body {
font-family: Arial, sans-serif;
background-color: #f4f4f4;
color: #333;
margin: 0;
padding: 20px;
}

#container {
max-width: 900px;
margin: 0 auto;
background: #fff;
padding: 20px;
border: 1px solid #ccc;
}

.tool-section {
border: 1px solid #ddd;
padding: 15px;
margin-bottom: 20px;
background: #fafafa;
}

button {
padding: 5px 10px;
margin-top: 10px;
cursor: pointer;
}

input[type="text"] {
padding: 4px;
margin-right: 5px;
}

input[type="file"] {
display: block;
margin-bottom: 10px;
}