
  font-size: 13px;
  line-height: 1.9;
  color: var(--color-text-light);
  margin-bottom: 28px;
}
.item-detail__btn {
  display: inline-block;
  padding: 14px 32px;
  background: var(--color-text);
  color: var(--color-white);
  font-size: 12px;
  letter-spacing: 0.15em;
  transition: background 0.3s ease;
}
.item-detail__btn:hover { background: var(--color-accent-dark); }

/* ===========================
   Lineup
   =========================== */
.lineup {
  padding: 100px 40px;
  background: var(--color-white);
}
.lineup__inner {
  max-width: 1000px;
  margin: 0 auto;
}
.lineup__title {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(24px, 3vw, 36px);
  margin-bottom: 48px;
  color: var(--color-text);
}
.lineup__grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 20px;
}
.lineup__item a {
  display: block;
  transition: opacity 0.3s ease;
}
.lineup__item a:hover { opacity: 0.75; }
.lineup__image {
  overflow: hidden;
  aspect-ratio: 3/4;
  margin-bottom: 12px;
  background: var(--color-bg-alt);
}
.lineup__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.lineup__item a:hover .lineup__image img { transform: scale(1.04); }
.lineup__sku {
  font-family: var(--font-num);
  font-weight: 300;
  font-size: 10px;
  letter-spacing: 0.15em;
  color: var(--color-accent);
  margin-bottom: 4px;
}
.lineup__name {
  font-size: 12px;
  line-height: 1.6;
  color: var(--color-text);
  margin-bottom: 4px;
}
.lineup__price {
  font-family: var(--font-num);
  font-weight: 300;
  font-size: 13px;
  color: var(--color-text-light);
}

/* ===========================
   Footer
   =========================== */
.footer {
  padding: 100px 40px 60px;
  background: var(--color-bg-alt);
}
.footer__inner {
  max-width: 1000px;
  margin: 0 auto;
}
.footer__title {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(24px, 3vw, 36px);
  margin-bottom: 48px;
  color: var(--color-text);
}
.footer__related {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--color-line);
  margin-bottom: 48px;
}
.footer__related-item {
  background: var(--color-bg-alt);
  padding: 0;
  transition: opacity 0.3s ease;
  overflow: hidden;
}
.footer__related-item:hover { opacity: 0.85; }
.footer__related-item--current { cursor: default; }
.footer__related-item--current:hover { opacity: 1; }
.footer__related-item--current .footer__related-name::after {
  content: '';
  display: inline-block;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--color-accent);
  margin-left: 8px;
  vertical-align: middle;
}
.footer__related-image {
  width: 100%;
  aspect-ratio: 550 / 280;
  overflow: hidden;
  background: var(--color-bg-alt);
}
.footer__related-image img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  transition: transform 0.5s ease;
}
.footer__related-item:hover .footer__related-image img { transform: scale(1.04); }
.footer__related-name {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 18px;
  color: var(--color-text);
  margin: 24px 32px 8px;
}
.footer__related-desc {
  font-size: 12px;
  color: var(--color-text-light);
  line-height: 1.8;
  margin: 0 32px 24px;
}
.footer__wellness-btn {
  display: inline-block;
  padding: 16px 48px;
  border: 1px solid var(--color-text);
  font-size: 12px;
  letter-spacing: 0.15em;
  color: var(--color-text);
  transition: background 0.3s ease, color 0.3s ease;
  margin-bottom: 60px;
}
.footer__wellness-btn:hover { background: var(--color-text); color: var(--color-white); }
.footer__copy {
  font-family: var(--font-num);
  font-weight: 300;
  font-size: 11px;
  color: var(--color-text-light);
  letter-spacing: 0.1em;
}

/* ===========================
   Responsive
   =========================== */
@media (max-width: 768px) {
  .fv__inner { grid-template-columns: 1fr; }
  .fv__image { aspect-ratio: 750 / 900; }
  .fv__text { padding: 48px 24px; }
  .concept { padding: 72px 24px; }
  .experience { padding: 72px 24px; }
  .icons { padding: 72px 24px; }
  .icons__list { grid-template-columns: repeat(3, 1fr); gap: 12px; }
  .icons__item { padding: 20px 12px; }
  .features { padding: 72px 0; }
  .features__inner { padding: 0 24px; }
  .features__slide { grid-template-columns: 1fr; }
  .features__slide-text { padding: 40px 24px; }
  .coordinate { padding: 72px 24px; }
  .coordinate__slide { grid-template-columns: 1fr; gap: 24px; }
  .coordinate__link-row { flex-wrap: wrap; gap: 8px; }
  .items { padding: 72px 24px; }
  .item-detail { grid-template-columns: 1fr; gap: 32px; }
  .item-detail--reverse { direction: ltr; }
  .lineup { padding: 72px 24px; }
  .lineup__grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
  .footer { padding: 72px 24px 48px; }
  .footer__related { grid-template-columns: repeat(2, 1fr); }
  .footer__related-name { margin: 16px 16px 6px; font-size: 15px; }
  .footer__related-desc { margin: 0 16px 16px; font-size: 11px; }
  .coupon { padding: 60px 24px; }
  .coupon__grid { grid-template-columns: 1fr; gap: 16px; }
  .coupon__item { padding: 32px 20px; }
}

/* ===========================
   Coupon
   =========================== */
.coupon {
  padding: 80px 40px;
  background: #f9f7f4;
  text-align: center;
}
.coupon__inner {
  max-width: 800px;
  margin: 0 auto;
}
.coupon__label {
  font-family: var(--font-num);
  font-weight: 300;
  font-size: 11px;
  letter-spacing: 0.25em;
  color: #b49a7e;
  text-transform: uppercase;
  margin-bottom: 16px;
}
.coupon__title {
  font-family: var(--font-body);
  font-weight: 300;
  font-size: clamp(22px, 3vw, 32px);
  color: #b49a7e;
  margin-bottom: 12px;
  letter-spacing: 0.05em;
}
.coupon__period {
  font-family: var(--font-num);
  font-weight: 300;
  font-size: 13px;
  color: #b49a7e;
  letter-spacing: 0.08em;
  margin-bottom: 48px;
}
.coupon__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}
.coupon__item {
  border: 1px solid #b49a7e;
  padding: 40px 24px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
}
.coupon__buy {
  font-family: var(--font-num);
  font-weight: 300;
  font-size: 13px;
  letter-spacing: 0.2em;
  color: #b49a7e;
}
.coupon__off {
  font-family: var(--font-num);
  font-weight: 300;
  font-size: clamp(36px, 5vw, 52px);
  color: #b49a7e;
  letter-spacing: 0.02em;
  line-height: 1;
}
.coupon__btn {
  display: inline-block;
  padding: 12px 36px;
  background: #b49a5e;
  color: #f9f7f4;
  font-family: var(--font-body);
  font-weight: 300;
  font-size: 12px;
  letter-spacing: 0.15em;
  transition: background 0.3s ease, color 0.3s ease;
}
.coupon__btn:hover { background: #c9b07a; }