/** The custom property every block gap on a catalogue page reads. */
export declare const BLOCK_GAP_VAR = "--stapel-block-gap";
/** Its coarse-pointer / narrow-window twin. */
export declare const BLOCK_GAP_COMPACT_VAR = "--stapel-block-gap-compact";
/** The class the rhythm's rules are hung on. */
export declare const BLOCK_RHYTHM_CLASS = "stapel-block-rhythm";
/** The `href` the hoisted rhythm sheet is deduplicated by. */
export declare const BLOCK_RHYTHM_STYLE_HREF = "stapel-block-rhythm";
/** Where a page's block gap comes from — see `CategoryPageProps.blockRhythm`. */
export type BlockRhythm = "token" | "legacy";
/**
 * The rhythm's rule set.
 *
 * Three rules, and the third is half of the fix: `margin-block: 0` on every
 * direct child. A gap only governs the space a container puts BETWEEN its
 * children — a block that also carries its own top or bottom margin adds to
 * it, and the spacing stops being one number. That is how a page ends up with
 * four different distances nobody chose.
 *
 * A sheet rather than inline styles because the compact arm is a media query
 * and the reset addresses children these components do not own.
 */
export declare function blockRhythmCss(): string;
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