body {
      font-family: 'Inter', sans-serif;
      background-color: #f5f7fb;

    }

    .sidebar {
      width: 260px;
      min-height: 100vh;
      background-color: #0f172a;
    }

    .sidebar .nav-link {
      color: #cbd5f5;
      padding: 0.75rem 1rem;
      border-radius: 8px;
      margin-bottom: 0.25rem;
    }

    .sidebar .nav-link:hover,
    .sidebar .nav-link.active {
      background-color: #1e293b;
      color: #ffffff;
    }

    .sidebar .nav-link i {
      margin-right: 0.75rem;
    }

    .content {
      flex-grow: 1;
    }

    .header {
      background-color: #ffffff;
      border-bottom: 1px solid #e5e7eb;
      height: 64px;
    }


    .login-card {
      width: 100%;
      max-width: 420px;
      border-radius: 16px;
      box-shadow: 0 20px 40px rgba(0,0,0,0.3);
    }

    .login-card .card-header {
      background-color: transparent;
      border-bottom: none;
      text-align: center;
      padding-top: 2rem;
    }

    .login-card .card-header h1 {
      font-size: 1.5rem;
      font-weight: 700;
    }

    .login-card .card-body {
      padding: 2rem;
    }

    .form-control {
      border-radius: 10px;
      padding: 0.75rem 1rem;
    }

    .btn-primary {
      background-color: #2563eb;
      border: none;
      border-radius: 10px;

    }

    .btn-primary:hover {
      background-color: #1e40af;
    }

    .brand {
      font-weight: 700;
      letter-spacing: 0.05em;
      color: #2563eb;
    }

    .login-footer {
      font-size: 0.875rem;
      color: #6b7280;
      text-align: center;
      margin-top: 1rem;
    }


    footer {
      font-size: 0.875rem;
      color: #6b7280;
      border-top: 1px solid #e5e7eb;
    }