.shell {
    width: min(45rem, 100%);
    background: var(--color-surface-strong);
    border-radius: 1.25rem;
    padding: 2.5rem 2.25rem;
    box-shadow: 0 1.5rem 3.75rem rgba(20, 20, 20, 0.12);
    border: 1px solid rgba(20, 20, 20, 0.08);
}