/* ── Reset & Base ─────────────────────────────────── */
    *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

    :root {
      --qx-bg:      #080b10;
      --qx-surface: #0d1117;
      --qx-border:  #1a2233;
      --qx-muted:   #2a3550;
      --qx-accent:  #4285f4;
      --qx-accent2: #7c3aed;
      --qx-text:    #e2e8f0;
      --qx-sub:     #8b9ab2;
      --qx-success: #10b981;
      --qx-error:   #ef4444;
    }

    html { background: var(--qx-bg); scroll-behavior: smooth; }

    body {
      font-family: 'DM Sans', sans-serif;
      background: var(--qx-bg);
      color: var(--qx-text);
      overflow-x: hidden;
      -webkit-font-smoothing: antialiased;
      padding-bottom: 80px;
    }

    body::before {
      content: '';
      position: fixed;
      inset: 0;
      background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.04'/%3E%3C/svg%3E");
      pointer-events: none;
      z-index: 9999;
      opacity: 0.35;
    }

    #scroll-progress {
      position: fixed;
      top: 0; left: 0;
      height: 2px;
      width: 0%;
      background: linear-gradient(90deg, var(--qx-accent), var(--qx-accent2));
      z-index: 10000;
      transition: width 0.1s linear;
    }

    .container { max-width: 1200px; margin: 0 auto; padding: 0 1.5rem; }

    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      font-size: 0.7rem;
      font-weight: 600;
      letter-spacing: 0.18em;
      text-transform: uppercase;
      color: var(--qx-accent);
    }
    .eyebrow::before {
      content: '';
      display: block;
      width: 24px; height: 1px;
      background: var(--qx-accent);
    }

    /* ── Bilingual ────────────────────────────────────── */
    .qvx-bn { display: none; }
    .qvx-en { display: inline; }
    [data-lang="bn"] .qvx-bn { display: inline; }
    [data-lang="bn"] .qvx-en { display: none; }

    [data-lang="bn"] h1,
    [data-lang="bn"] h2,
    [data-lang="bn"] h3,
    [data-lang="bn"] p,
    [data-lang="bn"] .eyebrow,
    [data-lang="bn"] .qvx-bn {
      font-family: 'Noto Sans Bengali', 'DM Sans', sans-serif;
      letter-spacing: 0;
      line-height: 1.65;
    }

    .reveal-up {
      opacity: 0;
      transform: translateY(40px);
      transition: opacity 0.7s ease, transform 0.7s ease;
      will-change: opacity, transform;
    }
    .reveal-up.is-visible { opacity: 1; transform: none; }
    @media (prefers-reduced-motion: reduce) {
      .reveal-up { transition: none; opacity: 1; transform: none; }
    }

    /* ══════════════════════════════════════════════════
       TOP NAV BAR
    ══════════════════════════════════════════════════ */
    .topbar {
      position: sticky;
      top: 0;
      z-index: 500;
      background: rgba(8,11,16,0.88);
      backdrop-filter: blur(16px);
      border-bottom: 1px solid var(--qx-border);
      height: 60px;
      display: flex;
      align-items: center;
    }
    .topbar-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      width: 100%;
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 1.5rem;
      gap: 1rem;
    }
    .topbar-logo {
      font-family: 'Syne', sans-serif;
      font-size: 1.1rem;
      font-weight: 800;
      letter-spacing: 0.06em;
      text-decoration: none;
      color: var(--qx-text);
      display: flex;
      align-items: center;
      gap: 8px;
      white-space: nowrap;
      flex-shrink: 0;
    }
    .topbar-logo .logo-dot {
      width: 8px; height: 8px;
      border-radius: 50%;
      background: var(--qx-accent);
      box-shadow: 0 0 8px var(--qx-accent);
    }
    /* Logo image support */
    .topbar-logo .logo-img {
      height: 32px;
      width: auto;
      max-width: 120px;
      object-fit: contain;
      display: block;
    }
    .topbar-logo .logo-text-fallback {
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .topbar-search {
      flex: 1;
      min-width: 0;
      max-width: 420px;
      position: relative;
    }
    .topbar-search input {
      width: 100%;
      background: var(--qx-surface);
      border: 1px solid var(--qx-border);
      border-radius: 8px;
      padding: 8px 14px 8px 38px;
      font-family: 'DM Sans', sans-serif;
      font-size: 0.85rem;
      color: var(--qx-text);
      outline: none;
      transition: border-color 0.22s;
    }
    .topbar-search input::placeholder { color: var(--qx-sub); }
    .topbar-search input:focus { border-color: var(--qx-accent); }
    .topbar-search .search-icon {
      position: absolute;
      left: 11px;
      top: 50%;
      transform: translateY(-50%);
      color: var(--qx-sub);
      pointer-events: none;
    }
    .topbar-actions { display: flex; align-items: center; gap: 12px; }
    .lang-toggle {
      background: var(--qx-surface);
      border: 1px solid var(--qx-border);
      border-radius: 6px;
      color: var(--qx-sub);
      font-family: 'DM Sans', sans-serif;
      font-size: 0.75rem;
      font-weight: 600;
      padding: 5px 10px;
      cursor: pointer;
      transition: border-color 0.22s, color 0.22s;
      letter-spacing: 0.08em;
    }

    /* ══════════════════════════════════════════════════
       SHOP HERO BANNER
    ══════════════════════════════════════════════════ */
    .shop-hero {
      position: relative;
      padding: 4rem 1.5rem 3.5rem;
      text-align: center;
      overflow: hidden;
    }
    .shop-hero-bg {
      position: absolute;
      inset: 0;
      background-image:
        linear-gradient(var(--qx-border) 1px, transparent 1px),
        linear-gradient(90deg, var(--qx-border) 1px, transparent 1px);
      background-size: 60px 60px;
      mask-image: radial-gradient(ellipse 80% 100% at 50% 50%, black 10%, transparent 80%);
      opacity: 0.2;
    }
    .shop-hero-blob {
      position: absolute;
      border-radius: 50%;
      pointer-events: none;
      top: -30%; left: 50%;
      transform: translateX(-50%);
      width: 700px; height: 400px;
      background: radial-gradient(ellipse, rgba(66,133,244,.08) 0%, transparent 70%);
    }
    .shop-hero-inner { position: relative; z-index: 2; }
    .shop-hero-tag {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 5px 16px 5px 10px;
      border-radius: 999px;
      border: 1px solid rgba(66,133,244,.3);
      background: rgba(66,133,244,.06);
      font-size: 0.7rem;
      font-weight: 700;
      letter-spacing: 0.14em;
      text-transform: uppercase;
      color: var(--qx-accent);
      margin-bottom: 1.5rem;
    }
    .shop-hero-tag .tag-dot {
      width: 6px; height: 6px;
      border-radius: 50%;
      background: var(--qx-accent);
      animation: pulse-dot 1.8s ease-in-out infinite;
    }
    @keyframes pulse-dot {
      0%, 100% { opacity: 1; transform: scale(1); }
      50% { opacity: 0.5; transform: scale(1.5); }
    }
    .shop-hero h1 {
      font-family: 'Syne', sans-serif;
      font-size: clamp(2.4rem, 5vw, 4rem);
      font-weight: 800;
      line-height: 1.05;
      letter-spacing: -0.03em;
      margin-bottom: 1rem;
    }
    .shop-hero h1 .grad {
      background: linear-gradient(135deg, var(--qx-accent), var(--qx-accent2));
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
    }
    .shop-hero-sub {
      font-size: 0.95rem;
      color: var(--qx-sub);
      max-width: 440px;
      margin: 0 auto 2rem;
      line-height: 1.7;
    }

    /* ══════════════════════════════════════════════════
       FILTER BAR
    ══════════════════════════════════════════════════ */
    .filter-bar {
      border-top: 1px solid var(--qx-border);
      border-bottom: 1px solid var(--qx-border);
      background: var(--qx-surface);
      padding: 0 1.5rem;
      position: sticky;
      top: 60px;
      z-index: 400;
    }
    .filter-inner {
      max-width: 1200px;
      margin: 0 auto;
      display: flex;
      align-items: center;
      gap: 0;
      overflow-x: auto;
      scrollbar-width: none;
    }
    .filter-inner::-webkit-scrollbar { display: none; }
    .filter-btn {
      flex-shrink: 0;
      padding: 14px 20px;
      font-family: 'DM Sans', sans-serif;
      font-size: 0.8rem;
      font-weight: 500;
      letter-spacing: 0.05em;
      color: var(--qx-sub);
      background: none;
      border: none;
      border-bottom: 2px solid transparent;
      cursor: pointer;
      transition: color 0.22s, border-color 0.22s;
      white-space: nowrap;
    }
    .filter-btn:hover { color: var(--qx-text); }
    .filter-btn.active { color: var(--qx-accent); border-bottom-color: var(--qx-accent); }
    .filter-sep { flex: 1; }
    .sort-select {
      flex-shrink: 0;
      background: transparent;
      border: 1px solid var(--qx-border);
      border-radius: 6px;
      color: var(--qx-sub);
      font-family: 'DM Sans', sans-serif;
      font-size: 0.75rem;
      padding: 5px 10px;
      cursor: pointer;
      outline: none;
      margin: 8px 0;
    }
    .sort-select option { background: var(--qx-surface); }

    /* ══════════════════════════════════════════════════
       PRODUCT GRID
    ══════════════════════════════════════════════════ */
    .shop-section { padding: 3rem 0 5rem; }
    .product-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 1.25rem;
      margin-top: 2rem;
    }
    .product-card {
      background: var(--qx-surface);
      border: 1px solid var(--qx-border);
      border-radius: 16px;
      overflow: hidden;
      display: flex;
      flex-direction: column;
      transition: border-color 0.28s, transform 0.28s, box-shadow 0.28s;
      cursor: pointer;
      position: relative;
    }
    .product-card:hover {
      border-color: rgba(66,133,244,.35);
      transform: translateY(-4px);
      box-shadow: 0 20px 60px rgba(0,0,0,.45), 0 0 40px rgba(66,133,244,.06);
    }
    .card-badge {
      position: absolute;
      top: 12px; left: 12px;
      padding: 3px 10px;
      border-radius: 4px;
      font-size: 0.62rem;
      font-weight: 700;
      letter-spacing: 0.1em;
      text-transform: uppercase;
      z-index: 3;
    }
    .badge-new { background: rgba(66,133,244,.2); border: 1px solid rgba(66,133,244,.3); color: var(--qx-accent); }
    .badge-hot { background: rgba(239,68,68,.2); border: 1px solid rgba(239,68,68,.3); color: #ef4444; }
    .badge-stock { background: rgba(16,185,129,.15); border: 1px solid rgba(16,185,129,.25); color: #10b981; }
    .card-img {
      position: relative;
      aspect-ratio: 4/3;
      overflow: hidden;
      background: var(--qx-bg);
    }
    .card-img-inner {
      width: 100%; height: 100%;
      display: flex;
      align-items: center;
      justify-content: center;
      position: relative;
    }
    .card-img img { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform 0.4s ease; }
    .product-card:hover .card-img img { transform: scale(1.04); }
    .card-img-placeholder {
      width: 100%; height: 100%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 4rem;
      position: absolute;
      inset: 0;
    }
    .card-img-grid {
      position: absolute;
      inset: 0;
      background-image:
        linear-gradient(var(--qx-border) 1px, transparent 1px),
        linear-gradient(90deg, var(--qx-border) 1px, transparent 1px);
      background-size: 32px 32px;
      opacity: 0.2;
    }
    .card-img-glow {
      position: absolute;
      inset: 0;
      background: radial-gradient(ellipse 70% 70% at 50% 50%, rgba(66,133,244,.1), transparent 70%);
      pointer-events: none;
    }
    .card-body {
      padding: 1.25rem;
      display: flex;
      flex-direction: column;
      gap: 0.75rem;
      flex: 1;
    }
    .card-category { font-size: 0.68rem; font-weight: 600; letter-spacing: 0.12em; text-transform: uppercase; color: var(--qx-accent); }
    .card-name { font-family: 'Syne', sans-serif; font-size: 1rem; font-weight: 700; line-height: 1.25; color: var(--qx-text); }
    .card-desc {
      font-size: 0.8rem;
      color: var(--qx-sub);
      line-height: 1.6;
      display: -webkit-box;
      -webkit-line-clamp: 2;
      -webkit-box-orient: vertical;
      overflow: hidden;
    }
    .card-footer {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 0.75rem;
      margin-top: auto;
      padding-top: 0.75rem;
      border-top: 1px solid var(--qx-border);
    }
    .card-price { display: flex; flex-direction: column; gap: 2px; }
    .card-price .price-main { font-family: 'Syne', sans-serif; font-size: 1.2rem; font-weight: 800; color: var(--qx-text); }
    .card-price .price-old { font-size: 0.72rem; color: var(--qx-muted); text-decoration: line-through; }
    .btn-add-cart {
      display: inline-flex;
      align-items: center;
      gap: 7px;
      padding: 9px 18px;
      border-radius: 8px;
      background: var(--qx-accent);
      color: #fff;
      font-family: 'Syne', sans-serif;
      font-weight: 700;
      font-size: 0.78rem;
      letter-spacing: 0.04em;
      border: none;
      cursor: pointer;
      transition: transform 0.2s, box-shadow 0.2s, background 0.2s;
      white-space: nowrap;
      flex-shrink: 0;
    }
    .btn-add-cart:hover { transform: translateY(-1px); box-shadow: 0 6px 20px rgba(66,133,244,.35); }
    .btn-add-cart:active { transform: scale(0.97); }
    .btn-add-cart.added { background: #10b981; }
    /* product card button — desktop: text দেখাবে, mobile: শুধু icon */
    .product-card .btn-add-cart .btn-label { display: inline; }
    @media (max-width: 768px) {
      .product-card .btn-add-cart .btn-label { display: none; }
      .product-card .btn-add-cart { padding: 9px 11px; gap: 0; }
      .product-card .btn-add-cart svg { width: 16px; height: 16px; }
    }

    /* ══════════════════════════════════════════════════
       FEATURED BANNER
    ══════════════════════════════════════════════════ */

    /* ══════════════════════════════════════════════════
       BOTTOM NAVIGATION
    ══════════════════════════════════════════════════ */
    .bottom-nav {
      position: fixed;
      bottom: 0; left: 0; right: 0;
      height: 50px;
      background: rgba(13,17,23,0.94);
      backdrop-filter: blur(20px);
      border-top: 1px solid var(--qx-border);
      display: flex;
      align-items: stretch;
      z-index: 600;
      padding: 0 max(16px, env(safe-area-inset-left));
      padding-bottom: env(safe-area-inset-bottom, 0);
    }
    .nav-item {
      flex: 1;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      gap: 4px;
      cursor: pointer;
      padding: 8px 4px 10px;
      border: none;
      background: none;
      color: var(--qx-sub);
      font-family: 'DM Sans', sans-serif;
      font-size: 0.65rem;
      letter-spacing: 0.06em;
      text-transform: uppercase;
      font-weight: 500;
      transition: color 0.22s;
      position: relative;
      text-decoration: none;
    }
    .nav-item svg { transition: stroke 0.22s; }
    .nav-item.active { color: var(--qx-accent); }
    .nav-item.active svg { stroke: var(--qx-accent); }
    .nav-item:hover { color: var(--qx-text); }
    .nav-cart-badge {
      position: absolute;
      top: 8px;
      left: calc(50% + 6px);
      min-width: 17px;
      height: 17px;
      border-radius: 999px;
      background: var(--qx-accent);
      color: #fff;
      font-size: 0.6rem;
      font-weight: 800;
      display: flex;
      align-items: center;
      justify-content: center;
      padding: 0 4px;
      border: 2px solid var(--qx-bg);
      transform: scale(0);
      transition: transform 0.2s cubic-bezier(0.34,1.56,0.64,1);
    }
    .nav-cart-badge.show { transform: scale(1); }
    .nav-item.active::after {
      content: '';
      position: absolute;
      bottom: 5px;
      width: 4px; height: 4px;
      border-radius: 50%;
      background: var(--qx-accent);
    }

    /* ══════════════════════════════════════════════════
       CART DRAWER
    ══════════════════════════════════════════════════ */
    .cart-overlay {
      position: fixed;
      inset: 0;
      background: rgba(0,0,0,.55);
      backdrop-filter: blur(3px);
      z-index: 700;
      opacity: 0;
      pointer-events: none;
      transition: opacity 0.3s ease;
    }
    .cart-overlay.open { opacity: 1; pointer-events: all; }
    .cart-drawer {
      position: fixed;
      top: 0; right: 0;
      height: 100%;
      width: min(420px, 100vw);
      background: var(--qx-surface);
      border-left: 1px solid var(--qx-border);
      z-index: 800;
      display: flex;
      flex-direction: column;
      transform: translateX(100%);
      transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    }
    .cart-drawer.open { transform: translateX(0); }
    .cart-header {
      padding: 1.5rem 1.5rem 1.25rem;
      border-bottom: 1px solid var(--qx-border);
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-shrink: 0;
    }
    .cart-header h2 { font-family: 'Syne', sans-serif; font-size: 1.1rem; font-weight: 800; }
    .cart-close {
      width: 36px; height: 36px;
      border-radius: 8px;
      background: var(--qx-bg);
      border: 1px solid var(--qx-border);
      color: var(--qx-sub);
      display: flex;
      align-items: center;
      justify-content: center;
      cursor: pointer;
      transition: border-color 0.2s, color 0.2s;
    }
    .cart-close:hover { border-color: var(--qx-accent); color: var(--qx-accent); }
    .cart-items {
      flex: 1;
      overflow-y: auto;
      padding: 1.25rem 1.5rem;
      scrollbar-width: thin;
      scrollbar-color: var(--qx-border) transparent;
    }
    .cart-empty {
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      height: 100%;
      color: var(--qx-sub);
      gap: 1rem;
      text-align: center;
    }
    .cart-empty-icon { font-size: 3rem; opacity: 0.4; }
    .cart-empty p { font-size: 0.9rem; }
    .cart-item {
      display: flex;
      gap: 1rem;
      padding: 1rem 0;
      border-bottom: 1px solid var(--qx-border);
    }
    .cart-item:last-child { border-bottom: none; }
    .cart-item-img {
      width: 64px; height: 64px;
      border-radius: 10px;
      background: var(--qx-bg);
      border: 1px solid var(--qx-border);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.6rem;
      flex-shrink: 0;
      overflow: hidden;
    }
    .cart-item-img img { width: 100%; height: 100%; object-fit: cover; }
    .cart-item-info { flex: 1; min-width: 0; }
    .cart-item-name { font-family: 'Syne', sans-serif; font-size: 0.88rem; font-weight: 700; margin-bottom: 4px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
    .cart-item-price { font-size: 0.8rem; color: var(--qx-accent); font-weight: 600; }
    .cart-item-controls { display: flex; align-items: center; gap: 8px; margin-top: 8px; }
    .qty-btn {
      width: 26px; height: 26px;
      border-radius: 6px;
      background: var(--qx-bg);
      border: 1px solid var(--qx-border);
      color: var(--qx-text);
      font-size: 1rem;
      font-weight: 700;
      display: flex;
      align-items: center;
      justify-content: center;
      cursor: pointer;
      transition: border-color 0.2s;
    }
    .qty-btn:hover { border-color: var(--qx-accent); }
    .qty-num { font-family: 'Syne', sans-serif; font-size: 0.85rem; font-weight: 700; min-width: 20px; text-align: center; }
    .cart-item-del {
      flex-shrink: 0;
      width: 28px; height: 28px;
      border-radius: 6px;
      background: none;
      border: 1px solid transparent;
      color: var(--qx-sub);
      cursor: pointer;
      display: flex;
      align-items: center;
      justify-content: center;
      transition: border-color 0.2s, color 0.2s;
      margin-left: auto;
    }
    .cart-item-del:hover { border-color: #ef4444; color: #ef4444; }
    .cart-footer {
      padding: 1.25rem 1.5rem;
      border-top: 1px solid var(--qx-border);
      background: var(--qx-bg);
      flex-shrink: 0;
    }
    .cart-totals { display: flex; flex-direction: column; gap: 6px; margin-bottom: 1.25rem; }
    .cart-total-row {
      display: flex;
      align-items: center;
      justify-content: space-between;
      font-size: 0.82rem;
      color: var(--qx-sub);
    }
    .cart-total-row.grand {
      font-family: 'Syne', sans-serif;
      font-size: 1rem;
      font-weight: 800;
      color: var(--qx-text);
      margin-top: 4px;
      padding-top: 8px;
      border-top: 1px solid var(--qx-border);
    }
    .btn-checkout {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 10px;
      width: 100%;
      padding: 14px 24px;
      border-radius: 10px;
      background: var(--qx-accent);
      color: #fff;
      font-family: 'Syne', sans-serif;
      font-weight: 700;
      font-size: 0.9rem;
      letter-spacing: 0.04em;
      border: none;
      cursor: pointer;
      transition: transform 0.2s, box-shadow 0.2s;
    }
    .btn-checkout:hover { transform: translateY(-1px); box-shadow: 0 8px 24px rgba(66,133,244,.35); }

    /* ══════════════════════════════════════════════════
       CHECKOUT BOTTOM SHEET MODAL
    ══════════════════════════════════════════════════ */
    .checkout-overlay {
      position: fixed;
      inset: 0;
      background: rgba(0,0,0,.65);
      backdrop-filter: blur(4px);
      z-index: 900;
      opacity: 0;
      pointer-events: none;
      transition: opacity 0.3s ease;
    }
    .checkout-overlay.open { opacity: 1; pointer-events: all; }

    .checkout-sheet {
      position: fixed;
      bottom: 0; left: 0; right: 0;
      max-height: 92vh;
      background: var(--qx-surface);
      border-top: 1px solid var(--qx-border);
      border-radius: 24px 24px 0 0;
      z-index: 1000;
      display: flex;
      flex-direction: column;
      transform: translateY(100%);
      transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
      overflow: hidden;
    }
    .checkout-sheet.open { transform: translateY(0); }

    /* drag handle */
    .sheet-handle {
      width: 40px; height: 4px;
      border-radius: 2px;
      background: var(--qx-muted);
      margin: 12px auto 0;
      flex-shrink: 0;
    }

    .sheet-header {
      padding: 1.25rem 1.5rem 1rem;
      border-bottom: 1px solid var(--qx-border);
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-shrink: 0;
    }
    .sheet-header h2 {
      font-family: 'Syne', sans-serif;
      font-size: 1.1rem;
      font-weight: 800;
      display: flex;
      align-items: center;
      gap: 10px;
    }
    .sheet-header h2 .sheet-step-badge {
      font-family: 'DM Sans', sans-serif;
      font-size: 0.65rem;
      font-weight: 700;
      letter-spacing: 0.12em;
      text-transform: uppercase;
      padding: 3px 10px;
      border-radius: 4px;
      background: rgba(66,133,244,.12);
      border: 1px solid rgba(66,133,244,.25);
      color: var(--qx-accent);
    }
    .sheet-close {
      width: 36px; height: 36px;
      border-radius: 8px;
      background: var(--qx-bg);
      border: 1px solid var(--qx-border);
      color: var(--qx-sub);
      display: flex;
      align-items: center;
      justify-content: center;
      cursor: pointer;
      transition: border-color 0.2s, color 0.2s;
      flex-shrink: 0;
    }
    .sheet-close:hover { border-color: var(--qx-accent); color: var(--qx-accent); }

    .sheet-body {
      flex: 1;
      overflow-y: auto;
      padding: 1.5rem;
      scrollbar-width: thin;
      scrollbar-color: var(--qx-border) transparent;
    }

    /* Order summary inside sheet */
    .checkout-summary {
      background: var(--qx-bg);
      border: 1px solid var(--qx-border);
      border-radius: 14px;
      padding: 1.1rem 1.25rem;
      margin-bottom: 1.75rem;
    }
    .checkout-summary-title {
      font-family: 'Syne', sans-serif;
      font-size: 0.78rem;
      font-weight: 700;
      letter-spacing: 0.1em;
      text-transform: uppercase;
      color: var(--qx-sub);
      margin-bottom: 0.85rem;
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .checkout-summary-title::after {
      content: '';
      flex: 1;
      height: 1px;
      background: var(--qx-border);
    }
    .checkout-summary-items { display: flex; flex-direction: column; gap: 8px; margin-bottom: 1rem; }
    .checkout-summary-item {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 1rem;
      font-size: 0.82rem;
    }
    .checkout-summary-item .si-name { color: var(--qx-text); font-weight: 500; }
    .checkout-summary-item .si-qty { color: var(--qx-sub); font-size: 0.75rem; }
    .checkout-summary-item .si-price { font-family: 'Syne', sans-serif; font-weight: 700; color: var(--qx-accent); white-space: nowrap; }
    .checkout-summary-divider { height: 1px; background: var(--qx-border); margin: 8px 0; }
    .checkout-summary-total {
      display: flex;
      align-items: center;
      justify-content: space-between;
      font-family: 'Syne', sans-serif;
      font-size: 1rem;
      font-weight: 800;
    }
    .checkout-summary-total .total-label { color: var(--qx-sub); font-size: 0.78rem; font-weight: 600; font-family: 'DM Sans', sans-serif; }
    .checkout-summary-total .total-amount { color: var(--qx-text); }
    .delivery-note {
      display: flex;
      align-items: center;
      gap: 6px;
      font-size: 0.75rem;
      color: var(--qx-success);
      margin-top: 8px;
      font-weight: 500;
    }

    /* Form fields */
    .form-section-label {
      font-family: 'Syne', sans-serif;
      font-size: 0.78rem;
      font-weight: 700;
      letter-spacing: 0.1em;
      text-transform: uppercase;
      color: var(--qx-sub);
      margin-bottom: 1rem;
      margin-top: 0.25rem;
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .form-section-label::after {
      content: '';
      flex: 1;
      height: 1px;
      background: var(--qx-border);
    }

    .form-grid {
      display: grid;
      gap: 1rem;
    }
    .form-grid-2 { grid-template-columns: 1fr 1fr; }

    .form-group { display: flex; flex-direction: column; gap: 6px; }
    .form-label {
      font-size: 0.75rem;
      font-weight: 600;
      color: var(--qx-sub);
      letter-spacing: 0.04em;
    }
    .form-label span.required { color: var(--qx-error); margin-left: 2px; }

    .form-input,
    .form-select,
    .form-textarea {
      width: 100%;
      background: var(--qx-bg);
      border: 1px solid var(--qx-border);
      border-radius: 10px;
      padding: 11px 14px;
      font-family: 'DM Sans', sans-serif;
      font-size: 0.88rem;
      color: var(--qx-text);
      outline: none;
      transition: border-color 0.22s, box-shadow 0.22s;
      appearance: none;
      -webkit-appearance: none;
    }
    .form-input::placeholder,
    .form-textarea::placeholder { color: var(--qx-muted); }
    .form-input:focus,
    .form-select:focus,
    .form-textarea:focus {
      border-color: var(--qx-accent);
      box-shadow: 0 0 0 3px rgba(66,133,244,.1);
    }
    .form-input.error,
    .form-select.error { border-color: var(--qx-error); }

    .form-select {
      background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%238b9ab2' stroke-width='2.5'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
      background-repeat: no-repeat;
      background-position: right 14px center;
      padding-right: 36px;
      cursor: pointer;
    }
    .form-select option { background: #0d1117; color: #e2e8f0; }

    .form-textarea {
      resize: vertical;
      min-height: 80px;
      line-height: 1.55;
    }

    .form-error-msg {
      font-size: 0.72rem;
      color: var(--qx-error);
      display: none;
    }
    .form-error-msg.show { display: block; }

    /* Phone prefix */
    .phone-wrap { position: relative; }
    .phone-prefix {
      position: absolute;
      left: 14px;
      top: 50%;
      transform: translateY(-50%);
      font-size: 0.88rem;
      color: var(--qx-sub);
      pointer-events: none;
      font-weight: 600;
    }
    .phone-wrap .form-input { padding-left: 52px; }

    /* Payment method selector */
    .payment-options {
      display: flex;
      gap: 10px;
      flex-wrap: wrap;
    }
    .payment-opt {
      flex: 1;
      min-width: 100px;
      padding: 12px;
      border-radius: 10px;
      border: 1px solid var(--qx-border);
      background: var(--qx-bg);
      cursor: pointer;
      transition: border-color 0.22s, background 0.22s;
      display: flex;
      flex-direction: column;
      align-items: center;
      gap: 6px;
    }
    .payment-opt:hover { border-color: var(--qx-accent); }
    .payment-opt.selected {
      border-color: var(--qx-accent);
      background: rgba(66,133,244,.07);
    }
    .payment-opt-icon { font-size: 1.4rem; }
    .payment-opt-name {
      font-family: 'Syne', sans-serif;
      font-size: 0.72rem;
      font-weight: 700;
      color: var(--qx-text);
    }
    .payment-opt-sub {
      font-size: 0.65rem;
      color: var(--qx-sub);
      text-align: center;
      line-height: 1.4;
    }

    /* Terms checkbox */
    .terms-row {
      display: flex;
      align-items: flex-start;
      gap: 10px;
      margin-top: 0.5rem;
    }
    .terms-row input[type="checkbox"] {
      width: 16px;
      height: 16px;
      accent-color: var(--qx-accent);
      flex-shrink: 0;
      margin-top: 2px;
      cursor: pointer;
    }
    .terms-row label {
      font-size: 0.78rem;
      color: var(--qx-sub);
      line-height: 1.55;
      cursor: pointer;
    }
    .terms-row label a { color: var(--qx-accent); text-decoration: none; }

    /* Sheet footer */
    .sheet-footer {
      padding: 1.25rem 1.5rem;
      border-top: 1px solid var(--qx-border);
      background: var(--qx-bg);
      flex-shrink: 0;
      padding-bottom: max(1.25rem, env(safe-area-inset-bottom));
    }
    .btn-place-order {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 10px;
      width: 100%;
      padding: 15px 24px;
      border-radius: 12px;
      background: linear-gradient(135deg, var(--qx-accent), #3b6fe0);
      color: #fff;
      font-family: 'Syne', sans-serif;
      font-weight: 700;
      font-size: 0.95rem;
      letter-spacing: 0.04em;
      border: none;
      cursor: pointer;
      transition: transform 0.2s, box-shadow 0.2s, opacity 0.2s;
      position: relative;
      overflow: hidden;
    }
    .btn-place-order:hover:not(:disabled) {
      transform: translateY(-1px);
      box-shadow: 0 10px 30px rgba(66,133,244,.4);
    }
    .btn-place-order:disabled { opacity: 0.6; cursor: not-allowed; }
    .btn-place-order .btn-spinner {
      width: 18px; height: 18px;
      border: 2px solid rgba(255,255,255,.3);
      border-top-color: #fff;
      border-radius: 50%;
      animation: spin 0.7s linear infinite;
      display: none;
    }
    .btn-place-order.loading .btn-spinner { display: block; }
    .btn-place-order.loading .btn-text { display: none; }
    @keyframes spin { to { transform: rotate(360deg); } }

    /* Success state */
    .order-success {
      display: none;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      text-align: center;
      padding: 3rem 2rem;
      gap: 1.25rem;
    }
    .order-success.show { display: flex; }
    .success-icon {
      width: 72px; height: 72px;
      border-radius: 50%;
      background: rgba(16,185,129,.12);
      border: 2px solid rgba(16,185,129,.3);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 2rem;
    }
    .success-title {
      font-family: 'Syne', sans-serif;
      font-size: 1.4rem;
      font-weight: 800;
    }
    .success-sub {
      font-size: 0.85rem;
      color: var(--qx-sub);
      line-height: 1.65;
      max-width: 280px;
    }
    .success-order-id {
      font-family: 'DM Sans', monospace;
      font-size: 0.75rem;
      padding: 6px 16px;
      border-radius: 6px;
      background: var(--qx-bg);
      border: 1px solid var(--qx-border);
      color: var(--qx-sub);
      letter-spacing: 0.08em;
    }

    /* ══════════════════════════════════════════════════
       TOAST NOTIFICATION
    ══════════════════════════════════════════════════ */
    .toast-wrap {
      position: fixed;
      top: 70px; right: 16px;
      z-index: 9000;
      display: flex;
      flex-direction: column;
      gap: 8px;
      pointer-events: none;
    }
    .toast {
      padding: 12px 18px;
      border-radius: 10px;
      background: var(--qx-surface);
      border: 1px solid var(--qx-border);
      font-size: 0.82rem;
      color: var(--qx-text);
      box-shadow: 0 8px 24px rgba(0,0,0,.4);
      transform: translateX(120%);
      transition: transform 0.3s cubic-bezier(0.34,1.56,0.64,1), opacity 0.3s;
      opacity: 0;
      display: flex;
      align-items: center;
      gap: 8px;
      max-width: 280px;
    }
    .toast.show { transform: translateX(0); opacity: 1; }
    .toast-icon { font-size: 1.1rem; }

    /* ══════════════════════════════════════════════════
       RESPONSIVE
    ══════════════════════════════════════════════════ */
    @media (max-width: 900px) {
      .product-grid { grid-template-columns: repeat(2, 1fr); }
      .form-grid-2 { grid-template-columns: 1fr; }
    }

    @media (max-width: 600px) {
      .topbar { height: 56px; }
      .topbar-inner { gap: 8px; padding: 0 12px; }
      .topbar-search { flex: 1; min-width: 0; }
      .topbar-search input {
        width: 100%;
        padding-left: 32px;
        font-size: 0.82rem;
      }
      .product-grid { grid-template-columns: repeat(2, 1fr); gap: 0.75rem; }
      .checkout-sheet { max-height: 95vh; }
      .card-body { padding: 0.9rem; gap: 0.5rem; }
      .card-name { font-size: 0.88rem; }
      .card-desc { font-size: 0.75rem; -webkit-line-clamp: 2; }
      .card-price .price-main { font-size: 1rem; }
      .card-footer { gap: 0.5rem; padding-top: 0.6rem; }
      .filter-btn { padding: 12px 14px; font-size: 0.75rem; }
      .shop-hero { padding: 2.5rem 1rem 2rem; }
      .shop-hero h1 { font-size: clamp(1.8rem, 7vw, 2.8rem); }
      .shop-hero-sub { font-size: 0.85rem; margin-bottom: 1.5rem; }
      .filter-bar { padding: 0 0.75rem; }
      body { padding-bottom: 64px; }
    }

    @media (max-width: 380px) {
      .product-grid { grid-template-columns: 1fr 1fr; gap: 0.5rem; }
      .card-img-placeholder { font-size: 2.5rem; }
      .card-body { padding: 0.75rem; }
    }

    @media (min-width: 769px) {
      .bottom-nav { max-width: 480px; left: 50%; transform: translateX(-50%); border-radius: 20px 20px 0 0; }
      .checkout-sheet { max-width: 560px; left: 50%; transform: translateX(-50%) translateY(100%); border-radius: 24px 24px 0 0; }
      .checkout-sheet.open { transform: translateX(-50%) translateY(0); }
    }

    /* Safe area for notch phones */
    @supports (padding: max(0px)) {
      .topbar { padding-top: env(safe-area-inset-top, 0); height: calc(60px + env(safe-area-inset-top, 0)); }
      .filter-bar { top: calc(60px + env(safe-area-inset-top, 0)); }
    }