#colc-calculator {
    max-width: 600px;
    margin: 0 auto;
    padding: 20px;
    border: 1px solid #ccc;
    border-radius: 10px;
    background-color: #f9f9f9;
}

#colc-calculator h2 {
    text-align: center;
}

#colc-calculator label {
    display: block;
    margin: 10px 0 5px;
}

#colc-calculator input {
    width: calc(100% - 22px);
    padding: 10px;
    margin-bottom: 15px;
}

#colc-calculator button {
    width: 100%;
    padding: 10px;
    background-color: #0073aa;
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
}

#colc-calculator button:hover {
    background-color: #005177;
}

#colc-results {
    margin-top: 20px;
    padding: 10px;
    border: 1px solid #0073aa;
    border-radius: 5px;
}