/*
 * Runtime style injection sheet.
 *
 * This file is intentionally empty. It exists so that
 * system/data/_css-runtime.js has a same-origin stylesheet to call
 * insertRule() on at runtime — that's how React inline styles
 * (style={{...}}) get converted to CSS classes without needing
 * 'unsafe-inline' in the CSP style-src directive.
 *
 * Per NKSC ZAP scan hardening 2026-06-19.
 */