// ─── Spacing scale (4 dp grid) ──────────────────────────────────────────────────
// Every value is a multiple of 4 for pixel-perfect alignment on all screens.

export const spacing = {
  /** 4 dp – hairline / micro-gap */
  xs: 4,
  /** 8 dp – compact padding */
  sm: 8,
  /** 12 dp – default inner padding */
  md: 12,
  /** 16 dp – standard section padding */
  lg: 16,
  /** 24 dp – card-level spacing */
  xl: 24,
  /** 32 dp – large gaps / page margins */
  xxl: 32,
  /** 48 dp – hero / full-section gaps */
  xxxl: 48,
} as const;

/** Keys available in the spacing scale – useful for typed helper utilities */
export type SpacingKeys = keyof typeof spacing;

/**
 * Helper: retrieve a spacing value by key.
 * @example spacingValue('lg') // 16
 */
export function spacingValue(key: SpacingKeys): number {
  return spacing[key];
}