:root {
      --primary: #6366f1;
      --primary-dark: #4f46e5;
      --text: #1e2937;
      --light: #f8fafc;
    }

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

    body {
      font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
      line-height: 1.7;
      color: var(--text);
      background-color: #f8fafc;
      overflow-x: hidden;
    }

    /* Header */
    header {
      background: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(10px);
      position: fixed;
      width: 100%;
      top: 0;
      z-index: 1000;
      box-shadow: 0 4px 20px rgba(0,0,0,0.08);
      transition: all 0.3s;
    }

    nav {
      max-width: 1280px;
      margin: 0 auto;
      padding: 1rem 5%;
      display: flex;
      justify-content: space-between;
      align-items: center;
    }

    .logo {
      font-size: 1.8rem;
      font-weight: 700;
      color: var(--primary);
      text-decoration: none;
      display: flex;
      align-items: center;
      gap: 8px;
    }

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

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

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

    .mobile-menu {
      display: none;
      font-size: 1.8rem;
      cursor: pointer;
      color: var(--text);
    }

    /* Hero Section */
    .hero {
      height: 100vh;
      min-height: 650px;
      background: linear-gradient(rgba(0,0,0,0.65), rgba(0,0,0,0.75)), 
                  url('https://source.unsplash.com/random/1920x1080/?software,technology') center/cover no-repeat;
      display: flex;
      align-items: center;
      color: white;
      text-align: center;
      padding: 0 5%;
      margin-top: 70px;
    }

    .hero-content {
      max-width: 900px;
      margin: 0 auto;
    }

    .hero h1 {
      font-size: clamp(2.5rem, 5vw, 4rem);
      line-height: 1.1;
      margin-bottom: 1.5rem;
      animation: fadeInUp 1s ease;
    }

    .hero p {
      font-size: 1.25rem;
      max-width: 700px;
      margin: 0 auto 2.5rem;
      opacity: 0.95;
    }

    .cta-buttons {
      display: flex;
      gap: 1rem;
      justify-content: center;
      flex-wrap: wrap;
    }

    .btn {
      padding: 14px 32px;
      border-radius: 50px;
      font-weight: 600;
      text-decoration: none;
      transition: all 0.4s ease;
      display: inline-block;
    }

    .btn-primary {
      background: var(--primary);
      color: white;
    }

    .btn-primary:hover {
      background: var(--primary-dark);
      transform: translateY(-4px);
      box-shadow: 0 10px 25px rgba(99, 102, 241, 0.4);
    }

    .btn-outline {
      border: 2px solid white;
      color: white;
    }

    .btn-outline:hover {
      background: white;
      color: var(--primary);
    }

    /* Products Section */
    .products-section {
      padding: 120px 5%;
      max-width: 1280px;
      margin: 0 auto;
      background: white;
    }

    .section-title {
      text-align: center;
      font-size: 2.8rem;
      margin-bottom: 1.5rem;
      color: var(--text);
    }

    .section-subtitle {
      text-align: center;
      font-size: 1.2rem;
      color: #64748b;
      max-width: 600px;
      margin: 0 auto 4rem;
    }

    .products-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
      gap: 2rem;
    }

    .product-card {
      background: white;
      border-radius: 20px;
      overflow: hidden;
      box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
      transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    }

    .product-card:hover {
      transform: translateY(-15px);
      box-shadow: 0 25px 50px rgba(0, 0, 0, 0.15);
    }

    .product-image {
      height: 240px;
      background-size: cover;
      background-position: center;
      position: relative;
    }

    .product-image::before {
      content: '';
      position: absolute;
      inset: 0;
      background: linear-gradient(transparent, rgba(0,0,0,0.4));
    }

    .product-info {
      padding: 2rem;
    }

    .product-name {
      font-size: 1.6rem;
      margin-bottom: 0.8rem;
      color: var(--text);
    }

    .product-description {
      color: #64748b;
      margin-bottom: 1.5rem;
      font-size: 1.05rem;
    }

    .features {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      margin-bottom: 1.8rem;
    }

    .feature-tag {
      background: #f1f5f9;
      color: #475569;
      padding: 6px 14px;
      border-radius: 30px;
      font-size: 0.85rem;
      font-weight: 500;
    }

    .price {
      font-size: 1.5rem;
      font-weight: 700;
      color: var(--primary);
      margin-bottom: 1.5rem;
    }

    /* Footer */
    footer {
      background: #0f172a;
      color: #cbd5e1;
      padding: 80px 5% 40px;
      text-align: center;
    }

    /* Mobile Responsiveness */
    @media (max-width: 768px) {
      .nav-links {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background: white;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        transition: 0.4s ease;
        box-shadow: 0 10px 20px rgba(0,0,0,0.1);
      }

      .nav-links.active {
        left: 0;
      }

      .mobile-menu {
        display: block;
      }

      .hero h1 {
        font-size: 2.8rem;
      }

      .cta-buttons {
        flex-direction: column;
        align-items: center;
      }

      .btn {
        width: 280px;
      }
    }

    /* Animations */
    @keyframes fadeInUp {
      from {
        opacity: 0;
        transform: translateY(40px);
      }
      to {
        opacity: 1;
        transform: translateY(0);
      }
    }

    .product-card {
      animation: fadeInUp 0.8s ease forwards;
    }