: 0 8px 24px rgba(0,0,0,0.1);
        border-color: #5856d6;
    }
    
    .app-card::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        height: 4px;
        background: linear-gradient(90deg, #5856d6, #4a90e2);
        transform: translateX(-100%);
        transition: transform 0.3s ease;
    }
    
    .app-card:hover::before {
        transform: translateX(0);
    }
    
    .app-header {
        display: flex;
        align-items: center