:root {
      --brand-green: #00ff00;
      --brand-green-dark: #00cc00;
      --brand-green-darker: #009900;
      --text-primary: #0a0a0a;
      --text-secondary: #525252;
      --surface: #ffffff;
      --surface-elevated: #fafafa;
      --border-color: #e5e5e5;
      --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
      --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.1);
      --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.12);
      --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.15);
      --radius-sm: 8px;
      --radius-md: 12px;
      --radius-lg: 16px;
      --radius-xl: 24px;
      --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }

    html.dark {
      --brand-green: #00ff00;
      --brand-green-dark: #00dd00;
      --text-primary: #f5f5f5;
      --text-secondary: #a3a3a3;
      --surface: #0a0a0a;
      --surface-elevated: #141414;
      --border-color: #262626;
      --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.5);
      --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.6);
      --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.7);
      --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.8);
    }

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

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

    body {
      font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
      background: var(--surface);
      color: var(--text-primary);
      line-height: 1.6;
      transition: background-color 0.3s ease, color 0.3s ease;
      -webkit-font-smoothing: antialiased;
      -moz-osx-font-smoothing: grayscale;
    }

    /* Typography */
    h1, h2, h3, h4, h5, h6 {
      font-weight: 800;
      line-height: 1.2;
      color: var(--text-primary);
      margin-bottom: 1rem;
    }

    p {
      color: var(--text-secondary);
      margin-bottom: 1rem;
    }

    /* Header */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.85);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-color);
      transition: var(--transition);
    }

    html.dark .site-header {
      background: rgba(10, 10, 10, 0.85);
    }

    .site-header.scrolled {
      box-shadow: var(--shadow-md);
    }

    .logo-container {
      display: flex;
      align-items: center;
      gap: 0.75rem;
      text-decoration: none;
      transition: var(--transition);
    }

    .logo-container:hover {
      transform: translateY(-2px);
    }

    .logo-wrap {
      background: var(--brand-green);
      padding: 8px 12px;
      border-radius: var(--radius-md);
      box-shadow: 0 0 20px rgba(0, 255, 0, 0.3);
      transition: var(--transition);
    }

    .logo-wrap:hover {
      box-shadow: 0 0 30px rgba(0, 255, 0, 0.5);
    }

    .logo {
      height: 32px;
      width: auto;
      display: block;
    }

    html.dark .logo {
      filter: invert(1) brightness(1.1);
    }

    .company-name {
      font-size: 1.5rem;
      font-weight: 900;
      color: var(--text-primary);
      letter-spacing: -0.02em;
    }

    .company-tagline {
      font-size: 0.75rem;
      font-weight: 600;
      color: var(--brand-green-dark);
      text-transform: uppercase;
      letter-spacing: 0.05em;
    }

    /* Navigation */
    .nav-link-custom {
      color: var(--text-secondary);
      text-decoration: none;
      font-weight: 600;
      font-size: 0.95rem;
      padding: 0.5rem 1rem;
      border-radius: var(--radius-sm);
      transition: var(--transition);
      position: relative;
    }

    .nav-link-custom::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 50%;
      transform: translateX(-50%) scaleX(0);
      width: 80%;
      height: 2px;
      background: var(--brand-green);
      transition: transform 0.3s ease;
    }

    .nav-link-custom:hover {
      color: var(--text-primary);
      background: var(--surface-elevated);
    }

    .nav-link-custom:hover::after {
      transform: translateX(-50%) scaleX(1);
    }

    /* Buttons */
    .btn-primary-custom {
      background: var(--brand-green);
      color: #000;
      border: none;
      padding: 0.75rem 1.75rem;
      font-weight: 700;
      font-size: 0.95rem;
      border-radius: var(--radius-md);
      transition: var(--transition);
      box-shadow: 0 0 20px rgba(0, 255, 0, 0.3);
      text-decoration: none;
      display: inline-block;
    }

    .btn-primary-custom:hover {
      background: var(--brand-green-dark);
      transform: translateY(-2px);
      box-shadow: 0 0 30px rgba(0, 255, 0, 0.5);
      color: #000;
    }

    .btn-secondary-custom {
      background: transparent;
      color: var(--text-primary);
      border: 2px solid var(--border-color);
      padding: 0.75rem 1.75rem;
      font-weight: 600;
      font-size: 0.95rem;
      border-radius: var(--radius-md);
      transition: var(--transition);
      text-decoration: none;
      display: inline-block;
    }

    .btn-secondary-custom:hover {
      background: var(--surface-elevated);
      border-color: var(--brand-green);
      color: var(--text-primary);
      transform: translateY(-2px);
    }

    .btn-large {
      padding: 1rem 2.5rem;
      font-size: 1.1rem;
    }

    /* Floating AI Chat Button */
    .floating-ai-button {
      position: fixed;
      bottom: 30px;
      right: 30px;
      width: 70px;
      height: 70px;
      background: var(--brand-green);
      color: #000;
      border: none;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      transition: var(--transition);
      cursor: pointer;
      box-shadow: 0 0 20px rgba(0, 255, 0, 0.4);
      z-index: 9998;
      font-size: 1.75rem;
      font-weight: bold;
    }

    .floating-ai-button:hover {
      background: var(--brand-green-dark);
      transform: scale(1.1);
      box-shadow: 0 0 30px rgba(0, 255, 0, 0.6);
    }

    .floating-ai-button.pulse {
      animation: pulse 2s infinite;
    }

    @keyframes pulse {
      0% {
        box-shadow: 0 0 0 0 rgba(0, 255, 0, 0.7);
      }
      70% {
        box-shadow: 0 0 0 15px rgba(0, 255, 0, 0);
      }
      100% {
        box-shadow: 0 0 0 0 rgba(0, 255, 0, 0);
      }
    }

    /* Floating Chat Container */
    .chat-container {
      position: fixed;
      bottom: 120px;
      right: 30px;
      width: 380px;
      height: 600px;
      background: var(--surface);
      border: 2px solid var(--border-color);
      border-radius: var(--radius-lg);
      box-shadow: var(--shadow-xl);
      z-index: 9999;
      display: none;
      flex-direction: column;
      overflow: hidden;
      transition: var(--transition);
    }

    .chat-container.open {
      display: flex;
      animation: slideIn 0.3s ease-out;
    }

    @keyframes slideIn {
      from {
        opacity: 0;
        transform: translateY(20px) scale(0.9);
      }
      to {
        opacity: 1;
        transform: translateY(0) scale(1);
      }
    }

    .chat-header {
      background: var(--brand-green);
      color: #000;
      padding: 1rem 1.5rem;
      font-weight: 700;
      display: flex;
      justify-content: space-between;
      align-items: center;
    }

    .chat-close {
      background: none;
      border: none;
      font-size: 1.5rem;
      cursor: pointer;
      color: #000;
      transition: var(--transition);
    }

    .chat-close:hover {
      transform: scale(1.2);
    }

    .chat-frame {
      flex: 1;
      border: none;
      width: 100%;
      height: 100%;
    }

    /* Theme Toggle */
    .theme-toggle {
      background: var(--surface-elevated);
      border: 2px solid var(--border-color);
      color: var(--text-primary);
      width: 44px;
      height: 44px;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      transition: var(--transition);
      cursor: pointer;
    }

    .theme-toggle:hover {
      background: var(--brand-green);
      border-color: var(--brand-green);
      transform: rotate(180deg);
      box-shadow: 0 0 20px rgba(0, 255, 0, 0.4);
    }

    /* Hero Section */
    .hero-section {
      padding: 6rem 0;
      background: linear-gradient(135deg, var(--surface) 0%, var(--surface-elevated) 100%);
      position: relative;
      overflow: hidden;
    }

    .hero-section::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      bottom: 0;
      background: radial-gradient(circle at 20% 50%, rgba(0, 255, 0, 0.03) 0%, transparent 50%),
                  radial-gradient(circle at 80% 80%, rgba(0, 255, 0, 0.03) 0%, transparent 50%);
      pointer-events: none;
    }

    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 0.5rem;
      font-size: 0.875rem;
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 0.1em;
      color: var(--brand-green-dark);
      background: rgba(0, 255, 0, 0.1);
      padding: 0.5rem 1rem;
      border-radius: var(--radius-xl);
      margin-bottom: 1.5rem;
      border: 1px solid rgba(0, 255, 0, 0.2);
    }

    .eyebrow::before {
      content: '✦';
      font-size: 0.75rem;
    }

    .hero-title {
      font-size: clamp(2.5rem, 5vw, 4rem);
      font-weight: 900;
      line-height: 1.1;
      margin-bottom: 1.5rem;
      background: linear-gradient(135deg, var(--text-primary) 0%, var(--text-secondary) 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
    }

    .hero-subtitle {
      font-size: clamp(1.125rem, 2vw, 1.25rem);
      color: var(--text-secondary);
      max-width: 800px;
      margin: 0 auto 2rem;
      line-height: 1.7;
    }

    .badge-group {
      display: flex;
      justify-content: center;
      gap: 1rem;
      flex-wrap: wrap;
      margin-top: 2rem;
    }

    .badge-custom {
      background: var(--surface);
      border: 2px solid var(--border-color);
      color: var(--text-primary);
      padding: 0.5rem 1.25rem;
      border-radius: var(--radius-xl);
      font-weight: 600;
      font-size: 0.875rem;
      box-shadow: var(--shadow-sm);
      transition: var(--transition);
    }

    .badge-custom:hover {
      border-color: var(--brand-green);
      box-shadow: var(--shadow-md);
      transform: translateY(-2px);
    }

    /* Card Styles */
    .card-custom {
      background: var(--surface);
      border: 2px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 2rem;
      height: 100%;
      transition: var(--transition);
      box-shadow: var(--shadow-sm);
    }

    .card-custom:hover {
      border-color: var(--brand-green);
      box-shadow: var(--shadow-lg);
      transform: translateY(-4px);
    }

    .card-icon {
      font-size: 2.5rem;
      margin-bottom: 1rem;
      display: block;
    }

    .card-title {
      font-size: 1.25rem;
      font-weight: 700;
      color: var(--text-primary);
      margin-bottom: 0.75rem;
    }

    .card-description {
      font-size: 0.95rem;
      color: var(--text-secondary);
      line-height: 1.6;
    }

    /* Timeline Step */
    .step-card {
      background: var(--surface);
      border: 2px solid var(--border-color);
      border-radius: var(--radius-lg);
      padding: 2rem;
      transition: var(--transition);
      box-shadow: var(--shadow-sm);
      position: relative;
      overflow: hidden;
    }

    .step-card::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      width: 4px;
      height: 100%;
      background: var(--brand-green);
      transform: scaleY(0);
      transition: transform 0.4s ease;
      transform-origin: bottom;
    }

    .step-card:hover::before {
      transform: scaleY(1);
      transform-origin: top;
    }

    .step-card:hover {
      border-color: var(--brand-green);
      box-shadow: var(--shadow-lg);
      transform: translateX(8px);
    }

    .step-number {
      font-size: 3rem;
      font-weight: 900;
      color: var(--brand-green);
      line-height: 1;
      opacity: 0.3;
      position: absolute;
      top: 1rem;
      right: 1rem;
    }

    /* Section Styling */
    .section {
      padding: 5rem 0;
      position: relative;
    }

    .section-header {
      text-align: center;
      margin-bottom: 4rem;
      max-width: 800px;
      margin-left: auto;
      margin-right: auto;
    }

    .section-title {
      font-size: clamp(2rem, 4vw, 3rem);
      font-weight: 900;
      margin-bottom: 1rem;
      color: var(--text-primary);
    }

    .section-subtitle {
      font-size: 1.125rem;
      color: var(--text-secondary);
      line-height: 1.7;
    }

    /* Deliverable Item */
    .deliverable-item {
      display: flex;
      gap: 1.5rem;
      margin-bottom: 2rem;
      align-items: flex-start;
    }

    .deliverable-icon {
      flex-shrink: 0;
      width: 56px;
      height: 56px;
      background: var(--surface-elevated);
      border: 2px solid var(--border-color);
      border-radius: var(--radius-md);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.75rem;
      transition: var(--transition);
    }

    .deliverable-item:hover .deliverable-icon {
      border-color: var(--brand-green);
      background: rgba(0, 255, 0, 0.1);
      transform: scale(1.1) rotate(5deg);
    }

    /* Contact Form */
    .contact-form {
      background: var(--surface);
      border: 2px solid var(--border-color);
      border-radius: var(--radius-xl);
      padding: 3rem;
      box-shadow: var(--shadow-xl);
    }

    .form-control-custom {
      background: var(--surface-elevated);
      border: 2px solid var(--border-color);
      color: var(--text-primary);
      padding: 0.875rem 1.25rem;
      font-size: 1rem;
      border-radius: var(--radius-md);
      transition: var(--transition);
      width: 100%;
      font-family: inherit;
    }

    .form-control-custom:focus {
      outline: none;
      border-color: var(--brand-green);
      box-shadow: 0 0 0 3px rgba(0, 255, 0, 0.1);
      background: var(--surface);
    }

    .form-control-custom::placeholder {
      color: var(--text-secondary);
      opacity: 0.6;
    }

    /* Footer */
    .site-footer {
      background: var(--surface-elevated);
      border-top: 1px solid var(--border-color);
      padding: 2rem 0;
      text-align: center;
    }

    /* Accessibility */
    .skip-link {
      position: absolute;
      top: -40px;
      left: 0;
      background: var(--brand-green);
      color: #000;
      padding: 0.5rem 1rem;
      text-decoration: none;
      font-weight: 700;
      z-index: 100;
    }

    .skip-link:focus {
      top: 0;
    }

    /* Focus Visible */
    *:focus-visible {
      outline: 3px solid var(--brand-green);
      outline-offset: 2px;
    }

    /* Reduced Motion */
    @media (prefers-reduced-motion: reduce) {
      *,
      *::before,
      *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
      }
    }

    /* Mobile Responsive */
    @media (max-width: 768px) {
      .hero-section {
        padding: 4rem 0;
      }

      .section {
        padding: 3rem 0;
      }

      .contact-form {
        padding: 2rem;
      }

      .chat-container {
        width: calc(100vw - 40px);
        height: 70vh;
        right: 20px;
        bottom: 100px;
      }

      .floating-ai-button {
        width: 60px;
        height: 60px;
        bottom: 20px;
        right: 20px;
        font-size: 1.5rem;
      }
    }