body { font-family: 'Inter', sans-serif; background-color: #f4f7f6; }
        .card { border: none; border-radius: 15px; box-shadow: 0 4px 20px rgba(0,0,0,0.05); }
        .nav-link { color: #6c757d; font-weight: 500; }
        .nav-link.active { color: #0d6efd !important; font-weight: 700; border-bottom: 3px solid #0d6efd; }
        .stat-card { transition: transform 0.2s; border-left: 5px solid #0d6efd; }
        .stat-card:hover { transform: translateY(-5px); }
        .progress { height: 8px; border-radius: 10px; }
        .avatar-circle { width: 45px; height: 45px; background: #0d6efd; color: white; display: flex; align-items: center; justify-content: center; border-radius: 50%; font-weight: bold; }
        .pagination .page-link { border: none; border-radius: 8px; margin: 0 2px; color: #444; }
        .pagination .active .page-link { background-color: #0d6efd; color: white; }