body {
    font-family: 'Arial', sans-serif;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
    background-color: #000000;
}

.container {
    text-align: center;
    padding: 2rem;
    background-color: #0c0c0c;
    color: #fff;
    width: 90%;
    max-width: 500px;
}

.input-container {
    margin-bottom: 1.5rem;
    display: flex;
    justify-content: center;
}

#string-input {
    padding: 0.5rem;
    font-size: 1rem;
    width: 70%;
}

#submit-btn, #switch-btn {
    padding: 0.5rem 1rem;
    font-size: 1rem;
    color: #fff;
    background-color: #007BFF;
    border: none;
    cursor: pointer;
    margin-left: 0.5rem;
}

#submit-btn:hover, #switch-btn:hover {
    background-color: #0056b3;
}

#switch-btn {
    background-color: #6c757d;
    margin-top: 1rem;
}

#switch-btn:hover {
    background-color: #5a6268;
}

.output-container {
    margin-top: 1rem;
}

#output {
    background-color: #fff;
    color: black;
    padding: 0.75rem;
    border-radius: 4px;
    word-wrap: break-word;
    min-height: 25px;
}