.lec-container {
    max-width: 400px;
    margin: 20px auto;
    padding: 20px;
    border: 1px solid #ddd;
    border-radius: 5px;
    background: #f9f9f9;
    text-align: center;
}

.lec-form input, .lec-form select, .lec-form button {
    width: 100%;
    padding: 10px;
    margin: 10px 0;
    border: 1px solid #ddd;
    border-radius: 5px;
}

.lec-form button {
    background: #28a745;
    color: #fff;
    cursor: pointer;
}

#emi_result p {
    font-weight: bold;
}