#eco-friendly-calculator {
    margin: 20px;
    padding: 20px;
    background-color: #f4f4f9;
    border-radius: 8px;
}

#eco-friendly-calculator h3 {
    font-size: 24px;
    margin-bottom: 15px;
}

.form-section {
    margin-bottom: 15px;
}

.form-section label {
    font-weight: bold;
}

.form-section input {
    width: 100%;
    padding: 10px;
    font-size: 16px;
}

#eco-results {
    margin-top: 20px;
    font-size: 18px;
    font-weight: bold;
    color: green;
}

button {
    padding: 10px 20px;
    background-color: #4CAF50;
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
}

button:hover {
    background-color: #45a049;
}