* { margin: 0; padding: 0; box-sizing: border-box; }
    
    :root {
      /* Aligned with DESIGN_GUIDE.md */
      --primary-brand: #7E57C2; /* Deep Purple */
      --primary-accent: #FFAB40; /* Amber */
      --neutral-dark: #121212;
      --neutral-medium: #616161;
      --neutral-light: #F5F5F5;
      --neutral-white: #FFFFFF;
      --dark-bg: linear-gradient(180deg, #121212, #1E1E1E);
      --primary-gradient: linear-gradient(135deg, var(--primary-brand), var(--primary-accent));
    }
    
    body { 
      font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
      background: var(--dark-bg);
      color: var(--neutral-dark); 
      overflow-x: hidden;
      line-height: 1.6;
    }

    /* Navigation */
    nav {
      position: fixed;
      top: 0;
      width: 100%;
      background: rgba(10, 10, 26, 0.95);
      backdrop-filter: blur(20px);
      padding: 1rem 0;
      z-index: 1000;
      border-bottom: 1px solid rgba(126, 87, 194, 0.3);
      transition: transform 0.3s ease;
    }

    .nav-container {
      max-width: 1400px;
      margin: 0 auto;
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 0 2rem;
    }

    .logo {
      color: var(--neutral-white);
      font-size: 1.8rem;
      font-weight: bold;
      text-decoration: none;
      display: flex;
      align-items: center;
    }

    .logo span { color: var(--primary-brand); }

    .nav-links {
      display: flex;
      list-style: none;
      gap: 2rem;
    }

    .nav-links a {
      color: var(--neutral-white);
      text-decoration: none;
      font-weight: 500;
      transition: color 0.3s ease;
    }

    .nav-links a:hover { color: var(--primary-brand); }

    .hamburger {
      display: none;
      flex-direction: column;
      cursor: pointer;
    }

    .hamburger span {
      width: 25px;
      height: 3px;
      background: var(--neutral-white);
      margin: 3px 0;
      transition: 0.3s;
      border-radius: 2px;
    }
    
    .hamburger.toggle .bar1 { transform: rotate(-45deg) translate(-6px, 6px); }
    .hamburger.toggle .bar2 { opacity: 0; }
    .hamburger.toggle .bar3 { transform: rotate(45deg) translate(-6px, -6px); }

    /* Header Hero */
    header { 
      position: relative;
      min-height: 100vh;
      display: flex;
      flex-direction: column;
      justify-content: center;
      align-items: center;
      text-align: center;
      color: var(--neutral-white);
      background: linear-gradient(135deg, rgba(10, 10, 26, 0.9), rgba(26, 26, 46, 0.8));
      padding: 8rem 2rem 4rem;
    }
    
    .header-content {
      max-width: 1200px;
      z-index: 2;
    }
    
    .brand-badge {
      background: var(--primary-gradient);
      color: var(--neutral-white);
      padding: 1rem 2.5rem;
      border-radius: 35px;
      font-size: 1.1rem;
      font-weight: bold;
      margin: 0 auto 2rem;
      text-transform: uppercase;
      letter-spacing: 1.5px;
      box-shadow: 0 6px 20px rgba(255, 171, 64, 0.4);
      display: inline-block;
      animation: glow 2s infinite alternate;
    }

    @keyframes glow {
      from { box-shadow: 0 6px 20px rgba(255, 171, 64, 0.4); }
      to { box-shadow: 0 6px 25px rgba(255, 171, 64, 0.6); }
    }
    
    header h1 { 
      font-size: 4rem;
      margin-bottom: 1rem;
      font-weight: 700;
      background: linear-gradient(135deg, var(--neutral-white), var(--primary-accent));
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
    }
    
    .tagline { 
      font-size: 2rem;
      margin: 1rem 0;
      color: var(--primary-accent);
      font-weight: 600;
    }
    
    .subtitle { 
      font-size: 1.3rem;
      opacity: 0.9;
      max-width: 800px;
      margin: 1rem auto;
    }

    /* Service Cards Grid */
    .services-overview {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 2rem;
      margin: 3rem auto;
      max-width: 1200px;
    }

    .service-card {
      background: rgba(255, 255, 255, 0.1);
      backdrop-filter: blur(10px);
      padding: 2rem;
      border-radius: 20px;
      border: 1px solid rgba(126, 87, 194, 0.3);
      transition: all 0.3s ease;
      text-align: left;
    }

    .service-card:hover {
      transform: translateY(-10px);
      box-shadow: 0 15px 40px rgba(126, 87, 194, 0.3);
      border-color: var(--primary-brand);
    }

    .service-icon {
      font-size: 3rem;
      margin-bottom: 1rem;
    }

    .service-card h3 {
      color: var(--neutral-white);
      margin-bottom: 1rem;
      font-size: 1.5rem;
    }

    .service-card p {
      color: rgba(255, 255, 255, 0.8);
      margin-bottom: 1rem;
    }

    .service-card ul {
      list-style: none;
      color: rgba(255, 255, 255, 0.7);
      font-size: 0.9rem;
    }

    .service-card li {
      padding: 0.3rem 0;
      padding-left: 1.5rem;
      position: relative;
    }

    .service-card li::before {
      content: '✓';
      position: absolute;
      left: 0;
      color: var(--primary-brand);
      font-weight: bold;
    }

    /* CTA Buttons */
    .cta-container {
      display: flex;
      gap: 1rem;
      justify-content: center;
      flex-wrap: wrap;
      margin: 3rem 0;
    }

    .btn-primary {
      padding: 1.2rem 3rem;
      background: var(--primary-gradient);
      color: var(--neutral-white);
      border: none;
      border-radius: 40px;
      font-size: 1.2rem;
      font-weight: 700;
      cursor: pointer;
      text-decoration: none;
      display: inline-block;
      transition: all 0.3s ease;
      box-shadow: 0 8px 25px rgba(126, 87, 194, 0.5);
      text-transform: uppercase;
      letter-spacing: 1px;
    }

    .btn-primary:hover {
      transform: translateY(-3px);
      box-shadow: 0 12px 35px rgba(126, 87, 194, 0.7);
    }

    .btn-secondary {
      padding: 1rem 2.5rem;
      background: transparent;
      color: var(--primary-brand);
      border: 2px solid var(--primary-brand);
      border-radius: 35px;
      font-size: 1.1rem;
      font-weight: 600;
      cursor: pointer;
      text-decoration: none;
      display: inline-block;
      transition: all 0.3s ease;
    }

    .btn-secondary:hover {
      background: var(--primary-brand);
      color: var(--neutral-white);
      transform: translateY(-3px);
    }

    /* Header specific override for dark background */
    header .btn-secondary {
      color: var(--neutral-white);
      border-color: rgba(126, 87, 194, 0.6);
      background: rgba(255, 255, 255, 0.1);
      backdrop-filter: blur(10px);
    }

    header .btn-secondary:hover {
      background: rgba(126, 87, 194, 0.2);
      border-color: var(--primary-brand);
    }

    /* Main Container */
    .container {
      max-width: 1400px;
      margin: 2rem auto;
      padding: 2rem;
      background: var(--neutral-white);
      border-radius: 30px;
      box-shadow: 0 20px 50px rgba(0,0,0,0.2);
    }

    /* Section Styles */
    section {
      margin: 5rem 0;
      padding: 2rem;
    }
    section[id], header[id] { scroll-margin-top: 80px; }

    h2 {
      font-size: 3rem;
      margin-bottom: 2rem;
      color: var(--neutral-dark);
      text-align: center;
      font-weight: 700;
      position: relative;
    }

    h2::after {
      content: '';
      display: block;
      width: 150px;
      height: 5px;
      background: var(--primary-gradient);
      margin: 1.5rem auto;
      border-radius: 3px;
    }

    .section-subtitle {
      text-align: center;
      font-size: 1.2rem;
      margin-top: -1rem;
      margin-bottom: 3rem;
      color: var(--neutral-medium);
    }

    /* Tech Stack Grid */
    .tech-stack {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
      gap: 2rem;
      margin: 3rem 0;
    }

    .tech-item {
      background: var(--neutral-white);
      padding: 2rem;
      border-radius: 15px;
      box-shadow: 0 10px 25px rgba(0,0,0,0.1);
      text-align: center;
      border-top: 4px solid var(--primary-brand);
      transition: transform 0.3s ease;
    }

    .tech-item:hover {
      transform: translateY(-5px);
    }

    .tech-item h4 {
      color: var(--neutral-dark);
      margin: 1rem 0;
      font-size: 1.2rem;
    }

    /* Refactored Service Card (light version) */
    .service-card--light {
      background: var(--neutral-light);
      border-color: rgba(0,0,0,0.1);
      color: var(--neutral-dark);
    }
    .service-card--light h3 {
      color: var(--neutral-dark);
    }
    .service-card--light p,
    .service-card--light ul {
      color: var(--neutral-medium);
    }

    /* Refactored Pricing/Info Boxes */
    .info-box {
      margin-top: 2rem;
      padding: 2rem;
      border-radius: 15px;
    }
    .info-box--dark {
      background: var(--neutral-dark);
      color: var(--neutral-white);
    }
    .info-box--dark h4, .info-box--dark h3 {
      color: var(--neutral-white);
      margin-bottom: 1rem;
    }

    /* Footer */
    footer {
      background: #0a0a1a;
      color: var(--neutral-white);
      padding: 4rem 2rem;
      margin-top: 4rem;
    }

    .footer-section .footer-brand-link {
      color: var(--neutral-white);
    }

    .footer-content {
      max-width: 1400px;
      margin: 0 auto;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
      gap: 3rem;
      margin-bottom: 3rem;
    }

    .footer-section h4 {
      color: var(--primary-brand);
      margin-bottom: 1rem;
      font-size: 1.2rem;
    }

    .footer-section ul {
      list-style: none;
    }

    .footer-section li {
      margin-bottom: 0.5rem;
    }

    .footer-section a {
      color: rgba(255, 255, 255, 0.8);
      text-decoration: none;
      transition: color 0.3s ease;
    }

    .footer-section a:hover {
      color: var(--primary-brand);
    }

    .footer-section .social-links {
      display: flex;
      gap: 1rem;
      margin-top: 1rem;
    }

    .footer-section .social-links a {
      font-size: 1.1rem;
      font-weight: bold;
      color: rgba(255, 255, 255, 0.8);
      transition: all 0.3s ease;
      text-decoration: none;
      width: 40px;
      height: 40px;
      display: flex;
      align-items: center;
      justify-content: center;
      border: 1px solid rgba(255, 255, 255, 0.3);
      border-radius: 50%;
    }

    .footer-section .social-links a:hover {
      color: var(--primary-brand);
      border-color: var(--primary-brand);
      transform: translateY(-3px);
    }

    .footer-bottom {
      text-align: center;
      padding-top: 2rem;
      border-top: 1px solid rgba(126, 87, 194, 0.3);
    }
    
    .footer-bottom a {
      color: rgba(255, 255, 255, 0.8);
      text-decoration: none;
      transition: color 0.3s ease;
      margin: 0 0.5rem;
    }

    .footer-bottom a:hover {
      color: var(--primary-brand);
      text-decoration: underline;
    }

    /* Scroll to Top */
    .scroll-top {
      position: fixed;
      bottom: 30px;
      left: 30px;
      width: 55px;
      height: 55px;
      background: var(--primary-gradient);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      cursor: pointer;
      opacity: 0;
      visibility: hidden;
      transition: all 0.3s ease;
      box-shadow: 0 6px 20px rgba(126, 87, 194, 0.4);
      border: none;
      color: var(--neutral-white);
      font-size: 1.5rem;
      z-index: 999;
    }

    .scroll-top.show {
      opacity: 1;
      visibility: visible;
    }

    .scroll-top:hover {
      transform: translateY(-5px);
      box-shadow: 0 8px 25px rgba(126, 87, 194, 0.6);
    }

    /* Responsive Design */
    @media (max-width: 768px) {
      .nav-links {
        position: fixed;
        right: 0;
        top: 0;
        height: 100vh;
        width: 100%;
        background: var(--dark-bg);
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 3rem;
        transform: translateX(100%);
        transition: transform 0.5s ease-in-out;
        font-size: 1.5rem;
      }

      .nav-links.nav-active {
        transform: translateX(0%);
      }

      .hamburger { display: flex; }
      
      header h1 { font-size: 2.5rem; }
      .tagline { font-size: 1.5rem; }
      .subtitle { font-size: 1.1rem; }

      .services-overview,
      .tech-stack,
      .footer-grid {
        grid-template-columns: 1fr;
      }
      
      h2 { font-size: 2rem; }
      
      .cta-container {
        flex-direction: column;
        align-items: stretch;
      }
      
      .container {
        padding-left: 1rem;
        padding-right: 1rem;
      }

      .nav-container {
        padding: 0 1rem;
      }
    }