/**
 * 40-bit hash rendered in base36 (8 chars or fewer).
 *
 * 32 bits alone collides at roughly 1-in-300 across 5k atomic rules — well
 * inside the range a real design system hits — so a second seeded pass adds
 * another byte, taking that to ~1-in-100,000.
 */
export declare function hashString(input: string): string;
/**
 * Class names must start with a letter, so every hash is prefixed. The
 * default `tc` matches the framework's `tc-` class prefix while staying
 * distinct from it — compiled utility groups are `tc-<hash>`, atomic style
 * classes are `tc<hash>`, and the two can never collide.
 */
export declare function hashedClassName(input: string, prefix?: string): string;