/* ============================================================
   style.css  — アート・クリエイティブ（白基調、スタイリッシュ）
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=DM+Serif+Display:ital@0;1&family=DM+Sans:wght@300;400;500&family=Noto+Serif+JP:wght@300;400&family=Noto+Sans+JP:wght@300;400&display=swap');

:root {
  --ink:       #0d0d0d;
  --ink2:      #2a2a2a;
  --ink3:      #555;
  --dust:      #888;
  --border:    #e0ddd8;
  --bg:        #faf9f7;
  --white:     #ffffff;
  --accent:    #1a1a1a;
  --warm:      #c8b89a;
  --warm2:     #e8dfd0;
  --serif:     'DM Serif Display', 'Noto Serif JP', Georgia, serif;
  --sans:      'DM Sans', 'Noto Sans JP', system-ui, sans-serif;
  --ease:      cubic-bezier(.4,0,.2,1);
  --radius:    2px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }

body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-weight: 300;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}

/* ── ヘッダー ── */
.site-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 200;
  background: rgba(250,249,247,.93);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
}
.header-inner {
  max-width: 1280px; margin: 0 auto;
  padding: 0 48px;
  height: 64px;
  display: flex; align-items: center; justify-content: space-between;
}
.logo {
  display: flex; flex-direction: column; gap: 1px;
  text-decoration: none; color: inherit;
}
.logo-eyebrow {
  font-size: 8.5px; letter-spacing: .45em; text-transform: uppercase;
  color: var(--dust); font-family: var(--sans); font-weight: 400;
}
.logo-name {
  font-family: var(--serif); font-size: 16px; letter-spacing: .04em;
  color: var(--ink); line-height: 1;
}
.header-nav { display: flex; align-items: center; gap: 36px; }
.header-nav a {
  font-size: 11.5px; letter-spacing: .2em; text-transform: uppercase;
  color: var(--ink3); text-decoration: none;
  transition: color .25s var(--ease);
}
.header-nav a:hover { color: var(--ink); }
.nav-divider { width: 1px; height: 14px; background: var(--border); }

/* ── ヒーロー ── */
.hero {
  min-height: 100svh;
  display: grid; grid-template-columns: 1fr 1fr;
  padding-top: 64px;
  overflow: hidden;
}
.hero-left {
  display: flex; flex-direction: column; justify-content: center;
  padding: 80px 60px 80px 80px;
  position: relative;
}
.hero-eyebrow {
  font-size: 10px; letter-spacing: .5em; text-transform: uppercase;
  color: var(--dust); margin-bottom: 28px;
  display: flex; align-items: center; gap: 14px;
}
.hero-eyebrow::before {
  content: ''; display: block;
  width: 32px; height: 1px; background: var(--dust);
}
.hero-title {
  font-family: var(--serif);
  font-size: clamp(44px, 5.5vw, 80px);
  line-height: 1.06; font-weight: 400;
  color: var(--ink); margin-bottom: 28px;
  letter-spacing: -.01em;
}
.hero-title em { font-style: italic; color: var(--ink3); }
.hero-body {
  font-size: 14.5px; color: var(--ink3);
  max-width: 380px; line-height: 2; margin-bottom: 48px;
}
.hero-ctas { display: flex; gap: 16px; align-items: center; }
.btn-primary {
  display: inline-block; padding: 14px 36px;
  background: var(--ink); color: var(--white);
  font-size: 11px; letter-spacing: .25em; text-transform: uppercase;
  text-decoration: none; font-family: var(--sans);
  transition: background .25s var(--ease), color .25s;
  border: 1px solid var(--ink); border-radius: var(--radius);
}
.btn-primary:hover { background: var(--ink2); }
.btn-outline {
  display: inline-block; padding: 13px 28px;
  border: 1px solid var(--border);
  color: var(--ink3); font-size: 11px; letter-spacing: .2em;
  text-transform: uppercase; text-decoration: none; font-family: var(--sans);
  transition: all .25s var(--ease); border-radius: var(--radius);
}
.btn-outline:hover { border-color: var(--ink); color: var(--ink); }
.hero-badge {
  margin-top: 56px; padding-top: 32px;
  border-top: 1px solid var(--border);
  display: flex; gap: 32px;
}
.badge-item { }
.badge-num {
  font-family: var(--serif); font-size: 26px; color: var(--ink);
  display: block; line-height: 1;
}
.badge-label { font-size: 10px; letter-spacing: .25em; color: var(--dust); text-transform: uppercase; }

.hero-right {
  position: relative; overflow: hidden;
  background: var(--warm2);
}
.hero-img-main {
  width: 100%; height: 100%;
  object-fit: cover;
  opacity: .9;
}
.hero-img-overlay {
  position: absolute; bottom: 40px; left: -32px;
  width: 200px; background: var(--white);
  padding: 16px;
  box-shadow: 0 8px 40px rgba(0,0,0,.12);
}
.hero-img-overlay img { width: 100%; aspect-ratio: 1; object-fit: cover; }
.overlay-label {
  font-size: 9px; letter-spacing: .35em; text-transform: uppercase;
  color: var(--dust); margin-top: 10px; display: block;
}

/* ── セクション共通 ── */
.section { padding: 100px 48px; max-width: 1280px; margin: 0 auto; }
.section-eyebrow {
  font-size: 9.5px; letter-spacing: .5em; text-transform: uppercase;
  color: var(--dust); margin-bottom: 16px;
  display: flex; align-items: center; gap: 14px;
}
.section-eyebrow::after {
  content: ''; flex: 0 0 24px; height: 1px; background: var(--border);
}
.section-title {
  font-family: var(--serif);
  font-size: clamp(28px, 3.5vw, 48px);
  font-weight: 400; color: var(--ink); line-height: 1.1;
  margin-bottom: 56px;
}

/* ── 商品グリッド ── */
.products-section { background: var(--white); }
.products-section .section-inner {
  max-width: 1280px; margin: 0 auto; padding: 100px 48px;
}
.products-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2px;
}
.product-card {
  background: var(--bg); overflow: hidden;
  cursor: pointer; text-decoration: none; color: inherit;
  display: block;
  transition: box-shadow .3s var(--ease);
}
.product-card:hover { box-shadow: 0 12px 48px rgba(0,0,0,.09); z-index: 1; position: relative; }
.product-card.sold-out { opacity: .55; pointer-events: none; }
.product-img {
  aspect-ratio: 3/4; overflow: hidden; position: relative;
  background: var(--warm2);
}
.product-img img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform .6s var(--ease);
}
.product-card:hover .product-img img { transform: scale(1.04); }
.soldout-overlay {
  position: absolute; inset: 0;
  display: flex; align-items: center; justify-content: center;
  background: rgba(250,249,247,.7);
  font-size: 10px; letter-spacing: .45em; text-transform: uppercase;
  color: var(--ink3);
}
.product-body { padding: 24px 24px 32px; }
.product-code { font-size: 9.5px; letter-spacing: .4em; color: var(--dust); text-transform: uppercase; }
.product-name {
  font-family: var(--serif); font-size: 20px; margin: 6px 0 4px;
  line-height: 1.2;
}
.product-size { font-size: 12px; color: var(--dust); margin-bottom: 10px; }
.product-desc { font-size: 13px; color: var(--ink3); line-height: 1.9; margin-bottom: 20px; }
.product-foot {
  display: flex; align-items: center; justify-content: space-between;
  border-top: 1px solid var(--border); padding-top: 18px; margin-top: auto;
}
.product-price {
  font-family: var(--serif); font-size: 22px; color: var(--ink);
}
.product-price small { font-family: var(--sans); font-size: 11px; color: var(--dust); }
.btn-buy {
  display: inline-block; padding: 9px 20px;
  background: var(--ink); color: var(--white);
  font-size: 10px; letter-spacing: .2em; text-transform: uppercase;
  text-decoration: none;
  transition: background .22s;
}
.btn-buy:hover { background: var(--ink2); }
.btn-soldout {
  font-size: 10px; letter-spacing: .25em; text-transform: uppercase;
  color: var(--dust);
}
.product-thumbs {
  display: flex; gap: 6px; padding: 0 24px 20px;
}
.thumb-mini {
  width: 52px; height: 52px; object-fit: cover;
  cursor: pointer; border: 1.5px solid transparent;
  transition: border-color .2s;
}
.thumb-mini:hover, .thumb-mini.active { border-color: var(--ink); }

/* ── ノーオンセール バナー ── */
.presale-banner {
  background: var(--ink); color: var(--white);
  text-align: center; padding: 20px;
  font-size: 12px; letter-spacing: .25em; text-transform: uppercase;
}

/* ── 購入の流れ ── */
.flow-section { background: var(--warm2); }
.flow-section .section-inner {
  max-width: 1280px; margin: 0 auto; padding: 100px 48px;
}
.flow-steps {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 40px; position: relative;
}
.flow-steps::before {
  content: ''; position: absolute;
  top: 20px; left: 10%; right: 10%; height: 1px;
  background: var(--border);
}
.flow-step { text-align: center; position: relative; }
.step-num {
  display: inline-block;
  width: 40px; height: 40px; line-height: 40px;
  background: var(--white); border: 1px solid var(--border);
  border-radius: 50%; font-family: var(--serif); font-size: 16px;
  color: var(--ink); margin-bottom: 20px; position: relative; z-index: 1;
}
.flow-step h4 { font-size: 13px; font-weight: 500; margin-bottom: 8px; letter-spacing: .04em; }
.flow-step p { font-size: 12.5px; color: var(--ink3); line-height: 1.85; }
.flow-note {
  text-align: center; margin-top: 48px;
  font-size: 12px; color: var(--ink3);
  padding: 16px 24px; background: var(--white);
  border-left: 2px solid var(--warm); display: inline-block;
}

/* ── フォーム ── */
.page-wrap {
  min-height: 100svh; display: flex; align-items: center; justify-content: center;
  padding: 96px 20px 60px;
}
.form-card {
  width: 100%; max-width: 520px;
  background: var(--white);
  border: 1px solid var(--border);
  padding: 56px 52px;
}
.form-title {
  font-family: var(--serif); font-size: 30px;
  font-weight: 400; margin-bottom: 4px;
}
.form-sub { font-size: 12px; color: var(--dust); margin-bottom: 40px; }
.fg { margin-bottom: 22px; }
.fg label {
  display: block; font-size: 9.5px; letter-spacing: .35em;
  text-transform: uppercase; color: var(--dust); margin-bottom: 6px;
}
.fg input, .fg select, .fg textarea {
  width: 100%; padding: 11px 14px;
  border: 1px solid var(--border); background: var(--bg);
  color: var(--ink); font-family: var(--sans); font-size: 14px;
  font-weight: 300; outline: none;
  transition: border-color .2s; border-radius: var(--radius);
}
.fg input:focus, .fg select:focus { border-color: var(--ink); background: var(--white); }
.fg input::placeholder { color: var(--dust); }
.fg-row { display: flex; gap: 14px; }
.fg-row .fg { flex: 1; }
.btn-submit {
  width: 100%; padding: 15px;
  background: var(--ink); color: var(--white);
  border: none; cursor: pointer;
  font-family: var(--sans); font-size: 11px; letter-spacing: .3em; text-transform: uppercase;
  transition: background .22s; margin-top: 8px;
}
.btn-submit:hover { background: var(--ink2); }
.btn-submit:disabled { background: #ccc; cursor: not-allowed; }
.form-link { text-align: center; margin-top: 20px; font-size: 12.5px; color: var(--dust); }
.form-link a { color: var(--ink); text-decoration: underline; text-underline-offset: 2px; }

/* ── アラート ── */
.alert {
  padding: 13px 16px; margin-bottom: 22px;
  font-size: 13px; border-left: 3px solid;
  border-radius: var(--radius);
}
.alert-error   { background: #fff2f2; border-color: #d33; color: #c00; }
.alert-success { background: #f2fff6; border-color: #2a8; color: #196; }
.alert-info    { background: #f4f6ff; border-color: #57a; color: #346; }

/* ── マイページ ── */
.mypage-wrap { max-width: 760px; margin: 0 auto; padding: 100px 40px 80px; }
.mypage-hero {
  border-bottom: 1px solid var(--border); padding-bottom: 36px; margin-bottom: 48px;
}
.mypage-receipt-label {
  font-size: 9px; letter-spacing: .5em; text-transform: uppercase;
  color: var(--dust); margin-bottom: 10px;
}
.mypage-receipt-no {
  font-family: var(--serif); font-size: 40px; color: var(--ink);
  letter-spacing: .04em; line-height: 1;
}
.mypage-name { font-size: 15px; color: var(--ink3); margin-top: 6px; }
.qr-block { margin-bottom: 48px; }
.qr-block-label {
  font-size: 9px; letter-spacing: .5em; text-transform: uppercase;
  color: var(--dust); margin-bottom: 20px;
}
.qr-inner {
  display: flex; gap: 48px; align-items: flex-start; flex-wrap: wrap;
}
.qr-canvas-wrap {
  background: var(--white); border: 1px solid var(--border);
  padding: 16px; display: inline-block;
  box-shadow: 0 4px 24px rgba(0,0,0,.06);
}
.qr-note { font-size: 11px; color: var(--dust); margin-top: 8px; text-align: center; }
.info-table { flex: 1; min-width: 220px; }
.info-table tr td {
  padding: 12px 0; border-bottom: 1px solid var(--border);
  font-size: 13.5px;
}
.info-table tr td:first-child {
  color: var(--dust); font-size: 10px; letter-spacing: .2em;
  text-transform: uppercase; width: 120px;
}
.status-badge {
  display: inline-block; padding: 3px 14px;
  font-size: 10px; letter-spacing: .2em; text-transform: uppercase;
  border-radius: 20px;
}
.s-authorized { background: #fff8e6; color: #a06010; border: 1px solid #e8c96a; }
.s-captured   { background: #edfaf3; color: #196840; border: 1px solid #7dd4a4; }
.s-cancelled  { background: #fff2f2; color: #a02020; border: 1px solid #f0a0a0; }
.cancel-note {
  margin-top: 32px; padding: 20px 24px;
  background: #f9f8f6; border: 1px solid var(--border);
  font-size: 12.5px; color: var(--ink3); line-height: 2.1;
}
.cancel-note a { color: var(--ink); }

/* ── 管理画面 ── */
.admin-wrap { display: flex; min-height: 100svh; }
.admin-sidebar {
  width: 220px; background: var(--ink); flex-shrink: 0;
  display: flex; flex-direction: column;
}
.sidebar-brand {
  padding: 28px 24px; border-bottom: 1px solid rgba(255,255,255,.08);
  font-size: 9.5px; letter-spacing: .4em; text-transform: uppercase;
  color: rgba(255,255,255,.45);
}
.sidebar-brand strong { display: block; color: rgba(255,255,255,.85); font-size: 13px; letter-spacing: .06em; font-family: var(--serif); font-weight: 400; margin-top: 2px; }
.sidebar-nav { flex: 1; padding: 20px 0; }
.sidebar-nav a {
  display: flex; align-items: center; gap: 10px;
  padding: 11px 24px;
  font-size: 12px; letter-spacing: .06em;
  color: rgba(255,255,255,.5); text-decoration: none;
  border-left: 2px solid transparent;
  transition: all .2s;
}
.sidebar-nav a:hover, .sidebar-nav a.on {
  color: rgba(255,255,255,.9);
  border-left-color: var(--warm);
  background: rgba(255,255,255,.04);
}
.sidebar-nav .nav-section {
  font-size: 8.5px; letter-spacing: .45em; text-transform: uppercase;
  color: rgba(255,255,255,.25); padding: 20px 24px 6px;
}
.admin-body { flex: 1; display: flex; flex-direction: column; overflow: hidden; }
.admin-topbar {
  height: 56px; background: var(--white); border-bottom: 1px solid var(--border);
  display: flex; align-items: center; padding: 0 36px;
  justify-content: space-between;
}
.admin-topbar h1 { font-family: var(--serif); font-size: 20px; font-weight: 400; }
.admin-content { flex: 1; padding: 36px; overflow-y: auto; background: var(--bg); }
.admin-section-title {
  font-family: var(--serif); font-size: 18px; font-weight: 400;
  margin-bottom: 20px; padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
}
.stats-row {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 16px; margin-bottom: 36px;
}
.stat-box {
  background: var(--white); border: 1px solid var(--border); padding: 20px 22px;
}
.stat-box .sl { font-size: 9px; letter-spacing: .35em; text-transform: uppercase; color: var(--dust); margin-bottom: 6px; }
.stat-box .sv { font-family: var(--serif); font-size: 30px; color: var(--ink); line-height: 1; }
.stat-box .sd { font-size: 11px; color: var(--dust); margin-top: 4px; }
.data-table { width: 100%; border-collapse: collapse; background: var(--white); }
.data-table th {
  text-align: left; padding: 11px 14px;
  font-size: 9px; letter-spacing: .3em; text-transform: uppercase;
  color: var(--dust); border-bottom: 2px solid var(--border);
  white-space: nowrap;
}
.data-table td {
  padding: 13px 14px; font-size: 13px;
  border-bottom: 1px solid var(--border); color: var(--ink2);
}
.data-table tr:last-child td { border-bottom: none; }
.data-table tr:hover td { background: #faf9f7; }
.btn-sm {
  display: inline-block; padding: 5px 14px; cursor: pointer;
  font-size: 10px; letter-spacing: .15em; text-transform: uppercase;
  border: none; font-family: var(--sans); border-radius: var(--radius);
  text-decoration: none; transition: all .2s;
}
.btn-dark { background: var(--ink); color: var(--white); }
.btn-dark:hover { background: var(--ink2); }
.btn-danger { background: #c00; color: var(--white); }
.btn-danger:hover { background: #a00; }
.btn-outline-sm {
  background: transparent; border: 1px solid var(--border);
  color: var(--ink3); padding: 5px 14px; cursor: pointer;
  font-size: 10px; letter-spacing: .15em; text-transform: uppercase;
  font-family: var(--sans);
}
.btn-outline-sm:hover { border-color: var(--ink); color: var(--ink); }
.mode-badge {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 4px 12px; font-size: 10px; letter-spacing: .15em; text-transform: uppercase;
  border-radius: 12px; border: 1px solid;
}
.mode-immediate { background: #fff8e6; color: #a06010; border-color: #e8c96a; }
.mode-deferred  { background: #edfaf3; color: #196840; border-color: #7dd4a4; }

/* ── フッター ── */
.site-footer {
  background: var(--ink); color: rgba(255,255,255,.4);
  text-align: center; padding: 40px;
  font-size: 11px; letter-spacing: .1em;
}
.site-footer strong { color: rgba(255,255,255,.7); font-family: var(--serif); font-size: 14px; font-weight: 400; display: block; margin-bottom: 8px; }

/* ── プログレスバー ── */
.progress-bar {
  background: var(--border); height: 4px; border-radius: 2px; overflow: hidden; width: 100px;
}
.progress-bar-fill { height: 100%; background: var(--ink); border-radius: 2px; transition: width .4s; }

/* ── アニメーション ── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}
.fade-up { animation: fadeUp .7s var(--ease) both; }
.fade-up-d1 { animation-delay: .1s; }
.fade-up-d2 { animation-delay: .2s; }
.fade-up-d3 { animation-delay: .35s; }

/* ── レスポンシブ ── */
@media (max-width: 1024px) {
  .hero { grid-template-columns: 1fr; }
  .hero-right { min-height: 50vw; }
  .products-grid { grid-template-columns: repeat(2, 1fr); }
  .flow-steps { grid-template-columns: repeat(2, 1fr); }
  .flow-steps::before { display: none; }
}
@media (max-width: 640px) {
  .header-inner { padding: 0 20px; }
  .hero-left { padding: 48px 20px; }
  .products-grid { grid-template-columns: 1fr; }
  .flow-steps { grid-template-columns: 1fr; }
  .form-card { padding: 36px 24px; }
  .fg-row { flex-direction: column; gap: 0; }
  .products-section .section-inner { padding: 60px 20px; }
  .section { padding: 60px 20px; }
  .admin-sidebar { display: none; }
}