body {
    font-family: Arial, sans-serif;
    text-align: center;
    margin: 40px;
    background-color: #f2f2f2;
  }
  
  .container {
    border: 1px solid #ccc;
    padding: 20px;
    max-width: 400px;
    margin: 0 auto;
    background-color: #fff;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    border-radius: 10px;
  }
  
  input {
    padding: 10px;
    margin: 5px;
    border: 1px solid #ccc;
    border-radius: 5px;
    width: 80px;
    text-align: center;
  }
  
  select {
    padding: 10px;
    margin: 5px;
    border: 1px solid #ccc;
    border-radius: 5px;
    background-color: #fff;
    color: #007bff;
    cursor: pointer;
  }
  
  select:focus {
    outline: none;
  }
  
  h1 {
    margin-bottom: 20px;
    color: #007bff;
  }
  
  .input-container {
    margin-bottom: 20px;
  }
  
  .input-container label {
    display: block;
    font-size: 18px;
    font-weight: bold;
    color: #007bff;
    margin-bottom: 5px;
  }
  
  .output-container {
    border-top: 1px solid #ccc;
    padding-top: 15px;
  }
  
  #result {
    font-size: 24px;
    font-weight: bold;
    color: #007bff;
  }
  
  @keyframes fadeIn {
    from {
      opacity: 0;
    }
    to {
      opacity: 1;
    }
  }
  
  .container {
    animation: fadeIn 0.5s ease-in-out;
  }

button {
    padding: 10px 20px;
    margin: 5px;
    border: none;
    border-radius: 5px;
    color: #fff;
    cursor: pointer;
    background-image: linear-gradient(135deg, #007bff, #0056b3);
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
    transition: transform 0.2s, box-shadow 0.2s;
  }
  
  button:hover {
    transform: scale(1.05);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
  }
  .name {
    font-size: 15px;
    font-weight: bold;
    color: #ff3c00;
    margin-top: 20px;
  }