@font-face {
    font-family: 'internal';
    src: url(./CalculatorMonoUI.ttf);
}

body {
    padding: 0;
    margin: 0;
    font-family: 'internal', Arial, Tahoma;
  }
  
  header {
    display: flex;
    align-items: center;
    background-color: lightgray;
    margin-top: 0;
    margin-bottom: 20px;
    padding: 10px 0;
  }
  
  header img {
    height: 50px;
    width: 50px;
    margin: 0 20px;
  }
  
  header a {
    color: inherit;
    text-decoration: none;
  }
  
  button {
    font-family: 'internal', Arial, Tahoma;
    margin: 15px 0;
    padding: 8px;
    font-size: 15px;
  }
  
  
  #function-template {
    display: none
  }
  
  #canvas {
    width: 45%;
    height: 45%;
  }
  
  .title {
    font-size: 25px;
  }
  
  .subtitle {
    font-size: 10px;
  }
  
  .tab {
    margin: 0 20px;
    cursor: pointer;
  }
  
  .calculator {
    display: flex;
    margin: auto;
    justify-content: center;
  }
  
  .about-page {
    margin: 50px;
  }
  
  .controls {
    display: flex;
    flex-direction: column;
    width: 500px;
    align-items: center;
  }
  
  .navigator {
    display: flex;
    justify-content: center;
    margin-bottom: 20px;
    font-size: 22px;
  }
  
  .navigator > div {
    size: 15px;
    margin: 0 12px;
    background-color: whitesmoke;
    padding: 5px;
    border-radius: 10%;
    box-shadow: 1px 1px 1px 1px lightgray;
    cursor: pointer;
  }
  
  .functions {
    display: flex;
    flex-direction: column;
    height: 200px;
    overflow-y: auto;
    width: 400px;
    align-items: center;
  }
  
  .function-tab {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
  }
  
  .delete {
    cursor: pointer;
    color: grey;
    margin-left: 5px;
  }
  
  .function-tab input {
    font-family: 'internal', Arial, Tahoma;
    padding: 5px;
    margin: 10px 0;
    font-size: 15px;
    width: 160px;
  }
  
  .function-tab select {
    font-family: 'internal', Arial, Tahoma;
    padding: 5px 0;
    margin: 10px 0;
    font-size: 15px;
  }
  
  .window {
    margin: 30px 0;
    text-align: center;
  }
  
  .window input {
    font-family: 'internal', Arial, Tahoma;
    width: 80px;
    margin: 10px;
  }
  
  .table-tab {
    text-align: center;
  }
  
  .calculate-tab input {
    font-family: 'internal', Arial, Tahoma;
    margin: 10px 0;
    padding: 5px;
  }
  
  .calculate-tab select {
    font-family: 'internal', Arial, Tahoma;
    width: 80px;
    margin: 5px;
    padding: 5px;
  }
  
  .warning {
    color: red;
  }
  
  table {
    margin-top: 30px;
    width: 300px;
    border-collapse: collapse;
    border: 1px solid black;
  }
  
  th {
    border: 1px solid black;
  }
  
  td {
    border: 1px solid black;
    border-left: 1px solid black;
  }