diff --git a/assets/blender/chromatic/README.md b/assets/blender/chromatic/README.md
new file mode 100644
index 0000000..9baadf6
--- /dev/null
+++ b/assets/blender/chromatic/README.md
@@ -0,0 +1,12 @@
+# Chromatic grand tourer
+
+Original paint edition of the approved expressway coachwork at `43e5103`, descended from the evolution model at `c9ac36e`. No external models or textures are used.
+
+- `nightdrive-chromatic.blend`: isolated **Chromatic Nightdrive** scene with editable geometry, rose and violet layered paint, sapphire glass, champagne wheel machining, and look-development lights.
+- `author-chromatic.py`: appends the approved expressway source and changes its materials in an isolated scene. Set `__file__` to this script when executing in Blender. It writes only the chromatic library.
+- `export-chromatic.py`: run with the chromatic scene loaded. Evaluates modifiers and batches by material and wheel, retaining four independently rotatable wheel parents. Writes the GLB and SHA-256 provenance.
+- `nightdrive-chromatic.asset.json`: source lineage and export statistics.
+
+Geometry is unchanged: 31,288 triangles and 19 material batches. Runtime studio reflections supply cool edge light and a rose rim over the exported enamel. Runtime emissive fill remains subtle; the body is lit paint, not an illuminated surface. The earlier Blender sources and exports are preserved.
+
+The chromatic Static-mode JPEGs are direct captures of this portfolio’s runtime world at desktop and phone sizes. They contain no project evidence or invented imagery.
diff --git a/assets/blender/chromatic/author-chromatic.py b/assets/blender/chromatic/author-chromatic.py
new file mode 100644
index 0000000..58d8fce
--- /dev/null
+++ b/assets/blender/chromatic/author-chromatic.py
@@ -0,0 +1,43 @@
+"""Append the approved model as an isolated, editable chromatic paint edition.
+Run in Blender with __file__ set to this script. Open projects are never saved.
+"""
+import bpy
+from pathlib import Path
+root_path = Path(__file__).resolve().parents[3]
+source = root_path / 'assets/blender/expressway/nightdrive-expressway.blend'
+with bpy.data.libraries.load(str(source), link=False) as (available, loaded):
+    loaded.scenes = ['Midnight Expressway']
+scene = loaded.scenes[0]
+scene.name = 'Chromatic Nightdrive'
+bpy.context.window.scene = scene
+materials = {m.name.split('.')[0]: m for o in scene.objects if o.type in {'MESH','CURVE'} for m in o.data.materials}
+# Linear RGB: candy-rose enamel, violet shoulders, champagne machining,
+# sapphire glass and dark plum mechanical recesses. Geometry stays approved.
+for name, color, metallic, roughness in [
+    ('M_Body_Gunmetal', (0.46, 0.023, 0.145, 1), 0.68, 0.24),
+    ('M_Body_Haunch', (0.36, 0.035, 0.38, 1), 0.72, 0.22),
+    ('M_Lower_Graphite', (0.029, 0.01, 0.047, 1), 0.57, 0.36),
+    ('M_Wheel', (0.60, 0.40, 0.25, 1), 0.90, 0.23),
+    ('M_Glass_Smoke', (0.013, 0.024, 0.082, 1), 0.38, 0.14),
+]:
+    material = materials[name]
+    bsdf = material.node_tree.nodes.get('Principled BSDF')
+    bsdf.inputs['Base Color'].default_value = color
+    material.diffuse_color = color
+    bsdf.inputs['Metallic'].default_value = metallic
+    bsdf.inputs['Roughness'].default_value = roughness
+    if 'Body' in name:
+        bsdf.inputs['Coat Weight'].default_value = 0.58
+        bsdf.inputs['Coat Roughness'].default_value = 0.16
+        bsdf.inputs['Emission Color'].default_value = (0.035, 0.002, 0.015, 1)
+        bsdf.inputs['Emission Strength'].default_value = 0.16
+for obj in scene.objects:
+    if obj.type == 'LIGHT' and obj.name.startswith('LOOKDEV'):
+        if 'Key' in obj.name: obj.data.color = (0.42, 0.70, 1.0)
+        if 'Rim' in obj.name: obj.data.color = (1.0, 0.12, 0.48)
+        if 'Top' in obj.name: obj.data.color = (1.0, 0.73, 0.65)
+scene.world = scene.world.copy() if scene.world else None
+if scene.world: scene.world.color = (0.045, 0.018, 0.07)
+output = root_path / 'assets/blender/chromatic/nightdrive-chromatic.blend'
+bpy.data.libraries.write(str(output), {scene}, fake_user=True, compress=True)
+print('AUTHORED', scene.name, len(scene.objects), 'objects', output)
diff --git a/assets/blender/chromatic/export-chromatic.py b/assets/blender/chromatic/export-chromatic.py
new file mode 100644
index 0000000..80e75ce
--- /dev/null
+++ b/assets/blender/chromatic/export-chromatic.py
@@ -0,0 +1,51 @@
+"""Export isolated authored source into material batches; leave lookdev editable."""
+import bpy, json, hashlib
+from mathutils import Matrix, Vector
+from pathlib import Path
+root_path=Path(__file__).resolve().parents[3]
+scene=bpy.data.scenes['Chromatic Nightdrive']
+bpy.context.window.scene=scene
+export_scene=bpy.data.scenes.new('Chromatic Export')
+root=bpy.data.objects.new('evolution-chase-car',None); export_scene.collection.objects.link(root)
+names={'M_Body_Gunmetal':'car-body','M_Body_Haunch':'body-haunches','M_Glass_Smoke':'rear-glass','M_Rear_Light':'rear-light-bar','M_Cyan_Accent':'car-underglow-source','M_Lower_Graphite':'body-trim','M_Wheel':'wheel-machining','M_Tire':'tires'}
+depsgraph=bpy.context.evaluated_depsgraph_get(); groups={}
+for obj in scene.objects:
+    if obj.type not in ['MESH','CURVE'] or obj.name.startswith('LOOKDEV'): continue
+    evaluated=obj.evaluated_get(depsgraph)
+    mesh=bpy.data.meshes.new_from_object(evaluated,depsgraph=depsgraph); mesh.transform(obj.matrix_world)
+    clone=bpy.data.objects.new('export-'+obj.name,mesh); export_scene.collection.objects.link(clone)
+    key=obj.data.materials[0].name.split('.')[0]
+    wheel=None
+    for axle in ['front','rear']:
+        for side in ['left','right']:
+            if any(token in obj.name for token in [f'{axle}-wheel-{side}', f'{axle}-rim-{side}', f'{axle}-rim-ring-{side}', f'wheel-{axle}-{side}']):
+                wheel=f'wheel-{axle}-{side}'
+    groups.setdefault((key,wheel),[]).append(clone)
+bpy.context.window.scene=export_scene
+wheel_roots={}
+for (key,wheel),objects in groups.items():
+    bpy.ops.object.select_all(action='DESELECT')
+    for obj in objects: obj.select_set(True)
+    bpy.context.view_layer.objects.active=objects[0]
+    if len(objects)>1: bpy.ops.object.join()
+    joined=bpy.context.object; joined.name='evolution-'+names[key]
+    if wheel:
+        if wheel not in wheel_roots:
+            axle='front' if 'front' in wheel else 'rear'; side=-1 if 'left' in wheel else 1
+            wheel_root=bpy.data.objects.new(wheel,None); export_scene.collection.objects.link(wheel_root)
+            wheel_root.parent=root; wheel_root.location=(side*1.01,-1.62 if axle=='front' else 1.62,.42 if axle=='front' else .46)
+            wheel_roots[wheel]=wheel_root
+        wheel_root=wheel_roots[wheel]
+        joined.data.transform(Matrix.Translation(-wheel_root.location))
+        joined.parent=wheel_root
+    else: joined.parent=root
+bpy.ops.object.select_all(action='SELECT')
+output=root_path/'src/assets/nightdrive-grand-tourer-chromatic.glb'
+bpy.ops.export_scene.gltf(filepath=str(output),export_format='GLB',use_selection=True,use_active_scene=True,export_apply=True,export_animations=False,export_cameras=False,export_lights=False)
+triangles=0
+for obj in export_scene.objects:
+    if obj.type=='MESH': obj.data.calc_loop_triangles(); triangles+=len(obj.data.loop_triangles)
+provenance={'asset':'Nightdrive chromatic grand tourer','source':'nightdrive-chromatic.blend','base':'../expressway/nightdrive-expressway.blend at 43e5103; original evolution at c9ac36e','authorship':'Original procedural modelling in Blender for this portfolio; no external assets or generated project evidence.','editable_scene':'Chromatic Nightdrive','material_groups':len(groups),'independent_wheels':4,'triangles':triangles,'export':'../../../src/assets/nightdrive-grand-tourer-chromatic.glb','sha256':hashlib.sha256(output.read_bytes()).hexdigest()}
+(root_path/'assets/blender/chromatic/nightdrive-chromatic.asset.json').write_text(json.dumps(provenance,indent=2)+'\n')
+bpy.context.window.scene=scene
+print(json.dumps(provenance))
diff --git a/assets/blender/chromatic/nightdrive-chromatic.asset.json b/assets/blender/chromatic/nightdrive-chromatic.asset.json
new file mode 100644
index 0000000..f823bd4
--- /dev/null
+++ b/assets/blender/chromatic/nightdrive-chromatic.asset.json
@@ -0,0 +1,12 @@
+{
+  "asset": "Nightdrive chromatic grand tourer",
+  "source": "nightdrive-chromatic.blend",
+  "base": "../expressway/nightdrive-expressway.blend at 43e5103; original evolution at c9ac36e",
+  "authorship": "Original procedural modelling in Blender for this portfolio; no external assets or generated project evidence.",
+  "editable_scene": "Chromatic Nightdrive",
+  "material_groups": 19,
+  "independent_wheels": 4,
+  "triangles": 31288,
+  "export": "../../../src/assets/nightdrive-grand-tourer-chromatic.glb",
+  "sha256": "89000428d04868cf71a8591fdf9b5096bcd8e732742a6760e6aa58b6d0a9e317"
+}
diff --git a/assets/blender/chromatic/nightdrive-chromatic.blend b/assets/blender/chromatic/nightdrive-chromatic.blend
new file mode 100644
index 0000000..3f5889a
Binary files /dev/null and b/assets/blender/chromatic/nightdrive-chromatic.blend differ
diff --git a/src/App.vue b/src/App.vue
index 957afd4..ef499b6 100644
--- a/src/App.vue
+++ b/src/App.vue
@@ -7,6 +7,7 @@ import './styles/layout.css';
 import './styles/components.css';
 import './styles/world.css';
 import './styles/evolution.css';
+import './styles/chromatic.css';
 import './styles/print.css';
 
 defineProps<{ inputs: Readonly<ProductionInputs> }>();
diff --git a/src/assets/hero-chromatic-mobile.jpg b/src/assets/hero-chromatic-mobile.jpg
new file mode 100644
index 0000000..e79a936
Binary files /dev/null and b/src/assets/hero-chromatic-mobile.jpg differ
diff --git a/src/assets/hero-chromatic.jpg b/src/assets/hero-chromatic.jpg
new file mode 100644
index 0000000..a412d4b
Binary files /dev/null and b/src/assets/hero-chromatic.jpg differ
diff --git a/src/assets/nightdrive-grand-tourer-chromatic.glb b/src/assets/nightdrive-grand-tourer-chromatic.glb
new file mode 100644
index 0000000..71de994
Binary files /dev/null and b/src/assets/nightdrive-grand-tourer-chromatic.glb differ
diff --git a/src/components/SceneCanvas.vue b/src/components/SceneCanvas.vue
index 02b3149..971f05e 100644
--- a/src/components/SceneCanvas.vue
+++ b/src/components/SceneCanvas.vue
@@ -4,8 +4,8 @@ import { useSceneController, type SceneHostState } from '@/composables/useSceneC
 import type { JourneySnapshot } from '@/journey/types';
 import type { MotionPolicy, QualityTier } from '@/journey/motion-policy';
 import { isTestFault, recordTestFaultEvent } from '@/testing/fault-hooks';
-import posterUrl from '@/assets/hero-expressway.jpg';
-import mobilePosterUrl from '@/assets/hero-expressway-mobile.jpg';
+import posterUrl from '@/assets/hero-chromatic.jpg';
+import mobilePosterUrl from '@/assets/hero-chromatic-mobile.jpg';
 
 declare const __PORTFOLIO_TEST_BUILD__: boolean;
 const TEST_BUILD = typeof __PORTFOLIO_TEST_BUILD__ !== 'undefined' && __PORTFOLIO_TEST_BUILD__;
diff --git a/src/scene/world/atmosphere.ts b/src/scene/world/atmosphere.ts
index 0117998..6efcb1a 100644
--- a/src/scene/world/atmosphere.ts
+++ b/src/scene/world/atmosphere.ts
@@ -22,6 +22,8 @@ export interface AtmosphereWorld {
     speed: number,
     acceleration: number,
     palette: Readonly<MutableChapterPalette>,
+    elapsedSeconds?: number,
+    overdrive?: number,
   ): void;
 }
 
@@ -38,7 +40,12 @@ export function createAtmosphere(
   group.name = 'atmosphere-world';
   const night = CHAPTER_PALETTES['deep-night'];
 
-  const skyGeometry = resources.own('geometry', new THREE.PlaneGeometry(2, 2));
+  // The sky contains only broad gradients: interpolate their color over a
+  // small lattice instead of evaluating trigonometry for every screen pixel.
+  const skyGeometry = resources.own(
+    'geometry',
+    new THREE.PlaneGeometry(2, 2, 48, 32),
+  );
   const skyMaterial = resources.own(
     'material',
     new THREE.ShaderMaterial({
@@ -48,37 +55,53 @@ export function createAtmosphere(
         uHazeColor: { value: new THREE.Color(night.haze) },
         uWarmth: { value: night.warmth },
         uAspect: { value: 1 },
+        uTime: { value: 0 },
+        uOverdrive: { value: 0 },
       },
       vertexShader: `
-      varying vec2 vSkyUv;
-      void main() {
-        vSkyUv = uv;
-        gl_Position = vec4(position.xy, 1.0, 1.0);
-      }
-    `,
-      fragmentShader: `
       uniform vec3 uSkyColor;
       uniform vec3 uFogColor;
       uniform vec3 uHazeColor;
       uniform float uWarmth;
       uniform float uAspect;
-      varying vec2 vSkyUv;
+      uniform float uTime;
+      uniform float uOverdrive;
+      varying vec3 vSkyColor;
       void main() {
-        float verticalSky = smoothstep(0.08, 0.66, vSkyUv.y);
+        float verticalSky = smoothstep(0.08, 0.66, uv.y);
         vec3 lowerField = mix(uSkyColor, uFogColor, 0.34);
-        vec3 color = mix(lowerField * 0.72, uSkyColor * 1.2, verticalSky);
-        float horizonBand = exp(-pow(abs(vSkyUv.y - 0.47) * 6.2, 2.0));
-        float normalizedX = abs(vSkyUv.x - 0.5) * 2.0 * min(uAspect, 2.35) / 2.35;
+        vec3 color = mix(lowerField * 0.8, uSkyColor * 1.35, verticalSky);
+        float horizonBand = exp(-pow(abs(uv.y - 0.47) * 6.2, 2.0));
+        float normalizedX = abs(uv.x - 0.5) * 2.0 * min(uAspect, 2.35) / 2.35;
         float centerGlow = 1.0 - smoothstep(0.18, 1.16, normalizedX);
         color = mix(
           color,
           uHazeColor * (0.72 + uWarmth * 0.14),
-          horizonBand * mix(0.18, 0.4, centerGlow)
+          horizonBand * mix(0.23, 0.48, centerGlow)
         );
-        float topFalloff = smoothstep(0.54, 1.0, vSkyUv.y);
+        // Broad auroral veils share the existing sky pass. Slow, unequal
+        // periods let the sky breathe without scrolling or camera movement.
+        float drift = sin(uv.x * 5.2 + uTime * 0.025) * 0.035;
+        float arc = uv.y - (0.66 + 0.19 * sin(uv.x * 2.8 - 0.35) + drift);
+        float veil = exp(-arc * arc * 82.0);
+        float innerVeil = exp(-pow((arc + 0.055) * 17.0, 2.0));
+        float side = smoothstep(0.15, 0.7, uv.x);
+        vec3 violet = vec3(0.23, 0.018, 0.50);
+        vec3 rose = vec3(0.50, 0.018, 0.17);
+        vec3 aurora = mix(violet, rose, 0.5 + 0.5 * sin(uv.x * 4.2 + uTime * 0.018));
+        color += aurora * veil * (0.10 + side * 0.11) * (1.0 + uOverdrive * 0.36);
+        color += vec3(0.018, 0.075, 0.29) * innerVeil * side * 0.12;
+        float topFalloff = smoothstep(0.54, 1.0, uv.y);
         float vignette = smoothstep(0.36, 1.18, normalizedX);
         color *= 1.0 - topFalloff * 0.28 - vignette * 0.08;
-        gl_FragColor = vec4(color, 1.0);
+        vSkyColor = color;
+        gl_Position = vec4(position.xy, 1.0, 1.0);
+      }
+    `,
+      fragmentShader: `
+      varying vec3 vSkyColor;
+      void main() {
+        gl_FragColor = vec4(vSkyColor, 1.0);
         #include <tonemapping_fragment>
         #include <colorspace_fragment>
       }
@@ -165,7 +188,8 @@ export function createAtmosphere(
       void main() {
         float radius = distance(gl_PointCoord, vec2(0.5));
         float point = 1.0 - smoothstep(0.2, 0.5, radius);
-        gl_FragColor = vec4(uColor, point * vBrightness * uVisibility);
+        vec3 starColor = mix(uColor, vec3(1.0, 0.40, 0.58), smoothstep(0.65, 1.0, vBrightness));
+        gl_FragColor = vec4(starColor, point * vBrightness * uVisibility);
         #include <tonemapping_fragment>
         #include <colorspace_fragment>
       }
@@ -200,6 +224,7 @@ export function createAtmosphere(
       uniform float uDistance;
       uniform float uAcceleration;
       varying float vTail;
+      varying vec3 vStreakColor;
       void main() {
         vec3 streak = position;
         float depthCycle = mod(
@@ -208,6 +233,7 @@ export function createAtmosphere(
         ) + ${WORLD_FAR_Z.toFixed(1)};
         streak.z = depthCycle - endFactor * (1.4 + uAcceleration * 31.0);
         vTail = endFactor;
+        vStreakColor = mix(vec3(1.0, 0.065, 0.39), vec3(0.035, 0.66, 1.0), smoothstep(-80.0, 80.0, position.x));
         gl_Position = projectionMatrix * modelViewMatrix * vec4(streak, 1.0);
       }
     `,
@@ -215,8 +241,9 @@ export function createAtmosphere(
       uniform vec3 uColor;
       uniform float uVisibility;
       varying float vTail;
+      varying vec3 vStreakColor;
       void main() {
-        gl_FragColor = vec4(uColor * (1.0 + uVisibility * 0.45), uVisibility * mix(0.08, 0.62, vTail));
+        gl_FragColor = vec4(vStreakColor * (1.0 + uVisibility * 0.45), uVisibility * mix(0.08, 0.62, vTail));
         #include <tonemapping_fragment>
         #include <colorspace_fragment>
       }
@@ -241,7 +268,14 @@ export function createAtmosphere(
         : 1;
       skyMaterial.uniforms.uAspect.value = safeAspect;
     },
-    update(distance, speed, acceleration, palette) {
+    update(
+      distance,
+      speed,
+      acceleration,
+      palette,
+      elapsedSeconds = 0,
+      overdrive = 0,
+    ) {
       const safeAcceleration = clamp01(acceleration);
       const visibility =
         safeAcceleration *
@@ -257,6 +291,8 @@ export function createAtmosphere(
       skyMaterial.uniforms.uFogColor.value.copy(palette.fog);
       skyMaterial.uniforms.uHazeColor.value.copy(palette.haze);
       skyMaterial.uniforms.uWarmth.value = palette.warmth;
+      skyMaterial.uniforms.uTime.value = finiteOrZero(elapsedSeconds);
+      skyMaterial.uniforms.uOverdrive.value = clamp01(overdrive);
       for (let index = 0; index < silhouetteMaterials.length; index += 1) {
         silhouetteMaterials[index]?.color
           .copy(palette.fog)
diff --git a/src/scene/world/car.ts b/src/scene/world/car.ts
index 388590e..efa64f9 100644
--- a/src/scene/world/car.ts
+++ b/src/scene/world/car.ts
@@ -1,6 +1,6 @@
 import * as THREE from 'three';
 import { GLTFLoader } from 'three/examples/jsm/loaders/GLTFLoader.js';
-import grandTourerUrl from '@/assets/nightdrive-grand-tourer-expressway.glb?url';
+import grandTourerUrl from '@/assets/nightdrive-grand-tourer-chromatic.glb?url';
 import type { SceneResourceBag } from '@/scene/resources';
 import type { SceneDetailMode } from '@/scene/types';
 
@@ -94,8 +94,8 @@ export function createCar(
   const bodyMaterial = resources.own(
     'material',
     new THREE.MeshStandardMaterial({
-      color: 0x304e68,
-      emissive: 0x091725,
+      color: 0xa72c73,
+      emissive: 0x2c0822,
       emissiveIntensity: 0.42,
       roughness: 0.36,
       metalness: 0.68,
@@ -104,8 +104,8 @@ export function createCar(
   const shoulderMaterial = resources.own(
     'material',
     new THREE.MeshStandardMaterial({
-      color: 0x365b77,
-      emissive: 0x0a1b2a,
+      color: 0x793fb2,
+      emissive: 0x211032,
       emissiveIntensity: 0.36,
       roughness: 0.3,
       metalness: 0.74,
@@ -475,11 +475,11 @@ function createAuthoredCar(
         material.isMeshStandardMaterial &&
         (object.name === 'car-body' || object.name === 'body-haunches')
       ) {
-        material.emissive?.setHex(0x0b2738);
-        material.emissiveIntensity = 0.26;
+        material.emissive?.setHex(0x491034);
+        material.emissiveIntensity = 0.16;
       }
       if (material.isMeshStandardMaterial && object.name === 'rear-glass') {
-        material.emissive?.setHex(0x041725);
+        material.emissive?.setHex(0x0f143d);
         material.emissiveIntensity = 0.31;
       }
       if (object.name === 'rear-light-bar' && material.isMeshStandardMaterial) {
diff --git a/src/scene/world/coachwork-light.ts b/src/scene/world/coachwork-light.ts
index 6a2155e..25bd4e0 100644
--- a/src/scene/world/coachwork-light.ts
+++ b/src/scene/world/coachwork-light.ts
@@ -6,13 +6,13 @@ import type { SceneResourceBag } from '@/scene/resources';
  */
 export function createCoachworkEnvironment(resources: SceneResourceBag, renderer: unknown) {
   const studio = new THREE.Scene();
-  studio.background = new THREE.Color(0x172738);
+  studio.background = new THREE.Color(0x251435);
   const geometry = new THREE.PlaneGeometry(1, 1);
   const cards = [
-    { color: 0xb6dce8, power: 3, at: [-8, 7, 2], size: [4, 14] },
-    { color: 0x607c91, power: 1.5, at: [6, 5, -3], size: [5, 12] },
-    { color: 0xcbd8df, power: 2.2, at: [0, 12, 0], size: [14, 6] },
-    { color: 0xbc7278, power: 1.2, at: [0, 3, -12], size: [20, 4] },
+    { color: 0x86d9ff, power: 3, at: [-8, 7, 2], size: [4, 14] },
+    { color: 0xff68b7, power: 1.5, at: [6, 5, -3], size: [5, 12] },
+    { color: 0xffdcce, power: 2.2, at: [0, 12, 0], size: [14, 6] },
+    { color: 0xff8b66, power: 1.2, at: [0, 3, -12], size: [20, 4] },
   ];
   const materials = cards.map((card) => {
     const material = new THREE.MeshBasicMaterial({ color: new THREE.Color(card.color).multiplyScalar(card.power), side: THREE.DoubleSide });
diff --git a/src/scene/world/environment.ts b/src/scene/world/environment.ts
index a0217f2..6c2f8ee 100644
--- a/src/scene/world/environment.ts
+++ b/src/scene/world/environment.ts
@@ -317,6 +317,8 @@ export async function createProceduralSceneGeneration(
         visualSpeed,
         response.streakEnergy,
         currentPalette,
+        atmosphericTime,
+        overdrive,
       );
       background.copy(currentPalette.sky);
       scene.fog.color.copy(currentPalette.fog);
@@ -325,9 +327,9 @@ export async function createProceduralSceneGeneration(
         .lerp(currentPalette.terrainHigh, 0.26);
       ambient.groundColor.copy(currentPalette.fog);
       ambient.intensity = 1.05 + currentPalette.warmth * 0.18;
-      carKeyLight.color.setHex(0xb9e3ef);
+      carKeyLight.color.setHex(0xb2d5ff);
       carKeyLight.intensity = 32 + response.bloomEnergy * 3.6 + overdrive * 8;
-      carFillLight.color.setHex(0x809ec1);
+      carFillLight.color.setHex(0xff62ad);
       carFillLight.intensity = 12.5 + currentPalette.warmth * 2.8;
       rearLight.intensity = 4.2 + response.suspensionEnergy * 1.4;
       const wideComposition = camera.aspect > 1.18;
diff --git a/src/scene/world/expressway.ts b/src/scene/world/expressway.ts
index 625fb32..adb9ef6 100644
--- a/src/scene/world/expressway.ts
+++ b/src/scene/world/expressway.ts
@@ -51,10 +51,10 @@ export function createExpressway(
         void main() {
           float farFade = 1.0 - smoothstep(380.0, 660.0, vDepth);
           float nearFade = smoothstep(0.0, 9.0, vDepth);
-          vec3 cyan = vec3(0.15, 0.69, 0.76);
+          vec3 cyan = mix(vec3(1.0, 0.025, 0.34), vec3(0.02, 0.78, 0.93), step(0.0, vWorld.x));
           vec3 coral = vec3(1.0, 0.18, 0.095);
           float facing = max(0.0, dot(normalize(vNormal), normalize(vec3(-0.5, 0.9, 0.6))));
-          vec3 color = ${luminous ? `mix(${coral ? 'coral' : 'cyan'}, coral, uWarmth * 0.12) * (1.3 + uEnergy * 0.5)` : 'vec3(0.015, 0.027, 0.044) + vec3(0.055, 0.10, 0.135) * pow(facing, 2.0)'};
+          vec3 color = ${luminous ? `mix(${coral ? 'coral' : 'cyan'}, coral, uWarmth * 0.12) * (1.3 + uEnergy * 0.5)` : 'vec3(0.028, 0.012, 0.046) + vec3(0.09, 0.055, 0.14) * pow(facing, 2.0)'};
           ${!luminous ? 'color += cyan * pow(max(0.0, vNormal.x), 2.0) * 0.028;' : ''}
           if(farFade * nearFade < 0.02) discard;
           gl_FragColor = vec4(color, farFade * nearFade);
diff --git a/src/scene/world/horizon-air.ts b/src/scene/world/horizon-air.ts
index 62a0007..b0f84f8 100644
--- a/src/scene/world/horizon-air.ts
+++ b/src/scene/world/horizon-air.ts
@@ -29,8 +29,10 @@ export function createHorizonAir(resources: SceneResourceBag) {
         float ribbon=exp(-pow((vUv.y-0.45-wave)*5.6,2.0));
         float thin=exp(-pow((vUv.y-0.51-wave)*37.0,2.0));
         float horizontal=pow(max(0.0,sin(vUv.x*3.14159)),2.0);
-        vec3 color=mix(uColor,vec3(0.21,0.49,0.59),vUv.y*0.25);
-        gl_FragColor=vec4(color,(ribbon*0.12+thin*0.026)*horizontal*(0.6+uWarmth*0.4));
+        float colorWave=0.5+0.5*sin(vUv.x*7.0+uTime*0.035);
+        vec3 color=mix(uColor,vec3(0.27,0.045,0.75),colorWave*0.55);
+        color=mix(color,vec3(0.05,0.52,0.75),smoothstep(0.54,0.82,vUv.y)*0.3);
+        gl_FragColor=vec4(color,(ribbon*0.16+thin*0.032)*horizontal*(0.7+uWarmth*0.3));
         #include <tonemapping_fragment>
         #include <colorspace_fragment>
       }
diff --git a/src/scene/world/palette.ts b/src/scene/world/palette.ts
index fd9fe15..2d1a626 100644
--- a/src/scene/world/palette.ts
+++ b/src/scene/world/palette.ts
@@ -38,72 +38,72 @@ export interface MutableColor {
 
 export const CHAPTER_PALETTES: Readonly<Record<EnvironmentChapter, ChapterPaletteDefinition>> = {
   'deep-night': {
-    sky: 0x040713,
-    fog: 0x07101c,
-    terrainLow: 0x388596,
-    terrainHigh: 0xa85e87,
-    sun: 0xe97985,
-    haze: 0x69425b,
+    sky: 0x19092e,
+    fog: 0x291236,
+    terrainLow: 0x48cbe0,
+    terrainHigh: 0xf16cbd,
+    sun: 0xff649d,
+    haze: 0xaf287d,
     warmth: 0.12,
     terrainEnergy: 0.78,
     starVisibility: 1,
     streakEnergy: 0.72,
   },
   systems: {
-    sky: 0x050918,
-    fog: 0x081622,
-    terrainLow: 0x168aa0,
-    terrainHigh: 0xa83f79,
-    sun: 0xd05282,
-    haze: 0x6d2968,
+    sky: 0x140b34,
+    fog: 0x221c48,
+    terrainLow: 0x59bdeb,
+    terrainHigh: 0xe06fff,
+    sun: 0xff569d,
+    haze: 0x902dad,
     warmth: 0.22,
     terrainEnergy: 0.9,
     starVisibility: 0.94,
     streakEnergy: 0.86,
   },
   infrastructure: {
-    sky: 0x060a1b,
-    fog: 0x091a2a,
-    terrainLow: 0x197f98,
-    terrainHigh: 0xa13d7a,
-    sun: 0xd45b82,
-    haze: 0x6f2d70,
+    sky: 0x0e123b,
+    fog: 0x252148,
+    terrainLow: 0x3fe5dc,
+    terrainHigh: 0xd179ff,
+    sun: 0xff688e,
+    haze: 0x773bb1,
     warmth: 0.3,
     terrainEnergy: 0.88,
     starVisibility: 0.86,
     streakEnergy: 0.82,
   },
   builds: {
-    sky: 0x0b0d22,
-    fog: 0x111d2d,
-    terrainLow: 0x1a8ba0,
-    terrainHigh: 0xb04479,
-    sun: 0xe16d7a,
-    haze: 0x7f356c,
+    sky: 0x260b37,
+    fog: 0x391a43,
+    terrainLow: 0x6eb8ff,
+    terrainHigh: 0xff70ac,
+    sun: 0xff8269,
+    haze: 0xcb3a84,
     warmth: 0.46,
     terrainEnergy: 1,
     starVisibility: 0.72,
     streakEnergy: 1,
   },
   'pre-dawn': {
-    sky: 0x15142a,
-    fog: 0x1c2433,
-    terrainLow: 0x277f91,
-    terrainHigh: 0x9c4b78,
-    sun: 0xf09667,
-    haze: 0xa45468,
+    sky: 0x261337,
+    fog: 0x3a2648,
+    terrainLow: 0x79c7ee,
+    terrainHigh: 0xef81b7,
+    sun: 0xffa567,
+    haze: 0xbc536f,
     warmth: 0.76,
     terrainEnergy: 0.72,
     starVisibility: 0.38,
     streakEnergy: 0.52,
   },
   destination: {
-    sky: 0x241b31,
-    fog: 0x2b2b38,
-    terrainLow: 0x386f79,
-    terrainHigh: 0x87506e,
-    sun: 0xf4b06d,
-    haze: 0xbb6b65,
+    sky: 0x311635,
+    fog: 0x4d2a42,
+    terrainLow: 0x77d3d7,
+    terrainHigh: 0xe293c3,
+    sun: 0xffc078,
+    haze: 0xd96d74,
     warmth: 1,
     terrainEnergy: 0.54,
     starVisibility: 0.16,
diff --git a/src/scene/world/road.ts b/src/scene/world/road.ts
index fe8b08b..43e524a 100644
--- a/src/scene/world/road.ts
+++ b/src/scene/world/road.ts
@@ -47,10 +47,10 @@ export function createRoad(
     uDistance: { value: 0 },
     uSpeed: { value: 0 },
     uAcceleration: { value: 0 },
-    uAsphalt: { value: new THREE.Color(0x03070f) },
-    uAsphaltLift: { value: new THREE.Color(0x162535) },
-    uEdgeColor: { value: new THREE.Color(0x64d9e7) },
-    uLaneColor: { value: new THREE.Color(0xf1a35e) },
+    uAsphalt: { value: new THREE.Color(0x090511) },
+    uAsphaltLift: { value: new THREE.Color(0x231936) },
+    uEdgeColor: { value: new THREE.Color(0x47e4f0) },
+    uLaneColor: { value: new THREE.Color(0xffb568) },
     uFogColor: { value: new THREE.Color(initialPalette.fog) },
     uHazeColor: { value: new THREE.Color(initialPalette.haze) },
   };
@@ -110,6 +110,7 @@ export function createRoad(
 
       void main() {
         float roadX = abs(vRoadX);
+        vec3 edgeColor = mix(vec3(1.0, 0.035, 0.34), uEdgeColor, smoothstep(-1.0, 1.0, vRoadX));
         float travelZ = -vWorldZ + mod(uDistance, ${FLOW_PERIOD.toFixed(1)});
         float asphaltMask = 1.0 - smoothstep(7.78, 8.2, roadX);
         float shoulderMask = smoothstep(7.72, 8.08, roadX);
@@ -137,8 +138,8 @@ export function createRoad(
         vec3 shoulder = mix(uAsphalt * 0.54, uAsphaltLift * 0.7, broadVariation);
         shoulder *= shoulderBreakup;
         vec3 color = mix(shoulder, asphalt, asphaltMask);
-        color += uEdgeColor * outerEdge * (0.78 + uAcceleration * 0.34);
-        color += uEdgeColor * shoulderMask * grain * 0.026;
+        color += edgeColor * outerEdge * (0.78 + uAcceleration * 0.34);
+        color += edgeColor * shoulderMask * grain * 0.026;
         color += uHazeColor * shoulderSeam * (0.035 + aggregate * 0.025);
         color += uLaneColor * centerLane * (0.86 + uSpeed * 0.18);
 
@@ -148,12 +149,12 @@ export function createRoad(
         float streak = valueNoise(vec2(vRoadX * 16.0, travelZ * 0.19));
         float film = mix(0.36, 1.0, streak) * (0.74 + 0.26 * fine);
         float grazing = smoothstep(8.0, 120.0, vViewDistance);
-        color += vec3(0.027, 0.047, 0.063) * film * asphaltMask * (0.35 + grazing * 0.65);
+        color += vec3(0.037, 0.022, 0.069) * film * asphaltMask * (0.35 + grazing * 0.65);
         float channel = exp(-pow((roadX - 7.98) * 2.4, 2.0));
-        color += uEdgeColor * channel * (0.06 + 0.10 * film);
+        color += edgeColor * channel * (0.06 + 0.10 * film);
         float shoulderRibs = step(0.77, fract(travelZ / 1.4))
           * smoothstep(8.28, 8.36, roadX) * (1.0 - smoothstep(8.85, 9.02, roadX));
-        color += vec3(0.065, 0.10, 0.12) * shoulderRibs;
+        color += vec3(0.11, 0.065, 0.17) * shoulderRibs;
         float joint = 1.0 - smoothstep(0.02, 0.075, abs(mod(travelZ + 36.0, 72.0) - 36.0));
         color *= 1.0 - joint * 0.5;
         float studs = (1.0 - smoothstep(0.07, 0.14, abs(roadX - 7.53)))
diff --git a/src/scene/world/sign.ts b/src/scene/world/sign.ts
index 1c3588f..52b408b 100644
--- a/src/scene/world/sign.ts
+++ b/src/scene/world/sign.ts
@@ -113,8 +113,8 @@ export function createSign(
   const housingMaterial = resources.own(
     'material',
     new THREE.MeshStandardMaterial({
-      color: 0x334956,
-      emissive: 0x23404e,
+      color: 0x654169,
+      emissive: 0x512547,
       emissiveIntensity: 0.6,
       roughness: 0.28,
       metalness: 0.7,
@@ -126,7 +126,7 @@ export function createSign(
   const backplateMaterial = resources.own(
     'material',
     new THREE.MeshStandardMaterial({
-      color: 0x172e3c,
+      color: 0x301f47,
       roughness: 0.72,
       metalness: 0.38,
       transparent: true,
@@ -137,7 +137,7 @@ export function createSign(
   const facePanelMaterial = resources.own(
     'material',
     new THREE.MeshStandardMaterial({
-      color: 0x061018,
+      color: 0x11091d,
       roughness: 0.9,
       metalness: 0.12,
       transparent: true,
@@ -148,8 +148,8 @@ export function createSign(
   const supportMaterial = resources.own(
     'material',
     new THREE.MeshStandardMaterial({
-      color: 0x21343e,
-      emissive: 0x163845,
+      color: 0x3c2752,
+      emissive: 0x38204e,
       emissiveIntensity: 0.4,
       roughness: 0.56,
       metalness: 0.68,
@@ -161,8 +161,8 @@ export function createSign(
   const edgeMaterial = resources.own(
     'material',
     new THREE.MeshStandardMaterial({
-      color: 0x39747a,
-      emissive: 0x55b9c0,
+      color: 0xa3488d,
+      emissive: 0xff79c0,
       emissiveIntensity: 1.1,
       roughness: 0.42,
       metalness: 0.5,
@@ -174,8 +174,8 @@ export function createSign(
   const routeMaterial = resources.own(
     'material',
     new THREE.MeshStandardMaterial({
-      color: 0x8e6446,
-      emissive: 0xb9723f,
+      color: 0xbc744d,
+      emissive: 0xffae6b,
       emissiveIntensity: 0.8,
       roughness: 0.48,
       metalness: 0.42,
@@ -706,7 +706,7 @@ function drawLabel(
   context.imageSmoothingQuality = 'high';
 
   context.globalAlpha = 0.16;
-  context.fillStyle = '#8aa1a6';
+  context.fillStyle = '#cfabcd';
   for (const [x, y, scratchWidth] of [
     [312, 84, 142],
     [742, 424, 96],
@@ -717,25 +717,25 @@ function drawLabel(
   }
 
   context.globalAlpha = 1;
-  context.fillStyle = '#52bbc2';
+  context.fillStyle = '#ff95cd';
   context.fillRect(82, 72, 10, 368);
-  context.fillStyle = '#91a6a9';
+  context.fillStyle = '#bbaae0';
   context.font = SIGN_MARKER_FONT;
   context.textAlign = 'left';
   context.textBaseline = 'middle';
   context.fillText(`ROUTE ${route.marker} / NEXT`, 142, 120);
 
   context.globalAlpha = 0.6;
-  context.fillStyle = '#2f4650';
+  context.fillStyle = '#61416d';
   context.fillRect(142, 174, 1_610, 2);
 
   context.globalAlpha = 1;
-  context.fillStyle = '#e2f7f4';
+  context.fillStyle = '#fff2df';
   const labelSize = fittedLabelSize(context, route.label, 1_520);
   context.font = `650 ${labelSize}px "Geist Variable", sans-serif`;
   context.fillText(route.label, 142, 326);
 
-  context.strokeStyle = '#cb9160';
+  context.strokeStyle = '#ffb879';
   context.lineWidth = 10;
   context.lineCap = 'square';
   context.lineJoin = 'miter';
diff --git a/src/scene/world/speed-wake.ts b/src/scene/world/speed-wake.ts
index 9d4be53..8a4f862 100644
--- a/src/scene/world/speed-wake.ts
+++ b/src/scene/world/speed-wake.ts
@@ -60,8 +60,8 @@ export function createSpeedWake(resources: SceneResourceBag) {
         float crossFade=pow(max(0.0,1.0-abs(vUv.x*2.0-1.0)),1.3);
         float tip=pow(1.0-vUv.y,1.4)*smoothstep(0.0,0.055,vUv.y);
         float filament=0.76+0.24*sin(vUv.y*35.0-uTime*15.0);
-        vec3 color=mix(vec3(0.45,0.91,1.0),vec3(0.66,0.12,0.64),vUv.y);
-        color+=vec3(0.7,0.85,0.9)*pow(crossFade,5.0)*0.7;
+        vec3 color=mix(vec3(0.08,0.86,1.0),vec3(1.0,0.02,0.44),vUv.y);
+        color+=vec3(1.0,0.46,0.21)*pow(crossFade,5.0)*0.36;
         gl_FragColor=vec4(color*1.8,crossFade*tip*filament*uPower*0.8);
         #include <tonemapping_fragment>
         #include <colorspace_fragment>
@@ -95,12 +95,13 @@ export function createSpeedWake(resources: SceneResourceBag) {
     'material',
     new THREE.ShaderMaterial({
       uniforms,
-      vertexShader: `uniform float uPower;uniform float uTime;varying float vAlpha;
+      vertexShader: `uniform float uPower;uniform float uTime;varying float vAlpha;varying vec3 vColor;
       void main(){float phase=fract(uTime*0.66+position.y*0.5);
         vec3 p=vec3(position.x*(0.85+phase*0.85),0.04,position.z+phase*15.0);
+        vColor=mix(vec3(1.0,0.06,0.4),vec3(0.04,0.85,1.0),position.y);
         vAlpha=sin(phase*3.14159)*(1.0-phase)*uPower*uPower;
         gl_Position=projectionMatrix*modelViewMatrix*vec4(p,1.0);}`,
-      fragmentShader: `varying float vAlpha;void main(){gl_FragColor=vec4(0.3,0.85,1.0,vAlpha*0.48);}`,
+      fragmentShader: `varying float vAlpha;varying vec3 vColor;void main(){gl_FragColor=vec4(vColor,vAlpha*0.48);}`,
       transparent: true,
       depthWrite: false,
       depthTest: true,
diff --git a/src/scene/world/sun.ts b/src/scene/world/sun.ts
index 07663e5..b3ff90d 100644
--- a/src/scene/world/sun.ts
+++ b/src/scene/world/sun.ts
@@ -73,9 +73,9 @@ export function createSun(resources: SceneResourceBag): SunWorld {
         float lip = exp(-abs(phase - gap - 0.025) * 90.0) * step(solar.y, 0.65);
         float convection = sin(solar.x * 19.0 + sin(solar.y * 23.0 + uTime * 0.055))
           * sin(solar.y * 31.0 - uTime * 0.032);
-        vec3 vermilion = vec3(0.91, 0.045, 0.075);
-        vec3 coral = mix(uColor, vec3(1.0, 0.19, 0.10), 0.6);
-        vec3 crown = vec3(1.0, 0.54, 0.25);
+        vec3 vermilion = vec3(0.85, 0.018, 0.28);
+        vec3 coral = mix(uColor, vec3(1.0, 0.16, 0.13), 0.48);
+        vec3 crown = vec3(1.0, 0.63, 0.24);
         vec3 core = mix(vermilion, coral, smoothstep(0.0, 0.58, solar.y));
         core = mix(core, crown, smoothstep(0.47, 1.0, solar.y));
         float filament = pow(abs(sin(solar.x * 39.0 + solar.y * 25.0 + convection * 2.4)), 16.0);
@@ -199,7 +199,7 @@ export function createSun(resources: SceneResourceBag): SunWorld {
         : 0;
       uniforms.uDriveEnergy.value = energy;
       limbMaterial.uniforms.uEnergy.value = energy;
-      haloMaterial.opacity = 0.075 + palette.warmth * 0.03 + energy * 0.015;
+      haloMaterial.opacity = 0.095 + palette.warmth * 0.03 + energy * 0.015;
       bleedMaterial.opacity = 0.055 + palette.warmth * 0.03 + energy * 0.01;
       halo.scale.set(480 + energy * 18, 360 + energy * 10, 1);
       disc.position.y = 79 + palette.warmth * 14;
diff --git a/src/scene/world/terrain.ts b/src/scene/world/terrain.ts
index 9761801..072115a 100644
--- a/src/scene/world/terrain.ts
+++ b/src/scene/world/terrain.ts
@@ -90,12 +90,13 @@ export function createTerrain(
       // produces a color seam. Compute it per vertex, not per pixel.
       vec3 gridSpectrum(float phase) {
         float p = fract(phase);
-        vec3 cyan = vec3(0.025, 0.70, 0.90);
-        vec3 color = mix(cyan, vec3(0.075, 0.18, 0.80), smoothstep(0.04, 0.22, p));
-        color = mix(color, vec3(0.39, 0.085, 0.80), smoothstep(0.22, 0.40, p));
-        color = mix(color, vec3(0.88, 0.035, 0.28), smoothstep(0.40, 0.60, p));
-        color = mix(color, vec3(0.95, 0.21, 0.08), smoothstep(0.60, 0.78, p));
-        return mix(color, cyan, smoothstep(0.78, 1.0, p));
+        vec3 cyan = vec3(0.015, 0.82, 0.94);
+        vec3 color = mix(cyan, vec3(0.025, 0.12, 1.0), smoothstep(0.04, 0.22, p));
+        color = mix(color, vec3(0.48, 0.025, 1.0), smoothstep(0.22, 0.40, p));
+        color = mix(color, vec3(1.0, 0.02, 0.42), smoothstep(0.40, 0.60, p));
+        color = mix(color, vec3(1.0, 0.22, 0.045), smoothstep(0.60, 0.78, p));
+        color = mix(color, vec3(1.0, 0.55, 0.10), smoothstep(0.78, 0.87, p));
+        return mix(color, cyan, smoothstep(0.87, 1.0, p));
       }
 
       float hash21(vec2 point) {
@@ -174,7 +175,7 @@ export function createTerrain(
         vec3 color = mix(vGridColor, uLowColor, 0.06);
         // Speed warms passing accents, while the full palette stays present.
         float hotAccent = uOverdrive * smoothstep(0.62, 1.0, vFlow) * 0.36;
-        color = mix(color, vec3(1.0, 0.28, 0.10), hotAccent);
+        color = mix(color, vec3(1.0, 0.20, 0.25), hotAccent);
         color = mix(color, uHighColor, ridgeMix * 0.055);
         color = mix(color, mix(uFogColor, uHazeColor, 0.2), 1.0 - vDepthFade);
         float pulse = 0.88 + 0.12 * smoothstep(0.16, 0.55, vFlow);
@@ -184,7 +185,7 @@ export function createTerrain(
         float surfaceStrength = mix(0.72, 0.12 + uOverdrive * 0.3, road);
         float alpha = vDepthFade * pulse * routeCalm * mix(surfaceStrength, 0.91, ridgeMix);
         float charge = uOverdrive * (0.35 + vFlow * 0.8) * (0.5 + apron * 0.5);
-        gl_FragColor = vec4(color * (1.3 + ridgeMix * 0.5 + charge), alpha);
+        gl_FragColor = vec4(color * (1.46 + ridgeMix * 0.54 + charge), alpha);
         #include <tonemapping_fragment>
         #include <colorspace_fragment>
       }
@@ -223,10 +224,11 @@ export function createTerrain(
       varying float vHeight;
       varying float vDepthFade;
       varying vec3 vTerrainPosition;
+      varying vec3 vGridColor;
       void main() {
         vec3 normal = normalize(cross(dFdx(vTerrainPosition), dFdy(vTerrainPosition)));
         float light = abs(dot(normal, normalize(vec3(-0.5, 0.8, -0.3))));
-        vec3 color = mix(vec3(0.002, 0.008, 0.016), uLowColor * 0.11, light);
+        vec3 color = mix(vec3(0.012, 0.003, 0.024), vGridColor * 0.065, light);
         color += uHighColor * pow(vHeight, 2.0) * light * 0.06;
         color = mix(uFogColor * 0.55, color, vDepthFade);
         gl_FragColor = vec4(color, 1.0);
diff --git a/src/styles/chromatic.css b/src/styles/chromatic.css
new file mode 100644
index 0000000..5e99626
--- /dev/null
+++ b/src/styles/chromatic.css
@@ -0,0 +1,400 @@
+@media screen {
+  /* Chromatic nightdrive: rose light, violet enamel and electric blue.
+   Color stays independent of layout, chapter measurements and drive state. */
+  :root {
+    --canvas: #130c23;
+    --surface: rgb(28 17 45 / 98.5%);
+    --surface-strong: #20142f;
+    --surface-soft: #2c1c40;
+    --line: rgb(202 147 238 / 24%);
+    --line-strong: rgb(231 129 215 / 54%);
+    --text: #fff4f1;
+    --text-muted: #cec0d7;
+    --accent: #8be9ed;
+    --accent-deep: #163943;
+    --focus: #ffe096;
+    --world-magenta: #ff70bf;
+    --world-amber: #ffbb86;
+    --rose: #ff83c2;
+    --coral: #ffa68d;
+    --violet: #c4a2ff;
+    --electric: #8bb8ff;
+    --night-ink-rgb: 19 10 33;
+    --chapter-accent: var(--rose);
+    --chapter-glow: 196 64 143;
+    --panel-shadow: 0 24px 80px rgb(13 2 28 / 34%);
+  }
+
+  .journey-world {
+    background: var(--canvas);
+  }
+  .site-navigation {
+    background: linear-gradient(
+      110deg,
+      rgb(39 19 52 / 97%),
+      rgb(22 22 48 / 97%)
+    );
+    border-color: rgb(198 122 209 / 34%);
+    box-shadow:
+      0 8px 32px rgb(13 2 28 / 24%),
+      inset 0 1px rgb(255 159 216 / 7%);
+  }
+  .site-navigation li {
+    --nav-accent: var(--coral);
+  }
+  .site-navigation li:nth-child(2),
+  .site-navigation li:nth-child(6) {
+    --nav-accent: var(--rose);
+  }
+  .site-navigation li:nth-child(3),
+  .site-navigation li:nth-child(7) {
+    --nav-accent: var(--violet);
+  }
+  .site-navigation li:nth-child(4) {
+    --nav-accent: var(--accent);
+  }
+  .site-navigation li:nth-child(5) {
+    --nav-accent: var(--electric);
+  }
+  .site-navigation a[aria-current="page"],
+  .site-navigation a:hover {
+    color: var(--nav-accent);
+    border-block-end-color: var(--nav-accent);
+    background: color-mix(in srgb, var(--nav-accent) 12%, transparent);
+  }
+  .site-navigation summary {
+    color: var(--rose);
+  }
+
+  .hero-journey h1 {
+    color: #ffb2d1;
+    background: linear-gradient(
+      158deg,
+      #fff1d5 8%,
+      #ffb3c5 42%,
+      #ff7eba 76%,
+      #c7a1ff 100%
+    );
+    background-clip: text;
+    -webkit-text-fill-color: transparent;
+  }
+  .hero-journey .section-eyebrow {
+    color: var(--coral);
+  }
+  .hero-journey__role {
+    color: #f7e4ff;
+  }
+  .hero-journey__value {
+    color: #d4c5e3;
+  }
+  .hero-journey__availability {
+    color: #c4b5d0;
+  }
+  .hero-journey__action {
+    color: var(--accent);
+  }
+  .hero-journey__action--primary,
+  .contact-link {
+    color: #291027;
+    border-color: #ff9dc1;
+    background: linear-gradient(115deg, #ffb783, #ff8fbb 72%, #e79ddd);
+    box-shadow:
+      0 6px 28px rgb(235 71 148 / 16%),
+      inset 0 1px rgb(255 230 210 / 50%);
+  }
+  .hero-journey__action--primary:hover,
+  .contact-link:hover {
+    color: #291027;
+    background: linear-gradient(115deg, #ffd298, #ffb3d0 72%, #f4c0e8);
+  }
+
+  #profile {
+    --chapter-accent: var(--rose);
+    --chapter-glow: 191 59 136;
+  }
+  #experience {
+    --chapter-accent: var(--violet);
+    --chapter-glow: 112 69 223;
+  }
+  #infrastructure {
+    --chapter-accent: var(--accent);
+    --chapter-glow: 39 94 183;
+  }
+  #selected-builds {
+    --chapter-accent: var(--coral);
+    --chapter-glow: 198 70 122;
+  }
+  #additional-work {
+    --chapter-accent: var(--rose);
+    --chapter-glow: 167 47 128;
+  }
+  #toolkit {
+    --chapter-accent: var(--violet);
+    --chapter-glow: 89 59 185;
+  }
+  #contact {
+    --chapter-accent: var(--coral);
+    --chapter-glow: 202 82 100;
+  }
+  .portfolio-section:not([data-layout="project-stage"]),
+  .portfolio-section[data-layout="full-diagram"],
+  .portfolio-section[data-layout="toolkit-field"] {
+    background:
+      radial-gradient(
+        ellipse at 100% 0%,
+        rgb(var(--chapter-glow) / 19%),
+        transparent 65%
+      ),
+      var(--surface);
+    border-color: color-mix(in srgb, var(--chapter-accent) 28%, transparent);
+    box-shadow:
+      var(--panel-shadow),
+      inset 0 1px color-mix(in srgb, var(--chapter-accent) 38%, transparent);
+  }
+  .portfolio-section > h2 {
+    color: color-mix(in srgb, var(--chapter-accent) 30%, var(--text));
+  }
+  .portfolio-section .section-eyebrow,
+  .profile-facts dt,
+  .project-evidence dt {
+    color: var(--chapter-accent);
+  }
+  .portfolio-section[data-layout="project-stage"] > h2,
+  .portfolio-section[data-layout="project-stage"] > .section-eyebrow {
+    text-shadow: 0 2px 24px #160b29;
+  }
+  .portfolio-section li::marker {
+    color: var(--chapter-accent);
+  }
+  .experience-timeline::before {
+    background: linear-gradient(var(--violet), var(--rose) 58%, transparent);
+  }
+  .experience-timeline > li::before {
+    background: var(--rose);
+    border-color: var(--rose);
+    box-shadow: 0 0 16px rgb(255 93 180 / 30%);
+  }
+  .experience-record__meta {
+    color: #c8aee9;
+  }
+  .systems-operations {
+    background: linear-gradient(
+      115deg,
+      rgb(137 65 155 / 19%),
+      rgb(75 48 116 / 14%)
+    );
+    border-color: var(--rose);
+  }
+  .systems-operations h3 {
+    color: #f5c5e9;
+  }
+
+  .portfolio-section .infrastructure-flow-figure {
+    background: linear-gradient(145deg, #20213e, #262044 55%, #321e43);
+    box-shadow: inset 0 1px rgb(176 158 255 / 15%);
+  }
+  .infrastructure-node {
+    --node-accent: var(--electric);
+  }
+  .infrastructure-node--ingress {
+    --node-accent: var(--accent);
+  }
+  .infrastructure-node--access {
+    --node-accent: var(--violet);
+  }
+  .infrastructure-node--services {
+    --node-accent: var(--rose);
+  }
+  .infrastructure-node--operations {
+    --node-accent: var(--coral);
+  }
+  .infrastructure-node,
+  .infrastructure-node--operations {
+    background: color-mix(in srgb, var(--node-accent) 13%, #201a35);
+    border-color: color-mix(in srgb, var(--node-accent) 50%, transparent);
+    box-shadow:
+      inset 0 2px var(--node-accent),
+      0 12px 28px rgb(11 4 30 / 22%);
+  }
+  .infrastructure-node strong {
+    color: color-mix(in srgb, var(--node-accent) 38%, white);
+  }
+  .infrastructure-node__sequence,
+  .infrastructure-boundary,
+  .infrastructure-node__guard {
+    color: var(--node-accent);
+  }
+  .infrastructure-boundary::before {
+    border-color: var(--node-accent);
+  }
+  .infrastructure-node__connector {
+    background: var(--node-accent);
+  }
+  .infrastructure-node__connector::after {
+    border-color: var(--node-accent);
+  }
+  .operations-proof {
+    background: linear-gradient(125deg, #302340, #20283e);
+    border-color: rgb(202 151 239 / 28%);
+  }
+  .operations-proof > h4 {
+    color: #f6c7dc;
+  }
+
+  .project-case-study:nth-child(3n + 1) {
+    --chapter-accent: var(--coral);
+    --chapter-glow: 196 76 125;
+  }
+  .project-case-study:nth-child(3n + 2) {
+    --chapter-accent: var(--electric);
+    --chapter-glow: 64 77 188;
+  }
+  .project-case-study:nth-child(3n) {
+    --chapter-accent: var(--violet);
+    --chapter-glow: 121 59 190;
+  }
+  .project-case-study,
+  .project-case-study[data-project-priority="supporting"],
+  .project-case-study[data-project-id][data-media-layout] {
+    background:
+      radial-gradient(
+        ellipse at 90% 0%,
+        rgb(var(--chapter-glow) / 22%),
+        transparent 62%
+      ),
+      var(--surface);
+    border-color: color-mix(in srgb, var(--chapter-accent) 30%, transparent);
+    box-shadow:
+      var(--panel-shadow),
+      inset 0 1px color-mix(in srgb, var(--chapter-accent) 46%, transparent);
+  }
+  .project-case-study__header {
+    border-inline-start-color: var(--chapter-accent);
+  }
+  .project-case-study__header h3 {
+    color: color-mix(in srgb, var(--chapter-accent) 30%, var(--text));
+  }
+  .project-media-gallery[data-media-layout="portrait-strip"] {
+    background: radial-gradient(
+      ellipse at 30% 0%,
+      #623457,
+      #392647 42%,
+      #252444 100%
+    );
+    border-color: rgb(240 137 195 / 28%);
+  }
+  .project-evidence > div {
+    border-color: color-mix(in srgb, var(--chapter-accent) 25%, transparent);
+  }
+  .project-link {
+    color: var(--chapter-accent);
+    background: color-mix(in srgb, var(--chapter-accent) 8%, transparent);
+    border-color: color-mix(in srgb, var(--chapter-accent) 45%, transparent);
+  }
+  .project-link:hover {
+    color: var(--text);
+    background: color-mix(in srgb, var(--chapter-accent) 19%, transparent);
+  }
+  .project-card:nth-child(even) {
+    --chapter-accent: var(--electric);
+  }
+  .project-card h3 {
+    color: color-mix(in srgb, var(--chapter-accent) 34%, var(--text));
+  }
+  .project-card {
+    border-color: color-mix(in srgb, var(--chapter-accent) 38%, transparent);
+  }
+  .toolkit-group {
+    --tool-color: var(--accent);
+  }
+  .toolkit-group:nth-child(2) {
+    --tool-color: var(--rose);
+  }
+  .toolkit-group:nth-child(3) {
+    --tool-color: var(--coral);
+  }
+  .toolkit-group:nth-child(4) {
+    --tool-color: var(--violet);
+  }
+  .toolkit-group h3 {
+    color: var(--tool-color);
+  }
+  .toolkit-item .brand-icon {
+    color: var(--tool-color);
+  }
+  .toolkit-item:hover {
+    background: color-mix(in srgb, var(--tool-color) 9%, transparent);
+  }
+  .contact-destination__copy {
+    color: #f7deed;
+  }
+  .contact-social-link {
+    color: #e4baf3;
+  }
+  .contact-social-link:hover {
+    color: var(--coral);
+  }
+
+  .drive-controls__dock,
+  .drive-controls__settings-trigger,
+  .journey-hud,
+  .drive-popover,
+  .drive-controls__audio-status {
+    background: linear-gradient(125deg, #2d193c, #1d1c35);
+    border-color: rgb(199 121 222 / 42%);
+    box-shadow:
+      0 8px 30px rgb(11 2 27 / 24%),
+      inset 0 1px rgb(255 162 226 / 8%);
+  }
+  .drive-start {
+    color: #201031;
+    border-color: #e49cd8;
+    background: linear-gradient(110deg, #f994c7, #cba5ff 65%, #9dccff);
+    box-shadow: inset 0 1px rgb(255 232 250 / 40%);
+  }
+  .drive-control-button {
+    background: #2a203e;
+    color: #d9c9e6;
+  }
+  .drive-control-button:hover {
+    background: #3d2853;
+    color: #ffa2d4;
+  }
+  .drive-control-button::after {
+    border-color: #6e437d;
+    background: #271633;
+  }
+  .drive-popover strong,
+  .drive-popover output {
+    color: var(--rose);
+  }
+  .drive-popover select {
+    background: #21182f;
+    border-color: #714d82;
+  }
+  .drive-popover input[type="range"] {
+    accent-color: var(--rose);
+  }
+  .journey-hud__route strong {
+    color: var(--coral);
+  }
+  .journey-hud__section {
+    color: var(--violet);
+  }
+  .journey-hud__arrival {
+    color: var(--coral);
+  }
+}
+
+@media (forced-colors: active) {
+  .hero-journey h1 {
+    background: none;
+    -webkit-text-fill-color: CanvasText;
+  }
+}
+@media print {
+  .hero-journey h1 {
+    background: none;
+    -webkit-text-fill-color: #111;
+  }
+}
diff --git a/src/styles/evolution.css b/src/styles/evolution.css
index 5461a58..178bf59 100644
--- a/src/styles/evolution.css
+++ b/src/styles/evolution.css
@@ -781,9 +781,9 @@ body {
   pointer-events: none;
   background: linear-gradient(
     90deg,
-    rgb(8 13 24 / 98%),
-    rgb(8 13 24 / 88%) 31%,
-    rgb(8 13 24 / 25%) 51%,
+    rgb(var(--night-ink-rgb, 8 13 24) / 98%),
+    rgb(var(--night-ink-rgb, 8 13 24) / 88%) 31%,
+    rgb(var(--night-ink-rgb, 8 13 24) / 25%) 51%,
     transparent 70%
   );
 }
@@ -816,9 +816,9 @@ body {
     inset-block-start: -70px;
     background: linear-gradient(
       180deg,
-      rgb(8 13 24 / 98%) 0%,
-      rgb(8 13 24 / 92%) 43%,
-      rgb(8 13 24 / 35%) 64%,
+      rgb(var(--night-ink-rgb, 8 13 24) / 98%) 0%,
+      rgb(var(--night-ink-rgb, 8 13 24) / 92%) 43%,
+      rgb(var(--night-ink-rgb, 8 13 24) / 35%) 64%,
       transparent 85%
     );
   }
@@ -852,9 +852,9 @@ body {
   .hero-journey::before {
     background: linear-gradient(
       180deg,
-      rgb(8 13 24 / 96%) 0%,
-      rgb(8 13 24 / 90%) 55%,
-      rgb(8 13 24 / 28%) 73%,
+      rgb(var(--night-ink-rgb, 8 13 24) / 96%) 0%,
+      rgb(var(--night-ink-rgb, 8 13 24) / 90%) 55%,
+      rgb(var(--night-ink-rgb, 8 13 24) / 28%) 73%,
       transparent 90%
     );
   }
@@ -863,9 +863,9 @@ body {
   .hero-journey::before {
     background: linear-gradient(
       180deg,
-      rgb(8 13 24 / 98%) 0%,
-      rgb(8 13 24 / 92%) 53%,
-      rgb(8 13 24 / 48%) 66%,
+      rgb(var(--night-ink-rgb, 8 13 24) / 98%) 0%,
+      rgb(var(--night-ink-rgb, 8 13 24) / 92%) 53%,
+      rgb(var(--night-ink-rgb, 8 13 24) / 48%) 66%,
       transparent 85%
     );
   }