:root {
  --white: #fff;
  --paper: #f8f5f0;
  --ivory: #eee7dc;
  --line: #ded5c8;
  --text: #312d28;
  --muted: #7b736b;
  --black: #171512;
  --gold: #9d7a46;
  --gold-soft: #d8c29b;
  --serif-en: 'Cormorant Garamond', Georgia, serif;
  --serif-jp: 'Noto Serif JP', serif;
  --sans-jp: 'Noto Sans JP', sans-serif;
  --ease: .35s ease;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--text);
  font-family: var(--sans-jp);
  font-weight: 300;
  line-height: 1.9;
  letter-spacing: .04em;
  -webkit-font-smoothing: antialiased;
}
body.modal-open { overflow: hidden; }
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; }

.site-header {
  position: fixed;
  z-index: 1000;
  top: 0;
  left: 0;
  width: 100%;
  background: rgba(255,255,255,.96);
  border-bottom: 1px solid rgba(222,213,200,.8);
  backdrop-filter: blur(10px);
}
.header-inner {
  max-width: 1180px;
  height: 74px;
  margin: 0 auto;
  padding: 0 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.brand { display: inline-flex; min-width: 190px; flex-direction: column; line-height: 1.25; }
.brand-en {
  font-family: var(--serif-en);
  font-size: 1.02rem;
  letter-spacing: .12em;
  color: var(--black);
}
.brand-ja {
  margin-top: 3px;
  font-family: var(--serif-jp);
  font-size: .62rem;
  letter-spacing: .18em;
  color: var(--muted);
}
.header-nav { display: flex; align-items: center; gap: 10px; }
.header-nav a {
  padding: 8px 14px;
  font-family: var(--serif-en);
  font-size: .78rem;
  letter-spacing: .11em;
  transition: color var(--ease);
  white-space: nowrap;
}
.header-nav a:hover { color: var(--gold); }

.breadcrumb {
  max-width: 1180px;
  margin: 0 auto;
  padding: 104px 28px 22px;
  color: var(--muted);
  font-size: .74rem;
}
.breadcrumb a { border-bottom: 1px solid var(--gold-soft); }
.breadcrumb span { margin: 0 9px; color: var(--gold); }

.product-detail {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 28px 84px;
}
.product-main {
  display: grid;
  grid-template-columns: minmax(0, 1.12fr) minmax(360px, .88fr);
  background: var(--white);
  border: 1px solid var(--line);
  box-shadow: 0 24px 70px rgba(28,22,16,.08);
}
.product-photo {
  width: 100%;
  min-height: 590px;
  padding: 0;
  overflow: hidden;
  border: 0;
  background: var(--ivory);
  cursor: zoom-in;
}
.product-photo img { width: 100%; height: 100%; object-fit: cover; transition: transform .8s ease; }
.product-photo:hover img { transform: scale(1.025); }
.product-copy { padding: clamp(40px, 5vw, 74px); align-self: center; }
.eyebrow {
  display: block;
  margin-bottom: 14px;
  font-family: var(--serif-en);
  font-size: .72rem;
  letter-spacing: .36em;
  text-transform: uppercase;
  color: var(--gold);
}
.product-copy h1 {
  margin: 0 0 18px;
  font-family: var(--serif-jp);
  font-size: clamp(1.55rem, 3vw, 2.35rem);
  font-weight: 300;
  line-height: 1.65;
  letter-spacing: .12em;
  color: var(--black);
}
.product-price {
  margin: 0 0 26px;
  font-family: var(--serif-en);
  font-size: 1.75rem;
  letter-spacing: .06em;
  color: var(--gold);
}
.product-price small {
  margin-left: 8px;
  font-family: var(--serif-jp);
  font-size: .72rem;
  letter-spacing: .06em;
  color: var(--muted);
}
.lead { margin: 0 0 30px; color: var(--muted); font-family: var(--serif-jp); line-height: 2.2; }
.product-actions { display: grid; gap: 11px; }
.button {
  min-height: 52px;
  padding: 13px 20px;
  border: 1px solid var(--text);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--white);
  color: var(--text);
  font-family: var(--serif-jp);
  font-size: .84rem;
  letter-spacing: .12em;
  cursor: pointer;
  transition: background var(--ease), color var(--ease), border-color var(--ease);
}
.button-primary { background: var(--text); color: var(--white); }
.button-primary:hover { background: var(--gold); border-color: var(--gold); }
.button-outline { border-color: var(--gold); }
.button-outline:hover { background: #eee0c9; }

.detail-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
  margin-top: 32px;
}
.detail-box { padding: 34px; background: var(--white); border: 1px solid var(--line); }
.detail-box h2 {
  margin: 0 0 16px;
  font-family: var(--serif-jp);
  font-size: 1.05rem;
  font-weight: 400;
  letter-spacing: .11em;
}
.detail-box p, .detail-box li { margin-top: 0; color: var(--muted); font-size: .88rem; line-height: 2.05; }
.detail-box ul { margin: 0; padding-left: 1.25em; }
.detail-box li + li { margin-top: 6px; }
.detail-box-wide { grid-column: 1 / -1; }
.notice {
  margin-top: 32px;
  padding: 25px 30px;
  border: 1px solid var(--gold-soft);
  background: #f2eadf;
  color: var(--muted);
  font-size: .82rem;
  line-height: 2;
}
.more-products { padding: 74px 0 8px; text-align: center; }
.more-products h2 {
  margin: 0 0 32px;
  font-family: var(--serif-jp);
  font-size: 1.3rem;
  font-weight: 300;
  letter-spacing: .12em;
}
.more-links { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.more-links a {
  padding: 18px;
  background: var(--white);
  border: 1px solid var(--line);
  font-family: var(--serif-jp);
  transition: border-color var(--ease), color var(--ease);
}
.more-links a:hover { color: var(--gold); border-color: var(--gold-soft); }
.footer {
  padding: 26px 28px;
  background: var(--black);
  text-align: center;
  color: rgba(255,255,255,.35);
  font-family: var(--serif-en);
  font-size: .72rem;
  letter-spacing: .16em;
}

.lightbox {
  display: none;
  position: fixed;
  z-index: 2100;
  inset: 0;
  padding: 28px;
  background: rgba(8,7,6,.92);
  align-items: center;
  justify-content: center;
}
.lightbox.open { display: flex; }
.lightbox img { max-width: min(1120px, 92vw); max-height: 88vh; object-fit: contain; }
.lightbox-close {
  position: absolute;
  top: 22px;
  right: 22px;
  width: 42px;
  height: 42px;
  border: 1px solid rgba(255,255,255,.35);
  background: transparent;
  color: var(--white);
  cursor: pointer;
}
.lightbox-close::before, .lightbox-close::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 20px;
  height: 1px;
  background: var(--white);
}
.lightbox-close::before { transform: translate(-50%,-50%) rotate(45deg); }
.lightbox-close::after { transform: translate(-50%,-50%) rotate(-45deg); }

.checkout-modal {
  display: none;
  position: fixed;
  z-index: 2000;
  inset: 0;
  padding: 24px;
  overflow-y: auto;
  background: rgba(8,7,6,.68);
}
.checkout-modal.open { display: block; }
.checkout-dialog {
  width: min(760px, 100%);
  margin: 40px auto;
  background: var(--white);
  border: 1px solid var(--line);
  box-shadow: 0 28px 90px rgba(0,0,0,.24);
}
.checkout-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
  padding: 28px 30px 20px;
  border-bottom: 1px solid var(--line);
}
.checkout-head h2 {
  margin: 0;
  font-family: var(--serif-jp);
  font-size: 1.15rem;
  font-weight: 400;
  letter-spacing: .12em;
}
.checkout-head p { margin: 8px 0 0; color: var(--muted); font-size: .82rem; line-height: 1.8; }
.checkout-close {
  flex: 0 0 auto;
  width: 36px;
  height: 36px;
  border: 1px solid var(--line);
  background: var(--white);
  color: var(--text);
  cursor: pointer;
  font-size: 1.3rem;
  line-height: 1;
}
.checkout-form { padding: 26px 30px 30px; }
.form-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.form-field { display: grid; gap: 7px; }
.form-field.full { grid-column: 1 / -1; }
.form-field label { font-family: var(--serif-jp); font-size: .78rem; letter-spacing: .09em; }
.form-field input, .form-field select, .form-field textarea {
  width: 100%;
  min-height: 44px;
  padding: 10px 12px;
  border: 1px solid var(--line);
  background: var(--white);
  color: var(--text);
  font-size: .9rem;
}
.form-field textarea { min-height: 86px; resize: vertical; }
.postal-row { display: grid; grid-template-columns: 1fr auto; gap: 8px; align-items: center; }
.postal-lookup {
  min-height: 44px;
  padding: 9px 14px;
  border: 1px solid var(--text);
  background: var(--white);
  cursor: pointer;
  font-size: .78rem;
  white-space: nowrap;
}
.postal-lookup:disabled { opacity: .55; cursor: wait; }
.postal-status { min-height: 1.4em; margin: 0; color: var(--muted); font-size: .74rem; }
.checkout-summary {
  margin: 22px 0;
  padding: 18px 20px;
  border: 1px solid var(--line);
  background: var(--ivory);
  line-height: 1.9;
}
.checkout-note { margin: 0 0 20px; color: var(--muted); font-size: .78rem; line-height: 1.9; }
.checkout-submit {
  width: 100%;
  min-height: 50px;
  border: 1px solid var(--text);
  background: var(--text);
  color: var(--white);
  cursor: pointer;
  font-family: var(--serif-jp);
  font-size: .86rem;
  letter-spacing: .13em;
}
.checkout-submit:hover:not(:disabled) { background: var(--gold); border-color: var(--gold); }
.checkout-submit:disabled { opacity: .6; cursor: wait; }

@media (max-width: 900px) {
  .product-main { grid-template-columns: 1fr; }
  .product-photo { min-height: 0; aspect-ratio: 4 / 3; }
}
@media (max-width: 620px) {
  .header-inner { height: 64px; padding: 0 16px; }
  .brand { min-width: 0; }
  .brand-en { font-size: .86rem; }
  .brand-ja { font-size: .55rem; }
  .header-nav a { padding: 6px; font-size: .68rem; }
  .header-nav a:last-child { display: none; }
  .breadcrumb { padding: 88px 18px 18px; }
  .product-detail { padding: 0 18px 58px; }
  .product-copy { padding: 34px 24px 38px; }
  .detail-grid, .more-links { grid-template-columns: 1fr; }
  .detail-box, .notice { padding: 26px 22px; }
  .detail-box-wide { grid-column: auto; }
  .checkout-modal { padding: 12px; }
  .checkout-dialog { margin: 16px auto; }
  .checkout-head, .checkout-form { padding-left: 20px; padding-right: 20px; }
  .form-grid { grid-template-columns: 1fr; }
}