.mai-calculator {
    background: #f9f9f9;
    padding: 20px;
    border-radius: 10px;
    max-width: 500px;
    margin: 20px auto;
    font-family: Arial, sans-serif;
}
.mai-calculator input {
    width: 100%;
    margin-bottom: 10px;
}
.mai-calculator button {
    background: #ff6f00;
    color: white;
    padding: 10px 15px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
}
.mai-calculator h3 {
    margin-top: 20px;
}