:root {
  --color-black: #1A1A1A;
  --color-gold: #C7A864;
  --color-ivory: #F7F2E7;
  --color-text-sub: #6b6b68;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: 'Hiragino Kaku Gothic ProN', 'Yu Gothic', sans-serif;
  background: var(--color-ivory);
  color: var(--color-black);
}

.site-header {
  background: var(--color-black);
  padding: 20px 24px;
}
.site-header__inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  align-items: baseline;
  gap: 16px;
}
.site-header__title {
  color: var(--color-gold);
  font-size: 22px;
  font-weight: 700;
  letter-spacing: 0.05em;
}
.site-header__company {
  color: #cfcfcf;
  font-size: 13px;
}

.app {
  max-width: 1100px;
  margin: 0 auto;
  padding: 32px 24px 64px;
  min-height: 60vh;
}

.site-footer {
  text-align: center;
  color: var(--color-text-sub);
  font-size: 12px;
  padding: 24px;
}

/* 絞り込み */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 24px;
}
.filter-bar select, .filter-bar input {
  padding: 8px 12px;
  border: 1px solid #ddd;
  border-radius: 20px;
  font-size: 13px;
  background: #fff;
}

/* 商品グリッド */
.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 20px;
}

.product-card {
  background: #fff;
  border-radius: 10px;
  overflow: hidden;
  cursor: pointer;
  text-decoration: none;
  color: inherit;
  box-shadow: 0 1px 3px rgba(0,0,0,0.08);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
  display: block;
}
.product-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 6px 16px rgba(0,0,0,0.12);
}
.product-card__image-wrap {
  aspect-ratio: 1 / 1;
  background: var(--color-black);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.product-card__image-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.product-card__noimage {
  color: var(--color-gold);
  font-size: 12px;
}
.product-card__body {
  padding: 12px 14px;
}
.product-card__category {
  display: inline-block;
  font-size: 10px;
  color: var(--color-gold);
  background: var(--color-black);
  padding: 2px 8px;
  border-radius: 10px;
  margin-bottom: 6px;
}
.product-card__name {
  font-size: 14px;
  font-weight: 600;
  line-height: 1.4;
}

.empty-note, .loading-note, .error-note {
  text-align: center;
  color: var(--color-text-sub);
  padding: 60px 0;
}

/* 詳細ページ */
.detail-back {
  display: inline-block;
  margin-bottom: 20px;
  color: var(--color-black);
  text-decoration: none;
  font-size: 13px;
  border-bottom: 1px solid var(--color-gold);
}

.detail-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 36px;
}
@media (max-width: 760px) {
  .detail-layout { grid-template-columns: 1fr; }
}

.detail-gallery__main {
  aspect-ratio: 1 / 1;
  background: var(--color-black);
  border-radius: 10px;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 10px;
}
.detail-gallery__main img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.detail-gallery__thumbs {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.detail-gallery__thumbs img {
  width: 64px;
  height: 64px;
  object-fit: cover;
  border-radius: 6px;
  cursor: pointer;
  border: 2px solid transparent;
  opacity: 0.7;
}
.detail-gallery__thumbs img.active {
  border-color: var(--color-gold);
  opacity: 1;
}

.detail-category {
  display: inline-block;
  font-size: 11px;
  color: var(--color-gold);
  background: var(--color-black);
  padding: 3px 10px;
  border-radius: 12px;
  margin-bottom: 10px;
}
.detail-name {
  font-size: 26px;
  font-weight: 700;
  font-family: 'Hiragino Mincho ProN', serif;
  margin: 0 0 16px;
  line-height: 1.4;
}
.detail-description {
  white-space: pre-line;
  line-height: 1.8;
  margin-bottom: 24px;
  color: #333;
}
.detail-specs {
  border-top: 1px solid #ddd;
}
.detail-specs__row {
  display: flex;
  padding: 10px 0;
  border-bottom: 1px solid #eee;
  font-size: 14px;
}
.detail-specs__label {
  width: 120px;
  color: var(--color-gold);
  font-weight: 600;
  flex-shrink: 0;
}