@font-face {
    font-family: inter;
    src: url(Inter_18pt-Regular.ttf);
  }

  .fade-out {
    opacity: 0;
    transition: opacity 0.5s ease-in-out;
  }

  .fade-in {
    opacity: 0;
    animation: fadeIn 1s forwards;
  }

@keyframes fadeIn {
    to {
        opacity: 1;
    }
}

.container {
    display: flex; 
    justify-content: space-between; 
    align-items: center; 
    width: 100%;
    margin-bottom: 70px;
}

.title-container {
  display: flex; 
  justify-content: center;
  align-items: center; 
  width: 100%;
}
  
  .shift-cipher-title {
    font-family: inter;
    font-size: 100px;
    text-align: center;
    font-weight: bold;
  }

  .devs-title {
    background-color: transparent; 
    border: none;
    color: black;
    font-family: inter;
    font-size: 20px;
    text-align: right;
    font-weight: normal;
    margin-right: 30px;
    text-decoration: underline;
    transition: opacity 0.3s;
    cursor: pointer; 
  }

  .devs-title:hover {
    opacity: 0.7;
  }

  .discrete-math-title {
    font-family: inter;
    font-size: 20px;
    text-align: left;
    font-weight: normal;
    margin-left: 30px;
  }

  .button-container {
    display: flex;               
    justify-content: center;     
    align-items: center;   
  }            

  .get-started-button{
    background-color: white;
    border-color: black;
    color: black;
    border-radius: 18px;
    font-family: inter;
    font-size: 20px;
    text-align: center;
    border: 2px solid black; 
    padding: 10px 20px; 
    cursor: pointer; 
    transition: transform 0.5s ease-in-out, background-color 0.5s ease-in-out, color 0.5s ease-in-out;
    margin-top: 30px;
  }

  .get-started-button:hover {
    background-color: black;
    color: white;
    transform: scale(1.09); 
  }

  .about-text {
    font-family: inter;
    font-size: 12px;
    text-align: center;
    font-weight: normal;
    margin-top: -60px;
    width: 50%; 
    margin-left: auto; 
    margin-right: auto;
  }

  .name-title {
    font-family: inter;
    font-size: 60px;
    text-align: center;
    font-weight: bold;
    margin: 0;
  }

  .name-subtitle{
    font-family: inter;
    font-size: 20px;
    text-align: center;
    font-weight: normal;
    margin-bottom: 20px;
  }

  .button-container {
    display: flex; 
    justify-content: center; 
    margin-top: 0px; 
}

  .action-button {
    background-color: white;
    border-color: black;
    color: black;
    border-radius: 44px;
    font-family: inter;
    font-size: 40px;
    text-align: center;
    border: 2px solid black; 
    padding: 15px 40px; 
    cursor: pointer; 
    font-weight: bold;
    transition: transform 0.5s ease-in-out, background-color 0.5s ease-in-out, color 0.5s ease-in-out;
    margin-top: 30px;
    margin: 0 10px;
  }

  .action-button:hover {
    background-color: black;
    color: white;
    transform: scale(1.1); 
  }

  .instruction-text{
    font-family: inter;
    font-size: 20px;
    text-align: center;
    font-weight: normal;
    margin-top: 50px;
    margin-bottom: 0px;
  }

  input[type="text"] {
    font-family: inter;
    font-size: 20px;
    text-align: center;
    font-weight: normal;
    width: 300px; 
    padding: 10px 10px; 
    border: 1px solid #ccc; 
    border-radius: 4px; 
    text-align: center;
    display: block;
    margin: auto;
    margin-top: 20px;
  }

  input[type="number"] {
    font-family: inter;
    font-size: 20px;
    text-align: center;
    font-weight: normal;
    width: 300px; 
    padding: 10px 10px; 
    border: 1px solid #ccc; 
    border-radius: 4px; 
    text-align: center;
    display: block;
    margin: auto;
    margin-top: 20px;
  }

  .input-text-form{
    font-family: inter;
    font-size: 20px;
  }

  .integer-form{
    font-family: inter;
    font-size: 20px;
  }

  .display-message{
    font-family: inter;
    font-size: 25px;
    text-align: center;
    font-weight: bold;
    margin-top: 20px;
    margin-bottom: 0px;
    color: black;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    margin-bottom: 50px;
    overflow-wrap: break-word;
  }
  
  .shift-key {
    font-family: inter;
    font-size: 30px;
    text-align: center;
    font-weight: bold;
    margin: 15px;
    margin-bottom: 60px;
  }