/** Built-in UI design tokens — aligned 1:1 with `lightdraw.css` CSS variables. */
export declare const UI: {
    readonly primary: "#2563eb";
    readonly primaryHover: "#1d4ed8";
    readonly primaryActive: "#163eb8";
    readonly primarySubtle: "#eff6ff";
    /** @deprecated Use `primarySubtle` — kept for canvas definitions compatibility */
    readonly primaryMuted: "#eff6ff";
    readonly secondary: "#475569";
    readonly secondaryHover: "#334155";
    readonly success: "#059669";
    readonly successBg: "#ecfdf5";
    readonly warning: "#d97706";
    readonly danger: "#dc2626";
    readonly surface: "#ffffff";
    readonly surfaceMuted: "#f8fafc";
    readonly surfaceInset: "#f1f5f9";
    readonly overlay: "rgba(15, 23, 42, 0.5)";
    readonly border: "#e2e8f0";
    readonly borderStrong: "#cbd5e1";
    readonly borderFocus: "#2563eb";
    readonly text: "#0f172a";
    readonly textSecondary: "#475569";
    readonly textMuted: "#64748b";
    readonly textInverse: "#ffffff";
    readonly textPlaceholder: "#94a3b8";
    readonly radius: 8;
    readonly radiusSm: 6;
    readonly radiusLg: 12;
    readonly radiusFull: 999;
    readonly font: "system-ui, -apple-system, BlinkMacSystemFont, \"Segoe UI\", sans-serif";
    readonly fontSize: 14;
    readonly fontSizeSm: 12;
    readonly fontSizeLg: 16;
    readonly controlHeight: 40;
    readonly inputHeight: 40;
    readonly spaceXs: 4;
    readonly spaceSm: 8;
    readonly spaceMd: 16;
    readonly spaceLg: 24;
    readonly spaceXl: 32;
    readonly shadowSm: {
        readonly color: "rgba(15, 23, 42, 0.05)";
        readonly blur: 2;
        readonly offsetX: 0;
        readonly offsetY: 1;
    };
    readonly shadowMd: {
        readonly color: "rgba(15, 23, 42, 0.08)";
        readonly blur: 8;
        readonly offsetX: 0;
        readonly offsetY: 2;
    };
    readonly shadowLg: {
        readonly color: "rgba(15, 23, 42, 0.12)";
        readonly blur: 20;
        readonly offsetX: 0;
        readonly offsetY: 8;
    };
    readonly shadowPrimary: {
        readonly color: "rgba(37, 99, 235, 0.28)";
        readonly blur: 8;
        readonly offsetX: 0;
        readonly offsetY: 2;
    };
};