.container {
    max-width: 600px;
    margin: 2rem auto;
    padding: 1rem;
}

.input-group {
    position: relative;
    margin-bottom: 1rem;
}

textarea {
    width: 100%;
    min-height: 100px;
    padding: 0.5rem;
    margin-bottom: 0.5rem;
    font-size: 1rem;
}

#charCounter {
    position: absolute;
    bottom: 10px;
    right: 10px;
    color: #666;
}

.error {
    color: red;
    margin: 0.5rem 0;
    min-height: 20px;
}

.output {
    margin: 1rem 0;
    padding: 1rem;
    border: 1px solid #ccc;
    min-height: 50px;
    background: #f9f9f9;
    font-size: 1.2rem;
    word-break: break-word;
}

button {
    padding: 0.5rem 1rem;
    cursor: pointer;
    margin-right: 0.5rem;
}

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