/* ===================================
   Shop Page Styles
=================================== */

/* ナビゲーション（ショップ用） */
.shop-nav {
    background: rgba(255, 255, 255, 0.98);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.05);
}

.shop-nav .nav-logo {
    color: #2a2218;
}

.shop-nav .nav-links a {
    color: #2a2218;
}

.shop-nav .nav-links a.active {
    color: var(--color-accent);
}

.shop-nav .nav-toggle-line {
    background: #2a2218;
}

/* ショップヘッダー */
.shop-header {
    padding: 160px 0 80px;
    background: linear-gradient(135deg, #faf8f5 0%, #f5f0e8 100%);
    text-align: center;
}

.shop-title {
    margin-bottom: 20px;
}

.shop-title .title-en {
    display: block;
    font-family: var(--font-display);
    font-size: 0.85rem;
    color: var(--color-accent-dark);
    letter-spacing: 0.4em;
    text-transform: uppercase;
    margin-bottom: 15px;
}

.shop-title .title-ja {
    display: block;
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 400;
    color: #2a2218;
    letter-spacing: 0.2em;
}

.shop-desc {
    font-size: 1rem;
    color: #6d635a;
    letter-spacing: 0.1em;
}

/* カテゴリーフィルター */
.shop-filter {
    padding: 40px 0;
    background: #ffffff;
    border-bottom: 1px solid rgba(201, 167, 108, 0.15);
    position: sticky;
    top: 70px;
    z-index: 100;
}

.filter-buttons {
    display: flex;
    justify-content: center;
    gap: 15px;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 10px 25px;
    font-family: var(--font-serif);
    font-size: 0.85rem;
    color: #6d635a;
    background: transparent;
    border: 1px solid #ddd;
    border-radius: 30px;
    cursor: pointer;
    letter-spacing: 0.1em;
    transition: all 0.3s var(--transition-smooth);
}

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

.filter-btn.active {
    background: var(--color-accent);
    border-color: var(--color-accent);
    color: #ffffff;
}

/* 商品一覧 */
.shop-products {
    padding: 60px 0 100px;
    background: #ffffff;
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 40px;
}

/* 商品カード */
.product-card {
    background: #ffffff;
    border: 1px solid rgba(201, 167, 108, 0.15);
    border-radius: 8px;
    overflow: hidden;
    transition: all 0.4s var(--transition-smooth);
}

.product-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.08);
    border-color: var(--color-accent);
}

.product-card.hidden {
    display: none;
}

.product-image {
    position: relative;
    height: 280px;
    overflow: hidden;
}

.product-photo {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    transition: transform 0.6s var(--transition-smooth);
    display: block;
}

.product-photo[src=""] {
    display: none;
}

.product-card:hover .product-photo {
    transform: scale(1.05);
}

.product-placeholder {
    width: 100%;
    height: 100%;
    transition: transform 0.6s var(--transition-smooth);
    display: none;
}

.product-image:has(.product-photo[src=""]) .product-placeholder {
    display: block;
}

.product-card:hover .product-placeholder {
    transform: scale(1.05);
}

/* 商品画像プレースホルダー */
.product-placeholder.fragrance-set {
    background: linear-gradient(145deg, #f5e6d3 0%, #e8d4be 100%);
}
.product-placeholder.fragrance-single {
    background: linear-gradient(145deg, #e8ddd0 0%, #d5c8b8 100%);
}

.product-placeholder.china-cardigan {
    background: linear-gradient(145deg, #1a1a1a 0%, #2d2d2d 100%);
}
.product-placeholder.back-sweat {
    background: linear-gradient(145deg, #2a2a2a 0%, #3a3a3a 100%);
}
.product-placeholder.hoodie {
    background: linear-gradient(145deg, #1f1f1f 0%, #333333 100%);
}
.product-placeholder.sweat-embroidery {
    background: linear-gradient(145deg, #252525 0%, #383838 100%);
}
.product-placeholder.back-tee {
    background: linear-gradient(145deg, #1a1a1a 0%, #2a2a2a 100%);
}
.product-placeholder.collab-tee {
    background: linear-gradient(145deg, #222222 0%, #333333 100%);
}
.product-placeholder.basic-tee {
    background: linear-gradient(145deg, #1e1e1e 0%, #2e2e2e 100%);
}

.product-placeholder.pouch {
    background: linear-gradient(145deg, #2a2a2a 0%, #1a1a1a 100%);
}

.product-tag {
    position: absolute;
    top: 15px;
    left: 15px;
    padding: 6px 14px;
    background: var(--color-accent);
    color: #ffffff;
    font-size: 0.7rem;
    font-weight: 500;
    letter-spacing: 0.1em;
    border-radius: 3px;
}

.product-info {
    padding: 25px;
}

.product-category {
    display: inline-block;
    font-size: 0.7rem;
    color: var(--color-accent-dark);
    letter-spacing: 0.15em;
    margin-bottom: 10px;
    text-transform: uppercase;
}

.product-name {
    font-size: 1.1rem;
    font-weight: 400;
    color: #2a2218;
    margin-bottom: 8px;
    letter-spacing: 0.05em;
}

.product-desc {
    font-size: 0.85rem;
    color: #8a8078;
    line-height: 1.6;
    margin-bottom: 20px;
}

.product-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.product-price {
    font-family: var(--font-display);
    font-size: 1.25rem;
    color: #2a2218;
    letter-spacing: 0.05em;
}

.btn-buy {
    padding: 10px 20px;
    font-family: var(--font-serif);
    font-size: 0.8rem;
    color: var(--color-accent);
    text-decoration: none;
    border: 1px solid var(--color-accent);
    border-radius: 4px;
    letter-spacing: 0.1em;
    transition: all 0.3s var(--transition-smooth);
}

.btn-buy:hover {
    background: var(--color-accent);
    color: #ffffff;
}

.btn-soldout {
    padding: 10px 20px;
    font-family: var(--font-serif);
    font-size: 0.8rem;
    color: #999;
    background: #eee;
    border-radius: 4px;
    letter-spacing: 0.1em;
}

.product-tag.sold-out {
    background: #666;
}

/* BASE誘導セクション */
.shop-cta {
    padding: 80px 0;
    background: linear-gradient(135deg, #2a2218 0%, #1a1612 100%);
}

.cta-content {
    text-align: center;
}

.cta-text {
    font-size: 1rem;
    color: #a89f93;
    letter-spacing: 0.1em;
    margin-bottom: 30px;
}

.btn-base {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 18px 45px;
    font-family: var(--font-serif);
    font-size: 0.95rem;
    color: #2a2218;
    background: var(--color-accent);
    text-decoration: none;
    border-radius: 4px;
    letter-spacing: 0.15em;
    transition: all 0.3s var(--transition-smooth);
}

.btn-base:hover {
    background: var(--color-accent-light);
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(201, 167, 108, 0.4);
}

.btn-base svg {
    transition: transform 0.3s var(--transition-smooth);
}

.btn-base:hover svg {
    transform: translate(3px, -3px);
}

/* フッターリンク */
.footer-links {
    display: flex;
    justify-content: center;
    gap: 30px;
    margin-bottom: 25px;
}

.footer-links a {
    color: var(--color-text-secondary);
    text-decoration: none;
    font-size: 0.85rem;
    letter-spacing: 0.1em;
    transition: color 0.3s var(--transition-smooth);
}

.footer-links a:hover {
    color: var(--color-accent);
}

/* レスポンシブ */
@media (max-width: 768px) {
    .shop-header {
        padding: 140px 0 60px;
    }
    
    .filter-buttons {
        gap: 10px;
    }
    
    .filter-btn {
        padding: 8px 18px;
        font-size: 0.8rem;
    }
    
    .products-grid {
        grid-template-columns: 1fr;
        gap: 25px;
    }
    
    .product-image {
        height: 250px;
    }
}