feat(design): violet accent + pastel neon glow for light mode

artifacts/toolrate/src/index.css

@@ -99,7 +99,7 @@
   --popover-foreground: 222 47% 11%;
   --popover-border: 214 32% 91%;
 
-  --primary: 14 100% 57%; /* Sharp Builder Orange */
+  --primary: 262 83% 58%; /* Violet accent */
   --primary-foreground: 0 0% 100%;
 
   --secondary: 210 40% 96%;
@@ -115,17 +115,17 @@
   --destructive-foreground: 0 0% 100%;
 
   --input: 214 32% 91%;
-  --ring: 14 100% 57%;
+  --ring: 262 83% 58%;
   
-  --chart-1: 14 100% 57%;
+  --chart-1: 262 83% 58%;
   --chart-2: 222 47% 11%;
-  --chart-3: 187 100% 42%;
+  --chart-3: 264 80% 70%;
   --chart-4: 43 100% 50%;
   --chart-5: 280 80% 50%;
 
-  --glow-1: 187 100% 50%;  /* cyan */
-  --glow-2: 265 100% 68%;  /* violet */
-  --glow-3: 14 100% 57%;   /* orange (primary) */
+  --glow-1: 262 88% 62%;  /* violet (accent) */
+  --glow-2: 285 92% 72%;  /* magenta/violet */
+  --glow-3: 214 92% 62%;  /* lavender-blue */
 
   --app-font-sans: 'Inter', sans-serif;
   --app-font-serif: Georgia, serif;
@@ -227,6 +227,10 @@
   --chart-4: 43 100% 50%;
   --chart-5: 280 80% 50%;
 
+  --glow-1: 187 100% 50%;  /* cyan */
+  --glow-2: 265 100% 68%;  /* violet */
+  --glow-3: 14 100% 57%;   /* orange (primary) */
+
   --shadow-2xs: 0px 1px 2px 0px rgba(0,0,0,0.5);
   --shadow-xs: 0px 1px 3px 0px rgba(0,0,0,0.5);
   --shadow-sm: 0px 2px 4px 0px rgba(0,0,0,0.5), 0px 1px 2px -1px rgba(0,0,0,0.5);
@@ -497,3 +501,42 @@
     .neon-spin { animation: none; }
   }
 }
+
+/* ------------------------------------------------------------------ */
+/* LIGHT MODE — violet neon tuning
+ * Binds glow highlights so they read clearly on white/light surfaces
+ * instead of washing out to grey. Scoped to light only; dark untouched.
+ * ------------------------------------------------------------------ */
+:root:not(.dark) .neon-glow {
+  box-shadow:
+    0 0 0 1px hsl(var(--glow-1) / 0.5),
+    0 0 22px -3px hsl(var(--glow-1) / 0.55),
+    0 0 52px -10px hsl(var(--glow-2) / 0.4);
+}
+
+:root:not(.dark) .neon-glow-primary {
+  box-shadow:
+    0 0 0 1px hsl(var(--primary) / 0.55),
+    0 0 20px -2px hsl(var(--primary) / 0.5),
+    0 0 44px -10px hsl(var(--primary) / 0.4);
+}
+
+:root:not(.dark) .neon-bar {
+  box-shadow:
+    0 0 10px 0 hsl(var(--glow-1) / 0.55),
+    0 0 22px -2px hsl(var(--glow-2) / 0.5);
+}
+
+/* Pastel ambient wash behind the light page */
+:root:not(.dark) body {
+  background-image:
+    radial-gradient(1200px 800px at 8% -6%, hsl(var(--glow-1) / 0.09), transparent 60%),
+    radial-gradient(1100px 700px at 100% 0%, hsl(var(--glow-2) / 0.08), transparent 55%),
+    radial-gradient(1000px 800px at 50% 110%, hsl(var(--glow-3) / 0.06), transparent 60%);
+  background-attachment: fixed;
+}
+
+/* Cards get a subtle violet-tinted border for more surface depth */
+:root:not(.dark) .bg-card {
+  border-color: hsl(var(--glow-1) / 0.18);
+}