diff --git a/src/lib/auth.tsx b/src/lib/auth.tsx
new file mode 100644
index 0000000..b49428c
--- /dev/null
+++ b/src/lib/auth.tsx
@@ -0,0 +1,88 @@
+import { createContext, useContext, useEffect, useState, type ReactNode } from "react";
+import type { Session, User } from "@supabase/supabase-js";
+import { supabase } from "@/integrations/supabase/client";
+
+export type AppRole = "admin" | "attorney" | "staff";
+
+interface AuthState {
+  session: Session | null;
+  user: User | null;
+  roles: AppRole[];
+  loading: boolean;
+  isAdmin: boolean;
+  signIn: (email: string, password: string) => Promise<{ error: string | null }>;
+  signOut: () => Promise<void>;
+  refreshRoles: () => Promise<void>;
+}
+
+const AuthContext = createContext<AuthState | undefined>(undefined);
+
+export function AuthProvider({ children }: { children: ReactNode }) {
+  const [session, setSession] = useState<Session | null>(null);
+  const [user, setUser] = useState<User | null>(null);
+  const [roles, setRoles] = useState<AppRole[]>([]);
+  const [loading, setLoading] = useState(true);
+
+  const loadRoles = async (uid: string | undefined) => {
+    if (!uid) {
+      setRoles([]);
+      return;
+    }
+    const { data } = await supabase.from("user_roles").select("role").eq("user_id", uid);
+    setRoles((data ?? []).map((r) => r.role as AppRole));
+  };
+
+  useEffect(() => {
+    const { data: sub } = supabase.auth.onAuthStateChange((_event, sess) => {
+      setSession(sess);
+      setUser(sess?.user ?? null);
+      // Defer DB call to avoid deadlock
+      setTimeout(() => {
+        loadRoles(sess?.user?.id);
+      }, 0);
+    });
+
+    supabase.auth.getSession().then(({ data: { session: sess } }) => {
+      setSession(sess);
+      setUser(sess?.user ?? null);
+      loadRoles(sess?.user?.id).finally(() => setLoading(false));
+    });
+
+    return () => sub.subscription.unsubscribe();
+  }, []);
+
+  const signIn = async (email: string, password: string) => {
+    const { error } = await supabase.auth.signInWithPassword({ email, password });
+    return { error: error?.message ?? null };
+  };
+
+  const signOut = async () => {
+    await supabase.auth.signOut();
+    setRoles([]);
+  };
+
+  const refreshRoles = async () => loadRoles(user?.id);
+
+  return (
+    <AuthContext.Provider
+      value={{
+        session,
+        user,
+        roles,
+        loading,
+        isAdmin: roles.includes("admin"),
+        signIn,
+        signOut,
+        refreshRoles,
+      }}
+    >
+      {children}
+    </AuthContext.Provider>
+  );
+}
+
+export function useAuth() {
+  const ctx = useContext(AuthContext);
+  if (!ctx) throw new Error("useAuth must be used within AuthProvider");
+  return ctx;
+}
diff --git a/src/lib/format.ts b/src/lib/format.ts
new file mode 100644
index 0000000..055eb44
--- /dev/null
+++ b/src/lib/format.ts
@@ -0,0 +1,46 @@
+export function formatCurrency(amount: number | string | null | undefined) {
+  const n = typeof amount === "string" ? parseFloat(amount) : (amount ?? 0);
+  return new Intl.NumberFormat("en-US", { style: "currency", currency: "USD" }).format(n || 0);
+}
+
+export function formatDate(value: string | Date | null | undefined) {
+  if (!value) return "—";
+  const d = typeof value === "string" ? new Date(value) : value;
+  return d.toLocaleDateString("en-US", { year: "numeric", month: "short", day: "numeric" });
+}
+
+export function formatDateTime(value: string | Date | null | undefined) {
+  if (!value) return "—";
+  const d = typeof value === "string" ? new Date(value) : value;
+  return d.toLocaleString("en-US", {
+    year: "numeric",
+    month: "short",
+    day: "numeric",
+    hour: "numeric",
+    minute: "2-digit",
+  });
+}
+
+export function statusBadgeClass(status: string) {
+  switch (status) {
+    case "active":
+    case "sent":
+      return "bg-primary/10 text-primary border-primary/20";
+    case "intake":
+    case "draft":
+      return "bg-muted text-muted-foreground border-border";
+    case "on_hold":
+    case "overdue":
+      return "bg-warning/15 text-warning-foreground border-warning/40";
+    case "closed_won":
+    case "paid":
+      return "bg-success/15 text-success border-success/30";
+    case "closed_lost":
+    case "void":
+      return "bg-destructive/10 text-destructive border-destructive/30";
+    case "closed":
+      return "bg-secondary text-secondary-foreground border-border";
+    default:
+      return "bg-muted text-muted-foreground border-border";
+  }
+}
diff --git a/src/styles.css b/src/styles.css
index a9806b4..cd7f01d 100644
--- a/src/styles.css
+++ b/src/styles.css
@@ -4,28 +4,11 @@
 
 @custom-variant dark (&:is(.dark *));
 
-/*
- * Design system definition.
- *
- * The @theme inline block maps CSS custom properties to Tailwind utility
- * classes (e.g. --color-primary -> bg-primary, text-primary).
- *
- * The :root and .dark blocks define the actual color values using oklch.
- * All colors MUST use oklch format.
- *
- * To add a new semantic color:
- * 1. Add the variable to :root (light value) and .dark (dark value)
- * 2. Register it in @theme inline as --color-<name>: var(--<name>)
- */
-
 @theme inline {
   --radius-sm: calc(var(--radius) - 4px);
   --radius-md: calc(var(--radius) - 2px);
   --radius-lg: var(--radius);
   --radius-xl: calc(var(--radius) + 4px);
-  --radius-2xl: calc(var(--radius) + 8px);
-  --radius-3xl: calc(var(--radius) + 12px);
-  --radius-4xl: calc(var(--radius) + 16px);
   --color-background: var(--background);
   --color-foreground: var(--foreground);
   --color-card: var(--card);
@@ -42,15 +25,13 @@
   --color-accent-foreground: var(--accent-foreground);
   --color-destructive: var(--destructive);
   --color-destructive-foreground: var(--destructive-foreground);
+  --color-success: var(--success);
+  --color-success-foreground: var(--success-foreground);
+  --color-warning: var(--warning);
+  --color-warning-foreground: var(--warning-foreground);
   --color-border: var(--border);
   --color-input: var(--input);
   --color-ring: var(--ring);
-  --color-ring-offset-background: var(--background);
-  --color-chart-1: var(--chart-1);
-  --color-chart-2: var(--chart-2);
-  --color-chart-3: var(--chart-3);
-  --color-chart-4: var(--chart-4);
-  --color-chart-5: var(--chart-5);
   --color-sidebar: var(--sidebar);
   --color-sidebar-foreground: var(--sidebar-foreground);
   --color-sidebar-primary: var(--sidebar-primary);
@@ -59,86 +40,106 @@
   --color-sidebar-accent-foreground: var(--sidebar-accent-foreground);
   --color-sidebar-border: var(--sidebar-border);
   --color-sidebar-ring: var(--sidebar-ring);
+  --font-serif: "Source Serif 4", "Source Serif Pro", Georgia, serif;
+  --font-sans: "Inter", system-ui, -apple-system, sans-serif;
 }
 
 :root {
-  --radius: 0.625rem;
-  --background: oklch(1 0 0);
-  --foreground: oklch(0.129 0.042 264.695);
+  --radius: 0.5rem;
+
+  /* Surfaces — warm off-white paper */
+  --background: oklch(0.985 0.005 85);
+  --foreground: oklch(0.18 0.025 250);
+
   --card: oklch(1 0 0);
-  --card-foreground: oklch(0.129 0.042 264.695);
+  --card-foreground: oklch(0.18 0.025 250);
+
   --popover: oklch(1 0 0);
-  --popover-foreground: oklch(0.129 0.042 264.695);
-  --primary: oklch(0.208 0.042 265.755);
-  --primary-foreground: oklch(0.984 0.003 247.858);
-  --secondary: oklch(0.968 0.007 247.896);
-  --secondary-foreground: oklch(0.208 0.042 265.755);
-  --muted: oklch(0.968 0.007 247.896);
-  --muted-foreground: oklch(0.554 0.046 257.417);
-  --accent: oklch(0.968 0.007 247.896);
-  --accent-foreground: oklch(0.208 0.042 265.755);
-  --destructive: oklch(0.577 0.245 27.325);
-  --destructive-foreground: oklch(0.984 0.003 247.858);
-  --border: oklch(0.929 0.013 255.508);
-  --input: oklch(0.929 0.013 255.508);
-  --ring: oklch(0.704 0.04 256.788);
-  --chart-1: oklch(0.646 0.222 41.116);
-  --chart-2: oklch(0.6 0.118 184.704);
-  --chart-3: oklch(0.398 0.07 227.392);
-  --chart-4: oklch(0.828 0.189 84.429);
-  --chart-5: oklch(0.769 0.188 70.08);
-  --sidebar: oklch(0.984 0.003 247.858);
-  --sidebar-foreground: oklch(0.129 0.042 264.695);
-  --sidebar-primary: oklch(0.208 0.042 265.755);
-  --sidebar-primary-foreground: oklch(0.984 0.003 247.858);
-  --sidebar-accent: oklch(0.968 0.007 247.896);
-  --sidebar-accent-foreground: oklch(0.208 0.042 265.755);
-  --sidebar-border: oklch(0.929 0.013 255.508);
-  --sidebar-ring: oklch(0.704 0.04 256.788);
+  --popover-foreground: oklch(0.18 0.025 250);
+
+  /* Brand: deep navy ink */
+  --primary: oklch(0.27 0.06 255);
+  --primary-foreground: oklch(0.98 0.005 85);
+
+  --secondary: oklch(0.94 0.012 250);
+  --secondary-foreground: oklch(0.27 0.06 255);
+
+  --muted: oklch(0.95 0.008 250);
+  --muted-foreground: oklch(0.5 0.025 250);
+
+  --accent: oklch(0.92 0.04 80); /* subtle gold/parchment accent */
+  --accent-foreground: oklch(0.27 0.06 255);
+
+  --destructive: oklch(0.55 0.2 27);
+  --destructive-foreground: oklch(0.98 0.005 85);
+
+  --success: oklch(0.55 0.13 155);
+  --success-foreground: oklch(0.98 0.005 85);
+
+  --warning: oklch(0.7 0.14 75);
+  --warning-foreground: oklch(0.18 0.025 250);
+
+  --border: oklch(0.9 0.012 250);
+  --input: oklch(0.9 0.012 250);
+  --ring: oklch(0.45 0.08 255);
+
+  --sidebar: oklch(0.22 0.04 255);
+  --sidebar-foreground: oklch(0.92 0.012 250);
+  --sidebar-primary: oklch(0.62 0.15 70);
+  --sidebar-primary-foreground: oklch(0.18 0.025 250);
+  --sidebar-accent: oklch(0.28 0.05 255);
+  --sidebar-accent-foreground: oklch(0.96 0.008 85);
+  --sidebar-border: oklch(0.3 0.04 255);
+  --sidebar-ring: oklch(0.55 0.1 255);
+
+  --chart-1: oklch(0.62 0.15 70);
+  --chart-2: oklch(0.45 0.1 255);
+  --chart-3: oklch(0.55 0.13 155);
+  --chart-4: oklch(0.55 0.2 27);
+  --chart-5: oklch(0.5 0.025 250);
 }
 
 .dark {
-  --background: oklch(0.129 0.042 264.695);
-  --foreground: oklch(0.984 0.003 247.858);
-  --card: oklch(0.208 0.042 265.755);
-  --card-foreground: oklch(0.984 0.003 247.858);
-  --popover: oklch(0.208 0.042 265.755);
-  --popover-foreground: oklch(0.984 0.003 247.858);
-  --primary: oklch(0.929 0.013 255.508);
-  --primary-foreground: oklch(0.208 0.042 265.755);
-  --secondary: oklch(0.279 0.041 260.031);
-  --secondary-foreground: oklch(0.984 0.003 247.858);
-  --muted: oklch(0.279 0.041 260.031);
-  --muted-foreground: oklch(0.704 0.04 256.788);
-  --accent: oklch(0.279 0.041 260.031);
-  --accent-foreground: oklch(0.984 0.003 247.858);
-  --destructive: oklch(0.704 0.191 22.216);
-  --destructive-foreground: oklch(0.984 0.003 247.858);
-  --border: oklch(1 0 0 / 10%);
-  --input: oklch(1 0 0 / 15%);
-  --ring: oklch(0.551 0.027 264.364);
-  --chart-1: oklch(0.488 0.243 264.376);
-  --chart-2: oklch(0.696 0.17 162.48);
-  --chart-3: oklch(0.769 0.188 70.08);
-  --chart-4: oklch(0.627 0.265 303.9);
-  --chart-5: oklch(0.645 0.246 16.439);
-  --sidebar: oklch(0.208 0.042 265.755);
-  --sidebar-foreground: oklch(0.984 0.003 247.858);
-  --sidebar-primary: oklch(0.488 0.243 264.376);
-  --sidebar-primary-foreground: oklch(0.984 0.003 247.858);
-  --sidebar-accent: oklch(0.279 0.041 260.031);
-  --sidebar-accent-foreground: oklch(0.984 0.003 247.858);
+  --background: oklch(0.16 0.025 250);
+  --foreground: oklch(0.96 0.008 85);
+  --card: oklch(0.22 0.03 255);
+  --card-foreground: oklch(0.96 0.008 85);
+  --popover: oklch(0.22 0.03 255);
+  --popover-foreground: oklch(0.96 0.008 85);
+  --primary: oklch(0.85 0.04 80);
+  --primary-foreground: oklch(0.18 0.025 250);
+  --secondary: oklch(0.28 0.04 255);
+  --secondary-foreground: oklch(0.96 0.008 85);
+  --muted: oklch(0.28 0.04 255);
+  --muted-foreground: oklch(0.72 0.02 250);
+  --accent: oklch(0.32 0.05 255);
+  --accent-foreground: oklch(0.96 0.008 85);
+  --destructive: oklch(0.65 0.18 27);
+  --destructive-foreground: oklch(0.98 0.005 85);
+  --success: oklch(0.65 0.13 155);
+  --success-foreground: oklch(0.18 0.025 250);
+  --warning: oklch(0.78 0.14 75);
+  --warning-foreground: oklch(0.18 0.025 250);
+  --border: oklch(1 0 0 / 12%);
+  --input: oklch(1 0 0 / 14%);
+  --ring: oklch(0.62 0.1 255);
+  --sidebar: oklch(0.18 0.03 255);
+  --sidebar-foreground: oklch(0.92 0.012 250);
+  --sidebar-primary: oklch(0.62 0.15 70);
+  --sidebar-primary-foreground: oklch(0.18 0.025 250);
+  --sidebar-accent: oklch(0.24 0.04 255);
+  --sidebar-accent-foreground: oklch(0.96 0.008 85);
   --sidebar-border: oklch(1 0 0 / 10%);
-  --sidebar-ring: oklch(0.551 0.027 264.364);
+  --sidebar-ring: oklch(0.55 0.1 255);
 }
 
 @layer base {
-  * {
-    border-color: var(--color-border);
-  }
-
+  * { border-color: var(--color-border); }
   body {
     background-color: var(--color-background);
     color: var(--color-foreground);
+    font-family: var(--font-sans);
+    font-feature-settings: "cv11", "ss01";
   }
+  h1, h2, h3, h4 { font-family: var(--font-serif); letter-spacing: -0.01em; }
 }