.loan-calculator {max-width: 500px;margin: 40px auto;padding: 20px;background: #fff;border-radius: 12px;box-shadow: 0 0 10px rgba(0,0,0,.1);font-family: Arial,sans-serif;}
.loan-calculator h4 {margin-bottom: 20px;text-align: center;color: #4caf50;}
.loan-calculator label {display: block;margin-top: 10px;font-weight: bold;}
.loan-calculator input, .loan-calculator select {width: 100%;padding: 8px;margin-top: 4px;border-radius: 5px;border: 1px solid #ccc;}
.button-row {display: flex;justify-content: center;margin-top: 20px;gap: 12px;}
.green-btn {background-color: #4caf50;color: white;padding: 10px 18px;border: none;border-radius: 6px;cursor: pointer;}
.gray-btn {background-color: #a6acaf;color: white;padding: 10px 18px;border: none;border-radius: 6px;cursor: pointer;}
.green-btn:hover {background-color: #45a049;}
.gray-btn:hover {background-color: #909497;}
#loanResult {margin-top: 20px;font-size: 14px;background: #f9f9f9;padding: 10px;border-radius: 8px;}
#chartContainer {margin-top: 20px;text-align: center;}