:root {
  --color-bg-primary: #0a0a0a;
  --color-bg-secondary: #161616;
  --color-bg-card: #1a1a1a;
  --color-text-primary: #ffffff;
  --color-text-secondary: #b3b3b3;
  --color-accent: #ff6b35;
  --color-accent-secondary: #00d9ff;
  --color-border: #333333;
  --color-border-light: #555555;
  
  --font-family-primary: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  --font-family-mono: 'Consolas', 'Monaco', 'Courier New', monospace;
  
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-xxl: 4rem;
  
  --border-radius: 8px;
  --box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
  --transition: all 0.3s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family-primary);
  background: var(--color-bg-primary);
  color: var(--color-text-primary);
  line-height: 1.6;
  overflow-x: hidden;
}

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

header {
  background: var(--color-bg-secondary);
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: var(--spacing-sm) 0;
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
}

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

.logo {
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--color-accent);
  text-decoration: none;
  letter-spacing: -0.02em;
}

nav ul {
  display: flex;
  list-style: none;
  gap: var(--spacing-lg);
}

nav a {
  color: var(--color-text-secondary);
  text-decoration: none;
  font-weight: 500;
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--border-radius);
  transition: var(--transition);
}

nav a:hover,
nav a.active {
  color: var(--color-accent);
  background: rgba(255, 107, 53, 0.1);
}

.mobile-menu-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--color-text-primary);
  font-size: 1.5rem;
  cursor: pointer;
}

main {
  margin-top: 80px;
  min-height: calc(100vh - 80px);
}

.hero {
  background: linear-gradient(135deg, var(--color-bg-primary) 0%, var(--color-bg-secondary) 100%);
  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: radial-gradient(circle at 30% 20%, rgba(255, 107, 53, 0.1) 0%, transparent 50%),
              radial-gradient(circle at 70% 80%, rgba(0, 217, 255, 0.1) 0%, transparent 50%);
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 1;
}

.hero h1 {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 800;
  margin-bottom: var(--spacing-md);
  background: linear-gradient(135deg, var(--color-text-primary) 0%, var(--color-accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero p {
  font-size: 1.25rem;
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-lg);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.cta-button {
  display: inline-block;
  background: linear-gradient(135deg, var(--color-accent) 0%, #e55a2b 100%);
  color: white;
  text-decoration: none;
  padding: var(--spacing-md) var(--spacing-xl);
  border-radius: var(--border-radius);
  font-weight: 600;
  font-size: 1.1rem;
  transition: var(--transition);
  box-shadow: var(--box-shadow);
}

.cta-button:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(255, 107, 53, 0.4);
}

.section {
  padding: var(--spacing-xxl) 0;
}

.section-title {
  font-size: 2.5rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: var(--spacing-xl);
  color: var(--color-text-primary);
}

.grid {
  display: grid;
  gap: var(--spacing-lg);
}

.grid-2 {
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.grid-3 {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.card {
  background: var(--color-bg-card);
  padding: var(--spacing-lg);
  border-radius: var(--border-radius);
  border: 1px solid var(--color-border);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.card:hover {
  transform: translateY(-4px);
  border-color: var(--color-accent);
  box-shadow: var(--box-shadow);
}

.card-icon {
  margin-bottom: var(--spacing-md);
}

.card-icon i {
  font-size: 2.5rem;
  color: var(--color-accent);
  display: block;
}

.card-image {
  margin-bottom: var(--spacing-md);
  border-radius: var(--border-radius);
  overflow: hidden;
}

.card-image img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  transition: var(--transition);
}

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

.card h3 {
  color: var(--color-accent);
  font-size: 1.4rem;
  margin-bottom: var(--spacing-sm);
  font-weight: 600;
}

.card p {
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-sm);
}

.card .btn {
  display: inline-block;
  color: var(--color-accent);
  text-decoration: none;
  font-weight: 500;
  transition: var(--transition);
}

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

.page-header {
  background: var(--color-bg-secondary);
  padding: var(--spacing-xl) 0;
  text-align: center;
  border-bottom: 1px solid var(--color-border);
}

.page-header h1 {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: var(--spacing-sm);
}

.page-header p {
  font-size: 1.1rem;
  color: var(--color-text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

.content {
  padding: var(--spacing-xl) 0;
}

.content h2 {
  color: var(--color-accent);
  font-size: 1.8rem;
  margin-bottom: var(--spacing-md);
  margin-top: var(--spacing-lg);
}

.content h3 {
  color: var(--color-text-primary);
  font-size: 1.4rem;
  margin-bottom: var(--spacing-sm);
  margin-top: var(--spacing-md);
}

.content p {
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-md);
  line-height: 1.7;
}

.content ul, .content ol {
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-md);
  padding-left: var(--spacing-lg);
}

.content li {
  margin-bottom: var(--spacing-xs);
}

.content code {
  background: var(--color-bg-card);
  color: var(--color-accent-secondary);
  padding: 0.25rem 0.5rem;
  border-radius: 4px;
  font-family: var(--font-family-mono);
  font-size: 0.9rem;
}

.content pre {
  background: var(--color-bg-card);
  color: var(--color-text-primary);
  padding: var(--spacing-md);
  border-radius: var(--border-radius);
  overflow-x: auto;
  margin-bottom: var(--spacing-md);
  border: 1px solid var(--color-border);
}

.form {
  background: var(--color-bg-card);
  padding: var(--spacing-xl);
  border-radius: var(--border-radius);
  border: 1px solid var(--color-border);
  max-width: 600px;
  margin: 0 auto;
}

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

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

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: var(--spacing-sm);
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  color: var(--color-text-primary);
  font-family: inherit;
  transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 2px rgba(255, 107, 53, 0.2);
}

.form-group textarea {
  resize: vertical;
  min-height: 120px;
}

.btn {
  display: inline-block;
  background: linear-gradient(135deg, var(--color-accent) 0%, #e55a2b 100%);
  color: white;
  text-decoration: none;
  padding: var(--spacing-sm) var(--spacing-lg);
  border: none;
  border-radius: var(--border-radius);
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  font-family: inherit;
}

.btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(255, 107, 53, 0.3);
}

.btn-secondary {
  background: transparent;
  border: 1px solid var(--color-accent);
  color: var(--color-accent);
}

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

footer {
  background: var(--color-bg-secondary);
  padding: var(--spacing-xl) 0;
  border-top: 1px solid var(--color-border);
  text-align: center;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
  text-align: left;
}

.footer-section h4 {
  color: var(--color-accent);
  font-size: 1.2rem;
  margin-bottom: var(--spacing-sm);
  font-weight: 600;
}

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

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

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

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

.footer-bottom {
  padding-top: var(--spacing-lg);
  border-top: 1px solid var(--color-border);
  color: var(--color-text-secondary);
  font-size: 0.9rem;
}

@media (max-width: 768px) {
  .mobile-menu-toggle {
    display: block;
  }
  
  nav {
    display: none;
  }
  
  nav.active {
    display: block;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--color-bg-secondary);
    border-top: 1px solid var(--color-border);
    padding: var(--spacing-md);
  }
  
  nav.active ul {
    flex-direction: column;
    gap: var(--spacing-sm);
  }
  
  .hero {
    padding: var(--spacing-xl) 0;
  }
  
  .section {
    padding: var(--spacing-xl) 0;
  }
  
  .footer-content {
    text-align: center;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 var(--spacing-sm);
  }
  
  .hero h1 {
    font-size: 2rem;
  }
  
  .section-title {
    font-size: 2rem;
  }
  
  .card {
    padding: var(--spacing-md);
  }
  
  .form {
    padding: var(--spacing-md);
  }
}

.animate-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

.performance-showcase {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-xl);
  align-items: center;
}

.showcase-content h2 {
  color: var(--color-text-primary);
  font-size: 2.2rem;
  margin-bottom: var(--spacing-md);
}

.showcase-content p {
  color: var(--color-text-secondary);
  font-size: 1.1rem;
  margin-bottom: var(--spacing-xl);
}

.performance-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-lg);
}

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

.stat-number {
  display: flex;
  flex-direction: column;
  align-items: center;
  margin-bottom: var(--spacing-sm);
}

.stat-value {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--color-accent);
  line-height: 1;
}

.stat-unit {
  font-size: 0.9rem;
  color: var(--color-accent-secondary);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.stat-item p {
  color: var(--color-text-secondary);
  font-size: 0.9rem;
  margin: 0;
}

.showcase-image {
  position: relative;
}

.showcase-image img {
  width: 100%;
  height: 400px;
  object-fit: cover;
  border-radius: var(--border-radius);
  box-shadow: var(--box-shadow);
}

@media (max-width: 768px) {
  .performance-showcase {
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
  }
  
  .performance-stats {
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
  }
  
  .stat-value {
    font-size: 2rem;
  }
  
  .showcase-image img {
    height: 250px;
  }
}