/* One source of truth for common teaching UI. */
:root{--font-body:Pretendard,'Noto Sans KR',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;--font-code:ui-monospace,SFMono-Regular,Consolas,monospace;
--page:#f6f7fb;--panel:#fff;--panel-muted:#f0f3f8;--ink:#172033;--ink-sub:#526079;--ink-muted:#69758a;--line:#dce3ec;--primary-ui:#3455d1;--primary-ui-hover:#263f9e;--primary-ui-pale:#edf0ff;--success-ui:#18794e;--error-ui:#b4233b;--focus:#3455d1;
--radius-sm:8px;--radius-md:12px;--radius-lg:16px;--container:1120px;--sidebar-width:220px;
--sp-1:4px;--sp-2:8px;--sp-3:12px;--sp-4:16px;--sp-6:24px;--sp-8:32px;--sp-12:48px}