:root {
      --bg: #f7fafc;
      --surface: #ffffff;
      --surface-alt: #f1f5f9;
      --text: #1f2937;
      --muted: #64748b;
      --line: #dbe4ee;
      --primary: #0ea5e9;
      --primary-dark: #0284c7;
      --accent: #22c55e;
      --dark: #0f172a;
      --danger: #dc2626;
      --shadow: 0 10px 30px rgba(15, 23, 42, 0.08);
      --radius: 16px;
      --max: 1180px;
    }

    * { box-sizing: border-box; }
    html { scroll-behavior: smooth; }
    body {
      margin: 0;
      font-family: Arial, Helvetica, sans-serif;
      color: var(--text);
      background: var(--bg);
      line-height: 1.6;
    }

    a { color: inherit; text-decoration: none; }
    img { max-width: 100%; display: block; }
    button, input, select, textarea { font: inherit; }

    .container {
      width: min(var(--max), calc(100% - 32px));
      margin: 0 auto;
    }

    .section { padding: 68px 0; }

    .section-title {
      font-size: clamp(1.9rem, 2.8vw, 2.8rem);
      margin: 0 0 12px;
      text-align: center;
      color: var(--dark);
    }

    .section-subtitle {
      max-width: 840px;
      margin: 0 auto 34px;
      text-align: center;
      color: var(--muted);
      font-size: 1.05rem;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      border: 0;
      border-radius: 10px;
      padding: 14px 20px;
      cursor: pointer;
      font-weight: 700;
      transition: .18s ease;
    }

    .btn:hover { transform: translateY(-1px); }
    .btn-primary { background: var(--primary); color: #fff; }
    .btn-primary:hover { background: var(--primary-dark); }
    .btn-secondary { background: #e0f2fe; color: var(--primary-dark); }
    .btn-secondary:hover { background: #bae6fd; }
    .btn-light { background: #fff; color: var(--text); border: 1px solid var(--line); }

    .topbar {
      background: var(--dark);
      color: #dbeafe;
      font-size: .92rem;
      padding: 10px 0;
    }

    .topbar-inner {
      display: flex;
      justify-content: space-between;
      gap: 18px;
      flex-wrap: wrap;
    }

    .shop-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: #fff;
      border-bottom: 1px solid var(--line);
      box-shadow: 0 4px 20px rgba(15, 23, 42, 0.05);
    }

    .shop-header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 18px;
      min-height: 78px;
    }

    .shop-logo {
      display: flex;
      align-items: center;
      gap: 12px;
      font-weight: 800;
      color: var(--dark);
      font-size: 1.05rem;
    }

    .shop-logo-badge {
      width: 44px;
      height: 44px;
      border-radius: 12px;
      background: linear-gradient(135deg, var(--primary), var(--accent));
      color: #fff;
      display: grid;
      place-items: center;
      font-weight: 800;
    }

    .shop-nav {
      display: flex;
      gap: 18px;
      flex-wrap: wrap;
    }

    .shop-nav a {
      color: var(--muted);
      font-weight: 700;
    }

    .shop-nav a:hover { color: var(--dark); }

    .shop-actions {
      display: flex;
      align-items: center;
      gap: 10px;
      flex-wrap: wrap;
    }

    .hero {
      padding: 78px 0 52px;
      background: linear-gradient(180deg, #e0f2fe 0%, #f7fafc 58%);
      border-bottom: 1px solid var(--line);
    }

    .hero-grid {
      display: grid;
      grid-template-columns: 1.1fr .9fr;
      gap: 28px;
      align-items: center;
    }

    .eyebrow {
      display: inline-block;
      background: #dcfce7;
      color: #166534;
      padding: 8px 12px;
      border-radius: 999px;
      font-size: .9rem;
      font-weight: 700;
      margin-bottom: 16px;
    }

    .hero h1 {
      font-size: clamp(2.3rem, 4vw, 4.2rem);
      line-height: 1.05;
      margin: 0 0 16px;
      color: var(--dark);
    }

    .hero p {
      font-size: 1.08rem;
      color: var(--muted);
      margin: 0 0 24px;
      max-width: 690px;
    }

    .hero-actions {
      display: flex;
      gap: 12px;
      flex-wrap: wrap;
      margin-bottom: 24px;
    }

    .hero-points {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 14px;
    }

    .point, .card {
      background: var(--surface);
      border: 1px solid var(--line);
      border-radius: var(--radius);
      box-shadow: var(--shadow);
    }

    .point {
      padding: 16px;
      font-size: .96rem;
    }

    .hero-card {
      background: #fff;
      border: 1px solid var(--line);
      border-radius: 22px;
      box-shadow: var(--shadow);
      padding: 20px;
    }

    .hero-card img {
      border-radius: 16px;
      min-height: 280px;
      object-fit: cover;
      background: linear-gradient(135deg, #bae6fd, #ecfeff);
    }

    .mini-stats {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 12px;
      margin-top: 14px;
    }

    .mini-stats div {
      background: var(--surface-alt);
      border: 1px solid var(--line);
      border-radius: 14px;
      padding: 12px;
      text-align: center;
    }

    .mini-stats strong {
      display: block;
      font-size: 1.08rem;
      color: var(--dark);
    }

    .cards-3, .cards-4, .legal-grid, .faq-grid, .product-grid {
      display: grid;
      gap: 20px;
    }

    .cards-3, .legal-grid, .faq-grid, .product-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
    .cards-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }

    .card { padding: 22px; }
    .card h3 { margin: 0 0 12px; color: var(--dark); }
    .card p { color: var(--muted); margin: 0; }

    .features .card {
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .feature-icon {
      width: 48px;
      height: 48px;
      border-radius: 12px;
      display: grid;
      place-items: center;
      background: #e0f2fe;
      color: var(--primary-dark);
      font-size: 1.3rem;
    }

    .shop-toolbar {
      display: grid;
      grid-template-columns: 1.2fr .7fr .7fr;
      gap: 14px;
      margin-bottom: 24px;
    }

    .field, .select {
      width: 100%;
      border: 1px solid var(--line);
      border-radius: 12px;
      padding: 14px 15px;
      background: #fff;
      color: var(--text);
    }

    .product-card {
      display: flex;
      flex-direction: column;
      gap: 14px;
      height: 100%;
    }

    .product-media {
      aspect-ratio: 16/10;
      border-radius: 14px;
      background: linear-gradient(135deg, #e0f2fe, #ecfeff);
      display: grid;
      place-items: center;
      font-size: 2.3rem;
      border: 1px solid var(--line);
    }

    .product-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
    }

    .tag {
      display: inline-flex;
      padding: 7px 10px;
      border-radius: 999px;
      background: #f0fdf4;
      color: #166534;
      font-size: .84rem;
      font-weight: 700;
    }

    .product-card ul {
      margin: 0;
      padding-left: 18px;
      color: var(--muted);
    }

    .product-meta {
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 12px;
      margin-top: auto;
    }

    .price {
      font-size: 1.45rem;
      font-weight: 800;
      color: var(--dark);
    }

    .price small {
      display: block;
      font-size: .82rem;
      color: var(--muted);
      font-weight: 400;
      margin-top: 2px;
    }

    .qty-row {
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .qty-control {
      display: inline-flex;
      align-items: center;
      border: 1px solid var(--line);
      border-radius: 999px;
      overflow: hidden;
      background: #fff;
    }

    .qty-control button {
      width: 36px;
      height: 36px;
      border: 0;
      background: #fff;
      cursor: pointer;
      font-size: 1rem;
    }

    .qty-control span {
      min-width: 34px;
      text-align: center;
      font-weight: 700;
    }

    .checkout-layout {
      display: grid;
      grid-template-columns: 1.1fr .9fr;
      gap: 22px;
      align-items: start;
    }

    .checkout-card h3, .summary-card h3 { margin-top: 0; }

    .form-grid {
      display: grid;
      grid-template-columns: repeat(2, minmax(0, 1fr));
      gap: 14px;
    }

    .form-grid .full { grid-column: 1 / -1; }

    label {
      display: block;
      margin-bottom: 8px;
      font-weight: 700;
      font-size: .95rem;
      color: var(--dark);
    }

    .radio-group {
      display: grid;
      gap: 10px;
    }

    .radio {
      border: 1px solid var(--line);
      border-radius: 12px;
      padding: 14px;
      display: flex;
      gap: 12px;
      align-items: flex-start;
      background: #fff;
    }

    .summary-list {
      display: grid;
      gap: 14px;
      margin-bottom: 18px;
    }

    .summary-item {
      display: grid;
      grid-template-columns: 1fr auto;
      gap: 12px;
      padding-bottom: 14px;
      border-bottom: 1px solid var(--line);
    }

    .summary-totals {
      display: grid;
      gap: 10px;
    }

    .summary-row {
      display: flex;
      justify-content: space-between;
      gap: 14px;
    }

    .summary-row.total {
      font-size: 1.15rem;
      font-weight: 800;
      padding-top: 10px;
      border-top: 1px solid var(--line);
      margin-top: 6px;
      color: var(--dark);
    }

    .notice {
      border-radius: 12px;
      padding: 14px 16px;
      font-weight: 700;
      margin-top: 16px;
      display: none;
    }

    .notice.success {
      background: #dcfce7;
      color: #166534;
      display: block;
    }

    .footer {
      background: var(--dark);
      color: #cbd5e1;
      padding: 42px 0;
      margin-top: 50px;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.2fr .9fr .9fr;
      gap: 24px;
    }

    .footer h3, .footer h4 { color: #fff; }
    .footer a { color: #cbd5e1; }

    .sticky-help {
      position: fixed;
      bottom: 18px;
      left: 18px;
      z-index: 900;
      padding: 14px 18px;
      background: var(--dark);
      color: #fff;
      border-radius: 999px;
      box-shadow: var(--shadow);
      font-weight: 800;
    }

    .cart-fab {
      position: fixed;
      right: 18px;
      bottom: 18px;
      z-index: 1100;
      box-shadow: var(--shadow);
      border-radius: 999px;
    }

    .cart-sidebar {
      position: fixed;
      top: 0;
      right: -430px;
      width: 410px;
      max-width: calc(100vw - 20px);
      height: 100vh;
      background: #fff;
      z-index: 1200;
      box-shadow: -18px 0 40px rgba(17,24,39,.16);
      display: flex;
      flex-direction: column;
      transition: right .28s ease;
    }

    .cart-sidebar.open { right: 0; }

    .cart-header,
    .cart-footer {
      padding: 18px 20px;
      border-bottom: 1px solid var(--line);
    }

    .cart-footer {
      border-top: 1px solid var(--line);
      border-bottom: 0;
      margin-top: auto;
    }

    .cart-header-row {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 14px;
    }

    .cart-close {
      border: 0;
      background: #eef2f7;
      width: 40px;
      height: 40px;
      border-radius: 999px;
      font-size: 1.2rem;
      cursor: pointer;
    }

    .cart-items {
      padding: 18px 20px;
      overflow: auto;
      display: grid;
      gap: 14px;
    }

    .cart-item {
      border: 1px solid var(--line);
      border-radius: 14px;
      padding: 14px;
      display: grid;
      gap: 10px;
    }

    .cart-item-top {
      display: flex;
      justify-content: space-between;
      gap: 12px;
      align-items: start;
    }

    .cart-item small,
    .muted { color: var(--muted); }

    .remove-btn {
      border: 0;
      background: transparent;
      color: var(--danger);
      font-weight: 700;
      cursor: pointer;
      padding: 0;
    }

    .overlay {
      position: fixed;
      inset: 0;
      background: rgba(15, 23, 42, .35);
      opacity: 0;
      visibility: hidden;
      transition: .2s ease;
      z-index: 1150;
    }

    .overlay.show {
      opacity: 1;
      visibility: visible;
    }

    .hidden { display: none !important; }

    @media (max-width: 1024px) {
      .hero-grid,
      .checkout-layout,
      .footer-grid,
      .legal-grid,
      .faq-grid,
      .cards-4,
      .cards-3,
      .product-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
      .hero-points,
      .shop-toolbar { grid-template-columns: 1fr; }
    }

    @media (max-width: 760px) {
      .shop-header-inner {
        align-items: flex-start;
        flex-direction: column;
        padding: 12px 0;
      }

      .shop-nav,
      .shop-actions,
      .hero-actions,
      .form-grid,
      .cards-3,
      .cards-4,
      .product-grid,
      .legal-grid,
      .faq-grid,
      .checkout-layout,
      .footer-grid,
      .hero-grid,
      .mini-stats { grid-template-columns: 1fr; }

      .hero { padding-top: 42px; }
      .section { padding: 46px 0; }
      .sticky-help { left: 12px; bottom: 12px; }
      .cart-fab { right: 12px; bottom: 74px; }
    }