body {
    color: #000000;
    font-family: Arial, sans-serif;
    background-color: #f3f3f3;
    margin: 0;
    padding: 0;
    transition: background-color 0.3s, color 0.3s;
  }

  .container {
    max-width: 800px;
    margin: 0 auto;
    padding: 20px;
    background-color: #fff;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    transition: background-color 0.3s, color 0.3s;
    border-style: solid;
    border-color: #000000;
    margin-top: 20px; 
    margin-bottom: 20px;
    border-radius: 25px;
  }

  .container.dark-mode {
    border-color: #ffffff;
  }

  h1 {
    font-size: 28px;
    transition: color 0.3s;
  }

  p {
    font-size: 16px;
    transition: color 0.3s;
  }

  body.dark-mode {
    background-color: #121212;
    color: #fff;
  }

  body.dark-mode a {
    color: #bb86fc;
  }

  body.dark-mode .container {
    background-color: #292b2f;
    color: #fff;
  }

  body.dark-mode h1 {
    color: #fff;
  }

  body.dark-mode p {
    color: #fff;
  }

  form {
    display: flex;
    flex-direction: column;
    align-items: center;
  }

  label {
    font-size: 20px;
    margin-bottom: 10px;
  }

  input[type="text"] {
    font-size: 16px;
    padding: 10px;
    width: 300px;
    margin-bottom: 20px;
    border: 2px;
    border-color: #000000;
    border-style: solid;
    border-radius: 25px;
  }

  body.dark-mode input[type="text"] {
    border-color: #ffffff;
  }

  .button-container {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-bottom: 20px;
  }

  .button-container button {
    font-size: 16px;
    padding: 10px 20px;
    background-color: #4CAF50;
    border: none;
    color: white;
    text-align: center;
    text-decoration: none;
    display: inline-block;
    margin: 4px;
    cursor: pointer;
  }

  .copyico {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-bottom: 20px;
  }

  .copyico button {
    font-size: 13px;
    padding: 10px 20px;
    background-color: #4CAF50;
    border: none;
    color: white;
    text-align: center;
    text-decoration: none;
    display: inline-block;
    margin: 2px;
    cursor: pointer;
  }

  #shortened-url {
    font-size: 20px;
    margin-top: 10px;
    text-align: center;
  }

  #urlshort {
    font-size: 20px;
    margin-top: 10px;
    text-align: center;
  }

  button {
    border-radius: 25px;
  }