export declare const FONT_SIZE_PRESETS: readonly [12, 14, 16, 18, 20, 22, 24, 28, 32, 36, 40, 44, 48, 54, 60, 66, 72, 76, 80, 88, 96, 104, 112, 120];
export declare const FONT_SIZE_MIN: number;
export declare const FONT_SIZE_MAX: number;
export declare const FONT_SIZE_STEP = 2;
export declare const FONT_SIZE_PX_OPTIONS: {
    label: string;
    value: string;
}[];
export declare const FONT_SIZE_NUMBER_OPTIONS: {
    label: string;
    value: 12 | 14 | 16 | 18 | 20 | 22 | 24 | 28 | 32 | 36 | 40 | 44 | 48 | 54 | 60 | 66 | 72 | 76 | 80 | 88 | 96 | 104 | 112 | 120;
}[];
export declare function parseFontSize(value: string | number | undefined, fallback?: number): number;
export declare function clampFontSize(size: number, min?: number, max?: number): number;
export declare function stepFontSize(size: number, direction: 1 | -1, min?: number, max?: number): number;
export declare function fontSizeToPx(size: number): string;
export declare const FONT_VALUES: readonly ['', 'Calibri', 'SourceSerif4', 'JetBrainsMono', 'Literata', 'Inter', 'Roboto', 'OpenSans', 'Montserrat', 'SourceSansPro', 'Merriweather', 'Lato'];
export interface FontOption {
    label: string;
    value: string;
}
/** @deprecated Use FONT_VALUES — kept for loadGoogleFonts preset detection */
export declare const FONTS: FontOption[];
export declare function getFonts(): FontOption[];
export declare function useFonts(): FontOption[];