body {
      font-family: 'Open Sans', sans-serif;
      background: linear-gradient(to right, #0f2027, #203a43, #2c5364);
      color: #fff;
      margin: 0;
      padding: 0;
    }

    .header {
      background-color: rgba(0, 0, 0, 0.6);
      padding: 1rem 0;
    }

    .container {
      width: 90%;
      max-width: 960px;
      margin: 0 auto;
    }

    .logo {
      font-size: 1.8rem;
      font-weight: bold;
      margin: 0;
    }

    .nav {
      margin-top: 0.5rem;
    }

    .nav a {
      color: #fff;
      text-decoration: none;
      margin-right: 1.5rem;
      font-weight: 500;
      transition: color 0.3s ease;
    }

    .nav a:hover,
    .nav a.active {
      color: #00bfff;
    }

    .main-section {
      padding: 3rem 0;
    }

    .section-title {
      font-size: 2.2rem;
      margin-bottom: 0.5rem;
      text-align: center;
    }

    .section-subtitle {
      text-align: center;
      margin-bottom: 2rem;
      font-size: 1.1rem;
      color: #ddd;
    }

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

    .project-card {
      background: rgba(255, 255, 255, 0.08);
      backdrop-filter: blur(8px);
      border-radius: 12px;
      padding: 1.5rem;
      transition: transform 0.3s ease, box-shadow 0.3s ease;
    }

    .project-card:hover {
      transform: translateY(-5px);
      box-shadow: 0 8px 24px rgba(0, 191, 255, 0.2);
    }

    .project-title {
      font-size: 1.3rem;
      margin-bottom: 0.5rem;
      color: #00bfff;
    }

    .project-desc {
      font-size: 1rem;
      color: #ccc;
    }

    .footer {
      text-align: center;
      padding: 1rem;
      background: rgba(0, 0, 0, 0.4);
      margin-top: 2rem;
      font-size: 0.9rem;
    }