@import url(https://fonts.googleapis.com/css2?family=Open+Sans:ital,wght@0,300..800;1,300..800&display=swap);

body,
fieldset {
    display: flex;
    flex-direction: column
}

.foguetinho,
body,
fieldset {
    display: flex
}

* {
    padding: 0;
    margin: 0;
    box-sizing: border-box
}

:root {
    --background: #111;
    --botao: #5f8311;
    --hover: #648b0f;
    --fieldset: #1B2838; 
    --fonte: #fff
}

body {
    align-items: center;
    width: 100%;
    margin: 1rem 0;
    background-color: var(--background);
    font-family: 'Open Sans', sans-serif
}

body,
button {
    color: var(--fonte)
}

button,
hr {
    border: none;
    margin: 1rem 0
}

button,
fieldset {
    box-shadow: 0 2px 8px -2px rgba(0, 0, 0, .15)
}

hr {
    border-top: 1px solid var(--background)
}

button,
label {
    cursor: pointer
}

.foguetinho {
    width: 70%;
    flex-direction: column;
    gap: 1rem;
    padding: 1rem
}

h2{
    margin-top: -1rem;
}

button {
    background-color: var(--botao);
    width: max-content;
    padding: .5rem;
    border-radius: .25rem
}

button:hover {
    background-color: var(--hover)
}

fieldset {
    border: none;
    border-radius: .25rem;
    background-color: var(--fieldset);
    padding: 1rem 2rem;
    line-height: 1.8rem
}

input[type=radio] {
    margin-right: .5rem;
    cursor: pointer;
    vertical-align: middle;
    width: 1.25rem;
    height: 1.25rem;
    user-select: none;
    aspect-ratio: 1/1
}

@media (max-width:768px) {
    h2{
        text-align: center;
    }

    .foguetinho {
        width: 95%;
        padding: 1rem 0
    }

    fieldset {
        padding: 1rem
    }
}