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

:root {
  /* Colors */
  --background: #ffffff;
  --foreground: #0a0a0a;
  --card: #ffffff;
  --card-foreground: #0a0a0a;
  --primary: #18181b;
  --primary-foreground: #fafafa;
  --secondary: #f4f4f5;
  --secondary-foreground: #18181b;
  --muted: #f4f4f5;
  --muted-foreground: #71717a;
  --accent: #f4f4f5;
  --accent-foreground: #18181b;
  --destructive: #ef4444;
  --destructive-foreground: #fafafa;
  --border: #e4e4e7;
  --input: #e4e4e7;
  --ring: #71717a;

  /* Typography */
  --font-sans: "Inter", sans-serif;
  --font-mono: "JetBrains Mono", monospace;

  /* Spacing */
  --radius: 0.625rem;
}

body {
  font-family: var(--font-sans);
  background-color: var(--background);
  color: var(--foreground);
  line-height: 1.6;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1rem;
}

/* Animations */
@keyframes pulse-subtle {
  0%,
  100% {
    opacity: 1;
  }
  50% {
    opacity: 0.8;
  }
}

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

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

.pulse-subtle {
  animation: pulse-subtle 3s ease-in-out infinite;
}

.fade-in {
  animation: fade-in 0.6s ease-out;
}

.float-gentle {
  animation: float-gentle 4s ease-in-out infinite;
}

.hover-glow {
  transition: all 0.3s ease;
}

.hover-glow:hover {
  box-shadow: 0 0 20px rgba(0, 0, 0, 0.1);
  transform: translateY(-1px);
}

/* Header */
.header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
  padding: 1rem 0;
}

.header-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

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

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

.logo-text {
  font-family: var(--font-mono);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary);
}

.search-container {
  flex: 1;
  max-width: 28rem;
  margin: 0 2rem;
}

.search-box {
  position: relative;
  width: 100%;
}

.search-icon {
  position: absolute;
  left: 0.75rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--muted-foreground);
}

.search-input {
  width: 100%;
  padding: 0.5rem 0.75rem 0.5rem 2.5rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--background);
  font-size: 0.875rem;
  outline: none;
  transition: border-color 0.2s;
}

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

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

.icon-btn {
  position: relative;
  padding: 0.5rem;
  border: none;
  background: transparent;
  border-radius: var(--radius);
  cursor: pointer;
  color: var(--foreground);
  transition: background-color 0.2s;
}

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

.cart-badge {
  position: absolute;
  top: -0.5rem;
  right: -0.5rem;
  background: var(--primary);
  color: var(--primary-foreground);
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.125rem 0.375rem;
  border-radius: 9999px;
  min-width: 1.25rem;
  height: 1.25rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.mobile-search {
  margin-top: 1rem;
}

.desktop-only {
  display: block;
}

.mobile-only {
  display: none;
}

/* Hero Section */
.hero {
  position: relative;
  background: linear-gradient(135deg, var(--primary) 0%, rgba(24, 24, 27, 0.8) 100%);
  padding: 5rem 0;
  overflow: hidden;
}

.hero-bg-elements {
  position: absolute;
  inset: 0;
  opacity: 0.05;
}

.floating-element {
  position: absolute;
  width: 5rem;
  height: 5rem;
  border: 1px solid var(--primary-foreground);
  border-radius: 50%;
}

.hero-content {
  position: relative;
  z-index: 10;
  text-align: center;
}

.hero-title {
  font-family: var(--font-mono);
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 700;
  margin-bottom: 1.5rem;
  color: var(--primary-foreground);
}

.tech-text {
  color: #2563eb;
}

.advanced-text {
  color: var(--accent-foreground);
}

.hero-subtitle {
  font-size: clamp(1.125rem, 2vw, 1.5rem);
  color: rgba(250, 250, 250, 0.9);
  margin-bottom: 2rem;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.cta-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 2rem;
  font-size: 1.125rem;
  font-weight: 600;
  background: var(--background);
  color: var(--primary);
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  transition: all 0.3s ease;
}

.cta-btn:hover {
  background: rgba(255, 255, 255, 0.9);
}

/* Categories */
.categories {
  padding: 4rem 0;
}

.section-title {
  font-family: var(--font-mono);
  font-size: 2rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: 3rem;
}

.categories-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.5rem;
}

.category-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  text-align: center;
  cursor: pointer;
  transition: all 0.3s ease;
}

.category-card:hover {
  box-shadow: 0 0 20px rgba(0, 0, 0, 0.1);
  transform: translateY(-2px);
}

.category-image {
  width: 4rem;
  height: 4rem;
  margin: 0 auto 1rem;
  border-radius: var(--radius);
  object-fit: cover;
}

.category-name {
  font-family: var(--font-mono);
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.category-count {
  font-size: 0.875rem;
  color: var(--muted-foreground);
}

/* Products */
.products {
  padding: 4rem 0;
  background: rgba(244, 244, 245, 0.3);
}

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

.category-filters {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.filter-btn {
  padding: 0.5rem 1rem;
  border: 1px solid var(--border);
  background: var(--background);
  color: var(--foreground);
  border-radius: var(--radius);
  cursor: pointer;
  font-size: 0.875rem;
  transition: all 0.2s;
}

.filter-btn:hover,
.filter-btn.active {
  background: var(--primary);
  color: var(--primary-foreground);
  border-color: var(--primary);
}

.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem;
}

.product-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: all 0.3s ease;
}

.product-card:hover {
  box-shadow: 0 0 20px rgba(0, 0, 0, 0.1);
  transform: translateY(-2px);
}

.product-image-container {
  position: relative;
  height: 16rem;
}

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

.product-badge {
  position: absolute;
  top: 0.5rem;
  left: 0.5rem;
  padding: 0.25rem 0.5rem;
  font-size: 0.75rem;
  font-weight: 600;
  border-radius: var(--radius);
}

.badge-new {
  background: var(--primary);
  color: var(--primary-foreground);
}

.badge-out-of-stock {
  background: var(--destructive);
  color: var(--destructive-foreground);
}

.product-content {
  padding: 1.5rem;
}

.product-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 1rem;
}

.product-info h4 {
  font-family: var(--font-mono);
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: 0.25rem;
}

.product-category {
  font-size: 0.875rem;
  color: var(--muted-foreground);
}

.favorite-btn {
  padding: 0.5rem;
  border: none;
  background: transparent;
  cursor: pointer;
  border-radius: var(--radius);
  transition: background-color 0.2s;
}

.favorite-btn:hover {
  background: var(--muted);
}

.product-rating {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.star-rating {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.star {
  color: #fbbf24;
  fill: #fbbf24;
}

.rating-text {
  font-size: 0.875rem;
  font-weight: 500;
}

.reviews-count {
  font-size: 0.875rem;
  color: var(--muted-foreground);
}

.product-pricing {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.current-price {
  font-family: var(--font-mono);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary);
}

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

.add-to-cart-btn {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem;
  background: var(--primary);
  color: var(--primary-foreground);
  border: none;
  border-radius: var(--radius);
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
}

.add-to-cart-btn:hover:not(:disabled) {
  background: rgba(24, 24, 27, 0.9);
}

.add-to-cart-btn:disabled {
  background: var(--muted);
  color: var(--muted-foreground);
  cursor: not-allowed;
}

/* Cart Sidebar */
.cart-sidebar {
  position: fixed;
  top: 0;
  right: -400px;
  width: 400px;
  height: 100vh;
  background: var(--card);
  border-left: 1px solid var(--border);
  z-index: 100;
  transition: right 0.3s ease;
  display: flex;
  flex-direction: column;
}

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

.cart-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 99;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
}

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

.cart-header {
  padding: 1.5rem;
  border-bottom: 1px solid var(--border);
  position: relative;
}

.cart-title {
  font-family: var(--font-mono);
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 0.25rem;
}

.cart-subtitle {
  font-size: 0.875rem;
  color: var(--muted-foreground);
}

.cart-close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  padding: 0.5rem;
  border: none;
  background: transparent;
  cursor: pointer;
  border-radius: var(--radius);
  transition: background-color 0.2s;
}

.cart-close:hover {
  background: var(--muted);
}

.cart-content {
  flex: 1;
  padding: 1.5rem;
  overflow-y: auto;
}

.cart-empty {
  text-align: center;
  color: var(--muted-foreground);
  padding: 2rem 0;
}

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

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

.cart-item-name {
  font-weight: 600;
  margin-bottom: 0.25rem;
}

.cart-item-price {
  font-size: 0.875rem;
  color: var(--muted-foreground);
}

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

.quantity-btn {
  width: 2rem;
  height: 2rem;
  border: 1px solid var(--border);
  background: transparent;
  border-radius: var(--radius);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  transition: all 0.2s;
}

.quantity-btn:hover {
  background: var(--muted);
}

.quantity-display {
  font-family: var(--font-mono);
  font-weight: 600;
  min-width: 2rem;
  text-align: center;
}

.remove-btn {
  padding: 0.25rem 0.5rem;
  background: var(--destructive);
  color: var(--destructive-foreground);
  border: none;
  border-radius: var(--radius);
  font-size: 0.75rem;
  cursor: pointer;
  transition: all 0.2s;
}

.remove-btn:hover {
  background: rgba(239, 68, 68, 0.9);
}

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

.cart-total {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
  font-weight: 600;
}

.total-price {
  font-family: var(--font-mono);
  font-size: 1.125rem;
  color: var(--primary);
}

.checkout-btn {
  width: 100%;
  padding: 0.75rem;
  background: var(--primary);
  color: var(--primary-foreground);
  border: none;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  transition: all 0.2s;
}

.checkout-btn:hover {
  background: rgba(24, 24, 27, 0.9);
}

/* Footer */
.footer {
  background: var(--card);
  border-top: 1px solid var(--border);
  padding: 4rem 0 2rem;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  margin-bottom: 3rem;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.footer-logo-text {
  font-family: var(--font-mono);
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--primary);
}

.footer-description {
  color: var(--muted-foreground);
  line-height: 1.6;
}

.footer-title {
  font-family: var(--font-mono);
  font-weight: 600;
  margin-bottom: 1rem;
}

.footer-links {
  list-style: none;
}

.footer-links li {
  color: var(--muted-foreground);
  margin-bottom: 0.5rem;
  cursor: pointer;
  transition: color 0.2s;
}

.footer-links li:hover {
  color: var(--foreground);
}

.footer-bottom {
  border-top: 1px solid var(--border);
  padding-top: 2rem;
  text-align: center;
  color: var(--muted-foreground);
  font-family: var(--font-mono);
}

/* Responsive Design */
@media (max-width: 768px) {
  .desktop-only {
    display: none;
  }

  .mobile-only {
    display: block;
  }

  .cart-sidebar {
    width: 100vw;
    right: -100vw;
  }

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

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

  .products-header {
    flex-direction: column;
    align-items: stretch;
  }

  .category-filters {
    justify-content: center;
  }

  .footer-content {
    grid-template-columns: 1fr;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .hero {
    padding: 3rem 0;
  }

  .categories,
  .products {
    padding: 2rem 0;
  }

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