Make dark theme lighter, match auto

web/index.html

@@ -15,9 +15,10 @@
     --accent2: #ff3d71;
     --warn:    #ffaa00;
     --ok:      #00e096;
-    --dim:     #3a4050;
+    /* updated to match theme-dark overrides, so auto:dark equals manual dark */
-    --text:    #c8d0dc;
+    --dim:     #7a8490;
-    --label:   #5a6480;
+    --text:    #f0f2f5;
+    --label:   #9faab7;
     --mono:    'Share Tech Mono', monospace;
     --sans:    'Barlow Condensed', sans-serif;
     --logo-color: #ffffff;
@@ -72,6 +73,7 @@
     --tap-right:        rgba(200,30,80,0.35);
   }
 
+
   /* ── Auto light (OS hint; explicit class overrides) ──────────────────────── */
   @media (prefers-color-scheme: light) {
     :root:not(.theme-dark) {