body {
    background: #f5f5f5;
    font-family: Arial, sans-serif;
}

.container {
    width: 400px;
    padding: 20px;
    margin: 50px auto;
    background: white;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    text-align: center;
}

input, select {
    width: 100%;
    margin: 10px 0;
    padding: 8px;
}

button {
    background: #007bff;
    border: none;
    padding: 10px;
    color: white;
    width: 100%;
    cursor: pointer;
    border-radius: 6px;
}

button:hover {
    background: #0056cc;
}

#convertedContainer {
    margin-top: 20px;
}

#convertedPreview {
    max-width: 100%;
    max-height: 300px;
    border: 1px solid #ccc;
    border-radius: 6px;
    display: block;
    margin: 10px auto;
}

#downloadLink {
    display: inline-block;
    margin-top: 10px;
    padding: 8px 12px;
    background: #28a745;
    color: white;
    border-radius: 6px;
    text-decoration: none;
}

#downloadLink:hover {
    background: #218838;
}