.project-card {
      background: linear-gradient(135deg, rgba(0, 87, 128, 0.1) 0%, rgba(0, 128, 128, 0.1) 100%);
      border: 1px solid rgba(0, 128, 128, 0.2);
      transition: all 0.3s ease;
    }
    .project-card:hover {
      transform: translateY(-8px);
      background: linear-gradient(135deg, rgba(0, 87, 128, 0.2) 0%, rgba(0, 128, 128, 0.2) 100%);
      border-color: rgba(0, 128, 128, 0.4);
      box-shadow: 0 20px 40px rgba(0, 128, 128, 0.1);
    }
    .category-tag {
      background: rgba(0, 128, 128, 0.2);
      color: #008080;
      border: 1px solid rgba(0, 128, 128, 0.3);
    }
    .loading-spinner {
      border: 2px solid rgba(0, 128, 128, 0.2);
      border-top: 2px solid #008080;
      border-radius: 50%;
      width: 40px;
      height: 40px;
      animation: spin 1s linear infinite;
    }
    @keyframes spin {
      0% { transform: rotate(0deg); }
      100% { transform: rotate(360deg); }
    }