1️⃣ Single Iframe Depth 1

Element nằm trong 1 level iframe. Click button và verify text changes.
📍 iframe-level-1

2️⃣ Nested Iframe Depth 2

Element nằm trong iframe lồng 2 cấp. Navigate through layers.
📍 iframe-outer → iframe-inner

3️⃣ Triple Nested Depth 3

Ultimate challenge: 3 levels deep! 🌀
📍 frame-a → frame-b → frame-c

4️⃣ Form in Iframe

Fill form fields inside iframe, then submit.
📍 iframe-form

5️⃣ Dynamic Iframe

Iframe content loads dynamically. Wait for it!
📍 iframe-dynamic

6️⃣ Cross-Frame Communication

Send message from parent to iframe and back. Test postMessage API.
📤 Parent Window

Response: Waiting...

📍 iframe-messenger

7️⃣ Multiple Sibling Iframes

3 sibling iframes. Click buttons in correct order.
Frame Alpha
Frame Beta
Frame Gamma

Click buttons in order: Alpha → Beta → Gamma

📋 Iframe Log

[Ready] 🖼️ IFRAME INCEPTION loaded!