fix(web): polish dashboard sidebar chrome and model card menus

Use momentum easing for sidebar transitions, switch sidebar typography to
sans-serif, replace the profile native select with the DS Select, and stop
clipping the Models page Use-as dropdown inside model cards.

Co-authored-by: Cursor <cursoragent@cursor.com>

web/src/App.tsx

@@ -544,13 +544,13 @@ export default function App() {
             id="app-sidebar"
             aria-label={t.app.navigation}
             className={cn(
-              "fixed top-0 left-0 z-50 flex h-dvh max-h-dvh w-64 min-h-0 flex-col",
+              "fixed top-0 left-0 z-50 flex h-dvh max-h-dvh w-64 min-h-0 flex-col font-sans",
               "border-r border-current/20",
               "bg-background-base",
-              "transition-[transform] duration-200 ease-out",
+              "transition-[transform] duration-200 ease-[cubic-bezier(0.23,1,0.32,1)]",
               mobileOpen ? "translate-x-0" : "-translate-x-full",
               "lg:sticky lg:top-0 lg:translate-x-0 lg:shrink-0 lg:overflow-hidden",
-              "lg:transition-[width] lg:duration-[600ms] lg:ease-[cubic-bezier(0.33,1.35,0.62,1)]",
+              "lg:transition-[width] lg:duration-300 lg:ease-[cubic-bezier(0.23,1,0.32,1)]",
               collapsed && "lg:w-14",
             )}
             style={{
@@ -636,7 +636,7 @@ export default function App() {
                   <span
                     className={cn(
                       "px-5 pt-2.5 pb-1",
-                      "font-mondwest text-display text-xs tracking-[0.12em] text-text-tertiary",
+                      "font-sans text-display text-xs tracking-[0.12em] text-text-tertiary",
                       isDesktopCollapsed && "lg:hidden",
                     )}
                     id="hermes-sidebar-plugin-nav-heading"
@@ -843,7 +843,7 @@ function SidebarNavLink({
           cn(
             "group/nav relative flex items-center gap-3",
             "px-5 py-2.5",
-            "font-mondwest text-display uppercase text-sm tracking-[0.12em]",
+            "font-sans text-display uppercase text-sm tracking-[0.12em]",
             "whitespace-nowrap transition-colors cursor-pointer",
             "focus-visible:outline-none focus-visible:ring-1 focus-visible:ring-midground",
             isActive
@@ -939,7 +939,7 @@ function SidebarSystemActions({
       <span
         className={cn(
           "px-5 pt-0.5 pb-0.5",
-          "font-mondwest text-display text-xs tracking-[0.12em] text-text-tertiary",
+          "font-sans text-display text-xs tracking-[0.12em] text-text-tertiary",
           collapsed && "lg:hidden",
         )}
       >
@@ -1009,7 +1009,7 @@ function SystemActionButton({
         className={cn(
           "group/action relative flex w-full items-center gap-3",
           "px-5 py-2.5",
-          "font-mondwest text-display text-xs tracking-[0.1em]",
+          "font-sans text-display text-xs tracking-[0.1em]",
           "whitespace-nowrap transition-colors cursor-pointer",
           "focus-visible:outline-none focus-visible:ring-1 focus-visible:ring-midground",
           busy
@@ -1183,7 +1183,7 @@ function SidebarTooltip({ anchor, label, warmRef }: SidebarTooltipProps) {
         "fixed z-[100] pointer-events-none",
         "px-2 py-1",
         "bg-background-base border border-current/20 shadow-lg",
-        "font-mondwest text-display text-xs tracking-[0.1em] text-midground uppercase",
+        "font-sans text-display text-xs tracking-[0.1em] text-midground uppercase",
       )}
       style={{
         top: rect.top + rect.height / 2,

web/src/components/LanguageSwitcher.tsx

@@ -78,7 +78,6 @@ export function LanguageSwitcher({ collapsed = false, dropUp = false }: Language
       >
         <span className="inline-flex items-center gap-1.5">
           <Typography
-            mondwest
             className="hidden sm:inline text-display tracking-wide text-xs"
           >
             {locale === "en" ? "EN" : current.name}
@@ -151,7 +150,7 @@ function LanguageSwitcherOptions({
             aria-selected={selected}
             className={cn(
               "w-full text-left px-3 py-1.5 flex items-center gap-2 cursor-pointer",
-              "font-mondwest text-display text-xs tracking-[0.08em]",
+              "font-sans text-display text-xs tracking-[0.08em]",
               "hover:bg-accent hover:text-accent-foreground transition-colors",
               selected ? "font-semibold text-foreground" : "text-muted-foreground",
             )}

web/src/components/ProfileSwitcher.tsx

@@ -1,4 +1,9 @@
+import { useMemo } from "react";
 import { Users } from "lucide-react";
+import {
+  Select,
+  SelectOption,
+} from "@nous-research/ui/ui/components/select";
 import { useProfileScope } from "@/contexts/useProfileScope";
 import { useI18n } from "@/i18n";
 import { cn } from "@/lib/utils";
@@ -10,14 +15,24 @@ import { cn } from "@/lib/utils";
  * Keys, Skills, MCP, Models) reads/writes the selected profile via the
  * fetchJSON ?profile= injection. Hidden when only one profile exists.
  */
-export function ProfileSwitcher({ collapsed }: { collapsed?: boolean }) {
+export function ProfileSwitcher({ collapsed }: ProfileSwitcherProps) {
   const { profile, currentProfile, profiles, setProfile } = useProfileScope();
   const { t } = useI18n();
 
+  const currentDashboardLabel = useMemo(
+    () =>
+      (t.app.currentProfileOption ?? "this dashboard ({name})").replace(
+        "{name}",
+        currentProfile || "default",
+      ),
+    [currentProfile, t.app.currentProfileOption],
+  );
+
   if (profiles.length < 2) return null;
 
   const managed = profile || currentProfile || "default";
   const isOther = !!profile && profile !== currentProfile;
+  const managingLabel = t.app.managingProfile ?? "Managing profile";
 
   return (
     <div
@@ -25,7 +40,7 @@ export function ProfileSwitcher({ collapsed }: { collapsed?: boolean }) {
         "flex items-center gap-2 border-b border-current/10 px-3 py-2",
         collapsed && "lg:justify-center lg:px-0",
       )}
-      title={t.app.managingProfile ?? "Managing profile"}
+      title={managingLabel}
     >
       <Users
         className={cn(
@@ -33,35 +48,38 @@ export function ProfileSwitcher({ collapsed }: { collapsed?: boolean }) {
           isOther ? "text-amber-300" : "text-text-tertiary",
         )}
       />
-      <select
-        aria-label={t.app.managingProfile ?? "Managing profile"}
+
+      <Select
         className={cn(
-          "h-7 w-full min-w-0 rounded-none border bg-background px-1 text-xs",
-          isOther
-            ? "border-amber-500/50 text-amber-300"
-            : "border-border text-text-secondary",
+          "min-w-0 flex-1",
           collapsed && "lg:hidden",
+          "[&_button]:h-7 [&_button]:border-border [&_button]:bg-background [&_button]:px-2 [&_button]:text-xs",
+          "[&_button]:font-sans [&_button]:normal-case [&_button]:tracking-normal",
+          "[&_[role=listbox]>div]:font-sans [&_[role=listbox]>div]:text-xs",
+          "[&_[role=listbox]>div]:normal-case [&_[role=listbox]>div]:tracking-normal",
+          isOther &&
+            "[&_button]:border-amber-500/50 [&_button]:text-amber-300",
         )}
+        id="hermes-profile-switcher"
+        onValueChange={setProfile}
         value={profile}
-        onChange={(e) => setProfile(e.target.value)}
       >
-        <option value="">
-          {(t.app.currentProfileOption ?? "this dashboard ({name})").replace(
-            "{name}",
-            currentProfile || "default",
-          )}
-        </option>
+        <SelectOption value="">{currentDashboardLabel}</SelectOption>
+
         {profiles
           .filter((name) => name !== currentProfile)
           .map((name) => (
-            <option key={name} value={name}>
+            <SelectOption key={name} value={name}>
               {name}
-            </option>
+            </SelectOption>
           ))}
-      </select>
-      {collapsed && (
-        <span className="sr-only">{managed}</span>
-      )}
+      </Select>
+
+      {collapsed && <span className="sr-only">{managed}</span>}
     </div>
   );
 }
+
+interface ProfileSwitcherProps {
+  collapsed?: boolean;
+}

web/src/components/SidebarFooter.tsx

@@ -25,7 +25,7 @@ export function SidebarFooter({ status }: SidebarFooterProps) {
         target="_blank"
         rel="noopener noreferrer"
         className={cn(
-          "font-mondwest text-display text-xs tracking-[0.12em] text-midground",
+          "font-sans text-display text-xs tracking-[0.12em] text-midground",
           "transition-opacity hover:opacity-90",
           "focus-visible:rounded-sm focus-visible:outline-none focus-visible:ring-1 focus-visible:ring-midground/40",
         )}

web/src/components/SidebarStatusStrip.tsx

@@ -31,7 +31,7 @@ export function SidebarStatusStrip({ status }: SidebarStatusStripProps) {
         "focus-visible:ring-inset",
       )}
     >
-      <div className="flex flex-col gap-1 font-mondwest text-xs leading-snug tracking-[0.08em]">
+      <div className="flex flex-col gap-1 font-sans text-xs leading-snug tracking-[0.08em]">
         <p className="break-words">
           <span className="text-text-tertiary">{gatewayStatusLabel}</span>{" "}
           <span className={cn("font-medium", gw.tone)}>{gw.label}</span>

web/src/components/ThemeSwitcher.tsx

@@ -81,7 +81,6 @@ export function ThemeSwitcher({ collapsed = false, dropUp = false }: ThemeSwitch
 
           {!collapsed && (
             <Typography
-              mondwest
               className="hidden sm:inline text-display tracking-wide text-xs"
             >
               {label}
@@ -134,7 +133,6 @@ export function ThemeSwitcher({ collapsed = false, dropUp = false }: ThemeSwitch
           >
             <div className="border-b border-current/20 px-3 py-2">
               <Typography
-                mondwest
                 className="text-display text-xs tracking-[0.12em] text-text-tertiary"
               >
                 {sheetTitle}
@@ -192,7 +190,6 @@ function ThemeSwitcherOptions({
 
             <div className="flex min-w-0 flex-1 flex-col gap-0.5">
               <Typography
-                mondwest
                 className="truncate text-display text-xs tracking-wide"
               >
                 {th.label}
@@ -235,7 +232,6 @@ function FontSection({ fontChoices, fontId, setFont }: FontSectionProps) {
         <span className="inline-flex items-center gap-1.5">
           <Type className="h-3 w-3 text-text-tertiary" />
           <Typography
-            mondwest
             className="text-display text-xs tracking-[0.12em] text-text-tertiary"
           >
             {t.theme?.fontTitle ?? "Font"}

web/src/pages/ModelsPage.tsx

@@ -268,7 +268,7 @@ function UseAsMenu({
   }, [open]);
 
   return (
-    <div className="relative" data-use-as-menu>
+    <div className={cn("relative", open && "z-20")} data-use-as-menu>
       <Button
         size="sm"
         outlined
@@ -392,7 +392,7 @@ function ModelCard({
 
   return (
     <Card
-      className={`min-w-0 max-w-full overflow-hidden${isMain ? " ring-1 ring-primary/40" : ""}`}
+      className={cn("min-w-0 max-w-full", isMain && "ring-1 ring-primary/40")}
     >
       <CardHeader className="pb-3">
         <div className="flex items-start justify-between gap-2">