/* ============================================================
   EMPRESAS CENTRALES SA - Main Stylesheet
   Hardware & Home Improvement Store
   ============================================================ */

/* ============================================================
   1. GLOBAL - Variables, Reset, Typography, Smooth Scrolling
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;500;600;700;800;900&display=swap');

:root {
  /* Primary Colors */
  --primary: #2E9CDB;
  --primary-light: #5BB5E5;
  --primary-dark: #1A7BB8;
  --primary-rgb: 46, 156, 219;

  /* Secondary Colors */
  --secondary: #FF6B00;
  --secondary-light: #FF8A33;
  --secondary-dark: #CC5500;
  --secondary-rgb: 255, 107, 0;

  /* Neutrals */
  --white: #FFFFFF;
  --off-white: #F8F9FA;
  --light-gray: #E9ECEF;
  --gray: #ADB5BD;
  --dark-gray: #495057;
  --charcoal: #343A40;
  --dark: #212529;
  --black: #000000;

  /* Semantic Colors */
  --success: #28A745;
  --success-light: #D4EDDA;
  --danger: #DC3545;
  --danger-light: #F8D7DA;
  --warning: #FFC107;
  --warning-light: #FFF3CD;
  --info: #17A2B8;
  --info-light: #D1ECF1;

  /* Backgrounds */
  --bg-body: #FFFFFF;
  --bg-section: #F8F9FA;
  --bg-card: #FFFFFF;
  --bg-overlay: rgba(0, 0, 0, 0.55);

  /* Typography */
  --font-family: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-md: 1.125rem;
  --font-size-lg: 1.25rem;
  --font-size-xl: 1.5rem;
  --font-size-2xl: 2rem;
  --font-size-3xl: 2.5rem;
  --font-size-4xl: 3rem;

  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-4xl: 6rem;

  /* Borders */
  --border-radius-sm: 4px;
  --border-radius: 8px;
  --border-radius-lg: 12px;
  --border-radius-xl: 16px;
  --border-radius-full: 50%;
  --border-color: #DEE2E6;

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
  --shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.12);
  --shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.15);
  --shadow-xl: 0 12px 48px rgba(0, 0, 0, 0.2);

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition: 250ms ease;
  --transition-slow: 400ms ease;

  /* Z-Index Scale */
  --z-dropdown: 100;
  --z-sticky: 200;
  --z-fixed: 300;
  --z-overlay: 400;
  --z-modal: 500;
  --z-toast: 600;
  --z-whatsapp: 700;

  /* Layout */
  --container-max: 1280px;
  --header-height: 70px;
  --top-bar-height: 36px;
  --sidebar-width: 260px;
  --cart-sidebar-width: 420px;
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  font-size: 16px;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  font-weight: 400;
  line-height: 1.6;
  color: var(--dark);
  background-color: var(--bg-body);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

a {
  text-decoration: none;
  color: inherit;
  transition: color var(--transition);
}

a:hover {
  color: var(--primary);
}

ul, ol {
  list-style: none;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  outline: none;
  background: none;
}

input, select, textarea {
  font-family: inherit;
  font-size: inherit;
  outline: none;
}

h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
  color: var(--charcoal);
}

h1 { font-size: var(--font-size-4xl); }
h2 { font-size: var(--font-size-3xl); }
h3 { font-size: var(--font-size-2xl); }
h4 { font-size: var(--font-size-xl); }
h5 { font-size: var(--font-size-lg); }
h6 { font-size: var(--font-size-md); }

p {
  margin-bottom: var(--space-md);
  color: var(--dark-gray);
}

/* Container */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

/* Section */
.section {
  padding: var(--space-4xl) 0;
}

.section-title {
  text-align: center;
  margin-bottom: var(--space-3xl);
}

.section-title h2 {
  font-size: var(--font-size-3xl);
  font-weight: 700;
  margin-bottom: var(--space-sm);
  position: relative;
  display: inline-block;
}

.section-title h2::after {
  content: '';
  position: absolute;
  bottom: -8px;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 4px;
  background: var(--secondary);
  border-radius: 2px;
}

.section-title p {
  font-size: var(--font-size-md);
  color: var(--gray);
  max-width: 600px;
  margin: var(--space-md) auto 0;
}


/* ============================================================
   2. HEADER / NAVIGATION
   ============================================================ */

/* Top Bar */
.top-bar {
  background: var(--charcoal);
  color: var(--white);
  height: var(--top-bar-height);
  font-size: var(--font-size-xs);
  display: flex;
  align-items: center;
}

.top-bar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.top-bar-left {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}

.top-bar-left a,
.top-bar-left span {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  color: var(--light-gray);
  transition: color var(--transition);
}

.top-bar-left a:hover {
  color: var(--primary-light);
}

.top-bar-right {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.top-bar-right a {
  color: var(--light-gray);
  font-weight: 500;
}

.top-bar-right a:hover {
  color: var(--secondary);
}

/* Main Header */
.header {
  background: var(--white);
  height: var(--header-height);
  box-shadow: var(--shadow);
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
  transition: box-shadow var(--transition);
}

.header.scrolled {
  box-shadow: var(--shadow-md);
}

.header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  gap: var(--space-lg);
}

/* Logo */
.logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  flex-shrink: 0;
}

.logo img {
  height: 44px;
  width: auto;
}

.logo-text {
  font-size: var(--font-size-lg);
  font-weight: 800;
  color: var(--primary);
  line-height: 1.1;
}

.logo-text span {
  display: block;
  font-size: var(--font-size-xs);
  font-weight: 500;
  color: var(--secondary);
  letter-spacing: 1px;
  text-transform: uppercase;
}

/* Search Bar */
.search-bar {
  flex: 1;
  max-width: 520px;
  position: relative;
}

.search-bar input {
  width: 100%;
  height: 42px;
  padding: 0 48px 0 var(--space-md);
  border: 2px solid var(--light-gray);
  border-radius: var(--border-radius-lg);
  font-size: var(--font-size-sm);
  transition: border-color var(--transition), box-shadow var(--transition);
  background: var(--off-white);
}

.search-bar input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(var(--primary-rgb), 0.15);
  background: var(--white);
}

.search-bar input::placeholder {
  color: var(--gray);
}

.search-bar button {
  position: absolute;
  right: 4px;
  top: 50%;
  transform: translateY(-50%);
  width: 36px;
  height: 36px;
  border-radius: var(--border-radius);
  background: var(--primary);
  color: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-md);
  transition: background var(--transition);
}

.search-bar button:hover {
  background: var(--primary-dark);
}

/* Header Actions */
.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.header-action-btn {
  position: relative;
  width: 42px;
  height: 42px;
  border-radius: var(--border-radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-lg);
  color: var(--dark-gray);
  transition: background var(--transition), color var(--transition);
}

.header-action-btn:hover {
  background: var(--off-white);
  color: var(--primary);
}

.header-action-btn .badge {
  position: absolute;
  top: 2px;
  right: 2px;
  min-width: 18px;
  height: 18px;
  border-radius: 9px;
  background: var(--secondary);
  color: var(--white);
  font-size: 10px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 4px;
  line-height: 1;
}

/* User Menu Dropdown */
.user-menu {
  position: relative;
}

.user-menu-dropdown {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  width: 220px;
  background: var(--white);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border-color);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: all var(--transition);
  z-index: var(--z-dropdown);
}

.user-menu:hover .user-menu-dropdown,
.user-menu-dropdown.active {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.user-menu-dropdown a {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  font-size: var(--font-size-sm);
  color: var(--dark-gray);
  transition: background var(--transition-fast);
}

.user-menu-dropdown a:hover {
  background: var(--off-white);
  color: var(--primary);
}

.user-menu-dropdown a:first-child {
  border-radius: var(--border-radius) var(--border-radius) 0 0;
}

.user-menu-dropdown a:last-child {
  border-radius: 0 0 var(--border-radius) var(--border-radius);
}

.user-menu-dropdown .divider {
  height: 1px;
  background: var(--light-gray);
  margin: var(--space-xs) 0;
}

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 42px;
  height: 42px;
  padding: 10px;
}

.hamburger span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--dark);
  border-radius: 2px;
  transition: all var(--transition);
  transform-origin: center;
}

.hamburger.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.hamburger.active span:nth-child(2) {
  opacity: 0;
}

.hamburger.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* Main Navigation */
.main-nav {
  background: var(--primary);
}

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

.nav-links {
  display: flex;
  align-items: center;
}

.nav-links a {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-md) var(--space-lg);
  color: var(--white);
  font-size: var(--font-size-sm);
  font-weight: 500;
  transition: background var(--transition-fast);
  white-space: nowrap;
}

.nav-links a:hover,
.nav-links a.active {
  background: rgba(255, 255, 255, 0.15);
  color: var(--white);
}

.nav-links a i {
  font-size: var(--font-size-base);
}

/* Mega Menu */
.nav-item-has-children {
  position: relative;
}

.mega-menu {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 700px;
  background: var(--white);
  border-radius: 0 0 var(--border-radius) var(--border-radius);
  box-shadow: var(--shadow-lg);
  padding: var(--space-xl);
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xl);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-4px);
  transition: all var(--transition);
  z-index: var(--z-dropdown);
}

.nav-item-has-children:hover .mega-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.mega-menu-column h4 {
  font-size: var(--font-size-sm);
  font-weight: 700;
  color: var(--primary);
  margin-bottom: var(--space-sm);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.mega-menu-column a {
  display: block;
  padding: var(--space-xs) 0;
  font-size: var(--font-size-sm);
  color: var(--dark-gray);
}

.mega-menu-column a:hover {
  color: var(--secondary);
  padding-left: var(--space-sm);
}


/* ============================================================
   3. HERO - Carousel / Banner
   ============================================================ */

.hero {
  position: relative;
  width: 100%;
  height: 520px;
  overflow: hidden;
  background: var(--charcoal);
}

.hero-slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 800ms ease;
}

.hero-slide.active {
  opacity: 1;
}

.hero-slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(0, 0, 0, 0.6) 0%, rgba(0, 0, 0, 0.2) 100%);
}

.hero-content {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding-left: 8%;
  max-width: 650px;
  z-index: 2;
}

.hero-content .badge-label {
  display: inline-block;
  background: var(--secondary);
  color: var(--white);
  padding: var(--space-xs) var(--space-md);
  border-radius: var(--border-radius-sm);
  font-size: var(--font-size-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: var(--space-md);
  width: fit-content;
}

.hero-content h1 {
  font-size: var(--font-size-4xl);
  color: var(--white);
  margin-bottom: var(--space-md);
  line-height: 1.1;
}

.hero-content p {
  font-size: var(--font-size-md);
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: var(--space-xl);
  max-width: 480px;
}

.hero-buttons {
  display: flex;
  gap: var(--space-md);
}

/* Hero Navigation Arrows */
.hero-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 48px;
  height: 48px;
  border-radius: var(--border-radius-full);
  background: rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(4px);
  color: var(--white);
  font-size: var(--font-size-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 3;
  transition: background var(--transition);
}

.hero-arrow:hover {
  background: rgba(255, 255, 255, 0.4);
  color: var(--white);
}

.hero-arrow-left { left: var(--space-lg); }
.hero-arrow-right { right: var(--space-lg); }

/* Hero Dots */
.hero-dots {
  position: absolute;
  bottom: var(--space-xl);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: var(--space-sm);
  z-index: 3;
}

.hero-dot {
  width: 12px;
  height: 12px;
  border-radius: var(--border-radius-full);
  background: rgba(255, 255, 255, 0.4);
  border: 2px solid transparent;
  transition: all var(--transition);
  cursor: pointer;
}

.hero-dot.active {
  background: var(--white);
  border-color: var(--secondary);
  transform: scale(1.2);
}


/* ============================================================
   4. DEPARTMENTS - Grid of 8 Cards
   ============================================================ */

.departments-section {
  padding: var(--space-4xl) 0;
  background: var(--bg-section);
}

.departments-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-lg);
}

.department-card {
  background: var(--white);
  border-radius: var(--border-radius-lg);
  padding: var(--space-xl) var(--space-lg);
  text-align: center;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-color);
  transition: all var(--transition);
  cursor: pointer;
  position: relative;
  overflow: hidden;
}

.department-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--primary);
  transform: scaleX(0);
  transition: transform var(--transition);
}

.department-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
  border-color: var(--primary);
}

.department-card:hover::before {
  transform: scaleX(1);
}

.department-card-icon {
  width: 72px;
  height: 72px;
  border-radius: var(--border-radius-lg);
  background: linear-gradient(135deg, rgba(var(--primary-rgb), 0.1), rgba(var(--primary-rgb), 0.05));
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-md);
  font-size: 32px;
  color: var(--primary);
  transition: all var(--transition);
}

.department-card:hover .department-card-icon {
  background: var(--primary);
  color: var(--white);
  transform: scale(1.08);
}

.department-card h4 {
  font-size: var(--font-size-sm);
  font-weight: 600;
  margin-bottom: var(--space-xs);
}

.department-card p {
  font-size: var(--font-size-xs);
  color: var(--gray);
  margin-bottom: 0;
}

.department-card .product-count {
  display: inline-block;
  margin-top: var(--space-sm);
  font-size: var(--font-size-xs);
  color: var(--primary);
  font-weight: 600;
}


/* ============================================================
   5. PRODUCTS - Grid Cards
   ============================================================ */

.products-section {
  padding: var(--space-4xl) 0;
}

.products-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-lg);
}

.product-card {
  background: var(--white);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-color);
  transition: all var(--transition);
  position: relative;
}

.product-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}

/* Product Image */
.product-card-image {
  position: relative;
  aspect-ratio: 1;
  overflow: hidden;
  background: var(--off-white);
}

.product-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.product-card:hover .product-card-image img {
  transform: scale(1.06);
}

/* Discount Badge */
.discount-badge {
  position: absolute;
  top: var(--space-sm);
  left: var(--space-sm);
  background: var(--danger);
  color: var(--white);
  font-size: var(--font-size-xs);
  font-weight: 700;
  padding: 3px 10px;
  border-radius: var(--border-radius-sm);
  z-index: 2;
}

/* New Badge */
.new-badge {
  position: absolute;
  top: var(--space-sm);
  right: var(--space-sm);
  background: var(--success);
  color: var(--white);
  font-size: var(--font-size-xs);
  font-weight: 700;
  padding: 3px 10px;
  border-radius: var(--border-radius-sm);
  z-index: 2;
}

/* Quick Actions Overlay */
.product-card-actions {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  display: flex;
  justify-content: center;
  gap: var(--space-sm);
  padding: var(--space-md);
  background: linear-gradient(transparent, rgba(0, 0, 0, 0.4));
  transform: translateY(100%);
  transition: transform var(--transition);
}

.product-card:hover .product-card-actions {
  transform: translateY(0);
}

.product-card-actions button {
  width: 38px;
  height: 38px;
  border-radius: var(--border-radius-full);
  background: var(--white);
  color: var(--dark-gray);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-sm);
  transition: all var(--transition-fast);
  box-shadow: var(--shadow-sm);
}

.product-card-actions button:hover {
  background: var(--primary);
  color: var(--white);
}

/* Product Info */
.product-card-body {
  padding: var(--space-md);
}

.product-card-category {
  font-size: var(--font-size-xs);
  color: var(--primary);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: var(--space-xs);
}

.product-card-name {
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--charcoal);
  margin-bottom: var(--space-sm);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  line-height: 1.4;
  min-height: 2.8em;
}

.product-card-name a:hover {
  color: var(--primary);
}

/* Rating Stars */
.rating {
  display: flex;
  align-items: center;
  gap: 2px;
  margin-bottom: var(--space-sm);
}

.rating .star {
  font-size: 14px;
  color: var(--light-gray);
}

.rating .star.filled {
  color: var(--warning);
}

.rating .star.half {
  color: var(--warning);
}

.rating-count {
  font-size: var(--font-size-xs);
  color: var(--gray);
  margin-left: var(--space-xs);
}

/* Price */
.product-card-price {
  display: flex;
  align-items: baseline;
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
}

.price-current {
  font-size: var(--font-size-lg);
  font-weight: 700;
  color: var(--primary-dark);
}

.price-original {
  font-size: var(--font-size-sm);
  color: var(--gray);
  text-decoration: line-through;
}

.price-save {
  font-size: var(--font-size-xs);
  color: var(--success);
  font-weight: 600;
}

/* Add to Cart */
.product-card-footer {
  padding: 0 var(--space-md) var(--space-md);
}

.btn-add-cart {
  width: 100%;
  height: 40px;
  border-radius: var(--border-radius);
  background: var(--primary);
  color: var(--white);
  font-size: var(--font-size-sm);
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  transition: all var(--transition-fast);
}

.btn-add-cart:hover {
  background: var(--primary-dark);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(var(--primary-rgb), 0.35);
}

.btn-add-cart.added {
  background: var(--success);
}


/* ============================================================
   6. MEMBERSHIP - 3-Tier Pricing Cards
   ============================================================ */

.membership-section {
  padding: var(--space-4xl) 0;
  background: linear-gradient(180deg, var(--bg-section) 0%, var(--white) 100%);
}

.membership-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xl);
  align-items: center;
  max-width: 1000px;
  margin: 0 auto;
}

.membership-card {
  background: var(--white);
  border-radius: var(--border-radius-xl);
  padding: var(--space-2xl);
  text-align: center;
  box-shadow: var(--shadow);
  border: 2px solid var(--border-color);
  transition: all var(--transition);
  position: relative;
}

.membership-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

/* Featured Card (Gold - middle) */
.membership-card.featured {
  border-color: var(--secondary);
  transform: scale(1.06);
  box-shadow: var(--shadow-lg);
  z-index: 2;
}

.membership-card.featured:hover {
  transform: scale(1.06) translateY(-4px);
}

.membership-card .popular-tag {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--secondary);
  color: var(--white);
  font-size: var(--font-size-xs);
  font-weight: 700;
  padding: var(--space-xs) var(--space-lg);
  border-radius: var(--border-radius);
  text-transform: uppercase;
  letter-spacing: 1px;
  white-space: nowrap;
}

.membership-card-icon {
  width: 64px;
  height: 64px;
  border-radius: var(--border-radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-md);
  font-size: 28px;
}

.membership-card.tier-platinium .membership-card-icon {
  background: linear-gradient(135deg, #E5E7EB, #9CA3AF);
  color: var(--white);
}

.membership-card.tier-gold .membership-card-icon {
  background: linear-gradient(135deg, #F59E0B, #D97706);
  color: var(--white);
}

.membership-card.tier-premium .membership-card-icon {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: var(--white);
}

.membership-card h3 {
  font-size: var(--font-size-xl);
  margin-bottom: var(--space-xs);
}

.membership-card .membership-price {
  font-size: var(--font-size-3xl);
  font-weight: 800;
  color: var(--charcoal);
  margin-bottom: var(--space-xs);
}

.membership-card .membership-price span {
  font-size: var(--font-size-sm);
  font-weight: 400;
  color: var(--gray);
}

.membership-card .membership-period {
  font-size: var(--font-size-sm);
  color: var(--gray);
  margin-bottom: var(--space-xl);
}

.membership-features {
  text-align: left;
  margin-bottom: var(--space-xl);
}

.membership-features li {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) 0;
  font-size: var(--font-size-sm);
  color: var(--dark-gray);
  border-bottom: 1px solid var(--light-gray);
}

.membership-features li:last-child {
  border-bottom: none;
}

.membership-features li i {
  color: var(--success);
  font-size: var(--font-size-sm);
  flex-shrink: 0;
}

.membership-features li.disabled {
  color: var(--gray);
  text-decoration: line-through;
}

.membership-features li.disabled i {
  color: var(--gray);
}


/* ============================================================
   7. CALCULATOR - Material Calculator
   ============================================================ */

.calculator-section {
  padding: var(--space-4xl) 0;
  background: var(--bg-section);
}

.calculator-wrapper {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2xl);
  max-width: 900px;
  margin: 0 auto;
  background: var(--white);
  border-radius: var(--border-radius-xl);
  padding: var(--space-2xl);
  box-shadow: var(--shadow);
}

.calculator-form h3 {
  font-size: var(--font-size-xl);
  margin-bottom: var(--space-lg);
  color: var(--primary);
}

.calc-field {
  margin-bottom: var(--space-md);
}

.calc-field label {
  display: block;
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--dark-gray);
  margin-bottom: var(--space-xs);
}

.calc-field select,
.calc-field input {
  width: 100%;
  height: 44px;
  padding: 0 var(--space-md);
  border: 2px solid var(--light-gray);
  border-radius: var(--border-radius);
  font-size: var(--font-size-sm);
  transition: border-color var(--transition);
}

.calc-field select:focus,
.calc-field input:focus {
  border-color: var(--primary);
}

.calc-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
}

.calculator-results {
  background: var(--off-white);
  border-radius: var(--border-radius-lg);
  padding: var(--space-xl);
}

.calculator-results h3 {
  font-size: var(--font-size-xl);
  margin-bottom: var(--space-lg);
  color: var(--secondary);
}

.calc-result-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-sm) 0;
  border-bottom: 1px dashed var(--border-color);
}

.calc-result-item:last-child {
  border-bottom: none;
}

.calc-result-label {
  font-size: var(--font-size-sm);
  color: var(--dark-gray);
}

.calc-result-value {
  font-size: var(--font-size-md);
  font-weight: 700;
  color: var(--charcoal);
}

.calc-result-total {
  margin-top: var(--space-md);
  padding-top: var(--space-md);
  border-top: 2px solid var(--primary);
}

.calc-result-total .calc-result-value {
  font-size: var(--font-size-xl);
  color: var(--primary);
}


/* ============================================================
   8. CART - Slide-Out Sidebar
   ============================================================ */

.cart-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: var(--z-overlay);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition);
}

.cart-overlay.active {
  opacity: 1;
  visibility: visible;
}

.cart-sidebar {
  position: fixed;
  top: 0;
  right: 0;
  width: var(--cart-sidebar-width);
  max-width: 100%;
  height: 100vh;
  background: var(--white);
  z-index: var(--z-modal);
  transform: translateX(100%);
  transition: transform var(--transition-slow);
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-xl);
}

.cart-sidebar.active {
  transform: translateX(0);
}

.cart-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-lg);
  border-bottom: 1px solid var(--light-gray);
  flex-shrink: 0;
}

.cart-header h3 {
  font-size: var(--font-size-lg);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.cart-header .cart-count {
  background: var(--primary);
  color: var(--white);
  font-size: var(--font-size-xs);
  font-weight: 700;
  padding: 2px 8px;
  border-radius: var(--border-radius-sm);
}

.cart-close {
  width: 36px;
  height: 36px;
  border-radius: var(--border-radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-lg);
  color: var(--gray);
  transition: all var(--transition-fast);
}

.cart-close:hover {
  background: var(--off-white);
  color: var(--dark);
}

/* Cart Items */
.cart-items {
  flex: 1;
  overflow-y: auto;
  padding: var(--space-md);
}

.cart-items::-webkit-scrollbar {
  width: 4px;
}

.cart-items::-webkit-scrollbar-thumb {
  background: var(--light-gray);
  border-radius: 2px;
}

.cart-item {
  display: flex;
  gap: var(--space-md);
  padding: var(--space-md);
  border-bottom: 1px solid var(--light-gray);
  position: relative;
}

.cart-item:last-child {
  border-bottom: none;
}

.cart-item-image {
  width: 72px;
  height: 72px;
  border-radius: var(--border-radius);
  overflow: hidden;
  flex-shrink: 0;
  background: var(--off-white);
}

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

.cart-item-info {
  flex: 1;
  min-width: 0;
}

.cart-item-name {
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--charcoal);
  margin-bottom: var(--space-xs);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.cart-item-price {
  font-size: var(--font-size-sm);
  font-weight: 700;
  color: var(--primary);
  margin-bottom: var(--space-sm);
}

/* Quantity Controls */
.qty-controls {
  display: flex;
  align-items: center;
  gap: 0;
  border: 1px solid var(--light-gray);
  border-radius: var(--border-radius-sm);
  overflow: hidden;
  width: fit-content;
}

.qty-btn {
  width: 30px;
  height: 30px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-sm);
  color: var(--dark-gray);
  background: var(--off-white);
  transition: all var(--transition-fast);
}

.qty-btn:hover {
  background: var(--primary);
  color: var(--white);
}

.qty-value {
  width: 40px;
  height: 30px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-sm);
  font-weight: 600;
  border-left: 1px solid var(--light-gray);
  border-right: 1px solid var(--light-gray);
}

.cart-item-remove {
  position: absolute;
  top: var(--space-md);
  right: 0;
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--gray);
  font-size: var(--font-size-sm);
  border-radius: var(--border-radius-full);
  transition: all var(--transition-fast);
}

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

/* Cart Empty */
.cart-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--space-3xl) var(--space-lg);
  text-align: center;
}

.cart-empty i {
  font-size: 48px;
  color: var(--light-gray);
  margin-bottom: var(--space-md);
}

.cart-empty p {
  color: var(--gray);
}

/* Cart Footer */
.cart-footer {
  border-top: 1px solid var(--light-gray);
  padding: var(--space-lg);
  flex-shrink: 0;
}

.cart-subtotal-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-xs) 0;
  font-size: var(--font-size-sm);
}

.cart-subtotal-row.total {
  font-size: var(--font-size-lg);
  font-weight: 700;
  color: var(--charcoal);
  border-top: 2px solid var(--charcoal);
  margin-top: var(--space-sm);
  padding-top: var(--space-sm);
}

.cart-discount {
  background: var(--success-light);
  color: var(--success);
  border-radius: var(--border-radius-sm);
  padding: var(--space-sm) var(--space-md);
  margin: var(--space-sm) 0;
  font-size: var(--font-size-xs);
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.btn-checkout {
  width: 100%;
  height: 48px;
  margin-top: var(--space-md);
  border-radius: var(--border-radius);
  background: var(--secondary);
  color: var(--white);
  font-size: var(--font-size-base);
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  transition: all var(--transition);
}

.btn-checkout:hover {
  background: var(--secondary-dark);
  color: var(--white);
  box-shadow: 0 4px 16px rgba(var(--secondary-rgb), 0.4);
}

.cart-continue {
  display: block;
  text-align: center;
  margin-top: var(--space-sm);
  font-size: var(--font-size-sm);
  color: var(--gray);
  transition: color var(--transition);
}

.cart-continue:hover {
  color: var(--primary);
}


/* ============================================================
   9. CHECKOUT - 4-Step Flow
   ============================================================ */

.checkout-page {
  padding: var(--space-2xl) 0;
  min-height: 80vh;
}

/* Step Indicator */
.checkout-steps {
  display: flex;
  justify-content: center;
  align-items: center;
  margin-bottom: var(--space-2xl);
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

.checkout-step {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  position: relative;
}

.checkout-step-number {
  width: 40px;
  height: 40px;
  border-radius: var(--border-radius-full);
  background: var(--light-gray);
  color: var(--gray);
  font-size: var(--font-size-sm);
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition);
  flex-shrink: 0;
}

.checkout-step-label {
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--gray);
  transition: color var(--transition);
  white-space: nowrap;
}

.checkout-step.active .checkout-step-number {
  background: var(--primary);
  color: var(--white);
}

.checkout-step.active .checkout-step-label {
  color: var(--primary);
  font-weight: 600;
}

.checkout-step.completed .checkout-step-number {
  background: var(--success);
  color: var(--white);
}

.checkout-step.completed .checkout-step-label {
  color: var(--success);
}

.checkout-step-connector {
  width: 60px;
  height: 2px;
  background: var(--light-gray);
  margin: 0 var(--space-sm);
  flex-shrink: 0;
}

.checkout-step-connector.completed {
  background: var(--success);
}

/* Checkout Layout */
.checkout-layout {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: var(--space-xl);
}

.checkout-form-area {
  background: var(--white);
  border-radius: var(--border-radius-lg);
  padding: var(--space-xl);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-color);
}

.checkout-form-area h3 {
  font-size: var(--font-size-xl);
  margin-bottom: var(--space-lg);
  padding-bottom: var(--space-md);
  border-bottom: 2px solid var(--light-gray);
}

/* Checkout Summary Sidebar */
.checkout-summary {
  background: var(--white);
  border-radius: var(--border-radius-lg);
  padding: var(--space-xl);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-color);
  align-self: start;
  position: sticky;
  top: calc(var(--header-height) + var(--space-lg));
}

.checkout-summary h4 {
  font-size: var(--font-size-lg);
  margin-bottom: var(--space-md);
}

.checkout-summary-item {
  display: flex;
  gap: var(--space-md);
  padding: var(--space-sm) 0;
  border-bottom: 1px solid var(--light-gray);
}

.checkout-summary-item img {
  width: 56px;
  height: 56px;
  border-radius: var(--border-radius-sm);
  object-fit: cover;
}

.checkout-summary-totals {
  margin-top: var(--space-md);
  padding-top: var(--space-md);
}

/* Delivery Options */
.delivery-option {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-md);
  border: 2px solid var(--light-gray);
  border-radius: var(--border-radius);
  margin-bottom: var(--space-md);
  cursor: pointer;
  transition: all var(--transition);
}

.delivery-option:hover {
  border-color: var(--primary-light);
}

.delivery-option.selected {
  border-color: var(--primary);
  background: rgba(var(--primary-rgb), 0.04);
}

.delivery-option input[type="radio"] {
  accent-color: var(--primary);
  width: 18px;
  height: 18px;
}

/* Payment Methods */
.payment-method {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-md);
  border: 2px solid var(--light-gray);
  border-radius: var(--border-radius);
  margin-bottom: var(--space-md);
  cursor: pointer;
  transition: all var(--transition);
}

.payment-method:hover {
  border-color: var(--primary-light);
}

.payment-method.selected {
  border-color: var(--primary);
  background: rgba(var(--primary-rgb), 0.04);
}

.payment-method-icon {
  width: 48px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--border-radius-sm);
  background: var(--off-white);
}

/* Confirmation Step */
.checkout-confirmation {
  text-align: center;
  padding: var(--space-3xl) var(--space-xl);
}

.checkout-confirmation .success-icon {
  width: 80px;
  height: 80px;
  border-radius: var(--border-radius-full);
  background: var(--success-light);
  color: var(--success);
  font-size: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-lg);
}

.checkout-confirmation h2 {
  margin-bottom: var(--space-sm);
}

.order-number {
  font-size: var(--font-size-lg);
  font-weight: 700;
  color: var(--primary);
  background: rgba(var(--primary-rgb), 0.1);
  display: inline-block;
  padding: var(--space-sm) var(--space-lg);
  border-radius: var(--border-radius);
  margin: var(--space-md) 0;
}

/* Checkout Navigation */
.checkout-nav {
  display: flex;
  justify-content: space-between;
  margin-top: var(--space-xl);
  padding-top: var(--space-lg);
  border-top: 1px solid var(--light-gray);
}


/* ============================================================
   10. FOOTER
   ============================================================ */

.footer {
  background: var(--charcoal);
  color: var(--light-gray);
  padding-top: var(--space-4xl);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr 1.2fr;
  gap: var(--space-2xl);
  padding-bottom: var(--space-2xl);
}

.footer-brand .logo-text {
  font-size: var(--font-size-xl);
  margin-bottom: var(--space-md);
}

.footer-brand p {
  color: var(--gray);
  font-size: var(--font-size-sm);
  line-height: 1.7;
}

.footer-contact-info {
  margin-top: var(--space-md);
}

.footer-contact-info li {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-xs) 0;
  font-size: var(--font-size-sm);
  color: var(--gray);
}

.footer-contact-info li i {
  color: var(--primary);
  width: 18px;
}

.footer-column h4 {
  color: var(--white);
  font-size: var(--font-size-base);
  font-weight: 600;
  margin-bottom: var(--space-lg);
  position: relative;
}

.footer-column h4::after {
  content: '';
  position: absolute;
  bottom: -8px;
  left: 0;
  width: 30px;
  height: 3px;
  background: var(--secondary);
  border-radius: 2px;
}

.footer-links li {
  padding: var(--space-xs) 0;
}

.footer-links a {
  font-size: var(--font-size-sm);
  color: var(--gray);
  transition: all var(--transition);
}

.footer-links a:hover {
  color: var(--primary-light);
  padding-left: var(--space-sm);
}

/* Newsletter */
.footer-newsletter p {
  font-size: var(--font-size-sm);
  margin-bottom: var(--space-md);
}

.newsletter-form {
  display: flex;
  gap: var(--space-sm);
}

.newsletter-form input {
  flex: 1;
  height: 42px;
  padding: 0 var(--space-md);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: var(--border-radius);
  background: rgba(255, 255, 255, 0.08);
  color: var(--white);
  font-size: var(--font-size-sm);
  transition: border-color var(--transition);
}

.newsletter-form input::placeholder {
  color: var(--gray);
}

.newsletter-form input:focus {
  border-color: var(--primary);
}

.newsletter-form button {
  height: 42px;
  padding: 0 var(--space-lg);
  border-radius: var(--border-radius);
  background: var(--secondary);
  color: var(--white);
  font-size: var(--font-size-sm);
  font-weight: 600;
  transition: background var(--transition);
}

.newsletter-form button:hover {
  background: var(--secondary-dark);
}

/* Social Icons */
.social-icons {
  display: flex;
  gap: var(--space-sm);
  margin-top: var(--space-lg);
}

.social-icon {
  width: 38px;
  height: 38px;
  border-radius: var(--border-radius-full);
  background: rgba(255, 255, 255, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--gray);
  font-size: var(--font-size-md);
  transition: all var(--transition);
}

.social-icon:hover {
  color: var(--white);
}

.social-icon.facebook:hover { background: #1877F2; }
.social-icon.instagram:hover { background: #E4405F; }
.social-icon.twitter:hover { background: #1DA1F2; }
.social-icon.youtube:hover { background: #FF0000; }
.social-icon.tiktok:hover { background: #000000; }
.social-icon.whatsapp:hover { background: #25D366; }

/* Footer Bottom */
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: var(--space-lg) 0;
}

.footer-bottom .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-bottom p {
  font-size: var(--font-size-xs);
  color: var(--gray);
  margin: 0;
}

.payment-icons {
  display: flex;
  gap: var(--space-sm);
  align-items: center;
}

.payment-icon {
  height: 28px;
  width: auto;
  opacity: 0.6;
  transition: opacity var(--transition);
}

.payment-icon:hover {
  opacity: 1;
}


/* ============================================================
   11. MODALS
   ============================================================ */

.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(4px);
  z-index: var(--z-modal);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-lg);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition);
}

.modal-overlay.active {
  opacity: 1;
  visibility: visible;
}

.modal {
  background: var(--white);
  border-radius: var(--border-radius-xl);
  width: 100%;
  max-width: 500px;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow-xl);
  transform: scale(0.9) translateY(20px);
  transition: transform var(--transition);
}

.modal-overlay.active .modal {
  transform: scale(1) translateY(0);
}

.modal-lg { max-width: 700px; }
.modal-xl { max-width: 900px; }

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

.modal-header h3 {
  font-size: var(--font-size-lg);
}

.modal-close {
  width: 36px;
  height: 36px;
  border-radius: var(--border-radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--gray);
  font-size: var(--font-size-lg);
  transition: all var(--transition-fast);
}

.modal-close:hover {
  background: var(--off-white);
  color: var(--dark);
}

.modal-body {
  padding: var(--space-xl);
}

.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: var(--space-sm);
  padding: var(--space-lg) var(--space-xl);
  border-top: 1px solid var(--light-gray);
}

/* Login / Register Modal */
.auth-tabs {
  display: flex;
  border-bottom: 2px solid var(--light-gray);
  margin-bottom: var(--space-lg);
}

.auth-tab {
  flex: 1;
  padding: var(--space-md);
  text-align: center;
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--gray);
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  transition: all var(--transition);
  cursor: pointer;
}

.auth-tab.active {
  color: var(--primary);
  border-bottom-color: var(--primary);
}

.auth-divider {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  margin: var(--space-lg) 0;
  color: var(--gray);
  font-size: var(--font-size-sm);
}

.auth-divider::before,
.auth-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--light-gray);
}

.social-login-btns {
  display: flex;
  gap: var(--space-sm);
}

.social-login-btns button {
  flex: 1;
  height: 42px;
  border-radius: var(--border-radius);
  border: 1px solid var(--light-gray);
  font-size: var(--font-size-sm);
  font-weight: 500;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  transition: all var(--transition);
}

.social-login-btns button:hover {
  background: var(--off-white);
}

/* Quick View Modal */
.quick-view-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
}

.quick-view-image {
  border-radius: var(--border-radius);
  overflow: hidden;
  aspect-ratio: 1;
  background: var(--off-white);
}

.quick-view-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* Payment Confirmation */
.payment-confirmation {
  text-align: center;
  padding: var(--space-xl) 0;
}

.payment-confirmation .check-animation {
  width: 80px;
  height: 80px;
  border-radius: var(--border-radius-full);
  background: var(--success-light);
  color: var(--success);
  font-size: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-lg);
  animation: pulse 1.5s ease infinite;
}


/* ============================================================
   12. ADMIN PANEL
   ============================================================ */

.admin-layout {
  display: flex;
  min-height: 100vh;
}

/* Admin Sidebar */
.admin-sidebar {
  width: var(--sidebar-width);
  background: var(--charcoal);
  color: var(--white);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  z-index: var(--z-fixed);
  transition: width var(--transition);
}

.admin-sidebar.collapsed {
  width: 72px;
}

.admin-sidebar-header {
  padding: var(--space-lg);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.admin-sidebar-header .logo-text {
  font-size: var(--font-size-base);
}

.admin-nav {
  flex: 1;
  padding: var(--space-md) 0;
  overflow-y: auto;
}

.admin-nav-section {
  margin-bottom: var(--space-md);
}

.admin-nav-section-title {
  font-size: var(--font-size-xs);
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--gray);
  padding: var(--space-sm) var(--space-lg);
  font-weight: 600;
}

.admin-nav-link {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-sm) var(--space-lg);
  color: var(--gray);
  font-size: var(--font-size-sm);
  font-weight: 500;
  transition: all var(--transition-fast);
  border-left: 3px solid transparent;
}

.admin-nav-link:hover {
  color: var(--white);
  background: rgba(255, 255, 255, 0.06);
}

.admin-nav-link.active {
  color: var(--white);
  background: rgba(255, 255, 255, 0.1);
  border-left-color: var(--primary);
}

.admin-nav-link i {
  width: 20px;
  text-align: center;
  font-size: var(--font-size-base);
}

.admin-nav-link .nav-badge {
  margin-left: auto;
  background: var(--danger);
  color: var(--white);
  font-size: 10px;
  font-weight: 700;
  padding: 2px 7px;
  border-radius: 10px;
}

.admin-sidebar-footer {
  padding: var(--space-lg);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

/* Admin Main Content */
.admin-main {
  flex: 1;
  margin-left: var(--sidebar-width);
  background: var(--bg-section);
  min-height: 100vh;
  transition: margin-left var(--transition);
}

.admin-sidebar.collapsed ~ .admin-main {
  margin-left: 72px;
}

/* Admin Top Bar */
.admin-topbar {
  height: 64px;
  background: var(--white);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--space-xl);
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
}

.admin-topbar-left {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.admin-topbar-right {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.admin-page-title {
  font-size: var(--font-size-lg);
  font-weight: 600;
}

/* Admin Content */
.admin-content {
  padding: var(--space-xl);
}

/* Dashboard KPI Cards */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-lg);
  margin-bottom: var(--space-xl);
}

.kpi-card {
  background: var(--white);
  border-radius: var(--border-radius-lg);
  padding: var(--space-xl);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-color);
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}

.kpi-card:hover {
  box-shadow: var(--shadow);
  transform: translateY(-2px);
}

.kpi-card::after {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 80px;
  height: 80px;
  border-radius: var(--border-radius-full);
  opacity: 0.08;
  transform: translate(20px, -20px);
}

.kpi-card.kpi-sales::after { background: var(--primary); }
.kpi-card.kpi-orders::after { background: var(--secondary); }
.kpi-card.kpi-customers::after { background: var(--success); }
.kpi-card.kpi-revenue::after { background: var(--warning); }

.kpi-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-md);
}

.kpi-card-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--border-radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-xl);
}

.kpi-card.kpi-sales .kpi-card-icon { background: rgba(var(--primary-rgb), 0.1); color: var(--primary); }
.kpi-card.kpi-orders .kpi-card-icon { background: rgba(var(--secondary-rgb), 0.1); color: var(--secondary); }
.kpi-card.kpi-customers .kpi-card-icon { background: rgba(40, 167, 69, 0.1); color: var(--success); }
.kpi-card.kpi-revenue .kpi-card-icon { background: rgba(255, 193, 7, 0.1); color: var(--warning); }

.kpi-card-trend {
  font-size: var(--font-size-xs);
  font-weight: 600;
  padding: 2px 8px;
  border-radius: var(--border-radius-sm);
}

.kpi-card-trend.up {
  background: var(--success-light);
  color: var(--success);
}

.kpi-card-trend.down {
  background: var(--danger-light);
  color: var(--danger);
}

.kpi-card-value {
  font-size: var(--font-size-2xl);
  font-weight: 800;
  color: var(--charcoal);
  margin-bottom: var(--space-xs);
}

.kpi-card-label {
  font-size: var(--font-size-sm);
  color: var(--gray);
}

/* Data Tables */
.data-table-wrapper {
  background: var(--white);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-color);
  overflow: hidden;
}

.data-table-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-lg);
  border-bottom: 1px solid var(--light-gray);
}

.data-table-header h4 {
  font-size: var(--font-size-lg);
}

.data-table-actions {
  display: flex;
  gap: var(--space-sm);
}

.data-table {
  width: 100%;
  border-collapse: collapse;
}

.data-table thead th {
  padding: var(--space-md) var(--space-lg);
  text-align: left;
  font-size: var(--font-size-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--gray);
  background: var(--off-white);
  border-bottom: 1px solid var(--light-gray);
  white-space: nowrap;
}

.data-table tbody td {
  padding: var(--space-md) var(--space-lg);
  font-size: var(--font-size-sm);
  color: var(--dark-gray);
  border-bottom: 1px solid var(--light-gray);
  vertical-align: middle;
}

.data-table tbody tr:last-child td {
  border-bottom: none;
}

.data-table tbody tr:hover {
  background: rgba(var(--primary-rgb), 0.02);
}

.data-table .table-product {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.data-table .table-product img {
  width: 40px;
  height: 40px;
  border-radius: var(--border-radius-sm);
  object-fit: cover;
}

.data-table .table-actions {
  display: flex;
  gap: var(--space-xs);
}

.data-table .table-actions button {
  width: 32px;
  height: 32px;
  border-radius: var(--border-radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-sm);
  color: var(--gray);
  transition: all var(--transition-fast);
}

.data-table .table-actions button:hover {
  background: var(--off-white);
  color: var(--primary);
}

.data-table .table-actions button.delete:hover {
  background: var(--danger-light);
  color: var(--danger);
}

.data-table-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-md) var(--space-lg);
  border-top: 1px solid var(--light-gray);
  font-size: var(--font-size-sm);
  color: var(--gray);
}

/* Chart Area */
.chart-card {
  background: var(--white);
  border-radius: var(--border-radius-lg);
  padding: var(--space-xl);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-color);
  margin-bottom: var(--space-lg);
}

.chart-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-lg);
}

.chart-card-header h4 {
  font-size: var(--font-size-lg);
}

.chart-area {
  width: 100%;
  min-height: 300px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.charts-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: var(--space-lg);
  margin-bottom: var(--space-lg);
}

/* Inventory Grid */
.inventory-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: var(--space-lg);
}

.inventory-item {
  background: var(--white);
  border-radius: var(--border-radius);
  padding: var(--space-md);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-color);
  display: flex;
  gap: var(--space-md);
  align-items: center;
}

.inventory-item-image {
  width: 60px;
  height: 60px;
  border-radius: var(--border-radius-sm);
  overflow: hidden;
  flex-shrink: 0;
  background: var(--off-white);
}

.inventory-item-info h5 {
  font-size: var(--font-size-sm);
  margin-bottom: var(--space-xs);
}

.inventory-stock {
  font-size: var(--font-size-xs);
  font-weight: 600;
}

.inventory-stock.low {
  color: var(--danger);
}

.inventory-stock.medium {
  color: var(--warning);
}

.inventory-stock.good {
  color: var(--success);
}


/* ============================================================
   13. POS - Point of Sale
   ============================================================ */

.pos-layout {
  display: grid;
  grid-template-columns: 1fr 400px;
  height: 100vh;
  overflow: hidden;
}

/* POS Left - Products */
.pos-products {
  display: flex;
  flex-direction: column;
  background: var(--bg-section);
  overflow: hidden;
}

.pos-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-md) var(--space-lg);
  background: var(--white);
  border-bottom: 1px solid var(--border-color);
}

.pos-search {
  position: relative;
  flex: 1;
  max-width: 400px;
}

.pos-search input {
  width: 100%;
  height: 42px;
  padding: 0 var(--space-md) 0 42px;
  border: 2px solid var(--light-gray);
  border-radius: var(--border-radius);
  font-size: var(--font-size-sm);
}

.pos-search input:focus {
  border-color: var(--primary);
}

.pos-search i {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--gray);
}

.pos-categories {
  display: flex;
  gap: var(--space-sm);
  padding: var(--space-md) var(--space-lg);
  background: var(--white);
  border-bottom: 1px solid var(--border-color);
  overflow-x: auto;
}

.pos-category-btn {
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--border-radius);
  font-size: var(--font-size-xs);
  font-weight: 600;
  white-space: nowrap;
  border: 1px solid var(--light-gray);
  transition: all var(--transition-fast);
}

.pos-category-btn:hover,
.pos-category-btn.active {
  background: var(--primary);
  color: var(--white);
  border-color: var(--primary);
}

.pos-product-grid {
  flex: 1;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: var(--space-md);
  padding: var(--space-lg);
  overflow-y: auto;
  align-content: start;
}

.pos-product-card {
  background: var(--white);
  border-radius: var(--border-radius);
  padding: var(--space-sm);
  box-shadow: var(--shadow-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
  border: 2px solid transparent;
}

.pos-product-card:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow);
}

.pos-product-card img {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
  border-radius: var(--border-radius-sm);
  margin-bottom: var(--space-sm);
}

.pos-product-card h5 {
  font-size: var(--font-size-xs);
  font-weight: 600;
  margin-bottom: var(--space-xs);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.pos-product-card .pos-price {
  font-size: var(--font-size-sm);
  font-weight: 700;
  color: var(--primary);
}

.pos-product-card .pos-stock {
  font-size: var(--font-size-xs);
  color: var(--gray);
}

/* POS Right - Cart & Payment */
.pos-cart-panel {
  display: flex;
  flex-direction: column;
  background: var(--white);
  border-left: 1px solid var(--border-color);
  overflow: hidden;
}

.pos-cart-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-md) var(--space-lg);
  border-bottom: 1px solid var(--light-gray);
}

.pos-cart-header h4 {
  font-size: var(--font-size-base);
}

.pos-customer-select {
  padding: var(--space-md) var(--space-lg);
  border-bottom: 1px solid var(--light-gray);
}

.pos-cart-items {
  flex: 1;
  overflow-y: auto;
  padding: var(--space-sm) var(--space-lg);
}

.pos-cart-item {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) 0;
  border-bottom: 1px solid var(--light-gray);
  font-size: var(--font-size-sm);
}

.pos-cart-item:last-child {
  border-bottom: none;
}

.pos-cart-item-name {
  flex: 1;
  font-weight: 500;
  min-width: 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.pos-cart-item-qty {
  width: 60px;
  text-align: center;
}

.pos-cart-item-total {
  width: 80px;
  text-align: right;
  font-weight: 700;
  color: var(--charcoal);
}

/* POS Payment */
.pos-payment {
  border-top: 2px solid var(--charcoal);
  padding: var(--space-lg);
}

.pos-total-row {
  display: flex;
  justify-content: space-between;
  padding: var(--space-xs) 0;
  font-size: var(--font-size-sm);
}

.pos-total-row.grand-total {
  font-size: var(--font-size-xl);
  font-weight: 800;
  color: var(--charcoal);
  border-top: 1px solid var(--light-gray);
  padding-top: var(--space-sm);
  margin-top: var(--space-sm);
}

.pos-payment-methods {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-sm);
  margin: var(--space-md) 0;
}

.pos-pay-method {
  padding: var(--space-sm);
  border: 2px solid var(--light-gray);
  border-radius: var(--border-radius);
  text-align: center;
  font-size: var(--font-size-xs);
  font-weight: 600;
  transition: all var(--transition-fast);
}

.pos-pay-method:hover,
.pos-pay-method.active {
  border-color: var(--primary);
  background: rgba(var(--primary-rgb), 0.05);
  color: var(--primary);
}

.pos-pay-btn {
  width: 100%;
  height: 52px;
  border-radius: var(--border-radius);
  background: var(--success);
  color: var(--white);
  font-size: var(--font-size-lg);
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  transition: background var(--transition);
}

.pos-pay-btn:hover {
  background: #218838;
}

/* Receipt Preview */
.receipt-preview {
  background: var(--white);
  border: 1px dashed var(--gray);
  border-radius: var(--border-radius);
  padding: var(--space-xl);
  max-width: 320px;
  margin: 0 auto;
  font-family: 'Courier New', monospace;
}

.receipt-preview .receipt-header {
  text-align: center;
  border-bottom: 1px dashed var(--dark);
  padding-bottom: var(--space-md);
  margin-bottom: var(--space-md);
}

.receipt-preview .receipt-header h4 {
  font-size: var(--font-size-base);
}

.receipt-preview .receipt-header p {
  font-size: var(--font-size-xs);
  color: var(--dark-gray);
}

.receipt-line {
  display: flex;
  justify-content: space-between;
  font-size: var(--font-size-xs);
  padding: 2px 0;
}

.receipt-divider {
  border-top: 1px dashed var(--dark);
  margin: var(--space-sm) 0;
}

.receipt-total {
  font-size: var(--font-size-base);
  font-weight: 700;
}

.receipt-footer {
  text-align: center;
  margin-top: var(--space-md);
  padding-top: var(--space-md);
  border-top: 1px dashed var(--dark);
  font-size: var(--font-size-xs);
}


/* ============================================================
   14. FORMS
   ============================================================ */

.form-group {
  margin-bottom: var(--space-lg);
}

.form-label {
  display: block;
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--dark-gray);
  margin-bottom: var(--space-xs);
}

.form-label .required {
  color: var(--danger);
  margin-left: 2px;
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: 0 var(--space-md);
  border: 2px solid var(--light-gray);
  border-radius: var(--border-radius);
  font-size: var(--font-size-sm);
  color: var(--dark);
  background: var(--white);
  transition: all var(--transition);
}

.form-input,
.form-select {
  height: 44px;
}

.form-textarea {
  padding: var(--space-md);
  min-height: 120px;
  resize: vertical;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(var(--primary-rgb), 0.12);
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--gray);
}

/* Validation States */
.form-input.is-valid,
.form-select.is-valid {
  border-color: var(--success);
}

.form-input.is-invalid,
.form-select.is-invalid {
  border-color: var(--danger);
}

.form-feedback {
  font-size: var(--font-size-xs);
  margin-top: var(--space-xs);
}

.form-feedback.valid { color: var(--success); }
.form-feedback.invalid { color: var(--danger); }

.form-help {
  font-size: var(--font-size-xs);
  color: var(--gray);
  margin-top: var(--space-xs);
}

/* Input with Icon */
.input-icon-wrapper {
  position: relative;
}

.input-icon-wrapper .form-input {
  padding-left: 42px;
}

.input-icon-wrapper i {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--gray);
  font-size: var(--font-size-sm);
}

/* Input Group */
.input-group {
  display: flex;
}

.input-group .form-input {
  border-radius: var(--border-radius) 0 0 var(--border-radius);
}

.input-group-append {
  height: 44px;
  padding: 0 var(--space-md);
  background: var(--off-white);
  border: 2px solid var(--light-gray);
  border-left: none;
  border-radius: 0 var(--border-radius) var(--border-radius) 0;
  display: flex;
  align-items: center;
  font-size: var(--font-size-sm);
  color: var(--gray);
}

/* Checkbox & Radio */
.form-check {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-sm);
  cursor: pointer;
}

.form-check input[type="checkbox"],
.form-check input[type="radio"] {
  width: 18px;
  height: 18px;
  accent-color: var(--primary);
  cursor: pointer;
}

.form-check label {
  font-size: var(--font-size-sm);
  color: var(--dark-gray);
  cursor: pointer;
}

/* Toggle Switch */
.toggle-switch {
  position: relative;
  width: 48px;
  height: 26px;
}

.toggle-switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

.toggle-slider {
  position: absolute;
  inset: 0;
  background: var(--light-gray);
  border-radius: 26px;
  cursor: pointer;
  transition: background var(--transition);
}

.toggle-slider::before {
  content: '';
  position: absolute;
  left: 3px;
  top: 3px;
  width: 20px;
  height: 20px;
  border-radius: var(--border-radius-full);
  background: var(--white);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition);
}

.toggle-switch input:checked + .toggle-slider {
  background: var(--primary);
}

.toggle-switch input:checked + .toggle-slider::before {
  transform: translateX(22px);
}

/* Form Row */
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
}

.form-row-3 {
  grid-template-columns: 1fr 1fr 1fr;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: 0 var(--space-xl);
  height: 44px;
  border-radius: var(--border-radius);
  font-size: var(--font-size-sm);
  font-weight: 600;
  border: 2px solid transparent;
  transition: all var(--transition);
  white-space: nowrap;
  cursor: pointer;
}

.btn:active {
  transform: scale(0.97);
}

.btn-primary {
  background: var(--primary);
  color: var(--white);
}

.btn-primary:hover {
  background: var(--primary-dark);
  color: var(--white);
  box-shadow: 0 4px 12px rgba(var(--primary-rgb), 0.35);
}

.btn-secondary {
  background: var(--secondary);
  color: var(--white);
}

.btn-secondary:hover {
  background: var(--secondary-dark);
  color: var(--white);
  box-shadow: 0 4px 12px rgba(var(--secondary-rgb), 0.35);
}

.btn-success {
  background: var(--success);
  color: var(--white);
}

.btn-success:hover {
  background: #218838;
  color: var(--white);
}

.btn-danger {
  background: var(--danger);
  color: var(--white);
}

.btn-danger:hover {
  background: #C82333;
  color: var(--white);
}

.btn-outline-primary {
  background: transparent;
  border-color: var(--primary);
  color: var(--primary);
}

.btn-outline-primary:hover {
  background: var(--primary);
  color: var(--white);
}

.btn-outline-secondary {
  background: transparent;
  border-color: var(--secondary);
  color: var(--secondary);
}

.btn-outline-secondary:hover {
  background: var(--secondary);
  color: var(--white);
}

.btn-ghost {
  background: transparent;
  color: var(--dark-gray);
}

.btn-ghost:hover {
  background: var(--off-white);
}

.btn-sm {
  height: 34px;
  padding: 0 var(--space-md);
  font-size: var(--font-size-xs);
}

.btn-lg {
  height: 52px;
  padding: 0 var(--space-2xl);
  font-size: var(--font-size-base);
}

.btn-block {
  width: 100%;
}

.btn-icon {
  width: 44px;
  padding: 0;
}

.btn-icon.btn-sm {
  width: 34px;
}

.btn:disabled,
.btn.disabled {
  opacity: 0.55;
  cursor: not-allowed;
  pointer-events: none;
}


/* ============================================================
   15. UTILITIES - Badges, Alerts, Toasts, Spinners, Pagination, Tabs
   ============================================================ */

/* Badges */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 3px 10px;
  border-radius: var(--border-radius-sm);
  font-size: var(--font-size-xs);
  font-weight: 700;
  line-height: 1;
}

.badge-primary { background: rgba(var(--primary-rgb), 0.12); color: var(--primary); }
.badge-secondary { background: rgba(var(--secondary-rgb), 0.12); color: var(--secondary); }
.badge-success { background: var(--success-light); color: var(--success); }
.badge-danger { background: var(--danger-light); color: var(--danger); }
.badge-warning { background: var(--warning-light); color: #856404; }
.badge-info { background: var(--info-light); color: var(--info); }

.badge-pill {
  border-radius: 50px;
  padding: 3px 12px;
}

/* Alerts */
.alert {
  padding: var(--space-md) var(--space-lg);
  border-radius: var(--border-radius);
  font-size: var(--font-size-sm);
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
  margin-bottom: var(--space-md);
  border-left: 4px solid;
}

.alert i {
  font-size: var(--font-size-lg);
  flex-shrink: 0;
  margin-top: 1px;
}

.alert-content {
  flex: 1;
}

.alert-content strong {
  display: block;
  margin-bottom: var(--space-xs);
}

.alert-close {
  margin-left: auto;
  color: inherit;
  opacity: 0.6;
  transition: opacity var(--transition-fast);
}

.alert-close:hover {
  opacity: 1;
}

.alert-success {
  background: var(--success-light);
  border-color: var(--success);
  color: #155724;
}

.alert-danger {
  background: var(--danger-light);
  border-color: var(--danger);
  color: #721C24;
}

.alert-warning {
  background: var(--warning-light);
  border-color: var(--warning);
  color: #856404;
}

.alert-info {
  background: var(--info-light);
  border-color: var(--info);
  color: #0C5460;
}

/* Toasts / Notifications */
.toast-container {
  position: fixed;
  top: var(--space-lg);
  right: var(--space-lg);
  z-index: var(--z-toast);
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  max-width: 380px;
}

.toast {
  background: var(--white);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-lg);
  padding: var(--space-md) var(--space-lg);
  display: flex;
  align-items: center;
  gap: var(--space-md);
  animation: slideInRight var(--transition-slow) ease;
  border-left: 4px solid var(--primary);
}

.toast.toast-success { border-left-color: var(--success); }
.toast.toast-danger { border-left-color: var(--danger); }
.toast.toast-warning { border-left-color: var(--warning); }

.toast-icon {
  font-size: var(--font-size-lg);
  flex-shrink: 0;
}

.toast.toast-success .toast-icon { color: var(--success); }
.toast.toast-danger .toast-icon { color: var(--danger); }
.toast.toast-warning .toast-icon { color: var(--warning); }

.toast-body {
  flex: 1;
}

.toast-title {
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--charcoal);
}

.toast-message {
  font-size: var(--font-size-xs);
  color: var(--gray);
  margin: 0;
}

.toast-close {
  color: var(--gray);
  font-size: var(--font-size-sm);
  transition: color var(--transition-fast);
}

.toast-close:hover {
  color: var(--dark);
}

.toast.exiting {
  animation: slideOutRight var(--transition) ease forwards;
}

/* Loading Spinners */
.spinner {
  display: inline-block;
  width: 32px;
  height: 32px;
  border: 3px solid var(--light-gray);
  border-top-color: var(--primary);
  border-radius: var(--border-radius-full);
  animation: spin 0.7s linear infinite;
}

.spinner-sm { width: 20px; height: 20px; border-width: 2px; }
.spinner-lg { width: 48px; height: 48px; border-width: 4px; }

.spinner-secondary { border-top-color: var(--secondary); }

.loading-overlay {
  position: absolute;
  inset: 0;
  background: rgba(255, 255, 255, 0.85);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10;
  border-radius: inherit;
}

/* Dots Loader */
.dots-loader {
  display: flex;
  gap: 6px;
}

.dots-loader span {
  width: 8px;
  height: 8px;
  border-radius: var(--border-radius-full);
  background: var(--primary);
  animation: dotPulse 1.2s ease-in-out infinite;
}

.dots-loader span:nth-child(2) { animation-delay: 0.15s; }
.dots-loader span:nth-child(3) { animation-delay: 0.3s; }

/* Pagination */
.pagination {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.pagination-btn {
  min-width: 36px;
  height: 36px;
  border-radius: var(--border-radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--dark-gray);
  border: 1px solid var(--light-gray);
  transition: all var(--transition-fast);
  padding: 0 var(--space-sm);
}

.pagination-btn:hover {
  background: var(--off-white);
  border-color: var(--primary);
  color: var(--primary);
}

.pagination-btn.active {
  background: var(--primary);
  border-color: var(--primary);
  color: var(--white);
}

.pagination-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
  pointer-events: none;
}

.pagination-ellipsis {
  padding: 0 var(--space-xs);
  color: var(--gray);
}

/* Tabs */
.tabs {
  display: flex;
  border-bottom: 2px solid var(--light-gray);
  margin-bottom: var(--space-lg);
}

.tab {
  padding: var(--space-md) var(--space-xl);
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--gray);
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  transition: all var(--transition);
  cursor: pointer;
}

.tab:hover {
  color: var(--dark-gray);
}

.tab.active {
  color: var(--primary);
  border-bottom-color: var(--primary);
}

.tab-content {
  display: none;
}

.tab-content.active {
  display: block;
  animation: fadeIn var(--transition) ease;
}

/* Pill Tabs */
.tabs-pills {
  display: flex;
  gap: var(--space-sm);
  border-bottom: none;
  margin-bottom: var(--space-lg);
}

.tabs-pills .tab {
  border: none;
  border-radius: var(--border-radius);
  padding: var(--space-sm) var(--space-lg);
  margin-bottom: 0;
}

.tabs-pills .tab.active {
  background: var(--primary);
  color: var(--white);
}

/* Breadcrumbs */
.breadcrumbs {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: var(--font-size-sm);
  padding: var(--space-md) 0;
}

.breadcrumbs a {
  color: var(--gray);
}

.breadcrumbs a:hover {
  color: var(--primary);
}

.breadcrumbs .separator {
  color: var(--light-gray);
  font-size: var(--font-size-xs);
}

.breadcrumbs .current {
  color: var(--dark-gray);
  font-weight: 500;
}

/* Tooltips */
.tooltip-wrapper {
  position: relative;
}

.tooltip {
  position: absolute;
  bottom: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%);
  background: var(--dark);
  color: var(--white);
  font-size: var(--font-size-xs);
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--border-radius-sm);
  white-space: nowrap;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-fast);
  pointer-events: none;
}

.tooltip::after {
  content: '';
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  border: 5px solid transparent;
  border-top-color: var(--dark);
}

.tooltip-wrapper:hover .tooltip {
  opacity: 1;
  visibility: visible;
}

/* Progress Bar */
.progress-bar {
  width: 100%;
  height: 8px;
  background: var(--light-gray);
  border-radius: 4px;
  overflow: hidden;
}

.progress-bar-fill {
  height: 100%;
  background: var(--primary);
  border-radius: 4px;
  transition: width var(--transition-slow);
}

.progress-bar-fill.success { background: var(--success); }
.progress-bar-fill.warning { background: var(--warning); }
.progress-bar-fill.danger { background: var(--danger); }

/* Avatars */
.avatar {
  width: 40px;
  height: 40px;
  border-radius: var(--border-radius-full);
  object-fit: cover;
  border: 2px solid var(--white);
  box-shadow: var(--shadow-sm);
}

.avatar-sm { width: 32px; height: 32px; }
.avatar-lg { width: 56px; height: 56px; }

.avatar-initials {
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-sm);
  font-weight: 700;
  color: var(--white);
  background: var(--primary);
}

/* Tags */
.tag {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: 4px 10px;
  border-radius: 50px;
  font-size: var(--font-size-xs);
  font-weight: 500;
  background: var(--off-white);
  color: var(--dark-gray);
  border: 1px solid var(--border-color);
}

.tag-remove {
  font-size: 10px;
  cursor: pointer;
  opacity: 0.6;
}

.tag-remove:hover {
  opacity: 1;
}

/* Empty State */
.empty-state {
  text-align: center;
  padding: var(--space-4xl) var(--space-xl);
}

.empty-state i {
  font-size: 64px;
  color: var(--light-gray);
  margin-bottom: var(--space-lg);
}

.empty-state h3 {
  font-size: var(--font-size-xl);
  margin-bottom: var(--space-sm);
}

.empty-state p {
  color: var(--gray);
  max-width: 400px;
  margin: 0 auto var(--space-lg);
}


/* ============================================================
   16. RESPONSIVE
   ============================================================ */

/* 1200px */
@media (max-width: 1200px) {
  :root {
    --container-max: 960px;
  }

  .products-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .departments-grid {
    grid-template-columns: repeat(4, 1fr);
  }

  .footer-grid {
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
  }

  .footer-grid .footer-newsletter {
    grid-column: 1 / -1;
  }

  .kpi-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .charts-grid {
    grid-template-columns: 1fr;
  }
}

/* 1024px */
@media (max-width: 1024px) {
  .hero {
    height: 420px;
  }

  .hero-content h1 {
    font-size: var(--font-size-3xl);
  }

  .pos-layout {
    grid-template-columns: 1fr 340px;
  }

  .checkout-layout {
    grid-template-columns: 1fr 320px;
  }

  .mega-menu {
    min-width: 500px;
    grid-template-columns: repeat(2, 1fr);
  }

  .membership-grid {
    gap: var(--space-md);
  }

  .calculator-wrapper {
    grid-template-columns: 1fr;
  }

  .admin-sidebar {
    width: 72px;
  }

  .admin-sidebar .admin-nav-section-title,
  .admin-sidebar .admin-nav-link span,
  .admin-sidebar .logo-text,
  .admin-sidebar .nav-badge {
    display: none;
  }

  .admin-main {
    margin-left: 72px;
  }
}

/* 768px */
@media (max-width: 768px) {
  :root {
    --header-height: 60px;
    --font-size-4xl: 2.25rem;
    --font-size-3xl: 1.75rem;
  }

  .top-bar-left {
    display: none;
  }

  .hamburger {
    display: flex;
  }

  .search-bar {
    display: none;
  }

  .header.search-open .search-bar {
    display: block;
    position: absolute;
    top: var(--header-height);
    left: 0;
    right: 0;
    padding: var(--space-md);
    background: var(--white);
    border-bottom: 1px solid var(--border-color);
    max-width: 100%;
    z-index: var(--z-dropdown);
  }

  .main-nav {
    display: none;
  }

  /* Mobile Nav */
  .mobile-nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 300px;
    height: 100vh;
    background: var(--white);
    z-index: var(--z-modal);
    transform: translateX(-100%);
    transition: transform var(--transition-slow);
    overflow-y: auto;
    box-shadow: var(--shadow-xl);
  }

  .mobile-nav.active {
    transform: translateX(0);
  }

  .mobile-nav-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-lg);
    border-bottom: 1px solid var(--light-gray);
  }

  .mobile-nav-links a {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-md) var(--space-lg);
    font-size: var(--font-size-base);
    color: var(--dark-gray);
    border-bottom: 1px solid var(--light-gray);
  }

  .mobile-nav-links a:hover,
  .mobile-nav-links a.active {
    background: rgba(var(--primary-rgb), 0.05);
    color: var(--primary);
  }

  .hero {
    height: 360px;
  }

  .hero-content {
    padding-left: var(--space-lg);
    padding-right: var(--space-lg);
  }

  .hero-content h1 {
    font-size: var(--font-size-2xl);
  }

  .hero-buttons {
    flex-direction: column;
    gap: var(--space-sm);
  }

  .hero-buttons .btn {
    width: 100%;
  }

  .departments-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-md);
  }

  .products-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-md);
  }

  .membership-grid {
    grid-template-columns: 1fr;
    max-width: 400px;
    margin: 0 auto;
  }

  .membership-card.featured {
    transform: none;
    order: -1;
  }

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

  .checkout-steps {
    flex-wrap: wrap;
    gap: var(--space-sm);
  }

  .checkout-step-connector {
    width: 30px;
  }

  .checkout-step-label {
    display: none;
  }

  .checkout-layout {
    grid-template-columns: 1fr;
  }

  .checkout-summary {
    position: static;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-xl);
  }

  .footer-bottom .container {
    flex-direction: column;
    gap: var(--space-md);
    text-align: center;
  }

  .pos-layout {
    grid-template-columns: 1fr;
    height: auto;
  }

  .pos-products {
    min-height: 50vh;
  }

  .pos-cart-panel {
    border-left: none;
    border-top: 1px solid var(--border-color);
  }

  .quick-view-layout {
    grid-template-columns: 1fr;
  }

  .kpi-grid {
    grid-template-columns: 1fr;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .form-row-3 {
    grid-template-columns: 1fr;
  }

  .modal {
    margin: var(--space-md);
    max-height: calc(100vh - var(--space-xl));
  }

  .data-table-wrapper {
    overflow-x: auto;
  }

  .data-table {
    min-width: 600px;
  }

  .cart-sidebar {
    width: 100%;
  }

  .admin-sidebar {
    transform: translateX(-100%);
    width: var(--sidebar-width);
  }

  .admin-sidebar.mobile-open {
    transform: translateX(0);
  }

  .admin-sidebar.mobile-open .admin-nav-section-title,
  .admin-sidebar.mobile-open .admin-nav-link span,
  .admin-sidebar.mobile-open .logo-text,
  .admin-sidebar.mobile-open .nav-badge {
    display: initial;
  }

  .admin-main {
    margin-left: 0;
  }
}

/* 480px */
@media (max-width: 480px) {
  :root {
    --font-size-4xl: 1.75rem;
    --font-size-3xl: 1.5rem;
    --font-size-2xl: 1.25rem;
    --space-4xl: 3rem;
  }

  .container {
    padding: 0 var(--space-md);
  }

  .departments-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-sm);
  }

  .department-card {
    padding: var(--space-md);
  }

  .department-card-icon {
    width: 56px;
    height: 56px;
    font-size: 24px;
  }

  .products-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-sm);
  }

  .product-card-body {
    padding: var(--space-sm);
  }

  .product-card-footer {
    padding: 0 var(--space-sm) var(--space-sm);
  }

  .product-card-name {
    font-size: var(--font-size-xs);
  }

  .price-current {
    font-size: var(--font-size-base);
  }

  .hero {
    height: 300px;
  }

  .hero-content h1 {
    font-size: var(--font-size-xl);
  }

  .hero-content p {
    font-size: var(--font-size-sm);
    display: none;
  }

  .hero-arrow {
    width: 36px;
    height: 36px;
    font-size: var(--font-size-sm);
  }

  .checkout-steps {
    justify-content: space-around;
  }

  .checkout-step-connector {
    display: none;
  }

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

  .section-title h2 {
    font-size: var(--font-size-xl);
  }

  .membership-card {
    padding: var(--space-lg);
  }

  .pos-product-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-sm);
    padding: var(--space-md);
  }

  .pos-payment-methods {
    grid-template-columns: repeat(2, 1fr);
  }

  .toast-container {
    left: var(--space-md);
    right: var(--space-md);
    max-width: none;
  }

  .pagination {
    flex-wrap: wrap;
    justify-content: center;
  }

  .social-login-btns {
    flex-direction: column;
  }

  .btn-lg {
    height: 46px;
    padding: 0 var(--space-lg);
    font-size: var(--font-size-sm);
  }

  .newsletter-form {
    flex-direction: column;
  }

  .newsletter-form button {
    width: 100%;
  }

  .top-bar {
    display: none;
  }
}


/* ============================================================
   17. ANIMATIONS
   ============================================================ */

/* Fade In */
@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

.fade-in {
  animation: fadeIn var(--transition-slow) ease forwards;
}

/* Fade In Up */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in-up {
  animation: fadeInUp 0.5s ease forwards;
}

/* Fade In Down */
@keyframes fadeInDown {
  from {
    opacity: 0;
    transform: translateY(-24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in-down {
  animation: fadeInDown 0.5s ease forwards;
}

/* Slide In Left */
@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-40px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.slide-in-left {
  animation: slideInLeft 0.5s ease forwards;
}

/* Slide In Right */
@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(40px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.slide-in-right {
  animation: slideInRight 0.5s ease forwards;
}

/* Slide Out Right (Toasts) */
@keyframes slideOutRight {
  from {
    opacity: 1;
    transform: translateX(0);
  }
  to {
    opacity: 0;
    transform: translateX(100%);
  }
}

/* Scale In */
@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.85);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

.scale-in {
  animation: scaleIn 0.4s ease forwards;
}

/* Pulse */
@keyframes pulse {
  0%, 100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.08);
  }
}

.pulse {
  animation: pulse 2s ease infinite;
}

/* Cart Bounce */
@keyframes cartBounce {
  0%, 100% {
    transform: scale(1);
  }
  25% {
    transform: scale(1.25);
  }
  50% {
    transform: scale(0.95);
  }
  75% {
    transform: scale(1.1);
  }
}

.cart-bounce {
  animation: cartBounce 0.5s ease;
}

/* Spin */
@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* Dot Pulse */
@keyframes dotPulse {
  0%, 80%, 100% {
    transform: scale(0.6);
    opacity: 0.4;
  }
  40% {
    transform: scale(1);
    opacity: 1;
  }
}

/* Shake */
@keyframes shake {
  0%, 100% { transform: translateX(0); }
  10%, 30%, 50%, 70%, 90% { transform: translateX(-4px); }
  20%, 40%, 60%, 80% { transform: translateX(4px); }
}

.shake {
  animation: shake 0.6s ease;
}

/* Skeleton Loading */
@keyframes shimmer {
  0% {
    background-position: -400px 0;
  }
  100% {
    background-position: 400px 0;
  }
}

.skeleton {
  background: linear-gradient(90deg, var(--light-gray) 25%, #E0E0E0 37%, var(--light-gray) 63%);
  background-size: 800px 100%;
  animation: shimmer 1.5s ease infinite;
  border-radius: var(--border-radius-sm);
}

.skeleton-text {
  height: 14px;
  margin-bottom: var(--space-sm);
  width: 100%;
}

.skeleton-text.short {
  width: 60%;
}

.skeleton-title {
  height: 20px;
  margin-bottom: var(--space-md);
  width: 80%;
}

.skeleton-image {
  width: 100%;
  aspect-ratio: 1;
  border-radius: var(--border-radius);
}

.skeleton-avatar {
  width: 40px;
  height: 40px;
  border-radius: var(--border-radius-full);
}

.skeleton-btn {
  height: 40px;
  width: 120px;
  border-radius: var(--border-radius);
}

/* Staggered Animation Delays */
.stagger-1 { animation-delay: 0.05s; }
.stagger-2 { animation-delay: 0.1s; }
.stagger-3 { animation-delay: 0.15s; }
.stagger-4 { animation-delay: 0.2s; }
.stagger-5 { animation-delay: 0.25s; }
.stagger-6 { animation-delay: 0.3s; }
.stagger-7 { animation-delay: 0.35s; }
.stagger-8 { animation-delay: 0.4s; }

/* Scroll Animation (use with JS IntersectionObserver) */
.scroll-animate {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.6s ease;
}

.scroll-animate.visible {
  opacity: 1;
  transform: translateY(0);
}


/* ============================================================
   18. WHATSAPP - Floating Button
   ============================================================ */

.whatsapp-float {
  position: fixed;
  bottom: var(--space-xl);
  right: var(--space-xl);
  z-index: var(--z-whatsapp);
}

.whatsapp-btn {
  width: 60px;
  height: 60px;
  border-radius: var(--border-radius-full);
  background: #25D366;
  color: var(--white);
  font-size: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 16px rgba(37, 211, 102, 0.4);
  transition: all var(--transition);
  position: relative;
}

.whatsapp-btn:hover {
  background: #128C7E;
  color: var(--white);
  transform: scale(1.1);
  box-shadow: 0 6px 24px rgba(37, 211, 102, 0.5);
}

.whatsapp-btn::before {
  content: '';
  position: absolute;
  inset: -4px;
  border-radius: var(--border-radius-full);
  background: rgba(37, 211, 102, 0.25);
  animation: pulse 2s ease infinite;
  z-index: -1;
}

.whatsapp-tooltip {
  position: absolute;
  right: calc(100% + 12px);
  top: 50%;
  transform: translateY(-50%);
  background: var(--white);
  color: var(--charcoal);
  font-size: var(--font-size-sm);
  font-weight: 500;
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-md);
  white-space: nowrap;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition);
}

.whatsapp-tooltip::after {
  content: '';
  position: absolute;
  left: 100%;
  top: 50%;
  transform: translateY(-50%);
  border: 6px solid transparent;
  border-left-color: var(--white);
}

.whatsapp-float:hover .whatsapp-tooltip {
  opacity: 1;
  visibility: visible;
}


/* ============================================================
   19. PRINT - Receipt Styles for POS
   ============================================================ */

@media print {
  /* Hide everything except receipt */
  body * {
    visibility: hidden;
  }

  .receipt-preview,
  .receipt-preview * {
    visibility: visible;
  }

  .receipt-preview {
    position: absolute;
    left: 0;
    top: 0;
    width: 80mm;
    border: none;
    box-shadow: none;
    padding: 5mm;
    margin: 0;
    font-family: 'Courier New', monospace;
    font-size: 11px;
    color: #000;
    background: #fff;
  }

  /* Hide non-print elements */
  .header,
  .top-bar,
  .main-nav,
  .footer,
  .cart-sidebar,
  .cart-overlay,
  .modal-overlay,
  .whatsapp-float,
  .toast-container,
  .admin-sidebar,
  .admin-topbar,
  .pos-products,
  .pos-cart-header,
  .pos-payment,
  .pos-customer-select,
  .no-print {
    display: none !important;
  }

  /* Receipt header */
  .receipt-preview .receipt-header {
    text-align: center;
    margin-bottom: 3mm;
    padding-bottom: 3mm;
    border-bottom: 1px dashed #000;
  }

  .receipt-preview .receipt-header h4 {
    font-size: 14px;
    font-weight: bold;
    margin-bottom: 2mm;
  }

  .receipt-preview .receipt-header p {
    font-size: 10px;
    margin: 0;
    color: #000;
  }

  /* Receipt items */
  .receipt-line {
    display: flex;
    justify-content: space-between;
    font-size: 11px;
    padding: 1mm 0;
  }

  .receipt-divider {
    border-top: 1px dashed #000;
    margin: 2mm 0;
  }

  .receipt-total {
    font-size: 14px;
    font-weight: bold;
  }

  .receipt-footer {
    text-align: center;
    margin-top: 3mm;
    padding-top: 3mm;
    border-top: 1px dashed #000;
    font-size: 10px;
  }

  /* Ensure proper page breaks */
  .receipt-preview {
    page-break-inside: avoid;
  }

  /* Remove backgrounds and shadows for print */
  * {
    box-shadow: none !important;
    text-shadow: none !important;
  }

  a {
    text-decoration: none;
    color: #000;
  }

  @page {
    size: 80mm auto;
    margin: 0;
  }
}


/* ============================================================
   UTILITY CLASSES
   ============================================================ */

/* Display */
.d-none { display: none; }
.d-block { display: block; }
.d-flex { display: flex; }
.d-grid { display: grid; }
.d-inline { display: inline; }
.d-inline-flex { display: inline-flex; }

/* Flexbox */
.flex-row { flex-direction: row; }
.flex-column { flex-direction: column; }
.flex-wrap { flex-wrap: wrap; }
.flex-1 { flex: 1; }
.items-center { align-items: center; }
.items-start { align-items: flex-start; }
.items-end { align-items: flex-end; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.justify-end { justify-content: flex-end; }
.gap-xs { gap: var(--space-xs); }
.gap-sm { gap: var(--space-sm); }
.gap-md { gap: var(--space-md); }
.gap-lg { gap: var(--space-lg); }
.gap-xl { gap: var(--space-xl); }

/* Text */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }
.text-primary { color: var(--primary); }
.text-secondary { color: var(--secondary); }
.text-success { color: var(--success); }
.text-danger { color: var(--danger); }
.text-warning { color: var(--warning); }
.text-muted { color: var(--gray); }
.text-dark { color: var(--dark); }
.text-white { color: var(--white); }
.text-xs { font-size: var(--font-size-xs); }
.text-sm { font-size: var(--font-size-sm); }
.text-md { font-size: var(--font-size-md); }
.text-lg { font-size: var(--font-size-lg); }
.text-xl { font-size: var(--font-size-xl); }
.font-light { font-weight: 300; }
.font-normal { font-weight: 400; }
.font-medium { font-weight: 500; }
.font-semibold { font-weight: 600; }
.font-bold { font-weight: 700; }
.uppercase { text-transform: uppercase; }
.capitalize { text-transform: capitalize; }
.truncate {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* Spacing */
.m-0 { margin: 0; }
.mt-sm { margin-top: var(--space-sm); }
.mt-md { margin-top: var(--space-md); }
.mt-lg { margin-top: var(--space-lg); }
.mt-xl { margin-top: var(--space-xl); }
.mb-sm { margin-bottom: var(--space-sm); }
.mb-md { margin-bottom: var(--space-md); }
.mb-lg { margin-bottom: var(--space-lg); }
.mb-xl { margin-bottom: var(--space-xl); }
.mx-auto { margin-left: auto; margin-right: auto; }
.p-0 { padding: 0; }
.p-sm { padding: var(--space-sm); }
.p-md { padding: var(--space-md); }
.p-lg { padding: var(--space-lg); }
.p-xl { padding: var(--space-xl); }

/* Backgrounds */
.bg-primary { background-color: var(--primary); }
.bg-secondary { background-color: var(--secondary); }
.bg-white { background-color: var(--white); }
.bg-light { background-color: var(--off-white); }
.bg-dark { background-color: var(--dark); }

/* Borders */
.rounded { border-radius: var(--border-radius); }
.rounded-lg { border-radius: var(--border-radius-lg); }
.rounded-full { border-radius: var(--border-radius-full); }
.border { border: 1px solid var(--border-color); }
.border-top { border-top: 1px solid var(--border-color); }
.border-bottom { border-bottom: 1px solid var(--border-color); }

/* Shadows */
.shadow-sm { box-shadow: var(--shadow-sm); }
.shadow { box-shadow: var(--shadow); }
.shadow-md { box-shadow: var(--shadow-md); }
.shadow-lg { box-shadow: var(--shadow-lg); }
.shadow-none { box-shadow: none; }

/* Sizing */
.w-full { width: 100%; }
.h-full { height: 100%; }
.min-h-screen { min-height: 100vh; }

/* Overflow */
.overflow-hidden { overflow: hidden; }
.overflow-auto { overflow: auto; }
.overflow-x-auto { overflow-x: auto; }

/* Position */
.relative { position: relative; }
.absolute { position: absolute; }
.fixed { position: fixed; }
.sticky { position: sticky; }

/* Cursor */
.cursor-pointer { cursor: pointer; }

/* Visibility */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

/* Selection */
::selection {
  background: rgba(var(--primary-rgb), 0.2);
  color: var(--dark);
}

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

::-webkit-scrollbar-track {
  background: var(--off-white);
}

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

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