diff --git a/public/images/games_logo_dark.svg b/public/images/games_logo_dark.svg
new file mode 100644
index 0000000..0b71d4f
--- /dev/null
+++ b/public/images/games_logo_dark.svg
@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<svg viewBox="0 0 200 60" xmlns="http://www.w3.org/2000/svg">
+ <defs>
+  <linearGradient id="b" y2="100%">
+   <stop stop-color="#6366f1" offset="0"/>
+   <stop stop-color="#7c3aed" offset=".5"/>
+   <stop stop-color="#8b5cf6" offset="1"/>
+  </linearGradient>
+ </defs>
+ <g transform="matrix(.06 0 0 .06 8 10)">
+  <path d="M447.303 128.681c-.427-1.259-.875-3.264-1.408-5.525-3.52-14.315-6.827-27.84-19.904-32.832l-62.08-23.616a38.942 38.942 0 0 0-36.139 4.48l-3.84 3.435c-3.115 3.563-7.339 8.021-10.347 10.88H199.197c-2.539-2.667-5.931-6.592-8.768-10.112l-4.437-4.16c-10.624-7.424-24.149-9.131-36.117-4.523L87.73 90.324c-13.013 4.949-16.277 18.325-19.755 32.512-.533 2.155-.981 4.117-.811 4.117 0 0 .021 0 .043-.021C46.045 168.66-54.606 379.902 39.623 442.26c13.483 8.917 31.424 7.509 43.691-3.456l73.856-66.219c6.507-5.845 14.784-9.067 23.275-9.067h152.853c8.491 0 16.747 3.221 23.275 9.067l73.856 66.219c6.955 6.229 15.616 9.408 24.277 9.408a34.389 34.389 0 0 0 19.883-6.293c83.157-58.347 8.234-239.425-27.286-313.238z" fill="url(#b)"/>
+  <rect x="107" y="200" width="106" height="36" rx="20" fill="#fff"/>
+  <rect x="143" y="164" width="36" height="106" rx="20" fill="#fff"/>
+  <circle cx="341.47" cy="170.84" r="21.333" fill="#fff"/>
+  <circle cx="298.8" cy="213.5" r="21.333" fill="#fff"/>
+  <circle cx="341.47" cy="256.17" r="21.333" fill="#fff"/>
+  <circle cx="384.14" cy="213.5" r="21.333" fill="#fff"/>
+ </g>
+ <text x="50" y="25" fill="#f9fafb" font-family="Arial, sans-serif" font-size="18" font-weight="bold">Superfun games</text>
+ <text x="50" y="42" fill="#9ca3af" font-family="Arial, sans-serif" font-size="10" letter-spacing="2">Unblocked games</text>
+</svg>
diff --git a/src/components/fullscreen-button.astro b/src/components/fullscreen-button.astro
index a3f6985..9f9cd62 100644
--- a/src/components/fullscreen-button.astro
+++ b/src/components/fullscreen-button.astro
@@ -10,7 +10,7 @@ const { targetId } = Astro.props;
   type="button"
   data-fullscreen-for={targetId}
   aria-live="polite"
-  class="rounded-lg border border-gray-300 bg-white px-4 py-1.5 text-sm font-medium text-gray-700 shadow-sm hover:bg-gray-100 focus-visible:outline-2 focus-visible:outline-offset-2 focus-visible:outline-blue-600"
+  class="rounded-lg border border-gray-300 bg-white px-4 py-1.5 text-sm font-medium text-gray-700 shadow-sm hover:bg-gray-100 focus-visible:outline-2 focus-visible:outline-offset-2 focus-visible:outline-blue-600 dark:border-neutral-700 dark:bg-neutral-900 dark:text-neutral-200 dark:hover:bg-neutral-800"
 >
   ⛶ Full screen
 </button>
diff --git a/src/components/gametile.astro b/src/components/gametile.astro
index 8043e9f..ab57d2f 100644
--- a/src/components/gametile.astro
+++ b/src/components/gametile.astro
@@ -18,5 +18,5 @@ const altText = `${Game} unblocked - play online free`;
     decoding="async"
     class="aspect-[3/2] h-auto w-full max-w-[300px] rounded-xl transition-transform duration-300 hover:scale-105 hover:shadow-lg active:scale-95"
   />
-  <p class="text-gray-800 transition-colors hover:text-black">{Game}</p>
+  <p class="text-gray-800 dark:text-neutral-200 transition-colors hover:text-black dark:hover:text-white">{Game}</p>
 </a>
diff --git a/src/layout/layout.astro b/src/layout/layout.astro
index 847728d..1379827 100644
--- a/src/layout/layout.astro
+++ b/src/layout/layout.astro
@@ -67,7 +67,7 @@ const moreGames = (() => {
     <title>{gameTitle}</title>
     <meta name="description" content={gameDescription} />
     <meta name="robots" content="index, follow, max-image-preview:large" />
-    <meta name="theme-color" content="#ffffff" />
+    <meta name="theme-color" id="theme-color" content="#ffffff" />
     <link rel="canonical" href={pageUrl} />
 
     {
@@ -226,20 +226,46 @@ const moreGames = (() => {
     <script is:inline defer src="/_vercel/speed-insights/script.js"></script>
     <link href="/pagefind/pagefind-component-ui.css" rel="stylesheet" />
     <script src="/pagefind/pagefind-component-ui.js" type="module" is:inline></script>
+    <script is:inline>
+      // ponytail: class toggle beats media query — persists user choice
+      try {
+        var t = localStorage.getItem("theme");
+        var dark = t === "dark" || (!t && matchMedia("(prefers-color-scheme: dark)").matches);
+        if (dark) document.documentElement.classList.add("dark");
+        var m = document.getElementById("theme-color");
+        if (m) m.setAttribute("content", dark ? "#0a0a0a" : "#ffffff");
+      } catch {}
+    </script>
   </head>
-  <body>
+  <body class="bg-white text-gray-900 dark:bg-neutral-950 dark:text-neutral-100">
     <nav class="flex items-center justify-between">
       <a href="/">
         <img
           src="/images/games_logo_light.svg"
           alt="Superfun Games - Unblocked Games Home"
           width="300"
-          class="m-5"
+          class="m-5 block dark:hidden"
+        />
+        <img
+          src="/images/games_logo_dark.svg"
+          alt="Superfun Games - Unblocked Games Home"
+          width="300"
+          class="m-5 hidden dark:block"
         />
       </a>
       <div class="mr-5 flex gap-4 text-sm items-center">
-        <a href="/" class="hover:text-black text-gray-800 transition-colors">Home</a>
-        <a href="/dmca" class="hover:text-black text-gray-800 transition-colors">DMCA</a>
+        <a href="/" class="hover:text-black text-gray-800 dark:text-neutral-200 dark:hover:text-white transition-colors">Home</a>
+        <a href="/dmca" class="hover:text-black text-gray-800 dark:text-neutral-200 dark:hover:text-white transition-colors">DMCA</a>
+        <button
+          type="button"
+          id="theme-toggle"
+          aria-label="Switch to dark theme"
+          aria-pressed="false"
+          class="rounded-lg border border-gray-300 bg-white px-2 py-1 dark:border-neutral-700 dark:bg-neutral-900 hover:bg-gray-100 dark:hover:bg-neutral-800 transition-colors"
+        >
+          <svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="text-gray-700 dark:hidden"><path d="M12 3a6 6 0 0 0 9 9 9 9 0 1 1-9-9Z"/></svg>
+          <svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="text-neutral-200 hidden dark:block"><circle cx="12" cy="12" r="4"/><path d="M12 2v2"/><path d="M12 20v2"/><path d="m4.93 4.93 1.41 1.41"/><path d="m17.66 17.66 1.41 1.41"/><path d="M2 12h2"/><path d="M20 12h2"/><path d="m6.34 17.66-1.41 1.41"/><path d="m19.07 4.93-1.41 1.41"/></svg>
+        </button>
         <pagefind-searchbox></pagefind-searchbox>
       </div>
     </nav>
@@ -251,10 +277,10 @@ const moreGames = (() => {
             Play {Game} Unblocked on Chromebook
           </h1>
           <div class="py-2">
-            <p class="text-sm text-gray-500 mb-1 line-clamp-3">
+            <p class="text-sm text-gray-500 dark:text-neutral-400 mb-1 line-clamp-3">
               {gameDescription}
             </p>
-            <p class="text-xs text-gray-400 font-medium">
+            <p class="text-xs text-gray-400 dark:text-neutral-500 font-medium">
               ✓ {isFlash
                 ? "No Flash plugin required — works on school Chromebooks via Ruffle emulator"
                 : "Works on school Chromebooks — no downloads needed"}
@@ -268,8 +294,8 @@ const moreGames = (() => {
     {Game && !isHome && (
       <div class="mx-auto max-w-[1200px] px-6 pt-2">
         <!-- More Games cross-linking (dynamically generated) -->
-        <nav aria-label="More unblocked games" class="border-t border-gray-200 mt-4 py-4">
-          <h2 class="text-sm font-semibold mb-2 text-gray-700">More Unblocked Games</h2>
+        <nav aria-label="More unblocked games" class="border-t border-gray-200 dark:border-neutral-800 mt-4 py-4">
+          <h2 class="text-sm font-semibold mb-2 text-gray-700 dark:text-neutral-300">More Unblocked Games</h2>
           <div class="grid grid-cols-[repeat(auto-fill,minmax(min(100%,280px),1fr))] gap-[10px]">
             {moreGames.map((s) => (
               <Gametile Game={gamesMap[s].title} Path={`/games/${s}`} Image={gamesMap[s].image} />
@@ -280,13 +306,36 @@ const moreGames = (() => {
     )}
 
     <footer>
-      <p class="ml-6 mb-4 text-sm text-gray-600">
+      <p class="ml-6 mb-4 text-sm text-gray-600 dark:text-neutral-400">
         All games sourced from <a
-          class="hover:underline underline-offset-2 text-blue-600"
+          class="hover:underline underline-offset-2 text-blue-600 dark:text-blue-400"
           href="https://archive.org">Internet Archive</a
-        > · <a class="hover:underline underline-offset-2 text-blue-600" href="/about">About</a>
+        > · <a class="hover:underline underline-offset-2 text-blue-600 dark:text-blue-400" href="/about">About</a>
       </p>
     </footer>
+    <script is:inline>
+      // ponytail: icons swap via dark: classes, JS only flips the class
+      (function () {
+        function sync() {
+          var dark = document.documentElement.classList.contains("dark");
+          var m = document.getElementById("theme-color");
+          if (m) m.setAttribute("content", dark ? "#0a0a0a" : "#ffffff");
+          var b = document.getElementById("theme-toggle");
+          if (b) {
+            b.setAttribute("aria-pressed", dark ? "true" : "false");
+            b.setAttribute("aria-label", dark ? "Switch to light theme" : "Switch to dark theme");
+          }
+        }
+        document.addEventListener("click", function (e) {
+          var b = e.target && e.target.closest ? e.target.closest("#theme-toggle") : null;
+          if (!b) return;
+          var dark = document.documentElement.classList.toggle("dark");
+          try { localStorage.setItem("theme", dark ? "dark" : "light"); } catch {}
+          sync();
+        });
+        sync();
+      })();
+    </script>
     {
       seo && slug && (
         <script define:vars={{ slug, title: seo.title, image: seo.image }} is:inline>
diff --git a/src/pages/404.astro b/src/pages/404.astro
index a6e52e8..5fb0ec3 100644
--- a/src/pages/404.astro
+++ b/src/pages/404.astro
@@ -6,9 +6,9 @@ const pageTitle = "Page Not Found - Superfun Games";
 <Layout pageTitle={pageTitle}>
   <div class="mx-auto max-w-[600px] p-6 text-center">
     <h1 class="text-2xl font-bold mb-2">Game not found</h1>
-    <p class="mb-4 text-gray-600">
+    <p class="mb-4 text-gray-600 dark:text-neutral-400">
       That page doesn't exist. Head back to the homepage to pick a game.
     </p>
-    <a href="/" class="text-blue-600 hover:underline">Back to all games</a>
+    <a href="/" class="text-blue-600 dark:text-blue-400 hover:underline">Back to all games</a>
   </div>
 </Layout>
diff --git a/src/pages/about.astro b/src/pages/about.astro
index f828264..1ee7d17 100644
--- a/src/pages/about.astro
+++ b/src/pages/about.astro
@@ -6,16 +6,16 @@ const pageTitle = "About - Superfun Games Unblocked Games";
 <Layout pageTitle={pageTitle}>
   <div class="mx-auto max-w-[800px] p-6">
     <h1 data-pagefind-body class="text-2xl font-bold mb-4">About Superfun Games</h1>
-    <p data-pagefind-body class="mb-4 text-sm text-gray-700">
+    <p data-pagefind-body class="mb-4 text-sm text-gray-700 dark:text-neutral-300">
       Superfun Games is a free collection of classic Flash games and browser
       games that run without Flash Player. Flash games run through the Ruffle
       emulator (WebAssembly) directly in modern browsers including Chrome on
       school Chromebooks. No downloads or plugins needed.
     </p>
-    <p class="mb-4 text-sm text-gray-700">
+    <p class="mb-4 text-sm text-gray-700 dark:text-neutral-300">
       All games are sourced from the Internet Archive. The site is a static
       Astro build maintained at
-      <a class="text-blue-600 hover:underline" href="https://github.com/noahgsolomon/unblocked-games">github.com/noahgsolomon/unblocked-games</a>.
+      <a class="text-blue-600 dark:text-blue-400 hover:underline" href="https://github.com/noahgsolomon/unblocked-games">github.com/noahgsolomon/unblocked-games</a>.
     </p>
   </div>
 </Layout>
diff --git a/src/pages/dmca.astro b/src/pages/dmca.astro
index 15608e0..740ce5f 100644
--- a/src/pages/dmca.astro
+++ b/src/pages/dmca.astro
@@ -4,7 +4,7 @@ const pageTitle = "DMCA Notice - Superfun Games Unblocked Games";
 ---
 
 <Layout pageTitle={pageTitle}>
-  <div class="mx-auto max-w-[800px] p-6">
+  <div class="mx-auto max-w-[800px] p-6 dark:text-neutral-300">
     <h1 class="text-2xl font-bold mb-4">DMCA Notice</h1>
     <p class="mb-4">
       If you believe that any copyright infringement exists on the Site, please
diff --git a/src/pages/games/[slug].astro b/src/pages/games/[slug].astro
index e5513c8..70faa51 100644
--- a/src/pages/games/[slug].astro
+++ b/src/pages/games/[slug].astro
@@ -67,13 +67,13 @@ const seo = gamesMap[slug];
         </div>
       </div>
     ) : (
-      <p class="p-6 text-center text-gray-600">Game not available.</p>
+      <p class="p-6 text-center text-gray-600 dark:text-neutral-400">Game not available.</p>
     )
   }
   {seo.guide && (
     <section class="mx-auto max-w-[1200px] px-6 pb-6">
-      <h2 class="text-sm font-semibold mb-1 text-gray-700">How to play {seo.title}</h2>
-      <p data-pagefind-body class="text-sm text-gray-600">{seo.guide}</p>
+      <h2 class="text-sm font-semibold mb-1 text-gray-700 dark:text-neutral-300">How to play {seo.title}</h2>
+      <p data-pagefind-body class="text-sm text-gray-600 dark:text-neutral-400">{seo.guide}</p>
     </section>
   )}
 </Layout>
diff --git a/src/pages/index.astro b/src/pages/index.astro
index 79c80fe..6f407a7 100644
--- a/src/pages/index.astro
+++ b/src/pages/index.astro
@@ -13,26 +13,26 @@ const popularGames = defaultGames.slice(0, POPULAR_COUNT);
   <h1 data-pagefind-body class="text-2xl font-bold mb-2 m-5">
     Play Unblocked Games on Your School Chromebook - Working 2026
   </h1>
-  <p class="text-sm text-gray-600 mb-4 m-5">
+  <p class="text-sm text-gray-600 dark:text-neutral-400 mb-4 m-5">
     Play classic Flash games and browser games on your school Chromebook without
     needing any plugins or downloads. All games run directly in your Chrome
     browser via Ruffle emulation - no Flash Player required. Relive your
     favorite nostalgic games like <a
       href="/games/happy-wheels"
-      class="text-blue-600 hover:underline">Happy Wheels</a
-    >, <a href="/games/plants-vs-zombies" class="text-blue-600 hover:underline"
+      class="text-blue-600 dark:text-blue-400 hover:underline">Happy Wheels</a
+    >, <a href="/games/plants-vs-zombies" class="text-blue-600 dark:text-blue-400 hover:underline"
       >Plants vs Zombies</a
     >, <a
       href="/games/strike-force-heroes"
-      class="text-blue-600 hover:underline">Strike Force Heroes</a
+      class="text-blue-600 dark:text-blue-400 hover:underline">Strike Force Heroes</a
     >, and more. Updated and working in 2026.
   </p>
 
   <div class="flex flex-wrap gap-2 m-5 mb-4 text-sm">
-    <h2 class="font-semibold text-gray-700">Popular:</h2>
+    <h2 class="font-semibold text-gray-700 dark:text-neutral-300">Popular:</h2>
     {
       popularGames.map((slug) => (
-        <a href={"/games/" + slug} class="text-blue-600 hover:underline"
+        <a href={"/games/" + slug} class="text-blue-600 dark:text-blue-400 hover:underline"
           >{gamesMap[slug].title}</a
         >
       ))
@@ -46,7 +46,7 @@ const popularGames = defaultGames.slice(0, POPULAR_COUNT);
       class="grid grid-cols-[repeat(auto-fill,minmax(min(100%,280px),1fr))] gap-[10px]"
     >
     </div>
-    <hr class="mx-5 my-4 border-gray-400" />
+    <hr class="mx-5 my-4 border-gray-400 dark:border-neutral-700" />
   </section>
   <script is:inline define:vars={{ valid: defaultGames }}>
     (function () {
@@ -70,7 +70,7 @@ const popularGames = defaultGames.slice(0, POPULAR_COUNT);
           img.className =
             "aspect-[3/2] h-auto w-full max-w-[300px] rounded-xl transition-transform duration-300 hover:scale-105 hover:shadow-lg active:scale-95";
           var p = document.createElement("p");
-          p.className = "text-gray-800 transition-colors hover:text-black";
+          p.className = "text-gray-800 dark:text-neutral-200 transition-colors hover:text-black dark:hover:text-white";
           p.textContent = g.t;
           a.appendChild(img);
           a.appendChild(p);
diff --git a/src/styles/styles.css b/src/styles/styles.css
index d6b854f..e3c0ff6 100644
--- a/src/styles/styles.css
+++ b/src/styles/styles.css
@@ -1,5 +1,7 @@
 @import "tailwindcss";
 
+@custom-variant dark (&:where(.dark, .dark *));
+
 /* flash.astro — dynamic states injected by JS */
 .flash-loading {
   background: #f0f0f0;
@@ -9,6 +11,11 @@
   padding: 40px;
 }
 
+.dark .flash-loading {
+  background: #1f2937;
+  color: #d1d5db;
+}
+
 .flash-error {
   background: #fff3f3;
   border: 1px solid #ffcccc;
@@ -17,3 +24,37 @@
   font-size: 1rem;
   padding: 40px 24px;
 }
+
+.dark .flash-error {
+  background: #450a0a;
+  border-color: #7f1d1d;
+  color: #fca5a5;
+}
+
+/* pagefind component UI has no dark theme — override its vars ourselves */
+/* ponytail: html.dark beats pagefind's :root regardless of stylesheet order */
+html.dark {
+  color-scheme: dark;
+  --pf-text: #f5f5f5;
+  --pf-text-secondary: #d4d4d4;
+  --pf-text-muted: #a3a3a3;
+  --pf-background: #171717;
+  --pf-border: #404040;
+  --pf-border-focus: #737373;
+  --pf-skeleton: #262626;
+  --pf-skeleton-shine: #404040;
+  --pf-hover: #262626;
+  --pf-mark: #f5f5f5;
+  --pf-scroll-shadow: rgba(0, 0, 0, 0.4);
+  --pf-shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.4);
+  --pf-shadow-md: 0 4px 12px rgba(0, 0, 0, 0.5);
+  --pf-shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.6);
+  --pf-error-bg: #450a0a;
+  --pf-error-border: #7f1d1d;
+  --pf-error-text: #fca5a5;
+  --pf-error-text-secondary: #f87171;
+  --pf-outline-focus: #60a5fa;
+  --pf-modal-backdrop: rgba(0, 0, 0, 0.7);
+  --pf-icon-search: url("data:image/svg+xml,%3Csvg width='18' height='18' viewBox='0 0 18 18' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M12.7549 11.255H11.9649L11.6849 10.985C12.6649 9.845 13.2549 8.365 13.2549 6.755C13.2549 3.165 10.3449 0.255005 6.75488 0.255005C3.16488 0.255005 0.254883 3.165 0.254883 6.755C0.254883 10.345 3.16488 13.255 6.75488 13.255C8.36488 13.255 9.84488 12.665 10.9849 11.685L11.2549 11.965V12.755L16.2549 17.745L17.7449 16.255L12.7549 11.255ZM6.75488 11.255C4.26488 11.255 2.25488 9.245 2.25488 6.755C2.25488 4.26501 4.26488 2.255 6.75488 2.255C9.24488 2.255 11.2549 4.26501 11.2549 6.755C11.2549 9.245 9.24488 11.255 6.75488 11.255Z' fill='%23f5f5f5'/%3E%3C/svg%3E%0A");
+  --pf-icon-arrow: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 10 6'%3E%3Cpath d='M1 1l4 4 4-4' stroke='%23f5f5f5' stroke-width='1.5' fill='none' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
+}