body {
    font-family: 'Avenir', 'Avenir Next', 'Helvetica Neue', 'Segoe UI', 'Trebuchet MS', sans-serif;
    font-weight: 600;
    margin: 0;
    padding: 20px;
    background-color: #f4f4f4;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    background: #fff;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

h1 {
    text-align: center;
    color: #333;
    font-weight: 500;
    letter-spacing: 0.5px;
}

h3 {
    text-align: center;
    color: #666;
    font-weight: 400;
    font-size: 16px;
    margin-top: 30px;
    letter-spacing: 0.3px;
}


.preview {
    margin-top: 20px;
    padding: 20px;
    border: 1px solid #ccc;
    border-radius: 4px;
    background-color: #fafafa;
    white-space: pre-wrap; /* Preserve line breaks */
    word-wrap: break-word; /* Break long words */
    font-size: 20px;
    line-height: 1.6;
    color: #333;
    font-weight: 400;
    letter-spacing: 0.2px;
}

@media (max-width: 600px) {
    .container {
        padding: 10px;
    }

    .text-area {
        height: 150px;
    }
    
    .preview {
        font-size: 16px;
        line-height: 1.5;
        padding: 15px;
    }
}