/* ============================================================
   BatteryDada.com — Main Stylesheet
   Light, minimal, fast
   ============================================================ */

:root {
  --primary:     #1a6fc4;
  --primary-dk:  #145aa3;
  --primary-lt:  #e8f1fb;
  --accent:      #f97316;
  --accent-lt:   #fff4ed;
  --success:     #16a34a;
  --danger:      #dc2626;
  --warning:     #f59e0b;
  --dark:        #1e293b;
  --gray-900:    #0f172a;
  --gray-700:    #374151;
  --gray-500:    #6b7280;
  --gray-300:    #d1d5db;
  --gray-100:    #f3f4f6;
  --white:       #ffffff;
  --border:      #e5e7eb;
  --shadow-sm:   0 1px 3px rgba(0,0,0,.06),0 1px 2px rgba(0,0,0,.04);
  --shadow:      0 4px 12px rgba(0,0,0,.08);
  --shadow-lg:   0 10px 30px rgba(0,0,0,.12);
  --radius:      10px;
  --radius-lg:   16px;
  --transition:  all .2s ease;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  font-size: 15px;
  line-height: 1.6;
  color: var(--gray-700);
  background: #f8fafc;
}

a { color: var(--primary); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--primary-dk); }
img { max-width: 100%; display: block; }

/* ============================================================
   TOP BAR
   ============================================================ */
.top-bar {
  background: var(--dark);
  color: #cbd5e1;
  font-size: 12.5px;
  padding: 6px 0;
}
.top-bar a { color: #cbd5e1; }
.top-bar a:hover { color: var(--white); }
.top-bar .top-bar-links a { margin-left: 16px; }

/* ============================================================
   HEADER
   ============================================================ */
.site-header {
  background: var(--white);
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 0;
  z-index: 1000;
}
.header-inner {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 12px 0;
}
.site-logo { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.site-logo img { height: 48px; width: auto; }
.logo-text { font-size: 22px; font-weight: 700; color: var(--primary); line-height: 1.1; }
.logo-text span { color: var(--accent); }
.logo-tagline { font-size: 10px; color: var(--gray-500); letter-spacing: .5px; }

.header-search { flex: 1; max-width: 500px; }
.search-form { display: flex; gap: 0; }
.search-form input {
  flex: 1; border: 2px solid var(--border); border-right: none;
  padding: 10px 16px; border-radius: var(--radius) 0 0 var(--radius);
  font-size: 14px; outline: none; transition: var(--transition);
}
.search-form input:focus { border-color: var(--primary); }
.search-form button {
  background: var(--primary); color: var(--white); border: none;
  padding: 10px 20px; border-radius: 0 var(--radius) var(--radius) 0;
  cursor: pointer; font-size: 15px; transition: var(--transition);
}
.search-form button:hover { background: var(--primary-dk); }

.header-actions { display: flex; align-items: center; gap: 8px; margin-left: auto; }
.header-action-btn {
  display: flex; align-items: center; gap: 6px;
  padding: 8px 14px; border-radius: var(--radius);
  color: var(--gray-700); font-size: 13px; font-weight: 500;
  border: 1px solid transparent; transition: var(--transition);
}
.header-action-btn:hover { background: var(--gray-100); color: var(--primary); }
.header-action-btn i { font-size: 16px; }
.cart-btn {
  background: var(--primary); color: var(--white) !important;
  border-color: var(--primary) !important;
}
.cart-btn:hover { background: var(--primary-dk) !important; border-color: var(--primary-dk) !important; }
.cart-count {
  background: var(--accent); color: var(--white); border-radius: 50%;
  width: 18px; height: 18px; font-size: 10px; font-weight: 700;
  display: inline-flex; align-items: center; justify-content: center;
  margin-left: 2px;
}

/* ============================================================
   NAVIGATION
   ============================================================ */
.main-nav {
  background: var(--primary);
}
.main-nav .nav-inner {
  display: flex; align-items: stretch;
}
.main-nav .nav-link {
  color: rgba(255,255,255,.9); padding: 13px 18px; font-size: 13.5px;
  font-weight: 500; display: flex; align-items: center; gap: 5px;
  white-space: nowrap; transition: var(--transition);
  border-bottom: 2px solid transparent;
}
.main-nav .nav-link:hover, .main-nav .nav-link.active {
  background: rgba(255,255,255,.12); color: var(--white);
  border-bottom-color: var(--accent);
}
.main-nav .nav-link i { font-size: 14px; }

/* Dropdown */
.nav-item { position: relative; }
.nav-dropdown {
  display: none; position: absolute; top: 100%; left: 0;
  background: var(--white); border-radius: 0 0 var(--radius) var(--radius);
  box-shadow: var(--shadow-lg); min-width: 220px; z-index: 999;
  border-top: 3px solid var(--primary);
}
.nav-item:hover .nav-dropdown { display: block; }
.nav-dropdown a {
  display: block; padding: 10px 20px; color: var(--gray-700); font-size: 13.5px;
  border-bottom: 1px solid var(--gray-100); transition: var(--transition);
}
.nav-dropdown a:hover { background: var(--primary-lt); color: var(--primary); padding-left: 26px; }
.nav-dropdown a:last-child { border-bottom: none; }

/* ============================================================
   HERO / SLIDER
   ============================================================ */
.hero-section { background: var(--primary-lt); padding: 0; overflow: hidden; }
.hero-slide {
  display: flex; align-items: center;
  min-height: 320px; padding: 40px 0;
}
.hero-content { max-width: 540px; }
.hero-content h1 {
  font-size: clamp(24px,4vw,40px); font-weight: 700;
  color: var(--dark); line-height: 1.2; margin-bottom: 12px;
}
.hero-content h1 span { color: var(--primary); }
.hero-content p { font-size: 16px; color: var(--gray-500); margin-bottom: 24px; }
.hero-btns { display: flex; gap: 12px; flex-wrap: wrap; }
.hero-image img { max-height: 280px; object-fit: contain; }

/* ============================================================
   QUICK BATTERY FINDER
   ============================================================ */
.qbf-section {
  background: var(--white);
  box-shadow: var(--shadow);
  border-radius: var(--radius-lg);
  margin: -40px auto 40px;
  position: relative;
  z-index: 10;
  max-width: 1100px;
}
.qbf-inner { padding: 28px 32px; }
.qbf-title {
  font-size: 18px; font-weight: 700; color: var(--dark);
  margin-bottom: 6px; display: flex; align-items: center; gap: 8px;
}
.qbf-title i { color: var(--primary); }
.qbf-subtitle { color: var(--gray-500); font-size: 13.5px; margin-bottom: 20px; }
.qbf-tabs { display: flex; gap: 4px; margin-bottom: 20px; flex-wrap: wrap; }
.qbf-tab {
  padding: 7px 16px; border-radius: 20px; font-size: 13px; font-weight: 500;
  cursor: pointer; border: 2px solid var(--border); background: var(--white);
  color: var(--gray-500); transition: var(--transition);
}
.qbf-tab.active, .qbf-tab:hover {
  background: var(--primary); color: var(--white); border-color: var(--primary);
}
.qbf-tab i { margin-right: 5px; }
.qbf-form { display: flex; gap: 10px; flex-wrap: wrap; align-items: flex-end; }
.qbf-form .form-group { flex: 1; min-width: 140px; }
.qbf-form label { font-size: 12px; font-weight: 600; color: var(--gray-500); text-transform: uppercase; letter-spacing: .4px; margin-bottom: 5px; display: block; }
.qbf-form select {
  width: 100%; padding: 10px 14px; border: 2px solid var(--border);
  border-radius: var(--radius); font-size: 14px; color: var(--gray-700);
  background: var(--white); cursor: pointer; transition: var(--transition);
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%236b7280' viewBox='0 0 16 16'%3E%3Cpath d='M7.247 11.14 2.451 5.658C1.885 5.013 2.345 4 3.204 4h9.592a1 1 0 0 1 .753 1.659l-4.796 5.48a1 1 0 0 1-1.506 0z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 36px;
}
.qbf-form select:focus { border-color: var(--primary); outline: none; }
.qbf-form select:disabled { background-color: var(--gray-100); cursor: not-allowed; opacity: .6; }
.qbf-btn {
  background: var(--accent); color: var(--white); border: none;
  padding: 12px 28px; border-radius: var(--radius); font-size: 15px;
  font-weight: 600; cursor: pointer; transition: var(--transition);
  white-space: nowrap; display: flex; align-items: center; gap: 8px;
  flex-shrink: 0;
}
.qbf-btn:hover { background: #ea6508; transform: translateY(-1px); }

/* Sidebar QBF */
.qbf-sidebar {
  background: var(--primary-lt);
  border: 2px solid var(--primary);
  border-radius: var(--radius);
  padding: 20px;
}
.qbf-sidebar .qbf-title { font-size: 15px; }
.qbf-sidebar .qbf-form { flex-direction: column; }
.qbf-sidebar .qbf-form .form-group { min-width: 100%; }

/* ============================================================
   SECTION HEADINGS
   ============================================================ */
.section-heading {
  text-align: center; margin-bottom: 36px;
}
.section-heading h2 {
  font-size: clamp(20px, 3vw, 28px); font-weight: 700; color: var(--dark);
  margin-bottom: 8px;
}
.section-heading p { color: var(--gray-500); font-size: 15px; }
.section-divider {
  width: 50px; height: 4px; background: var(--primary);
  border-radius: 2px; margin: 10px auto 0;
}

/* ============================================================
   CATEGORY CARDS
   ============================================================ */
.category-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
  gap: 16px;
}
.cat-card {
  background: var(--white); border-radius: var(--radius);
  padding: 22px 10px; text-align: center;
  box-shadow: var(--shadow-sm); border: 2px solid transparent;
  transition: var(--transition); cursor: pointer;
}
.cat-card:hover {
  border-color: var(--primary); box-shadow: var(--shadow);
  transform: translateY(-3px);
}
.cat-icon {
  width: 52px; height: 52px; background: var(--primary-lt);
  border-radius: 50%; display: flex; align-items: center; justify-content: center;
  margin: 0 auto 12px; font-size: 22px; color: var(--primary);
  transition: var(--transition);
}
.cat-card:hover .cat-icon { background: var(--primary); color: var(--white); }
.cat-card h4 { font-size: 13px; font-weight: 600; color: var(--gray-700); line-height: 1.3; }

/* ============================================================
   PRODUCT CARDS
   ============================================================ */
.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 20px;
}
.product-card {
  background: var(--white); border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm); overflow: hidden;
  transition: var(--transition); border: 1px solid var(--border);
  display: flex; flex-direction: column;
}
.product-card:hover { box-shadow: var(--shadow); transform: translateY(-4px); }
.product-badge {
  position: absolute; top: 10px; left: 10px; z-index: 2;
}
.badge-sale {
  background: var(--danger); color: var(--white);
  padding: 2px 8px; border-radius: 4px; font-size: 11px; font-weight: 700;
}
.badge-featured {
  background: var(--accent); color: var(--white);
  padding: 2px 8px; border-radius: 4px; font-size: 11px; font-weight: 700;
}
.product-img-wrap {
  position: relative; background: var(--gray-100);
  padding: 16px; aspect-ratio: 1;
  display: flex; align-items: center; justify-content: center;
}
.product-img-wrap img {
  width: 100%; height: 160px; object-fit: contain;
}
.product-wishlist {
  position: absolute; top: 10px; right: 10px;
  background: var(--white); border: none; border-radius: 50%;
  width: 34px; height: 34px; display: flex; align-items: center; justify-content: center;
  cursor: pointer; color: var(--gray-300); font-size: 16px;
  box-shadow: var(--shadow-sm); transition: var(--transition);
}
.product-wishlist:hover { color: var(--danger); }
.product-info { padding: 14px 16px; flex: 1; display: flex; flex-direction: column; }
.product-brand { font-size: 11px; font-weight: 600; color: var(--primary); text-transform: uppercase; letter-spacing: .5px; margin-bottom: 4px; }
.product-name { font-size: 14px; font-weight: 600; color: var(--dark); line-height: 1.4; margin-bottom: 6px; }
.product-name a { color: inherit; }
.product-name a:hover { color: var(--primary); }
.product-desc { font-size: 12.5px; color: var(--gray-500); margin-bottom: 8px; line-height: 1.4; }
.product-rating { display: flex; align-items: center; gap: 5px; margin-bottom: 8px; font-size: 12px; }
.product-rating .stars i { font-size: 11px; }
.product-rating .count { color: var(--gray-500); }
.product-warranty {
  font-size: 12px; color: var(--success); font-weight: 500;
  margin-bottom: 10px; display: flex; align-items: center; gap: 4px;
}
.product-price-row { display: flex; align-items: center; gap: 8px; margin-bottom: 12px; flex-wrap: wrap; }
.price-current { font-size: 18px; font-weight: 700; color: var(--dark); }
.price-original { font-size: 13px; color: var(--gray-500); text-decoration: line-through; }
.price-discount { font-size: 12px; color: var(--success); font-weight: 600; }
.btn-add-cart {
  background: var(--primary); color: var(--white); border: none;
  padding: 10px; border-radius: var(--radius); font-size: 13px; font-weight: 600;
  cursor: pointer; width: 100%; transition: var(--transition);
  display: flex; align-items: center; justify-content: center; gap: 6px;
  margin-top: auto;
}
.btn-add-cart:hover { background: var(--primary-dk); }

/* ============================================================
   BUTTONS
   ============================================================ */
.btn { display: inline-flex; align-items: center; gap: 7px; padding: 10px 22px; border-radius: var(--radius); font-size: 14px; font-weight: 600; cursor: pointer; transition: var(--transition); border: 2px solid transparent; }
.btn-primary { background: var(--primary); color: var(--white); border-color: var(--primary); }
.btn-primary:hover { background: var(--primary-dk); color: var(--white); border-color: var(--primary-dk); }
.btn-accent { background: var(--accent); color: var(--white); border-color: var(--accent); }
.btn-accent:hover { background: #ea6508; color: var(--white); border-color: #ea6508; }
.btn-outline { background: transparent; color: var(--primary); border-color: var(--primary); }
.btn-outline:hover { background: var(--primary); color: var(--white); }
.btn-sm { padding: 7px 16px; font-size: 13px; }
.btn-lg { padding: 14px 30px; font-size: 16px; }

/* ============================================================
   TRUST BADGES
   ============================================================ */
.trust-bar {
  background: var(--white);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 20px 0;
}
.trust-items { display: flex; justify-content: space-around; flex-wrap: wrap; gap: 16px; }
.trust-item { display: flex; align-items: center; gap: 12px; }
.trust-icon { font-size: 28px; color: var(--primary); flex-shrink: 0; }
.trust-text strong { display: block; font-size: 14px; font-weight: 700; color: var(--dark); }
.trust-text span { font-size: 12px; color: var(--gray-500); }

/* ============================================================
   BRAND LOGOS
   ============================================================ */
.brand-logos {
  display: flex; flex-wrap: wrap; justify-content: center;
  align-items: center; gap: 20px;
}
.brand-logo-item {
  background: var(--white); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 14px 24px;
  display: flex; align-items: center; justify-content: center;
  min-width: 110px; height: 60px;
  filter: grayscale(1); opacity: .6; transition: var(--transition);
}
.brand-logo-item:hover { filter: none; opacity: 1; box-shadow: var(--shadow); }
.brand-logo-item span { font-size: 15px; font-weight: 700; color: var(--gray-500); }

/* ============================================================
   PROMO BANNERS
   ============================================================ */
.promo-banner {
  border-radius: var(--radius-lg); padding: 28px 32px;
  display: flex; align-items: center; justify-content: space-between;
  gap: 20px; overflow: hidden; position: relative;
}
.promo-banner.blue { background: linear-gradient(135deg, #1a6fc4 0%, #1e40af 100%); color: var(--white); }
.promo-banner.orange { background: linear-gradient(135deg, #f97316 0%, #dc2626 100%); color: var(--white); }
.promo-banner h3 { font-size: 20px; font-weight: 700; margin-bottom: 6px; }
.promo-banner p { font-size: 14px; opacity: .85; margin-bottom: 16px; }

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer {
  background: var(--dark);
  color: #94a3b8;
  padding: 50px 0 0;
  margin-top: 60px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid #2d3748;
}
.footer-brand .logo-text { color: var(--white); }
.footer-brand p { font-size: 13.5px; line-height: 1.7; margin: 12px 0 16px; }
.footer-social { display: flex; gap: 10px; }
.footer-social a {
  width: 36px; height: 36px; border-radius: 50%;
  background: #2d3748; color: #94a3b8; display: flex;
  align-items: center; justify-content: center; font-size: 15px;
  transition: var(--transition);
}
.footer-social a:hover { background: var(--primary); color: var(--white); }
.footer-col h4 { color: var(--white); font-size: 14px; font-weight: 700; margin-bottom: 16px; text-transform: uppercase; letter-spacing: .5px; }
.footer-col ul { list-style: none; }
.footer-col ul li { margin-bottom: 9px; }
.footer-col ul li a { color: #94a3b8; font-size: 13.5px; transition: var(--transition); }
.footer-col ul li a:hover { color: var(--white); padding-left: 4px; }
.footer-bottom {
  padding: 16px 0; display: flex; justify-content: space-between;
  align-items: center; font-size: 12.5px; flex-wrap: wrap; gap: 8px;
}
.footer-bottom a { color: #94a3b8; }
.footer-bottom a:hover { color: var(--white); }

/* ============================================================
   SECTIONS
   ============================================================ */
.section { padding: 56px 0; }
.section-sm { padding: 36px 0; }
.bg-white { background: var(--white); }
.bg-light { background: var(--gray-100); }

/* ============================================================
   ALERTS & NOTIFICATIONS
   ============================================================ */
.alert { padding: 12px 16px; border-radius: var(--radius); margin-bottom: 16px; display: flex; align-items: center; gap: 10px; font-size: 14px; }
.alert-success { background: #d1fae5; color: #065f46; border-left: 4px solid var(--success); }
.alert-danger { background: #fee2e2; color: #991b1b; border-left: 4px solid var(--danger); }
.alert-info { background: var(--primary-lt); color: #1e40af; border-left: 4px solid var(--primary); }
.alert-warning { background: #fef3c7; color: #92400e; border-left: 4px solid var(--warning); }

/* ============================================================
   BREADCRUMB
   ============================================================ */
.breadcrumb-bar {
  background: var(--white); border-bottom: 1px solid var(--border);
  padding: 10px 0;
}
.breadcrumb { display: flex; align-items: center; gap: 6px; font-size: 13px; flex-wrap: wrap; }
.breadcrumb a { color: var(--gray-500); }
.breadcrumb a:hover { color: var(--primary); }
.breadcrumb .sep { color: var(--gray-300); }
.breadcrumb .current { color: var(--gray-700); font-weight: 500; }

/* ============================================================
   SIDEBAR
   ============================================================ */
.sidebar-widget {
  background: var(--white); border-radius: var(--radius);
  padding: 20px; box-shadow: var(--shadow-sm);
  margin-bottom: 20px; border: 1px solid var(--border);
}
.sidebar-widget h3 {
  font-size: 15px; font-weight: 700; color: var(--dark);
  margin-bottom: 16px; padding-bottom: 10px;
  border-bottom: 2px solid var(--primary-lt);
  display: flex; align-items: center; gap: 7px;
}
.sidebar-widget h3 i { color: var(--primary); }

/* ============================================================
   PRODUCT PAGE
   ============================================================ */
.product-detail-img {
  border-radius: var(--radius-lg); border: 1px solid var(--border);
  overflow: hidden; background: var(--gray-100);
  display: flex; align-items: center; justify-content: center;
  padding: 24px;
}
.product-detail-img img { max-height: 340px; object-fit: contain; }
.product-detail-info h1 { font-size: 22px; font-weight: 700; color: var(--dark); margin-bottom: 6px; }
.product-spec-table { width: 100%; font-size: 14px; }
.product-spec-table tr { border-bottom: 1px solid var(--border); }
.product-spec-table td { padding: 10px 0; }
.product-spec-table td:first-child { color: var(--gray-500); width: 45%; font-weight: 500; }

/* ============================================================
   CART
   ============================================================ */
.cart-item {
  background: var(--white); border-radius: var(--radius);
  padding: 16px; display: flex; align-items: center; gap: 16px;
  border: 1px solid var(--border); margin-bottom: 12px;
}
.cart-item-img { width: 80px; height: 80px; object-fit: contain; border-radius: 8px; background: var(--gray-100); padding: 8px; }
.cart-qty { display: flex; align-items: center; gap: 8px; }
.qty-btn {
  width: 30px; height: 30px; border-radius: 6px; border: 1px solid var(--border);
  background: var(--white); cursor: pointer; font-size: 16px; font-weight: 700;
  display: flex; align-items: center; justify-content: center; transition: var(--transition);
}
.qty-btn:hover { background: var(--primary); color: var(--white); border-color: var(--primary); }
.qty-input { width: 48px; text-align: center; border: 1px solid var(--border); border-radius: 6px; padding: 4px; font-size: 15px; font-weight: 600; }

/* ============================================================
   FORMS
   ============================================================ */
.form-control {
  width: 100%; padding: 10px 14px; border: 2px solid var(--border);
  border-radius: var(--radius); font-size: 14px; color: var(--gray-700);
  transition: var(--transition); background: var(--white);
}
.form-control:focus { border-color: var(--primary); outline: none; box-shadow: 0 0 0 3px rgba(26,111,196,.1); }
.form-label { font-size: 13px; font-weight: 600; color: var(--gray-700); margin-bottom: 5px; display: block; }
.form-group { margin-bottom: 16px; }

/* ============================================================
   UTILITIES
   ============================================================ */
.container { max-width: 1200px; margin: 0 auto; padding: 0 16px; }
.text-primary { color: var(--primary) !important; }
.text-accent { color: var(--accent) !important; }
.text-success { color: var(--success) !important; }
.text-danger { color: var(--danger) !important; }
.text-muted { color: var(--gray-500) !important; }
.fw-bold { font-weight: 700 !important; }
.fw-600 { font-weight: 600 !important; }
.text-center { text-align: center; }
.d-flex { display: flex; }
.align-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-2 { gap: 8px; }
.gap-3 { gap: 12px; }
.mt-1 { margin-top: 4px; } .mt-2 { margin-top: 8px; } .mt-3 { margin-top: 16px; }
.mb-1 { margin-bottom: 4px; } .mb-2 { margin-bottom: 8px; } .mb-3 { margin-bottom: 16px; }
.mb-4 { margin-bottom: 24px; } .mb-5 { margin-bottom: 32px; }
.p-3 { padding: 12px; } .p-4 { padding: 20px; } .p-5 { padding: 32px; }

/* ============================================================
   RESPONSIVE
   ============================================================ */

/* ============================================================
   SECONDARY NAV — Shop by Category + Trust Badges
   ============================================================ */
.secondary-nav {
  background: var(--white);
  border-bottom: 2px solid var(--border);
  position: relative;
  z-index: 200;
}
.secondary-nav-inner {
  display: flex;
  align-items: stretch;
  min-height: 52px;
}

/* ── Category Dropdown Button ── */
.cat-dropdown-wrap {
  position: relative;
  flex-shrink: 0;
}
.cat-dropdown-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 0 20px;
  height: 100%;
  min-height: 52px;
  background: #cc0000;
  color: #fff;
  border: none;
  cursor: pointer;
  font-size: 12.5px;
  font-weight: 700;
  letter-spacing: .4px;
  white-space: nowrap;
  transition: background .2s;
}
.cat-dropdown-btn:hover { background: #aa0000; }
.cat-dropdown-btn i:first-child { font-size: 14px; }
.cat-arrow {
  font-size: 10px;
  margin-left: 4px;
  transition: transform .25s ease;
}

.cat-dropdown-menu {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  background: var(--white);
  border: 1px solid var(--border);
  border-top: 3px solid #cc0000;
  border-radius: 0 0 var(--radius) var(--radius);
  box-shadow: var(--shadow-lg);
  min-width: 220px;
  z-index: 9999;
  padding: 4px 0;
}
.cat-dropdown-menu.open { display: block; }

.cat-drop-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 16px;
  color: var(--gray-700);
  font-size: 13.5px;
  transition: all .15s ease;
  border-bottom: 1px solid var(--gray-100);
}
.cat-drop-item:last-child { border-bottom: none; }
.cat-drop-item i {
  color: var(--primary);
  width: 16px;
  font-size: 13px;
  flex-shrink: 0;
}
.cat-drop-item:hover {
  background: var(--primary-lt);
  color: var(--primary);
  padding-left: 22px;
}
.cat-drop-all {
  font-weight: 700;
  color: var(--primary) !important;
  border-top: 2px solid var(--border) !important;
  margin-top: 2px;
}

/* ── Trust Badges ── */
.trust-badges {
  display: flex;
  align-items: center;
  flex: 1;
  justify-content: space-around;
  padding: 0 12px;
  gap: 0;
  border-left: 1px solid var(--border);
}
.trust-badge {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 8px 10px;
  border-radius: 6px;
  transition: all .2s ease;
  filter: grayscale(1);
  opacity: .5;
  flex-shrink: 0;
  cursor: default;
}
.trust-badge:hover {
  filter: grayscale(0);
  opacity: 1;
  background: var(--primary-lt);
  transform: translateY(-1px);
}
.trust-badge i {
  font-size: 19px;
  color: var(--primary);
  flex-shrink: 0;
}
.trust-badge span {
  font-size: 11px;
  font-weight: 600;
  color: var(--dark);
  line-height: 1.3;
  white-space: nowrap;
}

/* ============================================================
   MAIN NAV — fix overflow
   ============================================================ */
.main-nav {
  background: var(--primary);
  overflow: visible;
}
.main-nav .nav-inner {
  display: flex;
  align-items: stretch;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}
.main-nav .nav-inner::-webkit-scrollbar { display: none; }

/* ============================================================
   RESPONSIVE — Mobile First
   ============================================================ */

/* Tablet */
@media (max-width: 1024px) {
  .trust-badges { gap: 0; }
  .trust-badge { padding: 6px 7px; }
  .trust-badge span { display: none; }
  .trust-badge { opacity: .6; }
  .trust-badge:hover { opacity: 1; }
}

/* Small tablet */
@media (max-width: 768px) {
  /* Header */
  .header-inner {
    flex-wrap: wrap;
    gap: 10px;
    padding: 10px 0;
  }
  .header-search {
    order: 3;
    flex-basis: 100%;
    max-width: 100%;
  }
  .header-action-btn span { display: none; }

  /* Secondary nav */
  .trust-badges { display: none; }
  .secondary-nav-inner { min-height: 44px; }
  .cat-dropdown-btn {
    font-size: 12px;
    padding: 0 14px;
    min-height: 44px;
    width: 100%;
    justify-content: center;
  }
  .cat-dropdown-menu { width: 100%; left: 0; right: 0; }

  /* Main nav — horizontal scroll */
  .main-nav .nav-link {
    padding: 10px 13px;
    font-size: 12px;
    white-space: nowrap;
  }
  .main-nav .nav-link i.fa-chevron-down { display: none; }
  .nav-dropdown { display: none !important; }

  /* Hero */
  .hero-image { display: none; }
  .hero-content h1 { font-size: 22px; }

  /* QBF */
  .qbf-section { margin: -20px 12px 20px; }
  .qbf-inner { padding: 18px 14px; }
  .qbf-form { flex-direction: column; }
  .qbf-form .form-group { min-width: 100%; }

  /* Products */
  .product-grid { grid-template-columns: repeat(2,1fr); gap: 12px; }
  .category-grid { grid-template-columns: repeat(3,1fr); gap: 10px; }

  /* Promo banners */
  .promo-banner { flex-direction: column; text-align: center; padding: 20px; }
  .promo-banner div:last-child { display: none; }

  /* Footer */
  .footer-grid { grid-template-columns: 1fr; gap: 24px; }
  .trust-items { justify-content: flex-start; }

  /* Layout grids (checkout, product detail etc.) */
  .container > [style*="grid-template-columns:1fr 3"] { display: block !important; }
  .container > [style*="grid-template-columns:1fr 2"] { display: block !important; }
}

/* Mobile */
@media (max-width: 480px) {
  .container { padding: 0 12px; }

  .product-grid { grid-template-columns: repeat(2,1fr); gap: 8px; }
  .product-card { border-radius: 10px; }
  .product-img-wrap img { height: 120px; }
  .product-info { padding: 10px 12px; }
  .price-current { font-size: 15px; }
  .btn-add-cart { font-size: 12px; padding: 8px; }

  .category-grid { grid-template-columns: repeat(3,1fr); gap: 8px; }
  .cat-card { padding: 14px 6px; }
  .cat-icon { width: 42px; height: 42px; font-size: 18px; }
  .cat-card h4 { font-size: 11px; }

  .section { padding: 36px 0; }
  .section-heading h2 { font-size: 18px; }

  /* QBF on mobile */
  .qbf-section { margin: -16px 8px 16px; border-radius: 10px; }
  .qbf-inner { padding: 14px 12px; }
  .qbf-title { font-size: 15px; }
  .qbf-tabs { gap: 4px; }
  .qbf-tab { padding: 5px 10px; font-size: 11.5px; }
  .qbf-btn { padding: 11px 16px; font-size: 14px; }

  /* Stat grid (home how-it-works etc.) */
  [style*="grid-template-columns:repeat(3,1fr)"] { 
    display: grid !important;
    grid-template-columns: 1fr !important;
    gap: 12px !important;
  }
  [style*="grid-template-columns:1fr 1fr"] {
    grid-template-columns: 1fr !important;
  }

  .hero-content .btn-lg { padding: 10px 16px; font-size: 13px; }
  .hero-btns { gap: 8px; }

  .brand-logos { gap: 10px; }
  .brand-logo-item { min-width: 80px; height: 48px; padding: 10px 14px; }
}

/* Very small screens */
@media (max-width: 360px) {
  .product-grid { grid-template-columns: 1fr 1fr; gap: 6px; }
  .header-actions .cart-count { width: 16px; height: 16px; font-size: 9px; }
}

/* ============================================================
   COMPREHENSIVE MOBILE RESPONSIVE — BatteryDada
   Added for full mobile support
   ============================================================ */

/* ── HEADER MOBILE ── */
@media (max-width: 768px) {
  .site-header { padding: 8px 0; position: sticky; top: 0; z-index: 999; }
  .header-inner { gap: 8px; padding: 6px 0; }
  .site-logo .logo-text { font-size: 20px; }
  .site-logo .logo-tagline { font-size: 10px; }
  .header-search { order: 3; flex-basis: 100%; }
  .search-form input { font-size: 14px; padding: 9px 14px; }
  .header-actions { gap: 8px; }
  .header-action-btn { padding: 6px 8px; }

  /* Hamburger menu */
  .main-nav { overflow-x: auto; -webkit-overflow-scrolling: touch; }
  .nav-inner {
    display: flex;
    flex-wrap: nowrap;
    overflow-x: auto;
    padding: 0 8px;
    gap: 0;
    scrollbar-width: none;
  }
  .nav-inner::-webkit-scrollbar { display: none; }
  .nav-dropdown { display: none !important; }

  /* Secondary nav */
  .secondary-nav-inner {
    flex-wrap: nowrap;
    overflow-x: auto;
    justify-content: flex-start;
    padding: 0 8px;
  }
  .trust-badges { display: none; }

  /* Hero section */
  .hero-section { padding: 28px 0; }
  .hero-slide { flex-direction: column; gap: 16px; }
  .hero-content h1 { font-size: 20px; line-height: 1.3; }
  .hero-content p { font-size: 13.5px; }
  .hero-btns { flex-wrap: wrap; gap: 8px; }
  .hero-btns .btn { padding: 10px 16px; font-size: 13px; }
  .hero-image { display: none; }

  /* Products grid */
  .product-grid { grid-template-columns: repeat(2, 1fr); gap: 10px; }
  .product-card .product-img-wrap img { height: 130px; }
  .product-info h3 { font-size: 12.5px; }
  .price-current { font-size: 14px; }
  .price-old { font-size: 11px; }

  /* Category grid */
  .category-grid { grid-template-columns: repeat(3, 1fr); gap: 8px; }

  /* QBF */
  .qbf-tabs { flex-wrap: wrap; }
  .qbf-form { flex-direction: column; }
  .qbf-form .form-group { width: 100%; min-width: 100%; }

  /* Product detail page */
  .product-detail-grid,
  [style*="grid-template-columns:2fr 1fr"],
  [style*="grid-template-columns: 2fr 1fr"] {
    display: flex !important;
    flex-direction: column !important;
  }

  /* Checkout layout */
  [style*="grid-template-columns:1fr 360px"],
  [style*="grid-template-columns: 1fr 360px"] {
    display: flex !important;
    flex-direction: column !important;
  }

  /* Account page tabs */
  .account-tabs { overflow-x: auto; flex-wrap: nowrap !important; }
  .account-tabs a { white-space: nowrap; }

  /* Breadcrumb */
  .breadcrumb { font-size: 12px; flex-wrap: wrap; }

  /* Buttons */
  .btn-lg { padding: 11px 18px; font-size: 14px; }

  /* Sections */
  .section { padding: 32px 0; }
  .section-heading h2 { font-size: 20px; }

  /* Footer */
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 20px; }
  .footer-bottom { flex-direction: column; text-align: center; gap: 10px; }

  /* Promo banners */
  .promo-banners { grid-template-columns: 1fr !important; }

  /* Tables on mobile */
  .data-table-wrap, .table-responsive { overflow-x: auto; }
  table { min-width: 500px; }

  /* Inline style grid overrides */
  div[style*="grid-template-columns:1fr 1fr"],
  div[style*="grid-template-columns: 1fr 1fr"] {
    grid-template-columns: 1fr !important;
  }
  div[style*="grid-template-columns:repeat(2"],
  div[style*="grid-template-columns: repeat(2"] {
    grid-template-columns: 1fr 1fr !important;
  }
  div[style*="grid-template-columns:repeat(3"],
  div[style*="grid-template-columns: repeat(3"] {
    grid-template-columns: 1fr 1fr !important;
  }
  div[style*="grid-template-columns:repeat(4"],
  div[style*="grid-template-columns: repeat(4"] {
    grid-template-columns: 1fr 1fr !important;
  }
}

/* ── SMALL MOBILE (480px) ── */
@media (max-width: 480px) {
  .container { padding: 0 10px; }

  /* Header */
  .site-logo .logo-text { font-size: 18px; }
  .search-form input { padding: 8px 12px; font-size: 13px; }
  .search-form button { padding: 8px 14px; }

  /* Products */
  .product-grid { grid-template-columns: repeat(2, 1fr); gap: 8px; }
  .product-card { border-radius: 8px; }
  .product-img-wrap img { height: 110px; }
  .product-info { padding: 8px 10px; }
  .product-info h3 { font-size: 12px; line-height: 1.3; }
  .price-current { font-size: 13px; }
  .btn-add-cart { padding: 7px 10px; font-size: 11.5px; }
  .btn-wishlist { width: 30px; height: 30px; }

  /* Categories */
  .category-grid { grid-template-columns: repeat(3, 1fr); gap: 6px; }
  .cat-card { padding: 12px 6px; border-radius: 8px; }
  .cat-icon { width: 38px; height: 38px; font-size: 16px; }
  .cat-card h4 { font-size: 10.5px; }

  /* Hero */
  .hero-content h1 { font-size: 18px; }
  .hero-btns .btn { padding: 9px 14px; font-size: 12.5px; }

  /* Buttons */
  .btn-lg { padding: 10px 16px; font-size: 13.5px; }

  /* Section */
  .section { padding: 24px 0; }
  .section-heading { margin-bottom: 18px; }
  .section-heading h2 { font-size: 18px; }

  /* Stats */
  div[style*="grid-template-columns:repeat(4,1fr)"],
  div[style*="grid-template-columns: repeat(4,1fr)"] {
    grid-template-columns: 1fr 1fr !important;
    gap: 10px !important;
  }

  /* Footer */
  .footer-grid { grid-template-columns: 1fr; gap: 16px; }
  .footer-col h4 { font-size: 14px; }
  .footer-links a { font-size: 13px; }
  .footer-bottom { font-size: 12px; }

  /* Forms */
  .form-grid-2 { grid-template-columns: 1fr !important; }
  .form-control { font-size: 14px; padding: 9px 12px; }
  label.form-label { font-size: 12px; }

  /* Checkout */
  .cart-item { flex-direction: column; gap: 10px; }
  .cart-item-img { width: 80px; height: 80px; }

  /* Product page */
  .product-tabs-nav { overflow-x: auto; flex-wrap: nowrap !important; }
  .product-tabs-nav a { white-space: nowrap; font-size: 13px; padding: 10px 14px; }

  /* Reviews */
  .review-card { padding: 14px; }
  .star-rating { gap: 2px; }

  /* Page breadcrumb */
  .breadcrumb-bar { padding: 8px 0; }
  .breadcrumb { font-size: 11.5px; }

  /* Order success */
  .order-success-box { padding: 24px 16px; }
  .order-number { font-size: 16px; }

  /* Invoice */
  .inv-head { flex-direction: column; gap: 14px; }
  .inv-label { text-align: left; }
  .parties { grid-template-columns: 1fr !important; }
  .totals-wrap { justify-content: stretch; }
  .totals { width: 100%; }

  /* Warranty card */
  .info-grid { grid-template-columns: 1fr 1fr !important; }

  /* WhatsApp floating button */
  a[href*="wa.me"][style*="position:fixed"] {
    width: 48px !important;
    height: 48px !important;
    bottom: 16px !important;
    right: 16px !important;
  }
}

/* ── VERY SMALL (360px) ── */
@media (max-width: 360px) {
  .product-grid { grid-template-columns: 1fr 1fr; gap: 6px; }
  .category-grid { grid-template-columns: repeat(3, 1fr); gap: 4px; }
  .cat-icon { width: 32px; height: 32px; font-size: 14px; }
  .cat-card h4 { font-size: 10px; }
  .hero-content h1 { font-size: 16px; }
  .site-logo .logo-text { font-size: 16px; }
  .container { padding: 0 8px; }
}


/* ── SPECIFIC PAGE MOBILE FIXES ── */

/* Checkout grid */
@media (max-width: 768px) {
  .checkout-grid {
    grid-template-columns: 1fr !important;
  }
  .checkout-grid > div:last-child {
    order: -1; /* Order summary top on mobile */
  }
}

/* Product detail */
@media (max-width: 768px) {
  .product-detail-grid {
    grid-template-columns: 1fr !important;
  }
  /* Product images full width */
  .product-images { margin-bottom: 20px; }
  .product-main-img { max-height: 280px; }

  /* Product info */
  .product-title { font-size: 18px; }
  .product-price { font-size: 22px; }
  .product-actions { flex-direction: column; }
  .product-actions .btn { width: 100%; justify-content: center; }

  /* Tabs */
  .tab-nav { overflow-x: auto; flex-wrap: nowrap !important; }
  .tab-nav a { white-space: nowrap; font-size: 13px; padding: 10px 14px; }
}

/* Account page */
@media (max-width: 768px) {
  .account-grid {
    grid-template-columns: 1fr !important;
  }
  .account-sidebar { margin-bottom: 16px; }
}

/* Compare page */
@media (max-width: 768px) {
  .compare-table { overflow-x: auto; display: block; }
  .compare-table table { min-width: 500px; }
}

/* Invoice print */
@media (max-width: 768px) {
  .inv-body { padding: 16px !important; }
  .inv-head { flex-direction: column; gap: 16px; }
  .inv-label { text-align: left !important; }
  .parties { grid-template-columns: 1fr !important; }
  .totals-wrap { justify-content: stretch; }
  .totals { width: 100% !important; }
  .inv-foot { grid-template-columns: 1fr !important; }
}

/* Warranty card print */
@media (max-width: 768px) {
  .card-wrap { max-width: 100% !important; border-radius: 0; }
  .card-header { padding: 20px 16px; flex-direction: column; gap: 12px; }
  .card-body { padding: 16px !important; }
  .info-grid { grid-template-columns: 1fr 1fr !important; gap: 8px; }
  .card-footer { flex-direction: column; gap: 10px; padding: 14px 16px; }
}

/* QBF results page */
@media (max-width: 768px) {
  .qbf-results-grid { grid-template-columns: 1fr !important; }
}

/* Contact page */
@media (max-width: 768px) {
  .contact-grid { grid-template-columns: 1fr !important; }
}

/* Bulk order page */
@media (max-width: 768px) {
  .bulk-grid,
  div[style*="grid-template-columns:1fr 360px"],
  div[style*="grid-template-columns: 1fr 360px"] {
    grid-template-columns: 1fr !important;
  }
}

/* Track order */
@media (max-width: 480px) {
  .track-timeline { padding-left: 20px; }
}

/* Return request */
@media (max-width: 768px) {
  .return-grid { grid-template-columns: 1fr !important; }
}

/* Forgot password */
@media (max-width: 480px) {
  .auth-box { padding: 24px 16px; border-radius: 12px; }
}

/* Sticky cart total on mobile */
@media (max-width: 768px) {
  .cart-summary-sticky {
    position: static !important;
  }
}