form {
    --f-bg: #ffffff;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
    max-width: 640px;
    margin: 100px auto;
    border-radius: 40px;
    padding: 40px;
    box-shadow: 0 30px 60px rgba(0, 0, 0, .05);
    position: relative;
}

form .previous {
    position: absolute;
    bottom: calc(100% + 20px);
    left: 0;
}

form > .title {
    text-align: center;
}

form > .description {
    text-align: center;
}

form .fields.row .field {
    width: 100%;
}

@media (max-width: 900px) {

    form {
        --f-bg: var(--color-60);
        justify-content: center;
        margin: 0;
        width: 100%;
        min-height: 100vh;
        border-radius: 0;
        padding: 20px;
        padding-top: 100px;
        max-width: none;
    }

    form .previous {
        top: 20px;
        left: 20px;
        padding: 20px;
    }

}