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

    html {
      scroll-behavior: smooth;
      scroll-padding-top: 80px;
    }

    body {
      font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', sans-serif;
      line-height: 1.6;
      color: #1a1a1a;
    }

    /* Header Styles */
    header {
      display: flex;
      justify-content: center;
      align-items: center;
      padding: 1rem 3rem;
      background: transparent;
      position: fixed;
      top: 0;
      left: 0;
      right: 0;
      z-index: 1000;
      transition: background-color 0.3s ease, box-shadow 0.3s ease;
      gap: 2rem;
    }

    header.scrolled {
      background: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(10px);
      box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    }

    .logo {
      position: absolute;
      left: 3rem;
    }

    .logo {
      display: flex;
      align-items: center;
      gap: 0.5rem;
      font-size: 1.25rem;
      font-weight: 700;
      color: #1a1a1a;
      text-decoration: none;
      white-space: nowrap;
    }

    .logo-icon {
      width: 32px;
      height: 32px;
      background: linear-gradient(135deg, #8b5cf6 0%, #a855f7 100%);
      border-radius: 8px;
      display: flex;
      align-items: center;
      justify-content: center;
      color: white;
      font-weight: bold;
      font-size: 1.2rem;
    }

    nav {
      display: flex;
      align-items: center;
      justify-content: center;
    }

    .nav-links {
      display: flex;
      gap: 2rem;
      list-style: none;
      align-items: center;
      margin: 0;
      padding: 0;
    }

    .nav-links a {
      color: #1a1a1a;
      text-decoration: none;
      font-weight: 500;
      transition: color 0.3s ease;
      font-size: 0.95rem;
    }

    .nav-links a:hover {
      color: #8b5cf6;
    }

    header.scrolled .nav-links a {
      color: #4a5568;
    }

    .nav-links .dropdown {
      position: relative;
      cursor: pointer;
    }

    .nav-links .dropdown::after {
      content: '▼';
      font-size: 0.7rem;
      margin-left: 0.3rem;
    }

    .cta-button {
      background: linear-gradient(135deg, #8b5cf6 0%, #a855f7 100%);
      color: white;
      border: none;
      padding: 0.75rem 1.5rem;
      border-radius: 8px;
      font-weight: 600;
      cursor: pointer;
      font-size: 0.95rem;
      transition: transform 0.2s ease, box-shadow 0.2s ease;
      text-decoration: none;
      display: inline-flex;
      align-items: center;
      gap: 0.5rem;
    }

    .cta-button:hover {
      transform: translateY(-2px);
      box-shadow: 0 4px 12px rgba(139, 92, 246, 0.3);
    }

    .cta-button::after {
      content: '→';
      font-size: 1.2rem;
    }

    /* Theme Toggle */
    .theme-toggle {
      position: absolute;
      right: 3rem;
      background: rgba(139, 92, 246, 0.1);
      border: 1px solid rgba(139, 92, 246, 0.2);
      width: 40px;
      height: 40px;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      cursor: pointer;
      transition: all 0.3s ease;
      color: #8b5cf6;
    }

    .theme-toggle:hover {
      background: rgba(139, 92, 246, 0.2);
      border-color: rgba(139, 92, 246, 0.3);
      transform: rotate(180deg);
    }

    .theme-icon {
      transition: opacity 0.3s ease;
    }

    .sun-icon {
      display: none;
      position: absolute;
    }

    .moon-icon {
      display: block;
      position: absolute;
    }

    body:not(.dark-mode) .sun-icon {
      display: block;
    }

    body:not(.dark-mode) .moon-icon {
      display: none;
    }

    /* Dark Mode Styles */
    body.dark-mode {
      background: #0f0f0f;
      color: #e5e7eb;
    }

    body.dark-mode header.scrolled {
      background: rgba(15, 15, 15, 0.95);
    }

    body.dark-mode .logo,
    body.dark-mode .nav-links a {
      color: #e5e7eb;
    }

    body.dark-mode header.scrolled .nav-links a {
      color: #9ca3af;
    }

    body.dark-mode .hero {
      background: linear-gradient(180deg, #0f0f0f 0%, #1a0f2e 30%, #2d1b4e 60%, #3d2058 100%);
    }

    body.dark-mode .light-section {
      background: #1a1a1a;
    }

    body.dark-mode .section-header h2,
    body.dark-mode .feature-card h3 {
      color: #e5e7eb;
      background: linear-gradient(135deg, #e5e7eb 0%, #9ca3af 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
    }

    body.dark-mode .section-header p,
    body.dark-mode .feature-card p {
      color: #9ca3af;
    }

    body.dark-mode .feature-card {
      background: linear-gradient(135deg, #1a1a1a 0%, #2d2d2d 100%);
      border-color: rgba(139, 92, 246, 0.2);
    }

    body.dark-mode #how-it-works {
      background: linear-gradient(135deg, #1a1a1a 0%, #1a0f2e 50%, #2d1b4e 100%) !important;
    }

    body.dark-mode .faq-section {
      background: #0f0f0f;
    }

    body.dark-mode .faq-question {
      color: #e5e7eb;
      border-bottom-color: #2d2d2d;
    }

    body.dark-mode .faq-item {
      border-bottom-color: #2d2d2d;
    }

    body.dark-mode .faq-answer p {
      color: #9ca3af;
    }

    body.dark-mode .hero-subtitle {
      color: #d1d5db;
    }

    body.dark-mode .hero h1 {
      color: #f9fafb;
    }

    body.dark-mode .section-label,
    body.dark-mode .section-header p[style*="color: #8b5cf6"] {
      color: #a855f7 !important;
    }

    body.dark-mode footer {
      background: #0a0a0a;
      color: #6b7280;
    }

    body.dark-mode .image-showcase {
      background: #0f0f0f;
    }

    body.dark-mode .showcase-image {
      box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
      background: #1a1a1a;
    }

    body.dark-mode .showcase-image:hover {
      box-shadow: 0 30px 80px rgba(139, 92, 246, 0.35);
    }

    body.dark-mode .showcase-caption h3 {
      color: #e5e7eb;
      background: linear-gradient(135deg, #e5e7eb 0%, #9ca3af 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
    }

    body.dark-mode .showcase-caption p {
      color: #9ca3af;
    }

    /* Hero Section with Gradient */
    .hero {
      background: linear-gradient(180deg, #ffffff 0%, #f3e8ff 30%, #e9d5ff 60%, #fce7f3 100%);
      padding: 8rem 3rem 8rem;
      text-align: center;
    }

    .hero-content {
      max-width: 1200px;
      margin: 0 auto;
    }

    .hero h1 {
      font-size: 3.5rem;
      font-weight: 800;
      line-height: 1.2;
      margin-bottom: 1.5rem;
      color: #1a1a1a;
    }

    .hero h1 .gradient-text {
      background: linear-gradient(135deg, #8b5cf6 0%, #d946ef 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
      display: block;
    }

    .hero-subtitle {
      font-size: 1.15rem;
      color: #4a5568;
      max-width: 800px;
      margin: 0 auto 2.5rem;
      line-height: 1.7;
    }

    .hero-cta {
      margin-bottom: 3rem;
    }

    .hero-preview {
      max-width: 900px;
      margin: 0 auto;
      background: white;
      border-radius: 12px;
      box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
      overflow: hidden;
      border: 1px solid rgba(0, 0, 0, 0.05);
    }

    .preview-image {
      width: 100%;
      height: auto;
      display: block;
    }

    /* Light Background Section */
    .light-section {
      background: #fafafa;
      padding: 5rem 3rem;
    }

    .section-content {
      max-width: 1200px;
      margin: 0 auto;
    }

    .section-header {
      text-align: center;
      margin-bottom: 4rem;
    }

    .section-label {
      color: #8b5cf6;
      font-weight: 600;
      text-transform: uppercase;
      font-size: 0.875rem;
      letter-spacing: 0.05em;
      margin-bottom: 0.5rem;
      display: block;
    }

    .section-header h2 {
      font-size: 2.5rem;
      font-weight: 800;
      color: #1a1a1a;
      margin-bottom: 1rem;
    }

    .section-header p {
      font-size: 1.15rem;
      color: #4a5568;
      max-width: 700px;
      margin: 0 auto;
      line-height: 1.8;
    }

    .section-header code {
      background: rgba(139, 92, 246, 0.1);
      padding: 0.2rem 0.5rem;
      border-radius: 4px;
      font-size: 0.9em;
      color: #8b5cf6;
      font-family: 'Monaco', 'Menlo', 'Consolas', monospace;
    }

    .features-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
      gap: 2rem;
    }

    .feature-card {
      background: linear-gradient(135deg, #ffffff 0%, #fafafa 100%);
      padding: 2.5rem;
      border-radius: 16px;
      border: 1px solid rgba(139, 92, 246, 0.1);
      box-shadow: 0 4px 20px rgba(139, 92, 246, 0.08), 0 1px 3px rgba(0, 0, 0, 0.05);
      transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
      position: relative;
      overflow: hidden;
    }

    .feature-card::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      height: 3px;
      background: linear-gradient(90deg, #8b5cf6 0%, #d946ef 50%, #8b5cf6 100%);
      background-size: 200% 100%;
      opacity: 0;
      transition: opacity 0.4s ease;
    }

    .feature-card:hover {
      transform: translateY(-8px);
      box-shadow: 0 12px 40px rgba(139, 92, 246, 0.15), 0 4px 12px rgba(0, 0, 0, 0.08);
      border-color: rgba(139, 92, 246, 0.2);
    }

    .feature-card:hover::before {
      opacity: 1;
      animation: shimmer 2s infinite;
    }

    @keyframes shimmer {
      0% {
        background-position: -200% 0;
      }
      100% {
        background-position: 200% 0;
      }
    }

    .feature-card h3 {
      font-size: 1.35rem;
      font-weight: 700;
      margin-bottom: 0.75rem;
      color: #1a1a1a;
      background: linear-gradient(135deg, #1a1a1a 0%, #4a5568 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
    }

    .feature-card p {
      color: #6b7280;
      line-height: 1.6;
      font-size: 0.95rem;
    }

    /* FAQs Section */
    .faq-section {
      background: white;
      padding: 5rem 3rem;
    }

    .faq-container {
      max-width: 900px;
      margin: 0 auto;
    }

    .faq-item {
      border-bottom: 1px solid #e5e7eb;
      margin-bottom: 0;
    }

    .faq-question {
      width: 100%;
      background: none;
      border: none;
      padding: 1.5rem 3rem 1.5rem 0;
      text-align: left;
      font-size: 1.125rem;
      font-weight: 600;
      color: #1a1a1a;
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      transition: color 0.3s ease;
      position: relative;
    }

    .faq-question:hover {
      color: #8b5cf6;
    }

    .faq-question::after {
      content: '+';
      font-size: 1.5rem;
      color: #8b5cf6;
      font-weight: 400;
      transition: transform 0.3s ease;
      position: absolute;
      right: 0;
    }

    .faq-item.active .faq-question::after {
      content: '−';
      transform: rotate(180deg);
    }

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease, padding 0.3s ease;
      padding: 0;
    }

    .faq-item.active .faq-answer {
      max-height: 500px;
      padding: 0 0 1.5rem 0;
    }

    .faq-answer p {
      color: #6b7280;
      line-height: 1.7;
      font-size: 1rem;
    }

    .faq-answer code {
      background: rgba(139, 92, 246, 0.1);
      padding: 0.2rem 0.5rem;
      border-radius: 4px;
      font-size: 0.9em;
      color: #8b5cf6;
      font-family: 'Monaco', 'Menlo', 'Consolas', monospace;
    }

    /* Code Card Styles */
    .code-card {
      max-width: 700px;
      margin: 0 auto;
      background: #1a1a1a;
      border-radius: 12px;
      overflow: hidden;
      box-shadow: 0 20px 60px rgba(0, 0, 0, 0.2);
    }

    .code-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 0.5rem 1rem;
      background: #2d2d2d;
      border-bottom: 1px solid #3d3d3d;
    }

    .window-dots {
      display: flex;
      gap: 0.5rem;
    }

    .window-dots span {
      width: 12px;
      height: 12px;
      border-radius: 50%;
      background: #4a4a4a;
    }

    .window-dots span:nth-child(1) {
      background: #ff5f57;
    }

    .window-dots span:nth-child(2) {
      background: #febc2e;
    }

    .window-dots span:nth-child(3) {
      background: #28c840;
    }

    .copy-btn {
      background: rgba(139, 92, 246, 0.1);
      border: 1px solid rgba(139, 92, 246, 0.3);
      color: #a855f7;
      padding: 0.5rem 1rem;
      border-radius: 6px;
      font-size: 0.875rem;
      font-weight: 500;
      cursor: pointer;
      transition: all 0.2s ease;
      display: flex;
      align-items: center;
      gap: 0.5rem;
    }

    .copy-btn:hover {
      background: rgba(139, 92, 246, 0.2);
      border-color: rgba(139, 92, 246, 0.5);
    }

    .copy-btn.copied {
      background: rgba(34, 197, 94, 0.1);
      border-color: rgba(34, 197, 94, 0.3);
      color: #22c55e;
    }

    .copy-btn-icon::before {
      content: '📋';
    }

    .code-card pre {
      margin: 0;
      padding: 1.5rem;
      overflow-x: auto;
      background: #1a1a1a;
      text-align: left;
    }

    .code-card code {
      color: #e5e7eb;
      font-family: 'Monaco', 'Menlo', 'Consolas', monospace;
      font-size: 0.875rem;
      line-height: 1.7;
      display: block;
      text-align: left;
    }

    .code-hint {
      padding: 1rem 1.5rem;
      background: #2d2d2d;
      border-top: 1px solid #3d3d3d;
      display: flex;
      flex-direction: column;
      gap: 0.5rem;
      font-size: 0.875rem;
      color: #9ca3af;
    }

    .code-hint strong {
      color: #e5e7eb;
    }

    .code-hint code {
      background: rgba(139, 92, 246, 0.2);
      padding: 0.2rem 0.5rem;
      border-radius: 4px;
      font-size: 0.85em;
      color: #a855f7;
    }

    /* Image Showcase Section */
    .image-showcase {
      padding: 5rem 3rem;
      background: white;
      overflow: hidden;
    }

    .image-showcase .section-content {
      max-width: 1400px;
      margin: 0 auto;
    }

    .showcase-container {
      display: grid;
      grid-template-columns: 1.5fr 1fr;
      gap: 3rem;
      align-items: start;
    }

    .showcase-item {
      display: flex;
      flex-direction: column;
      gap: 1.5rem;
    }

    .showcase-item.large {
      grid-row: span 2;
    }

    .showcase-image {
      position: relative;
      border-radius: 16px;
      overflow: hidden;
      box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
      transition: transform 0.4s ease, box-shadow 0.4s ease;
      background: #f9fafb;
    }

    .showcase-image:hover {
      transform: translateY(-8px);
      box-shadow: 0 30px 80px rgba(139, 92, 246, 0.25);
    }

    .showcase-image img {
      width: 100%;
      height: auto;
      display: block;
    }

    .showcase-image::after {
      content: '';
      position: absolute;
      inset: 0;
      background: linear-gradient(135deg, rgba(139, 92, 246, 0.1) 0%, transparent 50%);
      opacity: 0;
      transition: opacity 0.4s ease;
    }

    .showcase-image:hover::after {
      opacity: 1;
    }

    .showcase-caption {
      text-align: left;
    }

    .showcase-caption h3 {
      font-size: 1.5rem;
      font-weight: 700;
      color: #1a1a1a;
      margin-bottom: 0.75rem;
      background: linear-gradient(135deg, #1a1a1a 0%, #4a5568 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
    }

    .showcase-caption p {
      color: #6b7280;
      line-height: 1.7;
      font-size: 1rem;
    }

    /* Footer */
    footer {
      background: #1a1a1a;
      color: #9ca3af;
      padding: 2rem 3rem;
      text-align: center;
    }

    footer p {
      margin: 0;
      font-size: 0.9rem;
    }

    /* Responsive Design */
    @media (max-width: 768px) {
      header {
        padding: 1rem 1.5rem;
        justify-content: space-between;
      }

      .logo {
        font-size: 1rem;
        position: static;
      }

      .nav-links {
        display: none;
      }

      .theme-toggle {
        position: static;
      }

      .hero {
        padding: 6rem 1.5rem 5rem;
      }

      .hero h1 {
        font-size: 2.5rem;
      }

      .hero-subtitle {
        font-size: 1rem;
      }

      .pill-row {
        flex-direction: column;
        align-items: center;
      }

      .pill {
        width: fit-content;
      }

      .light-section,
      #how-it-works {
        padding: 3rem 1.5rem !important;
      }

      .section-header h2 {
        font-size: 2rem;
      }

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

      .faq-section {
        padding: 3rem 1.5rem;
      }

      .faq-question {
        font-size: 1rem;
        padding-right: 2rem;
      }

      footer {
        padding: 1.5rem;
      }

      .code-card {
        max-width: 100%;
      }

      .code-card pre {
        padding: 1rem;
        font-size: 0.75rem;
      }

      .code-card code {
        font-size: 0.75rem;
      }

      .code-header {
        padding: 0.5rem 1rem;
      }

      .code-hint {
        padding: 0.75rem 1rem;
      }

      .copy-btn {
        padding: 0.4rem 0.75rem;
        font-size: 0.8rem;
      }

      .image-showcase {
        padding: 3rem 1.5rem;
      }

      .showcase-container {
        grid-template-columns: 1fr;
        gap: 2.5rem;
      }

      .showcase-item.large {
        grid-row: span 1;
      }

      .showcase-caption h3 {
        font-size: 1.25rem;
      }

      .showcase-caption p {
        font-size: 0.95rem;
      }
    }