:root {
  /* 黒×朱×金 — 和彫り(伝統的な日本の刺青)をイメージした配色 */
  --bg: #14100d;
  --bg-panel: #1d1712;
  --bg-panel-hover: #241c16;
  --ink: #f3ead9;
  --muted: #b3a58c;
  --accent: #b3242a;
  --accent-dark: #8f1c22;
  --gold: #c6a24f;
  --gold-soft: #8a723f;
  --border: #3a2f24;
  --radius: 10px;
  --font-heading: "Shippori Mincho", "Hiragino Mincho ProN", Georgia, serif;
  font-size: 16px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: "Helvetica Neue", Arial, "Hiragino Kaku Gothic ProN", "Yu Gothic", sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
}

a { color: inherit; text-decoration: none; }

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

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Decorative gold rule used under the header and between major sections */
.gold-rule {
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--gold) 15%, var(--gold) 85%, transparent);
  opacity: 0.6;
}

/* Header */
.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 24px;
  background: var(--bg);
  border-bottom: 1px solid var(--gold-soft);
  position: sticky;
  top: 0;
  z-index: 10;
}

.logo {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: bold;
  letter-spacing: 1px;
  color: var(--ink);
}

.logo span { color: var(--accent); }

.main-nav {
  display: flex;
  align-items: center;
  gap: 22px;
}

.main-nav a {
  font-size: 0.95rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--ink);
}

.main-nav a:hover { color: var(--gold); }

.cart-link {
  position: relative;
}

.cart-badge {
  position: absolute;
  top: -8px;
  right: -14px;
  background: var(--accent);
  color: #fff;
  font-size: 0.7rem;
  padding: 1px 6px;
  border-radius: 999px;
}

.cart-badge.hidden { display: none; }

.lang-switch {
  display: flex;
  gap: 4px;
  border: 1px solid var(--gold-soft);
  border-radius: 999px;
  overflow: hidden;
}

.lang-switch button {
  border: none;
  background: transparent;
  padding: 4px 10px;
  font-size: 0.8rem;
  cursor: pointer;
  font-family: inherit;
  color: var(--muted);
}

.lang-switch button.active {
  background: var(--gold);
  color: var(--bg);
}

/* Mobile header: stack the nav below the logo so links get room to
   breathe and the EN/JA switch never gets squeezed off-screen. */
@media (max-width: 600px) {
  .site-header {
    flex-wrap: wrap;
    row-gap: 10px;
    padding: 14px 16px;
  }

  .logo {
    font-size: 1.25rem;
  }

  .main-nav {
    width: 100%;
    justify-content: space-between;
    gap: 8px;
    flex-wrap: nowrap;
  }

  .main-nav a {
    font-size: 0.78rem;
    white-space: nowrap;
  }

  .lang-switch {
    flex-shrink: 0;
  }

  .lang-switch button {
    padding: 4px 8px;
    font-size: 0.75rem;
  }
}

/* Hero */
.hero {
  text-align: center;
  padding: 90px 24px 70px;
  border-bottom: 1px solid var(--gold-soft);
  background:
    radial-gradient(ellipse at top, rgba(179, 36, 42, 0.12), transparent 60%),
    var(--bg);
}

.hero h1 {
  font-family: var(--font-heading);
  font-size: 2.5rem;
  max-width: 720px;
  margin: 0 auto 20px;
  color: var(--ink);
}

.hero p {
  max-width: 560px;
  margin: 0 auto 32px;
  color: var(--muted);
}

.btn {
  display: inline-block;
  background: var(--accent);
  color: #fdf6ea;
  padding: 12px 30px;
  border-radius: 999px;
  border: 1px solid var(--accent);
  font-size: 0.95rem;
  letter-spacing: 0.5px;
  cursor: pointer;
  font-family: inherit;
}

.btn:hover { background: var(--accent-dark); border-color: var(--accent-dark); }

.btn-outline {
  background: transparent;
  color: var(--gold);
  border: 1px solid var(--gold);
}

.btn-outline:hover { background: rgba(198, 162, 79, 0.1); }

/* Woodblock-inspired wave divider (seigaiha-style arcs) */
.wave-divider {
  height: 34px;
  background-color: var(--bg);
  background-image: radial-gradient(circle at 10px -6px, transparent 12px, var(--bg) 13px),
    radial-gradient(circle at 10px 6px, var(--gold-soft) 0 1px, transparent 1px);
  background-size: 20px 20px;
  background-position: 0 -6px;
  opacity: 0.55;
}

/* Why buy this piece */
.why {
  padding: 70px 24px;
  border-bottom: 1px solid var(--gold-soft);
  background:
    radial-gradient(ellipse at bottom, rgba(198, 162, 79, 0.08), transparent 60%),
    var(--bg);
}

.why-inner {
  max-width: 640px;
  margin: 0 auto;
  text-align: center;
}

.why-inner h2 {
  font-family: var(--font-heading);
  font-size: 1.7rem;
  margin-bottom: 28px;
  color: var(--ink);
}

.why-inner p {
  color: var(--muted);
  font-size: 1rem;
  margin: 0 0 18px;
  line-height: 1.85;
}

.why-highlight {
  margin-top: 28px !important;
  font-family: var(--font-heading);
  font-size: 1.2rem;
  color: var(--gold);
}

/* Features */
.features {
  padding: 60px 24px;
  border-bottom: 1px solid var(--gold-soft);
}

.features h2 {
  text-align: center;
  font-family: var(--font-heading);
  margin-bottom: 40px;
  color: var(--ink);
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 32px;
  max-width: 1000px;
  margin: 0 auto;
}

.feature-grid h3 {
  font-size: 1.05rem;
  margin-bottom: 8px;
  color: var(--gold);
}

.feature-grid p {
  color: var(--muted);
  font-size: 0.92rem;
}

/* Product grid */
.section-title {
  font-family: var(--font-heading);
  font-size: 1.7rem;
  margin: 50px 0 24px;
  text-align: center;
  color: var(--ink);
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 24px;
  padding: 0 24px 60px;
  max-width: 1100px;
  margin: 0 auto;
}

.card {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform 0.15s ease, box-shadow 0.15s ease, border-color 0.15s ease;
}

.card:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 24px rgba(0,0,0,0.4);
  border-color: var(--gold-soft);
}

.card-img {
  aspect-ratio: 1;
  background: var(--bg-panel);
  padding: 14px;
  position: relative;
}

.card-sold {
  opacity: 0.55;
}

.sold-badge {
  position: absolute;
  top: 10px;
  right: 10px;
  background: var(--accent);
  color: #fdf6ea;
  font-size: 0.72rem;
  letter-spacing: 0.5px;
  padding: 4px 10px;
  border-radius: 999px;
  text-transform: uppercase;
}

.card-img img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  border-radius: 4px;
  background: #faf6ee; /* keeps the flash-sheet artwork legible against the dark frame */
}

.card-body { padding: 14px 16px; border-top: 1px solid var(--border); }

.card-title { font-size: 1rem; margin: 0 0 6px; color: var(--ink); }

.card-artist {
  font-size: 0.78rem;
  color: var(--muted);
  margin: 0 0 8px;
}

.card-price { color: var(--accent); font-weight: bold; margin: 0; }

.card-bottom-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-top: 8px;
}

.like-btn {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 4px 11px;
  color: var(--muted);
  font-family: inherit;
  font-size: 0.82rem;
  cursor: pointer;
  transition: border-color 0.15s ease, color 0.15s ease;
}

.like-btn:hover { border-color: var(--gold-soft); color: var(--gold); }

.like-btn.liked { color: var(--accent); border-color: var(--accent); }

.like-heart { font-size: 0.95rem; line-height: 1; }

/* Mobile product grid: show 3 columns instead of 1 so the collection
   is easier to browse on a phone. Text/spacing shrink to fit. */
@media (max-width: 600px) {
  .grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
    padding: 0 12px 40px;
  }

  .card-img {
    padding: 6px;
  }

  .card-body {
    padding: 8px 6px;
  }

  .card-title {
    font-size: 0.76rem;
    margin-bottom: 4px;
    line-height: 1.3;
  }

  .card-artist {
    font-size: 0.6rem;
    margin-bottom: 4px;
  }

  .card-price {
    font-size: 0.78rem;
  }

  .card-bottom-row {
    flex-wrap: wrap;
    gap: 4px;
    margin-top: 6px;
  }

  .like-btn {
    padding: 3px 7px;
    font-size: 0.65rem;
  }

  .like-heart {
    font-size: 0.8rem;
  }

  .sold-badge {
    font-size: 0.58rem;
    padding: 3px 6px;
    top: 6px;
    right: 6px;
  }
}

/* Filters */
.filter-bar {
  display: flex;
  justify-content: center;
  gap: 10px;
  flex-wrap: wrap;
  padding: 0 24px 20px;
}

.filter-bar button {
  border: 1px solid var(--gold-soft);
  background: transparent;
  color: var(--muted);
  padding: 6px 16px;
  border-radius: 999px;
  cursor: pointer;
  font-family: inherit;
  font-size: 0.85rem;
}

.filter-bar button.active {
  background: var(--gold);
  border-color: var(--gold);
  color: var(--bg);
}

/* Product detail */
.product-detail {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 50px;
  padding: 50px 24px;
  max-width: 1000px;
  margin: 0 auto;
}

@media (max-width: 700px) {
  .product-detail { grid-template-columns: 1fr; gap: 24px; }
}

.product-detail img {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: #faf6ee;
  padding: 14px;
}

.product-detail h1 {
  font-family: var(--font-heading);
  margin-top: 0;
  color: var(--ink);
}

.product-artist {
  font-size: 0.9rem;
  color: var(--gold);
  margin: 0 0 14px;
}

.product-price-row {
  display: flex;
  align-items: center;
  gap: 18px;
  margin: 12px 0 4px;
}

.product-price {
  font-size: 1.6rem;
  color: var(--accent);
  font-weight: bold;
  margin: 0;
}

.product-price-note {
  color: var(--muted);
  font-size: 0.85rem;
  margin-bottom: 24px;
}

.product-sold-note {
  display: inline-block;
  background: var(--accent);
  color: #fdf6ea;
  padding: 10px 22px;
  border-radius: 999px;
  font-size: 0.9rem;
}

.product-includes {
  font-size: 0.85rem;
  color: var(--muted);
  margin-top: 24px;
  border-top: 1px solid var(--border);
  padding-top: 16px;
}

.back-link {
  display: inline-block;
  margin: 24px 0 0 24px;
  color: var(--muted);
  font-size: 0.9rem;
}

.back-link:hover { color: var(--gold); }

/* Cart page */
.cart-page {
  max-width: 800px;
  margin: 0 auto;
  padding: 50px 24px 80px;
}

.cart-page h1 {
  font-family: var(--font-heading);
  color: var(--ink);
}

table.cart-table {
  width: 100%;
  border-collapse: collapse;
  margin: 24px 0;
}

table.cart-table th {
  text-align: left;
  border-bottom: 1px solid var(--gold-soft);
  padding: 10px 6px;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--muted);
}

table.cart-table td {
  padding: 14px 6px;
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
  color: var(--ink);
}

.cart-row-product {
  display: flex;
  align-items: center;
  gap: 14px;
}

.cart-row-product img {
  width: 56px;
  height: 56px;
  object-fit: contain;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: #faf6ee;
  padding: 4px;
}

.qty-input {
  width: 56px;
  padding: 4px 8px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-family: inherit;
  background: var(--bg-panel);
  color: var(--ink);
}

.remove-link {
  color: var(--accent);
  font-size: 0.85rem;
  cursor: pointer;
  background: none;
  border: none;
  font-family: inherit;
}

.cart-summary {
  display: flex;
  justify-content: flex-end;
  gap: 24px;
  align-items: center;
  margin-top: 20px;
}

.cart-summary .subtotal {
  font-size: 1.3rem;
  font-weight: bold;
  color: var(--ink);
}

.cart-note {
  color: var(--muted);
  font-size: 0.82rem;
  margin-top: 18px;
  text-align: right;
}

.cart-sold-warning {
  color: var(--accent);
  font-size: 0.88rem;
  text-align: right;
  margin-top: 12px;
}

.empty-state {
  text-align: center;
  padding: 60px 0;
  color: var(--muted);
}

/* Result pages (success/cancel) */
.result-page {
  max-width: 560px;
  margin: 0 auto;
  padding: 100px 24px;
  text-align: center;
}

.result-page h1 {
  font-family: var(--font-heading);
  color: var(--ink);
}

.result-page p { color: var(--muted); }

.download-box {
  margin: 30px 0;
  padding: 24px;
  border: 1px dashed var(--gold-soft);
  border-radius: var(--radius);
}

/* Admin page (/admin.html) */
.admin-page {
  max-width: 1200px;
  margin: 0 auto;
  padding: 50px 24px 80px;
}

.admin-page h1 {
  font-family: var(--font-heading);
  color: var(--ink);
}

.admin-note {
  color: var(--muted);
  font-size: 0.88rem;
  margin-bottom: 30px;
  line-height: 1.7;
}

/* The add/edit form stays narrower than the page so its text fields don't stretch
   uncomfortably wide; the product/order tables below it use the full page width. */
.admin-page form,
.admin-page > .admin-note:first-of-type {
  max-width: 640px;
}

.admin-page form {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.admin-page label {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 0.9rem;
  color: var(--muted);
}

.admin-page input[type="text"],
.admin-page input[type="number"],
.admin-page input[type="file"],
.admin-page select,
.admin-page textarea {
  font-family: inherit;
  font-size: 1rem;
  padding: 10px 12px;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: var(--bg-panel);
  color: var(--ink);
}

.admin-page textarea {
  resize: vertical;
}

.admin-page button {
  align-self: flex-start;
}

#translateResult {
  display: flex;
  flex-direction: column;
  gap: 18px;
  padding: 16px;
  border: 1px dashed var(--gold-soft);
  border-radius: var(--radius);
}

.admin-status {
  margin-top: 20px;
  color: var(--gold);
  font-size: 0.92rem;
}

.admin-status-error {
  color: var(--accent);
}

.admin-checkbox-label {
  flex-direction: row !important;
  align-items: center;
  gap: 8px !important;
}

.admin-form-actions {
  display: flex;
  gap: 12px;
  align-items: center;
}

.admin-divider {
  border: none;
  border-top: 1px solid var(--gold-soft);
  margin: 44px 0 24px;
}

.admin-page h2 {
  font-family: var(--font-heading);
  color: var(--ink);
  margin-bottom: 12px;
}

.admin-table-scroll {
  overflow-x: auto;
}

.admin-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.88rem;
}

.admin-table th {
  text-align: left;
  border-bottom: 1px solid var(--gold-soft);
  padding: 8px 6px;
  color: var(--muted);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  white-space: nowrap;
}

.admin-table td {
  padding: 10px 6px;
  border-bottom: 1px solid var(--border);
  color: var(--ink);
  vertical-align: middle;
}

.admin-thumb {
  width: 48px;
  height: 48px;
  object-fit: contain;
  background: #faf6ee;
  border-radius: 6px;
  border: 1px solid var(--border);
  padding: 3px;
}

.admin-row-actions {
  display: flex;
  gap: 8px;
  white-space: nowrap;
}

.admin-small-btn {
  padding: 5px 12px;
  font-size: 0.78rem;
}

.admin-delete-btn {
  background: var(--accent);
  border-color: var(--accent);
}

.admin-delete-btn:hover {
  background: var(--accent-dark);
  border-color: var(--accent-dark);
}

.admin-ship-form {
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-width: 170px;
}

.admin-ship-form input[type="text"] {
  padding: 6px 8px;
  font-size: 0.8rem;
}

.admin-note-inline {
  color: var(--muted);
  font-size: 0.78rem;
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--gold-soft);
  padding: 30px 24px;
  text-align: center;
  font-size: 0.8rem;
  color: var(--muted);
}

.footer-links {
  margin-top: 6px;
}

.footer-links a {
  color: var(--muted);
  text-decoration: underline;
}

.footer-links a:hover {
  color: var(--gold, #b08d3d);
}

.legal-page {
  max-width: 760px;
  margin: 0 auto;
  padding: 20px 24px 60px;
}

.legal-intro {
  color: var(--muted);
  margin-bottom: 24px;
  line-height: 1.7;
}

.legal-updated {
  color: var(--muted);
  font-size: 0.85rem;
  margin-bottom: 12px;
}

.legal-page h2 {
  margin-top: 32px;
  margin-bottom: 8px;
  font-size: 1.1rem;
}

.legal-page p {
  line-height: 1.8;
}

.legal-contact-email {
  font-weight: 600;
}

.legal-disclaimer {
  margin-top: 36px;
  padding-top: 16px;
  border-top: 1px solid var(--gold-soft);
  color: var(--muted);
  font-size: 0.8rem;
}

.legal-table {
  width: 100%;
  border-collapse: collapse;
}

.legal-table th,
.legal-table td {
  text-align: left;
  padding: 16px 12px;
  border-bottom: 1px solid var(--gold-soft);
  vertical-align: top;
  line-height: 1.7;
}

.legal-table th {
  width: 34%;
  font-weight: 600;
  white-space: normal;
}

@media (max-width: 600px) {
  .legal-table th,
  .legal-table td {
    display: block;
    width: 100%;
    padding: 8px 4px;
  }
  .legal-table th {
    border-bottom: none;
    padding-bottom: 2px;
  }
}