:root {
    --primary-color: #002fa7;
    --secondary-color: #f1f3f4;
    --success-color: #32b643;
    --warning-color: #ffb700;
    --error-color: #e85600;
  }
  
  body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background-color: #f8f9fa;
  }

  /* Main content */
.main-content {
    padding: 1.5rem;
    min-height: calc(100vh - 4rem);
  }
  
  /* Header navbar */
  .navbar {
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    margin-bottom: 0;
    padding: 1rem 1.5rem;
  }
  
  .navbar-brand {
    font-weight: 700;
    font-size: 1.3rem;
    text-decoration: none;
  }
  
  .navbar-brand i {
    margin-right: 0.5rem;
    font-size: 1.4rem;
  }

  /* Navigation sidebar */
.nav-sidebar {
    position: sticky;
    top: 1rem;
    height: calc(100vh - 2rem);
    overflow-y: auto;
    background: white;
    padding: 1rem 0;
    box-shadow: 0 0.05rem 0.2rem rgba(48, 55, 66, 0.15);
  }
  
  .nav-sidebar .nav {
    flex-direction: column;
    padding: 0 0.5rem;
  }
  
  .nav-sidebar .nav-item {
    margin-bottom: 0.2rem;
  }
  
  .nav-sidebar .nav-link {
    display: flex;
    align-items: center;
    padding: 0.8rem 1rem;
    color: #667189;
    text-decoration: none;
    transition: all 0.2s ease;
    font-weight: 500;
  }
  

  .nav-sidebar .nav-link.active {
    background-color: var(--primary-color);
    color: white;
    transform: translateX(2px);
  }
  
  .nav-sidebar .nav-link i {
    margin-right: 0.8rem;
    width: 1.2rem;
    font-size: 1.1rem;
  }

  /* Cards */
.card {
    box-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
    border: 1px solid rgba(0, 0, 0, 0.125);
    /*border-radius: 0.5rem;*/
    margin-bottom: 1.5rem;
  }
  
  .card-header {
    background-color: #f8f9fa;
    border-bottom: 1px solid rgba(0, 0, 0, 0.125);
    padding: 1rem 1.5rem;
  }
  
  .card-body {
    padding: 1.5rem;
  }

  /* Tables */
.table {
    margin-bottom: 0;
  }
  
  .table th {
    background-color: #f8f9fa;
    font-weight: 600;
    color: #495057;
    border-bottom: 2px solid #dee2e6;
    padding: 1rem 0.75rem;
  }
  
  .table td {
    padding: 1rem 0.75rem;
    vertical-align: middle;
  }
  
  .table-hover tbody tr:hover {
    background-color: rgba(0, 0, 0, 0.025);
  }


  /* Utilities */
.d-flex {
    display: flex;
  }
  
  .justify-between {
    justify-content: space-between;
  }
  
  .align-items-center {
    align-items: center;
  }
  
  .text-light {
    color: #f8f9fa !important;
  }
  
  .mb-0 {
    margin-bottom: 0 !important;
  }
  
  .mb-2 {
    margin-bottom: 1rem !important;
  }
  
  .mr-2 {
    margin-right: 1rem !important;
  }
  
  .col-ml-auto {
    margin-left: auto;
  }