/*
 * TCDA — Art Background Layer
 * body.page-art が付いたページにのみ適用。
 */

/* ── 1. Body reset ─────────────────────────────────────────────── */
body.page-art {
  background: #0c0b0a; /* フォールバック：画像未ロード時も黒背景 */
}

/* ── 2. Art background — iOS Safari 対応: filter を fixed 要素に
        直接適用すると新 stacking context が生まれページが隠れる。
        ::before に移動して回避。 ──────────────────────────────── */
.art-bg {
  position: fixed;
  inset: 0;
  z-index: -3;
  pointer-events: none;
  overflow: hidden;     /* ::before の inset:-6% をクリップ */
}
.art-bg::before {
  content: '';
  position: absolute;
  inset: -6%;           /* blur端のアーティファクト消去 */
  background-image: url('../images/作品/artifact-03-main.webp');
  background-size: cover;
  background-position: center center;
  filter: blur(52px) brightness(0.55) saturate(1.22);
}

/* ── 3. Vignette ───────────────────────────────────────────────── */
.art-vignette {
  position: fixed;
  inset: 0;
  z-index: -2;
  pointer-events: none;
  background: radial-gradient(
    ellipse 70% 60% at 50% 46%,
    rgba(0,0,0,0)    0%,
    rgba(0,0,0,0.28) 55%,
    rgba(0,0,0,0.62) 100%
  );
}

/* ── 4. Header ─────────────────────────────────────────────────── */
body.page-art .site-header {
  z-index: 100;
  background: rgba(12,11,10,0.52);
  border-bottom-color: rgba(255,255,255,0.09);
}
body.page-art .site-header.is-scrolled {
  background: rgba(12,11,10,0.78);
  border-bottom-color: rgba(255,255,255,0.14);
}

/* ── 5. ハンバーガー三本線 — var(--ink)=黒は暗背景で不可視
        gradient の色を白に上書き ─────────────────────────────── */
body.page-art .nav-toggle {
  border-color: rgba(255,255,255,0.25);
  background-image: repeating-linear-gradient(
    to bottom,
    rgba(240,237,232,0.9) 0,
    rgba(240,237,232,0.9) 1.5px,
    transparent 1.5px,
    transparent 8px
  );
}
body.page-art .nav-toggle:hover {
  border-color: rgba(255,255,255,0.6);
}

/* ── 6. Nav links ──────────────────────────────────────────────── */
body.page-art .nav-links {
  z-index: 200; /* カード(z:1)より確実に上 */
  background: rgba(18,16,14,0.95);
  border-color: rgba(255,255,255,0.12);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}
body.page-art .nav-links a {
  color: rgba(220,212,200,0.8);
}
body.page-art .nav-links a[aria-current="page"],
body.page-art .nav-links a:hover {
  color: #fff;
}
body.page-art .brand {
  color: rgba(240,237,232,0.9);
}
body.page-art .cart-pill {
  color: rgba(240,237,232,0.7);
  border-color: rgba(255,255,255,0.18);
}
body.page-art .cart-pill:hover {
  color: #fff;
  border-color: rgba(255,255,255,0.55);
}
body.page-art .locale-toggle {
  color: rgba(240,237,232,0.7);
  border-color: rgba(255,255,255,0.18);
}

/* ── 7. テキスト — art 背景直上は白系、白パネル内は黒に戻す ─── */
body.page-art .hero .eyebrow {
  color: rgba(200,190,180,0.7);
}
body.page-art .hero h1 {
  color: #f0ede8;
  text-shadow: 0 2px 24px rgba(0,0,0,0.5);
}
body.page-art .hero .lead {
  color: rgba(230,222,212,0.78);
  text-shadow: 0 1px 12px rgba(0,0,0,0.4);
}
/* section テキスト（art背景上） */
body.page-art .section > .container > *:not(.panel):not(.card) h2,
body.page-art .section > .container > *:not(.panel):not(.card) h3,
body.page-art .section-head .flow h2 {
  color: #f0ede8;
  text-shadow: 0 1px 12px rgba(0,0,0,0.4);
}
body.page-art .eyebrow {
  color: rgba(200,190,180,0.65);
}
/* 白背景パネル内はカラー維持 */
body.page-art .panel,
body.page-art .panel h2,
body.page-art .panel h3,
body.page-art .panel p {
  color: var(--ink);
}
body.page-art .panel p {
  color: var(--muted);
}

/* ── 8. サイドバー ─────────────────────────────────────────────── */
body.page-art .shop-sidebar {
  background: rgba(14,13,11,0.72);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-color: rgba(255,255,255,0.1);
  color: rgba(230,222,210,0.9);
}
body.page-art .filter-toggle,
body.page-art .filter-checkbox span {
  color: rgba(220,212,200,0.8);
}
body.page-art .filter-toggle:hover,
body.page-art .filter-checkbox input:checked ~ span {
  color: #fff;
}
body.page-art .filter-group {
  border-bottom-color: rgba(255,255,255,0.08);
}
body.page-art .filter-reset {
  border-color: rgba(255,255,255,0.18);
  color: rgba(220,212,200,0.7);
}
body.page-art .filter-reset:hover {
  background: rgba(255,255,255,0.9);
  color: #0a0a0a;
  border-color: transparent;
}

/* ── 9. コントロール ───────────────────────────────────────────── */
body.page-art .search-input,
body.page-art .sort-select {
  background: rgba(14,13,11,0.55);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-color: rgba(255,255,255,0.18);
  color: #f0ede8;
}
body.page-art .search-input::placeholder {
  color: rgba(200,190,180,0.5);
}
body.page-art .search-input:focus,
body.page-art .sort-select:focus,
body.page-art .sort-select:hover {
  border-color: rgba(255,255,255,0.5);
  outline: none;
}
body.page-art .mobile-filter-toggle {
  background: rgba(14,13,11,0.55);
  border: 1px solid rgba(255,255,255,0.18);
  color: rgba(230,222,210,0.9);
  padding: 0.9rem 1.2rem;
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  cursor: pointer;
}

/* ── 10. 商品カード — 白背景・浮かせる ─────────────────────────── */
body.page-art .card {
  background: #fff;
  border-radius: 4px;
  overflow: hidden;
  position: relative;
  z-index: 1;
  box-shadow:
    0 4px 12px rgba(0,0,0,0.25),
    0 16px 48px rgba(0,0,0,0.35),
    0 0 0 1px rgba(255,255,255,0.06);
  transition:
    transform 260ms cubic-bezier(0.16,1,0.3,1),
    box-shadow 260ms cubic-bezier(0.16,1,0.3,1);
}
body.page-art .card:hover {
  transform: translateY(-4px) scale(1.012);
  box-shadow:
    0 8px 20px rgba(0,0,0,0.3),
    0 28px 64px rgba(0,0,0,0.45),
    0 0 0 1px rgba(255,255,255,0.1);
}
body.page-art .card .card-body h3,
body.page-art .card .card-body .price {
  color: #0a0a0a;
}
body.page-art .card .card-body .meta {
  color: #5c5c5c;
}
body.page-art .card .card-body p {
  color: #5c5c5c;
}
body.page-art .card .card-buy .card-quick-add {
  background: #0a0a0a;
  color: #fff;
  width: 100%;
  border-radius: 0;
  padding: 0.7rem 1rem;
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  border: none;
  cursor: pointer;
  transition: opacity 180ms;
}
body.page-art .card .card-buy .card-quick-add:hover {
  opacity: 0.78;
}

/* ── 11. Loading ───────────────────────────────────────────────── */
body.page-art #shop-loading {
  color: rgba(220,212,200,0.5);
}

/* ── 12. Locale panel ──────────────────────────────────────────── */
body.page-art .locale-panel {
  background: rgba(18,16,14,0.96);
  border: 1px solid rgba(255,255,255,0.12);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
}
body.page-art .locale-btn {
  color: rgba(220,212,200,0.8);
  border: 1px solid rgba(255,255,255,0.14);
}
body.page-art .locale-btn:hover,
body.page-art .locale-btn[aria-pressed="true"] {
  background: rgba(255,255,255,0.9);
  color: #0a0a0a;
  border-color: transparent;
}
body.page-art .locale-group-label {
  color: rgba(180,172,160,0.7);
}
body.page-art .currency-select {
  background: rgba(255,255,255,0.08);
  color: rgba(230,222,210,0.9);
  border-color: rgba(255,255,255,0.14);
}

/* ── 13. Footer ────────────────────────────────────────────────── */
body.page-art .site-footer {
  background: rgba(10,9,8,0.75);
  border-top: 1px solid rgba(255,255,255,0.08);
  color: rgba(180,172,160,0.6);
}
body.page-art .site-footer a {
  color: rgba(200,192,180,0.7);
}
body.page-art .site-footer a:hover {
  color: #fff;
}

/* ── 14. ボタン ────────────────────────────────────────────────── */
body.page-art .btn {
  background: rgba(240,237,232,0.95);
  border-color: rgba(240,237,232,0.95);
  color: #0a0a0a;
}
body.page-art .btn:hover {
  background: #fff;
  opacity: 1;
}
body.page-art .btn-ghost {
  color: rgba(240,237,232,0.85);
  border-color: rgba(240,237,232,0.35);
}
body.page-art .btn-ghost:hover {
  background: rgba(240,237,232,0.9);
  color: #0a0a0a;
  border-color: transparent;
}

/* ── 15. モバイル ──────────────────────────────────────────────── */
@media (max-width: 768px) {
  .art-bg::before {
    filter: blur(36px) brightness(0.55) saturate(1.18);
  }
  /* nav-links がカードの上に出るよう保証 */
  body.page-art .nav-links {
    z-index: 200;
  }
}