/* ===== CSS VARIABLES ===== */
:root {
  /* Colors */
  --primary-color: #6366f1;
  --primary-dark: #4f46e5;
  --secondary-color: #ec4899;
  --accent-color: #06b6d4;
  --success-color: #10b981;
  --warning-color: #f59e0b;
  --error-color: #ef4444;
  
  /* Dark Theme */
  --bg-primary: #0f0f23;
  --bg-secondary: #1a1a2e;
  --bg-tertiary: #16213e;
  --text-primary: #ffffff;
  --text-secondary: #a1a1aa;
  --text-muted: #71717a;
  --border-color: #27272a;
  --glass-bg: rgba(255, 255, 255, 0.05);
  --glass-border: rgba(255, 255, 255, 0.1);
  
  /* Light Theme */
  --light-bg-primary: #ffffff;
  --light-bg-secondary: #f8fafc;
  --light-bg-tertiary: #f1f5f9;
  --light-text-primary: #1e293b;
  --light-text-secondary: #475569;
  --light-text-muted: #64748b;
  --light-border-color: #e2e8f0;
  --light-glass-bg: rgba(255, 255, 255, 0.8);
  --light-glass-border: rgba(0, 0, 0, 0.1);
  
  /* Spacing */
  --container-max-width: 1400px;
  --section-padding: 5rem 0;
  --card-padding: 1.5rem;
  
  /* Animations */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;
  --bounce: cubic-bezier(0.68, -0.55, 0.265, 1.55);
  
  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
  --shadow-glow: 0 0 20px rgba(99, 102, 241, 0.3);
}

/* Light Theme Variables */
[data-theme="light"] {
  --bg-primary: var(--light-bg-primary);
  --bg-secondary: var(--light-bg-secondary);
  --bg-tertiary: var(--light-bg-tertiary);
  --text-primary: var(--light-text-primary);
  --text-secondary: var(--light-text-secondary);
  --text-muted: var(--light-text-muted);
  --border-color: var(--light-border-color);
  --glass-bg: var(--light-glass-bg);
  --glass-border: var(--light-glass-border);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  transition: background-color var(--transition-normal), color var(--transition-normal);
}

/* ===== LOADING SCREEN ===== */
.loading-screen {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10000;
  transition: opacity 0.5s ease, visibility 0.5s ease;
}

.loading-screen.hidden {
  opacity: 0;
  visibility: hidden;
}

.loading-animation {
  text-align: center;
  color: white;
}

.loading-circle {
  width: 60px;
  height: 60px;
  border: 3px solid rgba(255, 255, 255, 0.3);
  border-top: 3px solid white;
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin: 0 auto 1rem;
}

.loading-text {
  font-size: 1.2rem;
  font-weight: 500;
  animation: pulse 2s ease-in-out infinite;
}

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

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.7; }
}

/* ===== BACKGROUND EFFECTS ===== */
#backgroundCanvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -2;
  background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
}

.gradient-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle at 20% 80%, rgba(99, 102, 241, 0.1) 0%, transparent 50%),
              radial-gradient(circle at 80% 20%, rgba(236, 72, 153, 0.1) 0%, transparent 50%);
  z-index: -1;
  pointer-events: none;
}

/* ===== NAVIGATION ===== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--glass-border);
  z-index: 1000;
  transition: all var(--transition-normal);
}

.navbar.scrolled {
  background: var(--bg-secondary);
  box-shadow: var(--shadow-lg);
}

.nav-container {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 70px;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
  text-decoration: none;
}

.brand-icon {
  color: var(--primary-color);
  font-size: 1.8rem;
  animation: float 3s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-5px); }
}

.nav-menu {
  display: flex;
  gap: 2rem;
  list-style: none;
}

.nav-link {
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 500;
  padding: 0.5rem 1rem;
  border-radius: 0.5rem;
  transition: all var(--transition-normal);
  position: relative;
}

.nav-link:hover,
.nav-link.active {
  color: var(--primary-color);
  background: var(--glass-bg);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 50%;
  width: 0;
  height: 2px;
  background: var(--primary-color);
  transition: all var(--transition-normal);
  transform: translateX(-50%);
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 80%;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.theme-toggle,
.cart-btn,
.wishlist-btn {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  color: var(--text-primary);
  width: 45px;
  height: 45px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-normal);
  position: relative;
}

.theme-toggle:hover,
.cart-btn:hover,
.wishlist-btn:hover {
  background: var(--primary-color);
  color: white;
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow);
}

.cart-count,
.wishlist-count {
  position: absolute;
  top: -5px;
  right: -5px;
  background: var(--error-color);
  color: white;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.2rem 0.4rem;
  border-radius: 50%;
  min-width: 20px;
  height: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  transform: scale(0);
  transition: transform var(--transition-normal);
}

.cart-count.show,
.wishlist-count.show {
  transform: scale(1);
}

.login-btn {
  background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
  color: white;
  border: none;
  padding: 0.75rem 1.5rem;
  border-radius: 0.5rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-normal);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.login-btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow);
}

.mobile-menu-toggle {
  display: none;
  flex-direction: column;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
}

.mobile-menu-toggle span {
  width: 25px;
  height: 3px;
  background: var(--text-primary);
  margin: 3px 0;
  transition: var(--transition-normal);
}

/* ===== HERO SECTION ===== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 0 2rem;
  position: relative;
  overflow: hidden;
}

.hero-content {
  max-width: var(--container-max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
  width: 100%;
}

.hero-title {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 1.5rem;
}

.gradient-text {
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--text-secondary);
  margin-bottom: 2rem;
  line-height: 1.6;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.cta-primary,
.cta-secondary {
  padding: 1rem 2rem;
  border-radius: 0.75rem;
  font-weight: 600;
  font-size: 1.1rem;
  cursor: pointer;
  transition: all var(--transition-normal);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  border: none;
}

.cta-primary {
  background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
  color: white;
}

.cta-primary:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-glow);
}

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

.cta-secondary:hover {
  background: var(--glass-border);
  transform: translateY(-3px);
}

.hero-visual {
  position: relative;
  height: 500px;
}

.floating-cards {
  position: relative;
  width: 100%;
  height: 100%;
}

.floating-card {
  position: absolute;
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: 1rem;
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  color: var(--text-primary);
  font-weight: 600;
  box-shadow: var(--shadow-lg);
  animation: float 6s ease-in-out infinite;
}

.floating-card i {
  font-size: 2rem;
  color: var(--primary-color);
}

.card-1 {
  top: 20%;
  left: 10%;
  animation-delay: 0s;
}

.card-2 {
  top: 50%;
  right: 20%;
  animation-delay: 2s;
}

.card-3 {
  bottom: 20%;
  left: 30%;
  animation-delay: 4s;
}

/* ===== SEARCH SECTION ===== */
.search-section {
  padding: var(--section-padding);
  background: var(--bg-secondary);
}

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

.search-header {
  text-align: center;
  margin-bottom: 3rem;
}

.search-header h2 {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 1rem;
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.search-header p {
  font-size: 1.2rem;
  color: var(--text-secondary);
}

.search-container {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  max-width: 800px;
  margin: 0 auto;
}

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

.search-icon {
  position: absolute;
  left: 1rem;
  color: var(--text-muted);
  z-index: 1;
}

#searchInput {
  width: 100%;
  padding: 1rem 1rem 1rem 3rem;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 0.75rem;
  color: var(--text-primary);
  font-size: 1.1rem;
  transition: all var(--transition-normal);
  backdrop-filter: blur(20px);
}

#searchInput:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

#searchInput::placeholder {
  color: var(--text-muted);
}

.voice-search {
  position: absolute;
  right: 1rem;
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 0.5rem;
  border-radius: 0.5rem;
  transition: all var(--transition-normal);
}

.voice-search:hover {
  color: var(--primary-color);
  background: var(--glass-bg);
}

.filter-controls {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.filter-select {
  flex: 1;
  min-width: 200px;
  padding: 0.75rem 1rem;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 0.5rem;
  color: var(--text-primary);
  font-size: 1rem;
  cursor: pointer;
  transition: all var(--transition-normal);
}

.filter-select:focus {
  outline: none;
  border-color: var(--primary-color);
}

.filter-toggle {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  color: var(--text-primary);
  padding: 0.75rem 1.5rem;
  border-radius: 0.5rem;
  cursor: pointer;
  transition: all var(--transition-normal);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 500;
}

.filter-toggle:hover {
  background: var(--primary-color);
  color: white;
}

.advanced-filters {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 1rem;
  padding: 2rem;
  margin-top: 1.5rem;
  backdrop-filter: blur(20px);
  display: none;
  animation: slideDown 0.3s ease;
}

.advanced-filters.show {
  display: block;
}

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

.filter-group {
  margin-bottom: 2rem;
}

.filter-group:last-child {
  margin-bottom: 0;
}

.filter-group label {
  display: block;
  font-weight: 600;
  margin-bottom: 1rem;
  color: var(--text-primary);
}

.price-range {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.price-range input[type="range"] {
  width: 100%;
  height: 6px;
  background: var(--border-color);
  border-radius: 3px;
  outline: none;
  -webkit-appearance: none;
}

.price-range input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 20px;
  height: 20px;
  background: var(--primary-color);
  border-radius: 50%;
  cursor: pointer;
}

.price-display {
  text-align: center;
  font-weight: 600;
  color: var(--primary-color);
}

.rating-filter,
.feature-tags {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.rating-btn,
.tag-btn {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  color: var(--text-secondary);
  padding: 0.5rem 1rem;
  border-radius: 2rem;
  cursor: pointer;
  transition: all var(--transition-normal);
  font-size: 0.9rem;
}

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

/* ===== SOFTWARE SECTION ===== */
.software-section {
  padding: var(--section-padding);
}

.section-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 2rem;
  flex-wrap: wrap;
  gap: 1rem;
}

.view-controls {
  display: flex;
  gap: 0.5rem;
  background: var(--glass-bg);
  padding: 0.5rem;
  border-radius: 0.75rem;
  border: 1px solid var(--glass-border);
}

.view-btn {
  background: none;
  border: none;
  color: var(--text-secondary);
  padding: 0.75rem;
  border-radius: 0.5rem;
  cursor: pointer;
  transition: all var(--transition-normal);
  width: 45px;
  height: 45px;
  display: flex;
  align-items: center;
  justify-content: center;
}

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

.results-info {
  color: var(--text-secondary);
  font-weight: 500;
}

/* ===== SKELETON LOADING ===== */
.skeleton-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 2rem;
  margin-bottom: 2rem;
}

.skeleton-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 1rem;
  padding: 1.5rem;
  animation: skeleton-pulse 1.5s ease-in-out infinite;
}

.skeleton-card::before {
  content: '';
  display: block;
  width: 100%;
  height: 200px;
  background: var(--border-color);
  border-radius: 0.5rem;
  margin-bottom: 1rem;
}

.skeleton-card::after {
  content: '';
  display: block;
  width: 70%;
  height: 20px;
  background: var(--border-color);
  border-radius: 0.25rem;
}

@keyframes skeleton-pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

/* ===== SOFTWARE GRID ===== */
.software-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 2rem;
  margin-bottom: 3rem;
}

.software-grid.list-view {
  grid-template-columns: 1fr;
}

.software-grid.masonry-view {
  columns: 3;
  column-gap: 2rem;
}

.software-grid.masonry-view .software-item {
  break-inside: avoid;
  margin-bottom: 2rem;
}

.software-item {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 1rem;
  overflow: hidden;
  cursor: pointer;
  transition: all var(--transition-normal);
  backdrop-filter: blur(20px);
  position: relative;
  animation: fadeInUp 0.6s ease forwards;
  opacity: 0;
  transform: translateY(30px);
}

.software-item:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-xl), var(--shadow-glow);
  border-color: var(--primary-color);
}

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

.software-item img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  transition: transform var(--transition-normal);
}

.software-item:hover img {
  transform: scale(1.05);
}

.software-info {
  padding: 1.5rem;
}

.software-info h3 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

.software-info p {
  color: var(--text-secondary);
  margin-bottom: 1rem;
  line-height: 1.5;
}

.software-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
}

.software-rating {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  color: var(--warning-color);
}

.software-price {
  font-weight: 600;
  color: var(--success-color);
  font-size: 1.1rem;
}

.software-actions {
  display: flex;
  gap: 0.5rem;
}

.btn-primary,
.btn-secondary {
  padding: 0.75rem 1rem;
  border-radius: 0.5rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-normal);
  border: none;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex: 1;
  justify-content: center;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
  color: white;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow);
}

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

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

.wishlist-btn-item {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  color: var(--text-secondary);
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-normal);
  backdrop-filter: blur(20px);
}

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

/* ===== NO RESULTS ===== */
.no-results {
  text-align: center;
  padding: 4rem 2rem;
  color: var(--text-secondary);
}

.no-results i {
  font-size: 4rem;
  margin-bottom: 1rem;
  opacity: 0.5;
}

.no-results h3 {
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

.reset-filters-btn {
  background: var(--primary-color);
  color: white;
  border: none;
  padding: 0.75rem 1.5rem;
  border-radius: 0.5rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-normal);
  margin-top: 1rem;
}

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

/* ===== LOAD MORE ===== */
.load-more-container {
  text-align: center;
  margin-top: 3rem;
}

.load-more-btn {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  color: var(--text-primary);
  padding: 1rem 2rem;
  border-radius: 0.75rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-normal);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

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

/* ===== TRENDING SECTION ===== */
.trending-section {
  padding: var(--section-padding);
  background: var(--bg-secondary);
}

.section-title {
  font-size: 2.5rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: 3rem;
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.trending-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}

/* ===== CART SIDEBAR ===== */
.cart-sidebar {
  position: fixed;
  top: 0;
  right: -400px;
  width: 400px;
  height: 100vh;
  background: var(--bg-secondary);
  border-left: 1px solid var(--border-color);
  z-index: 2000;
  transition: right var(--transition-normal);
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-xl);
}

.cart-sidebar.open {
  right: 0;
}

.cart-header {
  padding: 1.5rem;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.cart-header h3 {
  font-size: 1.25rem;
  font-weight: 600;
}

.close-cart {
  background: none;
  border: none;
  color: var(--text-secondary);
  font-size: 1.5rem;
  cursor: pointer;
  padding: 0.5rem;
  border-radius: 0.5rem;
  transition: all var(--transition-normal);
}

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

.cart-items {
  flex: 1;
  overflow-y: auto;
  padding: 1rem;
}

.cart-footer {
  padding: 1.5rem;
  border-top: 1px solid var(--border-color);
}

.cart-total {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 1rem;
  text-align: center;
}

.checkout-btn {
  width: 100%;
  background: linear-gradient(135deg, var(--success-color), #059669);
  color: white;
  border: none;
  padding: 1rem;
  border-radius: 0.75rem;
  font-weight: 600;
  font-size: 1.1rem;
  cursor: pointer;
  transition: all var(--transition-normal);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
}

.checkout-btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

/* ===== CART ITEMS ===== */
.empty-cart {
  text-align: center;
  padding: 3rem 2rem;
  color: var(--text-secondary);
}

.empty-cart i {
  font-size: 3rem;
  margin-bottom: 1rem;
  opacity: 0.5;
}

.empty-cart p {
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
}

.empty-cart small {
  color: var(--text-muted);
}

.cart-item {
  display: flex;
  gap: 1rem;
  padding: 1rem;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 0.75rem;
  margin-bottom: 1rem;
  transition: all var(--transition-normal);
}

.cart-item:hover {
  background: var(--glass-border);
}

.cart-item img {
  width: 80px;
  height: 60px;
  object-fit: cover;
  border-radius: 0.5rem;
  flex-shrink: 0;
}

.cart-item-info {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.cart-item-info h4 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin: 0;
}

.cart-item-price {
  color: var(--success-color);
  font-weight: 600;
  font-size: 0.9rem;
}

.quantity-controls {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.qty-btn {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  color: var(--text-primary);
  width: 30px;
  height: 30px;
  border-radius: 0.25rem;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-normal);
  font-weight: 600;
}

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

.quantity {
  min-width: 30px;
  text-align: center;
  font-weight: 600;
  color: var(--text-primary);
}

.remove-item {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 0.5rem;
  border-radius: 0.25rem;
  transition: all var(--transition-normal);
  flex-shrink: 0;
}

.remove-item:hover {
  color: var(--error-color);
  background: var(--glass-bg);
}

/* ===== MODAL ===== */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(10px);
  z-index: 3000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
}

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

.software-modal {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 1rem;
  max-width: 800px;
  max-height: 90vh;
  width: 90%;
  overflow-y: auto;
  position: relative;
  transform: scale(0.9);
  transition: transform var(--transition-normal);
}

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

.modal-close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  color: var(--text-secondary);
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-normal);
  z-index: 1;
}

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

.modal-header {
  padding: 2rem;
  display: flex;
  gap: 2rem;
  border-bottom: 1px solid var(--border-color);
}

.modal-image {
  width: 200px;
  height: 150px;
  object-fit: cover;
  border-radius: 0.75rem;
  flex-shrink: 0;
}

.modal-info {
  flex: 1;
}

.modal-info h2 {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 1rem;
  color: var(--text-primary);
}

.modal-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
}

.modal-rating {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--warning-color);
}

.modal-rating span {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.modal-price {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--success-color);
}

.modal-tags {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.tag {
  background: var(--glass-bg);
  color: var(--text-secondary);
  padding: 0.25rem 0.75rem;
  border-radius: 1rem;
  font-size: 0.85rem;
  border: 1px solid var(--glass-border);
}

.modal-body {
  padding: 2rem;
}

.modal-body h3 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 1rem;
  color: var(--text-primary);
}

.modal-description {
  margin-bottom: 2rem;
}

.modal-description p {
  color: var(--text-secondary);
  line-height: 1.6;
}

.modal-features {
  margin-bottom: 2rem;
}

.feature-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
}

.feature-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 0.5rem;
}

.feature-item i {
  color: var(--success-color);
}

.modal-screenshots {
  margin-bottom: 2rem;
}

.screenshot-gallery {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1rem;
}

.screenshot {
  width: 100%;
  height: 150px;
  object-fit: cover;
  border-radius: 0.5rem;
  border: 1px solid var(--border-color);
  transition: transform var(--transition-normal);
  cursor: pointer;
}

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

.modal-reviews {
  margin-bottom: 2rem;
}

.review-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.review-item {
  padding: 1rem;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 0.75rem;
}

.review-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.5rem;
}

.review-header strong {
  color: var(--text-primary);
}

.review-rating {
  color: var(--warning-color);
  font-size: 0.9rem;
}

.review-item p {
  color: var(--text-secondary);
  font-style: italic;
  margin: 0;
}

.modal-actions {
  padding: 2rem;
  border-top: 1px solid var(--border-color);
  display: flex;
  gap: 1rem;
}

.modal-btn {
  flex: 1;
  padding: 1rem 2rem;
  border-radius: 0.75rem;
  font-weight: 600;
  font-size: 1.1rem;
  cursor: pointer;
  transition: all var(--transition-normal);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  border: none;
}

/* ===== TOAST NOTIFICATIONS ===== */
.toast-container {
  position: fixed;
  top: 90px;
  right: 2rem;
  z-index: 4000;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.toast {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 0.75rem;
  padding: 1rem 1.5rem;
  color: var(--text-primary);
  backdrop-filter: blur(20px);
  box-shadow: var(--shadow-lg);
  transform: translateX(400px);
  transition: transform var(--transition-normal);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  max-width: 350px;
}

.toast.show {
  transform: translateX(0);
}

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

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

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

.toast i {
  font-size: 1.25rem;
}

.toast.success i {
  color: var(--success-color);
}

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

.toast.warning i {
  color: var(--warning-color);
}

/* ===== BACK TO TOP ===== */
.back-to-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  background: var(--primary-color);
  color: white;
  border: none;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-normal);
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  z-index: 1000;
}

.back-to-top.show {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top:hover {
  background: var(--primary-dark);
  transform: translateY(-5px);
  box-shadow: var(--shadow-glow);
}

/* ===== RESPONSIVE DESIGN ===== */
@media (max-width: 1024px) {
  .hero-content {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .nav-menu {
    display: none;
  }
  
  .mobile-menu-toggle {
    display: flex;
  }
  
  .software-grid.masonry-view {
    columns: 2;
  }
  
  .modal-header {
    flex-direction: column;
    text-align: center;
  }
  
  .modal-image {
    width: 100%;
    height: 200px;
  }
}

@media (max-width: 768px) {
  .nav-container {
    padding: 0 1rem;
  }
  
  .container {
    padding: 0 1rem;
  }
  
  .hero {
    padding: 0 1rem;
  }
  
  .hero-actions {
    justify-content: center;
  }
  
  .filter-controls {
    flex-direction: column;
  }
  
  .section-header {
    flex-direction: column;
    align-items: stretch;
  }
  
  .software-grid {
    grid-template-columns: 1fr;
  }
  
  .software-grid.masonry-view {
    columns: 1;
  }
  
  .cart-sidebar {
    width: 100%;
    right: -100%;
  }
  
  .toast-container {
    right: 1rem;
    left: 1rem;
  }
  
  .toast {
    max-width: none;
  }
  
  .modal-actions {
    flex-direction: column;
  }
  
  .feature-list {
    grid-template-columns: 1fr;
  }
  
  .screenshot-gallery {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .hero-title {
    font-size: 2rem;
  }
  
  .search-header h2 {
    font-size: 2rem;
  }
  
  .section-title {
    font-size: 2rem;
  }
  
  .advanced-filters {
    padding: 1rem;
  }
  
  .feature-tags,
  .rating-filter {
    flex-direction: column;
  }
  
  .modal-body {
    padding: 1rem;
  }
  
  .modal-header {
    padding: 1rem;
  }
  
  .modal-actions {
    padding: 1rem;
  }
}

/* ===== UTILITY CLASSES ===== */
.hidden {
  display: none !important;
}

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

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

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: 0.25rem; }
.mb-2 { margin-bottom: 0.5rem; }
.mb-3 { margin-bottom: 1rem; }
.mb-4 { margin-bottom: 1.5rem; }
.mb-5 { margin-bottom: 2rem; }

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: 0.25rem; }
.mt-2 { margin-top: 0.5rem; }
.mt-3 { margin-top: 1rem; }
.mt-4 { margin-top: 1.5rem; }
.mt-5 { margin-top: 2rem; }