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

:root {
  --color-bg: #0a0e14;
  --color-bg-secondary: #1a1f2e;
  --color-bg-tertiary: #242937;
  --color-primary: #00d4ff;
  --color-text: #ffffff;
  --color-text-secondary: #a0a8b8;
  --color-border: #2a3040;
}

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

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background-color: rgba(10, 14, 20, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
  z-index: 1000;
  padding: 16px 0;
}

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

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 24px;
  font-weight: 700;
  color: var(--color-text);
}

.logo-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--color-primary), #0099cc);
  border-radius: 8px;
  font-size: 20px;
  font-weight: 900;
}

.nav {
  display: flex;
  gap: 32px;
}

.nav a {
  color: var(--color-text-secondary);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.3s;
}

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

.header-right {
  display: flex;
  align-items: center;
  gap: 24px;
}

.language-switcher {
  display: flex;
  gap: 8px;
  background: var(--color-bg-secondary);
  padding: 4px;
  border-radius: 8px;
  border: 1px solid var(--color-border);
}

.lang-option {
  background: transparent;
  color: var(--color-text-secondary);
  border: none;
  padding: 8px 16px;
  border-radius: 6px;
  font-weight: 600;
  font-size: 14px;
  cursor: pointer;
  transition: all 0.2s;
}

.lang-option:hover {
  color: var(--color-primary);
}

.lang-option.active {
  background: var(--color-primary);
  color: var(--color-bg);
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-primary), #0099cc);
  color: var(--color-text);
  border: none;
  padding: 12px 24px;
  border-radius: 8px;
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.2s, box-shadow 0.2s;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(0, 212, 255, 0.3);
}

.btn-secondary {
  background: transparent;
  color: var(--color-text);
  border: 2px solid var(--color-border);
  padding: 12px 24px;
  border-radius: 8px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
}

.btn-secondary:hover {
  border-color: var(--color-primary);
  background: rgba(0, 212, 255, 0.1);
}

.btn-large {
  padding: 16px 32px;
  font-size: 16px;
}

.hero {
  padding: 120px 0 80px;
  min-height: 100vh;
}

.hero-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
  margin-bottom: 64px;
}

.hero-text h1 {
  font-size: 56px;
  line-height: 1.2;
  margin-bottom: 24px;
  display: flex;
  flex-direction: column;
}

.hero-title-main {
  color: var(--color-text);
}

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

.hero-description {
  color: var(--color-text-secondary);
  font-size: 18px;
  line-height: 1.8;
  margin-bottom: 32px;
}

.hero-buttons {
  display: flex;
  gap: 16px;
  margin-bottom: 48px;
}

.hero-stats {
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  padding: 24px;
}

.stat-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.stat-icon {
  font-size: 24px;
}

.stat-label {
  color: var(--color-primary);
  font-weight: 600;
  font-size: 14px;
  margin-bottom: 4px;
}

.stat-value {
  color: var(--color-text-secondary);
  font-size: 14px;
}

.hero-visual {
  position: relative;
}

.metrics-window {
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  overflow: hidden;
}

.window-header {
  background: var(--color-bg-tertiary);
  padding: 12px 16px;
  display: flex;
  align-items: center;
  gap: 12px;
  border-bottom: 1px solid var(--color-border);
}

.window-dots {
  display: flex;
  gap: 8px;
}

.dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}

.dot-red {
  background: #ff5f56;
}

.dot-yellow {
  background: #ffbd2e;
}

.dot-green {
  background: #27c93f;
}

.window-title {
  color: var(--color-text-secondary);
  font-size: 14px;
}

.metrics-content {
  padding: 32px;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.metric-item {
  text-align: center;
  padding: 20px;
  background: var(--color-bg);
  border-radius: 8px;
  border: 1px solid var(--color-border);
  transition: transform 0.2s;
}

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

.metric-label {
  color: var(--color-text-secondary);
  font-size: 14px;
  margin-bottom: 8px;
  font-weight: 500;
}

.metric-value {
  color: var(--color-primary);
  font-size: 32px;
  font-weight: 700;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.stats-card {
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  padding: 32px;
  transition: transform 0.2s;
}

.stats-card:hover {
  transform: translateY(-4px);
}

.stats-icon {
  font-size: 36px;
  margin-bottom: 16px;
}

.stats-label {
  color: var(--color-text-secondary);
  font-size: 14px;
  margin-bottom: 8px;
}

.stats-number {
  font-size: 48px;
  font-weight: 700;
  color: var(--color-text);
}

.features {
  padding: 80px 0;
  background: var(--color-bg-secondary);
}

.section-title {
  text-align: center;
  font-size: 48px;
  margin-bottom: 16px;
  color: var(--color-primary);
}

.section-subtitle {
  text-align: center;
  color: var(--color-text-secondary);
  font-size: 18px;
  margin-bottom: 64px;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.feature-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  padding: 32px;
  transition: all 0.3s;
}

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

.feature-icon {
  font-size: 48px;
  margin-bottom: 16px;
}

.feature-card h3 {
  color: var(--color-text);
  font-size: 20px;
  margin-bottom: 12px;
}

.feature-card p {
  color: var(--color-text-secondary);
  font-size: 14px;
  line-height: 1.6;
}

.showcase {
  padding: 80px 0;
}

.faq {
  padding: 80px 0;
  background: var(--color-bg-secondary);
}

.faq-list {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  padding: 24px;
  margin-bottom: 16px;
  cursor: pointer;
  transition: all 0.3s;
}

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

.faq-question {
  color: var(--color-text);
  font-size: 18px;
  font-weight: 600;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.faq-toggle {
  font-size: 24px;
  color: var(--color-primary);
  transition: transform 0.3s;
}

.faq-item.active .faq-toggle {
  transform: rotate(45deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease, padding 0.3s ease;
  color: var(--color-text-secondary);
  font-size: 16px;
  line-height: 1.6;
}

.faq-item.active .faq-answer {
  max-height: 500px;
  padding-top: 16px;
}

.social-buttons {
  position: fixed;
  bottom: 32px;
  right: 32px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  z-index: 1000;
}

.social-btn {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  transition: all 0.3s;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.social-btn:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.4);
}

.social-btn svg {
  width: 28px;
  height: 28px;
}

.whatsapp {
  background: #25d366;
  color: white;
}

.telegram {
  background: #0088cc;
  color: white;
}

@media (max-width: 768px) {
  .hero-content {
    grid-template-columns: 1fr;
  }

  .hero-text h1 {
    font-size: 36px;
  }

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

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

  .nav {
    display: none;
  }

  .hero-buttons {
    flex-direction: column;
  }

  .header-right {
    gap: 12px;
  }

  .language-switcher {
    gap: 4px;
    padding: 2px;
  }

  .lang-option {
    padding: 6px 12px;
    font-size: 12px;
  }

  .metrics-content {
    grid-template-columns: 1fr;
    padding: 16px;
  }
}