diff --git a/src/pages/auth/signin.jsx b/src/pages/auth/signin.jsx
index 57331c1d6..25dbf2e7f 100644
--- a/src/pages/auth/signin.jsx
+++ b/src/pages/auth/signin.jsx
@@ -1,43 +1,161 @@
+import classNames from "classnames";
 import { getProviders, signIn } from "next-auth/react";
+import { useEffect } from "react";
+import { BiShieldQuarter } from "react-icons/bi";
+import { getSettings } from "utils/config/config";
+
+export default function SignIn({ providers, callbackUrl, settings }) {
+  const theme = settings?.theme || "dark";
+  const color = settings?.color || "slate";
+  const title = settings?.title || "Homepage";
+
+  let backgroundImage = "";
+  let opacity = settings?.backgroundOpacity ?? 0;
+  let backgroundBlur = false;
+  let backgroundSaturate = false;
+  let backgroundBrightness = false;
+
+  if (settings?.background) {
+    const bg = settings.background;
+    if (typeof bg === "object") {
+      backgroundImage = bg.image || "";
+      if (bg.opacity !== undefined) {
+        opacity = 1 - bg.opacity / 100;
+      }
+      backgroundBlur = bg.blur !== undefined;
+      backgroundSaturate = bg.saturate !== undefined;
+      backgroundBrightness = bg.brightness !== undefined;
+    } else {
+      backgroundImage = bg;
+    }
+  }
+
+  useEffect(() => {
+    const html = document.documentElement;
+    const body = document.body;
+
+    html.classList.remove("dark", "scheme-dark", "scheme-light");
+    html.classList.toggle("dark", theme === "dark");
+    html.classList.add(theme === "dark" ? "scheme-dark" : "scheme-light");
+
+    const desiredThemeClass = `theme-${color}`;
+    const themeClassesToRemove = Array.from(html.classList).filter(
+      (cls) => cls.startsWith("theme-") && cls !== desiredThemeClass,
+    );
+    if (themeClassesToRemove.length) {
+      html.classList.remove(...themeClassesToRemove);
+    }
+    if (!html.classList.contains(desiredThemeClass)) {
+      html.classList.add(desiredThemeClass);
+    }
+
+    body.style.backgroundImage = "";
+    body.style.backgroundColor = "";
+    body.style.backgroundAttachment = "";
+  }, [color, theme]);
 
-export default function SignIn({ providers, callbackUrl }) {
   if (!providers || Object.keys(providers).length === 0) {
     return (
-      <main className="flex h-screen items-center justify-center">
-        <div className="p-6 text-center">
-          <h1 className="text-xl font-semibold">Authentication not configured</h1>
-          <p className="mt-2 text-sm text-gray-600">OIDC is disabled or missing required environment variables.</p>
-        </div>
-      </main>
+      <>
+        {backgroundImage && (
+          <div
+            id="background"
+            aria-hidden="true"
+            style={{
+              backgroundImage: `linear-gradient(rgb(var(--bg-color) / ${opacity}), rgb(var(--bg-color) / ${opacity})), url('${backgroundImage}')`,
+            }}
+          />
+        )}
+        <main
+          className={classNames(
+            "relative flex min-h-screen items-center justify-center px-6 py-12",
+            backgroundBlur &&
+              `backdrop-blur${settings?.background?.blur?.length ? `-${settings.background.blur}` : ""}`,
+            backgroundSaturate && `backdrop-saturate-${settings.background.saturate}`,
+            backgroundBrightness && `backdrop-brightness-${settings.background.brightness}`,
+          )}
+        >
+          <div className="relative w-full max-w-xl overflow-hidden rounded-3xl border border-white/40 bg-white/80 p-10 text-center shadow-2xl shadow-black/10 dark:border-white/10 dark:bg-slate-900/70">
+            <div
+              aria-hidden="true"
+              className="pointer-events-none absolute inset-x-0 top-0 h-24 bg-gradient-to-r from-theme-500/20 via-theme-500/5 to-transparent"
+            />
+            <div className="mx-auto flex h-12 w-12 items-center justify-center rounded-2xl bg-theme-500/15 text-theme-600 dark:text-theme-300">
+              <BiShieldQuarter className="h-6 w-6" />
+            </div>
+            <h1 className="mt-6 text-2xl font-semibold text-gray-900 dark:text-slate-100">
+              Authentication not configured
+            </h1>
+            <p className="mt-3 text-sm text-gray-600 dark:text-slate-400">OIDC is disabled or misconfigured.</p>
+          </div>
+        </main>
+      </>
     );
   }
 
   return (
-    <main className="flex h-screen items-center justify-center">
-      <div className="rounded-lg border border-gray-200 bg-white p-8 shadow-md">
-        <h1 className="text-xl font-semibold text-gray-900">Sign in</h1>
-        <p className="mt-2 text-sm text-gray-600">Continue with your identity provider.</p>
-        <div className="mt-4 space-y-3">
-          {Object.values(providers).map((provider) => (
-            <button
-              key={provider.id}
-              type="button"
-              onClick={() => signIn(provider.id, { callbackUrl: callbackUrl || "/" })}
-              className="w-full rounded-md bg-gray-900 px-4 py-2 text-sm font-medium text-white hover:bg-gray-800"
-            >
-              Sign in with {provider.name}
-            </button>
-          ))}
+    <>
+      {backgroundImage && (
+        <div
+          id="background"
+          aria-hidden="true"
+          style={{
+            backgroundImage: `linear-gradient(rgb(var(--bg-color) / ${opacity}), rgb(var(--bg-color) / ${opacity})), url('${backgroundImage}')`,
+          }}
+        />
+      )}
+      <main className="relative flex min-h-screen items-center justify-center px-6 py-12">
+        <div
+          className={classNames(
+            "relative w-full max-w-4xl overflow-hidden rounded-3xl border border-white/50 bg-white/80 shadow-2xl shadow-black/10 backdrop-blur-xl dark:border-white/10 dark:bg-slate-950/70",
+            backgroundBlur &&
+              `backdrop-blur${settings?.background?.blur?.length ? `-${settings.background.blur}` : ""}`,
+            backgroundSaturate && `backdrop-saturate-${settings.background.saturate}`,
+            backgroundBrightness && `backdrop-brightness-${settings.background.brightness}`,
+          )}
+        >
+          <div className="pointer-events-none absolute -left-24 -top-20 h-64 w-64 rounded-full bg-theme-500/20 blur-3xl" />
+          <div className="pointer-events-none absolute -bottom-24 right-0 h-72 w-72 rounded-full bg-theme-500/10 blur-3xl" />
+          <div className="grid gap-10 px-8 py-12 md:grid-cols-[1.2fr_1fr] md:px-12">
+            <section className="flex flex-col justify-between">
+              <div>
+                <div className="inline-flex items-center gap-2 rounded-full border border-theme-500/30 bg-theme-500/10 px-3 py-1 text-xs font-semibold uppercase tracking-[0.2em] text-theme-600 dark:text-theme-300">
+                  Login Required
+                </div>
+                <h1 className="mt-6 text-3xl font-semibold text-gray-900 dark:text-slate-100">{title}</h1>
+                <p className="mt-3 text-sm text-gray-600 dark:text-slate-300">Login to view your dashboard.</p>
+              </div>
+            </section>
+
+            <section className="flex flex-col justify-center gap-6">
+              <div className="rounded-2xl border border-white/60 bg-white/70 p-6 shadow-lg shadow-black/5 dark:border-white/10 dark:bg-slate-900/70">
+                <h2 className="text-lg font-semibold text-gray-900 dark:text-slate-100">Sign in</h2>
+                <div className="mt-6 space-y-3">
+                  {Object.values(providers).map((provider) => (
+                    <button
+                      key={provider.id}
+                      type="button"
+                      onClick={() => signIn(provider.id, { callbackUrl: callbackUrl || "/" })}
+                      className="group w-full rounded-xl bg-theme-600 px-4 py-3 text-sm font-semibold text-white shadow-lg shadow-theme-600/20 transition hover:-translate-y-0.5 hover:bg-theme-500 focus-visible:outline focus-visible:outline-2 focus-visible:outline-offset-2 focus-visible:outline-theme-500"
+                    >
+                      <span className="flex items-center justify-center gap-2">Login via {provider.name} &rarr;</span>
+                    </button>
+                  ))}
+                </div>
+              </div>
+            </section>
+          </div>
         </div>
-      </div>
-    </main>
+      </main>
+    </>
   );
 }
 
 export async function getServerSideProps(context) {
   const providers = await getProviders();
   const callbackUrl = context?.query?.callbackUrl ?? "/";
+  const settings = getSettings();
   return {
-    props: { providers, callbackUrl },
+    props: { providers, callbackUrl, settings },
   };
 }