added configurable font sizes

server.js

@@ -11,7 +11,17 @@ const DB_PATH = process.env.DB_PATH || '/data/revfulop.db';
 const AUTH_PASSWORD = process.env.SIMPLE_AUTH_PASSWORD || '';
 const AUTH_ENABLED = AUTH_PASSWORD.length > 0;
 
-// Family members config (can be overridden via FAMILY_MEMBERS env var as JSON)
+// UI config (all overridable via env vars, no rebuild needed)
+const UI_CONFIG = {
+  fontSize: process.env.UI_FONT_SIZE || '15',           // base font size in px
+  titleSize: process.env.UI_TITLE_SIZE || '32',         // main title size in px
+  calendarSize: process.env.UI_CALENDAR_SIZE || '14',   // calendar day number size in px
+  buttonSize: process.env.UI_BUTTON_SIZE || '14',       // button/input font size in px
+  siteName: process.env.UI_SITE_NAME || 'Nyaraló Naptár',
+  siteSubtitle: process.env.UI_SITE_SUBTITLE || 'Révfülöp · Balaton',
+};
+
+// Family members config (can be overridable via FAMILY_MEMBERS env var as JSON)
 const DEFAULT_MEMBERS = [
   { id: "katinka", name: "Katinka", color: "#513eff" },
   { id: "orsi", name: "Orsi", color: "#a15dd8" },
@@ -122,6 +132,11 @@ app.get('/api/members', (req, res) => {
   res.json(FAMILY_MEMBERS);
 });
 
+// UI config endpoint
+app.get('/api/config', (req, res) => {
+  res.json(UI_CONFIG);
+});
+
 // Bookings CRUD
 app.get('/api/bookings', (req, res) => {
   const bookings = db.prepare('SELECT * FROM bookings ORDER BY start_date').all();
@@ -191,4 +206,5 @@ app.listen(PORT, '0.0.0.0', () => {
   console.log(`Révfülöp Calendar running on port ${PORT}`);
   console.log(`Auth: ${AUTH_ENABLED ? 'ENABLED (simple password)' : 'DISABLED (public access)'}`);
   console.log(`Members: ${FAMILY_MEMBERS.map(m => m.name).join(', ')}`);
+  console.log(`UI: font=${UI_CONFIG.fontSize}px, title=${UI_CONFIG.titleSize}px, calendar=${UI_CONFIG.calendarSize}px`);
 });