fix hero image blur + shared bg override + gauge reposition

- Remove totem-hero from shared gradient rule (was overriding image bg)
- Hero bg: object-position left center to anchor comet sweep correctly
- Signal gauge: vertically centred on right side of hero
- Hero ::after pseudo removed (replaced by image)
- Topbar rule separated from hero rule

app.py

@@ -330,7 +330,6 @@ TOTEM_CSS = """
 }
 
 .totem-topbar,
-.totem-hero,
 .totem-status-row,
 .totem-metrics-grid,
 .totem-lower-grid {
@@ -351,26 +350,15 @@ TOTEM_CSS = """
 
 .totem-hero {
   position: relative;
-  min-height: 222px;
-  padding: 44px 52px;
+  padding: 40px 52px;
   overflow: hidden;
   border: 1px solid rgba(242, 193, 78, 0.35);
-  background:
-    radial-gradient(circle at 85% 50%, rgba(138, 77, 255, 0.24), transparent 30%),
-    linear-gradient(120deg, rgba(13, 23, 51, 0.98), rgba(35, 15, 62, 0.92) 58%, rgba(8, 18, 45, 0.98));
+  background: #06091e;
+  min-height: 200px;
 }
 
 .totem-hero::after {
-  content: "";
-  position: absolute;
-  left: 18%;
-  right: 10%;
-  top: 44%;
-  height: 76px;
-  transform: rotate(-10deg);
-  border-radius: 999px;
-  filter: blur(12px);
-  background: linear-gradient(90deg, transparent, rgba(138, 77, 255, 0.45), rgba(242, 193, 78, 0.38), transparent);
+  display: none;
 }
 
 .totem-hero-title {
@@ -394,8 +382,9 @@ TOTEM_CSS = """
 
 .totem-signal-wrap {
   position: absolute;
-  right: 46px;
-  top: 31px;
+  right: 52px;
+  top: 50%;
+  transform: translateY(-50%);
   width: 160px;
   height: 160px;
 }
@@ -708,7 +697,7 @@ TOTEM_CSS = """
   width: 100%;
   height: 100%;
   object-fit: cover;
-  object-position: center;
+  object-position: left center;
   border-radius: inherit;
   z-index: 0;
 }