diff --git a/index.html b/index.html
index ce01362..4c281de 100644
--- a/index.html
+++ b/index.html
@@ -1 +1,208 @@
-hello
+<!doctype html>
+<html lang="en">
+  <head>
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1" />
+    <title>vibegif.lol</title>
+    <meta
+      name="description"
+      content="AI generated GIFs with BYOK OpenRouter. Minimal kawaii line doodles."
+    />
+
+    <script src="https://cdn.tailwindcss.com"></script>
+    <script>
+      tailwind.config = {
+        theme: {
+          extend: {
+            fontFamily: {
+              sans: ["Inter", "ui-sans-serif", "system-ui", "sans-serif"],
+            },
+          },
+        },
+      };
+    </script>
+
+    <link rel="stylesheet" href="./assets/css/styles.css" />
+
+    <script defer src="https://unpkg.com/lucide@latest"></script>
+    <script defer src="https://cdn.jsdelivr.net/npm/gif.js@0.2.0/dist/gif.js"></script>
+    <script defer src="https://cdn.jsdelivr.net/npm/alpinejs@3.x.x/dist/cdn.min.js"></script>
+    <script type="module" src="./assets/js/app.js"></script>
+  </head>
+
+  <body class="bg-gray-50 text-gray-900" x-data="vibeGifApp()" x-init="init()">
+    <div class="min-h-screen">
+      <header class="border-b border-gray-200 bg-white/90 backdrop-blur">
+        <div class="mx-auto flex max-w-6xl items-center justify-between px-4 py-3">
+          <button
+            class="inline-flex items-center justify-center rounded-lg border border-gray-200 p-2 text-gray-600 hover:bg-gray-100"
+            @click="openSettings()"
+            title="Account settings"
+          >
+            <i data-lucide="panel-left" class="h-5 w-5"></i>
+          </button>
+
+          <div class="text-lg font-semibold tracking-tight">vibegif.lol</div>
+
+          <div class="text-xs text-gray-500">
+            <span x-show="hasApiKey" x-cloak>BYOK connected</span>
+            <span x-show="!hasApiKey" x-cloak>No API key</span>
+          </div>
+        </div>
+      </header>
+
+      <main class="mx-auto grid max-w-6xl gap-6 px-4 py-6 lg:grid-cols-2">
+        <!-- Controls -->
+        <section class="card p-5">
+          <h1 class="mb-1 text-xl font-semibold">Generate a vibe GIF</h1>
+          <p class="mb-5 text-sm text-gray-600">
+            Use a very simple prompt like: <code class="chip">rolling cat</code>
+          </p>
+
+          <div x-show="!hasApiKey" x-cloak class="mb-4 rounded-lg border border-amber-200 bg-amber-50 p-3 text-sm text-amber-800">
+            OpenRouter API key is required.
+            <button class="ml-1 underline" @click="openSettings()">Add it in Account Settings</button>.
+          </div>
+
+          <div class="grid gap-4 sm:grid-cols-2">
+            <label class="field">
+              <span class="label">Model</span>
+              <select class="input" x-model="model">
+                <template x-for="m in modelOptions" :key="m.id">
+                  <option :value="m.id" x-text="m.label"></option>
+                </template>
+              </select>
+            </label>
+
+            <label class="field">
+              <span class="label">Image size</span>
+              <select class="input" x-model="imageSize">
+                <template x-for="s in imageSizeOptions" :key="s">
+                  <option :value="s" x-text="s"></option>
+                </template>
+              </select>
+            </label>
+
+            <label class="field">
+              <span class="label">Aspect ratio</span>
+              <select class="input" x-model="aspectRatio">
+                <template x-for="r in aspectRatioOptions" :key="r">
+                  <option :value="r" x-text="r"></option>
+                </template>
+              </select>
+            </label>
+
+            <label class="field">
+              <span class="label">Frames</span>
+              <input class="input" type="number" min="2" max="24" step="1" x-model.number="frameCount" />
+            </label>
+
+            <label class="field">
+              <span class="label">Framerate (fps)</span>
+              <input class="input" type="number" min="1" max="24" step="1" x-model.number="fps" />
+            </label>
+          </div>
+
+          <label class="field mt-4">
+            <span class="label">Prompt</span>
+            <input
+              class="input"
+              type="text"
+              x-model.trim="userPrompt"
+              placeholder="rolling cat"
+              maxlength="120"
+            />
+            <span class="hint">Keep it short/simple for better frame continuity.</span>
+          </label>
+
+          <label class="field mt-4">
+            <span class="label">Master Prompt (locked style)</span>
+            <textarea class="input min-h-[74px]" readonly x-model="masterPrompt"></textarea>
+          </label>
+
+          <div class="mt-5 flex items-center gap-3">
+            <button
+              class="inline-flex items-center justify-center rounded-lg bg-gray-900 px-4 py-2 text-sm font-medium text-white hover:bg-black disabled:cursor-not-allowed disabled:opacity-50"
+              :disabled="!canGenerate"
+              @click="generateGif()"
+            >
+              <span x-show="!isGenerating">Generate GIF</span>
+              <span x-show="isGenerating" x-cloak>Generating…</span>
+            </button>
+
+            <span class="text-sm text-gray-600" x-text="progressText"></span>
+          </div>
+
+          <p x-show="errorText" x-cloak class="mt-3 rounded-lg border border-red-200 bg-red-50 p-3 text-sm text-red-700" x-text="errorText"></p>
+        </section>
+
+        <!-- Output -->
+        <section class="card p-5">
+          <h2 class="mb-3 text-lg font-semibold">Output</h2>
+
+          <div x-show="frames.length === 0" class="rounded-lg border border-dashed border-gray-300 p-8 text-center text-sm text-gray-500">
+            Your generated frames will appear here.
+          </div>
+
+          <div x-show="frames.length > 0" x-cloak>
+            <p class="mb-2 text-sm text-gray-600">
+              Frames (<span x-text="frames.length"></span>)
+            </p>
+            <div class="grid max-h-72 grid-cols-2 gap-2 overflow-auto sm:grid-cols-3">
+              <template x-for="(f, idx) in frames" :key="idx">
+                <figure class="rounded-lg border border-gray-200 bg-white p-1">
+                  <img :src="f" alt="" class="h-24 w-full rounded object-contain bg-white" loading="lazy" />
+                  <figcaption class="mt-1 text-center text-[11px] text-gray-500">Frame <span x-text="idx + 1"></span></figcaption>
+                </figure>
+              </template>
+            </div>
+          </div>
+
+          <div x-show="gifUrl" x-cloak class="mt-5 border-t border-gray-200 pt-4">
+            <p class="mb-2 text-sm text-gray-600">GIF preview</p>
+            <img :src="gifUrl" alt="Generated gif" class="max-h-80 w-full rounded-lg border border-gray-200 bg-white object-contain" />
+            <button
+              class="mt-3 inline-flex items-center justify-center rounded-lg border border-gray-300 px-4 py-2 text-sm font-medium text-gray-800 hover:bg-gray-100"
+              @click="downloadGif()"
+            >
+              Download GIF
+            </button>
+          </div>
+        </section>
+      </main>
+    </div>
+
+    <!-- Account Settings Modal -->
+    <div
+      x-show="showSettings"
+      x-cloak
+      class="fixed inset-0 z-50 flex items-center justify-center bg-black/30 p-4"
+      @click.self="closeSettings()"
+    >
+      <div class="w-full max-w-md rounded-2xl border border-gray-200 bg-white p-5 shadow-xl">
+        <div class="mb-3 flex items-center gap-2">
+          <i data-lucide="key-round" class="h-4 w-4 text-gray-500"></i>
+          <h3 class="text-base font-semibold">Account Settings</h3>
+        </div>
+
+        <label class="field">
+          <span class="label">OpenRouter API key</span>
+          <input
+            class="input"
+            type="password"
+            x-model.trim="apiKeyInput"
+            placeholder="sk-or-v1-..."
+            autocomplete="off"
+          />
+          <span class="hint">Stored in localStorage on this browser only.</span>
+        </label>
+
+        <div class="mt-4 flex items-center justify-end gap-2">
+          <button class="rounded-lg border border-gray-300 px-3 py-2 text-sm hover:bg-gray-100" @click="clearApiKey()">Clear</button>
+          <button class="rounded-lg border border-gray-300 px-3 py-2 text-sm hover:bg-gray-100" @click="closeSettings()">Cancel</button>
+          <button class="rounded-lg bg-gray-900 px-3 py-2 text-sm font-medium text-white hover:bg-black" @click="saveApiKey()">Save</button>
+        </div>
+      </div>
+    </div>
+  </body>
+</html>
