#ecologiko-calculator{max-width:600px;margin:0 auto;padding:20px;background-color:#f9f9f9;border-radius:8px;box-shadow:0 0 10px rgba(0,0,0,.1)}#ecologiko-calculator h2{text-align:center;margin-bottom:20px}#calculator-form div{margin-bottom:15px}#calculator-form label{display:block;margin-bottom:5px}#calculator-form select{width:100%;padding:8px;border-radius:4px;border:1px solid #ccc}#calculate-price{display:block;width:100%;padding:10px;background-color:#4caf50;color:#fff;border:none;border-radius:4px;cursor:pointer}#calculate-price:hover{background-color:#45a049}#total-price{text-align:center;margin-top:20px;font-size:1.2em}