diff --git a/config.js b/config.js
index 59dad36..06f09a9 100644
--- a/config.js
+++ b/config.js
@@ -101,12 +101,12 @@ window.CONFIG = {
     // false = live Open-Meteo conditions (also used for the theme choice).
     // true  = cycle sunny -> cloudy -> stormy -> night, useful to compare
     //         all weather looks without waiting on the API.
-    weatherSim: false,            // real Open-Meteo weather
+    weatherSim: true,             // test mode: fixed sunny weather
     weatherSimInterval: 15000,    // ms per weather step when weatherSim is true
     // weatherSim: false, weatherSimInterval: 30000
     // Synthetic weather states used by weatherSim. Each state sets theme,
     // Open-Meteo-like weather_code, temperature, humidity, precipitation and wind.
-    weatherSimStates: ['sunny', 'cloudy', 'rain', 'snow', 'stormy', 'night'],
+    weatherSimStates: ['sunny'],
     weatherSimProfile: {
         sunny:  { code: 0,  tempC: 18, humidity: 45, precipMm: 0.0, snowMm: 0.0, windKmh: 8,  windDirDeg: 240 },
         cloudy: { code: 3,  tempC: 14, humidity: 70, precipMm: 0.0, snowMm: 0.0, windKmh: 14, windDirDeg: 260 },
@@ -147,34 +147,34 @@ window.CONFIG = {
     // Visual precipitation overlays driven by window.__currentWeather.
     // intensity multiplies Open-Meteo values; maxAlpha caps the overlay.
     weatherEffects: {
-        enabled: true,
+        enabled: false,
         rain: {
-            enabled: true,
+            enabled: false,
             intensity: 1.0,       // 0.5 subtle, 2.0 heavy
             maxAlpha: 0.35,       // maximum screen overlay opacity
             speed: 1.0            // fall speed multiplier
         },
         snow: {
-            enabled: true,
+            enabled: false,
             intensity: 1.0,
             maxAlpha: 0.45,
             speed: 0.35           // slow drifting flakes
         },
         lightning: {
-            enabled: true,
+            enabled: false,
             gain: 1.2,            // brightness of one flash
             minDelayS: 8,         // minimum delay between storm flashes
             maxDelayS: 45,        // maximum delay between storm flashes
             doubleFlash: true     // some flashes flicker twice
         },
         wetRoads: {
-            enabled: true,
+            enabled: false,
             dryMinutes: 30,       // roads dry out after this many dry minutes
             roadGain: 0.8,        // extra road-ribbon glow when wet
             lightGain: 0.35       // extra halo on vehicle lights when wet
         },
         snowCover: {
-            enabled: true,
+            enabled: false,
             meltMinutes: 90,      // snow melts after this many warm minutes
             baseLineM: 900,       // snowline at about +5 C
             tempLineMPerC: 80,    // snowline moves down as temperature drops
@@ -626,8 +626,8 @@ window.CONFIG = {
     // time, 1440 = one simulated day per minute. Clock hands, digital readout,
     // weather and sky all use the same clock. Hash overrides: #at=... #speed=...
     day: {
-        startAt: null,               // real time
-        speed: 1                     // real time
+        startAt: '2026-10-13T06:59:00', // frozen test clock
+        speed: 0                     // frozen time
         // startAt: null, speed: 1   // real time
     },