:root {
      --primary: #10b981;
      --primary-dark: #059669;
      --dark: #111827;
      --light: #f9fafb;
      --gray: #6b7280;
      --gray-light: #e5e7eb;
    }

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

    body {
      font-family: 'Poppins', sans-serif;
      color: var(--dark);
      line-height: 1.6;
      overflow-x: hidden;
    }

    img { max-width: 100%; display: block; }

    .container {
      width: 90%;
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 20px;
    }

    /* Navbar */
    header {
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      background: rgba(255, 255, 255, 0.95);
      backdrop-filter: blur(10px);
      z-index: 1000;
      box-shadow: 0 2px 20px rgba(0,0,0,0.1);
      transition: all 0.3s;
    }

    .navbar {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 1rem 0;
    }

    .logo {
      font-size: 1.8rem;
      font-weight: 700;
      color: var(--primary);
    }

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

    .nav-links {
      display: flex;
      gap: 2.5rem;
      list-style: none;
    }

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

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

    .nav-btn {
      background: var(--primary);
      color: white;
      border: none;
      padding: 0.7rem 1.5rem;
      border-radius: 50px;
      font-weight: 600;
      cursor: pointer;
      transition: 0.3s;
    }

    .nav-btn:hover {
      background: var(--primary-dark);
      transform: translateY(-3px);
    }

    .hamburger {
      display: none;
      font-size: 1.8rem;
      cursor: pointer;
      color: var(--dark);
    }

    /* Hero Section */
    .hero {
      margin-top: 80px;
      padding: 100px 0;
      background: linear-gradient(135deg, #f0fdf4 0%, #dcfce7 100%);
      min-height: 90vh;
      display: flex;
      align-items: center;
    }

    .hero-content {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 4rem;
      align-items: center;
    }

    .hero-text h1 {
      font-size: 3.5rem;
      line-height: 1.2;
      margin-bottom: 1.5rem;
      color: var(--dark);
    }

    .hero-text p {
      font-size: 1.2rem;
      color: var(--gray);
      margin-bottom: 2rem;
    }

    .btn-primary {
      background: var(--primary);
      color: white;
      padding: 1rem 2rem;
      border: none;
      border-radius: 50px;
      font-size: 1.1rem;
      font-weight: 600;
      cursor: pointer;
      transition: 0.3s;
      box-shadow: 0 10px 20px rgba(16, 185, 129, 0.3);
    }

    .btn-primary:hover {
      background: var(--primary-dark);
      transform: translateY(-5px);
    }

    .hero-image img {
      border-radius: 20px;
      box-shadow: 0 20px 40px rgba(0,0,0,0.1);
    }

    /* Features Tabs */
    .features {
      padding: 100px 0;
      background: white;
    }

    .section-title {
      text-align: center;
      font-size: 2.5rem;
      margin-bottom: 3rem;
      color: var(--dark);
    }

    .tabs {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 2rem;
    }

    .tab-card {
      background: white;
      border-radius: 16px;
      overflow: hidden;
      box-shadow: 0 10px 30px rgba(0,0,0,0.08);
      transition: 0.4s;
      cursor: pointer;
    }

    .tab-card:hover {
      transform: translateY(-15px);
      box-shadow: 0 20px 40px rgba(0,0,0,0.15);
    }

    .tab-card.active {
      border: 3px solid var(--primary);
    }

    .tab-card img {
      height: 220px;
      object-fit: cover;
    }

    .tab-info {
      padding: 1.5rem;
    }

    .tab-info h3 {
      font-size: 1.5rem;
      margin-bottom: 1rem;
      color: var(--dark);
    }

    /* Products Slider */
    .products {
      padding: 100px 0;
      background: #f8fafc1c0a;
    }

    .slider {
      position: relative;
      overflow: hidden;
      border-radius: 16px;
    }

    .slides {
      display: flex;
      transition: transform 0.6s ease;
    }

    .slide {
      min-width: 100%;
    }

    .slide img {
      width: 100%;
      height: 500px;
      object-fit: cover;
    }

    .slider-btn {
      position: absolute;
      top: 50%;
      transform: translateY(-50%);
      background: rgba(0,0,0,0.5);
      color: white;
      border: none;
      width: 50px;
      height: 50px;
      border-radius: 50%;
      font-size: 1.5rem;
      cursor: pointer;
      z-index: 10;
    }

    .prev { left: 20px; }
    .next { right: 20px; }

    /* CTA Section */
    .cta {
      padding: 120px 0;
      background: linear-gradient(rgba(16, 185, 129, 0.95), rgba(5, 150, 105, 0.95)), url('https://images.unsplash.com/photo-1498837167922-ddd27525d352?w=1200') center/cover;
      color: white;
      text-align: center;
    }

    .cta h2 {
      font-size: 3rem;
      margin-bottom: 1.5rem;
    }

    .timer {
      display: flex;
      justify-content: center;
      gap: 2rem;
      margin: 2rem 0;
      font-size: 1.5rem;
    }

    .timer span {
      font-size: 3rem;
      font-weight: 700;
    }

    /* Footer */
    footer {
      background: var(--dark);
      color: white;
      padding: 80px 0 30px;
    }

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

    .footer-col h3 {
      margin-bottom: 1.5rem;
      color: var(--primary);
    }

    .footer-col a {
      color: #ccc;
      text-decoration: none;
      display: block;
      margin-bottom: 0.8rem;
      transition: 0.3s;
    }

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

    .social-links a {
      font-size: 1.8rem;
      margin-right: 1rem;
      color: #ccc;
      transition: 0.3s;
    }

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

    /* Mobile Menu */
    @media (max-width: 768px) {
      .hamburger { display: block; }

      .nav-links {
        position: fixed;
        top: 80px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 80px);
        background: white;
        flex-direction: column;
        align-items: center;
        justify-content: start;
        padding-top: 3rem;
        transition: 0.4s;
        box-shadow: 0 10px 20px rgba(0,0,0,0.1);
      }

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

      .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
      }

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

      .timer {
        flex-wrap: wrap;
        gap: 1rem;
      }
    }