form {
    background: #f9fafb;
    border: 1px solid #ddd;
    border-radius: 8px;
    font-family: sans-serif;
    margin: 20px auto;
    max-width: 400px;
    padding: 30px;
    button {
        background: #2563eb;
        border: none;
        border-radius: 6px;
        color: white;
        cursor: pointer;
        display: block;
        font-weight: bold;
        margin-top: 16px;
        padding: 10px 16px;
        width: 100%;
    }
    h1 {
        font-size: 24px;
        font-weight: bold;
        margin-bottom: 24px;
        text-align: center;
    }
    label {
        display: block;
        font-weight: 500;
        margin-top: 12px;
    }
    output {
        background: white;
        border: 1px solid #ddd;
        border-radius: 6px;
        display: block;
        font-size: 24px;
        font-weight: bold;
        margin-top: 12px;
        padding: 10px;
        text-align: center;
    }
    select, input {
        margin-right: 8px;
        transform: scale(1.2);
        vertical-align: middle;
        &[type="checkbox"] {
            display: inline-block;
            margin-right: 8px;
            & + label {
                display: block;
                margin-bottom: 6px;
            }
        }
        & + label {
            display: inline-block;
            font-weight: normal;
            margin-right: 16px;
        }
    }
}