/**
 * Design Tokens - Цветовая система согласно ТЗ
 */
:root {
  /* Primary Accent - Яркий акцентный оранжевый (Flame-like Orange) */
  --color-primary: #FF6B35;
  --color-primary-hover: #FF5722;
  --color-primary-light: #FF8A65;
  
  /* Background - Глубокий тёмный графит / чёрный градиент */
  --color-bg-primary: #0F0F0F;
  --color-bg-secondary: #1A1A1A;
  --color-bg-card: #1E1E1E;
  --color-bg-gradient: linear-gradient(135deg, #0F0F0F 0%, #1A1A1A 100%);
  
  /* Secondary - Тёплый золотистый оттенок (Champion-like Gold) */
  --color-secondary: #FFB84D;
  --color-secondary-hover: #FFA726;
  
  /* Neutral - Белый / светло-серый */
  --color-text-primary: #FFFFFF;
  --color-text-secondary: #E0E0E0;
  --color-text-tertiary: #B0B0B0;
  
  /* Borders */
  --color-border: #333333;
  --color-border-light: #2A2A2A;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.5);
  
  /* Border radius */
  --radius-md: 8px;
  --radius-lg: 12px;
  
  /* Typography - Primary font (геометрический гротеск для заголовков/KPI) */
  --font-heading: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  
  /* Typography - Secondary font (нейтральный, высокочитаемый для текста) */
  --font-body: 'Open Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
}

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

body {
  font-family: var(--font-body);
  line-height: 1.6;
  color: var(--color-text-primary);
  background: var(--color-bg-primary);
  background-image: var(--color-bg-gradient);
  min-height: 100vh;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

.navbar {
  background: var(--color-bg-card);
  padding: 1rem 0;
  box-shadow: var(--shadow-md);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 100;
}

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

.logo {
  font-size: 1.5rem;
  font-weight: bold;
  color: var(--color-primary);
  text-decoration: none;
  font-family: var(--font-heading);
}

.navbar-menu {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav-link {
  color: var(--color-text-secondary);
  text-decoration: none;
  font-weight: 500;
  transition: color var(--transition-base);
}

.nav-link:hover {
  color: var(--color-primary);
}

.btn-primary {
  background: var(--color-primary);
  color: var(--color-text-primary);
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-md);
  text-decoration: none;
  font-weight: var(--font-weight-medium);
  transition: background var(--transition-base);
  border: none;
  cursor: pointer;
  display: inline-block;
}

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

.btn-secondary {
  background: transparent;
  color: var(--color-text-primary);
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-md);
  text-decoration: none;
  font-weight: var(--font-weight-medium);
  border: 1px solid var(--color-border);
  transition: border-color var(--transition-base), color var(--transition-base);
  cursor: pointer;
  display: inline-block;
}

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

.btn-large {
  padding: 1rem 2rem;
  font-size: 1.125rem;
}

.hero {
  padding: 6rem 0;
  text-align: center;
  background: var(--color-bg-gradient);
  color: var(--color-text-primary);
  border-bottom: 1px solid var(--color-border);
}

.hero-title {
  font-size: 3rem;
  font-weight: bold;
  margin-bottom: 1rem;
}

.hero-subtitle {
  font-size: 1.25rem;
  margin-bottom: 2rem;
  opacity: 0.9;
}

.hero-cta {
  display: flex;
  gap: 1rem;
  justify-content: center;
}

.features {
  padding: 4rem 0;
}

.section-title {
  text-align: center;
  font-size: 2.5rem;
  margin-bottom: 3rem;
}

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

.feature-card {
  padding: 2rem;
  background: var(--color-bg-card);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--color-border);
  text-align: center;
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

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

.feature-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.feature-icon i {
  font-size: 3rem;
  color: var(--color-primary);
}

.integration-icon {
  font-size: 2.5rem;
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.integration-icon i {
  font-size: 2.5rem;
  color: var(--color-primary);
}

.logo i {
  margin-right: 0.5rem;
  vertical-align: middle;
}

.feature-card h3 {
  margin-bottom: 1rem;
  color: var(--color-text-primary);
  font-family: var(--font-heading);
}

.pricing-section {
  padding: 4rem 0;
}

.page-title {
  text-align: center;
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

.page-subtitle {
  text-align: center;
  color: var(--color-text-secondary);
  margin-bottom: 3rem;
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.pricing-card {
  background: var(--color-bg-card);
  padding: 2rem;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--color-border);
  text-align: center;
  position: relative;
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.pricing-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.pricing-card.featured {
  border: 2px solid var(--color-primary);
  transform: scale(1.05);
  background: var(--color-bg-secondary);
}

.badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-primary);
  color: var(--color-text-primary);
  padding: 0.25rem 1rem;
  border-radius: 12px;
  font-size: 0.875rem;
  font-weight: var(--font-weight-medium);
}

.pricing-card h3 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
}

.price {
  margin-bottom: 2rem;
}

.price .amount {
  font-size: 3rem;
  font-weight: bold;
  color: var(--color-primary);
  font-family: var(--font-heading);
}

.price .period {
  color: var(--color-text-tertiary);
}

.features-list {
  list-style: none;
  text-align: left;
  margin-bottom: 2rem;
}

.features-list li {
  padding: 0.5rem 0;
}

.cta-section {
  padding: 4rem 0;
  background: var(--color-bg-secondary);
  text-align: center;
  border-top: 1px solid var(--color-border);
}

.footer {
  background: var(--color-bg-primary);
  color: var(--color-text-primary);
  padding: 3rem 0 1rem;
  border-top: 1px solid var(--color-border);
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem;
  margin-bottom: 2rem;
}

.footer-section h4 {
  margin-bottom: 1rem;
}

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

.footer-section a {
  color: var(--color-text-tertiary);
  text-decoration: none;
  display: block;
  padding: 0.25rem 0;
  transition: color var(--transition-base);
}

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

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

.integrations-section,
.blog-section,
.docs-section {
  padding: 4rem 0;
}

.integrations-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.integration-card {
  background: var(--color-bg-card);
  padding: 2rem;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--color-border);
  text-align: center;
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

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

.integration-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
}

.integration-card h3 {
  margin-bottom: 0.5rem;
}

.status {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  border-radius: 12px;
  font-size: 0.875rem;
  margin-top: 1rem;
}

.status.available {
  background: rgba(76, 175, 80, 0.2);
  color: #4CAF50;
  border: 1px solid rgba(76, 175, 80, 0.3);
}

.status.coming-soon {
  background: rgba(255, 184, 77, 0.2);
  color: var(--color-secondary);
  border: 1px solid rgba(255, 184, 77, 0.3);
}

.legal-section {
  padding: 4rem 0;
}

.legal-content {
  max-width: 800px;
  margin: 0 auto;
  background: var(--color-bg-card);
  padding: 2rem;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
}

.legal-content h2 {
  margin-top: 2rem;
  margin-bottom: 1rem;
}

.product-hero {
  padding: 4rem 0;
  text-align: center;
  background: var(--color-bg-secondary);
  border-bottom: 1px solid var(--color-border);
}

.modules {
  padding: 4rem 0;
}

.module-item {
  margin-bottom: 3rem;
  padding: 2rem;
  background: var(--color-bg-card);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--color-border);
}

.module-content h2 {
  margin-bottom: 1rem;
  color: var(--color-primary);
  font-family: var(--font-heading);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.module-content h2 i {
  font-size: 1.5rem;
}

.module-content ul {
  margin-top: 1rem;
  margin-left: 2rem;
}

.module-content li {
  margin-bottom: 0.5rem;
}