Components
Header
Header — a section or page heading rendered in the theme's display type roles. Use `variant` to set the visual level: `display` for a hero or page title, `headline` for a major section, `title` for a card or subsection (the default), and `subtitle` for a secondary line paired with a title. The variant also picks a sensible heading element (h1–h4); override it with `as` (h1–h6) to keep the document outline correct when the visual size and the semantic level differ.