/* General */
body {
    background-color: #f4f6f9;
    font-family: 'Segoe UI', sans-serif;
    margin: 0;
    padding: 0;
  }
  
  /* Card center */
  .container {
    max-width: 100%;
    padding: 20px;
  }
  
  .card {
    border-radius: 1rem;
    border: none;
  }
  
  /* Form elements */
  label {
    font-weight: 600;
  }
  
  input[type="number"],
  select,
  button {
    border-radius: 0.5rem !important;
  }
  
  button {
    font-weight: 600;
  }
  
  /* Alerts */
  .alert {
    border-radius: 0.75rem;
  }
  
  /* Responsive */
  @media (max-width: 768px) {
    h2, h3 {
      font-size: 1.5rem;
    }
    .btn {
      font-size: 1rem;
    }
  }