Merge remote-tracking branch 'gitea/main'

# Conflicts:
#	pitch-deck/components/slides/MilestonesSlide.tsx
#	pitch-deck/lib/finanzplan/engine.ts

pitch-deck/components/slides/MilestonesSlide.themes.ts

@@ -1,4 +1,42 @@
 // MilestonesSlide themes — extracted from MilestonesSlide.tsx
+// Contains: THEMES, Theme type, useIsLight hook, MONO style, CSS_KF keyframes
+
+import { useState, useEffect } from 'react'
+
+export const MONO: React.CSSProperties = {
+  fontFamily: '"JetBrains Mono","SF Mono",ui-monospace,monospace',
+  fontVariantNumeric: 'tabular-nums',
+}
+
+export const CSS_KF = `
+  @keyframes msFlow { 0%{stroke-dashoffset:0} 100%{stroke-dashoffset:-18} }
+  @keyframes msFadeIn { from{opacity:0} to{opacity:1} }
+  @keyframes msScaleIn { from{opacity:0;transform:scale(.94)} to{opacity:1;transform:scale(1)} }
+  @keyframes msHeadingDark {
+    0%,100%{text-shadow:0 0 22px rgba(167,139,250,.3)}
+    50%    {text-shadow:0 0 40px rgba(167,139,250,.6)}
+  }
+  @keyframes msHeadingLight {
+    0%,100%{text-shadow:0 0 22px rgba(124,58,237,.15)}
+    50%    {text-shadow:0 0 36px rgba(124,58,237,.30)}
+  }
+  @keyframes msPulse {
+    0%,100%{r:9;opacity:.4}
+    50%    {r:14;opacity:.05}
+  }
+`
+
+export function useIsLight() {
+  const [isLight, setIsLight] = useState(false)
+  useEffect(() => {
+    const check = () => setIsLight(document.documentElement.classList.contains('theme-light'))
+    check()
+    const obs = new MutationObserver(check)
+    obs.observe(document.documentElement, { attributes: true, attributeFilter: ['class'] })
+    return () => obs.disconnect()
+  }, [])
+  return isLight
+}
 
 export const THEMES = {
   dark: {
@@ -103,4 +141,4 @@ export const THEMES = {
   },
 }
 
-export type Theme = typeof THEMES.dark
+export type Theme = typeof THEMES.dark | typeof THEMES.light