.calculator-position {
    width: 220px;
    border: 2px solid teal;
    border-radius: 10px;
    padding: 10px;
    position: relative;
  }
  
  .calculator-position .header {
    background: teal;
    color: white;
    text-align: right;
    padding: 5px;
    font-weight: bold;
  }
  
  .calculator-position .screen-wrapper {
    display: flex;
    flex-direction: column;
    align-items: flex-end; /* вирівнює .sub-screen по правому краю */
    margin: 10px 0;
  }
  
  .calculator-position .screen {
    border: 2px solid teal;
    padding: 10px;
    text-align: right;
    font-size: 18px;
    width: 100%;
    box-sizing: border-box;
  }
  
  .calculator-position .sub-screen {
    background: teal;
    width: 80px;
    height: 30px;
    margin-top: 5px;
  }
  
  
  .calculator-position .buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 20px;
  }
  
  .calculator-position .btn {
    width: 40px;
    height: 40px;
    border: 2px solid teal;
    border-radius: 8px;
    text-align: center;
    line-height: 40px;
    font-weight: bold;
  }