.sales-price-calculator{font-family:Arial,sans-serif;background-color:#f9f9f9;padding:25px;border-radius:8px;box-shadow:0 4px 8px rgba(0,0,0,.1);max-width:450px;margin:20px auto;border:1px solid #e0e0e0}.sales-price-calculator h2{text-align:center;color:#333;margin-top:0;margin-bottom:20px;font-size:1.8em}.sales-price-calculator .input-group{margin-bottom:20px}.sales-price-calculator label{display:block;margin-bottom:8px;color:#555;font-weight:700}.sales-price-calculator input[type=number],.sales-price-calculator input[type=text]{width:100%;padding:12px;border:1px solid #ccc;border-radius:4px;box-sizing:border-box;font-size:1em}.sales-price-calculator input[type=number]:focus,.sales-price-calculator input[type=text]:focus{border-color:#007bff;outline:none}.sales-price-calculator .input-with-symbol{position:relative}.sales-price-calculator .input-with-symbol input{padding-left:25px}.sales-price-calculator .input-with-symbol .currency-symbol,.sales-price-calculator .input-with-symbol .percentage-symbol{position:absolute;left:10px;top:50%;transform:translateY(-50%);color:#888;pointer-events:none}.sales-price-calculator .input-with-symbol .percentage-symbol{left:auto;right:15px}.sales-price-calculator .input-with-symbol input[type=number].margin-input{padding-right:30px;padding-left:12px}.sales-price-calculator button{background-color:#007bff;color:#fff;padding:12px 20px;border:none;border-radius:4px;cursor:pointer;font-size:1.1em;width:100%;transition:background-color .3s ease}.sales-price-calculator button:hover{background-color:#0056b3}.sales-price-calculator .results{margin-top:25px;padding-top:20px;border-top:1px solid #eee}.sales-price-calculator .result-item{margin-bottom:15px;font-size:1.1em}.sales-price-calculator .result-item strong{color:#333}.sales-price-calculator .result-item span{color:#007bff;font-weight:700}.sales-price-calculator .error-messages{color:red;font-size:.9em;margin-bottom:15px;padding:10px;background-color:#ffebee;border:1px solid #f44336;border-radius:4px}.sales-price-calculator .error-messages p{margin:5px 0}