/* =========================================
   Variables & Reset
========================================= */
:root {
  /* Default Colors - will be overridden by inline dynamic styles */
  --primary: #0f172a;       
  --primary-hover: #1e293b;
  --accent: #3b82f6;        
  --bg-light: #f8fafc;
  --bg-dark: #f1f5f9;
  --border: #e2e8f0;
  --text-dark: #334155;
  --text-light: #64748b;
  --price: #16a34a;
  --sale: #ef4444;
  --radius: 8px;
  --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
}

* { box-sizing: border-box; }

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--text-dark);
  background-color: var(--bg-light);
  margin: 0;
  padding: 0;
  line-height: 1.6;
}

.b2b-container { max-width: 1320px; margin: 0 auto; padding: 0 24px; }

/* =========================================
   Header Layout
========================================= */
.b2b-site-header {
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: 0 2px 10px rgba(0,0,0,0.02);
}

.b2b-header-inner { display: flex; align-items: center; justify-content: space-between; padding: 20px 0; gap: 40px; }

.b2b-logo a { font-size: 24px; font-weight: 800; color: var(--primary); text-decoration: none; letter-spacing: -0.5px; }

.b2b-header-search { flex-grow: 1; max-width: 600px; }
.b2b-header-search form { display: flex; width: 100%; }
.b2b-header-search .search-field { width: 100%; padding: 12px 20px; border: 2px solid var(--border); border-right: none; border-radius: var(--radius) 0 0 var(--radius); font-size: 15px; outline: none; font-family: 'Inter', sans-serif; transition: border-color 0.2s; }
.b2b-header-search .search-field:focus { border-color: var(--primary); }
.b2b-header-search button { padding: 0 24px; background: var(--primary); color: #fff; border: 2px solid var(--primary); border-radius: 0 var(--radius) var(--radius) 0; font-weight: 600; cursor: pointer; transition: background 0.2s; }
.b2b-header-search button:hover { background: var(--accent); }

.b2b-header-actions { display: flex; align-items: center; gap: 20px; }
.b2b-header-btn { display: flex; align-items: center; gap: 8px; color: var(--text-dark); text-decoration: none; font-weight: 600; font-size: 14px; transition: color 0.2s; }
.b2b-header-btn:hover { color: var(--accent); }
.b2b-cart-btn { position: relative; }
.b2b-cart-count { position: absolute; top: -8px; right: -8px; background: var(--sale); color: #fff; font-size: 11px; font-weight: 800; width: 18px; height: 18px; display: flex; align-items: center; justify-content: center; border-radius: 50%; }

.b2b-site-nav { border-top: 1px solid var(--border); }
.b2b-main-menu { list-style: none; padding: 0; margin: 0; display: flex; gap: 32px; }
.b2b-main-menu li a { display: block; padding: 16px 0; color: var(--text-dark); text-decoration: none; font-weight: 600; font-size: 15px; transition: color 0.2s; }
.b2b-main-menu li a:hover { color: var(--accent); }

/* =========================================
   Footer Layout
========================================= */
.b2b-site-footer {
  color: #ffffff;
  padding: 60px 0 0 0;
  margin-top: 60px;
}
.b2b-footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1.5fr; gap: 48px; margin-bottom: 40px; }
.b2b-footer-logo { font-size: 24px; font-weight: 800; margin-bottom: 16px; letter-spacing: -0.5px; }
.b2b-footer-desc { color: rgba(255,255,255,0.7); font-size: 14px; line-height: 1.8; }
.b2b-footer-title { font-size: 16px; font-weight: 700; margin: 0 0 20px 0; color: #ffffff; }
.b2b-footer-links, .b2b-footer-contact { list-style: none; padding: 0; margin: 0; }
.b2b-footer-links li, .b2b-footer-contact li { margin-bottom: 12px; }
.b2b-footer-links a, .b2b-footer-contact a { color: rgba(255,255,255,0.7); text-decoration: none; font-size: 14px; transition: color 0.2s; }
.b2b-footer-links a:hover, .b2b-footer-contact a:hover { color: #ffffff; }
.b2b-footer-contact li { display: flex; align-items: flex-start; gap: 12px; color: rgba(255,255,255,0.7); font-size: 14px; }
.b2b-footer-contact li svg { flex-shrink: 0; margin-top: 2px; color: var(--accent); }
.b2b-footer-bottom { border-top: 1px solid rgba(255,255,255,0.1); padding: 24px 0; text-align: center; color: rgba(255,255,255,0.7); font-size: 14px; }

/* =========================================
   Main Content Layout
========================================= */
.site-main { padding: 40px 0; }
.b2b-shop-layout { display: grid; grid-template-columns: 280px 1fr; gap: 48px; align-items: start; }
.b2b-mobile-btn, .b2b-mobile-btn-close { display: none; background: var(--primary); color: #fff; border: none; padding: 12px 24px; border-radius: var(--radius); font-size: 14px; font-weight: 600; cursor: pointer; margin-bottom: 24px; width: 100%; }

.b2b-sidebar { background: #ffffff; border-radius: var(--radius); padding: 24px; box-shadow: var(--shadow); }
.b2b-sidebar .widget { margin-bottom: 32px; }
.b2b-sidebar .widget-title { font-size: 15px; font-weight: 700; color: var(--primary); margin: 0 0 16px 0; padding-bottom: 12px; border-bottom: 2px solid var(--bg-light); text-transform: uppercase; letter-spacing: 0.5px; }
.b2b-sidebar ul { list-style: none; padding: 0; margin: 0; }
.b2b-sidebar ul li { margin-bottom: 12px; display: flex; justify-content: space-between; align-items: center; font-size: 14px; }
.b2b-sidebar ul li a { color: var(--text-dark); text-decoration: none; transition: color 0.2s; }
.b2b-sidebar ul li a:hover { color: var(--accent); }

/* WooCommerce Native Title fix */
.woocommerce-products-header__title.page-title {
  font-size: 24px;
  margin-bottom: 24px;
  border-bottom: 2px solid var(--border);
  padding-bottom: 12px;
  color: var(--primary);
  font-weight: 800;
}

/* =========================================
   Product Grid (Archive)
========================================= */
ul.products {
  list-style: none !important;
  padding: 0 !important;
  margin: 0 !important;
  display: grid !important;
  grid-template-columns: repeat(4, 1fr) !important;
  gap: 24px !important;
}

ul.products::before, ul.products::after { display: none !important; }

/* OVERRIDE WOOCOMMERCE INLINE STYLES */
.woocommerce ul.products li.product, 
.woocommerce-page ul.products li.product {
  width: 100% !important;
  margin: 0 !important;
  float: none !important;
  clear: none !important;
  background: #ffffff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  text-align: center;
  display: flex;
  flex-direction: column;
  position: relative;
  transition: box-shadow 0.2s, transform 0.2s;
}

.woocommerce ul.products li.product:hover {
  box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  transform: translateY(-4px);
}

.woocommerce ul.products li.product a.woocommerce-loop-product__link {
  text-decoration: none;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.woocommerce ul.products li.product img,
.woocommerce ul.products li.product .woocommerce-placeholder {
  width: 100% !important;
  height: 220px !important;
  object-fit: contain;
  margin-bottom: 20px !important;
  background-color: var(--bg-light);
  border-radius: 4px;
  padding: 10px;
}

.woocommerce ul.products li.product .woocommerce-loop-product__title {
  font-size: 15px;
  color: var(--text-dark);
  font-weight: 700;
  line-height: 1.4;
  margin: 0 0 12px 0;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.woocommerce ul.products li.product .price {
  font-size: 18px;
  color: var(--price);
  font-weight: 800;
  margin: auto 0 20px 0;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 8px;
}

.woocommerce ul.products li.product .price del { color: var(--text-light); font-size: 13px; font-weight: 400; }

/* Add To Cart Buttons */
.woocommerce ul.products li.product .button,
.woocommerce-page ul.products li.product .button {
  background: var(--primary) !important;
  color: #ffffff !important;
  padding: 12px 0 !important;
  border-radius: var(--radius) !important;
  font-size: 14px !important;
  font-weight: 600 !important;
  text-align: center !important;
  margin-top: auto !important;
  display: block !important;
  border: none !important;
  transition: background 0.2s !important;
}

.woocommerce ul.products li.product .button:hover { background: var(--accent) !important; }

.onsale {
  position: absolute;
  top: -12px;
  right: -12px;
  background: var(--sale);
  color: #ffffff;
  font-size: 12px;
  font-weight: 800;
  padding: 6px 14px;
  border-radius: 20px;
  z-index: 9;
}

/* =========================================
   Single Product Layout
========================================= */
div.product { display: grid; grid-template-columns: minmax(300px, 400px) 1fr; gap: 48px; align-items: start; background: #ffffff; padding: 40px; border-radius: var(--radius); box-shadow: var(--shadow); }
.woocommerce-notices-wrapper { grid-column: 1 / -1; width: 100%; }
.woocommerce-product-gallery { position: relative; text-align: center; }
.woocommerce-product-gallery__image img { width: 100%; height: auto; max-height: 500px; object-fit: contain; margin-bottom: 24px; border: 1px solid var(--border); border-radius: var(--radius); padding: 10px; }
.flex-control-nav.flex-control-thumbs { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
.flex-control-nav.flex-control-thumbs li img { width: 100%; height: auto; border: 2px solid transparent; border-radius: 4px; cursor: pointer; opacity: 0.6; transition: all 0.2s; }
.flex-control-nav.flex-control-thumbs li img:hover { opacity: 1; border-color: var(--primary); }

.summary.entry-summary .product_title { font-size: 28px; color: var(--primary); margin: 0 0 16px 0; line-height: 1.3; font-weight: 800; }
.summary.entry-summary .price { font-size: 28px; margin: 20px 0; justify-content: flex-start; }
.woocommerce-product-details__short-description { font-size: 15px; color: var(--text-dark); margin-bottom: 24px; padding-bottom: 24px; border-bottom: 1px solid var(--border); }
form.cart { display: flex; gap: 16px; margin-bottom: 32px; align-items: stretch; }
.quantity input.qty { width: 70px; height: 50px; border: 1px solid var(--border); border-radius: var(--radius); text-align: center; font-size: 16px; font-weight: 600; color: var(--primary); }

.single_add_to_cart_button { background: var(--primary) !important; color: #ffffff !important; border: none !important; border-radius: var(--radius) !important; padding: 0 32px !important; font-size: 15px !important; font-weight: 700 !important; cursor: pointer !important; height: 50px !important; transition: background 0.2s !important; }
.single_add_to_cart_button:hover { background: var(--accent) !important; }

.product_meta { font-size: 14px; color: var(--text-light); display: flex; flex-direction: column; gap: 8px; padding-top: 24px; border-top: 1px solid var(--border); }
.b2b-book-meta-wrapper { background: var(--bg-dark); border: 1px solid var(--border); padding: 24px; border-radius: var(--radius); margin-bottom: 24px; }
.b2b-book-meta-wrapper h4 { margin-top: 0; margin-bottom: 16px; font-size: 16px; text-transform: uppercase; color: var(--primary); letter-spacing: 0.5px; }
.b2b-book-meta-list { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.b2b-book-meta-list li { font-size: 14px; }
.b2b-book-meta-list li strong { color: var(--text-light); display: block; font-size: 12px; text-transform: uppercase; }

/* Tabs */
.woocommerce-tabs { grid-column: 1 / -1; margin-top: 40px; border-top: 1px solid var(--border); padding-top: 40px; }
ul.tabs { list-style: none; padding: 0; margin: 0; display: flex; gap: 16px; }
ul.tabs li a { display: block; padding: 12px 24px; font-size: 15px; font-weight: 600; color: var(--text-light); text-decoration: none; background: var(--bg-dark); border-radius: var(--radius); transition: all 0.2s; }
ul.tabs li.active a, ul.tabs li a:hover { background: var(--primary); color: #ffffff; }
.woocommerce-Tabs-panel { padding: 32px 0; font-size: 15px; color: var(--text-dark); }

/* =========================================
   Responsive Fixes
========================================= */
@media (max-width: 1200px) { ul.products { grid-template-columns: repeat(3, 1fr) !important; } }
@media (max-width: 992px) {
  .b2b-header-inner { flex-wrap: wrap; gap: 20px; }
  .b2b-header-search { order: 3; max-width: 100%; }
  .b2b-footer-grid { grid-template-columns: repeat(2, 1fr); }
  .b2b-shop-layout { grid-template-columns: 1fr; }
  .b2b-sidebar { display: none; }
  .b2b-mobile-btn { display: block; }
  div.product { grid-template-columns: 1fr; gap: 32px; padding: 24px; }
  .woocommerce-product-gallery__image img { max-height: 400px; }
}
@media (max-width: 768px) {
  .b2b-main-menu { overflow-x: auto; padding-bottom: 8px; }
  .b2b-footer-grid { grid-template-columns: 1fr; gap: 32px; }
  ul.products { grid-template-columns: repeat(2, 1fr) !important; }
  .b2b-book-meta-list { grid-template-columns: 1fr; }
  ul.tabs { flex-wrap: wrap; }
}
@media (max-width: 480px) {
  ul.products { grid-template-columns: 1fr !important; }
  form.cart { flex-direction: column; }
  .single_add_to_cart_button { width: 100%; }
}