@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Outfit:wght@400;500;600;700;800&display=swap');

/* ==========================================================================
   1. Design Tokens & Core Setup
   ========================================================================== */
:root {
  /* Fonts */
  --font-heading: 'Outfit', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;

  /* Theme: Dark Mode */
  --bg-primary: #111827;
  --bg-secondary: #172033;
  --bg-tertiary: #202b3d;
  --bg-glass: rgba(23, 32, 51, 0.86);
  --bg-glass-hover: rgba(32, 43, 61, 0.9);
  --border-color: rgba(255, 255, 255, 0.1);
  --border-glow: rgba(47, 112, 142, 0.28);
  
  --text-primary: #f3f4f6;
  --text-secondary: #9ca3af;
  --text-tertiary: #6b7280;

  /* Accent Colors */
  --color-primary: #2f708e;
  --color-primary-rgb: 47, 112, 142;
  --color-secondary: #596579;
  --color-success: #1f8a70;
  --color-warning: #b98425;
  --color-danger: #b84a4a;

  /* UI Variables */
  --transition-speed: 0.3s;
  --transition-ease: cubic-bezier(0.4, 0, 0.2, 1);
  --border-radius-sm: 8px;
  --border-radius-md: 12px;
  --border-radius-lg: 16px;
  --box-shadow: 0 18px 45px rgba(0, 0, 0, 0.28);
  --box-shadow-glow: 0 12px 28px rgba(18, 34, 48, 0.18);

  --sidebar-width: 420px;
}

/* Light Theme Variables */
body.light-theme {
  --bg-primary: #f6f8fb;
  --bg-secondary: #ffffff;
  --bg-tertiary: #eef3f7;
  --bg-glass: rgba(255, 255, 255, 0.92);
  --bg-glass-hover: #f8fafc;
  --border-color: #dce3ea;
  --border-glow: rgba(47, 112, 142, 0.24);
  
  --text-primary: #1f2937;
  --text-secondary: #5f6b7a;
  --text-tertiary: #8d99a8;

  --color-primary: #2f708e;
  --color-primary-rgb: 47, 112, 142;
  --color-secondary: #596579;
  
  --box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
  --box-shadow-glow: 0 12px 28px rgba(47, 112, 142, 0.12);
}

/* Reset and Global Styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scrollbar-gutter: stable;
}

body {
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-body);
  line-height: 1.6;
  overflow-x: hidden;
  transition: background-color var(--transition-speed) var(--transition-ease),
              color var(--transition-speed) var(--transition-ease);
  position: relative;
}

body::before {
  content: none;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
  background: var(--bg-tertiary);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--color-primary);
}

/* ==========================================================================
   2. Layout & Common UI Components
   ========================================================================== */
.container {
  max-width: 1300px;
  margin: 0 auto;
  padding: 0 24px;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  letter-spacing: 0;
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  cursor: pointer;
  border: none;
  background: none;
  font-family: var(--font-body);
}

/* Glassmorphism Panel */
.glass-panel {
  background: var(--bg-glass);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-md);
  box-shadow: var(--box-shadow);
  transition: border-color var(--transition-speed) var(--transition-ease),
              box-shadow var(--transition-speed) var(--transition-ease);
}

.glass-panel:hover {
  border-color: var(--border-glow);
  box-shadow: var(--box-shadow-glow);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  font-weight: 600;
  border-radius: var(--border-radius-sm);
  transition: all var(--transition-speed) var(--transition-ease);
  font-size: 0.95rem;
}

.btn-primary {
  background: var(--color-primary);
  color: #ffffff;
  box-shadow: 0 8px 18px rgba(var(--color-primary-rgb), 0.2);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 24px rgba(var(--color-primary-rgb), 0.3);
  background: #245a73;
  color: #ffffff;
}

.btn-secondary {
  background: var(--bg-tertiary);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
}

.btn-secondary:hover {
  background: var(--bg-glass-hover);
  border-color: var(--color-primary);
}

.btn-icon {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-tertiary);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
  transition: all var(--transition-speed);
}

.btn-icon:hover {
  background: var(--color-primary);
  color: #ffffff;
  transform: scale(1.05);
  border-color: var(--color-primary);
}

/* Badges */
.badge {
  display: inline-block;
  padding: 4px 8px;
  font-size: 0.72rem;
  font-weight: 700;
  border-radius: 4px;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.badge-cyan {
  background: rgba(47, 112, 142, 0.1);
  color: var(--color-primary);
  border: 1px solid rgba(47, 112, 142, 0.22);
}

.badge-purple {
  background: rgba(89, 101, 121, 0.1);
  color: var(--color-secondary);
  border: 1px solid rgba(89, 101, 121, 0.2);
}

.badge-green {
  background: rgba(16, 185, 129, 0.1);
  color: #10b981;
  border: 1px solid rgba(16, 185, 129, 0.2);
}

.badge-warning {
  background: rgba(245, 166, 35, 0.1);
  color: #f5a623;
  border: 1px solid rgba(245, 166, 35, 0.2);
}

.badge-danger {
  background: rgba(239, 68, 68, 0.1);
  color: #ef4444;
  border: 1px solid rgba(239, 68, 68, 0.2);
}

/* ==========================================================================
   3. Header & Navigation
   ========================================================================== */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--bg-glass);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-color);
  transition: background var(--transition-speed);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--text-primary);
  font-family: var(--font-heading);
}

.logo span {
  color: var(--text-primary);
}

.logo svg {
  color: var(--color-primary);
}

.nav-links ul {
  display: flex;
  list-style: none;
  gap: 24px;
}

.nav-links a {
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color var(--transition-speed);
}

.nav-links a:hover, .nav-links a.active {
  color: var(--color-primary);
}

.search-box {
  flex: 1;
  max-width: 320px;
  position: relative;
}

.search-box input {
  width: 100%;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-sm);
  padding: 10px 16px 10px 42px;
  color: var(--text-primary);
  font-family: var(--font-body);
  transition: all var(--transition-speed);
}

.search-box input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(var(--color-primary-rgb), 0.12);
}

.search-box svg {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-secondary);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.cart-btn-wrapper {
  position: relative;
}

.cart-count {
  position: absolute;
  top: -6px;
  right: -6px;
  background: var(--color-primary);
  color: #fff;
  font-size: 0.75rem;
  font-weight: 700;
  border-radius: 50%;
  width: 20px;
  height: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 6px 16px rgba(var(--color-primary-rgb), 0.25);
  animation: popCount 0.3s ease-out;
}

@keyframes popCount {
  0% { transform: scale(0.5); }
  50% { transform: scale(1.2); }
  100% { transform: scale(1); }
}

/* ==========================================================================
   4. Split Hero Banner & Trust Bar
   ========================================================================== */
.hero-section {
  margin: 40px 0;
  position: relative;
}

.hero-split-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 40px;
  align-items: center;
  background: var(--bg-glass);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-lg);
  padding: 48px;
  overflow: hidden;
  box-shadow: var(--box-shadow);
}

.hero-text-side {
  color: var(--text-primary);
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(var(--color-primary-rgb), 0.1);
  color: var(--color-primary);
  border: 1px solid rgba(var(--color-primary-rgb), 0.2);
  padding: 6px 14px;
  border-radius: 50px;
  font-size: 0.78rem;
  font-weight: 700;
  margin-bottom: 20px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.hero-text-side h1 {
  font-size: 2.8rem;
  line-height: 1.15;
  margin-bottom: 16px;
  color: var(--text-primary);
}

body.light-theme .hero-text-side h1 {
  color: var(--text-primary);
}

.hero-text-side p {
  color: var(--text-secondary);
  font-size: 1.05rem;
  line-height: 1.6;
  margin-bottom: 32px;
}

.hero-stats-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-bottom: 36px;
  border-top: 1px solid var(--border-color);
  padding-top: 24px;
}

.hero-stat-card h4 {
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--color-primary);
  margin-bottom: 4px;
}

.hero-stat-card p {
  font-size: 0.82rem;
  color: var(--text-secondary);
  margin-bottom: 0;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.hero-buttons {
  display: flex;
  gap: 16px;
}

.hero-img-side {
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero-image-frame {
  width: 100%;
  height: 340px;
  border-radius: var(--border-radius-md);
  border: 1px solid var(--border-color);
  overflow: hidden;
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.4);
  position: relative;
}

.hero-image-frame::after {
  content: none;
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, rgba(var(--color-primary-rgb), 0.1) 0%, transparent 100%);
  pointer-events: none;
}

.hero-image-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s;
}

.hero-image-frame:hover img {
  transform: scale(1.03);
}

/* Institutional trust bar */
.trust-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 32px;
  background: var(--bg-secondary);
  border-radius: var(--border-radius-sm);
  border: 1px dashed var(--border-color);
  margin-bottom: 40px;
  font-size: 0.85rem;
}

.trust-bar > span {
  color: var(--text-tertiary);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.trust-partners-grid {
  display: flex;
  gap: 28px;
  flex-wrap: wrap;
}

.trust-partners-grid span {
  color: var(--text-secondary);
  font-weight: 600;
  opacity: 0.75;
}

/* ==========================================================================
   5. Shop Layout & Sidebar Filters
   ========================================================================== */
.shop-layout {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 40px;
  margin-bottom: 60px;
}

.sidebar {
  position: sticky;
  top: 110px;
  height: fit-content;
}

.filter-section {
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 24px;
  margin-bottom: 24px;
}

.filter-section:last-child {
  border-bottom: none;
  padding-bottom: 0;
  margin-bottom: 0;
}

.filter-section h3 {
  font-size: 1rem;
  margin-bottom: 16px;
  color: var(--text-primary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.category-list {
  list-style: none;
}

.category-item button {
  width: 100%;
  text-align: left;
  padding: 8px 12px;
  border-radius: var(--border-radius-sm);
  color: var(--text-secondary);
  font-size: 0.92rem;
  transition: all 0.2s;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.category-item button:hover {
  background: var(--bg-tertiary);
  color: var(--text-primary);
  transform: translateX(4px);
}

.category-item.active button {
  background: var(--color-primary);
  color: #ffffff;
  font-weight: 700;
}

.category-count {
  background: rgba(255, 255, 255, 0.1);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 0.72rem;
  font-weight: 700;
}

.category-item.active .category-count {
  background: rgba(0, 0, 0, 0.1);
}

/* Filter Controls */
.filter-options {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.checkbox-label {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text-secondary);
  font-size: 0.9rem;
  cursor: pointer;
}

.checkbox-label input {
  appearance: none;
  width: 18px;
  height: 18px;
  border: 1px solid var(--border-color);
  border-radius: 4px;
  background: var(--bg-tertiary);
  outline: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
}

.checkbox-label input:checked {
  background: var(--color-primary);
  border-color: var(--color-primary);
}

.checkbox-label input:checked::after {
  content: '✓';
  color: #ffffff;
  font-size: 0.75rem;
  font-weight: 700;
}

/* ==========================================================================
   6. Product Grid & Cards (SIGMA-ALDRICH Scientific look)
   ========================================================================== */
.catalog-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
}

.catalog-info {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
}

.product-card {
  padding: 18px;
  display: flex;
  flex-direction: column;
  height: 100%;
  overflow: hidden;
  opacity: 0;
  transform: translateY(18px);
  animation: productCardIn 0.58s var(--transition-ease) forwards;
  animation-delay: calc(min(var(--card-index), 10) * 45ms);
  position: relative;
}

.product-card::before {
  content: '';
  position: absolute;
  inset: 0;
  border-top: 3px solid var(--tier-accent, var(--color-primary));
  opacity: 0.9;
  pointer-events: none;
}

.product-card:hover {
  transform: translateY(-4px);
}

.tier-entry-tier {
  --tier-accent: #5f8f72;
}

.tier-core-tier {
  --tier-accent: #2f708e;
}

.tier-popular-tier {
  --tier-accent: #8b6f36;
}

.tier-premium-tier {
  --tier-accent: #6d5f89;
}

@keyframes productCardIn {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.product-image-container {
  height: 190px;
  width: 100%;
  border-radius: var(--border-radius-sm);
  background: #f8fafc;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  border: 1px solid var(--border-color);
  isolation: isolate;
}

.product-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s var(--transition-ease), filter 0.6s var(--transition-ease);
}

.product-card:hover .product-image {
  transform: scale(1.055);
  filter: saturate(1.05) contrast(1.02);
}

.product-image-sheen {
  position: absolute;
  inset: 0;
  background: linear-gradient(115deg, transparent 20%, rgba(255, 255, 255, 0.34) 45%, transparent 68%);
  transform: translateX(-120%);
  transition: transform 0.75s var(--transition-ease);
  pointer-events: none;
  z-index: 1;
}

.product-card:hover .product-image-sheen {
  transform: translateX(120%);
}

.product-badges {
  position: absolute;
  top: 12px;
  left: 12px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  z-index: 2;
}

.product-info {
  flex-grow: 1;
  display: flex;
  flex-direction: column;
}

.product-category {
  font-size: 0.75rem;
  color: var(--text-tertiary);
  text-transform: uppercase;
  font-weight: 700;
  margin-bottom: 6px;
  letter-spacing: 0.05em;
}

.product-name {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 8px;
  line-height: 1.35;
  color: var(--text-primary);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  height: 46px;
}

/* Scientific Specs Block (B2B Requisition detail) */
.product-specs-summary {
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  padding: 10px;
  margin-bottom: 14px;
  font-family: monospace;
  font-size: 0.78rem;
  display: flex;
  flex-direction: column;
  gap: 4px;
  color: var(--text-secondary);
}

.product-specs-summary span {
  display: flex;
  justify-content: space-between;
}

.product-specs-summary strong {
  color: var(--text-primary);
}

.product-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-bottom: 16px;
}

.product-rating {
  display: flex;
  align-items: center;
  gap: 4px;
  color: var(--color-warning);
}

.product-price-section {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-top: auto;
  padding-top: 14px;
  border-top: 1px solid var(--border-color);
}

.product-price {
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--color-primary);
  font-family: var(--font-heading);
}

.product-unit {
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-left: 4px;
}

.product-card-actions {
  display: flex;
  gap: 10px;
  margin-top: 14px;
}

/* ==========================================================================
   7. B2B Procurement Section
   ========================================================================== */
.procurement-section {
  margin: 60px 0;
  padding: 48px;
  background: linear-gradient(135deg, rgba(var(--color-primary-rgb), 0.03) 0%, rgba(155, 81, 224, 0.03) 100%);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--box-shadow);
}

.procurement-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 48px;
  align-items: center;
}

.procurement-text h3 {
  font-size: 1.8rem;
  margin-bottom: 12px;
  color: var(--text-primary);
}

.procurement-text p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-bottom: 24px;
  line-height: 1.6;
}

.procurement-bullets {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.procurement-bullets div strong {
  color: var(--text-primary);
  font-size: 0.95rem;
}

.procurement-bullets div p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: 0;
  margin-top: 4px;
}

.procurement-actions-card {
  padding: 32px;
  border-radius: var(--border-radius-md);
  border: 1px solid var(--border-color);
}

.procurement-actions-card h4 {
  font-size: 1.2rem;
  margin-bottom: 8px;
  color: var(--text-primary);
}

/* ==========================================================================
   8. Cart Drawer
   ========================================================================== */
.cart-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(4px);
  z-index: 199;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-speed);
}

.cart-overlay.active {
  opacity: 1;
  pointer-events: all;
}

.cart-drawer {
  position: fixed;
  top: 0;
  right: calc(-1 * var(--sidebar-width));
  width: var(--sidebar-width);
  height: 100vh;
  background: var(--bg-secondary);
  border-left: 1px solid var(--border-color);
  box-shadow: -10px 0 30px rgba(0,0,0,0.5);
  z-index: 200;
  display: flex;
  flex-direction: column;
  transition: right 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.cart-drawer.active {
  right: 0;
}

.cart-header {
  padding: 24px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.cart-header h2 {
  font-size: 1.4rem;
  display: flex;
  align-items: center;
  gap: 10px;
}

.cart-header h2 svg {
  color: var(--color-primary);
}

.cart-close-btn {
  color: var(--text-secondary);
}

.cart-close-btn:hover {
  color: var(--color-danger);
}

.cart-body {
  flex: 1;
  overflow-y: auto;
  padding: 24px;
}

/* Cart Incompatibility Warnings Box */
.cart-warnings {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 20px;
}

.warning-box {
  padding: 14px;
  border-radius: var(--border-radius-sm);
  border-left: 4px solid;
  font-size: 0.85rem;
  line-height: 1.45;
  background: var(--bg-tertiary);
  animation: slideDown 0.3s var(--transition-ease);
}

.warning-box.danger {
  border-left-color: var(--color-danger);
  border-top: 1px solid rgba(239, 68, 68, 0.1);
  border-bottom: 1px solid rgba(239, 68, 68, 0.1);
  border-right: 1px solid rgba(239, 68, 68, 0.1);
}

.warning-box.warning {
  border-left-color: var(--color-warning);
  border-top: 1px solid rgba(245, 166, 35, 0.1);
  border-bottom: 1px solid rgba(245, 166, 35, 0.1);
  border-right: 1px solid rgba(245, 166, 35, 0.1);
}

.warning-box h4 {
  font-weight: 700;
  margin-bottom: 6px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.warning-box h4 svg {
  width: 16px;
  height: 16px;
}

.warning-box.danger h4 { color: var(--color-danger); }
.warning-box.warning h4 { color: var(--color-warning); }

@keyframes slideDown {
  from { opacity: 0; transform: translateY(-10px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Cart Items */
.cart-items-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.cart-item {
  display: flex;
  gap: 16px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border-color);
  position: relative;
}

.cart-item-img {
  width: 60px;
  height: 60px;
  border-radius: 6px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  flex: 0 0 auto;
}

.cart-item-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.cart-item-details {
  flex: 1;
}

.cart-item-name {
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 4px;
  color: var(--text-primary);
}

.cart-item-price {
  color: var(--color-primary);
  font-weight: 700;
  font-size: 0.95rem;
  margin-bottom: 8px;
}

.cart-item-controls {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.qty-control {
  display: flex;
  align-items: center;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: 4px;
  overflow: hidden;
}

.qty-btn {
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  font-weight: bold;
}

.qty-btn:hover {
  background: var(--bg-glass-hover);
  color: var(--text-primary);
}

.qty-val {
  width: 30px;
  text-align: center;
  font-size: 0.85rem;
  font-weight: 600;
}

.cart-item-remove {
  color: var(--text-secondary);
  font-size: 0.8rem;
  display: flex;
  align-items: center;
  gap: 4px;
}

.cart-item-remove:hover {
  color: var(--color-danger);
}

/* Empty State */
.cart-empty-state {
  text-align: center;
  padding: 40px 0;
  color: var(--text-secondary);
}

.cart-empty-state svg {
  margin-bottom: 16px;
  color: var(--text-tertiary);
}

/* Cart Footer */
.cart-footer {
  padding: 24px;
  border-top: 1px solid var(--border-color);
  background: var(--bg-secondary);
}

.cart-summary-row {
  display: flex;
  justify-content: space-between;
  margin-bottom: 12px;
  font-size: 0.95rem;
  color: var(--text-secondary);
}

.cart-summary-total {
  border-top: 1px solid var(--border-color);
  padding-top: 12px;
  margin-top: 12px;
  font-weight: 800;
  color: var(--text-primary);
  font-size: 1.2rem;
}

.cart-summary-total span:last-child {
  color: var(--color-primary);
}

.promo-section {
  display: flex;
  gap: 8px;
  margin: 16px 0;
}

.promo-section input {
  flex: 1;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-sm);
  padding: 8px 12px;
  color: var(--text-primary);
  font-size: 0.85rem;
}

.promo-section input:focus {
  outline: none;
  border-color: var(--color-primary);
}

.cart-checkout-btn {
  width: 100%;
}

/* ==========================================================================
   9. Modals (Native <dialog>)
   ========================================================================== */
dialog {
  margin: auto;
  border: 1px solid var(--border-color);
  background: var(--bg-secondary);
  color: var(--text-primary);
  padding: 0;
  border-radius: var(--border-radius-lg);
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.7);
  max-width: 700px;
  width: calc(100% - 32px);
  outline: none;
}

dialog::backdrop {
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  animation: fadeIn 0.3s ease-out;
}

dialog.modal-closing {
  animation: fadeOut 0.2s ease-in forwards;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes fadeOut {
  from { opacity: 1; }
  to { opacity: 0; }
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 24px;
  border-bottom: 1px solid var(--border-color);
}

.modal-header h2 {
  font-size: 1.4rem;
  color: var(--text-primary);
}

.modal-close-btn {
  color: var(--text-secondary);
}

.modal-close-btn:hover {
  color: var(--color-danger);
}

.modal-body {
  padding: 24px;
  max-height: 75vh;
  overflow-y: auto;
}

/* Product Detail Modal Content */
.modal-product-layout {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 32px;
}

.modal-product-image {
  background: #f8fafc;
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-md);
  height: 240px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.modal-product-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.modal-product-meta {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.modal-product-formula {
  font-family: monospace;
  font-size: 1rem;
  background: var(--bg-tertiary);
  padding: 4px 8px;
  border-radius: 4px;
  align-self: flex-start;
  color: var(--color-primary);
}

.modal-product-specs-table {
  width: 100%;
  border-collapse: collapse;
  margin: 16px 0;
  font-size: 0.9rem;
}

.modal-product-specs-table th, .modal-product-specs-table td {
  padding: 8px 12px;
  text-align: left;
  border-bottom: 1px solid var(--border-color);
}

.modal-product-specs-table th {
  color: var(--text-secondary);
  font-weight: 500;
  width: 40%;
}

.modal-product-specs-table td {
  color: var(--text-primary);
  font-weight: 600;
}

.modal-product-safety {
  background: rgba(245, 166, 35, 0.05);
  border: 1px dashed rgba(245, 166, 35, 0.2);
  padding: 12px;
  border-radius: var(--border-radius-sm);
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-top: 16px;
}

.modal-product-safety strong {
  color: var(--color-warning);
}

.modal-product-actions {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-top: 24px;
}

/* ==========================================================================
   10. Checkout Modal Structure
   ========================================================================== */
.checkout-form {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.form-group-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.form-group label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.form-group input, .form-group select {
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-sm);
  padding: 10px 14px;
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 0.95rem;
  transition: all var(--transition-speed);
}

.form-group input:focus, .form-group select:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(var(--color-primary-rgb), 0.12);
}

.checkout-totals {
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  padding: 16px;
  border-radius: var(--border-radius-sm);
  margin-bottom: 16px;
}

/* Success Confirmation State */
.success-modal {
  text-align: center;
  padding: 40px 20px;
}

.success-icon {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: rgba(16, 185, 129, 0.1);
  color: var(--color-success);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
  box-shadow: 0 0 20px rgba(16, 185, 129, 0.2);
}

.success-title {
  font-size: 1.8rem;
  margin-bottom: 12px;
  color: var(--text-primary);
}

.success-message {
  color: var(--text-secondary);
  font-size: 1rem;
  margin-bottom: 32px;
  max-width: 450px;
  margin-left: auto;
  margin-right: auto;
}

.invoice-preview {
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-sm);
  padding: 20px;
  text-align: left;
  font-family: monospace;
  font-size: 0.85rem;
  margin-bottom: 32px;
  max-width: 480px;
  margin-left: auto;
  margin-right: auto;
  color: var(--text-secondary);
}

.invoice-header {
  border-bottom: 1px dashed var(--border-color);
  padding-bottom: 12px;
  margin-bottom: 12px;
  display: flex;
  justify-content: space-between;
  color: var(--text-primary);
  font-weight: bold;
}

.invoice-item-row {
  display: flex;
  justify-content: space-between;
  margin-bottom: 6px;
}

.invoice-footer {
  border-top: 1px dashed var(--border-color);
  padding-top: 12px;
  margin-top: 12px;
  display: flex;
  justify-content: space-between;
  font-weight: bold;
  color: var(--color-primary);
}

/* ==========================================================================
   11. Product Documentation Section
   ========================================================================== */
.compliance-section {
  margin-top: 80px;
  border-top: 1px solid var(--border-color);
  padding-top: 60px;
  margin-bottom: 60px;
}

.compliance-header {
  text-align: center;
  margin-bottom: 40px;
}

.compliance-header h2 {
  font-size: 2rem;
  margin-bottom: 12px;
}

.compliance-header p {
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

.docs-search {
  max-width: 600px;
  margin: 0 auto 40px auto;
}

.docs-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
}

.docs-card {
  padding: 20px;
  display: flex;
  align-items: center;
  gap: 16px;
}

.docs-icon {
  background: rgba(239, 68, 68, 0.1);
  color: var(--color-danger);
  width: 46px;
  height: 46px;
  border-radius: var(--border-radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
}

.docs-info {
  flex: 1;
}

.docs-info h4 {
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.docs-info p {
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.docs-download-btn {
  color: var(--text-secondary);
}

.docs-download-btn:hover {
  color: var(--color-primary);
}

/* ==========================================================================
   12. Footer Section
   ========================================================================== */
.footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  padding: 60px 0 30px 0;
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr repeat(3, 1fr);
  gap: 40px;
  margin-bottom: 40px;
}

.footer-column h4 {
  color: var(--text-primary);
  font-size: 1.05rem;
  margin-bottom: 20px;
}

.footer-column p {
  line-height: 1.7;
}

.footer-column ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-column ul a:hover {
  color: var(--color-primary);
}

.footer-bottom {
  border-top: 1px solid var(--border-color);
  padding-top: 30px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

/* ==========================================================================
   13. Responsive Media Queries
   ========================================================================== */
@media (max-width: 1024px) {
  .hero-split-grid {
    grid-template-columns: 1fr;
    padding: 32px;
    gap: 32px;
  }

  .hero-image-frame {
    height: 280px;
  }

  .shop-layout {
    grid-template-columns: 1fr;
    gap: 30px;
  }

  .sidebar {
    position: static;
  }

  .procurement-grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }
}

@media (max-width: 768px) {
  .nav-container {
    height: auto;
    flex-direction: column;
    padding: 16px 0;
    gap: 16px;
  }

  .nav-links ul {
    gap: 16px;
    justify-content: center;
  }

  .search-box {
    margin: 0;
    max-width: 100%;
    width: 100%;
    order: 3;
  }

  .hero-text-side h1 {
    font-size: 2.2rem;
  }

  .hero-stats-row {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .hero-buttons {
    flex-direction: column;
    gap: 10px;
  }

  .trust-bar {
    flex-direction: column;
    gap: 12px;
    text-align: center;
  }

  .trust-partners-grid {
    justify-content: center;
    gap: 16px;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 16px;
    text-align: center;
  }

  .modal-product-layout {
    grid-template-columns: 1fr;
    gap: 20px;
  }
}

/* ==========================================================================
   15. Compliance and App Utility Pages
   ========================================================================== */
.simple-page {
  min-height: 100vh;
  background: var(--bg-primary);
}

.simple-header {
  border-bottom: 1px solid var(--border-color);
  background: var(--bg-secondary);
}

.simple-nav {
  min-height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.simple-nav-links {
  display: flex;
  gap: 18px;
  align-items: center;
  color: var(--text-secondary);
  font-weight: 600;
  font-size: 0.92rem;
}

.simple-nav-links a:hover {
  color: var(--color-primary);
}

.simple-main {
  max-width: 980px;
  margin: 0 auto;
  padding: 56px 24px 80px;
}

.simple-hero {
  margin-bottom: 28px;
}

.simple-eyebrow {
  display: inline-flex;
  color: var(--color-primary);
  background: rgba(var(--color-primary-rgb), 0.1);
  border: 1px solid rgba(var(--color-primary-rgb), 0.18);
  border-radius: 999px;
  padding: 6px 12px;
  font-size: 0.78rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 16px;
}

.simple-hero h1 {
  font-size: 2.4rem;
  line-height: 1.15;
  margin-bottom: 12px;
}

.simple-hero p {
  color: var(--text-secondary);
  max-width: 760px;
}

.simple-panel {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--box-shadow);
  padding: 32px;
}

.simple-panel h2 {
  font-size: 1.35rem;
  margin: 30px 0 10px;
}

.simple-panel h2:first-child {
  margin-top: 0;
}

.simple-panel p,
.simple-panel li {
  color: var(--text-secondary);
}

.simple-panel ul,
.simple-panel ol {
  padding-left: 22px;
  margin: 10px 0 18px;
}

.simple-panel li {
  margin-bottom: 8px;
}

.simple-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 24px;
}

.status-card {
  display: grid;
  gap: 12px;
  max-width: 680px;
}

.status-card strong {
  color: var(--text-primary);
}

.status-code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-sm);
  padding: 12px;
  color: var(--text-primary);
  overflow-wrap: anywhere;
}

@media (max-width: 720px) {
  .simple-nav {
    align-items: flex-start;
    flex-direction: column;
    padding: 18px 0;
  }

  .simple-nav-links {
    flex-wrap: wrap;
  }

  .simple-hero h1 {
    font-size: 2rem;
  }

  .simple-panel {
    padding: 24px;
  }
}