.world-item,
    .ontology-item {
        transition: all 0.2s;
        cursor: pointer;
    }

    .world-item:hover,
    .ontology-item:hover {
        background-color: #f8f9fa;
        border-color: #007bff !important;
    }

    .world-item .btn,
    .ontology-item .btn {
        transition: all 0.2s;
    }

    .quick-start-card {
        border-left: 4px solid #0d6efd;
        transition: all 0.2s;
    }

    .quick-start-card:hover {
        box-shadow: 0 4px 12px rgba(0,0,0,0.1);
        transform: translateY(-2px);
    }