* {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
      font-family: 'Poppins', sans-serif;
    }
    body {
      background: url('https://images.unsplash.com/photo-1476231682828-37e571bc172f?ixlib=rb-1.2.1&auto=format&fit=crop&w=1350&q=80') no-repeat center center fixed;
      background-size: cover;
      display: flex;
      align-items: center;
      justify-content: center;
      min-height: 100vh;
      padding: 20px;
      position: relative;
    }
    body::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      background-color: rgba(0, 0, 0, 0.5);
      z-index: 0;
    }
     .hero {
      position: relative;
      height: 90vh;
      overflow: hidden;
    }
    
    
    .hero-content {
      position: relative;
      z-index: 1;
      height: 100%;
      display: flex;
      flex-direction: column;
    }
    
    .logo {
      width: 50px;
      height: 50px;
      border-radius: 50%;
      object-fit: cover;
    }
    
    
    .navbar-brand {
      display: flex;
      align-items: center;
      gap: 15px;
    }
    
    .nav-link {
      display: flex;
      align-items: center;
      gap: 20px;
      color: white !important;
    }
    
    .nav-link:hover {
      color: #f1c40f !important;
    }
  .navbar-toggler-icon{
    color: white;
    background-color: #fff;
  }
    .levels {
      display: flex;
      flex-wrap: wrap;
      gap: 50px;
      margin-top:10% ;
      max-width: 2000px;
      width: 100%;
      justify-content: center;
      position: relative;
      z-index: 1;
    }
    .level-card {
      flex: 1 1 250px;
      background: linear-gradient(135deg, rgba(46, 139, 87, 0.9), rgba(60, 179, 113, 0.9));
      border-radius: 16px;
      color: #fff;
      padding: 20px;
      text-align: center;
      box-shadow: 0 6px 18px rgba(0, 0, 0, 0.2);
      transition: transform 0.3s ease, box-shadow 0.3s ease;
      cursor: pointer;
      overflow: hidden;
      position: relative;
      min-height: 300px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .level-card:nth-child(2) {
      background: linear-gradient(135deg, rgba(255, 140, 0, 0.9), rgba(255, 165, 0, 0.9));
    }
    .level-card:nth-child(3) {
      background: linear-gradient(135deg, rgba(183, 28, 28, 0.9), rgba(229, 57, 53, 0.9));
    }
    .level-card:hover {
      transform: translateY(-8px) scale(1.02);
      box-shadow: 0 12px 24px rgba(0, 0, 0, 0.3);
    }
    .level-card h2 {
      font-size: 1.75rem;
      margin-bottom: 10px;
      position: relative;
      z-index: 2;
    }
    .level-card p {
      font-size: 1rem;
      opacity: 0.85;
      position: relative;
      z-index: 2;
    }
    .card-image {
      height: 120px;
      width: 100%;
      background-size: cover;
      background-position: center;
      border-radius: 10px;
      margin: 10px 0;
      position: relative;
      overflow: hidden;
    }
    /* Replace these with your own image paths */
    .level-card:nth-child(1) .card-image {
      background-image: url(images/image3.jpg);
    }
    .level-card:nth-child(2) .card-image {
      background-image:url(images/image1.jpg);
    }
    .level-card:nth-child(3) .card-image {
      background-image: url(images/image2.jpg);
    
    }
    .play-btn {
      background-color: #fff;
      color: #2e8b57;
      border: none;
      border-radius: 50%;
      width: 50px;
      height: 50px;
      font-size: 20px;
      display: flex;
      align-items: center;
      justify-content: center;
      margin: 0 auto;
      cursor: pointer;
      transition: all 0.3s ease;
      position: relative;
      z-index: 2;
      box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
    }
    .level-card:nth-child(2) .play-btn {
      color: #ff8c00;
    }
    .level-card:nth-child(3) .play-btn {
      color: #b71c1c;
    }
    .play-btn:hover {
      transform: scale(1.1);
      box-shadow: 0 6px 12px rgba(0, 0, 0, 0.3);
    }
    .play-btn::after {
      content: '▶';
      position: relative;
      left: 2px;
    }
    @media (max-width: 600px) {
      .level-card {
        padding: 15px;
        min-height: 280px;
      }
      .level-card h2 {
        font-size: 1.5rem;
      }
      .level-card p {
        font-size: 0.9rem;
      }
      .card-image {
        height: 100px;
      }
    }