Move account actions into avatar menu

frontend/app/globals.css

@@ -175,30 +175,35 @@ body {
   margin-right: auto;
 }
 
-.signed-in {
-  font-size: 12px;
-  text-transform: uppercase;
-  letter-spacing: 0.08em;
-  color: var(--ink-muted);
-  padding: 6px 10px;
-  border-radius: 999px;
-  border: 1px dashed var(--border);
-  background: transparent;
-  cursor: pointer;
-}
-
 .signed-in-menu {
   position: relative;
   display: inline-flex;
   align-items: center;
 }
 
+.avatar-button {
+  width: 44px;
+  height: 44px;
+  border-radius: 50%;
+  border: 1px solid rgba(255, 255, 255, 0.12);
+  background: linear-gradient(130deg, rgba(28, 107, 255, 0.35), rgba(17, 214, 198, 0.25));
+  color: var(--ink);
+  font-weight: 700;
+  letter-spacing: 0.04em;
+  text-transform: uppercase;
+  display: inline-flex;
+  align-items: center;
+  justify-content: center;
+  box-shadow: 0 10px 20px rgba(28, 107, 255, 0.25);
+  cursor: pointer;
+}
+
 .signed-in-dropdown {
   position: absolute;
   top: calc(100% + 8px);
   right: 0;
-  min-width: 180px;
-  background: rgba(14, 20, 32, 0.95);
+  width: min(260px, 90vw);
+  background: rgba(14, 20, 32, 0.96);
   border: 1px solid var(--border);
   border-radius: 12px;
   padding: 8px;
@@ -206,17 +211,50 @@ body {
   z-index: 20;
 }
 
-.signed-in-dropdown a {
+.signed-in-header {
+  font-size: 11px;
+  letter-spacing: 0.06em;
+  text-transform: uppercase;
+  color: var(--ink-muted);
+  padding: 8px 10px 6px;
+  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
+}
+
+.signed-in-actions {
+  display: grid;
+  gap: 6px;
+  padding: 8px 4px 4px;
+}
+
+.signed-in-actions a,
+.signed-in-signout {
   display: block;
   padding: 8px 12px;
   border-radius: 10px;
   color: var(--ink);
   text-decoration: none;
-  text-align: center;
+  text-align: left;
+  background: rgba(255, 255, 255, 0.05);
+  border: 1px solid rgba(255, 255, 255, 0.08);
 }
 
-.signed-in-dropdown a:hover {
-  background: rgba(255, 255, 255, 0.08);
+.signed-in-signout {
+  cursor: pointer;
+  font: inherit;
+}
+
+.signed-in-actions a:hover,
+.signed-in-signout:hover {
+  background: rgba(255, 255, 255, 0.12);
+}
+
+.signed-in-build {
+  margin-top: 6px;
+  padding: 6px 10px 8px;
+  font-size: 11px;
+  color: var(--ink-muted);
+  text-align: left;
+  letter-spacing: 0.04em;
 }
 
 .theme-toggle {
@@ -1446,21 +1484,18 @@ button span {
   }
 
   .signed-in-menu {
-    width: 100%;
+    margin-left: auto;
   }
 
-  .signed-in {
-    width: 100%;
-    text-align: left;
-    white-space: nowrap;
-    overflow: hidden;
-    text-overflow: ellipsis;
+  .avatar-button {
+    width: 40px;
+    height: 40px;
   }
 
   .signed-in-dropdown {
-    position: static;
-    width: 100%;
-    margin-top: 8px;
+    right: 0;
+    left: auto;
+    width: min(260px, 92vw);
   }
 
   .header-actions {