Cleans up the new-doc forms.

src/components/documents/treasure/NewTreasureForm.tsx

@@ -3,6 +3,8 @@
 import { useState } from "react";
 import type { CampaignId, Treasure } from "@/lib/types";
 import { pb } from "@/lib/pocketbase";
+import { BaseForm } from "@/components/form/BaseForm";
+import { SingleLineInput } from "@/components/form/SingleLineInput";
 
 /**
  * Renders a form to add a new treasure. Calls onCreate with the new treasure document.
@@ -42,29 +44,18 @@ export const NewTreasureForm = ({
   }
 
   return (
-    <form
-      className="flex flex-col items-center gap-2 mt-4 w-full"
+    <BaseForm
+      title="Create new treasure"
+      isLoading={adding || !newTreasure.trim()}
       onSubmit={handleSubmit}
-    >
-      <div>
-        <input
-          type="text"
-          className="flex-1 px-3 py-2 rounded bg-slate-800 text-slate-100 border border-slate-700 focus:outline-none focus:ring-2 focus:ring-violet-500"
-          placeholder="Add a new treasure..."
+      error={error}
+      content={
+        <SingleLineInput
           value={newTreasure}
-          onChange={(e) => setNewTreasure(e.target.value)}
-          disabled={adding}
-          aria-label="Add new treasure"
+          onChange={setNewTreasure}
+          placeholder="Treasure description"
         />
-      </div>
-      {error && <div className="text-red-400 mt-2 text-sm">{error}</div>}
-      <button
-        type="submit"
-        className="px-4 py-2 rounded bg-emerald-600 hover:bg-emerald-700 text-white font-semibold transition-colors disabled:opacity-60"
-        disabled={adding || !newTreasure.trim()}
-      >
-        {adding ? "Adding..." : "Add Treasure"}
-      </button>
-    </form>
+      }
+    />
   );
 };