1. Default — section accent markers, theme card tooltip
Pulsing markers should use the section accent color; click one — the tooltip surface should follow the theme card variant 1 colors and its text should inherit that surface color.
2. Dark section — heading + markers track the dark palette
On the dark section the heading and this intro should use the dark-section text color, and the markers should use the dark-section accent color.
3. Custom — ring markers, custom tooltip colors, 16:9, contained
Markers should be rings in dark red; the tooltip should have a dark background with light text; the image is forced to 16:9 and the module is contained to a narrower width.
4. Animation — module slides up on scroll, numbered markers
Scroll into view: the whole module should slide up once with the theme animation duration and easing. Without JavaScript the module simply stays visible; reduced motion is respected.