Fix CSS issues and add omen re-roll function

less/chat.less

@@ -37,7 +37,7 @@
 .mgne-chat-card h3 {
   .caps-heading();
   margin: 0;
-  color: @label-ink;
+  color: @bone;
   font-size: 0.82rem;
 }
 
@@ -119,7 +119,7 @@
   .dice-formula {
     font-family: "Courier New", monospace;
     font-size: 0.72rem;
-    color: fade(@parchment, 65%);
+    color: fade(@parchment, 78%);
   }
   .dice-tooltip {
     font-size: 0.78rem;
@@ -131,7 +131,7 @@
     color: @gold-acid;
     font-size: 0.8rem;
   }
-  .part-formula { color: fade(@parchment, 70%); font-size: 0.72rem; }
+  .part-formula { color: fade(@parchment, 82%); font-size: 0.72rem; }
   .part-total   { color: @parchment; font-weight: 600; }
   .max          { color: lighten(@verdigris, 20%); }
   .min          { color: lighten(@ember-bright, 10%); }
@@ -242,6 +242,31 @@
   }
 }
 
+.mgne-omen-reroll-btn {
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  gap: 0.45rem;
+  width: 100%;
+  padding: 0.38rem 0.7rem;
+  border: 1px solid @gold-acid;
+  border-radius: @radius-sm;
+  background: darken(@gold-acid, 15%);
+  color: #fff5d0;
+  font-family: @font-display;
+  font-size: 0.78rem;
+  font-weight: 600;
+  letter-spacing: 0.06em;
+  cursor: pointer;
+  transition: background 0.15s, border-color 0.15s;
+
+  &:hover {
+    background: lighten(darken(@gold-acid, 15%), 8%);
+    border-color: lighten(@gold-acid, 12%);
+    color: #fff;
+  }
+}
+
 .chat-apply-actions {
   margin-top: 0.35rem;
 }