/* ==============================================
   MAIN STYLESHEET - ShopEasy E-commerce Website
   ============================================== */

:root {
  /* Color System */
  --primary: #3B82F6;
  --primary-light: #60A5FA;
  --primary-dark: #1D4ED8;
  
  --secondary: #14B8A6;
  --secondary-light: #5EEAD4;
  --secondary-dark: #0F766E;
  
  --accent: #F59E0B;
  --accent-light: #FCD34D;
  --accent-dark: #D97706;
  
  --success: #10B981;
  --warning: #F59E0B;
  --error: #EF4444;
  
  --gray-50: #F9FAFB;
  --gray-100: #F3F4F6;
  --gray-200: #E5E7EB;
  --gray-300: #D1D5DB;
  --gray-400: #9CA3AF;
  --gray-500: #6B7280;
  --gray-600: #4B5563;
  --gray-700: #374151;
  --gray-800: #1F2937;
  --gray-900: #111827;
  
  /* Spacing System (8px base) */
  --space-1: 0.5rem;
  --space-2: 1rem;
  --space-3: 1.5rem;
  --space-4: 2rem;
  --space-5: 2.5rem;
  --space-6: 3rem;
  
  /* Typography */
  --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-mono: 'Fira Code', 'Consolas', monospace;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  
  /* Transitions */
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-fast: all 0.15s ease-in-out;
}

/* ==============================================
   THEME VARIATIONS
   ============================================== */

.theme-dark {
  --bg-primary: var(--gray-900);
  --bg-secondary: var(--gray-800);
  --text-primary: var(--gray-100);
  --text-secondary: var(--gray-300);
  --border-color: var(--gray-700);
}

.theme-light {
  --bg-primary: #ffffff;
  --bg-secondary: var(--gray-50);
  --text-primary: var(--gray-900);
  --text-secondary: var(--gray-600);
  --border-color: var(--gray-200);
}

/* ==============================================
   BASE STYLES
   ============================================== */

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

body {
  font-family: var(--font-sans);
  line-height: 1.6;
  color: var(--text-primary);
  background-color: var(--bg-primary);
  transition: var(--transition);
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-2);
}

/* ==============================================
   TYPOGRAPHY
   ============================================== */

h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  line-height: 1.2;
  margin-bottom: var(--space-2);
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }
h5 { font-size: 1.125rem; }
h6 { font-size: 1rem; }

p {
  margin-bottom: var(--space-2);
  line-height: 1.5;
}

/* ==============================================
   BUTTONS
   ============================================== */

.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-2) var(--space-3);
  border: none;
  border-radius: 8px;
  font-size: 0.875rem;
  font-weight: 500;
  text-decoration: none;
  cursor: pointer;
  transition: var(--transition);
  text-align: center;
  white-space: nowrap;
}

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

.btn-primary:hover {
  background: var(--primary-dark);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

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

.btn-secondary:hover {
  background: var(--secondary-dark);
}

.btn-outline {
  background: transparent;
  border: 2px solid var(--primary);
  color: var(--primary);
}

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

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

.btn-full {
  width: 100%;
  justify-content: center;
}

/* ==============================================
   HEADER STYLES
   ============================================== */

.top-banner {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: white;
  padding: var(--space-1) 0;
  text-align: center;
  font-size: 0.875rem;
  animation: slideDown 0.5s ease-out;
}

.banner-text {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-1);
}

.main-header {
  background: var(--bg-primary);
  border-bottom: 1px solid var(--border-color);
  padding: var(--space-2) 0;
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(10px);
}

.header-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
}

.logo a {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  text-decoration: none;
  color: var(--primary);
  font-size: 1.5rem;
  font-weight: 700;
}

.search-bar {
  flex: 1;
  max-width: 500px;
  position: relative;
}

.search-bar form {
  display: flex;
  border: 2px solid var(--border-color);
  border-radius: 50px;
  overflow: hidden;
  transition: var(--transition);
}

.search-bar form:focus-within {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.search-bar input {
  flex: 1;
  padding: var(--space-2) var(--space-3);
  border: none;
  outline: none;
  background: transparent;
}

.search-bar button {
  padding: var(--space-2) var(--space-3);
  background: var(--primary);
  color: white;
  border: none;
  cursor: pointer;
  transition: var(--transition);
}

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

.user-actions {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.user-info {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  font-size: 0.875rem;
}

.action-btn {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-1) var(--space-2);
  text-decoration: none;
  color: var(--text-secondary);
  border-radius: 8px;
  transition: var(--transition);
  font-size: 0.875rem;
}

.action-btn:hover {
  background: var(--gray-100);
  color: var(--primary);
}

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

.cart-btn {
  position: relative;
}

.cart-count {
  position: absolute;
  top: -5px;
  right: -5px;
  background: var(--error);
  color: white;
  border-radius: 50%;
  width: 20px;
  height: 20px;
  font-size: 0.75rem;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
}

/* ==============================================
   BADGES
   ============================================== */

.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 8px;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
}

.badge-silver {
  background: linear-gradient(135deg, #C0C0C0, #E8E8E8);
  color: var(--gray-700);
}

.badge-gold {
  background: linear-gradient(135deg, #FFD700, #FFF700);
  color: var(--gray-800);
}

.badge-platinum {
  background: linear-gradient(135deg, #E5E4E2, #F7F6F4);
  color: var(--gray-700);
  border: 1px solid #D1D5DB;
}

.badge-elite {
  background: linear-gradient(135deg, #50C878, #90EE90);
  color: white;
  text-shadow: 0 1px 2px rgba(0,0,0,0.2);
}

/* ==============================================
   TOP USERS SECTION
   ============================================== */

.top-users-section {
  background: var(--bg-secondary);
  padding: var(--space-3) 0;
  border-bottom: 1px solid var(--border-color);
}

.top-users-section h3 {
  text-align: center;
  margin-bottom: var(--space-3);
  color: var(--primary);
}

.top-users-list {
  display: flex;
  justify-content: center;
  gap: var(--space-3);
  flex-wrap: wrap;
}

.top-user-item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2);
  background: var(--bg-primary);
  border-radius: 12px;
  box-shadow: var(--shadow);
  transition: var(--transition);
}

.top-user-item:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.user-avatar {
  font-size: 2rem;
  color: var(--primary);
}

.user-points {
  display: flex;
  align-items: center;
  gap: 4px;
  font-weight: 600;
  color: var(--accent);
}

.animated-clap {
  animation: bounce 2s infinite;
}

@keyframes bounce {
  0%, 20%, 50%, 80%, 100% { transform: translateY(0); }
  40% { transform: translateY(-5px); }
  60% { transform: translateY(-3px); }
}

/* ==============================================
   NAVIGATION
   ============================================== */

.main-nav {
  background: var(--bg-primary);
  border-bottom: 1px solid var(--border-color);
  padding: var(--space-1) 0;
}

.nav-items {
  display: flex;
  gap: var(--space-1);
  overflow-x: auto;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-2) var(--space-3);
  text-decoration: none;
  color: var(--text-secondary);
  border-radius: 8px;
  transition: var(--transition);
  white-space: nowrap;
  font-size: 0.875rem;
}

.nav-item:hover,
.nav-item.active {
  background: var(--primary);
  color: white;
}

/* ==============================================
   HERO BANNERS
   ============================================== */

.hero-banners {
  position: relative;
  height: 400px;
  overflow: hidden;
  border-radius: 12px;
  margin: var(--space-3) auto;
  max-width: 1200px;
}

.banner-slider {
  position: relative;
  width: 100%;
  height: 100%;
}

.banner-slide {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  transition: opacity 0.8s ease-in-out;
}

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

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

.banner-content {
  position: absolute;
  top: 50%;
  left: var(--space-4);
  transform: translateY(-50%);
  color: white;
  text-shadow: 0 2px 4px rgba(0,0,0,0.5);
}

.banner-content h2 {
  font-size: 3rem;
  margin-bottom: var(--space-2);
  animation: slideInLeft 1s ease-out;
}

.banner-indicators {
  position: absolute;
  bottom: var(--space-2);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: var(--space-1);
}

.indicator {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  border: none;
  background: rgba(255, 255, 255, 0.5);
  cursor: pointer;
  transition: var(--transition);
}

.indicator.active {
  background: white;
}

/* ==============================================
   SECTIONS
   ============================================== */

.section-title {
  text-align: center;
  margin-bottom: var(--space-4);
  color: var(--text-primary);
  position: relative;
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: -8px;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 3px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border-radius: 2px;
}

.categories-section,
.featured-products,
.stats-section {
  padding: var(--space-6) 0;
}

.categories-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-3);
}

.category-card {
  display: block;
  padding: var(--space-4);
  background: var(--bg-primary);
  border-radius: 12px;
  box-shadow: var(--shadow);
  text-decoration: none;
  color: var(--text-primary);
  transition: var(--transition);
  text-align: center;
}

.category-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.category-icon {
  font-size: 3rem;
  color: var(--primary);
  margin-bottom: var(--space-2);
}

.category-card h3 {
  margin-bottom: var(--space-1);
}

.category-card p {
  color: var(--text-secondary);
  font-size: 0.875rem;
}

/* ==============================================
   PRODUCTS GRID
   ============================================== */

.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--space-3);
}

.product-card {
  background: var(--bg-primary);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: var(--transition);
  position: relative;
}

.product-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.product-image {
  position: relative;
  height: 200px;
  overflow: hidden;
}

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

.product-card:hover .product-image img {
  transform: scale(1.05);
}

.discount-badge {
  position: absolute;
  top: var(--space-1);
  left: var(--space-1);
  background: var(--error);
  color: white;
  padding: 4px 8px;
  border-radius: 6px;
  font-size: 0.75rem;
  font-weight: 600;
}

.wishlist-btn {
  position: absolute;
  top: var(--space-1);
  right: var(--space-1);
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.9);
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

.wishlist-btn:hover {
  background: var(--error);
  color: white;
}

.product-info {
  padding: var(--space-3);
}

.category {
  font-size: 0.75rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  font-weight: 600;
  margin-bottom: var(--space-1);
}

.product-info h3 {
  font-size: 1.125rem;
  margin-bottom: var(--space-1);
  line-height: 1.3;
}

.rating {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-bottom: var(--space-2);
}

.rating .fas.fa-star {
  color: var(--gray-300);
  font-size: 0.875rem;
}

.rating .fas.fa-star.active {
  color: var(--accent);
}

.rating span {
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-left: 4px;
}

.price {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  margin-bottom: var(--space-3);
}

.original-price {
  color: var(--text-secondary);
  text-decoration: line-through;
  font-size: 0.875rem;
}

.current-price {
  color: var(--primary);
  font-size: 1.25rem;
  font-weight: 600;
}

.product-actions {
  display: flex;
  gap: var(--space-1);
}

.product-actions .btn {
  flex: 1;
  padding: var(--space-1) var(--space-2);
  font-size: 0.875rem;
}

/* ==============================================
   STATS SECTION
   ============================================== */

.stats-section {
  background: var(--bg-secondary);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-3);
}

.stat-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-4);
  background: var(--bg-primary);
  border-radius: 12px;
  box-shadow: var(--shadow);
}

.stat-icon {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
}

.stat-content h3 {
  font-size: 2rem;
  margin-bottom: 0;
  color: var(--primary);
}

.stat-content p {
  color: var(--text-secondary);
  margin: 0;
  font-size: 0.875rem;
}

/* ==============================================
   FORMS
   ============================================== */

.auth-container {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-3);
  background: var(--bg-secondary);
}

.auth-card {
  background: var(--bg-primary);
  border-radius: 12px;
  box-shadow: var(--shadow-lg);
  padding: var(--space-6);
  width: 100%;
  max-width: 450px;
}

.auth-header {
  text-align: center;
  margin-bottom: var(--space-4);
}

.auth-header h2 {
  color: var(--primary);
  margin-bottom: var(--space-1);
}

.auth-header p {
  color: var(--text-secondary);
  margin: 0;
}

.form-group {
  margin-bottom: var(--space-3);
}

.form-group label {
  display: block;
  margin-bottom: var(--space-1);
  font-weight: 500;
  color: var(--text-primary);
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: var(--space-2);
  border: 2px solid var(--border-color);
  border-radius: 8px;
  font-size: 1rem;
  transition: var(--transition);
  background: var(--bg-primary);
  color: var(--text-primary);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.form-group small {
  display: block;
  margin-top: 4px;
  color: var(--text-secondary);
  font-size: 0.875rem;
}

.form-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: var(--space-2);
}

.form-options {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-3);
}

.checkbox-container {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  cursor: pointer;
}

.forgot-link {
  color: var(--primary);
  text-decoration: none;
  font-size: 0.875rem;
}

.forgot-link:hover {
  text-decoration: underline;
}

/* ==============================================
   ALERTS
   ============================================== */

.alert {
  padding: var(--space-3);
  border-radius: 8px;
  margin-bottom: var(--space-3);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.alert-success {
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid var(--success);
  color: var(--success);
}

.alert-error {
  background: rgba(239, 68, 68, 0.1);
  border: 1px solid var(--error);
  color: var(--error);
}

.alert-warning {
  background: rgba(245, 158, 11, 0.1);
  border: 1px solid var(--warning);
  color: var(--warning);
}

/* ==============================================
   CART & CHECKOUT
   ============================================== */

.cart-container {
  display: grid;
  grid-template-columns: 1fr 350px;
  gap: var(--space-4);
  margin-top: var(--space-3);
}

.cart-items h3 {
  margin-bottom: var(--space-3);
  padding-bottom: var(--space-2);
  border-bottom: 2px solid var(--border-color);
}

.cart-item {
  display: flex;
  gap: var(--space-3);
  padding: var(--space-3);
  background: var(--bg-primary);
  border-radius: 12px;
  box-shadow: var(--shadow);
  margin-bottom: var(--space-3);
}

.item-image {
  width: 100px;
  height: 100px;
  border-radius: 8px;
  overflow: hidden;
}

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

.item-details {
  flex: 1;
}

.item-details h4 {
  margin-bottom: var(--space-1);
}

.item-price {
  margin-bottom: var(--space-2);
}

.item-controls {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.quantity-control {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 4px;
}

.quantity-control button {
  width: 30px;
  height: 30px;
  border: none;
  background: var(--gray-100);
  border-radius: 4px;
  cursor: pointer;
  transition: var(--transition);
}

.quantity-control button:hover {
  background: var(--primary);
  color: white;
}

.quantity {
  padding: 0 var(--space-2);
  font-weight: 600;
  min-width: 30px;
  text-align: center;
}

.remove-btn {
  background: none;
  border: none;
  color: var(--error);
  cursor: pointer;
  padding: var(--space-1);
  border-radius: 4px;
  transition: var(--transition);
}

.remove-btn:hover {
  background: rgba(239, 68, 68, 0.1);
}

.summary-card {
  background: var(--bg-primary);
  border-radius: 12px;
  padding: var(--space-4);
  box-shadow: var(--shadow);
  position: sticky;
  top: 100px;
}

.summary-row {
  display: flex;
  justify-content: space-between;
  padding: var(--space-2) 0;
  border-bottom: 1px solid var(--border-color);
}

.summary-row.total {
  font-weight: 600;
  font-size: 1.125rem;
  border-bottom: none;
  padding-top: var(--space-3);
  border-top: 2px solid var(--border-color);
}

.points-info {
  background: linear-gradient(135deg, var(--accent), var(--accent-light));
  color: white;
  padding: var(--space-3);
  border-radius: 12px;
  margin-top: var(--space-3);
}

/* ==============================================
   PAYMENT STYLES
   ============================================== */

.payment-container {
  display: grid;
  grid-template-columns: 1fr 350px;
  gap: var(--space-4);
  margin-top: var(--space-3);
}

.payment-card {
  background: var(--bg-primary);
  border-radius: 12px;
  padding: var(--space-4);
  box-shadow: var(--shadow);
}

.amount-info {
  margin-bottom: var(--space-4);
}

.amount-row {
  display: flex;
  justify-content: space-between;
  padding: var(--space-1) 0;
}

.amount-row.total {
  font-weight: 600;
  font-size: 1.25rem;
  padding-top: var(--space-2);
  border-top: 2px solid var(--border-color);
}

.amount-row.discount {
  color: var(--success);
}

.payment-option {
  margin-bottom: var(--space-4);
  border: 2px solid var(--border-color);
  border-radius: 12px;
  overflow: hidden;
}

.payment-header {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3);
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
}

.recommended {
  background: var(--success);
  color: white;
  padding: 2px 8px;
  border-radius: 12px;
  font-size: 0.75rem;
  font-weight: 600;
  margin-left: auto;
}

.upi-section,
.cod-section {
  padding: var(--space-3);
}

.upi-id-display {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2);
  background: var(--bg-secondary);
  border-radius: 8px;
  margin: var(--space-2) 0;
}

.copy-btn {
  background: var(--primary);
  color: white;
  border: none;
  padding: var(--space-1);
  border-radius: 4px;
  cursor: pointer;
}

.payment-buttons {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-2);
  margin: var(--space-3) 0;
}

.upi-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-1);
  padding: var(--space-2);
  border: 2px solid var(--border-color);
  border-radius: 8px;
  background: var(--bg-primary);
  cursor: pointer;
  transition: var(--transition);
  font-weight: 500;
}

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

.payment-instructions {
  background: var(--bg-secondary);
  padding: var(--space-3);
  border-radius: 8px;
  margin: var(--space-3) 0;
}

.payment-instructions ol {
  margin: var(--space-2) 0 0 var(--space-3);
}

.payment-instructions li {
  margin-bottom: var(--space-1);
}

/* ==============================================
   UTILITIES
   ============================================== */

.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mt-1 { margin-top: var(--space-1); }
.mt-2 { margin-top: var(--space-2); }
.mt-3 { margin-top: var(--space-3); }
.mt-4 { margin-top: var(--space-4); }

.mb-1 { margin-bottom: var(--space-1); }
.mb-2 { margin-bottom: var(--space-2); }
.mb-3 { margin-bottom: var(--space-3); }
.mb-4 { margin-bottom: var(--space-4); }

.hidden { display: none; }
.block { display: block; }
.flex { display: flex; }
.grid { display: grid; }

/* ==============================================
   WHATSAPP HELP BUTTON
   ============================================== */

.whatsapp-help {
  position: fixed;
  bottom: var(--space-3);
  right: var(--space-3);
  z-index: 1000;
}

.whatsapp-btn {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  background: #25D366;
  color: white;
  padding: var(--space-2) var(--space-3);
  border-radius: 50px;
  text-decoration: none;
  box-shadow: var(--shadow-lg);
  transition: var(--transition);
  animation: pulse 2s infinite;
}

.whatsapp-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
}

@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(37, 211, 102, 0.4); }
  70% { box-shadow: 0 0 0 10px rgba(37, 211, 102, 0); }
  100% { box-shadow: 0 0 0 0 rgba(37, 211, 102, 0); }
}

/* ==============================================
   FOOTER
   ============================================== */

.main-footer {
  background: var(--gray-900);
  color: var(--gray-300);
  padding: var(--space-6) 0 var(--space-3);
  margin-top: var(--space-6);
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-4);
  margin-bottom: var(--space-4);
}

.footer-section h4 {
  color: white;
  margin-bottom: var(--space-3);
}

.footer-section ul {
  list-style: none;
}

.footer-section ul li {
  margin-bottom: var(--space-1);
}

.footer-section a {
  color: var(--gray-300);
  text-decoration: none;
  transition: var(--transition);
}

.footer-section a:hover {
  color: var(--primary-light);
}

.social-links {
  display: flex;
  gap: var(--space-2);
  margin-top: var(--space-2);
}

.social-links a {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--gray-800);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

.social-links a:hover {
  background: var(--primary);
  transform: translateY(-2px);
}

.badge-info {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.badge-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-1);
  background: var(--gray-800);
  border-radius: 8px;
}

.footer-bottom {
  border-top: 1px solid var(--gray-800);
  padding-top: var(--space-3);
  text-align: center;
}

.footer-bottom p {
  margin: 0;
  color: var(--gray-400);
}

/* ==============================================
   ANIMATIONS
   ============================================== */

@keyframes slideDown {
  from { transform: translateY(-100%); }
  to { transform: translateY(0); }
}

@keyframes slideInLeft {
  from { 
    transform: translateX(-100%);
    opacity: 0;
  }
  to { 
    transform: translateX(0);
    opacity: 1;
  }
}

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

@keyframes slideUp {
  from {
    transform: translateY(30px);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

/* ==============================================
   LOADING STATES
   ============================================== */

.loading {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 3px solid var(--gray-200);
  border-radius: 50%;
  border-top-color: var(--primary);
  animation: spin 1s ease-in-out infinite;
}

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

/* ==============================================
   EMPTY STATES
   ============================================== */

.empty-state {
  text-align: center;
  padding: var(--space-6);
  background: var(--bg-primary);
  border-radius: 12px;
  box-shadow: var(--shadow);
}

.empty-icon {
  font-size: 4rem;
  color: var(--gray-400);
  margin-bottom: var(--space-3);
}

.empty-state h3 {
  color: var(--text-primary);
  margin-bottom: var(--space-2);
}

.empty-state p {
  color: var(--text-secondary);
  margin-bottom: var(--space-3);
}