diff --git a/html/futureuse/index.html b/html/futureuse/index.html
new file mode 100644
index 0000000..6bf6b30
--- /dev/null
+++ b/html/futureuse/index.html
@@ -0,0 +1,51 @@
+<!doctype html>
+<html lang="en">
+<head>
+  <meta charset="utf-8">
+  <meta name="viewport" content="width=device-width, initial-scale=1">
+  <meta name="color-scheme" content="light dark">
+  <title>Reserved for future use</title>
+  <style>
+    :root {
+      --bg: #fff;
+      --fg: #111;
+      --border: #ddd;
+    }
+    @media (prefers-color-scheme: dark) {
+      :root {
+        --bg: #111;
+        --fg: #f5f5f5;
+        --border: #333;
+      }
+    }
+    * { box-sizing: border-box; }
+    html, body { margin: 0; min-height: 100%; }
+    body {
+      display: grid;
+      place-items: center;
+      padding: 24px;
+      background: var(--bg);
+      color: var(--fg);
+      font: 16px/1.5 Arial, Helvetica, sans-serif;
+    }
+    main {
+      width: 100%;
+      max-width: 720px;
+      padding: 32px 24px;
+      border: 1px solid var(--border);
+      border-radius: 12px;
+      text-align: center;
+    }
+    h1 {
+      margin: 0;
+      font-size: clamp(1.5rem, 4vw, 2.25rem);
+      font-weight: 600;
+    }
+  </style>
+</head>
+<body>
+  <main>
+    <h1>Reserved for future use</h1>
+  </main>
+</body>
+</html>
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