:root {
      --primary-blue: #0066FF;
      --primary-cyan: #00D4FF;
      --primary-purple: #7B61FF;
      --dark-bg: #0A0E27;
      --dark-surface: #141B3D;
      --text-primary: #FFFFFF;
      --text-secondary: #B8C5E6;
      --accent-glow: rgba(0, 212, 255, 0.3);
    }

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

    html {
      scroll-behavior: smooth;
    }

    body {
      font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
      line-height: 1.6;
      color: var(--text-primary);
      background: var(--dark-bg);
      overflow-x: hidden;
      position: relative;
    }

    /* Animated gradient background */
    body::before {
      content: '';
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      background: 
        radial-gradient(circle at 20% 50%, rgba(0, 102, 255, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(123, 97, 255, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 40% 20%, rgba(0, 212, 255, 0.1) 0%, transparent 50%);
      animation: gradientShift 20s ease infinite;
      z-index: -1;
      pointer-events: none;
    }

    @keyframes gradientShift {
      0%, 100% { opacity: 1; transform: scale(1); }
      50% { opacity: 0.8; transform: scale(1.1); }
    }

    /* Noise texture overlay */
    body::after {
      content: '';
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 400 400' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)' opacity='0.03'/%3E%3C/svg%3E");
      z-index: -1;
      pointer-events: none;
    }

    .container {
      max-width: 1400px;
      margin: 0 auto;
      padding: 0 24px;
      position: relative;
      z-index: 1;
    }

    /* Hero Section */
    .hero {
      min-height: 100vh;
      display: flex;
      flex-direction: column;
      justify-content: center;
      align-items: center;
      text-align: center;
      padding: 120px 0 80px;
      position: relative;
    }

    .hero-content {
      max-width: 900px;
      animation: fadeInUp 1s ease-out;
    }

    @keyframes fadeInUp {
      from {
        opacity: 0;
        transform: translateY(30px);
      }
      to {
        opacity: 1;
        transform: translateY(0);
      }
    }

    .logo-wrapper {
      margin-bottom: 40px;
      animation: float 6s ease-in-out infinite;
    }

    @keyframes float {
      0%, 100% { transform: translateY(0px); }
      50% { transform: translateY(-20px); }
    }

    .logo {
      width: 140px;
      height: 140px;
      border-radius: 32px;
      box-shadow: 
        0 20px 60px rgba(0, 102, 255, 0.4),
        0 0 80px rgba(0, 212, 255, 0.2);
      transition: transform 0.3s ease;
    }

    .logo:hover {
      transform: scale(1.05) rotate(5deg);
    }

    h1 {
      font-family: 'Space Grotesk', sans-serif;
      font-size: clamp(2.5rem, 8vw, 5rem);
      font-weight: 700;
      background: linear-gradient(135deg, var(--text-primary) 0%, var(--primary-cyan) 50%, var(--primary-blue) 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
      margin-bottom: 24px;
      letter-spacing: -0.03em;
      line-height: 1.1;
    }

    .subtitle {
      font-size: clamp(1.1rem, 2.5vw, 1.5rem);
      color: var(--text-secondary);
      margin-bottom: 48px;
      font-weight: 400;
      max-width: 700px;
      margin-left: auto;
      margin-right: auto;
    }

    .cta-button {
      display: inline-flex;
      align-items: center;
      gap: 12px;
      background: linear-gradient(135deg, var(--primary-blue) 0%, var(--primary-purple) 100%);
      color: white;
      padding: 18px 40px;
      text-decoration: none;
      border-radius: 16px;
      font-weight: 600;
      font-size: 1.1rem;
      transition: all 0.3s ease;
      box-shadow: 
        0 10px 30px rgba(0, 102, 255, 0.4),
        0 0 40px rgba(0, 102, 255, 0.2);
      position: relative;
      overflow: hidden;
    }

    .cta-button span,
    .cta-button svg {
      position: relative;
      z-index: 1;
    }

    .cta-button::before {
      content: '';
      position: absolute;
      top: 0;
      left: -100%;
      width: 100%;
      height: 100%;
      background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.15), transparent);
      transition: left 0.5s ease;
      z-index: 0;
      pointer-events: none;
    }

    .cta-button:hover::before {
      left: 100%;
    }

    .cta-button:hover {
      transform: translateY(-2px);
      box-shadow: 
        0 15px 40px rgba(0, 102, 255, 0.5),
        0 0 60px rgba(0, 212, 255, 0.3);
      color: white;
      background: linear-gradient(135deg, var(--primary-blue) 0%, var(--primary-purple) 100%);
    }

    .cta-button:hover span,
    .cta-button:hover svg {
      text-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
      filter: drop-shadow(0 1px 2px rgba(0, 0, 0, 0.3));
    }

    .cta-button:active {
      transform: translateY(0);
    }

    /* Screenshots Grid */
    .screenshots-section {
      padding: 100px 0;
      position: relative;
    }

    .screenshots-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      margin-top: 60px;
      perspective: 1000px;
    }

    .screenshot-wrapper {
      position: relative;
      border-radius: 24px;
      overflow: hidden;
      transform-style: preserve-3d;
      transition: transform 0.4s ease;
      animation: fadeInUp 1s ease-out backwards;
    }

    .screenshot-wrapper:nth-child(1) { animation-delay: 0.1s; }
    .screenshot-wrapper:nth-child(2) { animation-delay: 0.2s; }
    .screenshot-wrapper:nth-child(3) { animation-delay: 0.3s; }
    .screenshot-wrapper:nth-child(4) { animation-delay: 0.4s; }

    .screenshot-wrapper:hover {
      transform: translateY(-12px) rotateX(5deg);
    }

    .screenshot {
      width: 100%;
      height: auto;
      display: block;
      border-radius: 24px;
      box-shadow: 
        0 20px 60px rgba(0, 0, 0, 0.4),
        0 0 40px rgba(0, 102, 255, 0.2);
      transition: all 0.4s ease;
    }

    .screenshot-wrapper:hover .screenshot {
      box-shadow: 
        0 30px 80px rgba(0, 0, 0, 0.5),
        0 0 60px rgba(0, 212, 255, 0.4);
    }

    /* Content Sections */
    .content-section {
      padding: 100px 0;
      position: relative;
    }

    .section-header {
      text-align: center;
      margin-bottom: 80px;
    }

    h2 {
      font-family: 'Space Grotesk', sans-serif;
      font-size: clamp(2rem, 5vw, 3.5rem);
      font-weight: 700;
      color: var(--text-primary);
      margin-bottom: 16px;
      letter-spacing: -0.02em;
    }

    .section-subtitle {
      font-size: 1.2rem;
      color: var(--text-secondary);
      max-width: 600px;
      margin: 0 auto;
    }

    .intro-text {
      font-size: 1.2rem;
      color: var(--text-secondary);
      line-height: 1.8;
      max-width: 800px;
      margin: 0 auto 80px;
      text-align: center;
    }

    .intro-text strong {
      color: var(--primary-cyan);
      font-weight: 600;
    }

    /* Features Grid */
    .features-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
      gap: 32px;
      margin-top: 60px;
    }

    .feature-card {
      background: linear-gradient(135deg, var(--dark-surface) 0%, rgba(20, 27, 61, 0.5) 100%);
      border: 1px solid rgba(0, 212, 255, 0.1);
      border-radius: 24px;
      padding: 40px;
      transition: all 0.4s ease;
      position: relative;
      overflow: hidden;
      backdrop-filter: blur(10px);
    }

    .feature-card::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      background: linear-gradient(135deg, rgba(0, 102, 255, 0.1) 0%, rgba(123, 97, 255, 0.1) 100%);
      opacity: 0;
      transition: opacity 0.4s ease;
    }

    .feature-card:hover::before {
      opacity: 1;
    }

    .feature-card:hover {
      transform: translateY(-8px);
      border-color: rgba(0, 212, 255, 0.3);
      box-shadow: 
        0 20px 60px rgba(0, 102, 255, 0.2),
        0 0 40px rgba(0, 212, 255, 0.1);
    }

    .feature-number {
      font-family: 'Space Grotesk', sans-serif;
      font-size: 3rem;
      font-weight: 700;
      background: linear-gradient(135deg, var(--primary-blue), var(--primary-cyan));
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
      margin-bottom: 16px;
      opacity: 0.3;
    }

    .feature-card h3 {
      font-family: 'Space Grotesk', sans-serif;
      font-size: 1.5rem;
      font-weight: 600;
      color: var(--text-primary);
      margin-bottom: 16px;
      position: relative;
      z-index: 1;
    }

    .feature-card p {
      color: var(--text-secondary);
      line-height: 1.7;
      position: relative;
      z-index: 1;
    }

    /* Key facts (by the numbers) for GEO */
    .key-facts-list {
      list-style: none;
      max-width: 600px;
      margin: 0 auto;
      padding: 0;
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
      gap: 20px 32px;
    }
    .key-facts-list li {
      color: var(--text-secondary);
      font-size: 1.1rem;
      padding: 16px 20px;
      background: rgba(20, 27, 61, 0.5);
      border-radius: 16px;
      border: 1px solid rgba(0, 212, 255, 0.1);
    }
    .key-facts-list strong {
      color: var(--primary-cyan);
      display: block;
      margin-bottom: 4px;
    }

    /* Summary / TL;DR for GEO */
    .summary-tldr { padding-top: 60px; }
    .tldr-box {
      max-width: 800px;
      margin: 0 auto;
      padding: 28px 36px;
      background: linear-gradient(135deg, rgba(0, 102, 255, 0.08) 0%, rgba(123, 97, 255, 0.08) 100%);
      border: 1px solid rgba(0, 212, 255, 0.2);
      border-radius: 20px;
    }
    .tldr-label {
      font-size: 0.85rem;
      font-weight: 600;
      color: var(--primary-cyan);
      text-transform: uppercase;
      letter-spacing: 0.06em;
      margin-bottom: 12px;
    }
    .tldr-text {
      font-size: 1.15rem;
      color: var(--text-secondary);
      line-height: 1.75;
      margin: 0;
    }

    /* Comparison table for GEO */
    .comparison-table-wrapper {
      max-width: 900px;
      margin: 0 auto;
      overflow-x: auto;
    }
    .comparison-table {
      width: 100%;
      border-collapse: collapse;
      font-size: 0.95rem;
    }
    .comparison-table th,
    .comparison-table td {
      padding: 14px 16px;
      text-align: left;
      border: 1px solid rgba(0, 212, 255, 0.15);
    }
    .comparison-table th {
      background: rgba(20, 27, 61, 0.8);
      color: var(--text-primary);
      font-weight: 600;
    }
    .comparison-table td {
      color: var(--text-secondary);
      background: rgba(20, 27, 61, 0.4);
    }
    .comparison-table tbody tr:nth-child(even) td {
      background: rgba(20, 27, 61, 0.5);
    }
    .comparison-table th:first-child,
    .comparison-table td:first-child {
      color: var(--primary-cyan);
      font-weight: 500;
    }

    /* FAQ section for GEO */
    .faq-section .section-subtitle { margin-bottom: 0; }
    .faq-list {
      max-width: 800px;
      margin: 0 auto;
      padding: 0;
      list-style: none;
    }
    .faq-item {
      margin-bottom: 32px;
      padding-bottom: 32px;
      border-bottom: 1px solid rgba(0, 212, 255, 0.1);
    }
    .faq-item:last-child { margin-bottom: 0; padding-bottom: 0; border-bottom: 0; }
    .faq-item dt {
      font-size: 1.1rem;
      color: var(--text-primary);
      margin-bottom: 12px;
    }
    .faq-item dd {
      color: var(--text-secondary);
      line-height: 1.7;
      margin: 0;
    }
    footer .last-updated {
      margin-top: 16px;
      font-size: 0.9rem;
      opacity: 0.85;
    }

    /* How to Use Section */
    .how-to-section {
      background: linear-gradient(135deg, rgba(0, 102, 255, 0.05) 0%, rgba(123, 97, 255, 0.05) 100%);
      border-radius: 48px;
      padding: 80px 60px;
      margin: 100px 0;
      border: 1px solid rgba(0, 212, 255, 0.1);
    }

    .how-to-content {
      max-width: 800px;
      margin: 0 auto;
      text-align: center;
    }

    .how-to-content p {
      font-size: 1.2rem;
      color: var(--text-secondary);
      line-height: 1.8;
    }

    /* Download Section */
    .download-section {
      text-align: center;
      padding: 100px 0;
    }

    .download-content {
      max-width: 700px;
      margin: 0 auto;
    }

    .download-content p {
      font-size: 1.2rem;
      color: var(--text-secondary);
      margin-bottom: 40px;
      line-height: 1.8;
    }

    .download-content a {
      color: var(--primary-cyan);
      text-decoration: none;
      border-bottom: 2px solid var(--primary-cyan);
      transition: all 0.3s ease;
    }

    .download-content a:hover {
      color: var(--text-primary);
      border-bottom-color: var(--primary-blue);
    }

    /* Footer */
    footer {
      text-align: center;
      padding: 80px 0 40px;
      color: var(--text-secondary);
      border-top: 1px solid rgba(0, 212, 255, 0.1);
      margin-top: 100px;
    }

    footer a {
      color: var(--text-secondary);
      text-decoration: none;
      transition: color 0.3s ease;
    }

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

    footer p {
      margin-bottom: 12px;
    }

    /* Responsive Design */
    @media (max-width: 1024px) {
      .screenshots-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
      }

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

    @media (max-width: 768px) {
      .hero {
        padding: 80px 0 60px;
      }

      .logo {
        width: 100px;
        height: 100px;
      }

      .screenshots-section,
      .content-section {
        padding: 60px 0;
      }

      .section-header {
        margin-bottom: 50px;
      }

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

      .how-to-section {
        padding: 50px 30px;
        border-radius: 32px;
      }

      .feature-card {
        padding: 30px;
      }
    }

    @media (max-width: 480px) {
      .container {
        padding: 0 16px;
      }

      .cta-button {
        padding: 16px 32px;
        font-size: 1rem;
      }
    }

    /* Scroll animations */
    @media (prefers-reduced-motion: no-preference) {
      .fade-in {
        opacity: 0;
        transform: translateY(30px);
        transition: opacity 0.6s ease, transform 0.6s ease;
      }

      .fade-in.visible {
        opacity: 1;
        transform: translateY(0);
      }
    }

    @media (prefers-reduced-motion: reduce) {
      * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
      }
    }