.nav-pills .nav-link {
      color: #495057;
      text-align: left;
      padding: 12px 20px;
      font-weight: 500;
      border-radius: 8px;
      margin-bottom: 6px;
      transition: all 0.2s ease-in-out;
    }

    .nav-pills .nav-link:hover {
      background-color: #f1f5f9;
      color: #0d6efd;
    }

    .nav-pills .nav-link.active {
      background-color: #0d6efd;
      color: #ffffff;
      box-shadow: 0 4px 10px rgba(13, 110, 253, 0.25);
    }
.stat-card{transition: transform 0.3s ease;}
.stat-card:hover {transform: translateY(-5px);}