feat: integrate Tailwind CSS with custom theme and animations

Added Tailwind CSS and tw-animate-css imports to globals.css. Introduced a custom dark variant and an extensive @theme inline block with CSS variables for colors, radii, and animations. Included keyframes for shimmer-slide, spin-around, gradient, shine, and background-position-spin to enable consistent theming and dynamic UI effects across the application.

components/sections/escrow-banner.tsx

@@ -0,0 +1,40 @@
+"use client";
+
+import { useTranslations } from "next-intl";
+import { Button } from "@/components/ui/button";
+import { Shield, Coins } from "lucide-react";
+
+export function EscrowBanner() {
+  const t = useTranslations("home.escrow");
+
+  return (
+    <section className="py-8 bg-gradient-to-r from-green-500/10 via-blue-500/10 to-green-500/10 border-b border-green-500/20">
+      <div className="container">
+        <div className="flex items-center justify-between">
+          <div className="flex items-center gap-4">
+            <div className="w-12 h-12 bg-green-500/20 rounded-full flex items-center justify-center">
+              <Shield className="w-6 h-6 text-green-500" />
+            </div>
+            <div>
+              <h2 className="text-xl font-bold text-foreground">
+                {t("title")}
+              </h2>
+              <p className="text-muted-foreground">{t("description")}</p>
+            </div>
+          </div>
+
+          <div className="flex items-center gap-4">
+            <div className="text-right">
+              <p className="text-sm text-muted-foreground">Escrow Balance</p>
+              <p className="text-lg font-bold text-foreground">🪙 0 gp</p>
+            </div>
+            <Button className="bg-green-600 hover:bg-green-700 text-white">
+              <Coins className="w-4 h-4 mr-2" />
+              {t("deposit")}
+            </Button>
+          </div>
+        </div>
+      </div>
+    </section>
+  );
+}