:root {
      --bg: #0D1117;
      --surface: #161B22;
      --surface-elevated: #1C2128;
      --fg: #F0F6FC;
      --muted: #8B949E;
      --border: #30363D;
      --border-light: #484F58;

      --accent: #238636;
      --accent-glow: rgba(35, 134, 54, 0.3);
      --accent-secondary: #1F6feb;

      --status-passed: #238636;
      --status-running: #D29922;
      --status-pending: #8B949E;
      --status-risk: #F85149;

      --font-display: 'Inter', -apple-system, system-ui, sans-serif;
      --font-body: 'Inter', -apple-system, system-ui, sans-serif;
      --font-mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace;

      --spacing-xs: 8px;
      --spacing-sm: 16px;
      --spacing-md: 24px;
      --spacing-lg: 32px;
      --spacing-xl: 48px;
      --spacing-2xl: 64px;
      --spacing-3xl: 96px;

      --radius-sm: 6px;
      --radius-md: 12px;
      --radius-lg: 16px;
    }

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

    html {
      scroll-behavior: smooth;
    }

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

    /* Navigation */
    .nav {
      position: fixed;
      top: 0;
      left: 0;
      right: 0;
      z-index: 100;
      background: rgba(13, 17, 23, 0.9);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border);
    }

    .nav-inner {
      max-width: 1400px;
      margin: 0 auto;
      padding: 16px 24px;
      display: flex;
      align-items: center;
      justify-content: space-between;
    }

    .nav-brand {
      font-family: var(--font-display);
      font-weight: 700;
      font-size: 20px;
      color: var(--fg);
      text-decoration: none;
      display: flex;
      align-items: center;
      gap: 12px;
    }

    .nav-brand-code {
      font-family: var(--font-mono);
      color: var(--accent);
    }

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

    .nav-link {
      color: var(--muted);
      text-decoration: none;
      font-size: 14px;
      font-weight: 500;
      transition: color 0.2s;
    }

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

    .nav-cta {
      background: var(--accent);
      color: #fff;
      padding: 10px 20px;
      border-radius: var(--radius-sm);
      text-decoration: none;
      font-size: 14px;
      font-weight: 600;
      transition: all 0.2s;
    }

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

    /* Hero Section */
    .hero {
      min-height: 100vh;
      padding: 120px 24px 80px;
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 64px;
      align-items: center;
      max-width: 1400px;
      margin: 0 auto;
    }

    .hero-content {
      max-width: 580px;
    }

    .hero-tag {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 6px 12px;
      background: rgba(35, 134, 54, 0.15);
      border: 1px solid var(--accent);
      border-radius: 20px;
      font-size: 13px;
      font-weight: 500;
      color: var(--accent);
      margin-bottom: 24px;
      font-family: var(--font-mono);
    }

    .hero-tag::before {
      content: '';
      width: 8px;
      height: 8px;
      background: var(--accent);
      border-radius: 50%;
      animation: pulse 2s infinite;
    }

    @keyframes pulse {
      0%, 100% { opacity: 1; }
      50% { opacity: 0.5; }
    }

    .hero-title {
      font-family: var(--font-display);
      font-size: clamp(36px, 5vw, 56px);
      font-weight: 700;
      line-height: 1.1;
      margin-bottom: 24px;
      letter-spacing: -0.02em;
    }

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

    .hero-subtitle {
      font-size: 20px;
      color: var(--muted);
      margin-bottom: 24px;
      font-weight: 400;
    }

    .hero-description {
      font-size: 16px;
      color: var(--muted);
      line-height: 1.7;
      margin-bottom: 32px;
      max-width: 520px;
    }

    .hero-ctas {
      display: flex;
      gap: 16px;
      flex-wrap: wrap;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 14px 28px;
      border-radius: var(--radius-sm);
      font-size: 15px;
      font-weight: 600;
      text-decoration: none;
      transition: all 0.2s;
      cursor: pointer;
      border: none;
      font-family: var(--font-display);
    }

    .btn-primary {
      background: var(--accent);
      color: #fff;
    }

    .btn-primary:hover {
      background: #2ea043;
      transform: translateY(-1px);
      box-shadow: 0 4px 20px var(--accent-glow);
    }

    .btn-secondary {
      background: transparent;
      color: var(--fg);
      border: 1px solid var(--border-light);
    }

    .btn-secondary:hover {
      border-color: var(--fg);
      background: var(--surface);
    }

    /* Hero Console - Repository Profile */
    .hero-console {
      background: var(--surface);
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      overflow: hidden;
      box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
    }

    .console-header {
      display: flex;
      align-items: center;
      padding: 12px 16px;
      background: var(--surface-elevated);
      border-bottom: 1px solid var(--border);
      gap: 8px;
    }

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

    .console-dot.red { background: #FF5F56; }
    .console-dot.yellow { background: #FFBD2E; }
    .console-dot.green { background: #27CA40; }

    .console-title {
      flex: 1;
      text-align: center;
      font-family: var(--font-mono);
      font-size: 13px;
      color: var(--muted);
    }

    .console-body {
      padding: 24px;
      font-family: var(--font-mono);
      font-size: 13px;
      min-height: 420px;
      display: flex;
      flex-direction: column;
      gap: 16px;
    }

    .console-line {
      display: flex;
      align-items: flex-start;
      gap: 12px;
      opacity: 0;
      transform: translateX(-8px);
      animation: fadeInLeft 0.4s forwards;
    }

    @keyframes fadeInLeft {
      to {
        opacity: 1;
        transform: translateX(0);
      }
    }

    .console-line.delay-1 { animation-delay: 0.2s; }
    .console-line.delay-2 { animation-delay: 0.6s; }
    .console-line.delay-3 { animation-delay: 1s; }
    .console-line.delay-4 { animation-delay: 1.4s; }
    .console-line.delay-5 { animation-delay: 1.8s; }
    .console-line.delay-6 { animation-delay: 2.2s; }
    .console-line.delay-7 { animation-delay: 2.6s; }
    .console-line.delay-8 { animation-delay: 3s; }
    .console-line.delay-9 { animation-delay: 3.4s; }

    .console-prompt {
      color: var(--accent);
      white-space: nowrap;
    }

    .console-text {
      color: var(--fg);
    }

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

    .console-section {
      padding: 16px;
      background: var(--surface-elevated);
      border-radius: var(--radius-sm);
      border: 1px solid var(--border);
      opacity: 0;
      animation: fadeIn 0.6s forwards;
      animation-delay: 4s;
    }

    @keyframes fadeIn {
      to { opacity: 1; }
    }

    .repo-stats {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 16px;
      margin-top: 16px;
    }

    .repo-stat {
      text-align: center;
      padding: 16px;
      background: var(--bg);
      border-radius: var(--radius-sm);
      border: 1px solid var(--border);
    }

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

    .repo-stat-label {
      font-size: 12px;
      color: var(--muted);
      margin-top: 4px;
      text-transform: uppercase;
      letter-spacing: 0.05em;
    }

    .dependency-graph {
      margin-top: 16px;
      padding: 16px;
      background: var(--bg);
      border-radius: var(--radius-sm);
      border: 1px solid var(--border);
    }

    .dependency-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-bottom: 12px;
      font-size: 12px;
      text-transform: uppercase;
      letter-spacing: 0.05em;
      color: var(--muted);
    }

    .dependency-nodes {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
    }

    .dep-node {
      padding: 6px 12px;
      border-radius: 4px;
      font-size: 11px;
      font-family: var(--font-mono);
      border: 1px solid;
    }

    .dep-node.core {
      background: rgba(35, 134, 54, 0.2);
      border-color: var(--accent);
      color: var(--accent);
    }

    .dep-node.risk {
      background: rgba(248, 81, 73, 0.15);
      border-color: var(--status-risk);
      color: var(--status-risk);
    }

    .dep-node.safe {
      background: rgba(139, 148, 158, 0.15);
      border-color: var(--border-light);
      color: var(--muted);
    }

    .status-badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 4px 10px;
      border-radius: 12px;
      font-size: 11px;
      font-weight: 600;
      text-transform: uppercase;
      letter-spacing: 0.05em;
    }

    .status-badge.passed {
      background: rgba(35, 134, 54, 0.2);
      color: var(--status-passed);
    }

    .status-badge.running {
      background: rgba(210, 153, 34, 0.2);
      color: var(--status-running);
    }

    .status-badge.pending {
      background: rgba(139, 148, 158, 0.2);
      color: var(--status-pending);
    }

    /* Section Styles */
    .section {
      padding: var(--spacing-3xl) 24px;
      max-width: 1200px;
      margin: 0 auto;
    }

    .section-label {
      font-family: var(--font-mono);
      font-size: 12px;
      color: var(--accent);
      text-transform: uppercase;
      letter-spacing: 0.1em;
      margin-bottom: 16px;
    }

    .section-title {
      font-family: var(--font-display);
      font-size: clamp(28px, 4vw, 40px);
      font-weight: 700;
      margin-bottom: var(--spacing-lg);
      letter-spacing: -0.02em;
    }

    .section-subtitle {
      font-size: 18px;
      color: var(--muted);
      max-width: 680px;
      margin-bottom: var(--spacing-xl);
    }

    /* Capabilities Grid */
    .capabilities-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .capability-card {
      background: var(--surface);
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      padding: 24px;
      transition: all 0.3s;
    }

    .capability-card:hover {
      border-color: var(--border-light);
      transform: translateY(-4px);
      box-shadow: 0 12px 40px rgba(0, 0, 0, 0.3);
    }

    .capability-icon {
      width: 48px;
      height: 48px;
      background: rgba(35, 134, 54, 0.15);
      border-radius: var(--radius-sm);
      display: flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 16px;
      font-size: 20px;
    }

    .capability-title {
      font-family: var(--font-display);
      font-size: 18px;
      font-weight: 600;
      margin-bottom: 12px;
    }

    .capability-desc {
      font-size: 14px;
      color: var(--muted);
      line-height: 1.6;
    }

    /* Value Props */
    .value-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 24px;
    }

    .value-card {
      background: var(--surface-elevated);
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      padding: 32px;
      display: flex;
      gap: 20px;
    }

    .value-number {
      font-family: var(--font-mono);
      font-size: 48px;
      font-weight: 700;
      color: var(--accent);
      opacity: 0.3;
      line-height: 1;
      min-width: 60px;
    }

    .value-content h3 {
      font-family: var(--font-display);
      font-size: 18px;
      font-weight: 600;
      margin-bottom: 8px;
    }

    .value-content p {
      font-size: 14px;
      color: var(--muted);
      line-height: 1.6;
    }

    /* Architecture Section */
    .architecture-section {
      background: var(--surface);
      border-top: 1px solid var(--border);
      border-bottom: 1px solid var(--border);
    }

    .architecture-diagram {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
      margin-top: var(--spacing-xl);
    }

    .arch-column {
      display: flex;
      flex-direction: column;
      gap: 16px;
    }

    .arch-column-title {
      font-family: var(--font-mono);
      font-size: 12px;
      color: var(--muted);
      text-transform: uppercase;
      letter-spacing: 0.05em;
      padding: 12px;
      background: var(--surface-elevated);
      border-radius: var(--radius-sm);
      text-align: center;
      border: 1px dashed var(--border);
    }

    .arch-card {
      background: var(--bg);
      border: 1px solid var(--border);
      border-radius: var(--radius-sm);
      padding: 16px;
      transition: all 0.3s;
    }

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

    .arch-card.center {
      background: rgba(35, 134, 54, 0.1);
      border-color: var(--accent);
    }

    .arch-card-title {
      font-family: var(--font-display);
      font-size: 14px;
      font-weight: 600;
      margin-bottom: 8px;
    }

    .arch-card-desc {
      font-size: 12px;
      color: var(--muted);
    }

    .arch-connector {
      display: flex;
      justify-content: center;
      padding: 8px 0;
      color: var(--border-light);
      font-size: 20px;
    }

    /* CTA Section */
    .cta-section {
      background: linear-gradient(180deg, var(--bg) 0%, rgba(35, 134, 54, 0.1) 100%);
      text-align: center;
    }

    .cta-box {
      max-width: 580px;
      margin: 0 auto;
    }

    .cta-form {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
      margin-top: 32px;
    }

    .form-field {
      text-align: left;
    }

    .form-field.full {
      grid-column: 1 / -1;
    }

    .form-label {
      display: block;
      font-size: 13px;
      font-weight: 500;
      margin-bottom: 8px;
      color: var(--muted);
    }

    .form-input {
      width: 100%;
      padding: 12px 16px;
      background: var(--surface);
      border: 1px solid var(--border);
      border-radius: var(--radius-sm);
      color: var(--fg);
      font-family: var(--font-body);
      font-size: 14px;
      transition: all 0.2s;
    }

    .form-input:focus {
      outline: none;
      border-color: var(--accent);
      box-shadow: 0 0 0 3px var(--accent-glow);
    }

    .form-input::placeholder {
      color: var(--muted);
    }

    .form-submit {
      grid-column: 1 / -1;
      justify-content: center;
    }

    /* Footer */
    .footer {
      padding: 48px 24px;
      border-top: 1px solid var(--border);
      text-align: center;
      color: var(--muted);
      font-size: 14px;
    }

    .footer-links {
      display: flex;
      justify-content: center;
      gap: 32px;
      margin-bottom: 24px;
    }

    .footer-link {
      color: var(--muted);
      text-decoration: none;
      transition: color 0.2s;
    }

    .footer-link:hover {
      color: var(--fg);
    }

    /* Responsive */
    @media (max-width: 1024px) {
      .hero {
        grid-template-columns: 1fr;
        padding-top: 100px;
      }

      .hero-console {
        order: -1;
      }

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

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

      .architecture-diagram {
        grid-template-columns: 1fr;
      }

      .arch-connector {
        transform: rotate(90deg);
      }
    }

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

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

      .cta-form {
        grid-template-columns: 1fr;
      }

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

    /* Animation States */
    .animate-running .status-badge.running::before {
      content: '';
      display: inline-block;
      width: 8px;
      height: 8px;
      background: currentColor;
      border-radius: 50%;
      margin-right: 4px;
      animation: pulse 1s infinite;
    }