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

:root {
  --bg-primary: #0a0e14;
  --bg-secondary: #12171f;
  --bg-tertiary: #1a2129;
  --text-primary: #e6e8eb;
  --text-secondary: #9ca3af;
  --accent: #00d9ff;
  --accent-dark: #00a8cc;
  --border: #2a3441;
  --success: #10b981;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  color: var(--text-primary);
  background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
  background-attachment: fixed;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

.header {
  position: sticky;
  top: 0;
  background: rgba(10, 14, 20, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
  padding: 16px 0;
  z-index: 100;
}

.header .container {
  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(--accent);
  letter-spacing: 2px;
}

.logo svg {
  color: var(--accent);
}

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

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

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

.nav a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent);
  transition: width 0.2s ease;
}

.nav a:hover::after {
  width: 100%;
}

.hero {
  padding: 120px 0;
  text-align: center;
}

.hero-title {
  font-size: 64px;
  font-weight: 800;
  margin-bottom: 16px;
  background: linear-gradient(135deg, var(--accent) 0%, #00ffa3 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 28px;
  color: var(--text-secondary);
  margin-bottom: 24px;
  font-weight: 600;
}

.hero-description {
  font-size: 18px;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto 48px;
  line-height: 1.8;
}

.hero-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

.btn {
  padding: 16px 40px;
  font-size: 16px;
  font-weight: 600;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.3s ease;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-dark) 100%);
  color: var(--bg-primary);
  box-shadow: 0 4px 20px rgba(0, 217, 255, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 30px rgba(0, 217, 255, 0.5);
}

.btn-secondary {
  background: transparent;
  color: var(--accent);
  border: 2px solid var(--accent);
}

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

.btn-large {
  padding: 20px 60px;
  font-size: 18px;
}

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

.section-title {
  font-size: 48px;
  font-weight: 700;
  text-align: center;
  margin-bottom: 64px;
  color: var(--text-primary);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 32px;
}

.feature-card {
  background: var(--bg-tertiary);
  padding: 40px 32px;
  border-radius: 12px;
  border: 1px solid var(--border);
  transition: all 0.3s ease;
}

.feature-card:hover {
  transform: translateY(-8px);
  border-color: var(--accent);
  box-shadow: 0 8px 32px rgba(0, 217, 255, 0.2);
}

.feature-icon {
  width: 64px;
  height: 64px;
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-dark) 100%);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
  color: var(--bg-primary);
}

.feature-card h3 {
  font-size: 24px;
  margin-bottom: 12px;
  color: var(--text-primary);
}

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

.security {
  padding: 80px 0;
}

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

.security-text h2 {
  font-size: 42px;
  margin-bottom: 24px;
  color: var(--text-primary);
}

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

.security-list {
  list-style: none;
}

.security-list li {
  padding: 12px 0;
  padding-left: 32px;
  position: relative;
  color: var(--text-secondary);
  font-size: 16px;
}

.security-list li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--success);
  font-weight: bold;
  font-size: 20px;
}

.security-visual {
  display: flex;
  justify-content: center;
  align-items: center;
}

.security-shield {
  width: 200px;
  height: 200px;
  background: var(--bg-tertiary);
  border: 2px solid var(--accent);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  animation: pulse 3s infinite;
}

.security-shield svg {
  color: var(--accent);
}

@keyframes pulse {
  0%, 100% {
    box-shadow: 0 0 20px rgba(0, 217, 255, 0.3);
  }
  50% {
    box-shadow: 0 0 40px rgba(0, 217, 255, 0.6);
  }
}

.telegram {
  padding: 80px 0;
  background: var(--bg-primary);
}

.telegram-content {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 64px;
  align-items: center;
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 64px;
}

.telegram-icon {
  display: flex;
  align-items: center;
  justify-content: center;
}

.telegram-icon svg {
  filter: drop-shadow(0 8px 24px rgba(0, 217, 255, 0.4));
  animation: float 3s ease-in-out infinite;
}

@keyframes float {
  0%, 100% {
    transform: translateY(0px);
  }
  50% {
    transform: translateY(-10px);
  }
}

.telegram-text h2 {
  font-size: 36px;
  margin-bottom: 20px;
  color: var(--text-primary);
}

.telegram-text > p {
  font-size: 18px;
  color: var(--text-secondary);
  margin-bottom: 28px;
  line-height: 1.8;
}

.telegram-features {
  list-style: none;
  margin-bottom: 32px;
}

.telegram-features li {
  padding: 10px 0;
  padding-left: 32px;
  position: relative;
  color: var(--text-secondary);
  font-size: 16px;
}

.telegram-features li::before {
  content: '▸';
  position: absolute;
  left: 0;
  color: var(--accent);
  font-weight: bold;
  font-size: 20px;
}

.btn-telegram {
  display: inline-flex;
  align-items: center;
  gap: 12px;
}

.btn-telegram svg {
  width: 24px;
  height: 24px;
}

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

.onion-content {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 64px;
  align-items: center;
}

.onion-text h2 {
  font-size: 42px;
  margin-bottom: 20px;
  color: var(--text-primary);
}

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

.onion-address-box {
  background: var(--bg-tertiary);
  border: 2px solid var(--accent);
  border-radius: 12px;
  padding: 24px;
  margin-bottom: 32px;
  display: flex;
  align-items: center;
  gap: 20px;
  box-shadow: 0 4px 20px rgba(0, 217, 255, 0.2);
}

.onion-icon-small {
  flex-shrink: 0;
  color: var(--accent);
}

.onion-address {
  display: flex;
  flex-direction: column;
  gap: 8px;
  flex: 1;
  min-width: 0;
}

.address-label {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-secondary);
  font-weight: 600;
}

.address-value {
  font-size: 14px;
  color: var(--accent);
  background: var(--bg-primary);
  padding: 8px 12px;
  border-radius: 6px;
  font-family: 'Courier New', monospace;
  word-break: break-all;
  border: 1px solid var(--border);
}

.onion-features {
  list-style: none;
  margin-bottom: 32px;
}

.onion-features li {
  padding: 10px 0;
  padding-left: 32px;
  position: relative;
  color: var(--text-secondary);
  font-size: 16px;
}

.onion-features li::before {
  content: '◆';
  position: absolute;
  left: 0;
  color: var(--accent);
  font-weight: bold;
  font-size: 16px;
}

.onion-visual {
  display: flex;
  justify-content: center;
  align-items: center;
}

.onion-icon-large {
  position: relative;
  animation: pulse-rotate 4s ease-in-out infinite;
}

.onion-icon-large svg {
  color: var(--accent);
  filter: drop-shadow(0 8px 24px rgba(0, 217, 255, 0.4));
}

@keyframes pulse-rotate {
  0%, 100% {
    transform: rotate(0deg) scale(1);
  }
  50% {
    transform: rotate(5deg) scale(1.05);
  }
}

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

.access-box {
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 64px;
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
}

.access-box h2 {
  font-size: 42px;
  margin-bottom: 16px;
  color: var(--text-primary);
}

.access-box > p {
  font-size: 20px;
  color: var(--text-secondary);
  margin-bottom: 48px;
}

.access-info {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  margin-bottom: 48px;
}

.info-item {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.info-label {
  color: var(--text-secondary);
  font-size: 14px;
  text-transform: uppercase;
  letter-spacing: 1px;
}

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

.footer {
  background: var(--bg-primary);
  border-top: 1px solid var(--border);
  padding: 48px 0 24px;
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 32px;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 20px;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 2px;
}

.footer-logo svg {
  color: var(--accent);
}

.footer-links {
  display: flex;
  gap: 32px;
}

.footer-links a {
  color: var(--text-secondary);
  text-decoration: none;
  transition: color 0.2s ease;
}

.footer-links a:hover {
  color: var(--accent);
}

.footer-bottom {
  text-align: center;
  padding-top: 24px;
  border-top: 1px solid var(--border);
  color: var(--text-secondary);
  font-size: 14px;
}

@media (max-width: 768px) {
  .header .container {
    flex-direction: column;
    gap: 16px;
  }

  .nav {
    gap: 16px;
  }

  .hero-title {
    font-size: 42px;
  }

  .hero-subtitle {
    font-size: 20px;
  }

  .security-content {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .telegram-content {
    grid-template-columns: 1fr;
    gap: 32px;
    padding: 40px 24px;
    text-align: center;
  }

  .telegram-icon svg {
    width: 60px;
    height: 60px;
  }

  .telegram-text h2 {
    font-size: 28px;
  }

  .onion-content {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .onion-text h2 {
    font-size: 28px;
  }

  .onion-address-box {
    flex-direction: column;
    text-align: center;
    gap: 16px;
  }

  .onion-icon-large svg {
    width: 140px;
    height: 140px;
  }

  .address-value {
    font-size: 12px;
  }

  .access-info {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .access-box {
    padding: 40px 24px;
  }

  .footer-content {
    flex-direction: column;
    gap: 24px;
    text-align: center;
  }

  .footer-links {
    flex-direction: column;
    gap: 16px;
  }
}