body {
    font-family: Arial, sans-serif;
    background-color: #f7f9fc;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
}

.container {
    background-color: #fff;
    border-radius: 10px;
    box-shadow: 0px 0px 20px rgba(0, 0, 0, 0.1);
    padding: 30px;
    width: 300px;
    text-align: center;
}

h1 {
    color: #333;
    font-size: 24px;
}

.form-group {
    margin-bottom: 15px;
}

label {
    display: block;
    margin-bottom: 5px;
    font-weight: bold;
}

select, button {
    width: 100%;
    padding: 10px;
    margin-top: 5px;
}

button {
    background-color: #28a745;
    color: #fff;
    border: none;
    border-radius: 5px;
    cursor: pointer;
}

button:hover {
    background-color: #218838;
}

#result {
    margin-top: 20px;
    font-size: 18px;
    font-weight: bold;
    color: #333;
}