input[type="text"], 
input[type="number"], 
textarea {
    width: 100%;
    max-width: 400px;
    padding: 10px;
    margin: 10px 0;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 14px;
    box-sizing: border-box;
}

textarea {
    resize: none;
}

button:disabled {
    background-color: #cccccc;
    cursor: not-allowed;
}

#copyButton {
    background-color: #008cba;
}

#copyButton:hover {
    background-color: #007bb5;
}