:root {
      --bg-dark: #0d1117;
      --bg-surface: #161b22;
      --bg-card: #21262d;
      --fg-primary: #f0f6fc;
      --fg-secondary: #8b949e;
      --fg-muted: #6e7681;
      --border: #30363d;
      --accent-green: #3fb950;
      --accent-blue: #58a6ff;
      --accent-yellow: #d29922;
      --accent-red: #f85149;
      --font-mono: 'SF Mono', 'JetBrains Mono', 'IBM Plex Mono', ui-monospace, Menlo, monospace;
      --font-sans: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Segoe UI', system-ui, sans-serif;
    }

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

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

    /* Navigation */
    nav {
      position: fixed;
      top: 0;
      left: 0;
      right: 0;
      z-index: 1000;
      background: rgba(13, 17, 23, 0.95);
      backdrop-filter: blur(10px);
      border-bottom: 1px solid var(--border);
      padding: 16px 24px;
    }

    .nav-container {
      max-width: 1400px;
      margin: 0 auto;
      display: flex;
      align-items: center;
      justify-content: space-between;
    }

    .nav-brand {
      font-family: var(--font-mono);
      font-size: 20px;
      font-weight: 700;
      color: var(--fg-primary);
      text-decoration: none;
      letter-spacing: -0.02em;
    }

    .nav-brand span { color: var(--accent-green); }

    .nav-links {
      display: flex;
      gap: 32px;
      align-items: center;
    }

    .nav-links a {
      color: var(--fg-secondary);
      text-decoration: none;
      font-size: 14px;
      font-weight: 500;
      transition: color 0.2s;
    }

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

    .nav-cta {
      background: var(--accent-green);
      color: var(--bg-dark) !important;
      padding: 8px 20px;
      border-radius: 6px;
      font-weight: 600 !important;
    }

    .nav-cta:hover {
      background: #2ea043;
    }

    /* Hero Section */
    .hero {
      min-height: 70vh;
      display: flex;
      align-items: center;
      justify-content: center;
      padding: 120px 24px 80px;
      text-align: center;
    }

    .hero-content {
      max-width: 900px;
    }

    .hero-badge {
      display: inline-block;
      padding: 6px 16px;
      background: rgba(63, 185, 80, 0.15);
      border: 1px solid rgba(63, 185, 80, 0.3);
      border-radius: 20px;
      font-family: var(--font-mono);
      font-size: 13px;
      color: var(--accent-green);
      margin-bottom: 24px;
    }

    .hero h1 {
      font-size: clamp(36px, 6vw, 64px);
      font-weight: 700;
      letter-spacing: -0.03em;
      margin-bottom: 24px;
      line-height: 1.1;
    }

    .hero h1 .accent {
      background: linear-gradient(135deg, var(--accent-green), var(--accent-blue));
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
    }

    .hero-subtitle {
      font-size: clamp(16px, 2vw, 20px);
      color: var(--fg-secondary);
      margin-bottom: 40px;
      max-width: 700px;
      margin-left: auto;
      margin-right: auto;
    }

    /* Stats Grid */
    .stats-section {
      padding: 80px 24px;
      background: linear-gradient(180deg, var(--bg-dark) 0%, var(--bg-surface) 100%);
    }

    .stats-grid {
      max-width: 1200px;
      margin: 0 auto;
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }

    .stat-card {
      background: var(--bg-card);
      border: 1px solid var(--border);
      border-radius: 12px;
      padding: 32px 24px;
      text-align: center;
      transition: transform 0.3s, border-color 0.3s;
    }

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

    .stat-number {
      font-family: var(--font-mono);
      font-size: clamp(36px, 5vw, 56px);
      font-weight: 700;
      color: var(--accent-green);
      line-height: 1;
      margin-bottom: 8px;
    }

    .stat-label {
      font-size: 14px;
      color: var(--fg-secondary);
      font-weight: 500;
    }

    /* Content Section */
    .content-section {
      padding: 80px 24px;
    }

    .section-container {
      max-width: 1000px;
      margin: 0 auto;
    }

    .section-header {
      text-align: center;
      margin-bottom: 60px;
    }

    .section-header h2 {
      font-size: clamp(28px, 4vw, 42px);
      font-weight: 700;
      letter-spacing: -0.02em;
      margin-bottom: 16px;
    }

    .section-header p {
      font-size: 18px;
      color: var(--fg-secondary);
      max-width: 600px;
      margin: 0 auto;
    }

    /* Partnership Banner */
    .partnership-banner {
      background: linear-gradient(135deg, rgba(79, 139, 255, 0.1), rgba(63, 185, 80, 0.1));
      border: 1px solid rgba(79, 139, 255, 0.2);
      border-radius: 16px;
      padding: 48px;
      text-align: center;
      margin-bottom: 80px;
    }

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

    .partnership-banner h3 {
      font-size: 24px;
      font-weight: 600;
      margin-bottom: 12px;
    }

    .partnership-banner p {
      color: var(--fg-secondary);
      font-size: 16px;
    }

    /* Certifications */
    .certs-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
    }

    .cert-card {
      background: var(--bg-card);
      border: 1px solid var(--border);
      border-radius: 12px;
      padding: 24px;
      display: flex;
      align-items: center;
      gap: 16px;
      transition: border-color 0.3s;
    }

    .cert-card:hover {
      border-color: var(--accent-green);
    }

    .cert-icon {
      width: 48px;
      height: 48px;
      background: rgba(63, 185, 80, 0.1);
      border-radius: 10px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 24px;
      flex-shrink: 0;
    }

    .cert-info h4 {
      font-size: 16px;
      font-weight: 600;
      margin-bottom: 4px;
    }

    .cert-info p {
      font-size: 13px;
      color: var(--fg-secondary);
    }

    .service-network {
      border: 1px solid var(--border);
      border-radius: 16px;
      background:
        radial-gradient(circle at 18% 30%, rgba(63, 185, 80, 0.16), transparent 24%),
        radial-gradient(circle at 72% 28%, rgba(79, 139, 255, 0.14), transparent 26%),
        var(--bg-card);
      padding: 36px;
      overflow: hidden;
      position: relative;
    }

    .service-network::before {
      content: "";
      position: absolute;
      inset: 30px;
      border: 1px dashed rgba(148, 163, 184, 0.2);
      border-radius: 50%;
      transform: rotate(-8deg);
      pointer-events: none;
    }

    .service-network__header {
      position: relative;
      z-index: 1;
      display: grid;
      grid-template-columns: minmax(0, 1fr) minmax(240px, 320px);
      gap: 28px;
      align-items: end;
      margin-bottom: 28px;
    }

    .service-network__title {
      font-size: clamp(24px, 3vw, 34px);
      font-weight: 700;
      margin-bottom: 10px;
    }

    .service-network__desc,
    .service-network__note {
      color: var(--fg-secondary);
      font-size: 15px;
      line-height: 1.75;
    }

    .service-network__note {
      border: 1px solid rgba(148, 163, 184, 0.18);
      border-radius: 12px;
      background: rgba(10, 14, 26, 0.56);
      padding: 16px;
    }

    .network-nodes {
      position: relative;
      z-index: 1;
      display: grid;
      grid-template-columns: repeat(6, minmax(0, 1fr));
      gap: 12px;
    }

    .network-node {
      min-height: 118px;
      border: 1px solid rgba(148, 163, 184, 0.18);
      border-radius: 12px;
      background: rgba(10, 14, 26, 0.68);
      padding: 18px;
    }

    .network-node::before {
      content: "";
      display: block;
      width: 10px;
      height: 10px;
      border-radius: 999px;
      background: var(--accent-green);
      box-shadow: 0 0 18px rgba(63, 185, 80, 0.6);
      margin-bottom: 16px;
    }

    .network-node strong {
      display: block;
      font-size: 15px;
      margin-bottom: 6px;
    }

    .network-node span {
      color: var(--fg-secondary);
      font-size: 12px;
      line-height: 1.5;
    }

    /* Timeline */
    .timeline-section {
      padding: 80px 24px;
      background: var(--bg-surface);
    }

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

    .timeline-item {
      display: flex;
      gap: 24px;
      padding-bottom: 40px;
      position: relative;
    }

    .timeline-item:last-child {
      padding-bottom: 0;
    }

    .timeline-item:not(:last-child)::after {
      content: '';
      position: absolute;
      left: 20px;
      top: 50px;
      bottom: 0;
      width: 2px;
      background: linear-gradient(180deg, var(--accent-green), transparent);
    }

    .timeline-year {
      font-family: var(--font-mono);
      font-size: 14px;
      font-weight: 700;
      color: var(--accent-green);
      background: rgba(63, 185, 80, 0.15);
      padding: 4px 12px;
      border-radius: 20px;
      height: fit-content;
      white-space: nowrap;
    }

    .timeline-content h4 {
      font-size: 18px;
      font-weight: 600;
      margin-bottom: 8px;
    }

    .timeline-content p {
      color: var(--fg-secondary);
      font-size: 15px;
    }

    /* CTA Section */
    .cta-section {
      padding: 100px 24px;
      text-align: center;
      background: linear-gradient(180deg, var(--bg-surface) 0%, var(--bg-dark) 100%);
    }

    .cta-section h2 {
      font-size: clamp(28px, 4vw, 42px);
      font-weight: 700;
      margin-bottom: 24px;
    }

    .cta-section p {
      font-size: 18px;
      color: var(--fg-secondary);
      margin-bottom: 40px;
      max-width: 600px;
      margin-left: auto;
      margin-right: auto;
    }

    .cta-buttons {
      display: flex;
      gap: 16px;
      justify-content: center;
      flex-wrap: wrap;
    }

    .btn {
      padding: 14px 32px;
      border-radius: 8px;
      font-size: 15px;
      font-weight: 600;
      text-decoration: none;
      transition: all 0.3s;
    }

    .btn-primary {
      background: var(--accent-green);
      color: var(--bg-dark);
    }

    .btn-primary:hover {
      background: #2ea043;
      transform: translateY(-2px);
    }

    .btn-secondary {
      background: var(--bg-card);
      color: var(--fg-primary);
      border: 1px solid var(--border);
    }

    .btn-secondary:hover {
      border-color: var(--fg-primary);
      transform: translateY(-2px);
    }

    /* Footer */
    footer {
      border-top: 1px solid var(--border);
      padding: 40px 24px;
      text-align: center;
    }

    footer p {
      color: var(--fg-muted);
      font-size: 14px;
    }

    /* Mobile Menu */
    .mobile-menu-btn {
      display: none;
      background: none;
      border: none;
      color: var(--fg-primary);
      font-size: 24px;
      cursor: pointer;
    }

    /* Responsive */
    @media (max-width: 1024px) {
      .stats-grid {
        grid-template-columns: repeat(2, 1fr);
      }

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

      .service-network__header {
        grid-template-columns: 1fr;
      }

      .network-nodes {
        grid-template-columns: repeat(2, 1fr);
      }
    }

    @media (max-width: 768px) {
      .nav-links {
        display: none;
      }

      .mobile-menu-btn {
        display: block;
      }

      .stats-grid {
        grid-template-columns: 1fr 1fr;
        gap: 16px;
      }

      .stat-card {
        padding: 24px 16px;
      }

      .partnership-banner {
        padding: 32px 24px;
      }

      .service-network {
        padding: 24px;
      }

      .network-nodes {
        grid-template-columns: 1fr;
      }

      .timeline-item {
        flex-direction: column;
        gap: 12px;
      }

      .timeline-item:not(:last-child)::after {
        left: 12px;
      }
    }

    @media (max-width: 480px) {
      .stats-grid {
        grid-template-columns: 1fr;
      }

      .stat-card {
        display: flex;
        align-items: center;
        justify-content: space-between;
        text-align: left;
        padding: 20px 24px;
      }

      .stat-number {
        margin-bottom: 0;
      }
    }