:root {
    --gold: #B8923A;
    --gold-light: #D4AA5C;
    --gold-pale: #F5EDD8;
    --dark: #1A1A18;
    --charcoal: #2C2C2A;
    --mid: #6B6B64;
    --soft: #9C9C92;
    --cream: #FAF8F3;
    --white: #FFFFFF;
    --border: #E8E3D8;
    --sidebar-w: 300px;
  }
  /**, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
  body { font-family: 'DM Sans', sans-serif; background: var(--cream); color: var(--dark); line-height: 1.6; }
*/
  /* TOP BANNER */
  .top-banner { background: var(--dark); color: var(--gold-pale); text-align: center; padding: 10px 20px; font-size: 12px; letter-spacing: 2px; text-transform: uppercase; font-weight: 500; }

  /* HEADER */
  header { background: var(--white); border-bottom: 1px solid var(--border); position: sticky; top: 0; z-index: 100; box-shadow: 0 2px 20px rgba(0,0,0,0.06); }
  .header-inner { max-width: 1400px; margin: 0 auto; padding: 0 30px; display: flex; align-items: center; justify-content: space-between; height: 72px; }
  .logo { font-size: 22px; font-weight: 600; color: var(--dark); letter-spacing: 1px; text-decoration: none; }
  .logo span { color: var(--gold); }
  .header-nav { display: flex; gap: 32px; align-items: center; }
  .header-nav a { font-size: 13px; font-weight: 500; color: var(--charcoal); text-decoration: none; letter-spacing: 0.5px; transition: color 0.2s; }
  .header-nav a:hover { color: var(--gold); }
  .header-cta { background: var(--gold) !important; color: var(--white) !important; padding: 9px 22px; border-radius: 2px; font-size: 12px !important; letter-spacing: 1.5px !important; text-transform: uppercase; }
  .header-cta:hover { background: var(--gold-light) !important; }
  .hamburger { display: none; flex-direction: column; gap: 5px; cursor: pointer; padding: 4px; }
  .hamburger span { display: block; width: 24px; height: 2px; background: var(--dark); border-radius: 2px; }

  /* BREADCRUMB */
  .breadcrumb-bar { background: var(--white); border-bottom: 1px solid var(--border); padding: 12px 30px; }
  .breadcrumb-bar .inner { max-width: 1400px; margin: 0 auto; display: flex; align-items: center; gap: 8px; font-size: 12px; color: var(--soft); }
  .breadcrumb-bar a { color: var(--soft); text-decoration: none; }
  .breadcrumb-bar a:hover { color: var(--gold); }
  .breadcrumb-bar .current { color: var(--gold); font-weight: 500; }

  /* PAGE LAYOUT */
  .page-wrap { max-width: 1400px; margin: 0 auto; padding: 40px 30px; display: grid; grid-template-columns: var(--sidebar-w) 1fr; gap: 40px; align-items: start; }

  /* ══════════════════════════════════
     SIDEBAR
  ══════════════════════════════════ */
  .sidebar { position: sticky; top: 88px; background: var(--white); border: 1px solid var(--border); border-radius: 4px; overflow: hidden; max-height: calc(100vh - 108px); overflow-y: auto; }
  .sidebar-header { background: #005B7B; padding: 4px 22px; display: flex; align-items: center; gap: 10px; position: sticky; top: 0; z-index: 2; }
  .sidebar-header h3 { font-size: 16px; font-weight: 500; color: var(--gold-pale); letter-spacing: 1px; text-transform: uppercase; line-height: 40px; }
  .sidebar-nav { padding: 8px 0 16px; }

  .sidebar-all { display: flex; align-items: center; gap: 8px; padding: 12px 22px; font-size: 16px; font-weight: 600; color: var(--gold); text-decoration: none; border-bottom: 1px solid var(--border); margin-bottom: 4px; letter-spacing: 0.3px; transition: background 0.2s; cursor: pointer; }
  .sidebar-all:hover, .sidebar-all.active { background: var(--gold-pale); }

  /* Category row */
  .cat-item { display: flex; align-items: center; cursor: pointer; border-left: 3px solid transparent; transition: all 0.15s; }
  .cat-item:hover { background: var(--cream); border-left-color: var(--gold-light); }
  .cat-item.active { border-left-color: var(--gold); background: var(--gold-pale); }

  .cat-label-wrap { flex: 1; padding: 12px 12px 12px 14px; display: flex; align-items: center; justify-content: space-between; gap: 8px; }
  .cat-label-wrap span { font-size: 16px; font-weight: 500; color: var(--charcoal); line-height: 1.3; }
  .cat-item.active .cat-label-wrap span { color: var(--dark); }
  .cat-chevron { width: 14px; height: 14px; color: var(--soft); transition: transform 0.25s; flex-shrink: 0; }
  .cat-item.active .cat-chevron { transform: rotate(90deg); color: var(--gold); }

  /* Sub panel */
  .sub-panel { display: none; background: #ebf3eb; border-top: 1px solid var(--border); }
  .sub-panel.open { display: block; }
  .sub-panel-header { padding: 7px 14px 5px 14px; font-size: 10px; font-weight: 600; letter-spacing: 2px; text-transform: uppercase; color: var(--soft); border-bottom: 1px solid var(--border); }

  .sub-type-item { display: flex; align-items: center; cursor: pointer; border-left: 3px solid transparent; transition: all 0.15s; }
  .sub-type-item:hover { background: rgba(184,146,58,0.06); border-left-color: var(--gold-light); }
  .sub-type-item.active { background: rgba(184,146,58,0.12); border-left-color: var(--gold); }

  .sub-label { padding: 8px 12px; font-size: 15px; color: #1F5320; line-height: 1.35; flex: 1; }
  .sub-type-item.active .sub-label { color: var(--dark); font-weight: 500; }
  .sub-type-item:hover .sub-label { color: var(--gold); }

  .sidebar-overlay { display: none; position: fixed; inset: 0; background: rgba(0,0,0,0.5); z-index: 199; backdrop-filter: blur(2px); }
  .sidebar-close { display: none; position: absolute; top: 16px; right: 16px; background: none; border: none; color: var(--gold-pale); font-size: 22px; cursor: pointer; z-index: 10; }

  /* ══════════════════════════════════
     MAIN RIGHT CONTENT
  ══════════════════════════════════ */
  .mobile-filter-btn { display: none; align-items: center; gap: 8px; background: var(--dark); color: var(--gold-pale); border: none; padding: 12px 20px; font-size: 13px; font-weight: 500; cursor: pointer; border-radius: 3px; margin-bottom: 24px; width: 100%; justify-content: center; }

  .page-title-area { margin-bottom: 40px; padding-bottom: 10px; border-bottom: 1px solid var(--border); display: flex; align-items: flex-end; justify-content: space-between; flex-wrap: wrap; gap: 12px; }
  .page-title-area h1 {  font-size: clamp(24px, 3.5vw, 38px); font-weight: 400; color: var(--dark); line-height: 1.15; }
  .page-title-area h1 em { font-style: italic; color: var(--gold); }
  .product-count { font-size: 12px; color: var(--soft); letter-spacing: 1px; text-transform: uppercase; font-weight: 500; }

  /* ── PANEL SYSTEM ── */
  .panel { display: none; }
  .panel.active { display: block; animation: fadeUp 0.3s ease both; }

  @keyframes fadeUp { from { opacity:0; transform:translateY(10px); } to { opacity:1; transform:none; } }

  /* ── BACK BUTTON ── */
  .back-btn { display: inline-flex; align-items: center; gap: 7px; font-size: 12px; font-weight: 500; color: var(--mid); text-transform: uppercase; letter-spacing: 1px; cursor: pointer; background: none; border: none; padding: 0; margin-bottom: 20px; transition: color 0.2s; }
  .back-btn:hover { color: var(--gold); }

  /* ── OVERVIEW GRID ── */
  .overview-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(185px, 1fr)); gap: 40px 26px; }
  .ov-card { background: var(--white); border: 1px solid var(--border); border-radius: 5px; overflow: hidden; cursor: pointer; transition: all 0.25s; display: flex; flex-direction: column; }
  .ov-card:hover { border-color: var(--gold); box-shadow: 0 8px 28px rgba(0,0,0,0.08); transform: translateY(-3px); }
  .ov-card-img { height: 115px; overflow: hidden; background: var(--gold-pale); }
  .ov-card-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.4s; display: block; }
  .ov-card:hover .ov-card-img img { transform: scale(1.06); }
  .ov-card-body { padding: 12px 14px; display: flex; align-items: center; justify-content: space-between; gap: 8px; }
  .ov-card-body h3 {  font-size: 18px; font-weight: 500; color: var(--dark); line-height: 1.0; }
  .ov-arrow { color: var(--gold); font-size: 15px; opacity: 0.4; flex-shrink: 0; transition: opacity 0.2s, transform 0.2s; }
  .ov-card:hover .ov-arrow { opacity: 1; transform: translateX(3px); }

  /* ── CATEGORY / TYPES HEADING ── */
  .cat-heading-area { margin-bottom: 24px; }
  .cat-heading-area h2 {  font-size: clamp(22px, 2.8vw, 32px); font-weight: 400; color: var(--dark); line-height: 1.2; margin-bottom: 4px; }
  .cat-heading-area h2 em { font-style: italic; color: var(--gold); }
  .cat-subtitle-tag { font-size: 11px; letter-spacing: 2px; text-transform: uppercase; color: var(--gold); font-weight: 600; }

  /* ── TYPES GRID ── */
  .types-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(232px, 1fr)); gap: 16px 26px; }
  .type-card { background: var(--white); border: 1px solid var(--border); border-radius: 6px; overflow: hidden; cursor: pointer; transition: all 0.25s; }
  .type-card:hover { border-color: var(--gold); box-shadow: 0 8px 28px rgba(0,0,0,0.08); transform: translateY(-3px); }
  /*.type-card-img { height: 140px; overflow: hidden; background: var(--gold-pale); }
  .type-card-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.4s; display: block; }*/
  .type-card:hover .type-card-img img { transform: scale(1.06); }
  .type-card-body { padding: 14px 16px; display: flex; align-items: center; justify-content: space-between; gap: 8px; }
  .type-card-body h3 {  font-size: 15px; font-weight: 500; color: var(--dark); line-height: 1.3; }
  .type-arrow { color: var(--gold); font-size: 15px; opacity: 0.4; flex-shrink: 0; transition: opacity 0.2s, transform 0.2s; }
  .type-card:hover .type-arrow { opacity: 1; transform: translateX(3px); }

  /* ── GRADES DETAIL VIEW ── */
  .grades-bc { display: flex; align-items: center; gap: 6px; font-size: 12px; color: var(--soft); margin-bottom: 20px; flex-wrap: wrap; }
  .grades-bc span { cursor: pointer; transition: color 0.2s; }
  .grades-bc span:hover { color: var(--gold); }
  .grades-bc .bc-sep { color: var(--border); cursor: default; }
  .grades-bc .bc-cur { color: var(--gold); font-weight: 500; cursor: default; }

  .grades-heading-area { margin-bottom: 24px; padding-bottom: 16px; border-bottom: 1px solid var(--border); }
  .grades-heading-area h2 { font-size: clamp(16px, 2.1vw, 24px); font-weight: 500; color: var(--dark); line-height: 1.0; margin-bottom: 0px; }
  .grades-tag { font-size: 10px; letter-spacing: 2.5px; text-transform: uppercase; color: var(--gold); font-weight: 600; }

  /* ── GRADES PRODUCT CARD ── */
  .grades-card { background: var(--white); border: 1px solid var(--border); border-radius: 8px; overflow: hidden; transition: box-shadow 0.25s; }
  .grades-card:hover { box-shadow: 0 10px 36px rgba(184,146,58,0.12); border-color: var(--gold-light); }

  /* Image gallery — full width on top */
  .p-gallery { position: relative; overflow: hidden; background: var(--gold-pale); width: 100%; height: 400px; }
  .g-slides { display: flex; height: 100%; transition: transform 0.42s cubic-bezier(0.25,0.46,0.45,0.94); }
  .g-slide { min-width: 100%; height: 100%; flex-shrink: 0; }
  .g-slide img { width: 100%; height: 100%; object-fit: cover; display: block; }

  /* Thumbnails bottom-left of gallery */
  .g-thumbs { position: absolute; bottom: 14px; left: 14px; display: flex; gap: 8px; z-index: 2; }
  .g-thumb { width: 68px; height: 52px; border-radius: 4px; overflow: hidden; cursor: pointer; border: 2px solid rgba(255,255,255,0.3); opacity: 0.65; transition: opacity 0.2s, border-color 0.2s; flex-shrink: 0; box-shadow: 0 2px 8px rgba(0,0,0,0.25); }
  .g-thumb img { width: 100%; height: 100%; object-fit: cover; display: block; }
  .g-thumb.on { border-color: var(--gold); opacity: 1; }

  /* Prev / Next arrows */
  .g-btn { position: absolute; top: 50%; transform: translateY(-50%); background: rgba(255,255,255,0.92); border: none; width: 44px; height: 44px; border-radius: 50%; cursor: pointer; display: flex; align-items: center; justify-content: center; font-size: 24px; color: var(--dark); z-index: 3; box-shadow: 0 3px 14px rgba(0,0,0,0.15); transition: background 0.18s, color 0.18s; line-height: 1; }
  .g-btn:hover { background: var(--gold); color: var(--white); }
  .g-prev { left: 14px; }
  .g-next { right: 14px; }
  .g-btn.hidden { display: none; }

  /* Detail area below image */
  .p-detail { padding: 28px 32px 32px; }
  .p-name {  font-size: clamp(20px, 2vw, 26px); font-weight: 500; color: var(--dark); line-height: 1.25; margin-bottom: 16px; }
  .p-divider { height: 1px; background: var(--border); margin-bottom: 24px; }
  .p-meta { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; margin-bottom: 28px; }
  .m-col-title { font-size: 10px; font-weight: 600; letter-spacing: 2.5px; text-transform: uppercase; color: var(--gold); margin-bottom: 12px; padding-bottom: 8px; border-bottom: 1px solid var(--border); }
  .m-col ul { list-style: none; display: flex; flex-direction: column; gap: 7px; }
  .m-col ul li { font-size: 13px; color: var(--mid); display: flex; align-items: flex-start; gap: 9px; line-height: 1.5; }
  .m-col ul li::before { content: ''; width: 5px; height: 5px; background: var(--gold-light); border-radius: 50%; flex-shrink: 0; margin-top: 7px; }
  .p-cta { display: inline-flex; align-items: center; gap: 10px; background: var(--dark); color: var(--gold-pale); padding: 13px 28px; border-radius: 2px; font-size: 11px; font-weight: 500; letter-spacing: 1.5px; text-transform: uppercase; text-decoration: none; transition: background 0.2s; }
  .p-cta:hover { background: var(--gold); color: var(--white); }

  /* ── RESPONSIVE ── */
  @media (max-width: 860px) {
    .page-wrap { grid-template-columns: 1fr; padding: 24px 20px; }
    .sidebar { position: fixed; top: 0; left: 0; width: min(320px, 88vw); height: 100vh; max-height: 100vh; overflow-y: auto; z-index: 200; transform: translateX(-105%); transition: transform 0.3s cubic-bezier(0.25,0.46,0.45,0.94); border-radius: 0; border: none; box-shadow: 4px 0 32px rgba(0,0,0,0.2); }
    .sidebar.open { transform: translateX(0); }
    .sidebar-overlay { display: block; opacity: 0; pointer-events: none; transition: opacity 0.3s; }
    .sidebar-overlay.open { opacity: 1; pointer-events: auto; }
    .sidebar-close { display: block; }
    .mobile-filter-btn { display: flex; }
    .header-nav { display: none; }
    .hamburger { display: flex; }
    .p-gallery { height: 260px; }
    .p-meta { grid-template-columns: 1fr; gap: 20px; }
    .p-detail { padding: 20px 20px 24px; }
    .g-thumb { width: 52px; height: 40px; }
  }
  @media (max-width: 600px) { .p-gallery { height: 210px; } .g-thumbs { display: none; } }
  @media (max-width: 480px) { .overview-grid { grid-template-columns: 1fr 1fr; } .types-grid { /*grid-template-columns: 1fr 1fr; */} .page-wrap { padding: 16px; } }