/* Children one below another, evenly spaced. */
.stack {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.stack--sm {
    gap: var(--spacing-sm);
}

.stack--lg {
    gap: var(--spacing-lg);
}

.stack--xl {
    gap: var(--spacing-2xl);
}