body {
     font-family: 'Arial', sans-serif;
     background-color: #F3FDF7;
     text-align: center;
     padding-top: 50px;
}
 h1 {
     color: #4CAF50;
}
 form {
     margin-bottom: 20px;
}
 label {
     display: block;
     margin-bottom: 10px;
     color: #4CAF50;
     font-weight: bold;
}
 input[type="text"] {
     padding: 5px;
     border-radius: 4px;
     border: 1px solid #ccc;
     width: 200px;
}
 button[type="submit"] {
     background-color: #4CAF50;
     color: white;
     padding: 8px 12px;
     border: none;
     border-radius: 4px;
     cursor: pointer;
}
 button[type="submit"]:hover {
     background-color: #45a049;
}
 table {
     margin: 0 auto;
     border-collapse: collapse;
     width: 80%;
     background-color: white;
}
 th, td {
     border: 1px solid black;
     padding: 8px;
}
 #result {
     margin-top: 20px;
}
 .loader {
     margin: auto;
     border: 20px solid #EAF0F6;
     border-radius: 50%;
     border-top: 20px solid #4CAF50;
     width: 100px;
     height: 100px;
     animation: spinner 4s linear infinite;
}
 @keyframes spinner {
     0% {
         transform: rotate(0deg);
    }
     100% {
         transform: rotate(360deg);
    }
}
/* Media queries for responsive layout */
 @media only screen and (max-width: 600px) {
     h1 {
         font-size: 28px;
    }
     input[type="text"] {
         width: 80%;
         max-width: 300px;
    }
     button[type="submit"] {
         margin-top: 15px;
         width: 80%;
         max-width: 300px;
    }
     #result {
         font-size: 20px;
    }
}