/* -------------------------------------------------------------------------
       DESIGN SYSTEM & VARIABLES (トンマナの厳密な定義)
    ------------------------------------------------------------------------- */

    /* 基本リセット & 共通スタイル */

            button, select { background: none; border: none; font: inherit; cursor: pointer; }

    /* スクロール時のフェードインアニメーション用クラス */

    /* -------------------------------------------------------------------------
       【セクション1：グローバルナビゲーション】
    ------------------------------------------------------------------------- */

    /* -------------------------------------------------------------------------
       【セクション2：ファーストビュー（メインビジュアル）】
    ------------------------------------------------------------------------- */
    .hero-section {
      height: auto;
      min-height: 280px;
      display: flex;
      align-items: center;
      position: relative;
      padding: 3.5rem 4rem;
      overflow: hidden;
    }
    /* 背景画像（香炉・自然光の和モダン。左にコピー余白） */
    .hero-bg {
      position: absolute;
      inset: 0;
      width: 100%;
      height: 100%;
      background:
        linear-gradient(to right, var(--bg-base) 0%, rgba(248, 245, 240, 0.55) 18%, transparent 42%),
        url('/assets/images/hero.jpg') right center / cover no-repeat;
      z-index: 1;
    }
    .hero-content {
      position: relative;
      z-index: 2;
      width: 100%;
      max-width: none;
      display: flex;
      align-items: center;
      justify-content: flex-start;
      gap: 2rem;
    }
    .h1-hidden {
      position: absolute;
      width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); border: 0;
    }
    .hero-title {
      font-family: var(--font-calligraphy);
      font-size: 2.4rem;
      font-weight: 400;
      color: var(--text-dark);
      margin: 0;
      margin-left: clamp(0.5rem, 2vw, 1.5rem);
      flex-shrink: 0;
      display: flex;
      flex-direction: row-reverse; /* 右から: 香りで → 心ほどける → 毎日を */
      align-items: flex-start;
      gap: 0.65em;
    }
    .hero-title-line {
      writing-mode: vertical-rl;
      text-orientation: mixed;
      letter-spacing: 0.18em;
      line-height: 1.35;
    }

    /* -------------------------------------------------------------------------
       【セクション3〜4：カテゴリサイド + 商品一覧】
    ------------------------------------------------------------------------- */
    .shop-layout {
      display: grid;
      grid-template-columns: 220px 1fr;
      gap: 2.5rem;
      align-items: start;
    }

    .category-sidebar {
      position: sticky;
      top: 100px;
    }
    .category-sidebar-heading {
      font-family: var(--font-display);
      font-size: 0.85rem;
      font-weight: 600;
      color: var(--text-dark);
      letter-spacing: 0.1em;
      margin-bottom: 1rem;
      padding-bottom: 0.75rem;
      border-bottom: 1px solid rgba(138, 106, 74, 0.15);
    }
    .category-nav {
      display: flex;
      flex-direction: column;
      gap: 0.25rem;
    }
    .category-nav-item {
      display: flex;
      flex-direction: column;
      gap: 0.15rem;
      padding: 0.75rem 0.85rem;
      color: inherit;
      text-decoration: none;
      border-left: 2px solid transparent;
      transition: background-color 0.25s, border-color 0.25s;
    }
    .category-nav-item:hover {
      background-color: rgba(255, 255, 255, 0.7);
      border-left-color: var(--color-main);
    }
    .category-nav-item .category-name-ja {
      font-family: var(--font-display);
      font-size: 0.95rem;
      font-weight: 600;
      color: var(--text-dark);
    }
    .category-nav-item .category-name-en {
      font-family: var(--font-en);
      font-size: 0.7rem;
      color: var(--color-sub);
      letter-spacing: 0.08em;
    }

    .product-section { background-color: rgba(255, 255, 255, 0.4); border-top: 1px solid rgba(138, 106, 74, 0.05); border-bottom: 1px solid rgba(138, 106, 74, 0.05); }

    .filter-controls {
      display: flex;
      justify-content: flex-end;
      align-items: center;
      margin-bottom: 2rem;
      padding-bottom: 1.25rem;
      border-bottom: 1px solid rgba(138, 106, 74, 0.1);
    }

    .sort-select-wrapper select {
      padding: 0.5rem 2.5rem 0.5rem 1rem;
      border: 1px solid rgba(138, 106, 74, 0.2);
      border-radius: 0;
      background: #FFFFFF url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='10' viewBox='0 0 10 10'%3E%3Cpath fill='%238A6A4A' d='M5 7L2 3h6z'/%3E%3C/svg%3E") no-repeat right 1rem center;
      appearance: none;
      font-size: 0.9rem;
      color: var(--text-dark);
    }

    .product-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 2rem 1.5rem;
      margin-bottom: 3.5rem;
    }
    .product-card { display: flex; flex-direction: column; position: relative; }
    .product-img-box {
      aspect-ratio: 1/1;
      overflow: hidden;
      background-color: #FFFFFF;
      margin-bottom: 1.2rem;
      position: relative;
      display: flex;
      align-items: center;
      justify-content: center;
    }
    .product-card-img {
      width: 85%;
      height: 85%;
      object-fit: contain;
      object-position: center;
      transition: transform 0.5s;
      cursor: pointer;
    }
    .product-card:hover .product-card-img { transform: scale(1.03); }

    .category-badge {
      position: absolute;
      top: 1rem; left: 1rem;
      background-color: rgba(85, 107, 77, 0.85);
      color: #FFFFFF;
      padding: 0.2rem 0.8rem;
      font-size: 0.75rem;
      font-family: var(--font-display);
      letter-spacing: 0.05em;
    }
    /* バッジの色分け設計 */
    .badge-senko { background-color: rgba(85, 107, 77, 0.9); }
    .badge-okoh { background-color: rgba(138, 106, 74, 0.9); }
    .badge-koro { background-color: rgba(74, 98, 106, 0.9); }
    .badge-kodatte { background-color: rgba(117, 94, 94, 0.9); }

    .product-name {
      font-family: var(--font-display);
      font-size: 0.95rem;
      font-weight: 500;
      color: var(--text-dark);
      margin-bottom: 0.5rem;
      line-height: 1.5;
      cursor: pointer;
    }
    .product-price {
      font-family: var(--font-body);
      font-size: 1.05rem;
      font-weight: 500;
      color: var(--text-dark);
      margin-bottom: 1.2rem;
    }
    .btn-add-cart {
      width: 100%;
      padding: 0.8rem;
      background-color: #FFFFFF;
      border: 1px solid var(--color-sub);
      color: var(--color-sub);
      font-family: var(--font-display);
      font-size: 0.85rem;
      letter-spacing: 0.1em;
      transition: all 0.3s;
    }
    .btn-add-cart:hover {
      background-color: var(--color-accent);
      border-color: var(--color-accent);
      color: #FFFFFF;
    }

    .more-btn-container { text-align: center; }
    .btn-secondary {
      display: inline-flex;
      padding: 1rem 4rem;
      border: 1px solid var(--text-dark);
      font-family: var(--font-display);
      font-size: 0.95rem;
      transition: all 0.4s;
    }
    .btn-secondary:hover {
      background-color: var(--text-dark);
      color: var(--bg-base);
    }

    /* -------------------------------------------------------------------------
       【セクション6：ご利用案内】
    ------------------------------------------------------------------------- */
    .guide-section.section-padding {
      padding-block: 4rem;
    }
    .guide-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 1.5rem;
    }
    .guide-card {
      background-color: #FFFFFF;
      padding: 1.5rem 1.25rem;
      text-align: center;
      border: 1px solid rgba(138, 106, 74, 0.05);
      display: flex;
      flex-direction: column;
      align-items: center;
    }
    .guide-icon-box {
      color: var(--color-main);
      margin-bottom: 1rem;
    }
    .guide-icon-box svg { width: 28px; height: 28px; stroke-width: 1.2; }
    .guide-card-title {
      font-family: var(--font-display);
      font-size: 1.05rem;
      font-weight: 600;
      color: var(--text-dark);
      margin-bottom: 0.75rem;
    }
    .guide-card-desc {
      font-size: 0.82rem;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 1.25rem;
      flex-grow: 1;
    }
    .guide-card-link {
      font-family: var(--font-display);
      font-size: 0.82rem;
      color: var(--color-sub);
      border-bottom: 1px solid var(--color-sub);
      padding-bottom: 0.15rem;
    }
    .guide-card-link:hover { color: var(--color-main); border-color: var(--color-main); }

    /* -------------------------------------------------------------------------
       【セクション9：フッター】
    ------------------------------------------------------------------------- */

    /* -------------------------------------------------------------------------
       RESPONSIVE DESIGN (スマートフォン主体設計への完全適応)
    ------------------------------------------------------------------------- */
    @media (max-width: 1024px) {
      .shop-layout {
        grid-template-columns: 1fr;
        gap: 1.75rem;
      }
      .category-sidebar {
        position: static;
        top: auto;
      }
      .category-sidebar-heading {
        margin-bottom: 0.75rem;
      }
      .category-nav {
        flex-direction: row;
        flex-wrap: nowrap;
        gap: 0.5rem;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        padding-bottom: 0.25rem;
      }
      .category-nav-item {
        flex: 0 0 auto;
        min-width: 7.5rem;
        border-left: none;
        border-bottom: 2px solid transparent;
        background-color: rgba(255, 255, 255, 0.65);
        padding: 0.65rem 0.9rem;
      }
      .category-nav-item:hover {
        border-left-color: transparent;
        border-bottom-color: var(--color-main);
      }
      .product-grid { grid-template-columns: repeat(2, 1fr); }
      .guide-grid { grid-template-columns: 1fr; gap: 1rem; }
    }

    @media (max-width: 768px) {
      .hero-section { padding: 2.5rem 1.5rem; min-height: 240px; }
      .hero-content { justify-content: flex-start; gap: 1.25rem; align-items: center; }
      .hero-bg {
        width: 100%;
        opacity: 0.35;
        background:
          linear-gradient(to right, var(--bg-base) 0%, rgba(248, 245, 240, 0.7) 28%, transparent 55%),
          url('/assets/images/hero.jpg') 85% center / cover no-repeat;
      }
      .hero-title { font-size: 1.75rem; margin-left: 0; gap: 0.45em; }
      .hero-title-line { letter-spacing: 0.12em; }
      .filter-controls { flex-direction: column; align-items: flex-start; gap: 1.25rem; }
      .product-grid { grid-template-columns: 1fr; }
    }