diff --git a/ui/src/components/AppShell.tsx b/ui/src/components/AppShell.tsx
index cda3189f..d28662a1 100644
--- a/ui/src/components/AppShell.tsx
+++ b/ui/src/components/AppShell.tsx
@@ -38,7 +38,7 @@ export function AppShell({
             </Link>
           )}
           <header className="mb-8">
-            <h1 className="font-heading text-lg font-medium">{title}</h1>
+            <h1 className="font-heading text-base font-medium">{title}</h1>
             {description && (
               <p className="mt-1 text-xs text-muted-foreground">{description}</p>
             )}
diff --git a/ui/src/components/agents/AgentThreadView.tsx b/ui/src/components/agents/AgentThreadView.tsx
index 1272dad2..570e7758 100644
--- a/ui/src/components/agents/AgentThreadView.tsx
+++ b/ui/src/components/agents/AgentThreadView.tsx
@@ -98,11 +98,11 @@ export function AgentThreadView({ thread }: AgentThreadViewProps) {
           </div>
         ) : isHydrating ? (
           <div className="flex flex-1 flex-col items-center justify-center gap-4 px-6">
-            <p className="text-sm text-[var(--ui-text-dim)]">Loading conversation…</p>
+            <p className="text-xs text-[var(--ui-text-dim)]">Loading conversation…</p>
           </div>
         ) : (
           <div className="flex flex-1 flex-col items-center justify-center gap-4 px-6">
-            <p className="text-sm text-[var(--ui-text-dim)]">
+            <p className="text-xs text-[var(--ui-text-dim)]">
               This thread has no messages yet.
             </p>
             <div className="w-full max-w-3xl">
diff --git a/ui/src/components/agents/AgentsSidebar.tsx b/ui/src/components/agents/AgentsSidebar.tsx
index 21aa11aa..390f700b 100644
--- a/ui/src/components/agents/AgentsSidebar.tsx
+++ b/ui/src/components/agents/AgentsSidebar.tsx
@@ -227,7 +227,7 @@ function ThreadGroup({
       <button
         type="button"
         onClick={() => setCollapsed((value) => !value)}
-        className="flex w-full items-center gap-1 px-2 py-1 text-left text-[10px] font-semibold tracking-wide text-[var(--ui-text-dim)] uppercase transition-colors hover:text-[var(--ui-text-muted)]"
+        className="flex w-full items-center gap-1 px-2 py-1 text-left text-[10px] font-medium tracking-wide text-[var(--ui-text-dim)] uppercase transition-colors hover:text-[var(--ui-text-muted)]"
         aria-expanded={!collapsed}
       >
         <ToggleIcon className="size-3" />
@@ -270,7 +270,7 @@ function ResolvedThreadGroup({
       <button
         type="button"
         onClick={() => setCollapsed((value) => !value)}
-        className="flex w-full items-center gap-1 px-2 py-1 text-left text-[10px] font-semibold tracking-wide text-[var(--ui-text-dim)] uppercase transition-colors hover:text-[var(--ui-text-muted)]"
+        className="flex w-full items-center gap-1 px-2 py-1 text-left text-[10px] font-medium tracking-wide text-[var(--ui-text-dim)] uppercase transition-colors hover:text-[var(--ui-text-muted)]"
         aria-expanded={!collapsed}
       >
         <ToggleIcon className="size-3" />
@@ -486,10 +486,10 @@ function ThreadRow({
           <Dialog.Backdrop className="fixed inset-0 z-50 bg-black/50 data-open:animate-in data-open:fade-in-0 data-closed:animate-out data-closed:fade-out-0" />
           <Dialog.Popup className="fixed top-1/2 left-1/2 z-50 w-[min(28rem,calc(100vw-2rem))] -translate-x-1/2 -translate-y-1/2 rounded-lg bg-popover p-6 text-popover-foreground shadow-md ring-1 ring-foreground/10 data-open:animate-in data-open:fade-in-0 data-open:zoom-in-95 data-closed:animate-out data-closed:fade-out-0 data-closed:zoom-out-95">
             <div className="flex flex-col gap-4">
-              <Dialog.Title className="text-base font-semibold">
+              <Dialog.Title className="text-sm font-medium">
                 Delete thread
               </Dialog.Title>
-              <Dialog.Description className="text-sm text-muted-foreground">
+              <Dialog.Description className="text-xs text-muted-foreground">
                 Delete "{thread.title}"? This cannot be undone.
               </Dialog.Description>
               <div className="mt-2 flex justify-end gap-2">
diff --git a/ui/src/components/agents/AgentsThreadsPage.tsx b/ui/src/components/agents/AgentsThreadsPage.tsx
index bf597f10..dae100b1 100644
--- a/ui/src/components/agents/AgentsThreadsPage.tsx
+++ b/ui/src/components/agents/AgentsThreadsPage.tsx
@@ -98,7 +98,7 @@ export function AgentsThreadsPage({
     <main className="flex min-w-0 flex-1 flex-col overflow-y-auto px-6 py-8">
       <div className="mx-auto flex w-full max-w-3xl flex-1 flex-col gap-6">
         <div>
-          <h1 className="font-heading text-lg font-medium text-[var(--ui-text)]">
+          <h1 className="font-heading text-base font-medium text-[var(--ui-text)]">
             Threads
           </h1>
           <p className="text-xs text-[var(--ui-text-muted)]">
diff --git a/ui/src/components/agents/AutomationEditor.tsx b/ui/src/components/agents/AutomationEditor.tsx
index 8392dd59..b9ba060b 100644
--- a/ui/src/components/agents/AutomationEditor.tsx
+++ b/ui/src/components/agents/AutomationEditor.tsx
@@ -139,7 +139,7 @@ export function AutomationEditor({ mode, schedule }: AutomationEditorProps) {
   return (
     <div className="flex min-w-0 flex-1 flex-col overflow-y-auto">
       <header className="flex items-center justify-between gap-3 px-6 py-4 max-md:pt-14">
-        <div className="flex min-w-0 items-center gap-1.5 text-sm text-[var(--ui-text-dim)]">
+        <div className="flex min-w-0 items-center gap-1.5 text-xs text-[var(--ui-text-dim)]">
           <Link
             to="/agents/automations"
             className="shrink-0 transition-colors hover:text-[var(--ui-text)]"
@@ -179,10 +179,10 @@ export function AutomationEditor({ mode, schedule }: AutomationEditorProps) {
           value={name}
           onChange={(e) => setName(e.target.value)}
           placeholder="Untitled automation"
-          className="w-full bg-transparent text-2xl font-semibold text-[var(--ui-text)] outline-none placeholder:text-[var(--ui-text-dim)]"
+          className="w-full bg-transparent text-base font-medium text-[var(--ui-text)] outline-none placeholder:text-[var(--ui-text-dim)]"
         />
 
-        <div className="mt-3 flex items-center gap-3 text-sm">
+        <div className="mt-3 flex items-center gap-3 text-xs">
           <div className="flex items-center gap-2">
             <Switch checked={enabled} onCheckedChange={setEnabled} />
             <span className="text-[var(--ui-text-muted)]">
@@ -255,7 +255,7 @@ export function AutomationEditor({ mode, schedule }: AutomationEditorProps) {
         </div>
 
         {errorMessage && (
-          <p className="mt-4 text-sm text-[var(--ui-danger)]">{errorMessage}</p>
+          <p className="mt-4 text-xs text-[var(--ui-danger)]">{errorMessage}</p>
         )}
       </div>
     </div>
@@ -264,7 +264,7 @@ export function AutomationEditor({ mode, schedule }: AutomationEditorProps) {
 
 function SectionLabel({ children }: { children: React.ReactNode }) {
   return (
-    <h2 className="mt-8 mb-2 text-sm font-medium text-[var(--ui-text-muted)]">
+    <h2 className="mt-8 mb-2 text-xs font-medium text-[var(--ui-text-muted)]">
       {children}
     </h2>
   )
@@ -310,7 +310,7 @@ function ModelPicker({
         type="button"
         disabled={disabled}
         onClick={() => setOpen((value) => !value)}
-        className="flex items-center gap-1 text-sm text-[var(--ui-text-muted)] transition-opacity hover:opacity-80 disabled:opacity-60"
+        className="flex items-center gap-1 text-xs text-[var(--ui-text-muted)] transition-opacity hover:opacity-80 disabled:opacity-60"
       >
         <span>{formatModelSelection(models, selection)}</span>
         {!disabled && <CaretDownIcon className="size-3.5 opacity-60" />}
@@ -331,7 +331,7 @@ function ModelPicker({
                   setOpen(false)
                 }}
                 className={cn(
-                  "flex w-full items-center gap-2 px-3 py-1.5 text-left text-sm whitespace-nowrap transition-colors hover:bg-[var(--ui-panel-2)]",
+                  "flex w-full items-center gap-2 px-3 py-1.5 text-left text-xs whitespace-nowrap transition-colors hover:bg-[var(--ui-panel-2)]",
                   selected
                     ? "text-[var(--ui-text)]"
                     : "text-[var(--ui-text-muted)]"
diff --git a/ui/src/components/agents/AutomationsList.tsx b/ui/src/components/agents/AutomationsList.tsx
index 492b8907..239485e4 100644
--- a/ui/src/components/agents/AutomationsList.tsx
+++ b/ui/src/components/agents/AutomationsList.tsx
@@ -42,10 +42,10 @@ export function AutomationsList() {
   return (
     <div className="flex min-w-0 flex-1 flex-col overflow-y-auto">
       <div className="mx-auto w-full max-w-4xl px-6 py-8 max-md:pt-16">
-        <h1 className="text-2xl font-semibold text-[var(--ui-text)]">
+        <h1 className="text-base font-medium text-[var(--ui-text)]">
           Automations
         </h1>
-        <p className="mt-1 text-sm text-[var(--ui-text-muted)]">
+        <p className="mt-1 text-xs text-[var(--ui-text-muted)]">
           Run Open SWE on a recurring schedule. Each run starts a fresh agent
           thread.
         </p>
@@ -58,7 +58,7 @@ export function AutomationsList() {
         </div>
 
         <div className="mt-8 flex items-center justify-between">
-          <span className="text-sm font-medium text-[var(--ui-text-muted)]">
+          <span className="text-xs font-medium text-[var(--ui-text-muted)]">
             {total} {total === 1 ? "automation" : "automations"}
           </span>
           <Link to="/agents/automations/new" className={buttonVariants()}>
@@ -102,7 +102,7 @@ function StatCard({
       <div className="text-xs text-[var(--ui-text-dim)]">{label}</div>
       <div
         className={cn(
-          "mt-1 text-2xl font-semibold",
+          "mt-1 text-lg font-medium",
           highlight ? "text-[var(--ui-danger)]" : "text-[var(--ui-text)]"
         )}
       >
@@ -121,7 +121,7 @@ function EmptyState() {
       <h3 className="mt-4 text-sm font-medium text-[var(--ui-text)]">
         No automations yet
       </h3>
-      <p className="mt-1 max-w-sm text-sm text-[var(--ui-text-muted)]">
+      <p className="mt-1 max-w-sm text-xs text-[var(--ui-text-muted)]">
         Schedule Open SWE to run on a recurring cadence — review code, triage
         issues, or keep docs up to date.
       </p>
diff --git a/ui/src/components/agents/OnboardingDialog.tsx b/ui/src/components/agents/OnboardingDialog.tsx
index 457d7361..65e2befc 100644
--- a/ui/src/components/agents/OnboardingDialog.tsx
+++ b/ui/src/components/agents/OnboardingDialog.tsx
@@ -100,16 +100,16 @@ export function OnboardingDialog() {
         <Dialog.Popup className="fixed top-1/2 left-1/2 z-50 w-[min(28rem,calc(100vw-2rem))] -translate-x-1/2 -translate-y-1/2 rounded-lg bg-popover p-6 text-popover-foreground shadow-md ring-1 ring-foreground/10 data-open:animate-in data-open:fade-in-0 data-open:zoom-in-95 data-closed:animate-out data-closed:fade-out-0 data-closed:zoom-out-95">
           {step === "model" ? (
             <div className="flex flex-col gap-4">
-              <Dialog.Title className="text-base font-semibold">
+              <Dialog.Title className="text-sm font-medium">
                 Choose your default model
               </Dialog.Title>
-              <Dialog.Description className="text-sm text-muted-foreground">
+              <Dialog.Description className="text-xs text-muted-foreground">
                 Pick the model Open SWE uses when you don't specify one. You can
                 change this anytime in your settings.
               </Dialog.Description>
               <div className="flex flex-col gap-3">
                 <div className="flex items-center justify-between gap-3">
-                  <span className="text-sm font-medium">Default model</span>
+                  <span className="text-xs font-medium">Default model</span>
                   <Select
                     value={modelId}
                     onValueChange={(v) => v && setModelId(v)}
@@ -127,7 +127,7 @@ export function OnboardingDialog() {
                   </Select>
                 </div>
                 <div className="flex items-center justify-between gap-3">
-                  <span className="text-sm font-medium">Reasoning effort</span>
+                  <span className="text-xs font-medium">Reasoning effort</span>
                   <Select
                     value={effort}
                     onValueChange={(v) => v && setEffort(v)}
@@ -171,11 +171,11 @@ export function OnboardingDialog() {
             <div className="flex flex-col gap-4">
               <div className="flex items-center gap-3">
                 <IoLogoSlack className="size-6 shrink-0 text-muted-foreground" />
-                <Dialog.Title className="text-base font-semibold">
+                <Dialog.Title className="text-sm font-medium">
                   Connect your Slack account
                 </Dialog.Title>
               </div>
-              <Dialog.Description className="text-sm text-muted-foreground">
+              <Dialog.Description className="text-xs text-muted-foreground">
                 Connect Slack so that when you tag Open SWE, it can resolve your
                 GitHub account. We use the email Slack verifies, which also lets
                 Linear mentions resolve to you.
diff --git a/ui/src/components/agents/ReviewChat.tsx b/ui/src/components/agents/ReviewChat.tsx
index 2b31c82c..f2389434 100644
--- a/ui/src/components/agents/ReviewChat.tsx
+++ b/ui/src/components/agents/ReviewChat.tsx
@@ -226,7 +226,7 @@ function useConversations(key: string) {
 function EmptyState({ onPick }: { onPick: (prompt: string) => void }) {
   return (
     <div className="flex flex-1 flex-col gap-4 p-4">
-      <p className="text-sm text-foreground">
+      <p className="text-[13px] text-foreground">
         I've reviewed this PR. Ask me about the diff, the findings, or the
         surrounding code — I have read-only access to the repository.
       </p>
@@ -239,7 +239,7 @@ function EmptyState({ onPick }: { onPick: (prompt: string) => void }) {
             key={prompt}
             type="button"
             onClick={() => onPick(prompt)}
-            className="flex items-center gap-2 rounded-md px-2 py-1.5 text-left text-sm text-foreground hover:bg-muted/60"
+            className="flex items-center gap-2 rounded-md px-2 py-1.5 text-left text-[13px] text-foreground hover:bg-muted/60"
           >
             <SparkleIcon className="size-4 shrink-0 text-muted-foreground" />
             {prompt}
@@ -327,7 +327,7 @@ function ChatBody({
               >
                 <div
                   className={cn(
-                    "text-sm text-foreground",
+                    "text-[13px] text-foreground",
                     isUser
                       ? "max-w-[85%] rounded-lg bg-muted px-3 py-2"
                       : "w-full",
@@ -346,7 +346,7 @@ function ChatBody({
           })}
           {busy && (
             <div className="flex justify-start">
-              <div className="px-3 py-2 text-sm text-muted-foreground">
+              <div className="px-3 py-2 text-xs text-muted-foreground">
                 Thinking…
               </div>
             </div>
diff --git a/ui/src/components/agents/ReviewSidebar.tsx b/ui/src/components/agents/ReviewSidebar.tsx
index e2e615eb..079f2c06 100644
--- a/ui/src/components/agents/ReviewSidebar.tsx
+++ b/ui/src/components/agents/ReviewSidebar.tsx
@@ -93,7 +93,7 @@ export function ReviewSidebarPanel({ data }: { data: ReviewSidebarData }) {
   return (
     <div className="flex min-h-0 flex-1 flex-col pb-2">
       <div className="flex items-center justify-between gap-2 px-4 py-1">
-        <span className="text-[10px] font-semibold tracking-wide text-[var(--ui-text-dim)] uppercase">
+        <span className="text-[10px] font-medium tracking-wide text-[var(--ui-text-dim)] uppercase">
           {data.title}
         </span>
         {hasGroups && (
diff --git a/ui/src/components/agents/ScheduleTriggerPicker.tsx b/ui/src/components/agents/ScheduleTriggerPicker.tsx
index f1ee16ac..d96519df 100644
--- a/ui/src/components/agents/ScheduleTriggerPicker.tsx
+++ b/ui/src/components/agents/ScheduleTriggerPicker.tsx
@@ -41,7 +41,7 @@ export function ScheduleTriggerPicker({
       <button
         type="button"
         onClick={() => setOpen((value) => !value)}
-        className="flex w-full items-center gap-2 rounded-lg px-3 py-2.5 text-sm text-[var(--ui-text-muted)] transition-colors hover:bg-[var(--ui-panel-2)] hover:text-[var(--ui-text)]"
+        className="flex w-full items-center gap-2 rounded-lg px-3 py-2.5 text-xs text-[var(--ui-text-muted)] transition-colors hover:bg-[var(--ui-panel-2)] hover:text-[var(--ui-text)]"
       >
         <PlusIcon className="size-4" />
         {triggerLabel}
@@ -49,7 +49,7 @@ export function ScheduleTriggerPicker({
 
       {open && (
         <div className="absolute top-full left-0 z-50 mt-1 w-72 overflow-hidden rounded-xl border border-[var(--ui-border)] bg-[var(--ui-surface)] py-1 shadow-lg">
-          <div className="flex items-center gap-2 px-3 py-1.5 text-[11px] font-semibold tracking-wide text-[var(--ui-text-dim)] uppercase">
+          <div className="flex items-center gap-2 px-3 py-1.5 text-[11px] font-medium tracking-wide text-[var(--ui-text-dim)] uppercase">
             <ClockIcon className="size-3.5" />
             Scheduled
           </div>
@@ -62,7 +62,7 @@ export function ScheduleTriggerPicker({
                 setOpen(false)
               }}
               className={cn(
-                "flex w-full items-center gap-2 px-3 py-2 text-left text-sm text-[var(--ui-text-muted)] transition-colors hover:bg-[var(--ui-panel-2)] hover:text-[var(--ui-text)]"
+                "flex w-full items-center gap-2 px-3 py-2 text-left text-xs text-[var(--ui-text-muted)] transition-colors hover:bg-[var(--ui-panel-2)] hover:text-[var(--ui-text)]"
               )}
             >
               <span className="flex-1">{option.label}</span>
diff --git a/ui/src/components/agents/messages/AgentMessage.tsx b/ui/src/components/agents/messages/AgentMessage.tsx
index bc23d822..df3a8f0d 100644
--- a/ui/src/components/agents/messages/AgentMessage.tsx
+++ b/ui/src/components/agents/messages/AgentMessage.tsx
@@ -185,7 +185,7 @@ export function AgentMessage({
                 {isExpanded && (
                   <div className="pt-1 pb-1 space-y-0.5">
                     {item.chunks.map((chunk, chunkIndex) => (
-                      <div key={chunk.toolCallId || `explored-chunk-${item.id}-${chunkIndex}`} className="flex-1 min-w-0 text-gray-500">
+                      <div key={chunk.toolCallId || `explored-chunk-${item.id}-${chunkIndex}`} className="flex-1 min-w-0 text-[color:var(--ui-text-dim)]">
                         <ToolExecution
                           chunk={chunk}
                           projectPath={projectPath}
diff --git a/ui/src/components/agents/messages/ChunkRenderer.tsx b/ui/src/components/agents/messages/ChunkRenderer.tsx
index a2d6c9b7..5b6fc70e 100644
--- a/ui/src/components/agents/messages/ChunkRenderer.tsx
+++ b/ui/src/components/agents/messages/ChunkRenderer.tsx
@@ -23,7 +23,7 @@ export function ChunkRenderer({
       return <span className="text-red-400">{chunk.text}</span>;
     case "list":
       return (
-        <div className="text-gray-300 ml-2">
+        <div className="text-[color:var(--ui-text-muted)] ml-2">
           {chunk.lines.map((line, i) => (
             <div key={i}>- {line}</div>
           ))}
diff --git a/ui/src/components/agents/ported/CloudPromptBar.tsx b/ui/src/components/agents/ported/CloudPromptBar.tsx
index f0dbcc8c..eae135ff 100644
--- a/ui/src/components/agents/ported/CloudPromptBar.tsx
+++ b/ui/src/components/agents/ported/CloudPromptBar.tsx
@@ -345,7 +345,7 @@ export const CloudPromptBar = memo(function CloudPromptBarComponent({
       >
         {isDragOver && (
           <div className="pointer-events-none absolute inset-0 z-20 flex items-center justify-center rounded-2xl bg-[var(--ui-surface)]/80 backdrop-blur-sm">
-            <span className="rounded-md bg-[var(--ui-panel-2)] px-3 py-1.5 text-sm font-medium text-[color:var(--ui-accent)]">
+            <span className="rounded-md bg-[var(--ui-panel-2)] px-3 py-1.5 text-xs font-medium text-[color:var(--ui-accent)]">
               Drop images here
             </span>
           </div>
diff --git a/ui/src/components/agents/ported/Markdown.tsx b/ui/src/components/agents/ported/Markdown.tsx
index 279bb412..e258cf04 100644
--- a/ui/src/components/agents/ported/Markdown.tsx
+++ b/ui/src/components/agents/ported/Markdown.tsx
@@ -32,17 +32,17 @@ const STREAMDOWN_ANIMATED = {
 
 const STREAMDOWN_COMPONENTS = {
   h1: ({ children }: { children?: ReactNode }) => (
-    <div className="text-[color:var(--ui-accent)] text-[20px] font-semibold mt-4 mb-2 tracking-tight">
+    <div className="text-[color:var(--ui-text)] text-[15px] font-medium mt-4 mb-1.5 tracking-tight">
       {children}
     </div>
   ),
   h2: ({ children }: { children?: ReactNode }) => (
-    <div className="text-[color:var(--ui-accent)] text-[17px] font-semibold mt-3 mb-2 tracking-tight">
+    <div className="text-[color:var(--ui-text)] text-[14px] font-medium mt-3 mb-1.5 tracking-tight">
       {children}
     </div>
   ),
   h3: ({ children }: { children?: ReactNode }) => (
-    <div className="text-[color:var(--ui-accent)] text-[15px] font-semibold mt-3 mb-1">
+    <div className="text-[color:var(--ui-text)] text-[13px] font-medium mt-3 mb-1">
       {children}
     </div>
   ),
diff --git a/ui/src/routes/admin.tsx b/ui/src/routes/admin.tsx
index 90cda443..e21941cc 100644
--- a/ui/src/routes/admin.tsx
+++ b/ui/src/routes/admin.tsx
@@ -212,7 +212,7 @@ function UserMappingsSection({ enabled }: { enabled: boolean }) {
             items.map((m: UserMapping) => (
               <div
                 key={m.github_login}
-                className="flex items-center justify-between gap-2 border-b border-border py-1.5 text-sm last:border-b-0"
+                className="flex items-center justify-between gap-2 border-b border-border py-1.5 text-xs last:border-b-0"
               >
                 <div className="flex min-w-0 flex-col">
                   <span className="truncate font-medium">{m.github_login}</span>
diff --git a/ui/src/routes/agents/automations/$scheduleId.tsx b/ui/src/routes/agents/automations/$scheduleId.tsx
index 5e49173d..f8f24335 100644
--- a/ui/src/routes/agents/automations/$scheduleId.tsx
+++ b/ui/src/routes/agents/automations/$scheduleId.tsx
@@ -28,12 +28,12 @@ function EditAutomationPage() {
 
   return (
     <div className="mx-auto w-full max-w-3xl px-6 py-16 text-center">
-      <p className="text-sm text-[var(--ui-text-muted)]">
+      <p className="text-xs text-[var(--ui-text-muted)]">
         This automation could not be found.
       </p>
       <Link
         to="/agents/automations"
-        className="mt-3 inline-block text-sm text-[var(--ui-accent)] hover:underline"
+        className="mt-3 inline-block text-xs text-[var(--ui-accent)] hover:underline"
       >
         Back to Automations
       </Link>
diff --git a/ui/src/routes/agents/reviews/$owner.$repo.$number.tsx b/ui/src/routes/agents/reviews/$owner.$repo.$number.tsx
index ed87228c..0024204d 100644
--- a/ui/src/routes/agents/reviews/$owner.$repo.$number.tsx
+++ b/ui/src/routes/agents/reviews/$owner.$repo.$number.tsx
@@ -175,7 +175,10 @@ function ReviewDetailPage() {
         <span className="inline-flex min-w-0 items-center gap-1.5 truncate">
           <GitPullRequestIcon className="size-3.5 shrink-0 text-muted-foreground" />
           <span className="truncate font-medium">
-            {owner}/{repo}#{number}
+            {owner}/{repo}
+            <span className="ml-1.5 font-normal text-muted-foreground">
+              #{number}
+            </span>
             {detail.data ? ` ${detail.data.pr.title}` : ""}
           </span>
         </span>
@@ -632,7 +635,7 @@ function PrHeader({ detail }: { detail: ReviewDetail }) {
         <GitPullRequestIcon className="size-3" />
         {pr.state}
       </span>
-      <h1 className="mt-2 text-lg font-medium">
+      <h1 className="mt-2 text-base font-medium">
         <a
           href={detail.url}
           target="_blank"
diff --git a/ui/src/routes/agents/reviews/index.tsx b/ui/src/routes/agents/reviews/index.tsx
index c4a12d21..33262378 100644
--- a/ui/src/routes/agents/reviews/index.tsx
+++ b/ui/src/routes/agents/reviews/index.tsx
@@ -66,7 +66,7 @@ function ReviewsPage() {
   return (
     <main className="min-w-0 flex-1 overflow-y-auto">
       <div className="mx-auto max-w-3xl px-6 py-8">
-        <h1 className="font-heading text-lg font-medium text-[var(--ui-text)]">
+        <h1 className="font-heading text-base font-medium text-[var(--ui-text)]">
           PR Reviews
         </h1>
         <p className="mt-1 text-xs text-[var(--ui-text-muted)]">
diff --git a/ui/src/routes/usage.tsx b/ui/src/routes/usage.tsx
index 5bc11be0..bb93e3b6 100644
--- a/ui/src/routes/usage.tsx
+++ b/ui/src/routes/usage.tsx
@@ -98,7 +98,7 @@ function UsagePage() {
             Failed to load usage data: {leaderboard.error.message}
           </p>
         ) : !leaderboard.data?.rows.length ? (
-          <div className="p-6 text-center text-sm text-muted-foreground">
+          <div className="p-6 text-center text-xs text-muted-foreground">
             No Open SWE Agent usage has been recorded for{" "}
             {PERIOD_LABELS[activePeriod].toLowerCase()} yet.
           </div>
@@ -128,7 +128,7 @@ function UsagePage() {
         ) : leaderboard.data?.reviewer_stats ? (
           <ReviewerStats stats={leaderboard.data.reviewer_stats} />
         ) : (
-          <div className="p-6 text-center text-sm text-muted-foreground">
+          <div className="p-6 text-center text-xs text-muted-foreground">
             No reviewer stats have been recorded for{" "}
             {PERIOD_LABELS[activePeriod].toLowerCase()} yet.
           </div>
@@ -147,7 +147,7 @@ function UsageTable({
 }) {
   return (
     <div className="overflow-x-auto">
-      <table className="w-full min-w-[760px] text-sm">
+      <table className="w-full min-w-[760px] text-xs">
         <thead className="border-b border-border text-xs text-muted-foreground">
           <tr>
             <th className="w-14 px-4 py-3 text-left font-normal">Rank</th>
@@ -238,7 +238,7 @@ function ReviewerStats({ stats }: { stats: ReviewerStatsPayload }) {
         {cards.map((card) => (
           <div key={card.label} className="rounded-md border border-border p-3">
             <div className="text-xs text-muted-foreground">{card.label}</div>
-            <div className="mt-1 text-xl font-medium tabular-nums">
+            <div className="mt-1 text-lg font-medium tabular-nums">
               {formatNumber(card.value)}
             </div>
             <div className="mt-1 text-xs text-muted-foreground">
@@ -277,7 +277,7 @@ function CounterList({
     <div>
       <h3 className="text-xs font-medium text-muted-foreground">{title}</h3>
       {rows.length ? (
-        <ul className="mt-2 space-y-2 text-sm">
+        <ul className="mt-2 space-y-2 text-xs">
           {rows.map((row) => (
             <li
               key={row.name}
diff --git a/ui/src/styles.css b/ui/src/styles.css
index 88b014f0..99370c68 100644
--- a/ui/src/styles.css
+++ b/ui/src/styles.css
@@ -127,6 +127,6 @@
     @apply bg-background text-foreground;
     }
   html {
-    @apply font-sans;
+    @apply font-sans antialiased;
     }
 }
\ No newline at end of file
diff --git a/ui/src/styles/agents.css b/ui/src/styles/agents.css
index 411810b5..c19a3967 100644
--- a/ui/src/styles/agents.css
+++ b/ui/src/styles/agents.css
@@ -44,6 +44,9 @@
   background: var(--ui-bg);
   font-size: 13px;
   line-height: 1.45;
+  -webkit-font-smoothing: antialiased;
+  -moz-osx-font-smoothing: grayscale;
+  text-rendering: optimizeLegibility;
 }
 
 .agents-ui * {