/* ============ RESET & BASE STYLES ============ */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  /* Light Theme Colors */
  --primary-color: #e84c3d;
  --primary-hover: #d63b2b;
  --secondary-color: #f5a623;
  --secondary-hover: #e0931a;
  --success-color: #27ae60;
  --warning-color: #f39c12;
  --error-color: #e74c3c;
  --info-color: #3498db;
  
  /* Background Colors */
  --bg-primary: #ffffff;
  --bg-secondary: #f8f9fa;
  --bg-tertiary: #e9ecef;
  --bg-overlay: rgba(0, 0, 0, 0.5);
  
  /* Text Colors */
  --text-primary: #2c3e50;
  --text-secondary: #6c757d;
  --text-muted: #adb5bd;
  --text-inverse: #ffffff;
  
  /* Border & Shadow */
  --border-color: #dee2e6;
  --border-radius: 8px;
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.15);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.2);
  
  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-xxl: 3rem;
  
  /* Typography */
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 2rem;
  
  /* Transitions */
  --transition-fast: 0.15s ease;
  --transition-base: 0.3s ease;
  --transition-slow: 0.5s ease;
}

/* Dark Theme */
[data-theme="dark"] {
  --bg-primary: #1a1a1a;
  --bg-secondary: #2d2d2d;
  --bg-tertiary: #404040;
  --bg-overlay: rgba(0, 0, 0, 0.8);
  
  --text-primary: #ffffff;
  --text-secondary: #b3b3b3;
  --text-muted: #808080;
  --text-inverse: #1a1a1a;
  
  --border-color: #404040;
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.5);
}

html {
  scroll-behavior: smooth;
}

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

/* ============ NAVIGATION ============ */
nav {
  background-color: var(--bg-primary);
  box-shadow: var(--shadow-sm);
  padding: var(--spacing-md) 0;
  position: sticky;
  top: 0;
  z-index: 100;
  transition: all var(--transition-base);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  text-decoration: none;
  color: var(--primary-color);
  font-weight: 700;
  font-size: var(--font-size-xl);
  transition: transform var(--transition-fast);
}

.logo:hover {
  transform: scale(1.05);
}

.logo img {
  height: 2.5rem;
  width: auto;
  border-radius: var(--border-radius);
}

.nav-controls {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.nav-links {
  display: flex;
  gap: var(--spacing-lg);
  list-style: none;
  margin: 0;
}

.nav-links a {
  text-decoration: none;
  color: var(--text-primary);
  font-weight: 500;
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--border-radius);
  transition: all var(--transition-fast);
  position: relative;
}

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

.nav-links a.active::after {
  content: '';
  position: absolute;
  bottom: -8px;
  left: 50%;
  transform: translateX(-50%);
  width: 20px;
  height: 3px;
  background-color: var(--primary-color);
  border-radius: 2px;
}

.theme-toggle {
  background: none;
  border: 2px solid var(--border-color);
  border-radius: 50%;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-fast);
  font-size: var(--font-size-lg);
}

.theme-toggle:hover {
  border-color: var(--primary-color);
  transform: rotate(180deg);
}

.mobile-menu-toggle {
  display: none;
  flex-direction: column;
  gap: 4px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--spacing-sm);
  z-index: 101;
}

.mobile-menu-toggle span {
  width: 25px;
  height: 3px;
  background-color: var(--text-primary);
  border-radius: 2px;
  transition: all var(--transition-base);
  display: block;
}

/* Mobile Menu Open State */
.mobile-menu-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translateY(12px);
}

.mobile-menu-toggle.active span:nth-child(2) {
  opacity: 0;
  width: 0;
}

.mobile-menu-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translateY(-12px);
}

.nav-links.mobile-open {
  display: flex !important;
  flex-direction: column;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background-color: var(--bg-primary);
  border-bottom: 2px solid var(--primary-color);
  padding: var(--spacing-md) 0;
  gap: 0;
  box-shadow: var(--shadow-md);
  animation: slideDown 0.3s ease;
  z-index: 100;
}

.nav-links.mobile-open li {
  list-style: none;
}

.nav-links.mobile-open li a {
  display: block;
  padding: var(--spacing-md) var(--spacing-lg) !important;
  border-bottom: 1px solid var(--border-color);
  background-color: transparent;
  text-decoration: none;
}

.admin-info {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.admin-badge {
  background-color: var(--primary-color);
  color: var(--text-inverse);
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: 20px;
  font-size: var(--font-size-sm);
  font-weight: 600;
}

.logout-btn {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  background-color: var(--error-color);
  color: var(--text-inverse);
  border: none;
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--border-radius);
  cursor: pointer;
  font-weight: 500;
  transition: all var(--transition-fast);
}

.logout-btn:hover {
  background-color: #c0392b;
  transform: translateY(-2px);
}

/* ============ HERO SECTION ============ */
.hero {
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  color: var(--text-inverse);
  padding: var(--spacing-xxl) 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="50" cy="50" r="1" fill="white" opacity="0.1"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
  opacity: 0.3;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 800px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.hero h1 {
  font-size: var(--font-size-3xl);
  font-weight: 700;
  margin-bottom: var(--spacing-md);
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.hero p {
  font-size: var(--font-size-lg);
  margin-bottom: var(--spacing-xl);
  opacity: 0.9;
}

.hero-stats {
  display: flex;
  justify-content: center;
  gap: var(--spacing-xl);
  margin-top: var(--spacing-xl);
}

.stat {
  text-align: center;
}

.stat-number {
  display: block;
  font-size: var(--font-size-2xl);
  font-weight: 700;
  margin-bottom: var(--spacing-xs);
}

.stat-label {
  font-size: var(--font-size-sm);
  opacity: 0.8;
  text-transform: uppercase;
  letter-spacing: 1px;
}

/* ============ CONTAINER ============ */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--spacing-xl) var(--spacing-md);
}

/* ============ CONTROLS BAR ============ */
.controls-bar {
  background-color: var(--bg-primary);
  padding: var(--spacing-lg);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-sm);
  margin-bottom: var(--spacing-xl);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-lg);
  align-items: center;
}

.filter-section {
  display: flex;
  gap: var(--spacing-md);
}

.search-section {
  justify-self: end;
}

.search-container {
  position: relative;
  display: flex;
  align-items: center;
}

.search-container input {
  width: 300px;
  padding: var(--spacing-sm) var(--spacing-md);
  padding-right: 50px;
  border: 2px solid var(--border-color);
  border-radius: 25px;
  font-size: var(--font-size-base);
  background-color: var(--bg-secondary);
  color: var(--text-primary);
  transition: all var(--transition-fast);
}

.search-container input:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(232, 76, 61, 0.1);
}

.search-btn {
  position: absolute;
  right: 5px;
  background: none;
  border: none;
  padding: var(--spacing-sm);
  cursor: pointer;
  color: var(--text-secondary);
  border-radius: 50%;
  transition: all var(--transition-fast);
}

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

select {
  padding: var(--spacing-sm) var(--spacing-md);
  border: 2px solid var(--border-color);
  border-radius: var(--border-radius);
  font-size: var(--font-size-base);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  cursor: pointer;
  transition: all var(--transition-fast);
  min-width: 150px;
}

select:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(232, 76, 61, 0.1);
}

/* ============ RESULTS INFO ============ */
.results-info {
  margin-bottom: var(--spacing-lg);
  padding: var(--spacing-md);
  background-color: var(--bg-primary);
  border-radius: var(--border-radius);
  border-left: 4px solid var(--primary-color);
  font-weight: 500;
}

/* ============ PRODUCTS GRID ============ */
.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-xl);
}

.product-card {
  background-color: var(--bg-primary);
  border-radius: var(--border-radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-base);
  cursor: pointer;
  position: relative;
}

.product-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
}

.product-image-container {
  position: relative;
  overflow: hidden;
  border-radius: var(--border-radius) var(--border-radius) 0 0;
  background-color: var(--bg-tertiary);
}

.product-image {
  width: 100%;
  height: 220px;
  object-fit: contain;
  background-color: var(--bg-tertiary);
  transition: transform var(--transition-base);
  display: block;
}

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

.product-details {
  padding: var(--spacing-lg);
}

.product-category {
  background-color: var(--primary-color);
  color: var(--text-inverse);
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: 15px;
  font-size: var(--font-size-xs);
  font-weight: 600;
  text-transform: uppercase;
  display: inline-block;
  margin-bottom: var(--spacing-sm);
  letter-spacing: 0.5px;
}

.product-title {
  margin-bottom: var(--spacing-sm);
  color: var(--text-primary);
  font-size: var(--font-size-lg);
  font-weight: 600;
  line-height: 1.4;
  min-height: 2.8rem;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.product-details h3 {
  margin-bottom: var(--spacing-sm);
  color: var(--text-primary);
  font-size: var(--font-size-lg);
  font-weight: 600;
  line-height: 1.4;
  min-height: 2.8rem;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.product-price {
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--primary-color);
  margin-bottom: var(--spacing-sm);
}

.sale-price {
  color: var(--primary-color);
  font-weight: 700;
}

.regular-price {
  text-decoration: line-through;
  color: var(--text-muted);
  font-size: 0.9em;
  margin-left: var(--spacing-xs);
}

.discount-badge {
  background-color: var(--error-color);
  color: white;
  padding: 2px 6px;
  border-radius: 12px;
  font-size: 0.75em;
  font-weight: 600;
  margin-left: var(--spacing-xs);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.product-description {
  color: var(--text-secondary);
  font-size: var(--font-size-sm);
  margin-bottom: var(--spacing-lg);
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  min-height: 4rem;
}

.product-actions-user {
  display: flex;
  gap: var(--spacing-sm);
}

.btn-buy {
  flex: 1;
  background-color: var(--primary-color);
  color: var(--text-inverse);
  padding: var(--spacing-sm) var(--spacing-md);
  border: none;
  border-radius: var(--border-radius);
  cursor: pointer;
  font-weight: 600;
  font-size: var(--font-size-sm);
  transition: all var(--transition-fast);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-xs);
}

.btn-buy:hover {
  background-color: var(--primary-hover);
  transform: translateY(-2px);
}

.btn-share {
  background-color: var(--secondary-color);
  color: var(--text-inverse);
  padding: var(--spacing-sm);
  border: none;
  border-radius: var(--border-radius);
  cursor: pointer;
  font-weight: 600;
  transition: all var(--transition-fast);
  width: 45px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.btn-share:hover {
  background-color: var(--secondary-hover);
  transform: translateY(-2px);
}

.btn-checkout {
  background-color: #17a2b8;
  color: var(--text-inverse);
  padding: var(--spacing-sm);
  border: none;
  border-radius: var(--border-radius);
  cursor: pointer;
  font-weight: 600;
  transition: all var(--transition-fast);
  width: 45px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.btn-checkout:hover {
  background-color: #138496;
  transform: translateY(-2px);
}

.btn-whatsapp {
  background-color: #25d366;
  color: var(--text-inverse);
  padding: var(--spacing-sm);
  border: none;
  border-radius: var(--border-radius);
  cursor: pointer;
  font-weight: 600;
  transition: all var(--transition-fast);
  width: 45px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.btn-whatsapp:hover {
  background-color: #128c7e;
  transform: translateY(-2px);
}

.btn-pinterest {
  background-color: #e60023;
  color: var(--text-inverse);
  padding: var(--spacing-sm);
  border: none;
  border-radius: var(--border-radius);
  cursor: pointer;
  font-weight: 600;
  transition: all var(--transition-fast);
  width: 45px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.btn-pinterest:hover {
  background-color: #c9141e;
  transform: translateY(-2px);
}

/* ============ LOADING SPINNER ============ */
.loading-spinner {
  grid-column: 1 / -1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-xxl);
  color: var(--text-secondary);
}

.spinner {
  width: 50px;
  height: 50px;
  border: 4px solid var(--border-color);
  border-top: 4px solid var(--primary-color);
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin-bottom: var(--spacing-md);
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* ============ EMPTY STATE ============ */
.empty-state {
  grid-column: 1 / -1;
  text-align: center;
  padding: var(--spacing-xxl);
  color: var(--text-secondary);
}

.empty-state h2 {
  margin-bottom: var(--spacing-md);
  color: var(--text-primary);
}

/* ============ LOAD MORE ============ */
.load-more-container {
  text-align: center;
  margin-top: var(--spacing-xl);
}

.btn-load-more {
  background-color: var(--primary-color);
  color: var(--text-inverse);
  padding: var(--spacing-md) var(--spacing-xl);
  border: none;
  border-radius: var(--border-radius);
  cursor: pointer;
  font-weight: 600;
  font-size: var(--font-size-base);
  transition: all var(--transition-fast);
}

.btn-load-more:hover {
  background-color: var(--primary-hover);
  transform: translateY(-2px);
}

/* ============ BACK TO TOP ============ */
.back-to-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  background-color: var(--primary-color);
  color: var(--text-inverse);
  border: none;
  border-radius: 50%;
  width: 50px;
  height: 50px;
  cursor: pointer;
  box-shadow: var(--shadow-md);
  transition: all var(--transition-fast);
  opacity: 0;
  visibility: hidden;
  z-index: 1000;
}

.back-to-top.show {
  opacity: 1;
  visibility: visible;
}

.back-to-top:hover {
  background-color: var(--primary-hover);
  transform: translateY(-3px);
}

/* ============ FOOTER ============ */
.footer {
  background-color: var(--bg-primary);
  margin-top: var(--spacing-xxl);
  border-top: 1px solid var(--border-color);
}

.footer-content {
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--spacing-xxl) var(--spacing-md) var(--spacing-xl);
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-xl);
}

.footer-section h3,
.footer-section h4 {
  margin-bottom: var(--spacing-md);
  color: var(--primary-color);
}

.footer-section p {
  color: var(--text-secondary);
  margin-bottom: var(--spacing-sm);
  line-height: 1.6;
}

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

.footer-section ul li {
  margin-bottom: var(--spacing-xs);
}

.footer-section ul li a {
  color: var(--text-secondary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

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

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

.social-links a {
  display: inline-block;
  font-size: var(--font-size-lg);
  text-decoration: none;
  transition: transform var(--transition-fast);
}

.contact-icons {
  display: flex;
  gap: var(--spacing-md);
  margin-top: var(--spacing-sm);
}

.contact-icons a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background-color: var(--bg-secondary);
  color: var(--text-secondary);
  transition: all var(--transition-fast);
  text-decoration: none;
}

.contact-icons a:hover {
  background-color: var(--primary-color);
  color: var(--text-inverse);
  transform: translateY(-2px);
}

.footer-bottom {
  background-color: var(--bg-secondary);
  padding: var(--spacing-lg);
  text-align: center;
  color: var(--text-secondary);
  border-top: 1px solid var(--border-color);
}

.footer-bottom p {
  margin-bottom: var(--spacing-xs);
}

/* ============ LOGIN PAGE ============ */
.login-container {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  padding: var(--spacing-md);
}

.login-box {
  background-color: var(--bg-primary);
  padding: var(--spacing-xxl);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-lg);
  width: 100%;
  max-width: 450px;
  position: relative;
  overflow: hidden;
}

.login-box::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
}

.login-header {
  text-align: center;
  margin-bottom: var(--spacing-xl);
}

.login-logo {
  width: 60px;
  height: 60px;
  margin-bottom: var(--spacing-md);
  border-radius: var(--border-radius);
}

.login-header h1 {
  margin-bottom: var(--spacing-sm);
  color: var(--primary-color);
  font-size: var(--font-size-2xl);
}

.login-header p {
  color: var(--text-secondary);
  font-size: var(--font-size-sm);
}

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

.form-group label {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  margin-bottom: var(--spacing-sm);
  font-weight: 600;
  color: var(--text-primary);
  font-size: var(--font-size-sm);
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: var(--spacing-md);
  border: 2px solid var(--border-color);
  border-radius: var(--border-radius);
  font-size: var(--font-size-base);
  font-family: inherit;
  background-color: var(--bg-secondary);
  color: var(--text-primary);
  transition: all var(--transition-fast);
}

.price-input-group {
  display: flex;
  gap: 0;
  border: 2px solid var(--border-color);
  border-radius: var(--border-radius);
  overflow: hidden;
  transition: border-color var(--transition-fast);
}

.price-input-group:focus-within {
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(232, 76, 61, 0.1);
}

.price-input-group input {
  flex: 1;
  border: none;
  border-radius: 0;
  background-color: var(--bg-secondary);
  padding: var(--spacing-md);
}

.price-input-group input:focus {
  outline: none;
  box-shadow: none;
  border: none;
}

.price-input-group select {
  border: none;
  border-left: 1px solid var(--border-color);
  border-radius: 0;
  background-color: var(--bg-primary);
  padding: var(--spacing-md);
  min-width: 100px;
  cursor: pointer;
}

.price-input-group select:focus {
  outline: none;
  box-shadow: none;
  border-left: 1px solid var(--border-color);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(232, 76, 61, 0.1);
}

.password-input {
  position: relative;
}

.password-toggle {
  position: absolute;
  right: var(--spacing-md);
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text-secondary);
  transition: color var(--transition-fast);
}

.password-toggle:hover {
  color: var(--primary-color);
}

.btn {
  width: 100%;
  padding: var(--spacing-md);
  background-color: var(--primary-color);
  color: var(--text-inverse);
  border: none;
  border-radius: var(--border-radius);
  font-size: var(--font-size-base);
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
  position: relative;
  overflow: hidden;
}

.btn:hover {
  background-color: var(--primary-hover);
  transform: translateY(-2px);
}

.btn:active {
  transform: translateY(0);
}

.btn-login {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
}

.btn-spinner {
  width: 20px;
  height: 20px;
  border: 2px solid transparent;
  border-top: 2px solid currentColor;
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

.demo-credentials {
  margin-top: var(--spacing-xl);
  padding: var(--spacing-lg);
  background-color: var(--bg-secondary);
  border-radius: var(--border-radius);
  border: 1px solid var(--border-color);
}

.demo-header {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  margin-bottom: var(--spacing-md);
  font-weight: 600;
  color: var(--text-primary);
  font-size: var(--font-size-sm);
}

.demo-info p {
  margin-bottom: var(--spacing-xs);
  font-size: var(--font-size-sm);
}

.demo-info code {
  background-color: var(--bg-primary);
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: 4px;
  font-family: 'Monaco', 'Menlo', monospace;
  cursor: pointer;
  transition: background-color var(--transition-fast);
}

.demo-info code:hover {
  background-color: var(--primary-color);
  color: var(--text-inverse);
}

.demo-info small {
  color: var(--text-muted);
  font-size: var(--font-size-xs);
}

/* ============ ADMIN PANEL ============ */

/* Settings Panel */
.settings-panel {
  background-color: var(--bg-primary);
  padding: var(--spacing-lg);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-sm);
  margin-bottom: var(--spacing-xl);
}

.settings-panel h2 {
  color: var(--primary-color);
  margin-bottom: var(--spacing-lg);
  font-size: var(--font-size-xl);
}

.setting-item {
  margin-bottom: var(--spacing-lg);
}

.setting-item label {
  display: block;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--spacing-sm);
  font-size: var(--font-size-sm);
}

.domain-input-group {
  display: flex;
  gap: var(--spacing-md);
  align-items: center;
}

.domain-input-group input {
  flex: 1;
  padding: var(--spacing-md);
  border: 2px solid var(--border-color);
  border-radius: var(--border-radius);
  font-size: var(--font-size-sm);
  font-family: inherit;
  background-color: var(--bg-secondary);
  color: var(--text-primary);
  transition: all var(--transition-fast);
}

.domain-input-group input:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(232, 76, 61, 0.1);
}

.domain-input-group .btn {
  padding: var(--spacing-md) var(--spacing-lg);
  min-width: 150px;
  white-space: nowrap;
}

.setting-item small {
  display: block;
  color: var(--text-secondary);
  font-size: var(--font-size-xs);
  margin-top: var(--spacing-sm);
}

.admin-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-xl);
}

.stat-card {
  background-color: var(--bg-primary);
  padding: var(--spacing-lg);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-sm);
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  transition: transform var(--transition-fast);
}

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

.stat-icon {
  font-size: var(--font-size-2xl);
  width: 60px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--bg-secondary);
  border-radius: var(--border-radius);
}

.stat-info h3 {
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--primary-color);
  margin-bottom: var(--spacing-xs);
}

.stat-info p {
  color: var(--text-secondary);
  font-size: var(--font-size-sm);
  margin: 0;
}

.admin-container {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: var(--spacing-xl);
}

.admin-form {
  background-color: var(--bg-primary);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-sm);
  height: fit-content;
  position: sticky;
  top: 100px;
  overflow: hidden;
}

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

.form-header h2 {
  color: var(--primary-color);
  margin: 0;
}

.btn-minimize {
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--spacing-sm);
  border-radius: var(--border-radius);
  color: var(--text-secondary);
  transition: all var(--transition-fast);
}

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

.product-form {
  padding: var(--spacing-lg);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
}

.form-row .form-group {
  margin-bottom: 0;
}

.form-row:has(.form-group:only-child) {
  grid-template-columns: 1fr;
}

.char-count {
  display: block;
  text-align: right;
  color: var(--text-muted);
  font-size: var(--font-size-xs);
  margin-top: var(--spacing-xs);
}

.image-upload-container {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.upload-area {
  border: 2px dashed var(--border-color);
  border-radius: var(--border-radius);
  padding: var(--spacing-xl);
  text-align: center;
  cursor: pointer;
  transition: all var(--transition-fast);
  background-color: var(--bg-secondary);
}

.upload-area:hover {
  border-color: var(--primary-color);
  background-color: var(--bg-tertiary);
}

.upload-content svg {
  color: var(--text-muted);
  margin-bottom: var(--spacing-md);
}

.upload-content p {
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--spacing-xs);
}

.upload-content small {
  color: var(--text-muted);
}

.image-preview-multiple {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-md);
  padding: var(--spacing-md);
  background-color: var(--bg-secondary);
  border-radius: var(--border-radius);
  border: 1px solid var(--border-color);
  margin-top: var(--spacing-md);
}

.image-preview-item {
  position: relative;
  border-radius: var(--border-radius);
  overflow: hidden;
  background-color: var(--bg-primary);
  border: 1px solid var(--border-color);
}

.image-preview-item img {
  width: 100%;
  height: auto;
  max-height: 200px;
  object-fit: contain;
  border-radius: var(--border-radius);
  display: block;
}

.image-preview-item .remove-btn {
  position: absolute;
  top: 5px;
  right: 5px;
  background-color: var(--error-color);
  color: white;
  border: none;
  border-radius: 50%;
  width: 25px;
  height: 25px;
  cursor: pointer;
  font-size: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.image-preview-item .remove-btn:hover {
  background-color: #c0392b;
}

.preview-actions {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.btn-remove {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  background-color: var(--error-color);
  color: var(--text-inverse);
  border: none;
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--border-radius);
  cursor: pointer;
  font-size: var(--font-size-sm);
  transition: all var(--transition-fast);
}

.btn-remove:hover {
  background-color: #c0392b;
}

.btn-test-link {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  background-color: var(--info-color);
  color: var(--text-inverse);
  border: none;
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--border-radius);
  cursor: pointer;
  font-size: var(--font-size-sm);
  transition: all var(--transition-fast);
  margin-top: var(--spacing-sm);
}

.btn-test-link:hover {
  background-color: #2980b9;
}

.form-actions {
  display: flex;
  gap: var(--spacing-md);
  margin-top: var(--spacing-xl);
}

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

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

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

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

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

/* Products List */
.products-list {
  background-color: var(--bg-primary);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}

.list-header {
  padding: var(--spacing-lg);
  background-color: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
}

.list-header h2 {
  color: var(--primary-color);
  margin-bottom: var(--spacing-md);
}

.list-controls {
  display: flex;
  gap: var(--spacing-md);
  align-items: center;
  flex-wrap: wrap;
}

.search-products input {
  width: 250px;
  padding: var(--spacing-sm) var(--spacing-md);
  border: 2px solid var(--border-color);
  border-radius: var(--border-radius);
  font-size: var(--font-size-sm);
}

.products-admin-grid {
  padding: var(--spacing-lg);
  display: grid;
  gap: var(--spacing-md);
}

.product-item {
  display: grid;
  grid-template-columns: 80px 1fr auto;
  gap: var(--spacing-md);
  padding: var(--spacing-md);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  background-color: var(--bg-secondary);
  align-items: center;
  transition: all var(--transition-fast);
}

.product-item:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}

.product-thumbnail {
  width: 80px;
  height: 80px;
  object-fit: cover;
  border-radius: var(--border-radius);
  background-color: var(--bg-tertiary);
}

.product-info h3 {
  margin-bottom: var(--spacing-xs);
  color: var(--text-primary);
  font-size: var(--font-size-base);
}

.product-info p {
  color: var(--text-secondary);
  font-size: var(--font-size-sm);
  margin-bottom: var(--spacing-xs);
}

.product-actions {
  display: flex;
  gap: var(--spacing-sm);
  flex-wrap: wrap;
}

.btn-small {
  padding: var(--spacing-xs) var(--spacing-sm);
  font-size: var(--font-size-xs);
  border: none;
  border-radius: var(--border-radius);
  cursor: pointer;
  transition: all var(--transition-fast);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.btn-edit {
  background-color: var(--info-color);
  color: var(--text-inverse);
}

.btn-edit:hover {
  background-color: #2980b9;
}

.btn-delete {
  background-color: var(--error-color);
  color: var(--text-inverse);
}

.btn-delete:hover {
  background-color: #c0392b;
}

.btn-toggle {
  background-color: var(--success-color);
  color: var(--text-inverse);
}

.btn-toggle:hover {
  background-color: #229954;
}

.btn-toggle.disabled {
  background-color: var(--text-muted);
}

.no-products {
  text-align: center;
  padding: var(--spacing-xxl);
  color: var(--text-secondary);
}

/* ============ ALERT MESSAGES ============ */
.alert {
  margin-bottom: var(--spacing-lg);
  border-radius: var(--border-radius);
  display: none;
  animation: slideDown 0.3s ease;
}

.alert.show {
  display: block;
}

.alert-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-md);
}

.alert-success {
  background-color: #d4edda;
  color: #155724;
  border: 1px solid #c3e6cb;
}

.alert-error {
  background-color: #f8d7da;
  color: #721c24;
  border: 1px solid #f5c6cb;
}

.alert-close {
  background: none;
  border: none;
  font-size: var(--font-size-lg);
  cursor: pointer;
  color: inherit;
  opacity: 0.7;
  transition: opacity var(--transition-fast);
}

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

/* ============ ANIMATIONS ============ */
@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideUp {
  from {
    transform: translateY(100px);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

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

/* ============ RESPONSIVE DESIGN ============ */
@media (max-width: 1024px) {
  .admin-container {
    grid-template-columns: 1fr;
  }
  
  .admin-form {
    position: relative;
    top: 0;
  }
  
  .controls-bar {
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
  }
  
  .search-section {
    justify-self: start;
  }
  
  .search-container input {
    width: 100%;
  }
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
  }
  
  .mobile-menu-toggle {
    display: flex;
  }
  
  nav {
    padding: var(--spacing-sm) 0;
  }
  
  .nav-container {
    padding: 0 var(--spacing-sm);
  }
  
  .logo {
    gap: var(--spacing-xs);
    font-size: var(--font-size-lg);
  }
  
  .logo img {
    height: 2rem;
  }
  
  .hero h1 {
    font-size: var(--font-size-2xl);
  }
  
  .hero-stats {
    flex-direction: column;
    gap: var(--spacing-md);
  }
  
  .products-grid {
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: var(--spacing-md);
  }
  
  .filter-section {
    flex-direction: column;
    gap: var(--spacing-sm);
  }
  
  .filter-section select {
    width: 100%;
  }
  
  .list-controls {
    flex-direction: column;
    align-items: stretch;
  }
  
  .search-products input {
    width: 100%;
  }
  
  .product-item {
    grid-template-columns: 1fr;
    text-align: center;
    gap: var(--spacing-sm);
  }
  
  .product-actions {
    justify-content: center;
  }
  
  .form-row {
    grid-template-columns: 1fr;
  }
  
  .form-actions {
    flex-direction: column;
  }
  
  /* Improve hero section padding on mobile */
  .hero {
    padding: var(--spacing-xl) 0;
  }
  
  .hero-content {
    padding: 0 var(--spacing-md);
  }
  
  .hero p {
    font-size: var(--font-size-base);
    margin-bottom: var(--spacing-lg);
  }
  
  /* Better spacing for container */
  .container {
    padding: var(--spacing-md);
  }
  
  .controls-bar {
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
  }
}

@media (max-width: 480px) {
  /* Navigation improvements */
  .nav-container {
    flex-direction: row;
    justify-content: space-between;
    padding: 0 var(--spacing-sm);
  }
  
  .logo {
    font-size: var(--font-size-sm);
    gap: 4px;
  }
  
  .logo img {
    height: 1.5rem;
  }
  
  .logo span {
    display: inline;
    font-size: var(--font-size-xs);
  }
  
  /* Hero section mobile */
  .hero {
    padding: var(--spacing-lg) var(--spacing-sm);
  }
  
  .hero h1 {
    font-size: var(--font-size-2xl);
    margin-bottom: var(--spacing-sm);
  }
  
  .hero p {
    font-size: var(--font-size-sm);
    margin-bottom: var(--spacing-lg);
  }
  
  .hero-stats {
    flex-direction: row;
    gap: var(--spacing-md);
    justify-content: center;
  }
  
  .stat {
    padding: var(--spacing-md);
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius);
    min-width: 80px;
  }
  
  .stat-number {
    font-size: var(--font-size-xl);
    font-weight: 700;
  }
  
  .stat-label {
    font-size: var(--font-size-xs);
  }
  
  /* Products grid mobile */
  .products-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
  }
  
  .product-card {
    display: flex;
    flex-direction: row;
    gap: var(--spacing-md);
    min-height: auto;
  }
  
  .product-image {
    width: 100px;
    height: 100px;
    min-width: 100px;
    flex-shrink: 0;
    border-radius: var(--border-radius);
    object-fit: contain;
    background-color: var(--bg-tertiary);
  }
  
  .product-details {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    padding: var(--spacing-sm);
  }
  
  .product-category {
    font-size: var(--font-size-xs);
    padding: 2px var(--spacing-xs);
    width: fit-content;
  }
  
  .product-details h3 {
    font-size: var(--font-size-sm);
    line-height: 1.3;
    margin-bottom: var(--spacing-xs);
    min-height: auto;
  }
  
  .product-price {
    font-size: var(--font-size-base);
    margin-bottom: var(--spacing-xs);
    font-weight: 700;
  }
  
  .product-description {
    font-size: var(--font-size-xs);
    line-height: 1.3;
    margin-bottom: var(--spacing-sm);
    -webkit-line-clamp: 2;
    min-height: auto;
  }
  
  .product-actions-user {
    display: flex;
    gap: var(--spacing-xs);
    flex-wrap: wrap;
  }
  
  .btn-buy {
    flex: 1;
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: var(--font-size-xs);
    min-width: 60px;
  }
  
  .btn-share, .btn-pinterest, .btn-whatsapp, .btn-checkout {
    width: 36px;
    height: 36px;
    padding: 0;
    font-size: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
  }
  
  /* Container and controls mobile */
  .container {
    padding: var(--spacing-sm);
  }
  
  .controls-bar {
    grid-template-columns: 1fr;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm);
  }
  
  .filter-section {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
  }
  
  .filter-section select {
    width: 100%;
    padding: var(--spacing-sm);
    font-size: var(--font-size-sm);
  }
  
  .search-section {
    width: 100%;
  }
  
  .search-container {
    width: 100%;
  }
  
  .search-container input {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: var(--font-size-sm);
  }
  
  .search-btn {
    padding: var(--spacing-sm);
  }
  
  /* Results info mobile */
  .results-info {
    font-size: var(--font-size-sm);
    padding: var(--spacing-sm);
  }
  
  /* Footer mobile */
  .footer-content {
    padding: var(--spacing-lg) var(--spacing-sm) var(--spacing-md);
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
  }
  
  /* Back to top button mobile */
  .back-to-top {
    bottom: 20px;
    right: 20px;
    width: 45px;
    height: 45px;
  }
  
  /* Admin panel mobile */
  .admin-container {
    grid-template-columns: 1fr;
  }
  
  .admin-form {
    position: relative;
    top: 0;
  }
  
  .form-row {
    grid-template-columns: 1fr;
  }
  
  .form-actions {
    flex-direction: column;
    gap: var(--spacing-sm);
  }
  
  .btn {
    padding: var(--spacing-md);
    font-size: var(--font-size-sm);
  }
  
  .product-item {
    grid-template-columns: 80px 1fr auto;
    gap: var(--spacing-sm);
  }
  
  .product-thumbnail {
    width: 60px;
    height: 60px;
  }
  
  .product-info h3 {
    font-size: var(--font-size-xs);
  }
  
  .product-info p {
    font-size: var(--font-size-xs);
  }
  
  .product-actions {
    flex-direction: column;
    gap: var(--spacing-xs);
  }
  
  .btn-small {
    padding: var(--spacing-xs) var(--spacing-xs);
    font-size: var(--font-size-xs);
  }
}
    
/* ============ PRINT STYLES ============ */
@media print {
  .nav, .footer, .back-to-top, .controls-bar {
    display: none !important;
  }
  
  .product-card {
    break-inside: avoid;
    box-shadow: none;
    border: 1px solid #ccc;
  }
  
  .product-actions-user {
    display: none;
  }
}

/* ============ ACCESSIBILITY ============ */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* Focus styles for keyboard navigation */
button:focus,
input:focus,
select:focus,
textarea:focus,
a:focus {
  outline: 2px solid var(--primary-color);
  outline-offset: 2px;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
  :root {
    --border-color: #000000;
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.5);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.6);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.7);
  }
}

/* ============ MODAL STYLES ============ */
.modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: var(--bg-overlay);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 1000;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}

.modal.show {
  opacity: 1;
  visibility: visible;
}

.modal-content {
  background-color: var(--bg-primary);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-lg);
  max-width: 500px;
  width: 90%;
  max-height: 80vh;
  overflow-y: auto;
  transform: scale(0.9);
  transition: transform 0.3s ease;
}

.modal.show .modal-content {
  transform: scale(1);
}

.modal-header {
  padding: var(--spacing-lg);
  border-bottom: 1px solid var(--border-color);
}

.modal-header h3 {
  color: var(--text-primary);
  font-size: 1.25rem;
  font-weight: 600;
}

.modal-body {
  padding: var(--spacing-lg);
}

.modal-body p {
  color: var(--text-secondary);
  line-height: 1.5;
}

.modal-footer {
  padding: var(--spacing-lg);
  border-top: 1px solid var(--border-color);
  display: flex;
  justify-content: flex-end;
  gap: var(--spacing-md);
}

/* ============ TOAST NOTIFICATIONS ============ */
.toast {
  position: fixed;
  bottom: 30px;
  right: 30px;
  background-color: var(--success-color);
  color: white;
  padding: 1rem 1.5rem;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-lg);
  z-index: 1000;
  max-width: 350px;
  word-wrap: break-word;
  font-family: inherit;
  animation: slideUp 0.3s ease;
}

.toast-error {
  background-color: var(--error-color);
}

.toast-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-sm);
}

.toast-message {
  flex: 1;
  font-size: var(--font-size-sm);
  line-height: 1.4;
}

.toast-close {
  background: none;
  border: none;
  color: inherit;
  font-size: 1.5rem;
  cursor: pointer;
  opacity: 0.7;
  transition: opacity 0.2s ease;
  padding: 0;
  margin-left: var(--spacing-sm);
}

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

@keyframes slideUp {
  from {
    transform: translateY(100px);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

@keyframes slideDown {
  from {
    transform: translateY(0);
    opacity: 1;
  }
  to {
    transform: translateY(100px);
    opacity: 0;
  }
}