:root {
  --color-primary: #ff4f00;
  --color-bg: #0a0a0a;
  --color-surface: #1a1a1a;
  --color-text: #ffffff;
  --color-text-muted: #a0a0a0;
  --color-border: #2a2a2a;
  --color-accent: #ff6b2c;
  --font-display: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --spacing-xs: 8px;
  --spacing-sm: 16px;
  --spacing-md: 24px;
  --spacing-lg: 48px;
  --spacing-xl: 64px;
  --radius-sm: 4px;
  --radius-md: 8px;
  --shadow-border: 0 0 0 1px var(--color-border);
}

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

body {
  font-family: var(--font-body);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

header {
  position: sticky;
  top: 0;
  background: rgba(10, 10, 10, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
  z-index: 1000;
}

nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-sm) 0;
}

.logo {
  font-size: 24px;
  font-weight: 700;
  color: var(--color-primary);
  text-decoration: none;
}

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

.nav-links a {
  color: var(--color-text);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.2s;
}

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

.lang-switch {
  display: flex;
  gap: var(--spacing-xs);
  margin-left: var(--spacing-md);
}

.lang-btn {
  padding: 4px 12px;
  background: transparent;
  border: 1px solid var(--color-border);
  color: var(--color-text-muted);
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 14px;
  transition: all 0.2s;
}

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

.hero {
  padding: var(--spacing-xl) 0;
  text-align: center;
}

.hero h1 {
  font-size: 56px;
  font-weight: 700;
  line-height: 1.1;
  margin-bottom: var(--spacing-md);
}

.hero .highlight {
  color: var(--color-primary);
}

.hero p {
  font-size: 20px;
  color: var(--color-text-muted);
  max-width: 700px;
  margin: 0 auto var(--spacing-lg);
}

.cta-group {
  display: flex;
  gap: var(--spacing-sm);
  justify-content: center;
  flex-wrap: wrap;
}

.btn {
  padding: 16px 32px;
  border-radius: var(--radius-md);
  font-weight: 600;
  text-decoration: none;
  transition: all 0.2s;
  display: inline-block;
  border: none;
  cursor: pointer;
  font-size: 16px;
}

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

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

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

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

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

.section-title {
  font-size: 40px;
  font-weight: 700;
  margin-bottom: var(--spacing-lg);
  text-align: center;
}

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

.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-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--spacing-md);
  transition: all 0.3s;
}

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

.card h3 {
  font-size: 24px;
  margin-bottom: var(--spacing-sm);
  color: var(--color-primary);
}

.card p {
  color: var(--color-text-muted);
  line-height: 1.7;
}

.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-lg);
  text-align: center;
  margin: var(--spacing-xl) 0;
}

.stat-item h3 {
  font-size: 48px;
  color: var(--color-primary);
  font-weight: 700;
}

.stat-item p {
  color: var(--color-text-muted);
  margin-top: var(--spacing-xs);
}

footer {
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  padding: var(--spacing-lg) 0;
  margin-top: var(--spacing-xl);
}

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

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

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

.footer-section a {
  color: var(--color-text-muted);
  text-decoration: none;
  display: block;
  margin-bottom: var(--spacing-xs);
  transition: color 0.2s;
}

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

.footer-bottom {
  text-align: center;
  margin-top: var(--spacing-lg);
  padding-top: var(--spacing-md);
  border-top: 1px solid var(--color-border);
  color: var(--color-text-muted);
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
  gap: var(--spacing-lg);
}

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

.product-card:hover {
  border-color: var(--color-primary);
  transform: translateY(-4px);
}

.product-image {
  width: 100%;
  height: 250px;
  background: linear-gradient(135deg, #1a1a1a 0%, #2a2a2a 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 48px;
  color: var(--color-primary);
}

.product-content {
  padding: var(--spacing-md);
}

.product-content h3 {
  font-size: 24px;
  margin-bottom: var(--spacing-sm);
  color: var(--color-primary);
}

.product-specs {
  list-style: none;
  margin: var(--spacing-sm) 0;
}

.product-specs li {
  padding: 4px 0;
  color: var(--color-text-muted);
  font-size: 14px;
}

.news-list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.news-item {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--spacing-md);
  display: flex;
  gap: var(--spacing-md);
  transition: all 0.3s;
}

.news-item:hover {
  border-color: var(--color-primary);
}

.news-date {
  flex-shrink: 0;
  width: 80px;
  text-align: center;
  padding: var(--spacing-sm);
  background: var(--color-bg);
  border-radius: var(--radius-sm);
}

.news-date .day {
  font-size: 32px;
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1;
}

.news-date .month {
  font-size: 14px;
  color: var(--color-text-muted);
  text-transform: uppercase;
}

.news-content h3 {
  font-size: 24px;
  margin-bottom: var(--spacing-xs);
  color: var(--color-text);
}

.news-content p {
  color: var(--color-text-muted);
  line-height: 1.7;
}

.case-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
  gap: var(--spacing-lg);
}

.case-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: all 0.3s;
}

.case-card:hover {
  border-color: var(--color-primary);
  transform: translateY(-4px);
}

.case-image {
  width: 100%;
  height: 200px;
  background: linear-gradient(135deg, #1a1a1a 0%, #2a2a2a 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 64px;
  color: var(--color-primary);
}

.case-content {
  padding: var(--spacing-md);
}

.case-content h3 {
  font-size: 24px;
  margin-bottom: var(--spacing-sm);
  color: var(--color-primary);
}

.case-meta {
  display: flex;
  gap: var(--spacing-md);
  margin: var(--spacing-sm) 0;
  font-size: 14px;
  color: var(--color-text-muted);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-xl);
  margin-top: var(--spacing-lg);
}

.contact-form {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--spacing-lg);
}

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

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

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 12px;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: 16px;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-primary);
}

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

.contact-info {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.info-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--spacing-md);
}

.info-card h3 {
  color: var(--color-primary);
  margin-bottom: var(--spacing-sm);
  font-size: 20px;
}

.info-card p {
  color: var(--color-text-muted);
  line-height: 1.8;
}

.timeline {
  position: relative;
  padding-left: 40px;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--color-border);
}

.timeline-item {
  position: relative;
  margin-bottom: var(--spacing-lg);
}

.timeline-item::before {
  content: '';
  position: absolute;
  left: -46px;
  top: 0;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--color-primary);
  border: 2px solid var(--color-bg);
}

.timeline-year {
  font-size: 24px;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: var(--spacing-xs);
}

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

@media (max-width: 768px) {
  .hero h1 {
    font-size: 36px;
  }
  
  .nav-links {
    display: none;
  }
  
  .contact-grid {
    grid-template-columns: 1fr;
  }
  
  .product-grid,
  .case-grid {
    grid-template-columns: 1fr;
  }
}