body {
      background-color: #1f2b3a;
      color: white;
      font-family: 'Segoe UI', sans-serif;
    }

    h1 span {
      color: #00d9ff;
    }

    .navbar {
      background-color: #2b3d52;
    }

    .navbar-brand,
    .nav-link {
      color: white !important;
    }

    .navbar-brand span {
      color: #00d9ff;
    }

    .card {
      background-color: #2e3d54;
      color: white;
      border: none;
      border-radius: 15px;
      box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
      transition: transform 0.3s ease, box-shadow 0.3s ease;
    }

    .card:hover {
      transform: translateY(-8px);
      box-shadow: 0 6px 20px rgba(0, 217, 255, 0.4);
    }

    .btn-custom {
      background-color: #00d9ff;
      border: none;
      color: white;
      font-weight: 500;
    }

    .btn-custom:hover {
      background-color: #00b3d3;
    }

    .fade-in {
      opacity: 0;
      transform: translateY(20px);
      animation: fadeIn 1s ease-out forwards;
    }

    .fade-in:nth-child(1) { animation-delay: 0.2s; }
    .fade-in:nth-child(2) { animation-delay: 0.4s; }
    .fade-in:nth-child(3) { animation-delay: 0.6s; }

    @keyframes fadeIn {
      to {
        opacity: 1;
        transform: translateY(0);
      }
    }

    footer {
      background-color: #2b3d52;
      padding: 20px 0;
      color: #ccc;
      text-align: center;
      margin-top: 50px;
    }