diff --git a/src/client/components/DefaultCatchBoundary.tsx b/src/client/components/DefaultCatchBoundary.tsx
index c69af04..6233933 100644
--- a/src/client/components/DefaultCatchBoundary.tsx
+++ b/src/client/components/DefaultCatchBoundary.tsx
@@ -72,18 +72,18 @@ export function DefaultCatchBoundary({ error }: ErrorComponentProps) {
           onClick={() => {
             void router.invalidate();
           }}
-          className="btn btn-neutral btn-sm uppercase"
+          className="btn btn-primary btn-sm"
         >
           Try Again
         </button>
         {isRoot ? (
-          <Link to="/" className="btn btn-neutral btn-sm uppercase">
+          <Link to="/" className="btn btn-sm">
             Home
           </Link>
         ) : (
           <Link
             to="/"
-            className="btn btn-neutral btn-sm uppercase"
+            className="btn btn-sm"
             onClick={(e) => {
               e.preventDefault();
               window.history.back();
diff --git a/src/client/components/Sidebar.tsx b/src/client/components/Sidebar.tsx
index c004375..9e0213b 100644
--- a/src/client/components/Sidebar.tsx
+++ b/src/client/components/Sidebar.tsx
@@ -1,101 +1,200 @@
 import { Link } from "@tanstack/react-router";
-import { X } from "lucide-react";
-import { getProjectNavGroups } from "@/client/navigation/items";
+import type { LinkOptions } from "@tanstack/react-router";
+import type { ComponentType } from "react";
+import {
+  CircleHelp,
+  CreditCard,
+  LogOut,
+  Settings,
+  User,
+  X,
+} from "lucide-react";
+import { aiNavItem, getProjectNavGroups } from "@/client/navigation/items";
 import { ProjectSwitcher } from "@/client/features/projects/ProjectSwitcher";
+import { signOutAndRedirect, useSession } from "@/lib/auth-client";
+import { isHostedClientAuthMode } from "@/lib/auth-mode";
+import { BILLING_ROUTE } from "@/shared/billing";
 
 interface SidebarProps {
-  projectId: string;
+  projectId: string | null;
   onNavigate?: () => void;
   onClose?: () => void;
 }
 
+const navItemBaseClass =
+  "relative flex items-center gap-2.5 rounded-md px-3 py-1.5 text-sm text-base-content/70";
+
+const navItemClass = `${navItemBaseClass} transition-colors hover:bg-base-300/50 hover:text-base-content`;
+
+const navItemActiveProps = {
+  className: "bg-base-300/50 font-medium text-base-content",
+};
+
+function SidebarNavLink({
+  icon: Icon,
+  label,
+  onNavigate,
+  linkProps,
+}: {
+  icon: ComponentType<{ className?: string }>;
+  label: string;
+  onNavigate?: () => void;
+  linkProps: LinkOptions;
+}) {
+  return (
+    <Link
+      {...linkProps}
+      onClick={onNavigate}
+      activeOptions={{ exact: false, includeSearch: false }}
+      className={navItemClass}
+      activeProps={navItemActiveProps}
+    >
+      {({ isActive }: { isActive: boolean }) => (
+        <>
+          {isActive ? (
+            <div className="absolute left-0 top-1 bottom-1 w-[3px] rounded-r-full bg-primary" />
+          ) : null}
+          <Icon className="h-4 w-4 shrink-0" />
+          <span className="truncate">{label}</span>
+        </>
+      )}
+    </Link>
+  );
+}
+
 export function Sidebar({ projectId, onNavigate, onClose }: SidebarProps) {
-  const navGroups = getProjectNavGroups(projectId);
+  const navGroups = projectId ? getProjectNavGroups(projectId) : [];
 
   return (
-    <div className="sidebar w-64 border-r border-base-300 h-full bg-base-100 flex flex-col">
-      {/* Header */}
-      <div className="px-4 py-4 border-b border-base-300 flex items-center justify-between">
-        <span className="font-semibold text-base-content">OpenSEO</span>
-        {onClose && (
+    <div className="flex h-full w-60 flex-col bg-base-200">
+      <div className="flex items-center justify-between px-4 pb-2 pt-3">
+        <Link
+          to="/"
+          onClick={onNavigate}
+          className="text-base font-semibold text-base-content"
+        >
+          OpenSEO
+        </Link>
+        {onClose ? (
           <button
+            type="button"
             onClick={onClose}
             className="btn btn-ghost btn-sm btn-circle"
             aria-label="Close sidebar"
           >
             <X className="h-5 w-5" />
           </button>
-        )}
+        ) : null}
       </div>
 
-      {/* Project picker */}
-      <div className="px-3 py-3 border-b border-base-300">
+      <div className="px-3 pb-1">
         <ProjectSwitcher
           activeProjectId={projectId}
-          variant="sidebar"
           onCloseDrawer={onNavigate}
         />
       </div>
 
-      {/* Navigation */}
-      <nav className="flex-1 py-2 pl-3 overflow-y-auto">
-        {navGroups.map((entry) => {
-          if (entry.type === "standalone") {
-            const { icon: Icon, ...linkProps } = entry.item;
-            return (
-              <Link
-                key={linkProps.to}
-                {...linkProps}
-                onClick={onNavigate}
-                activeOptions={{ exact: false, includeSearch: false }}
-                className="relative flex items-center gap-3 px-4 py-2 text-sm text-base-content/60 transition-colors hover:bg-base-200 hover:text-base-content"
-                activeProps={{ className: "text-base-content font-medium" }}
-              >
-                {({ isActive }: { isActive: boolean }) => (
-                  <>
-                    {isActive ? (
-                      <div className="absolute left-0 top-1 bottom-1 w-[3px] rounded-r-full bg-primary" />
-                    ) : null}
-                    <Icon className="h-5 w-5" />
-                    {entry.item.label}
-                  </>
-                )}
-              </Link>
-            );
-          }
-
-          return (
-            <div key={entry.label} className="mb-2">
-              <div className="px-4 pb-1 pt-3 text-xs font-semibold uppercase tracking-wider text-base-content/40">
-                {entry.label}
-              </div>
-              {entry.items.map((item) => {
-                const { icon: Icon, ...linkProps } = item;
-                return (
-                  <Link
-                    key={linkProps.to}
-                    {...linkProps}
-                    onClick={onNavigate}
-                    activeOptions={{ exact: false, includeSearch: false }}
-                    className="relative flex items-center gap-3 px-4 py-2 text-sm text-base-content/60 transition-colors hover:bg-base-200 hover:text-base-content"
-                    activeProps={{ className: "text-base-content font-medium" }}
-                  >
-                    {({ isActive }: { isActive: boolean }) => (
-                      <>
-                        {isActive ? (
-                          <div className="absolute left-0 top-1 bottom-1 w-[3px] rounded-r-full bg-primary" />
-                        ) : null}
-                        <Icon className="h-5 w-5" />
-                        {item.label}
-                      </>
-                    )}
-                  </Link>
-                );
-              })}
+      <nav className="min-h-0 flex-1 overflow-y-auto px-2 py-2">
+        {navGroups.map((group) => (
+          <div key={group.label} className="mb-1">
+            <div className="px-3 pb-1 pt-3 text-xs font-semibold uppercase tracking-wider text-base-content/40">
+              {group.label}
             </div>
-          );
-        })}
+            {group.items.map((item) => {
+              const { icon, label, ...linkProps } = item;
+              return (
+                <SidebarNavLink
+                  key={linkProps.to}
+                  icon={icon}
+                  label={label}
+                  onNavigate={onNavigate}
+                  linkProps={linkProps}
+                />
+              );
+            })}
+          </div>
+        ))}
       </nav>
+
+      <SidebarFooter onNavigate={onNavigate} />
+    </div>
+  );
+}
+
+function SidebarFooter({ onNavigate }: { onNavigate?: () => void }) {
+  const { data: session } = useSession();
+  const isHostedMode = isHostedClientAuthMode();
+  const email = session?.user?.email;
+  const { icon: aiIcon, label: aiLabel, ...aiLinkProps } = aiNavItem;
+
+  return (
+    <div className="shrink-0 border-t border-base-300 px-2 py-2 pb-safe">
+      <SidebarNavLink
+        icon={aiIcon}
+        label={aiLabel}
+        onNavigate={onNavigate}
+        linkProps={aiLinkProps}
+      />
+      <SidebarNavLink
+        icon={CircleHelp}
+        label="Help & Community"
+        onNavigate={onNavigate}
+        linkProps={{ to: "/support" }}
+      />
+      {isHostedMode ? (
+        <SidebarNavLink
+          icon={CreditCard}
+          label="Billing"
+          onNavigate={onNavigate}
+          linkProps={{ to: BILLING_ROUTE }}
+        />
+      ) : null}
+      <SidebarNavLink
+        icon={Settings}
+        label="Settings"
+        onNavigate={onNavigate}
+        linkProps={{ to: "/settings" }}
+      />
+
+      {email ? (
+        isHostedMode ? (
+          <div className="dropdown dropdown-top w-full">
+            <button
+              type="button"
+              tabIndex={0}
+              className={`${navItemClass} w-full`}
+              aria-label="Open account menu"
+            >
+              <User className="h-4 w-4 shrink-0" />
+              <span className="truncate" data-ph-mask>
+                {email}
+              </span>
+            </button>
+            <ul
+              tabIndex={0}
+              className="dropdown-content z-30 menu mb-1 w-52 rounded-box border border-base-300 bg-base-100 p-2 shadow-lg"
+            >
+              <li>
+                <button
+                  type="button"
+                  className="text-error"
+                  onClick={() => signOutAndRedirect()}
+                >
+                  <LogOut className="h-4 w-4" />
+                  Sign out
+                </button>
+              </li>
+            </ul>
+          </div>
+        ) : (
+          <div className={navItemBaseClass}>
+            <User className="h-4 w-4 shrink-0" />
+            <span className="truncate" data-ph-mask>
+              {email}
+            </span>
+          </div>
+        )
+      ) : null}
     </div>
   );
 }
diff --git a/src/client/features/access-gate/AccessGate.tsx b/src/client/features/access-gate/AccessGate.tsx
index 4d3c479..3e0ed56 100644
--- a/src/client/features/access-gate/AccessGate.tsx
+++ b/src/client/features/access-gate/AccessGate.tsx
@@ -62,7 +62,7 @@ export function AccessGate({
             {isRefetching ? refetchingLabel : buttonLabel}
           </button>
           <a
-            className="btn btn-outline"
+            className="btn"
             href={externalUrl}
             target="_blank"
             rel="noreferrer"
diff --git a/src/client/features/ai-search/components/BrandLookupCitationsCard.tsx b/src/client/features/ai-search/components/BrandLookupCitationsCard.tsx
index 821fb7a..568985a 100644
--- a/src/client/features/ai-search/components/BrandLookupCitationsCard.tsx
+++ b/src/client/features/ai-search/components/BrandLookupCitationsCard.tsx
@@ -149,7 +149,7 @@ export function CitationTabsCard({
   return (
     <section className="overflow-hidden rounded-xl border border-base-300 bg-base-100">
       <div className="flex items-center justify-between gap-3 border-b border-base-300 px-4 py-3">
-        <div role="tablist" className="tabs tabs-box w-fit">
+        <div role="tablist" className="tabs tabs-border w-fit">
           <button
             type="button"
             role="tab"
diff --git a/src/client/features/ai-search/components/BrandLookupSearchCard.tsx b/src/client/features/ai-search/components/BrandLookupSearchCard.tsx
index f84e3e9..71052ea 100644
--- a/src/client/features/ai-search/components/BrandLookupSearchCard.tsx
+++ b/src/client/features/ai-search/components/BrandLookupSearchCard.tsx
@@ -81,7 +81,7 @@ export function BrandLookupSearchCard({
 
             <button
               type="submit"
-              className="btn btn-primary px-6"
+              className="btn btn-primary shrink-0 px-6"
               disabled={isLoading}
             >
               {isLoading ? "Looking up..." : "Look up"}
diff --git a/src/client/features/ai-search/components/PromptExplorerForm.tsx b/src/client/features/ai-search/components/PromptExplorerForm.tsx
index a4609f0..3631657 100644
--- a/src/client/features/ai-search/components/PromptExplorerForm.tsx
+++ b/src/client/features/ai-search/components/PromptExplorerForm.tsx
@@ -174,7 +174,7 @@ export function PromptExplorerForm({
           </div>
           <button
             type="submit"
-            className="btn btn-primary"
+            className="btn btn-primary shrink-0 px-6"
             disabled={isLoading || form.models.length === 0}
           >
             {isLoading ? "Running…" : "Run"}
diff --git a/src/client/features/audit/results/ResultsView.tsx b/src/client/features/audit/results/ResultsView.tsx
index ca83865..aa68e67 100644
--- a/src/client/features/audit/results/ResultsView.tsx
+++ b/src/client/features/audit/results/ResultsView.tsx
@@ -139,7 +139,7 @@ function ResultsHeader({
   return (
     <div className="flex flex-col lg:flex-row lg:items-center justify-between gap-3">
       {hasPerformanceTab ? (
-        <div role="tablist" className="tabs tabs-box w-fit">
+        <div role="tablist" className="tabs tabs-border w-fit">
           {tabs.map(({ label, tab }) => {
             const isActive = activeTab === tab;
 
diff --git a/src/client/features/auth/AuthPage.tsx b/src/client/features/auth/AuthPage.tsx
index 5d360cb..3b7ba42 100644
--- a/src/client/features/auth/AuthPage.tsx
+++ b/src/client/features/auth/AuthPage.tsx
@@ -53,7 +53,7 @@ export function AuthMethodChooser({
 
       <button
         type="button"
-        className="btn btn-soft w-full"
+        className="btn w-full"
         onClick={onContinueWithEmail}
         disabled={disabled || isBusy}
       >
diff --git a/src/client/features/backlinks/BacklinksPageSections.tsx b/src/client/features/backlinks/BacklinksPageSections.tsx
index e72e8f6..f12e2c2 100644
--- a/src/client/features/backlinks/BacklinksPageSections.tsx
+++ b/src/client/features/backlinks/BacklinksPageSections.tsx
@@ -106,7 +106,7 @@ export function BacklinksResultsCard({
     <div className="border border-base-300 rounded-xl bg-base-100 overflow-hidden">
       <div className="flex flex-col lg:flex-row lg:items-center justify-between gap-3 px-4 py-3 border-b border-base-300">
         <div className="space-y-2">
-          <div role="tablist" className="tabs tabs-box w-fit">
+          <div role="tablist" className="tabs tabs-border w-fit">
             {BACKLINKS_RESULTS_TABS.map(({ label, tab }) => (
               <TabLink
                 key={tab}
@@ -157,7 +157,7 @@ export function BacklinksResultsCard({
           <div
             role="tablist"
             aria-label="Backlinks view"
-            className="ml-auto tabs tabs-box tabs-xs w-fit"
+            className="ml-auto tabs tabs-border tabs-xs w-fit"
           >
             <button
               type="button"
diff --git a/src/client/features/backlinks/BacklinksPageStates.tsx b/src/client/features/backlinks/BacklinksPageStates.tsx
index d241c01..d9dfea9 100644
--- a/src/client/features/backlinks/BacklinksPageStates.tsx
+++ b/src/client/features/backlinks/BacklinksPageStates.tsx
@@ -84,7 +84,7 @@ export function BacklinksErrorState({
           </p>
         </div>
       </div>
-      <button className="btn btn-outline btn-sm" onClick={onRetry}>
+      <button className="btn btn-sm" onClick={onRetry}>
         Retry
       </button>
     </section>
diff --git a/src/client/features/backlinks/BacklinksSearchCard.tsx b/src/client/features/backlinks/BacklinksSearchCard.tsx
index 800d31e..92a6e91 100644
--- a/src/client/features/backlinks/BacklinksSearchCard.tsx
+++ b/src/client/features/backlinks/BacklinksSearchCard.tsx
@@ -108,14 +108,14 @@ export function BacklinksSearchCard({
           }}
         >
           <div className="space-y-3">
-            <div className="grid grid-cols-1 gap-3 lg:grid-cols-12">
+            <div className="flex flex-col gap-3 lg:flex-row">
               <form.Field name="target">
                 {(field) => {
                   const targetError = getFieldError(field.state.meta.errors);
 
                   return (
                     <label
-                      className={`input input-bordered lg:col-span-10 flex items-center gap-2 ${targetError ? "input-error" : ""}`}
+                      className={`input input-bordered flex flex-1 items-center gap-2 ${targetError ? "input-error" : ""}`}
                     >
                       <Search className="size-4 text-base-content/60" />
                       <input
@@ -141,7 +141,7 @@ export function BacklinksSearchCard({
                 {(isSubmitting) => (
                   <button
                     type="submit"
-                    className="btn btn-primary lg:col-span-2"
+                    className="btn btn-primary shrink-0 px-6"
                     disabled={isSubmitting}
                   >
                     {isSubmitting ? "Loading..." : "Search"}
diff --git a/src/client/features/domain/DomainOverviewPage.tsx b/src/client/features/domain/DomainOverviewPage.tsx
index 558e7df..70843d0 100644
--- a/src/client/features/domain/DomainOverviewPage.tsx
+++ b/src/client/features/domain/DomainOverviewPage.tsx
@@ -596,7 +596,7 @@ export function DomainOverviewPage({
 
             <div className="border border-base-300 rounded-xl bg-base-100 overflow-hidden">
               <div className="flex flex-col lg:flex-row lg:items-center justify-between gap-3 px-4 py-3 border-b border-base-300">
-                <div role="tablist" className="tabs tabs-box w-fit">
+                <div role="tablist" className="tabs tabs-border w-fit">
                   <button
                     type="button"
                     role="tab"
diff --git a/src/client/features/domain/components/DomainKeywordsTable.tsx b/src/client/features/domain/components/DomainKeywordsTable.tsx
index 81b1342..cbaeff8 100644
--- a/src/client/features/domain/components/DomainKeywordsTable.tsx
+++ b/src/client/features/domain/components/DomainKeywordsTable.tsx
@@ -176,7 +176,7 @@ function DomainKeywordsTableComponent({
       </div>
       <AppDataTable
         table={table}
-        className="table table-zebra table-sm"
+        className="table table-sm"
         wrapperClassName=""
         empty={
           <div className="py-6 text-center text-base-content/60">
diff --git a/src/client/features/domain/components/DomainPagesTable.tsx b/src/client/features/domain/components/DomainPagesTable.tsx
index f87cbc1..ffea155 100644
--- a/src/client/features/domain/components/DomainPagesTable.tsx
+++ b/src/client/features/domain/components/DomainPagesTable.tsx
@@ -92,7 +92,7 @@ function DomainPagesTableComponent({
   return (
     <AppDataTable
       table={table}
-      className="table table-zebra table-sm"
+      className="table table-sm"
       empty={
         <div className="py-6 text-center text-base-content/60">
           No pages match this search.
diff --git a/src/client/features/gsc/GoogleGlyph.tsx b/src/client/features/gsc/GoogleGlyph.tsx
index 474d971..4e5cb62 100644
--- a/src/client/features/gsc/GoogleGlyph.tsx
+++ b/src/client/features/gsc/GoogleGlyph.tsx
@@ -1,5 +1,14 @@
 /** Google "G" brand mark, shared across the Search Console connect surfaces. */
-export function GoogleGlyph({ className }: { className?: string }) {
+export function GoogleGlyph({
+  className,
+  muted = false,
+}: {
+  className?: string;
+  /** Render in currentColor so the mark inherits muted nav/icon styling. */
+  muted?: boolean;
+}) {
+  const fill = (brand: string) => (muted ? "currentColor" : brand);
+
   return (
     <svg
       className={className}
@@ -8,21 +17,26 @@ export function GoogleGlyph({ className }: { className?: string }) {
       focusable="false"
     >
       <path
-        fill="#EA4335"
+        fill={fill("#EA4335")}
         d="M24 9.5c3.54 0 6.71 1.22 9.21 3.6l6.85-6.85C35.9 2.38 30.47 0 24 0 14.62 0 6.51 5.38 2.56 13.22l7.98 6.19C12.43 13.72 17.74 9.5 24 9.5z"
       />
       <path
-        fill="#4285F4"
+        fill={fill("#4285F4")}
         d="M46.98 24.55c0-1.57-.15-3.09-.38-4.55H24v9.02h12.94c-.58 2.96-2.26 5.48-4.78 7.18l7.73 6c4.51-4.18 7.09-10.36 7.09-17.65z"
       />
       <path
-        fill="#FBBC05"
+        fill={fill("#FBBC05")}
         d="M10.53 28.59c-.48-1.45-.76-2.99-.76-4.59s.27-3.14.76-4.59l-7.98-6.19C.92 16.46 0 20.12 0 24c0 3.88.92 7.54 2.56 10.78l7.97-6.19z"
       />
       <path
-        fill="#34A853"
+        fill={fill("#34A853")}
         d="M24 48c6.48 0 11.93-2.13 15.89-5.81l-7.73-6c-2.15 1.45-4.92 2.3-8.16 2.3-6.26 0-11.57-4.22-13.47-9.91l-7.98 6.19C6.51 42.62 14.62 48 24 48z"
       />
     </svg>
   );
 }
+
+/** Monochrome variant with a LucideIcon-compatible signature for nav slots. */
+export function GoogleGlyphMuted({ className }: { className?: string }) {
+  return <GoogleGlyph muted className={className} />;
+}
diff --git a/src/client/features/gsc/SearchConsoleConnectionCard.tsx b/src/client/features/gsc/SearchConsoleConnectionCard.tsx
index 087373c..91809ef 100644
--- a/src/client/features/gsc/SearchConsoleConnectionCard.tsx
+++ b/src/client/features/gsc/SearchConsoleConnectionCard.tsx
@@ -152,7 +152,7 @@ export function SearchConsoleConnectionCard({
       ) : (
         <div className="space-y-4">
           <p className="text-sm text-base-content/70">
-            Real clicks, impressions, and rankings. No credits used.
+            Connect your Google Search Console to get insights in OpenSEO.
           </p>
           <button
             type="button"
@@ -182,14 +182,9 @@ function IntegrationCard({
   return (
     <div className="overflow-hidden rounded-xl border border-base-300 bg-base-100 shadow-sm">
       <div className="flex items-start justify-between gap-4 p-5 sm:p-6">
-        <div>
-          <h2 className="text-base font-semibold leading-tight">
-            Google Search Console
-          </h2>
-          <p className="mt-0.5 text-sm text-base-content/55">
-            Your search data, straight from Google.
-          </p>
-        </div>
+        <h2 className="text-base font-semibold leading-tight">
+          Google Search Console
+        </h2>
         {status ? <StatusPill status={status} /> : null}
       </div>
       <div className="border-t border-base-300 p-5 sm:p-6">{children}</div>
diff --git a/src/client/features/keywords/page/KeywordResearchSearchBar.tsx b/src/client/features/keywords/page/KeywordResearchSearchBar.tsx
index 6349ac3..973e84e 100644
--- a/src/client/features/keywords/page/KeywordResearchSearchBar.tsx
+++ b/src/client/features/keywords/page/KeywordResearchSearchBar.tsx
@@ -117,7 +117,7 @@ export function KeywordResearchSearchBar({ controller }: Props) {
 
             <button
               type="submit"
-              className="btn btn-primary w-full px-6 font-semibold lg:w-auto lg:shrink-0"
+              className="btn btn-primary w-full px-6 lg:w-auto lg:shrink-0"
             >
               Search
             </button>
diff --git a/src/client/features/onboarding/PostSignupOnboarding.tsx b/src/client/features/onboarding/PostSignupOnboarding.tsx
index a522e70..2dbfed3 100644
--- a/src/client/features/onboarding/PostSignupOnboarding.tsx
+++ b/src/client/features/onboarding/PostSignupOnboarding.tsx
@@ -154,7 +154,7 @@ export function PostSignupOnboarding({
               </button>
               <button
                 type="button"
-                className="btn btn-soft"
+                className="btn btn-primary"
                 disabled={!canContinue || isSaving}
                 onClick={onNext}
               >
@@ -216,7 +216,7 @@ function McpRecommendation({
 
       <button
         type="button"
-        className="btn btn-neutral mt-5 w-full"
+        className="btn btn-primary mt-5 w-full"
         disabled={isSaving}
         onClick={onSetup}
       >
diff --git a/src/client/features/projects/ProjectSwitcher.tsx b/src/client/features/projects/ProjectSwitcher.tsx
index 29af615..5412f5e 100644
--- a/src/client/features/projects/ProjectSwitcher.tsx
+++ b/src/client/features/projects/ProjectSwitcher.tsx
@@ -13,11 +13,9 @@ function closeDropdown() {
 
 export function ProjectSwitcher({
   activeProjectId,
-  variant = "topbar",
   onCloseDrawer,
 }: {
   activeProjectId: string | null;
-  variant?: "topbar" | "sidebar";
   // Mobile sidebar passes this so switching / navigating away also closes the
   // drawer overlay.
   onCloseDrawer?: () => void;
@@ -31,8 +29,6 @@ export function ProjectSwitcher({
   const activeProject =
     projects.find((project) => project.id === activeProjectId) ?? null;
 
-  const isSidebar = variant === "sidebar";
-
   const handleSelect = (project: ProjectSummary) => {
     closeDropdown();
     onCloseDrawer?.();
@@ -45,16 +41,12 @@ export function ProjectSwitcher({
   };
 
   return (
-    <div className={`dropdown ${isSidebar ? "w-full" : "dropdown-end"}`}>
+    <div className="dropdown w-full">
       <button
         type="button"
         tabIndex={0}
         aria-label="Switch project"
-        className={
-          isSidebar
-            ? "btn btn-ghost btn-sm w-full justify-between font-medium"
-            : "flex h-10 max-w-[12rem] items-center gap-2 rounded-full px-3 text-left transition-colors hover:bg-base-200/80"
-        }
+        className="flex w-full items-center justify-between gap-2 rounded-lg border border-base-300 bg-base-100 px-3 py-1.5 text-left transition-colors hover:border-base-content/25"
       >
         <span className="flex min-w-0 flex-col">
           <span className="truncate text-sm font-medium text-base-content">
@@ -71,9 +63,7 @@ export function ProjectSwitcher({
 
       <ul
         tabIndex={0}
-        className={`dropdown-content z-30 menu rounded-box border border-base-300 bg-base-100 p-2 shadow-lg ${
-          isSidebar ? "w-full" : "mt-2 w-64"
-        }`}
+        className="dropdown-content z-30 menu w-full rounded-box border border-base-300 bg-base-100 p-2 shadow-lg"
       >
         {projects.map((project) => {
           const isActive = project.id === activeProjectId;
@@ -101,9 +91,10 @@ export function ProjectSwitcher({
         })}
 
         {projects.length > 0 ? (
-          <li>
-            <hr className="my-1 border-base-300" />
-          </li>
+          <li
+            aria-hidden="true"
+            className="pointer-events-none my-1 h-px bg-base-300 p-0"
+          />
         ) : null}
 
         <li>
diff --git a/src/client/features/rank-tracking/RankTrackingDetailHeader.tsx b/src/client/features/rank-tracking/RankTrackingDetailHeader.tsx
index 4fea69f..7ace3d4 100644
--- a/src/client/features/rank-tracking/RankTrackingDetailHeader.tsx
+++ b/src/client/features/rank-tracking/RankTrackingDetailHeader.tsx
@@ -93,7 +93,7 @@ export function RankTrackingDetailHeader({
           <option value="90d">vs 90 days ago</option>
         </select>
         <div className="hidden sm:block h-6 w-px bg-base-300" />
-        <button className="btn btn-outline btn-sm gap-1" onClick={onEdit}>
+        <button className="btn btn-sm gap-1" onClick={onEdit}>
           <Settings className="size-3.5" />
           Configure
         </button>
diff --git a/src/client/features/saved-keywords/SavedKeywordsTable.tsx b/src/client/features/saved-keywords/SavedKeywordsTable.tsx
index 37da16a..bfe4fcb 100644
--- a/src/client/features/saved-keywords/SavedKeywordsTable.tsx
+++ b/src/client/features/saved-keywords/SavedKeywordsTable.tsx
@@ -131,7 +131,7 @@ export function SavedKeywordsTable({
   return (
     <AppDataTable
       table={table}
-      className="table table-zebra table-sm"
+      className="table table-sm"
       isLoading={isLoading}
       loading={<SavedKeywordsSkeleton />}
       empty={<SavedKeywordsEmptyState hasActiveFilters={hasActiveFilters} />}
diff --git a/src/client/features/search-performance/SearchPerformancePage.tsx b/src/client/features/search-performance/SearchPerformancePage.tsx
index e80f668..0535fac 100644
--- a/src/client/features/search-performance/SearchPerformancePage.tsx
+++ b/src/client/features/search-performance/SearchPerformancePage.tsx
@@ -209,12 +209,7 @@ export function SearchPerformancePage({ projectId }: { projectId: string }) {
             </span>
           </div>
         ) : !report?.connected ? (
-          <div className="max-w-2xl space-y-4">
-            <p className="text-sm text-base-content/70">
-              Find your striking-distance keywords — queries ranking just off
-              the top of page one, where a small improvement can win the most
-              new clicks. Connect Search Console to see them.
-            </p>
+          <div className="max-w-2xl">
             <SearchConsoleConnectionCard projectId={projectId} />
           </div>
         ) : (
@@ -222,7 +217,7 @@ export function SearchPerformancePage({ projectId }: { projectId: string }) {
             <TotalsCards report={report} />
             <div className="overflow-hidden rounded-xl border border-base-300 bg-base-100">
               <div className="flex flex-col gap-3 border-b border-base-300 px-4 py-3 lg:flex-row lg:items-center lg:justify-between">
-                <div role="tablist" className="tabs tabs-box w-fit">
+                <div role="tablist" className="tabs tabs-border w-fit">
                   <TabButton
                     active={tab === "striking"}
                     onClick={() => setTab("striking")}
diff --git a/src/client/layout/AppShell.tsx b/src/client/layout/AppShell.tsx
index d9cafa6..a6e1736 100644
--- a/src/client/layout/AppShell.tsx
+++ b/src/client/layout/AppShell.tsx
@@ -1,31 +1,20 @@
 import * as React from "react";
 import { Link, useLocation } from "@tanstack/react-router";
 import { useQuery } from "@tanstack/react-query";
+import { Menu } from "lucide-react";
 import {
-  ChevronDown,
-  CircleHelp,
-  CreditCard,
-  Menu,
-  Settings,
-  User,
-} from "lucide-react";
-import {
-  AppContent,
   MissingSeoSetupModal,
+  MobileSidebarDrawer,
   SeoApiStatusBanners,
 } from "@/client/layout/AppShellParts";
 import { GscReEngagementModal } from "@/client/features/gsc/GscReEngagementModal";
-import { getProjectNavGroups } from "@/client/navigation/items";
-import { signOutAndRedirect, useSession } from "@/lib/auth-client";
-import { isHostedClientAuthMode } from "@/lib/auth-mode";
+import { Sidebar } from "@/client/components/Sidebar";
 import { BILLING_ROUTE } from "@/shared/billing";
 import { getSeoApiKeyStatus } from "@/serverFunctions/config";
 import { getProjects } from "@/serverFunctions/projects";
-import { ProjectSwitcher } from "@/client/features/projects/ProjectSwitcher";
 import { getLastProjectId } from "@/client/lib/active-project";
 
 const DATAFORSEO_HELP_PATH = "/help/dataforseo-api-key";
-const SUPPORT_PATH = "/support";
 
 export function AuthenticatedAppLayout({
   children,
@@ -61,7 +50,7 @@ export function AuthenticatedAppLayout({
       ?.id ??
     fallbackProjects[0]?.id ??
     null;
-  const headerProjectId = projectId ?? fallbackProjectId;
+  const sidebarProjectId = projectId ?? fallbackProjectId;
   const shouldCheckSeoApiKeyStatus = location.pathname !== BILLING_ROUTE;
   const seoApiKeyStatusQuery = useQuery({
     queryKey: ["seoApiKeyStatus"],
@@ -120,36 +109,40 @@ export function AuthenticatedAppLayout({
     };
   }, [shouldShowMissingSeoApiKeyModal]);
 
-  React.useEffect(() => {
-    if (!projectId) {
-      setDrawerOpen(false);
-    }
-  }, [projectId]);
-
   return (
-    <div className="flex h-[100dvh] flex-col bg-base-200">
-      <TopNav
-        drawerOpen={drawerOpen}
-        projectId={headerProjectId}
-        pathname={location.pathname}
-        onOpenDrawer={() => setDrawerOpen(true)}
+    <div className="flex h-[100dvh] bg-base-200">
+      <div className="hidden shrink-0 md:block">
+        <Sidebar projectId={sidebarProjectId} />
+      </div>
+
+      <div className="flex min-w-0 flex-1 flex-col">
+        <MobileTopBar
+          drawerOpen={drawerOpen}
+          onOpenDrawer={() => setDrawerOpen(true)}
+        />
+
+        {/* PostHog-style cutout: the main content sits on a raised panel with a
+            thin strip of the sidebar background above it and a hairline border. */}
+        <div className="flex min-h-0 flex-1 flex-col md:pt-2">
+          <div className="flex min-h-0 flex-1 flex-col overflow-hidden bg-base-100 md:rounded-tl-lg md:border-l md:border-t md:border-base-300">
+            <SeoApiStatusBanners
+              shouldShowSeoApiWarning={shouldShowSeoApiWarning}
+              seoApiKeyStatusError={seoApiKeyStatusError}
+            />
+
+            {banner}
+
+            <div className="min-h-0 flex-1 overflow-auto">{children}</div>
+          </div>
+        </div>
+      </div>
+
+      <MobileSidebarDrawer
+        open={drawerOpen}
+        projectId={sidebarProjectId}
+        onClose={() => setDrawerOpen(false)}
       />
 
-      <SeoApiStatusBanners
-        shouldShowSeoApiWarning={shouldShowSeoApiWarning}
-        seoApiKeyStatusError={seoApiKeyStatusError}
-      />
-
-      {banner}
-
-      <AppContent
-        drawerOpen={drawerOpen}
-        projectId={headerProjectId}
-        onCloseDrawer={() => setDrawerOpen(false)}
-      >
-        {children}
-      </AppContent>
-
       <MissingSeoSetupModal
         ref={setupModalRef}
         isOpen={shouldShowMissingSeoApiKeyModal}
@@ -157,231 +150,34 @@ export function AuthenticatedAppLayout({
       />
 
       <GscReEngagementModal
-        projectId={headerProjectId}
+        projectId={sidebarProjectId}
         suppressed={shouldShowMissingSeoApiKeyModal}
       />
     </div>
   );
 }
 
-function TopNav({
+function MobileTopBar({
   drawerOpen,
-  projectId,
-  pathname,
   onOpenDrawer,
 }: {
   drawerOpen: boolean;
-  projectId: string | null;
-  pathname: string;
   onOpenDrawer: () => void;
 }) {
-  const navGroups = projectId ? getProjectNavGroups(projectId) : [];
-  const isSupportActive = pathname === SUPPORT_PATH;
-
   return (
-    <div className="navbar shrink-0 gap-2 border-b border-base-300 bg-base-100">
-      <div className="flex flex-none items-center md:hidden">
-        {projectId ? (
-          <button
-            type="button"
-            className="btn btn-square btn-ghost"
-            aria-label="Toggle sidebar"
-            aria-expanded={drawerOpen}
-            onClick={onOpenDrawer}
-          >
-            <Menu className="h-6 w-6" />
-          </button>
-        ) : null}
-        <Link to="/" className="ml-1 font-semibold text-base-content">
-          OpenSEO
-        </Link>
-      </div>
-
-      <div className="hidden items-center gap-1 md:flex">
-        <Link to="/" className="px-2 text-lg font-semibold text-base-content">
-          OpenSEO
-        </Link>
-        {projectId
-          ? navGroups.map((entry) => {
-              if (entry.type === "standalone") {
-                const { icon: Icon, matchSegment, ...linkProps } = entry.item;
-                const isActive = pathname.includes(matchSegment);
-                return (
-                  <Link
-                    key={linkProps.to}
-                    {...linkProps}
-                    className={`btn btn-sm gap-2 ${
-                      isActive
-                        ? "border-transparent bg-primary/10 font-medium text-primary"
-                        : "btn-ghost text-base-content/60 hover:text-base-content"
-                    }`}
-                  >
-                    <Icon className="h-4 w-4" />
-                    {entry.item.label}
-                  </Link>
-                );
-              }
-
-              const GroupIcon = entry.icon;
-              const isGroupActive = entry.matchSegments.some((seg) =>
-                pathname.includes(seg),
-              );
-
-              return (
-                <div key={entry.label} className="dropdown dropdown-hover">
-                  <button
-                    type="button"
-                    tabIndex={0}
-                    className={`btn btn-sm gap-1.5 ${
-                      isGroupActive
-                        ? "border-transparent bg-primary/10 font-medium text-primary"
-                        : "btn-ghost text-base-content/60 hover:text-base-content"
-                    }`}
-                  >
-                    <GroupIcon className="h-4 w-4" />
-                    {entry.label}
-                    <ChevronDown className="h-3 w-3 opacity-50" />
-                  </button>
-                  <ul
-                    tabIndex={0}
-                    className="dropdown-content z-20 menu w-52 rounded-box border border-base-300 bg-base-100 p-2 shadow-lg"
-                  >
-                    {entry.items.map((item) => {
-                      const { icon: Icon, matchSegment, ...linkProps } = item;
-                      const isActive = pathname.includes(matchSegment);
-                      return (
-                        <li key={linkProps.to}>
-                          <Link
-                            {...linkProps}
-                            className={
-                              isActive
-                                ? "bg-primary/10 font-medium text-primary"
-                                : ""
-                            }
-                            onClick={() => {
-                              if (
-                                document.activeElement instanceof HTMLElement
-                              ) {
-                                document.activeElement.blur();
-                              }
-                            }}
-                          >
-                            <Icon className="h-4 w-4" />
-                            {item.label}
-                          </Link>
-                        </li>
-                      );
-                    })}
-                  </ul>
-                </div>
-              );
-            })
-          : null}
-      </div>
-
-      <div className="flex-1" />
-
-      <div className="hidden flex-none items-center gap-2 md:flex">
-        <div className="tooltip tooltip-bottom" data-tip="Help & Community">
-          <Link
-            to={SUPPORT_PATH}
-            className={`btn btn-ghost btn-circle btn-sm ${
-              isSupportActive
-                ? "bg-primary/10 text-primary"
-                : "text-base-content/60 hover:text-base-content"
-            }`}
-          >
-            <CircleHelp className="h-4 w-4" />
-          </Link>
-        </div>
-
-        <div className="flex items-center rounded-full border border-base-300 bg-base-100/70 px-1 py-1 shadow-sm">
-          <ProjectSwitcher activeProjectId={projectId} variant="topbar" />
-
-          <AccountMenu />
-        </div>
-      </div>
-
-      <AccountMenu mobileOnly />
+    <div className="flex shrink-0 items-center gap-1 border-b border-base-300 bg-base-100 px-2 py-1.5 md:hidden">
+      <button
+        type="button"
+        className="btn btn-square btn-ghost btn-sm"
+        aria-label="Toggle sidebar"
+        aria-expanded={drawerOpen}
+        onClick={onOpenDrawer}
+      >
+        <Menu className="h-5 w-5" />
+      </button>
+      <Link to="/" className="ml-1 font-semibold text-base-content">
+        OpenSEO
+      </Link>
     </div>
   );
 }
-
-function AccountMenu({ mobileOnly = false }: { mobileOnly?: boolean }) {
-  const { data: session } = useSession();
-  const isHostedMode = isHostedClientAuthMode();
-  const email = session?.user?.email;
-
-  const handleSignOut = () => signOutAndRedirect();
-
-  const menu = (
-    <div className={mobileOnly ? "ml-2 flex-none md:hidden" : "flex-none"}>
-      <div className="dropdown dropdown-end">
-        <button
-          type="button"
-          tabIndex={0}
-          className={`btn btn-ghost btn-circle ${mobileOnly ? "" : "hover:bg-base-200/80"}`}
-          aria-label="Open account menu"
-        >
-          <User className="h-5 w-5" />
-        </button>
-        <ul
-          tabIndex={0}
-          className="dropdown-content z-20 menu mt-3 min-w-56 rounded-box border border-base-300 bg-base-100 p-2 shadow-lg"
-        >
-          {email ? (
-            <li className="menu-title max-w-full">
-              <span className="truncate text-base-content" data-ph-mask>
-                {email}
-              </span>
-            </li>
-          ) : null}
-          {mobileOnly ? (
-            <li>
-              <Link to={SUPPORT_PATH} className="flex items-center gap-2">
-                <CircleHelp className="h-4 w-4" />
-                Help & Community
-              </Link>
-            </li>
-          ) : null}
-          {isHostedMode ? (
-            <li>
-              <Link to={BILLING_ROUTE} className="flex items-center gap-2">
-                <CreditCard className="h-4 w-4" />
-                Billing
-              </Link>
-            </li>
-          ) : null}
-          <li>
-            <Link to="/settings" className="flex items-center gap-2">
-              <Settings className="h-4 w-4" />
-              Settings
-            </Link>
-          </li>
-          {isHostedMode && email ? (
-            <li>
-              <button
-                type="button"
-                className="text-error"
-                onClick={handleSignOut}
-              >
-                Sign out
-              </button>
-            </li>
-          ) : null}
-        </ul>
-      </div>
-    </div>
-  );
-
-  if (mobileOnly) {
-    return menu;
-  }
-
-  return (
-    <>
-      <div className="mx-1 h-6 w-px bg-base-300" />
-      {menu}
-    </>
-  );
-}
diff --git a/src/client/layout/AppShellParts.tsx b/src/client/layout/AppShellParts.tsx
index 4605e1a..c451762 100644
--- a/src/client/layout/AppShellParts.tsx
+++ b/src/client/layout/AppShellParts.tsx
@@ -58,45 +58,29 @@ function SeoApiStatusBanners({
   );
 }
 
-function AppContent({
-  drawerOpen,
+function MobileSidebarDrawer({
+  open,
   projectId,
-  onCloseDrawer,
-  children,
+  onClose,
 }: {
-  drawerOpen: boolean;
+  open: boolean;
   projectId: string | null;
-  onCloseDrawer: () => void;
-  children: React.ReactNode;
+  onClose: () => void;
 }) {
+  if (!open) return null;
+
   return (
-    <>
-      <div className="flex-1 min-h-0 md:hidden">
-        <div className="h-full overflow-auto">{children}</div>
-
-        {drawerOpen && projectId ? (
-          <div className="fixed inset-0 z-50">
-            <button
-              type="button"
-              aria-label="Close sidebar"
-              className="absolute inset-0 bg-black/45"
-              onClick={onCloseDrawer}
-            />
-            <div className="absolute left-0 top-0 h-full">
-              <Sidebar
-                projectId={projectId}
-                onNavigate={onCloseDrawer}
-                onClose={onCloseDrawer}
-              />
-            </div>
-          </div>
-        ) : null}
+    <div className="fixed inset-0 z-50 md:hidden">
+      <button
+        type="button"
+        aria-label="Close sidebar"
+        className="absolute inset-0 bg-black/45"
+        onClick={onClose}
+      />
+      <div className="absolute left-0 top-0 h-full shadow-xl">
+        <Sidebar projectId={projectId} onNavigate={onClose} onClose={onClose} />
       </div>
-
-      <div className="hidden md:block flex-1 min-h-0 overflow-auto">
-        {children}
-      </div>
-    </>
+    </div>
   );
 }
 
@@ -160,4 +144,4 @@ const MissingSeoSetupModal = React.forwardRef<
 
 MissingSeoSetupModal.displayName = "MissingSeoSetupModal";
 
-export { AppContent, MissingSeoSetupModal, SeoApiStatusBanners };
+export { MissingSeoSetupModal, MobileSidebarDrawer, SeoApiStatusBanners };
diff --git a/src/client/navigation/items.ts b/src/client/navigation/items.ts
index 139af7f..b2ef682 100644
--- a/src/client/navigation/items.ts
+++ b/src/client/navigation/items.ts
@@ -1,5 +1,4 @@
 import {
-  BarChart3,
   Bookmark,
   Bot,
   ClipboardCheck,
@@ -11,69 +10,60 @@ import {
   TrendingUp,
 } from "lucide-react";
 import { linkOptions } from "@tanstack/react-router";
+import { GoogleGlyphMuted } from "@/client/features/gsc/GoogleGlyph";
 
 const projectNavItems = [
   {
     to: "/p/$projectId/keywords" as const,
     label: "Keyword Research",
     icon: Search,
-    matchSegment: "/keywords",
   },
   {
     to: "/p/$projectId/saved" as const,
     label: "Saved Keywords",
     icon: Bookmark,
-    matchSegment: "/saved",
   },
   {
     to: "/p/$projectId/rank-tracking" as const,
     label: "Rank Tracking",
     icon: TrendingUp,
-    matchSegment: "/rank-tracking",
   },
   {
     to: "/p/$projectId/search-performance" as const,
-    label: "Search Performance",
-    icon: BarChart3,
-    matchSegment: "/search-performance",
+    label: "GSC Insights",
+    icon: GoogleGlyphMuted,
   },
   {
     to: "/p/$projectId/domain" as const,
     label: "Domain Overview",
     icon: Globe,
-    matchSegment: "/domain",
   },
   {
     to: "/p/$projectId/backlinks" as const,
     label: "Backlinks",
     icon: Link2,
-    matchSegment: "/backlinks",
   },
   {
     to: "/p/$projectId/audit" as const,
     label: "Site Audit",
     icon: ClipboardCheck,
-    matchSegment: "/audit",
   },
   {
     to: "/p/$projectId/brand-lookup" as const,
     label: "Brand Lookup",
     icon: Sparkles,
-    matchSegment: "/brand-lookup",
   },
   {
     to: "/p/$projectId/prompt-explorer" as const,
     label: "Prompt Explorer",
     icon: MessageSquare,
-    matchSegment: "/prompt-explorer",
   },
 ] as const;
 
-const aiNavItem = linkOptions({
+export const aiNavItem = linkOptions({
   to: "/ai" as const,
   label: "AI & MCP",
   icon: Bot,
-  matchSegment: "/ai",
 });
 
 function getProjectNavItems(projectId: string) {
@@ -86,48 +76,33 @@ function getProjectNavItems(projectId: string) {
   );
 }
 
+// Grouped by scope: "My Site" is the project's own domain (tracked data),
+// "Research" is point-at-anything lookup tools.
 export function getProjectNavGroups(projectId: string) {
   const all = getProjectNavItems(projectId);
-  const bySegment = (seg: string) => all.find((i) => i.matchSegment === seg)!;
+  const byPath = (path: (typeof projectNavItems)[number]["to"]) =>
+    all.find((i) => i.to === path)!;
 
   return [
     {
-      type: "group" as const,
-      label: "Keywords",
-      icon: Search,
-      matchSegments: ["/keywords", "/saved", "/rank-tracking"],
+      label: "Research",
       items: [
-        bySegment("/keywords"),
-        bySegment("/saved"),
-        bySegment("/rank-tracking"),
+        byPath("/p/$projectId/keywords"),
+        byPath("/p/$projectId/domain"),
+        byPath("/p/$projectId/backlinks"),
+        byPath("/p/$projectId/brand-lookup"),
+        byPath("/p/$projectId/prompt-explorer"),
       ],
     },
     {
-      type: "standalone" as const,
-      item: bySegment("/search-performance"),
-    },
-    {
-      type: "group" as const,
-      label: "Domain",
-      icon: Globe,
-      matchSegments: ["/domain", "/backlinks", "/audit"],
+      label: "My Site",
       items: [
-        bySegment("/domain"),
-        bySegment("/backlinks"),
-        bySegment("/audit"),
+        byPath("/p/$projectId/search-performance"),
+        byPath("/p/$projectId/rank-tracking"),
+        byPath("/p/$projectId/saved"),
+        byPath("/p/$projectId/audit"),
       ],
     },
-    {
-      type: "group" as const,
-      label: "AI Visibility",
-      icon: Sparkles,
-      matchSegments: ["/brand-lookup", "/prompt-explorer"],
-      items: [bySegment("/brand-lookup"), bySegment("/prompt-explorer")],
-    },
-    {
-      type: "standalone" as const,
-      item: aiNavItem,
-    },
   ];
 }
 
diff --git a/src/client/styles/app.css b/src/client/styles/app.css
index 98e65f4..f8564f1 100644
--- a/src/client/styles/app.css
+++ b/src/client/styles/app.css
@@ -29,11 +29,11 @@
   --color-base-200: oklch(97% 0 0);
   --color-base-300: oklch(92% 0 0);
   --color-base-content: oklch(20% 0 0);
-  --color-primary: oklch(55% 0.18 260);
+  --color-primary: oklch(50% 0.12 262);
   --color-primary-content: oklch(100% 0 0);
   --color-secondary: oklch(55% 0.15 145);
   --color-secondary-content: oklch(100% 0 0);
-  --color-accent: oklch(55% 0.18 260);
+  --color-accent: oklch(50% 0.12 262);
   --color-accent-content: oklch(100% 0 0);
   --color-neutral: oklch(25% 0 0);
   --color-neutral-content: oklch(100% 0 0);
@@ -61,14 +61,14 @@
   prefersdark: true;
   color-scheme: dark;
   --color-base-100: oklch(18% 0 0);
-  --color-base-200: oklch(14% 0 0);
-  --color-base-300: oklch(22% 0 0);
+  --color-base-200: oklch(12% 0 0);
+  --color-base-300: oklch(27% 0 0);
   --color-base-content: oklch(92% 0 0);
-  --color-primary: oklch(60% 0.18 260);
+  --color-primary: oklch(66% 0.12 262);
   --color-primary-content: oklch(100% 0 0);
   --color-secondary: oklch(60% 0.15 145);
   --color-secondary-content: oklch(100% 0 0);
-  --color-accent: oklch(60% 0.18 260);
+  --color-accent: oklch(66% 0.12 262);
   --color-accent-content: oklch(100% 0 0);
   --color-neutral: oklch(85% 0 0);
   --color-neutral-content: oklch(20% 0 0);
@@ -148,6 +148,45 @@ select {
   }
 }
 
+/* Dark mode: neutral interactive surfaces should lift above the panel, not
+   sink below it. DaisyUI derives default buttons and the tabs-box well from
+   base-200, which is darker than the base-100 content panel in dark mode,
+   so they read as sunken/disabled. Colored variants (primary, error, ...)
+   set their own --btn-color and are excluded. */
+html[data-theme="openseo-dark"]
+  .btn:not(
+    .btn-primary,
+    .btn-error,
+    .btn-neutral,
+    .btn-ghost,
+    .btn-outline,
+    .btn-soft
+  ) {
+  --btn-color: oklch(25% 0 0);
+}
+
+/* Light mode: the base-200 default button is nearly invisible on the
+   base-100 content panel; use a white surface with a visible border,
+   matching inputs/selects. */
+html[data-theme="openseo"]
+  .btn:not(
+    .btn-primary,
+    .btn-error,
+    .btn-neutral,
+    .btn-ghost,
+    .btn-outline,
+    .btn-soft
+  ) {
+  --btn-color: var(--color-base-100);
+  --btn-border: var(--color-base-300);
+}
+
+/* Underline tabs: DaisyUI's tabs-border underlines the active tab with
+   currentColor; use the primary accent instead (PostHog-style). */
+.tabs-border > .tab.tab-active::before {
+  --tab-border-color: var(--color-primary);
+}
+
 /* Custom alert styling with darker borders and transparent background */
 .alert {
   @apply flex gap-3 rounded-lg border p-4 text-base-content/70;