body {
    font-family: 'JetBrains Mono', 'Courier New', monospace;
    -webkit-font-smoothing: antialiased;
}
.main-container {
    width: 21cm;
    height: 29.7cm;
    margin: 20px auto;
    padding: 0.5cm 1cm;
    background-color: #fdfdfd;
    box-shadow: 0 0 10px rgba(0,0,0,0.05);
    border: 1px solid #eee;
  }