Every name here is kept stable, so a rule you write keeps working after a release. Full reference
[data-portal-sidebar]- The sidebar card
[data-portal-item="…"]- A part of the sidebar: tagline, metrics, buttons, description, social_links or footer
[data-portal-locale-switcher]- The list of languages under the card
[data-portal-content]- The content card beside it: the plans, the checkout and the member screens
[data-portal-header]- The Share and Login buttons
[data-portal-announcement]- The announcement strip
[data-portal-plans-heading]- The heading and subtitle over the plans
[data-portal-social-proof]- The joined-this-week line
[data-portal-plan-list]- The list of plan cards
[data-portal-plan]- A plan card
[data-portal-featured]- The featured plan card
[data-portal-block="…"]- A block under the plans: perks, about, faq, video, gallery or testimonials
.portal-card- Both cards
.portal-button- Every button members press
--portal-accent, --portal-accent-foreground- Your accent and the text drawn on it
--portal-accent-2, --portal-accent-2-foreground- The second accent and the text drawn on it
--portal-bg, --portal-surface- The page behind the cards, and the cards
--portal-heading, --portal-text, --portal-muted- Headings, body text and captions
--portal-faint, --portal-text-strong- The lightest captions and the strongest body text
--portal-line, --portal-line-strong- Hairlines and borders
--portal-well, --portal-well-strong- Inset panels and chips, at rest and pressed
--portal-accent-ink, --portal-accent-soft, --portal-accent-line- The accent as text, as a tint and as a line
--portal-accent-2-ink, --portal-accent-2-soft, --portal-accent-2-line- The second accent as text, as a tint and as a line
--portal-radius-card, --portal-button-radius- The corner radius of the cards and of the buttons
--portal-shadow-card, --portal-shadow-float, --portal-shadow-soft- The three shadow depths
--font-condensed, --font-sans- The display face and the body face
--portal-heading-case, --portal-button-case- The case of headings and of button labels
