diff --git a/frontend/src/App.tsx b/frontend/src/App.tsx
index 96c43d2..dcc18e8 100644
--- a/frontend/src/App.tsx
+++ b/frontend/src/App.tsx
@@ -28,10 +28,10 @@ function ProtectedShell({ children, slug }: { children: React.ReactNode; slug: s
   return (
     <AuthGate>
       <RoleGate slug={slug}>
-        <div className="flex min-h-screen flex-col">
+        <div className="flex min-h-screen flex-col bg-slate-950 text-slate-100">
           <Navbar />
           <StatsBar />
-          <main className="mx-auto w-full max-w-7xl flex-1 p-4 md:p-6">
+          <main className="mx-auto w-full max-w-7xl flex-1 px-4 py-4 md:px-6 md:py-6">
             <Suspense fallback={<Loading label="Loading view…" />}>{children}</Suspense>
           </main>
           <ChatToggle />
diff --git a/frontend/src/components/ChatToggle.tsx b/frontend/src/components/ChatToggle.tsx
index 2f7b241..021bcd1 100644
--- a/frontend/src/components/ChatToggle.tsx
+++ b/frontend/src/components/ChatToggle.tsx
@@ -19,8 +19,8 @@ export default function ChatToggle() {
       <button
         type="button"
         onClick={() => setOpen((v) => !v)}
-        className={`fixed bottom-4 right-4 z-50 flex h-12 w-12 items-center justify-center rounded-full shadow-2xl transition-colors ${
-          open ? 'bg-slate-700 hover:bg-slate-600' : 'bg-blue-600 hover:bg-blue-500'
+        className={`fixed bottom-6 right-6 z-50 flex h-12 w-12 items-center justify-center rounded-full shadow-2xl transition-colors ${
+          open ? 'bg-slate-700 hover:bg-slate-600' : 'bg-indigo-600 hover:bg-indigo-500'
         }`}
         aria-label={open ? 'Close AI chat' : 'Open AI chat'}
         title={open ? 'Close AI chat' : 'Open AI chat'}
diff --git a/frontend/src/components/ChatView.tsx b/frontend/src/components/ChatView.tsx
index 418267b..bf39f75 100644
--- a/frontend/src/components/ChatView.tsx
+++ b/frontend/src/components/ChatView.tsx
@@ -84,15 +84,15 @@ export default function ChatView({ onClose }: Props) {
   const hasData = (timelog.rows ?? 0) > 0;
 
   return (
-    <div className="fixed bottom-20 right-4 z-50 flex h-[70vh] w-[420px] max-w-[92vw] flex-col rounded-xl bg-white shadow-2xl ring-1 ring-slate-300">
-      <div className="flex items-center gap-2 border-b border-slate-200 px-3 py-2">
-        <span className={`h-2 w-2 rounded-full ${hasData ? 'bg-emerald-500' : 'bg-amber-400'}`} />
-        <span className="text-sm font-semibold text-slate-800">AI Assistant</span>
+    <div className="fixed bottom-24 right-6 z-50 flex h-[70vh] w-[420px] max-w-[92vw] flex-col rounded-xl bg-slate-900 shadow-2xl border border-slate-700">
+      <div className="flex items-center gap-2 border-b border-slate-700 px-3 py-2">
+        <span className={`h-2 w-2 rounded-full ${hasData ? 'bg-emerald-400' : 'bg-amber-400'}`} />
+        <span className="text-sm font-semibold text-slate-100">AI Assistant</span>
         {messages.length > 0 && (
           <button
             type="button"
             onClick={() => setMessages([])}
-            className="ml-auto rounded border border-slate-300 px-2 py-0.5 text-[10px] text-slate-500 hover:bg-slate-50"
+            className="ml-auto rounded border border-slate-600 bg-slate-800 px-2 py-0.5 text-[10px] text-slate-300 hover:bg-slate-700"
           >
             Clear
           </button>
@@ -100,7 +100,7 @@ export default function ChatView({ onClose }: Props) {
         <button
           type="button"
           onClick={onClose}
-          className="ml-2 rounded p-1 text-slate-500 hover:bg-slate-100"
+          className="ml-2 rounded p-1 text-slate-400 hover:bg-slate-800 hover:text-slate-200"
           aria-label="Close AI chat"
         >
           <X className="h-4 w-4" aria-hidden />
@@ -110,7 +110,7 @@ export default function ChatView({ onClose }: Props) {
       <div className="flex-1 space-y-3 overflow-y-auto px-3 py-3">
         {messages.length === 0 && (
           <div className="space-y-2">
-            <p className="text-xs text-slate-500">Try asking:</p>
+            <p className="text-xs text-slate-400">Try asking:</p>
             <div className="flex flex-col gap-1.5">
               {SUGGESTIONS.map((s) => (
                 <button
@@ -118,28 +118,28 @@ export default function ChatView({ onClose }: Props) {
                   type="button"
                   onClick={() => void send(s)}
                   disabled={!hasData || busy}
-                  className="rounded-lg border border-slate-200 bg-slate-50 px-3 py-2 text-left text-xs text-slate-700 hover:bg-slate-100 disabled:opacity-40"
+                  className="rounded-lg border border-slate-700 bg-slate-800 px-3 py-2 text-left text-xs text-slate-300 hover:bg-slate-700 disabled:opacity-40"
                 >
                   {s}
                 </button>
               ))}
             </div>
-            {!hasData && <p className="text-[10px] text-slate-400">Upload a time log first to give the AI real context.</p>}
+            {!hasData && <p className="text-[10px] text-slate-500">Upload a time log first to give the AI real context.</p>}
           </div>
         )}
 
         {messages.map((m, i) => (
           <div key={i} className={`flex gap-2 ${m.role === 'user' ? 'justify-end' : 'justify-start'}`}>
             {m.role === 'assistant' && (
-              <div className="mt-0.5 flex h-6 w-6 flex-none items-center justify-center rounded-full bg-blue-600 text-[9px] font-bold text-white">
+              <div className="mt-0.5 flex h-6 w-6 flex-none items-center justify-center rounded-full bg-indigo-600 text-[9px] font-bold text-white">
                 AI
               </div>
             )}
             <div
               className={`max-w-[85%] whitespace-pre-wrap rounded-2xl px-3 py-2 text-xs leading-relaxed ${
                 m.role === 'user'
-                  ? 'rounded-br-sm bg-blue-600 text-white'
-                  : 'rounded-bl-sm bg-slate-100 text-slate-800'
+                  ? 'rounded-br-sm bg-indigo-600 text-white'
+                  : 'rounded-bl-sm bg-slate-800 text-slate-200'
               }`}
             >
               {m.content || (busy && i === messages.length - 1 ? '…' : '')}
@@ -148,12 +148,12 @@ export default function ChatView({ onClose }: Props) {
         ))}
 
         {error && (
-          <div className="rounded-md border border-red-200 bg-red-50 px-3 py-2 text-xs text-red-700">{error}</div>
+          <div className="rounded-md border border-red-500/50 bg-red-900/30 px-3 py-2 text-xs text-red-300">{error}</div>
         )}
         <div ref={bottomRef} />
       </div>
 
-      <div className="border-t border-slate-200 px-3 py-2">
+      <div className="border-t border-slate-700 px-3 py-2">
         <div className="flex items-end gap-2">
           <textarea
             ref={inputRef}
diff --git a/frontend/src/components/ErrorBoundary.tsx b/frontend/src/components/ErrorBoundary.tsx
index 68851e6..70c7650 100644
--- a/frontend/src/components/ErrorBoundary.tsx
+++ b/frontend/src/components/ErrorBoundary.tsx
@@ -26,15 +26,15 @@ export default class ErrorBoundary extends Component<Props, State> {
   render() {
     if (!this.state.error) return this.props.children;
     return (
-      <div className="card border-red-300 bg-red-50 text-red-800">
+      <div className="rounded-lg border border-red-500/50 bg-red-900/30 p-4 shadow-md text-red-200">
         <div className="flex items-start gap-3">
           <AlertTriangle className="mt-0.5 h-5 w-5 flex-none" aria-hidden />
           <div className="flex-1">
-            <div className="font-semibold">
+            <div className="font-semibold text-red-100">
               {this.props.label ? `${this.props.label} failed to render` : 'Something went wrong'}
             </div>
-            <div className="mt-1 text-sm">{this.state.error.message}</div>
-            <button onClick={this.reset} className="mt-2 text-sm underline">Try again</button>
+            <div className="mt-1 text-sm text-red-300">{this.state.error.message}</div>
+            <button onClick={this.reset} className="mt-2 text-sm text-red-200 hover:text-white underline">Try again</button>
           </div>
         </div>
       </div>
diff --git a/frontend/src/components/ErrorBox.tsx b/frontend/src/components/ErrorBox.tsx
index 0324ee6..46a9a34 100644
--- a/frontend/src/components/ErrorBox.tsx
+++ b/frontend/src/components/ErrorBox.tsx
@@ -9,12 +9,12 @@ export default function ErrorBox({ message, onRetry }: Props) {
   return (
     <div
       role="alert"
-      className="flex items-start gap-3 rounded-md border border-red-200 bg-red-50 p-3 text-sm text-red-800"
+      className="flex items-start gap-3 rounded-md border border-red-500/50 bg-red-900/30 p-3 text-sm text-red-200"
     >
       <AlertTriangle className="mt-0.5 h-5 w-5 shrink-0" aria-hidden />
       <div className="flex-1">
-        <div className="font-medium">Something went wrong</div>
-        <div className="mt-0.5 break-words text-red-700">{message}</div>
+        <div className="font-medium text-red-100">Something went wrong</div>
+        <div className="mt-0.5 break-words text-red-300">{message}</div>
       </div>
       {onRetry && (
         <button type="button" onClick={onRetry} className="btn-secondary !px-2 !py-1 text-xs">
diff --git a/frontend/src/components/FilterBar.tsx b/frontend/src/components/FilterBar.tsx
index 633b3f3..e2512fa 100644
--- a/frontend/src/components/FilterBar.tsx
+++ b/frontend/src/components/FilterBar.tsx
@@ -1,5 +1,4 @@
 import { useMemo } from 'react';
-import { RotateCcw } from 'lucide-react';
 import type { Dispatch } from 'react';
 import type { FilterAction, FilterState } from '../lib/filters';
 import { PRESET_LABELS, type DatePreset } from '../lib/dates';
@@ -19,6 +18,30 @@ interface Props {
   showForecastToggle?: boolean;
 }
 
+/**
+ * Small slate dropdown stacked under an `xs` label — matches the original
+ * AppFilters layout. Used by both single and multi selects below.
+ */
+function Field({
+  label,
+  children,
+  tutorialId,
+}: {
+  label: string;
+  children: React.ReactNode;
+  tutorialId?: string;
+}) {
+  return (
+    <label
+      className="flex flex-col text-xs text-slate-400 gap-1"
+      data-tutorial-id={tutorialId}
+    >
+      {label}
+      {children}
+    </label>
+  );
+}
+
 function MultiSelect({
   label,
   options,
@@ -33,14 +56,12 @@ function MultiSelect({
   tutorialId?: string;
 }) {
   return (
-    <div className="min-w-[10rem] flex-1">
-      <label className="label">{label}</label>
+    <Field label={label} tutorialId={tutorialId}>
       <select
         multiple
         value={selected}
         onChange={(e) => onChange(Array.from(e.target.selectedOptions, (o) => o.value))}
-        className="input h-24"
-        data-tutorial-id={tutorialId}
+        className="bg-slate-800 border border-slate-600 rounded px-2 py-1 text-slate-200 text-xs min-w-[130px] h-20"
       >
         {options.map((o) => (
           <option key={o} value={o}>
@@ -48,7 +69,7 @@ function MultiSelect({
           </option>
         ))}
       </select>
-    </div>
+    </Field>
   );
 }
 
@@ -70,135 +91,134 @@ export default function FilterBar({
   );
 
   return (
-    <div className="card space-y-3" data-tutorial-id="filter-bar">
-      <div className="flex flex-wrap items-end gap-3">
-        <div>
-          <label className="label" htmlFor="preset">Date range</label>
-          <select
-            id="preset"
-            value={state.preset}
-            onChange={(e) => dispatch({ type: 'set-preset', preset: e.target.value as DatePreset })}
-            className="input"
-          >
-            {PRESETS.map((p) => (
-              <option key={p} value={p}>
-                {PRESET_LABELS[p]}
-              </option>
-            ))}
-          </select>
-        </div>
+    <div
+      className="bg-slate-900/30 border border-slate-800 rounded-md px-4 py-3 flex flex-wrap gap-3 items-end"
+      data-tutorial-id="filter-bar"
+    >
+      <Field label="Date range">
+        <select
+          value={state.preset}
+          onChange={(e) => dispatch({ type: 'set-preset', preset: e.target.value as DatePreset })}
+          className="bg-slate-800 border border-slate-600 rounded px-2 py-1 text-slate-200 text-xs min-w-[130px]"
+        >
+          {PRESETS.map((p) => (
+            <option key={p} value={p}>
+              {PRESET_LABELS[p]}
+            </option>
+          ))}
+        </select>
+      </Field>
 
-        <div>
-          <label className="label" htmlFor="from">From</label>
-          <input
-            id="from"
-            type="date"
-            value={customRange.from}
-            onChange={(e) =>
-              dispatch({ type: 'set-custom-range', range: { from: e.target.value, to: customRange.to } })
-            }
-            className="input"
-          />
-        </div>
-        <div>
-          <label className="label" htmlFor="to">To</label>
-          <input
-            id="to"
-            type="date"
-            value={customRange.to}
-            onChange={(e) =>
-              dispatch({ type: 'set-custom-range', range: { from: customRange.from, to: e.target.value } })
-            }
-            className="input"
-          />
-        </div>
-
-        <div className="ml-auto flex items-end gap-3">
-          {showForecastToggle && (
-            <label className="flex items-center gap-2 text-sm text-slate-700">
-              <input
-                type="checkbox"
-                checked={state.showForecast}
-                onChange={() => dispatch({ type: 'toggle-forecast' })}
-                data-tutorial-id="forecast-toggle"
-              />
-              {state.showForecast ? 'Forecast line visible' : 'Forecast line hidden'}
-            </label>
-          )}
-
-          <button type="button" onClick={() => dispatch({ type: 'reset' })} className="btn-secondary">
-            <RotateCcw className="h-4 w-4" aria-hidden /> Reset
-          </button>
-        </div>
-      </div>
-
-      <div className="flex flex-wrap gap-3">
-        <MultiSelect
-          label="Department"
-          options={departments}
-          selected={state.departments}
-          onChange={(v) => dispatch({ type: 'set-departments', departments: v })}
-          tutorialId="filter-department"
+      <Field label="From">
+        <input
+          type="date"
+          value={customRange.from}
+          onChange={(e) =>
+            dispatch({ type: 'set-custom-range', range: { from: e.target.value, to: customRange.to } })
+          }
+          className="bg-slate-800 border border-slate-600 rounded px-2 py-1 text-slate-200 text-xs"
         />
-        <MultiSelect
-          label="Name"
-          options={names}
-          selected={state.names}
-          onChange={(v) => dispatch({ type: 'set-names', names: v })}
-          tutorialId="filter-name"
+      </Field>
+      <Field label="To">
+        <input
+          type="date"
+          value={customRange.to}
+          onChange={(e) =>
+            dispatch({ type: 'set-custom-range', range: { from: customRange.from, to: e.target.value } })
+          }
+          className="bg-slate-800 border border-slate-600 rounded px-2 py-1 text-slate-200 text-xs"
         />
-        <div className="min-w-[10rem] flex-1">
-          <label className="label" htmlFor="billing-type">Billing type</label>
-          <select
-            id="billing-type"
-            value={state.billingType ?? ''}
-            onChange={(e) =>
-              dispatch({ type: 'set-billing-type', billingType: e.target.value === '' ? null : e.target.value })
-            }
-            className="input"
-          >
-            <option value="">All</option>
-            {billingTypes.map((b) => (
-              <option key={b} value={b}>
-                {b}
-              </option>
-            ))}
-          </select>
-        </div>
-      </div>
+      </Field>
 
-      {(brands.length > 0 || divisions.length > 0 || hubs.length > 0 || userRoles.length > 0) && (
-        <div className="flex flex-wrap gap-3 border-t border-slate-200 pt-3">
-          <MultiSelect
-            label="Brand"
-            options={brands}
-            selected={state.brands}
-            onChange={(v) => dispatch({ type: 'set-brands', brands: v })}
-            tutorialId="filter-brand"
-          />
-          <MultiSelect
-            label="Division"
-            options={divisions}
-            selected={state.divisions}
-            onChange={(v) => dispatch({ type: 'set-divisions', divisions: v })}
-            tutorialId="filter-division"
-          />
-          <MultiSelect
-            label="Hub / Market"
-            options={hubs}
-            selected={state.hubs}
-            onChange={(v) => dispatch({ type: 'set-hubs', hubs: v })}
-            tutorialId="filter-hub"
-          />
-          <MultiSelect
-            label="User role"
-            options={userRoles}
-            selected={state.userRoles}
-            onChange={(v) => dispatch({ type: 'set-user-roles', userRoles: v })}
-            tutorialId="filter-user-role"
-          />
-        </div>
+      <MultiSelect
+        label="Department"
+        options={departments}
+        selected={state.departments}
+        onChange={(v) => dispatch({ type: 'set-departments', departments: v })}
+        tutorialId="filter-department"
+      />
+      <MultiSelect
+        label="Name"
+        options={names}
+        selected={state.names}
+        onChange={(v) => dispatch({ type: 'set-names', names: v })}
+        tutorialId="filter-name"
+      />
+
+      <Field label="Billing type">
+        <select
+          value={state.billingType ?? ''}
+          onChange={(e) =>
+            dispatch({ type: 'set-billing-type', billingType: e.target.value === '' ? null : e.target.value })
+          }
+          className="bg-slate-800 border border-slate-600 rounded px-2 py-1 text-slate-200 text-xs min-w-[130px]"
+        >
+          <option value="">All</option>
+          {billingTypes.map((b) => (
+            <option key={b} value={b}>
+              {b}
+            </option>
+          ))}
+        </select>
+      </Field>
+
+      {brands.length > 0 && (
+        <MultiSelect
+          label="Brand"
+          options={brands}
+          selected={state.brands}
+          onChange={(v) => dispatch({ type: 'set-brands', brands: v })}
+          tutorialId="filter-brand"
+        />
       )}
+      {divisions.length > 0 && (
+        <MultiSelect
+          label="Division"
+          options={divisions}
+          selected={state.divisions}
+          onChange={(v) => dispatch({ type: 'set-divisions', divisions: v })}
+          tutorialId="filter-division"
+        />
+      )}
+      {hubs.length > 0 && (
+        <MultiSelect
+          label="Hub / Market"
+          options={hubs}
+          selected={state.hubs}
+          onChange={(v) => dispatch({ type: 'set-hubs', hubs: v })}
+          tutorialId="filter-hub"
+        />
+      )}
+      {userRoles.length > 0 && (
+        <MultiSelect
+          label="User role"
+          options={userRoles}
+          selected={state.userRoles}
+          onChange={(v) => dispatch({ type: 'set-user-roles', userRoles: v })}
+          tutorialId="filter-user-role"
+        />
+      )}
+
+      {showForecastToggle && (
+        <label className="flex items-center gap-2 text-xs text-slate-300 mt-4">
+          <input
+            type="checkbox"
+            checked={state.showForecast}
+            onChange={() => dispatch({ type: 'toggle-forecast' })}
+            data-tutorial-id="forecast-toggle"
+            className="accent-indigo-500"
+          />
+          {state.showForecast ? 'Forecast visible' : 'Forecast hidden'}
+        </label>
+      )}
+
+      <button
+        type="button"
+        onClick={() => dispatch({ type: 'reset' })}
+        className="text-xs text-slate-400 hover:text-slate-200 mt-4 ml-auto"
+      >
+        Reset
+      </button>
     </div>
   );
 }
diff --git a/frontend/src/components/HeaderUploads.tsx b/frontend/src/components/HeaderUploads.tsx
index d32446d..4795e57 100644
--- a/frontend/src/components/HeaderUploads.tsx
+++ b/frontend/src/components/HeaderUploads.tsx
@@ -1,128 +1,114 @@
-import { useRef } from 'react';
-import { Upload, FileSpreadsheet, X, Loader2 } from 'lucide-react';
 import { useDataContext } from '../hooks/useDataContext';
 
 const ACCEPT = '.xlsx,.csv,application/vnd.openxmlformats-officedocument.spreadsheetml.sheet,text/csv';
 
-interface SlotProps {
-  label: string;
-  filename: string | null;
-  rows: number;
-  uploading: boolean;
-  error: string | null;
-  onFile: (f: File) => void;
-  onClear?: () => void;
-}
-
-function Slot({ label, filename, rows, uploading, error, onFile, onClear }: SlotProps) {
-  const inputRef = useRef<HTMLInputElement>(null);
-
-  const onChange = (e: React.ChangeEvent<HTMLInputElement>) => {
-    const f = e.target.files?.[0];
-    if (f) onFile(f);
-    e.target.value = '';
-  };
-
-  const status = uploading
-    ? 'uploading'
-    : error
-      ? 'error'
-      : filename
-        ? 'loaded'
-        : 'empty';
-
-  return (
-    <div
-      className={[
-        'flex items-center gap-2 rounded-md border px-2 py-1 text-xs transition-colors',
-        status === 'loaded' && 'border-emerald-300 bg-emerald-50 text-emerald-900',
-        status === 'empty' && 'border-slate-300 bg-white text-slate-600 hover:border-slate-400',
-        status === 'uploading' && 'border-slate-300 bg-slate-50 text-slate-500',
-        status === 'error' && 'border-red-300 bg-red-50 text-red-800',
-      ].filter(Boolean).join(' ')}
-    >
-      {uploading ? (
-        <Loader2 className="h-3.5 w-3.5 animate-spin" aria-hidden />
-      ) : (
-        <FileSpreadsheet className="h-3.5 w-3.5" aria-hidden />
-      )}
-
-      <div className="flex min-w-0 flex-col">
-        <span className="font-semibold uppercase tracking-wide opacity-70">{label}</span>
-        {status === 'loaded' && (
-          <span className="max-w-[180px] truncate" title={filename ?? ''}>
-            {filename} <span className="opacity-60">· {rows.toLocaleString()} rows</span>
-          </span>
-        )}
-        {status === 'uploading' && <span>Parsing…</span>}
-        {status === 'empty' && <span>Not uploaded</span>}
-        {status === 'error' && <span className="truncate" title={error ?? ''}>{error}</span>}
-      </div>
-
-      <input
-        ref={inputRef}
-        type="file"
-        accept={ACCEPT}
-        className="hidden"
-        onChange={onChange}
-      />
-      <button
-        type="button"
-        onClick={() => inputRef.current?.click()}
-        disabled={uploading}
-        className="ml-auto inline-flex items-center gap-1 rounded border border-slate-300 bg-white px-1.5 py-0.5 text-[11px] text-slate-700 hover:bg-slate-50 disabled:opacity-50"
-        aria-label={`Upload ${label}`}
-      >
-        <Upload className="h-3 w-3" aria-hidden /> {filename ? 'Replace' : 'Upload'}
-      </button>
-      {filename && onClear && (
-        <button
-          type="button"
-          onClick={onClear}
-          className="rounded p-0.5 text-slate-500 hover:bg-white hover:text-slate-800"
-          aria-label={`Clear ${label}`}
-        >
-          <X className="h-3 w-3" aria-hidden />
-        </button>
-      )}
-    </div>
-  );
-}
-
+/**
+ * Three pill-style file uploads that sit in the header's right side: Time
+ * Log (indigo when loaded), Deliverable (emerald when loaded), Project
+ * Summary (violet when loaded). Re-uploading replaces the file — there is no
+ * explicit Clear button (matches the original SPA's behaviour).
+ */
 export default function HeaderUploads() {
   const {
     timelog, deliverable, projectSummary,
     uploadTimelog, uploadDeliverable, uploadProjectSummary,
-    clearTimelog,
   } = useDataContext();
 
+  const onPick = (handler: (f: File) => Promise<void>) => (e: React.ChangeEvent<HTMLInputElement>) => {
+    const f = e.target.files?.[0];
+    if (f) void handler(f);
+    e.target.value = '';
+  };
+
   return (
-    <div className="flex flex-wrap items-center gap-2" data-tutorial-id="header-uploads">
-      <Slot
-        label="Time Log"
-        filename={timelog.filename}
-        rows={timelog.rows}
-        uploading={timelog.uploading}
-        error={timelog.error}
-        onFile={(f) => void uploadTimelog(f)}
-        onClear={clearTimelog}
-      />
-      <Slot
-        label="Deliverable"
-        filename={deliverable.filename}
-        rows={deliverable.rows}
-        uploading={deliverable.uploading}
-        error={deliverable.error}
-        onFile={(f) => void uploadDeliverable(f)}
-      />
-      <Slot
-        label="Project Summary"
-        filename={projectSummary.filename}
-        rows={projectSummary.rows}
-        uploading={projectSummary.uploading}
-        error={projectSummary.error}
-        onFile={(f) => void uploadProjectSummary(f)}
-      />
+    <div className="flex flex-wrap items-center gap-3" data-tutorial-id="header-uploads">
+      {/* Time Log — indigo primary */}
+      <label className="cursor-pointer">
+        <input
+          type="file"
+          accept={ACCEPT}
+          onChange={onPick(uploadTimelog)}
+          className="hidden"
+          disabled={timelog.uploading}
+        />
+        <span className="inline-flex items-center gap-2 bg-indigo-600 hover:bg-indigo-500 text-white text-sm font-medium px-4 py-2 rounded-lg transition-colors">
+          {timelog.uploading ? 'Parsing…' : timelog.rows ? '↑ Time Log' : 'Upload Time Log'}
+        </span>
+      </label>
+      {timelog.filename && !timelog.error && (
+        <span className="text-[10px] text-slate-500 max-w-[160px] truncate" title={timelog.filename}>
+          {timelog.filename}
+        </span>
+      )}
+
+      {/* Deliverable — emerald when loaded, neutral when empty */}
+      <label className="cursor-pointer">
+        <input
+          type="file"
+          accept={ACCEPT}
+          onChange={onPick(uploadDeliverable)}
+          className="hidden"
+          disabled={deliverable.uploading}
+        />
+        <span
+          className={`inline-flex items-center gap-2 text-sm font-medium px-4 py-2 rounded-lg border transition-colors ${
+            deliverable.rows
+              ? 'bg-emerald-700/30 border-emerald-500/50 text-emerald-300 hover:bg-emerald-700/50'
+              : 'bg-slate-700 border-slate-600 text-slate-300 hover:bg-slate-600'
+          }`}
+        >
+          {deliverable.uploading
+            ? 'Parsing…'
+            : deliverable.rows
+              ? `✓ ${deliverable.rows.toLocaleString()} deliverables`
+              : '↑ Deliverable'}
+        </span>
+      </label>
+      {deliverable.filename && !deliverable.error && (
+        <span className="text-[10px] text-slate-500 max-w-[160px] truncate" title={deliverable.filename}>
+          {deliverable.filename}
+        </span>
+      )}
+
+      {/* Project Summary — violet when loaded, neutral when empty */}
+      <label className="cursor-pointer">
+        <input
+          type="file"
+          accept={ACCEPT}
+          onChange={onPick(uploadProjectSummary)}
+          className="hidden"
+          disabled={projectSummary.uploading}
+        />
+        <span
+          className={`inline-flex items-center gap-2 text-sm font-medium px-4 py-2 rounded-lg border transition-colors ${
+            projectSummary.rows
+              ? 'bg-violet-700/30 border-violet-500/50 text-violet-300 hover:bg-violet-700/50'
+              : 'bg-slate-700 border-slate-600 text-slate-300 hover:bg-slate-600'
+          }`}
+        >
+          {projectSummary.uploading
+            ? 'Parsing…'
+            : projectSummary.rows
+              ? `✓ ${projectSummary.rows.toLocaleString()} projects`
+              : '↑ Project Summary'}
+        </span>
+      </label>
+      {projectSummary.filename && !projectSummary.error && (
+        <span className="text-[10px] text-violet-500 max-w-[160px] truncate" title={projectSummary.filename}>
+          {projectSummary.filename}
+        </span>
+      )}
+
+      {/* Errors collapse into a small, truncated marker so the header height
+          doesn't jump. Full message still appears on hover. */}
+      {(timelog.error || deliverable.error || projectSummary.error) && (
+        <span
+          className="text-xs text-red-400 truncate max-w-[180px]"
+          title={timelog.error ?? deliverable.error ?? projectSummary.error ?? ''}
+        >
+          ⚠ {(timelog.error ?? deliverable.error ?? projectSummary.error)?.slice(0, 60)}
+        </span>
+      )}
     </div>
   );
 }
diff --git a/frontend/src/components/HourBreakdown.tsx b/frontend/src/components/HourBreakdown.tsx
index 6bf5d10..fe62c2f 100644
--- a/frontend/src/components/HourBreakdown.tsx
+++ b/frontend/src/components/HourBreakdown.tsx
@@ -53,39 +53,39 @@ export default function HourBreakdown({ period, employee, from, to, timelogHash,
   return (
     <div className="card" data-tutorial-id="hour-breakdown">
       <div className="mb-2 flex items-baseline justify-between gap-2">
-        <h3 className="text-sm font-semibold text-slate-700">
+        <h3 className="text-sm font-semibold text-slate-200">
           Hour Breakdown — {formatPeriod(period)}
-          {employee && <span className="ml-2 text-slate-500">· {employee}</span>}
+          {employee && <span className="ml-2 text-slate-400">· {employee}</span>}
         </h3>
         <button
           type="button"
           onClick={onClose}
-          className="rounded p-1 text-slate-500 hover:bg-slate-100"
+          className="rounded p-1 text-slate-400 hover:bg-slate-800 hover:text-slate-200"
           aria-label="Close hour breakdown"
         >
           <X className="h-4 w-4" aria-hidden />
         </button>
       </div>
 
-      {loading && <div className="text-sm text-slate-500">Loading breakdown…</div>}
-      {error && <div className="text-sm text-red-700">{error}</div>}
+      {loading && <div className="text-sm text-slate-400">Loading breakdown…</div>}
+      {error && <div className="text-sm text-red-300">{error}</div>}
 
       {!loading && !error && data && (
         <div className="grid gap-4 md:grid-cols-2">
           <div>
-            <div className="mb-1 text-xs font-semibold uppercase tracking-wide text-slate-500">
+            <div className="mb-1 text-xs font-semibold uppercase tracking-wide text-slate-400">
               Logged by project
             </div>
             {!data.hasLogged ? (
-              <div className="rounded-md bg-slate-50 p-3 text-sm text-slate-600">
+              <div className="rounded-md bg-slate-800 p-3 text-sm text-slate-300 border border-slate-700">
                 Upload a time log to see logged breakdown.
               </div>
             ) : data.logged.length === 0 ? (
-              <div className="text-sm text-slate-500">No logged hours in this period.</div>
+              <div className="text-sm text-slate-400">No logged hours in this period.</div>
             ) : (
-              <table className="w-full text-sm">
+              <table className="w-full text-sm text-slate-300">
                 <thead>
-                  <tr className="text-left text-xs uppercase text-slate-500">
+                  <tr className="text-left text-xs uppercase text-slate-400">
                     <th className="pb-1">Project</th>
                     <th className="pb-1 text-right">Hours</th>
                     <th className="pb-1 text-right">Billable</th>
@@ -93,10 +93,10 @@ export default function HourBreakdown({ period, employee, from, to, timelogHash,
                 </thead>
                 <tbody>
                   {data.logged.map((r) => (
-                    <tr key={r.project} className="border-t border-slate-100">
+                    <tr key={r.project} className="border-t border-slate-800">
                       <td className="py-1 pr-2 truncate" title={r.project}>{r.project}</td>
                       <td className="py-1 text-right tabular-nums">{formatHours(r.hours)}</td>
-                      <td className="py-1 text-right tabular-nums text-emerald-700">{formatHours(r.billable)}</td>
+                      <td className="py-1 text-right tabular-nums text-emerald-400">{formatHours(r.billable)}</td>
                     </tr>
                   ))}
                 </tbody>
@@ -105,15 +105,15 @@ export default function HourBreakdown({ period, employee, from, to, timelogHash,
           </div>
 
           <div>
-            <div className="mb-1 text-xs font-semibold uppercase tracking-wide text-slate-500">
+            <div className="mb-1 text-xs font-semibold uppercase tracking-wide text-slate-400">
               Booked by project
             </div>
             {data.booked.length === 0 ? (
-              <div className="text-sm text-slate-500">No bookings in this period.</div>
+              <div className="text-sm text-slate-400">No bookings in this period.</div>
             ) : (
-              <table className="w-full text-sm">
+              <table className="w-full text-sm text-slate-300">
                 <thead>
-                  <tr className="text-left text-xs uppercase text-slate-500">
+                  <tr className="text-left text-xs uppercase text-slate-400">
                     <th className="pb-1">Project</th>
                     <th className="pb-1 text-right">Hours</th>
                     <th className="pb-1 text-right">Active</th>
@@ -122,11 +122,11 @@ export default function HourBreakdown({ period, employee, from, to, timelogHash,
                 </thead>
                 <tbody>
                   {data.booked.map((r) => (
-                    <tr key={r.project} className="border-t border-slate-100">
+                    <tr key={r.project} className="border-t border-slate-800">
                       <td className="py-1 pr-2 truncate" title={r.project}>{r.project}</td>
                       <td className="py-1 text-right tabular-nums">{formatHours(r.hours)}</td>
-                      <td className="py-1 text-right tabular-nums text-blue-700">{formatHours(r.active)}</td>
-                      <td className="py-1 text-right tabular-nums text-indigo-500">{formatHours(r.soft)}</td>
+                      <td className="py-1 text-right tabular-nums text-indigo-300">{formatHours(r.active)}</td>
+                      <td className="py-1 text-right tabular-nums text-indigo-400">{formatHours(r.soft)}</td>
                     </tr>
                   ))}
                 </tbody>
diff --git a/frontend/src/components/KpiTiles.tsx b/frontend/src/components/KpiTiles.tsx
index c2a5c61..d5eef9f 100644
--- a/frontend/src/components/KpiTiles.tsx
+++ b/frontend/src/components/KpiTiles.tsx
@@ -48,17 +48,17 @@ export default function KpiTiles({ totals, period = 'week' }: Props) {
   return (
     <div className="card space-y-2" data-tutorial-id="kpi-tiles">
       <div className="flex items-baseline justify-between">
-        <h3 className="text-sm font-semibold text-slate-700">Headline numbers</h3>
+        <h3 className="text-sm font-semibold text-slate-200">Headline numbers</h3>
         {periodCovered && (
-          <span className="text-xs text-slate-500">Period covered: {periodCovered}</span>
+          <span className="text-xs text-slate-400">Period covered: {periodCovered}</span>
         )}
       </div>
       <div className="grid grid-cols-2 gap-3 sm:grid-cols-3 lg:grid-cols-4">
         {tiles.map((t) => (
-          <div key={t.label} className="rounded-md bg-slate-50 p-3 ring-1 ring-slate-200">
-            <div className="text-[11px] font-medium uppercase tracking-wide text-slate-500">{t.label}</div>
-            <div className="mt-1 text-xl font-semibold tabular-nums text-slate-900">{t.value}</div>
-            {t.hint && <div className="mt-0.5 text-xs text-slate-500">{t.hint}</div>}
+          <div key={t.label} className="rounded-md bg-slate-800 p-3 border border-slate-700">
+            <div className="text-[11px] font-medium uppercase tracking-wide text-slate-400">{t.label}</div>
+            <div className="mt-1 text-xl font-semibold tabular-nums text-white">{t.value}</div>
+            {t.hint && <div className="mt-0.5 text-xs text-slate-400">{t.hint}</div>}
           </div>
         ))}
       </div>
diff --git a/frontend/src/components/Loading.tsx b/frontend/src/components/Loading.tsx
index ab12ee2..86e1799 100644
--- a/frontend/src/components/Loading.tsx
+++ b/frontend/src/components/Loading.tsx
@@ -2,8 +2,8 @@ import { Loader2 } from 'lucide-react';
 
 export default function Loading({ label = 'Loading…' }: { label?: string }) {
   return (
-    <div className="flex items-center justify-center gap-3 p-8 text-slate-500">
-      <Loader2 className="h-5 w-5 animate-spin" aria-hidden />
+    <div className="flex items-center justify-center gap-3 p-8 text-slate-400">
+      <Loader2 className="h-5 w-5 animate-spin text-indigo-500" aria-hidden />
       <span>{label}</span>
     </div>
   );
diff --git a/frontend/src/components/Navbar.tsx b/frontend/src/components/Navbar.tsx
index 124f865..984a641 100644
--- a/frontend/src/components/Navbar.tsx
+++ b/frontend/src/components/Navbar.tsx
@@ -1,6 +1,7 @@
 import { NavLink, useNavigate } from 'react-router-dom';
-import { LogOut, BarChart3 } from 'lucide-react';
+import { BarChart3 } from 'lucide-react';
 import { canAccess, useAuth } from '../hooks/useAuth';
+import { useDataContext } from '../hooks/useDataContext';
 import HeaderUploads from './HeaderUploads';
 
 interface Tab {
@@ -25,6 +26,7 @@ const TABS: Tab[] = [
 export default function Navbar() {
   const { user, logout } = useAuth();
   const navigate = useNavigate();
+  const { timelog } = useDataContext();
 
   const handleLogout = async () => {
     await logout();
@@ -33,54 +35,74 @@ export default function Navbar() {
 
   const visible = TABS.filter((t) => canAccess(user?.role, t.slug));
 
+  // Mirror the original SPA: filename + upload time once a timelog is loaded,
+  // tagline otherwise. We don't have a true "uploaded at" timestamp on the
+  // context, so we fall back to "ready" when the upload is parsed.
+  const subtitle = timelog.filename
+    ? `${timelog.filename} · ${timelog.rows.toLocaleString()} rows`
+    : "Daily capacity & project intake analysis";
+
   return (
-    <header className="bg-slate-900 text-slate-100 shadow-md" data-tutorial-id="navbar">
-      <div className="mx-auto flex w-full max-w-7xl items-center gap-4 px-4 py-3 md:px-6">
-        <div className="flex items-center gap-2 font-semibold tracking-wide">
-          <BarChart3 className="h-5 w-5 text-blue-400" aria-hidden />
-          <span>Utilisation</span>
+    <header className="bg-slate-900 border-b border-slate-700" data-tutorial-id="navbar">
+      {/* Title row: brand on the left, uploads + identity on the right */}
+      <div className="flex items-center gap-4 px-4 py-3 md:px-6">
+        <div className="flex items-center gap-2">
+          <BarChart3 className="h-5 w-5 text-indigo-400" aria-hidden />
+          <div className="leading-tight">
+            <h1 className="text-xl font-bold text-white">L&apos;Oréal Utilisation Dashboard</h1>
+            <p className="text-xs text-slate-400 truncate max-w-[60ch]" title={subtitle}>
+              {subtitle}
+            </p>
+          </div>
         </div>
-        <nav className="flex flex-wrap items-center gap-1">
-          {visible.map((tab) => (
-            <NavLink
-              key={tab.to}
-              to={tab.to}
-              end={tab.end}
-              data-tutorial-id={`tab-${tab.slug}`}
-              className={({ isActive }) =>
-                [
-                  'rounded-md px-3 py-1.5 text-sm font-medium transition',
-                  isActive ? 'bg-slate-800 text-white' : 'text-slate-300 hover:bg-slate-800 hover:text-white',
-                ].join(' ')
-              }
-            >
-              {tab.label}
-            </NavLink>
-          ))}
-        </nav>
-        <div className="ml-auto flex items-center gap-3 text-sm">
-          {user && (
-            <span className="text-slate-400">
-              Signed in as <span className="text-slate-200">{user.username}</span>
-              {user.role && <span className="ml-1 rounded bg-slate-800 px-1.5 py-0.5 text-[10px] uppercase tracking-wide text-slate-300">{user.role}</span>}
-            </span>
-          )}
-          <button
-            type="button"
-            onClick={handleLogout}
-            className="inline-flex items-center gap-1.5 rounded-md bg-slate-800 px-3 py-1.5 text-sm text-slate-200 hover:bg-slate-700"
-            data-tutorial-id="logout-button"
-          >
-            <LogOut className="h-4 w-4" aria-hidden /> Log out
-          </button>
-        </div>
-      </div>
-      {/* Compact upload tray — always visible so every data page can feed it. */}
-      <div className="border-t border-slate-800 bg-slate-50 px-4 py-2 md:px-6">
-        <div className="mx-auto w-full max-w-7xl">
+
+        <div className="ml-auto flex items-center gap-3">
           <HeaderUploads />
+
+          {user && (
+            <div className="flex items-center gap-2 border-l border-slate-700 pl-3 ml-1">
+              <span className="text-xs text-slate-400 hidden sm:inline">
+                {user.username}
+                {user.role && (
+                  <span className="ml-1 rounded bg-slate-800 px-1.5 py-0.5 text-[10px] uppercase tracking-wide text-slate-300">
+                    {user.role}
+                  </span>
+                )}
+              </span>
+              <button
+                type="button"
+                onClick={handleLogout}
+                className="text-xs text-slate-500 hover:text-red-400 transition-colors"
+                data-tutorial-id="logout-button"
+              >
+                Sign out
+              </button>
+            </div>
+          )}
         </div>
       </div>
+
+      {/* Tab row: bordered "tab" look, hangs off the content border. */}
+      <nav className="flex flex-wrap gap-1 px-4 pt-2 md:px-6 border-b border-slate-800">
+        {visible.map((tab) => (
+          <NavLink
+            key={tab.to}
+            to={tab.to}
+            end={tab.end}
+            data-tutorial-id={`tab-${tab.slug}`}
+            className={({ isActive }) =>
+              [
+                'px-4 py-2 text-sm font-medium rounded-t-lg transition-colors',
+                isActive
+                  ? 'bg-slate-800 text-white border-t border-x border-slate-700'
+                  : 'text-slate-400 hover:text-slate-200',
+              ].join(' ')
+            }
+          >
+            {tab.label}
+          </NavLink>
+        ))}
+      </nav>
     </header>
   );
 }
diff --git a/frontend/src/components/PeriodToggle.tsx b/frontend/src/components/PeriodToggle.tsx
index b8cbb51..0a19fcc 100644
--- a/frontend/src/components/PeriodToggle.tsx
+++ b/frontend/src/components/PeriodToggle.tsx
@@ -22,7 +22,7 @@ const OPTIONS: { value: PeriodKind | 'day'; label: string }[] = [
 export default function PeriodToggle({ value, onChange, includeDay = false }: Props) {
   return (
     <div
-      className="inline-flex items-center rounded-md border border-slate-300 bg-white p-0.5 text-sm shadow-sm"
+      className="inline-flex items-center rounded-md border border-slate-600 bg-slate-800 p-0.5 text-sm shadow-sm"
       data-tutorial-id="period-toggle"
       role="radiogroup"
       aria-label="Aggregation period"
@@ -45,7 +45,7 @@ export default function PeriodToggle({ value, onChange, includeDay = false }: Pr
             }}
             className={[
               'rounded px-3 py-1 text-xs font-medium transition',
-              active ? 'bg-blue-600 text-white shadow-sm' : 'text-slate-600 hover:bg-slate-100',
+              active ? 'bg-indigo-600 text-white shadow-sm' : 'text-slate-300 hover:bg-slate-700',
               disabled ? 'cursor-not-allowed opacity-40 hover:bg-transparent' : '',
             ].join(' ')}
           >
diff --git a/frontend/src/components/StatsBar.tsx b/frontend/src/components/StatsBar.tsx
index b836c01..89dd8c9 100644
--- a/frontend/src/components/StatsBar.tsx
+++ b/frontend/src/components/StatsBar.tsx
@@ -25,13 +25,13 @@ export default function StatsBar() {
 
   return (
     <div
-      className="bg-slate-900/95 text-slate-100 border-b border-slate-800 px-4 md:px-6 py-2 flex flex-wrap gap-6 text-sm"
+      className="bg-slate-900/50 border-b border-slate-800 px-4 md:px-6 py-3 flex flex-wrap gap-8 text-sm"
       data-tutorial-id="stats-bar"
     >
       {items.map((it) => (
-        <div key={it.label} className="flex flex-col">
-          <span className="text-[10px] uppercase tracking-wide text-slate-400">{it.label}</span>
-          <span className="font-semibold tabular-nums">{it.value}</span>
+        <div key={it.label}>
+          <div className="text-xs text-slate-400">{it.label}</div>
+          <div className="font-semibold text-white tabular-nums">{it.value}</div>
         </div>
       ))}
     </div>
diff --git a/frontend/src/components/UploadButton.tsx b/frontend/src/components/UploadButton.tsx
index 79ec905..8c65bcb 100644
--- a/frontend/src/components/UploadButton.tsx
+++ b/frontend/src/components/UploadButton.tsx
@@ -49,11 +49,11 @@ export default function UploadButton({
         onDrop={onDrop}
         className={[
           'flex flex-col items-center justify-center gap-2 rounded-lg border-2 border-dashed p-6 text-center transition',
-          dragOver ? 'border-blue-400 bg-blue-50' : 'border-slate-300 bg-white',
+          dragOver ? 'border-indigo-500 bg-indigo-900/20' : 'border-slate-600 bg-slate-900',
         ].join(' ')}
       >
         <FileSpreadsheet className="h-8 w-8 text-slate-400" aria-hidden />
-        <p className="text-sm text-slate-600">
+        <p className="text-sm text-slate-300">
           Drag &amp; drop a timelog file (<code>.xlsx</code> or <code>.csv</code>), or
         </p>
         <button
@@ -67,11 +67,11 @@ export default function UploadButton({
         </button>
         <input ref={inputRef} type="file" accept={ACCEPT} hidden onChange={onChange} />
         {filename && !error && (
-          <div className="mt-2 flex items-center gap-2 text-xs text-slate-500">
+          <div className="mt-2 flex items-center gap-2 text-xs text-slate-400">
             <span>
               {filename} — {rowCount} row{rowCount === 1 ? '' : 's'}
             </span>
-            <button type="button" onClick={onClear} className="text-slate-400 hover:text-slate-700">
+            <button type="button" onClick={onClear} className="text-slate-500 hover:text-slate-200">
               <X className="h-3.5 w-3.5" aria-hidden />
               <span className="sr-only">Clear</span>
             </button>
@@ -79,13 +79,13 @@ export default function UploadButton({
         )}
       </div>
 
-      {error && <div className="rounded-md border border-red-200 bg-red-50 p-2 text-xs text-red-800">{error}</div>}
+      {error && <div className="rounded-md border border-red-500/50 bg-red-900/30 p-2 text-xs text-red-300">{error}</div>}
 
       {unrecognised.length > 0 && (
-        <div className="rounded-md border border-yellow-300 bg-yellow-50 p-2 text-xs text-yellow-900">
+        <div className="rounded-md border border-amber-500/50 bg-amber-900/30 p-2 text-xs text-amber-200">
           <strong>Couldn&apos;t find expected column{unrecognised.length > 1 ? 's' : ''}:</strong>{' '}
           {unrecognised.join(', ')}
-          <span className="ml-1 text-yellow-700">
+          <span className="ml-1 text-amber-300">
             — Zoho may have renamed a header. Charts will be incomplete.
           </span>
         </div>
diff --git a/frontend/src/components/charts/BillabilityBreakdown.tsx b/frontend/src/components/charts/BillabilityBreakdown.tsx
index 41913c1..2e67806 100644
--- a/frontend/src/components/charts/BillabilityBreakdown.tsx
+++ b/frontend/src/components/charts/BillabilityBreakdown.tsx
@@ -88,9 +88,13 @@ const SERIES: { key: keyof Bucket; name: string; fill: string }[] = [
   { key: 'billable', name: 'Billable', fill: '#10b981' },
   { key: 'nonBillable', name: 'Non-billable', fill: '#f59e0b' },
   { key: 'leave', name: 'Leave', fill: '#a855f7' },
-  { key: 'idle', name: 'Idle', fill: '#cbd5e1' },
+  { key: 'idle', name: 'Idle', fill: '#475569' },
 ];
 
+const AXIS_TICK = { fontSize: 11, fill: '#94a3b8' } as const;
+const Y_TICK = { fontSize: 12, fill: '#94a3b8' } as const;
+const TOOLTIP_CONTENT = { background: '#1e293b', border: '1px solid #334155', color: '#e2e8f0' } as const;
+
 export default function BillabilityBreakdown({ rows }: Props) {
   const data = aggregate(rows);
   const otherCount = data.length > 0 && data[data.length - 1].employee.startsWith('Other (')
@@ -100,8 +104,8 @@ export default function BillabilityBreakdown({ rows }: Props) {
   return (
     <div className="card" data-tutorial-id="chart-billability-breakdown">
       <div className="mb-2 flex items-baseline justify-between">
-        <h3 className="text-sm font-semibold text-slate-700">Billability Breakdown</h3>
-        <div className="flex flex-wrap items-center gap-2 text-xs text-slate-500">
+        <h3 className="text-sm font-semibold text-slate-200">Billability Breakdown</h3>
+        <div className="flex flex-wrap items-center gap-2 text-xs text-slate-400">
           {otherCount > 0 && <span>Top {TOP_N} by available + billable</span>}
           {SERIES.map((s) => (
             <span key={s.key as string} className="inline-flex items-center gap-1">
@@ -118,13 +122,15 @@ export default function BillabilityBreakdown({ rows }: Props) {
       <div className="h-80 w-full">
         <ResponsiveContainer>
           <BarChart data={data} margin={{ top: 10, right: 20, left: 0, bottom: 40 }}>
-            <CartesianGrid strokeDasharray="3 3" stroke="#e2e8f0" />
-            <XAxis dataKey="employee" tick={{ fontSize: 11 }} angle={-25} textAnchor="end" height={60} />
-            <YAxis tick={{ fontSize: 12 }} />
+            <CartesianGrid strokeDasharray="3 3" stroke="#334155" />
+            <XAxis dataKey="employee" tick={AXIS_TICK} angle={-25} textAnchor="end" height={60} stroke="#475569" />
+            <YAxis tick={Y_TICK} stroke="#475569" />
             <Tooltip
               wrapperStyle={{ maxWidth: 360 }}
-              itemStyle={{ fontSize: 12 }}
-              labelStyle={{ fontSize: 12, fontWeight: 600 }}
+              contentStyle={TOOLTIP_CONTENT}
+              itemStyle={{ fontSize: 12, color: '#e2e8f0' }}
+              labelStyle={{ fontSize: 12, fontWeight: 600, color: '#f1f5f9' }}
+              cursor={{ fill: 'rgba(99, 102, 241, 0.1)' }}
               filterNull
             />
             {SERIES.map((s) => (
diff --git a/frontend/src/components/charts/BookingVsActual.tsx b/frontend/src/components/charts/BookingVsActual.tsx
index 150f099..f683731 100644
--- a/frontend/src/components/charts/BookingVsActual.tsx
+++ b/frontend/src/components/charts/BookingVsActual.tsx
@@ -66,17 +66,22 @@ export default function BookingVsActual({ rows }: Props) {
 
   return (
     <div className="card" data-tutorial-id="chart-booking-vs-actual">
-      <h3 className="mb-2 text-sm font-semibold text-slate-700">Booking vs Actual</h3>
+      <h3 className="mb-2 text-sm font-semibold text-slate-200">Booking vs Actual</h3>
       <div className="h-80 w-full">
         <ResponsiveContainer>
           <BarChart data={data} margin={{ top: 10, right: 20, left: 0, bottom: 40 }}>
-            <CartesianGrid strokeDasharray="3 3" stroke="#e2e8f0" />
-            <XAxis dataKey="employee" tick={{ fontSize: 11 }} angle={-25} textAnchor="end" height={60} />
-            <YAxis tick={{ fontSize: 12 }} />
-            <Tooltip />
-            <Legend />
-            <Bar dataKey="activeBooked" name="Active Booked" stackId="booked" fill="#2563eb" />
-            <Bar dataKey="softBooked" name="Soft Booked" stackId="booked" fill="#93c5fd" />
+            <CartesianGrid strokeDasharray="3 3" stroke="#334155" />
+            <XAxis dataKey="employee" tick={{ fontSize: 11, fill: '#94a3b8' }} angle={-25} textAnchor="end" height={60} stroke="#475569" />
+            <YAxis tick={{ fontSize: 12, fill: '#94a3b8' }} stroke="#475569" />
+            <Tooltip
+              contentStyle={{ background: '#1e293b', border: '1px solid #334155', color: '#e2e8f0' }}
+              itemStyle={{ color: '#e2e8f0' }}
+              labelStyle={{ color: '#f1f5f9' }}
+              cursor={{ fill: 'rgba(99, 102, 241, 0.1)' }}
+            />
+            <Legend wrapperStyle={{ color: '#cbd5e1' }} />
+            <Bar dataKey="activeBooked" name="Active Booked" stackId="booked" fill="#6366f1" />
+            <Bar dataKey="softBooked" name="Soft Booked" stackId="booked" fill="#a5b4fc" />
             <Bar dataKey="actual" name="Actual" fill="#10b981" />
           </BarChart>
         </ResponsiveContainer>
diff --git a/frontend/src/components/charts/FTEvsFreelancer.tsx b/frontend/src/components/charts/FTEvsFreelancer.tsx
index 0990439..156bad2 100644
--- a/frontend/src/components/charts/FTEvsFreelancer.tsx
+++ b/frontend/src/components/charts/FTEvsFreelancer.tsx
@@ -76,15 +76,21 @@ function split(rows: UtilisationSummaryRow[]): { fte: Bucket[]; freelancer: Buck
 function MiniChart({ title, data, fill }: { title: string; data: Bucket[]; fill: string }) {
   return (
     <div className="card flex-1">
-      <h3 className="mb-2 text-sm font-semibold text-slate-700">{title}</h3>
+      <h3 className="mb-2 text-sm font-semibold text-slate-200">{title}</h3>
       <div className="h-72 w-full">
         <ResponsiveContainer>
           <BarChart data={data} margin={{ top: 10, right: 10, left: 0, bottom: 40 }}>
-            <CartesianGrid strokeDasharray="3 3" stroke="#e2e8f0" />
-            <XAxis dataKey="employee" tick={{ fontSize: 11 }} angle={-25} textAnchor="end" height={60} />
-            <YAxis tick={{ fontSize: 12 }} unit="%" />
-            <Tooltip formatter={(v: number) => `${v}%`} />
-            <Legend />
+            <CartesianGrid strokeDasharray="3 3" stroke="#334155" />
+            <XAxis dataKey="employee" tick={{ fontSize: 11, fill: '#94a3b8' }} angle={-25} textAnchor="end" height={60} stroke="#475569" />
+            <YAxis tick={{ fontSize: 12, fill: '#94a3b8' }} stroke="#475569" unit="%" />
+            <Tooltip
+              formatter={(v: number) => `${v}%`}
+              contentStyle={{ background: '#1e293b', border: '1px solid #334155', color: '#e2e8f0' }}
+              itemStyle={{ color: '#e2e8f0' }}
+              labelStyle={{ color: '#f1f5f9' }}
+              cursor={{ fill: 'rgba(99, 102, 241, 0.1)' }}
+            />
+            <Legend wrapperStyle={{ color: '#cbd5e1' }} />
             <Bar dataKey="utilisation" name="Utilisation %" fill={fill} />
           </BarChart>
         </ResponsiveContainer>
@@ -97,7 +103,7 @@ export default function FTEvsFreelancer({ rows }: Props) {
   const { fte, freelancer } = split(rows);
   return (
     <div className="flex flex-col gap-4 md:flex-row" data-tutorial-id="chart-fte-vs-freelancer">
-      <MiniChart title="FTE" data={fte} fill="#2563eb" />
+      <MiniChart title="FTE" data={fte} fill="#6366f1" />
       <MiniChart title="Freelancers" data={freelancer} fill="#a855f7" />
     </div>
   );
diff --git a/frontend/src/components/charts/MonthlyUtilisation.tsx b/frontend/src/components/charts/MonthlyUtilisation.tsx
index 7fdc181..a878677 100644
--- a/frontend/src/components/charts/MonthlyUtilisation.tsx
+++ b/frontend/src/components/charts/MonthlyUtilisation.tsx
@@ -68,8 +68,8 @@ export default function MonthlyUtilisation({ rows, showForecast, onPeriodClick }
   return (
     <div className="card" data-tutorial-id="chart-monthly-utilisation">
       <div className="mb-2 flex items-baseline justify-between">
-        <h3 className="text-sm font-semibold text-slate-700">Monthly Utilisation</h3>
-        <span className="text-xs text-slate-500">
+        <h3 className="text-sm font-semibold text-slate-200">Monthly Utilisation</h3>
+        <span className="text-xs text-slate-400">
           {onPeriodClick ? 'Click a bar for Hour Breakdown · ' : ''}
           {showForecast ? 'Forecast line visible' : 'Forecast line hidden'}
         </span>
@@ -77,16 +77,21 @@ export default function MonthlyUtilisation({ rows, showForecast, onPeriodClick }
       <div className="h-80 w-full">
         <ResponsiveContainer>
           <ComposedChart data={data} margin={{ top: 10, right: 20, left: 0, bottom: 0 }}>
-            <CartesianGrid strokeDasharray="3 3" stroke="#e2e8f0" />
-            <XAxis dataKey="label" tick={{ fontSize: 12 }} />
-            <YAxis tick={{ fontSize: 12 }} />
-            <Tooltip />
-            <Legend />
+            <CartesianGrid strokeDasharray="3 3" stroke="#334155" />
+            <XAxis dataKey="label" tick={{ fontSize: 12, fill: '#94a3b8' }} stroke="#475569" />
+            <YAxis tick={{ fontSize: 12, fill: '#94a3b8' }} stroke="#475569" />
+            <Tooltip
+              contentStyle={{ background: '#1e293b', border: '1px solid #334155', color: '#e2e8f0' }}
+              itemStyle={{ color: '#e2e8f0' }}
+              labelStyle={{ color: '#f1f5f9' }}
+              cursor={{ fill: 'rgba(99, 102, 241, 0.1)' }}
+            />
+            <Legend wrapperStyle={{ color: '#cbd5e1' }} />
             <Bar
               dataKey="activeBooked"
               name="Active Booked"
               stackId="booked"
-              fill="#2563eb"
+              fill="#6366f1"
               onClick={onBarClick}
               style={{ cursor: onPeriodClick ? 'pointer' : 'default' }}
             />
@@ -94,12 +99,12 @@ export default function MonthlyUtilisation({ rows, showForecast, onPeriodClick }
               dataKey="softBooked"
               name="Soft Booked"
               stackId="booked"
-              fill="#93c5fd"
+              fill="#a5b4fc"
               onClick={onBarClick}
               style={{ cursor: onPeriodClick ? 'pointer' : 'default' }}
             />
             <Bar dataKey="logged" name="Logged" fill="#0ea5e9" />
-            <Bar dataKey="available" name="Available" fill="#cbd5e1" />
+            <Bar dataKey="available" name="Available" fill="#475569" />
             {showForecast && (
               <Line
                 type="monotone"
diff --git a/frontend/src/components/charts/ProjectLoadPerPerson.tsx b/frontend/src/components/charts/ProjectLoadPerPerson.tsx
index 6e1ae2a..df7e253 100644
--- a/frontend/src/components/charts/ProjectLoadPerPerson.tsx
+++ b/frontend/src/components/charts/ProjectLoadPerPerson.tsx
@@ -19,10 +19,10 @@ interface Props {
 // "Other"; drop the legend entirely and rely on the tooltip.
 const TOP_N = 10;
 const PALETTE = [
-  '#2563eb', '#10b981', '#f59e0b', '#a855f7', '#ef4444',
+  '#6366f1', '#10b981', '#f59e0b', '#a855f7', '#ef4444',
   '#0ea5e9', '#84cc16', '#f97316', '#ec4899', '#14b8a6',
 ];
-const OTHER_FILL = '#94a3b8';
+const OTHER_FILL = '#475569';
 
 interface Row {
   employee: string;
@@ -68,19 +68,21 @@ export default function ProjectLoadPerPerson({ bookings }: Props) {
   return (
     <div className="card" data-tutorial-id="chart-project-load">
       <div className="mb-2 flex items-baseline justify-between">
-        <h3 className="text-sm font-semibold text-slate-700">Project Load per Person</h3>
-        <span className="text-xs text-slate-500">Top {TOP_N} projects by hours · hover bars for details</span>
+        <h3 className="text-sm font-semibold text-slate-200">Project Load per Person</h3>
+        <span className="text-xs text-slate-400">Top {TOP_N} projects by hours · hover bars for details</span>
       </div>
       <div className="h-96 w-full">
         <ResponsiveContainer>
           <BarChart data={data} margin={{ top: 10, right: 20, left: 0, bottom: 40 }}>
-            <CartesianGrid strokeDasharray="3 3" stroke="#e2e8f0" />
-            <XAxis dataKey="employee" tick={{ fontSize: 11 }} angle={-25} textAnchor="end" height={60} />
-            <YAxis tick={{ fontSize: 12 }} />
+            <CartesianGrid strokeDasharray="3 3" stroke="#334155" />
+            <XAxis dataKey="employee" tick={{ fontSize: 11, fill: '#94a3b8' }} angle={-25} textAnchor="end" height={60} stroke="#475569" />
+            <YAxis tick={{ fontSize: 12, fill: '#94a3b8' }} stroke="#475569" />
             <Tooltip
               wrapperStyle={{ maxWidth: 360 }}
-              itemStyle={{ fontSize: 12 }}
-              labelStyle={{ fontSize: 12, fontWeight: 600 }}
+              contentStyle={{ background: '#1e293b', border: '1px solid #334155', color: '#e2e8f0' }}
+              itemStyle={{ fontSize: 12, color: '#e2e8f0' }}
+              labelStyle={{ fontSize: 12, fontWeight: 600, color: '#f1f5f9' }}
+              cursor={{ fill: 'rgba(99, 102, 241, 0.1)' }}
               // Hide zero-value series in the tooltip to keep it readable.
               filterNull
             />
diff --git a/frontend/src/components/charts/WeeklyUtilisation.tsx b/frontend/src/components/charts/WeeklyUtilisation.tsx
index 7b328bb..319cb2e 100644
--- a/frontend/src/components/charts/WeeklyUtilisation.tsx
+++ b/frontend/src/components/charts/WeeklyUtilisation.tsx
@@ -62,24 +62,29 @@ export default function WeeklyUtilisation({ rows, onPeriodClick, period = 'week'
   return (
     <div className="card" data-tutorial-id="chart-weekly-utilisation">
       <div className="mb-2 flex items-baseline justify-between">
-        <h3 className="text-sm font-semibold text-slate-700">{title}</h3>
+        <h3 className="text-sm font-semibold text-slate-200">{title}</h3>
         {onPeriodClick && (
-          <span className="text-xs text-slate-500">Click a bar for Hour Breakdown</span>
+          <span className="text-xs text-slate-400">Click a bar for Hour Breakdown</span>
         )}
       </div>
       <div className="h-80 w-full">
         <ResponsiveContainer>
           <BarChart data={data} margin={{ top: 10, right: 20, left: 0, bottom: 0 }}>
-            <CartesianGrid strokeDasharray="3 3" stroke="#e2e8f0" />
-            <XAxis dataKey="label" tick={{ fontSize: 12 }} />
-            <YAxis tick={{ fontSize: 12 }} />
-            <Tooltip />
-            <Legend />
+            <CartesianGrid strokeDasharray="3 3" stroke="#334155" />
+            <XAxis dataKey="label" tick={{ fontSize: 12, fill: '#94a3b8' }} stroke="#475569" />
+            <YAxis tick={{ fontSize: 12, fill: '#94a3b8' }} stroke="#475569" />
+            <Tooltip
+              contentStyle={{ background: '#1e293b', border: '1px solid #334155', color: '#e2e8f0' }}
+              itemStyle={{ color: '#e2e8f0' }}
+              labelStyle={{ color: '#f1f5f9' }}
+              cursor={{ fill: 'rgba(99, 102, 241, 0.1)' }}
+            />
+            <Legend wrapperStyle={{ color: '#cbd5e1' }} />
             <Bar
               dataKey="activeBooked"
               name="Active Booked"
               stackId="booked"
-              fill="#2563eb"
+              fill="#6366f1"
               onClick={onBarClick}
               style={{ cursor: onPeriodClick ? 'pointer' : 'default' }}
             />
@@ -87,12 +92,12 @@ export default function WeeklyUtilisation({ rows, onPeriodClick, period = 'week'
               dataKey="softBooked"
               name="Soft Booked"
               stackId="booked"
-              fill="#93c5fd"
+              fill="#a5b4fc"
               onClick={onBarClick}
               style={{ cursor: onPeriodClick ? 'pointer' : 'default' }}
             />
             <Bar dataKey="logged" name="Logged" fill="#0ea5e9" />
-            <Bar dataKey="available" name="Available" fill="#cbd5e1" />
+            <Bar dataKey="available" name="Available" fill="#475569" />
           </BarChart>
         </ResponsiveContainer>
       </div>
diff --git a/frontend/src/index.css b/frontend/src/index.css
index 8fe3258..2bd87c8 100644
--- a/frontend/src/index.css
+++ b/frontend/src/index.css
@@ -4,7 +4,7 @@
 
 @layer base {
   :root {
-    color-scheme: light;
+    color-scheme: dark;
   }
 
   html,
@@ -14,8 +14,8 @@
   }
 
   body {
-    @apply bg-slate-50 text-slate-900 antialiased;
-    font-family: ui-sans-serif, system-ui, -apple-system, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
+    @apply bg-slate-950 text-slate-100 antialiased;
+    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
   }
 }
 
@@ -24,18 +24,18 @@
     @apply inline-flex items-center gap-2 rounded-md px-3 py-2 text-sm font-medium shadow-sm transition;
   }
   .btn-primary {
-    @apply btn bg-blue-600 text-white hover:bg-blue-700 disabled:opacity-50;
+    @apply btn bg-indigo-600 text-white hover:bg-indigo-500 disabled:opacity-50;
   }
   .btn-secondary {
-    @apply btn bg-white text-slate-700 ring-1 ring-slate-300 hover:bg-slate-50;
+    @apply btn bg-slate-700 border border-slate-600 text-slate-200 hover:bg-slate-600 disabled:opacity-50;
   }
   .card {
-    @apply rounded-lg bg-white p-4 shadow-sm ring-1 ring-slate-200;
+    @apply rounded-lg bg-slate-900 p-4 border border-slate-800 shadow-md;
   }
   .input {
-    @apply w-full rounded-md border border-slate-300 bg-white px-3 py-2 text-sm shadow-sm focus:border-blue-500 focus:outline-none focus:ring-1 focus:ring-blue-500;
+    @apply w-full rounded-md border border-slate-600 bg-slate-800 px-3 py-2 text-sm text-slate-200 focus:border-indigo-500 focus:outline-none focus:ring-1 focus:ring-indigo-500;
   }
   .label {
-    @apply mb-1 block text-xs font-medium uppercase tracking-wide text-slate-500;
+    @apply mb-1 block text-xs font-medium uppercase tracking-wide text-slate-400;
   }
 }
diff --git a/frontend/src/pages/Bookings.tsx b/frontend/src/pages/Bookings.tsx
index e360987..52559c9 100644
--- a/frontend/src/pages/Bookings.tsx
+++ b/frontend/src/pages/Bookings.tsx
@@ -99,7 +99,7 @@ export default function Bookings() {
       />
 
       <div className="flex flex-wrap items-center justify-between gap-2">
-        <div className="text-xs text-slate-500">
+        <div className="text-xs text-slate-400">
           {total.toLocaleString()} booking{total === 1 ? '' : 's'}
           {cachedAt && <span className="ml-2">— cached at {new Date(cachedAt).toLocaleString('en-GB')}</span>}
         </div>
@@ -129,7 +129,7 @@ export default function Bookings() {
 
       {!loading && !error && (
         <div className="card p-0" data-tutorial-id="bookings-table">
-          <div className="grid grid-cols-[1.6fr_1fr_1.2fr_2fr_1fr_0.8fr_1fr] gap-0 border-b border-slate-200 bg-slate-50 px-3 py-2 text-xs font-semibold uppercase tracking-wide text-slate-500">
+          <div className="grid grid-cols-[1.6fr_1fr_1.2fr_2fr_1fr_0.8fr_1fr] gap-0 border-b border-slate-700 bg-slate-800 px-3 py-2 text-xs font-semibold uppercase tracking-wide text-slate-300">
             <div>Resource</div>
             <div>Project #</div>
             <div>Project</div>
@@ -150,22 +150,22 @@ export default function Bookings() {
                   <div
                     key={b.id}
                     style={{ height: ROW_HEIGHT }}
-                    className="grid grid-cols-[1.6fr_1fr_1.2fr_2fr_1fr_0.8fr_1fr] items-center gap-0 border-b border-slate-100 px-3 text-sm text-slate-700"
+                    className="grid grid-cols-[1.6fr_1fr_1.2fr_2fr_1fr_0.8fr_1fr] items-center gap-0 border-b border-slate-800 px-3 text-sm text-slate-300 hover:bg-slate-800/50"
                   >
                     <div className="truncate" title={b.resourceName}>
                       {b.resourceName}
-                      {b.placeholder && <span className="ml-1 rounded bg-amber-100 px-1 text-[10px] text-amber-800">PLACEHOLDER</span>}
+                      {b.placeholder && <span className="ml-1 rounded bg-amber-900/40 border border-amber-500/50 px-1 text-[10px] text-amber-300">PLACEHOLDER</span>}
                     </div>
-                    <div className="truncate text-slate-500">{b.projectNumber}</div>
+                    <div className="truncate text-slate-400">{b.projectNumber}</div>
                     <div className="truncate" title={b.projectName}>{b.projectName}</div>
                     <div className="truncate" title={b.task}>{b.task}</div>
-                    <div className="truncate text-slate-500">{b.startDate} → {b.endDate}</div>
+                    <div className="truncate text-slate-400">{b.startDate} → {b.endDate}</div>
                     <div className="text-right tabular-nums">{(Number(b.totalHoursBooked) || 0).toFixed(1)}</div>
-                    <div className="truncate text-slate-500">{b.bookingStatus}</div>
+                    <div className="truncate text-slate-400">{b.bookingStatus}</div>
                   </div>
                 ))}
                 {total === 0 && (
-                  <div className="p-6 text-center text-sm text-slate-500">No bookings match the current filters.</div>
+                  <div className="p-6 text-center text-sm text-slate-400">No bookings match the current filters.</div>
                 )}
               </div>
             </div>
diff --git a/frontend/src/pages/Department.tsx b/frontend/src/pages/Department.tsx
index eb2f11a..7daaed3 100644
--- a/frontend/src/pages/Department.tsx
+++ b/frontend/src/pages/Department.tsx
@@ -86,8 +86,8 @@ export default function Department() {
   return (
     <div className="space-y-4">
       <section className="card">
-        <h2 className="text-base font-semibold text-slate-800">How to Use the Department Tab</h2>
-        <ol className="mt-2 list-decimal space-y-1 pl-5 text-sm text-slate-600">
+        <h2 className="text-base font-semibold text-slate-100">How to Use the Department Tab</h2>
+        <ol className="mt-2 list-decimal space-y-1 pl-5 text-sm text-slate-400">
           <li>Upload your timelog export (.xlsx or .csv). It stays in this session only.</li>
           <li>Pick a date preset (or custom range) and narrow by department or name.</li>
           <li>The charts below recompute automatically. Toggle the forecast line to compare scenarios.</li>
@@ -108,7 +108,7 @@ export default function Department() {
         userRoles={dimensions.userRoles}
       />
       {timelog.unrecognised.length > 0 && (
-        <div className="rounded-md border border-yellow-300 bg-yellow-50 p-2 text-xs text-yellow-900">
+        <div className="rounded-md border border-amber-500/50 bg-amber-900/30 p-2 text-xs text-amber-200">
           <strong>Time log is missing expected column{timelog.unrecognised.length > 1 ? 's' : ''}:</strong>{' '}
           {timelog.unrecognised.join(', ')} — charts may be incomplete.
         </div>
diff --git a/frontend/src/pages/Forecast.tsx b/frontend/src/pages/Forecast.tsx
index 39ed9c5..4d1fc25 100644
--- a/frontend/src/pages/Forecast.tsx
+++ b/frontend/src/pages/Forecast.tsx
@@ -29,10 +29,10 @@ function decisionIcon(decision: string) {
 
 function decisionStyle(decision: string): string {
   const d = decision.toLowerCase();
-  if (d.includes('overload')) return 'bg-red-50 text-red-800 ring-red-200';
-  if (d.includes('at capacity')) return 'bg-amber-50 text-amber-800 ring-amber-200';
-  if (d.includes('ok')) return 'bg-emerald-50 text-emerald-800 ring-emerald-200';
-  return 'bg-slate-50 text-slate-700 ring-slate-200';
+  if (d.includes('overload')) return 'bg-red-900/30 text-red-200 border-red-500/50';
+  if (d.includes('at capacity')) return 'bg-amber-900/30 text-amber-200 border-amber-500/50';
+  if (d.includes('ok')) return 'bg-emerald-900/30 text-emerald-200 border-emerald-500/50';
+  return 'bg-slate-800 text-slate-200 border-slate-700';
 }
 
 export default function ForecastPage() {
@@ -82,8 +82,8 @@ export default function ForecastPage() {
   return (
     <div className="space-y-4">
       <section className="card">
-        <h1 className="text-base font-semibold text-slate-800">Forecast — Next 4 weeks</h1>
-        <p className="mt-1 text-xs text-slate-500">
+        <h1 className="text-base font-semibold text-slate-100">Forecast — Next 4 weeks</h1>
+        <p className="mt-1 text-xs text-slate-400">
           Active asset count and exit rate per week, plus the department capacity baseline derived
           from your historical hours-per-asset and headcount. Upload a Project Summary file to
           improve accuracy.
@@ -91,7 +91,7 @@ export default function ForecastPage() {
       </section>
 
       {!timelog.hash && (
-        <div className="card text-sm text-slate-600">
+        <div className="card text-sm text-slate-300">
           Upload a time log on the Department tab to populate the forecast.
         </div>
       )}
@@ -102,7 +102,7 @@ export default function ForecastPage() {
       {!loading && !error && data && (
         <>
           <div
-            className={`card flex items-center gap-3 ring-1 ${decisionStyle(data.decision)}`}
+            className={`flex items-center gap-3 rounded-lg p-4 border shadow-md ${decisionStyle(data.decision)}`}
             data-tutorial-id="capacity-decision"
           >
             {decisionIcon(data.decision)}
@@ -128,28 +128,33 @@ export default function ForecastPage() {
 
           <div className="card" data-tutorial-id="forecast-canvas">
             <div className="mb-2 flex items-baseline justify-between">
-              <h3 className="text-sm font-semibold text-slate-700">Active + Exiting Assets</h3>
-              <span className="text-xs text-slate-500">
+              <h3 className="text-sm font-semibold text-slate-200">Active + Exiting Assets</h3>
+              <span className="text-xs text-slate-400">
                 Headcount baseline: {data.totals.baselineHeadcount}
               </span>
             </div>
             <div className="h-80 w-full">
               <ResponsiveContainer>
                 <ComposedChart data={chartData} margin={{ top: 10, right: 30, left: 0, bottom: 0 }}>
-                  <CartesianGrid strokeDasharray="3 3" stroke="#e2e8f0" />
-                  <XAxis dataKey="label" tick={{ fontSize: 12 }} />
-                  <YAxis yAxisId="left" tick={{ fontSize: 12 }} />
-                  <YAxis yAxisId="right" orientation="right" tick={{ fontSize: 12 }} unit="%" />
-                  <Tooltip />
-                  <Legend />
-                  <Bar yAxisId="left" dataKey="active" stackId="a" name="Active assets" fill="#2563eb" />
+                  <CartesianGrid strokeDasharray="3 3" stroke="#334155" />
+                  <XAxis dataKey="label" tick={{ fontSize: 12, fill: '#94a3b8' }} stroke="#475569" />
+                  <YAxis yAxisId="left" tick={{ fontSize: 12, fill: '#94a3b8' }} stroke="#475569" />
+                  <YAxis yAxisId="right" orientation="right" tick={{ fontSize: 12, fill: '#94a3b8' }} stroke="#475569" unit="%" />
+                  <Tooltip
+                    contentStyle={{ background: '#1e293b', border: '1px solid #334155', color: '#e2e8f0' }}
+                    itemStyle={{ color: '#e2e8f0' }}
+                    labelStyle={{ color: '#f1f5f9' }}
+                    cursor={{ fill: 'rgba(99, 102, 241, 0.1)' }}
+                  />
+                  <Legend wrapperStyle={{ color: '#cbd5e1' }} />
+                  <Bar yAxisId="left" dataKey="active" stackId="a" name="Active assets" fill="#6366f1" />
                   <Bar yAxisId="left" dataKey="exiting" stackId="a" name="Exiting assets" fill="#f59e0b" />
                   <Line
                     yAxisId="right"
                     type="monotone"
                     dataKey="exitRate"
                     name="Exit rate %"
-                    stroke="#dc2626"
+                    stroke="#f87171"
                     strokeWidth={2}
                     dot
                   />
@@ -169,11 +174,11 @@ export default function ForecastPage() {
           </div>
 
           <div className="card">
-            <h3 className="mb-2 text-sm font-semibold text-slate-700">Week-by-week breakdown</h3>
+            <h3 className="mb-2 text-sm font-semibold text-slate-200">Week-by-week breakdown</h3>
             <div className="overflow-x-auto">
               <table className="w-full text-sm">
                 <thead>
-                  <tr className="border-b border-slate-200 text-left text-xs uppercase tracking-wide text-slate-500">
+                  <tr className="border-b border-slate-700 text-left text-xs uppercase tracking-wide text-slate-400">
                     <th className="py-2 pr-2">Week</th>
                     <th className="py-2 pr-2">Starts</th>
                     <th className="py-2 pr-2 text-right">Active</th>
@@ -186,15 +191,15 @@ export default function ForecastPage() {
                 </thead>
                 <tbody>
                   {data.weeks.map((w) => (
-                    <tr key={w.weekStart} className="border-b border-slate-100">
-                      <td className="py-1.5 pr-2 font-medium text-slate-800">{w.weekLabel}</td>
-                      <td className="py-1.5 pr-2 text-slate-500">{w.weekStart}</td>
-                      <td className="py-1.5 pr-2 text-right tabular-nums">{w.activeAssets}</td>
-                      <td className="py-1.5 pr-2 text-right tabular-nums">{w.exitingAssets}</td>
-                      <td className="py-1.5 pr-2 text-right tabular-nums">{w.exitRatePct}%</td>
-                      <td className="py-1.5 pr-2 text-right tabular-nums">{w.weeklyThroughput}</td>
-                      <td className="py-1.5 pr-2 text-right tabular-nums">{w.deptCapacityAssetsPerWeek}</td>
-                      <td className="py-1.5 pr-2 text-right tabular-nums">{w.canTakeOn}</td>
+                    <tr key={w.weekStart} className="border-b border-slate-800">
+                      <td className="py-1.5 pr-2 font-medium text-slate-100">{w.weekLabel}</td>
+                      <td className="py-1.5 pr-2 text-slate-400">{w.weekStart}</td>
+                      <td className="py-1.5 pr-2 text-right tabular-nums text-slate-200">{w.activeAssets}</td>
+                      <td className="py-1.5 pr-2 text-right tabular-nums text-slate-200">{w.exitingAssets}</td>
+                      <td className="py-1.5 pr-2 text-right tabular-nums text-slate-200">{w.exitRatePct}%</td>
+                      <td className="py-1.5 pr-2 text-right tabular-nums text-slate-200">{w.weeklyThroughput}</td>
+                      <td className="py-1.5 pr-2 text-right tabular-nums text-slate-200">{w.deptCapacityAssetsPerWeek}</td>
+                      <td className="py-1.5 pr-2 text-right tabular-nums text-slate-200">{w.canTakeOn}</td>
                     </tr>
                   ))}
                 </tbody>
diff --git a/frontend/src/pages/Login.tsx b/frontend/src/pages/Login.tsx
index c16e732..cc3dbd3 100644
--- a/frontend/src/pages/Login.tsx
+++ b/frontend/src/pages/Login.tsx
@@ -42,18 +42,18 @@ export default function Login() {
   };
 
   return (
-    <div className="flex min-h-screen items-center justify-center bg-slate-100 px-4">
-      <div className="w-full max-w-sm rounded-lg bg-white p-6 shadow-md ring-1 ring-slate-200">
+    <div className="flex min-h-screen items-center justify-center bg-slate-950 px-4">
+      <div className="w-full max-w-sm rounded-lg bg-slate-900 p-6 shadow-md border border-slate-800">
         <div className="mb-6 text-center">
-          <div className="mx-auto mb-2 inline-flex h-10 w-10 items-center justify-center rounded-full bg-slate-900 text-white">
+          <div className="mx-auto mb-2 inline-flex h-10 w-10 items-center justify-center rounded-full bg-indigo-600 text-white">
             <LogIn className="h-5 w-5" aria-hidden />
           </div>
-          <h1 className="text-lg font-semibold text-slate-900">L&apos;Oréal Utilisation</h1>
-          <p className="text-xs text-slate-500">Sign in to continue</p>
+          <h1 className="text-lg font-semibold text-white">L&apos;Oréal Utilisation</h1>
+          <p className="text-xs text-slate-400">Sign in to continue</p>
         </div>
 
         {rateLimited && (
-          <div className="mb-3 rounded-md border border-amber-300 bg-amber-50 p-2 text-xs text-amber-900">
+          <div className="mb-3 rounded-md border border-amber-500/50 bg-amber-900/30 p-2 text-xs text-amber-200">
             Too many login attempts. Please wait a few minutes and try again.
           </div>
         )}
@@ -85,7 +85,7 @@ export default function Login() {
           </div>
 
           {fieldError && (
-            <div className="rounded-md bg-red-50 px-2 py-1 text-xs text-red-700">{fieldError}</div>
+            <div className="rounded-md border border-red-500/50 bg-red-900/30 px-2 py-1 text-xs text-red-300">{fieldError}</div>
           )}
 
           <button type="submit" disabled={submitting} className="btn-primary w-full justify-center">
diff --git a/frontend/src/pages/ProjectTypeSummary.tsx b/frontend/src/pages/ProjectTypeSummary.tsx
index 3ae73e6..7b22d87 100644
--- a/frontend/src/pages/ProjectTypeSummary.tsx
+++ b/frontend/src/pages/ProjectTypeSummary.tsx
@@ -84,15 +84,15 @@ export default function ProjectTypeSummaryPage() {
   return (
     <div className="space-y-4">
       <section className="card">
-        <h1 className="text-base font-semibold text-slate-800">Project Type Summary</h1>
-        <p className="mt-1 text-xs text-slate-500">
+        <h1 className="text-base font-semibold text-slate-100">Project Type Summary</h1>
+        <p className="mt-1 text-xs text-slate-400">
           Effort, duration and hour distribution per project type. Sort columns to find concentration
           risks and outliers.
         </p>
       </section>
 
       {!timelog.hash && (
-        <div className="card text-sm text-slate-600">
+        <div className="card text-sm text-slate-300">
           Upload a time log to compute project-type benchmarks.
         </div>
       )}
@@ -103,16 +103,21 @@ export default function ProjectTypeSummaryPage() {
       {!loading && !error && data && data.stats.length > 0 && (
         <>
           <div className="card">
-            <h3 className="mb-2 text-sm font-semibold text-slate-700">Hours / asset by type</h3>
+            <h3 className="mb-2 text-sm font-semibold text-slate-200">Hours / asset by type</h3>
             <div className="h-64 w-full">
               <ResponsiveContainer>
                 <ComposedChart data={chartData} margin={{ top: 10, right: 30, left: 0, bottom: 0 }}>
-                  <CartesianGrid strokeDasharray="3 3" stroke="#e2e8f0" />
-                  <XAxis dataKey="label" tick={{ fontSize: 11 }} angle={-15} textAnchor="end" height={60} />
-                  <YAxis yAxisId="left" tick={{ fontSize: 11 }} />
-                  <YAxis yAxisId="right" orientation="right" tick={{ fontSize: 11 }} />
-                  <Tooltip />
-                  <Legend />
+                  <CartesianGrid strokeDasharray="3 3" stroke="#334155" />
+                  <XAxis dataKey="label" tick={{ fontSize: 11, fill: '#94a3b8' }} angle={-15} textAnchor="end" height={60} stroke="#475569" />
+                  <YAxis yAxisId="left" tick={{ fontSize: 11, fill: '#94a3b8' }} stroke="#475569" />
+                  <YAxis yAxisId="right" orientation="right" tick={{ fontSize: 11, fill: '#94a3b8' }} stroke="#475569" />
+                  <Tooltip
+                    contentStyle={{ background: '#1e293b', border: '1px solid #334155', color: '#e2e8f0' }}
+                    itemStyle={{ color: '#e2e8f0' }}
+                    labelStyle={{ color: '#f1f5f9' }}
+                    cursor={{ fill: 'rgba(99, 102, 241, 0.1)' }}
+                  />
+                  <Legend wrapperStyle={{ color: '#cbd5e1' }} />
                   <Bar yAxisId="left" dataKey="hoursPerAsset" name="h/asset" fill="#6366f1" />
                   <Line
                     yAxisId="right"
@@ -128,14 +133,14 @@ export default function ProjectTypeSummaryPage() {
           </div>
 
           <div className="card" data-tutorial-id="project-type-table">
-            <h3 className="mb-2 text-sm font-semibold text-slate-700">
+            <h3 className="mb-2 text-sm font-semibold text-slate-200">
               {data.totals.totalTypes} types · {data.totals.totalProjects} projects ·{' '}
               {data.totals.totalHours}h
             </h3>
             <div className="overflow-x-auto">
               <table className="w-full text-sm">
                 <thead>
-                  <tr className="border-b border-slate-200 text-left text-xs uppercase tracking-wide text-slate-500">
+                  <tr className="border-b border-slate-700 text-left text-xs uppercase tracking-wide text-slate-400">
                     <Th k="projectType" l="Project type" sortKey={sortKey} sortDir={sortDir} onSort={handleSort} />
                     <Th k="projectCount" l="# projects" sortKey={sortKey} sortDir={sortDir} onSort={handleSort} right />
                     <Th k="totalHours" l="Total hours" sortKey={sortKey} sortDir={sortDir} onSort={handleSort} right />
@@ -148,15 +153,15 @@ export default function ProjectTypeSummaryPage() {
                 </thead>
                 <tbody>
                   {sortedStats.map((s) => (
-                    <tr key={s.projectType} className="border-b border-slate-100">
-                      <td className="py-1.5 pr-2 font-medium text-slate-800">{s.projectType}</td>
-                      <td className="py-1.5 pr-2 text-right tabular-nums">{s.projectCount}</td>
-                      <td className="py-1.5 pr-2 text-right tabular-nums">{s.totalHours}</td>
-                      <td className="py-1.5 pr-2 text-right tabular-nums">{s.totalAssets}</td>
-                      <td className="py-1.5 pr-2 text-right tabular-nums">{s.avgHoursPerAsset}</td>
-                      <td className="py-1.5 pr-2 text-right tabular-nums">{s.avgDurationDays}</td>
-                      <td className="py-1.5 pr-2 text-right tabular-nums">{s.concentrationPct}%</td>
-                      <td className="py-1.5 pr-2 text-xs text-slate-500">{s.autoInsight}</td>
+                    <tr key={s.projectType} className="border-b border-slate-800">
+                      <td className="py-1.5 pr-2 font-medium text-slate-100">{s.projectType}</td>
+                      <td className="py-1.5 pr-2 text-right tabular-nums text-slate-200">{s.projectCount}</td>
+                      <td className="py-1.5 pr-2 text-right tabular-nums text-slate-200">{s.totalHours}</td>
+                      <td className="py-1.5 pr-2 text-right tabular-nums text-slate-200">{s.totalAssets}</td>
+                      <td className="py-1.5 pr-2 text-right tabular-nums text-slate-200">{s.avgHoursPerAsset}</td>
+                      <td className="py-1.5 pr-2 text-right tabular-nums text-slate-200">{s.avgDurationDays}</td>
+                      <td className="py-1.5 pr-2 text-right tabular-nums text-slate-200">{s.concentrationPct}%</td>
+                      <td className="py-1.5 pr-2 text-xs text-slate-400">{s.autoInsight}</td>
                     </tr>
                   ))}
                 </tbody>
@@ -188,7 +193,7 @@ function Th({
   return (
     <th
       onClick={() => onSort(k)}
-      className={`cursor-pointer py-2 pr-2 hover:text-slate-700 select-none ${right ? 'text-right' : ''}`}
+      className={`cursor-pointer py-2 pr-2 hover:text-slate-200 select-none ${right ? 'text-right' : ''}`}
     >
       {l}
       {arrow}
diff --git a/frontend/src/pages/Resourcing.tsx b/frontend/src/pages/Resourcing.tsx
index 8001b44..4416d2d 100644
--- a/frontend/src/pages/Resourcing.tsx
+++ b/frontend/src/pages/Resourcing.tsx
@@ -128,9 +128,9 @@ export default function Resourcing() {
         />
         <div className="flex items-center gap-2">
           {selectedPeriod && (
-            <div className="text-sm text-slate-600">
-              Drilled into <strong>{selectedPeriod}</strong>{' '}
-              <button onClick={() => setSelectedPeriod(null)} className="ml-1 text-blue-600 hover:underline">
+            <div className="text-sm text-slate-300">
+              Drilled into <strong className="text-slate-100">{selectedPeriod}</strong>{' '}
+              <button onClick={() => setSelectedPeriod(null)} className="ml-1 text-indigo-400 hover:text-indigo-300 hover:underline">
                 clear
               </button>
             </div>
diff --git a/frontend/src/pages/TimeLogDetail.tsx b/frontend/src/pages/TimeLogDetail.tsx
index c6cc204..3c885b8 100644
--- a/frontend/src/pages/TimeLogDetail.tsx
+++ b/frontend/src/pages/TimeLogDetail.tsx
@@ -99,8 +99,8 @@ export default function TimeLogDetailPage() {
   return (
     <div className="space-y-4">
       <section className="card">
-        <h1 className="text-base font-semibold text-slate-800">Time Log Detail</h1>
-        <p className="mt-1 text-xs text-slate-500">
+        <h1 className="text-base font-semibold text-slate-100">Time Log Detail</h1>
+        <p className="mt-1 text-xs text-slate-400">
           Every parsed time entry. Server-side search and sort across the upload — the table below
           is virtualised so it stays smooth at 100k+ rows.
         </p>
@@ -117,7 +117,7 @@ export default function TimeLogDetailPage() {
             placeholder="Search name, role, project, brand…"
             className="input max-w-xs"
           />
-          <span className="ml-auto text-xs text-slate-500">
+          <span className="ml-auto text-xs text-slate-400">
             {total.toLocaleString()} entries · page {page} / {totalPages}
           </span>
           <button
@@ -144,13 +144,13 @@ export default function TimeLogDetailPage() {
         {!loading && !error && (
           <div className="overflow-x-auto">
             <div
-              className="grid border-b border-slate-200 bg-slate-50 px-2 py-2 text-[11px] font-semibold uppercase tracking-wide text-slate-500"
+              className="grid border-b border-slate-700 bg-slate-800 px-2 py-2 text-[11px] font-semibold uppercase tracking-wide text-slate-300"
               style={{ gridTemplateColumns: `repeat(${COLS.length}, minmax(0, 1fr))` }}
             >
               {COLS.map((c) => (
                 <div
                   key={String(c.key)}
-                  className={`cursor-pointer select-none ${c.numeric ? 'text-right' : ''}`}
+                  className={`cursor-pointer select-none hover:text-slate-100 ${c.numeric ? 'text-right' : ''}`}
                   onClick={() => handleSort(c.key)}
                 >
                   {c.label}
@@ -170,7 +170,7 @@ export default function TimeLogDetailPage() {
                     <div
                       key={`${row.date ?? ''}-${row.submitter ?? ''}-${row.projectNumber ?? ''}-${startIndex + i}`}
                       style={{ height: ROW_HEIGHT, gridTemplateColumns: `repeat(${COLS.length}, minmax(0, 1fr))` }}
-                      className="grid items-center border-b border-slate-100 px-2 text-xs text-slate-700 hover:bg-slate-50"
+                      className="grid items-center border-b border-slate-800 px-2 text-xs text-slate-300 hover:bg-slate-800/50"
                     >
                       {COLS.map((c) => {
                         const v = row[c.key];
@@ -187,7 +187,7 @@ export default function TimeLogDetailPage() {
                     </div>
                   ))}
                   {rows.length === 0 && (
-                    <div className="p-6 text-center text-sm text-slate-500">
+                    <div className="p-6 text-center text-sm text-slate-400">
                       {timelog.hash ? 'No rows match the current search.' : 'Upload a time log to see rows.'}
                     </div>
                   )}
diff --git a/frontend/src/pages/Tutorial.tsx b/frontend/src/pages/Tutorial.tsx
index 6dcb7d5..fbcecae 100644
--- a/frontend/src/pages/Tutorial.tsx
+++ b/frontend/src/pages/Tutorial.tsx
@@ -10,8 +10,8 @@ export default function Tutorial() {
   return (
     <div className="space-y-4">
       <section className="card">
-        <h1 className="text-lg font-semibold text-slate-900">Tutorial — Interactive Walkthrough</h1>
-        <p className="mt-1 text-sm text-slate-600">
+        <h1 className="text-lg font-semibold text-white">Tutorial — Interactive Walkthrough</h1>
+        <p className="mt-1 text-sm text-slate-400">
           A 9-step tour of the entire dashboard. The overlay only highlights elements that exist on
           the current page — start the tour, then navigate to other tabs to continue. The original
           video walkthrough has been retired.
@@ -27,11 +27,11 @@ export default function Tutorial() {
       </section>
 
       <div className="card">
-        <h2 className="text-sm font-semibold text-slate-800">Chapter list</h2>
-        <ol className="mt-2 list-decimal space-y-1 pl-5 text-sm text-slate-600">
+        <h2 className="text-sm font-semibold text-slate-100">Chapter list</h2>
+        <ol className="mt-2 list-decimal space-y-1 pl-5 text-sm text-slate-400">
           {globalSteps.map((step) => (
             <li key={step.selector}>
-              <strong className="text-slate-800">{step.title}:</strong> {step.description}
+              <strong className="text-slate-100">{step.title}:</strong> {step.description}
             </li>
           ))}
         </ol>