body {
            font-family: Arial, sans-serif;
            margin: 50px;
            background-color: #29292f;
            color: white
        }
        .container {
            max-width: 400px;
            margin: auto;
            padding: 20px;
            border: 1px solid #ccc;
            border-radius: 10px;
        }
        input {
            width: 90%;
            padding: 10px;
            margin: 15px 0;
        }
        button {
            width: 100%;
            padding: 10px;
            background-color: #28a745;
            color: white;
            border: none;
            border-radius: 5px;
            cursor: pointer;
        }
        button:hover {
            background-color: #218838;
        }
        .result {
            margin-top: 20px;
            font-size: 1.2em;
        }
        
        footer {
            margin-top: 200px;
            text-align: center;
            font-size: 20px;
        }
        footer a {
            color: white;
            text-decoration: none;
        }
        footer a:hover {
            color: rgb(38, 190, 190);
            text-decoration: underline;
        }
        footer p span {
            color: red;
        }