feat: Embed YouTube video on mobile in onboarding modal

website/src/components/onboarding-modal.js

@@ -72,7 +72,6 @@ function escapeHtml(str) {
 function buildModalContent() {
   const lang = i18n.currentLang()
   const videoId = YOUTUBE_VIDEOS[lang] || YOUTUBE_VIDEOS.en
-  const youtubeUrl = `https://youtube.com/shorts/${videoId}`
   const embedUrl = `https://www.youtube.com/embed/${videoId}`
   const baseUrl = import.meta.env.BASE_URL
 
@@ -111,9 +110,6 @@ function buildModalContent() {
       <div class="px-6 pb-4">
         <div class="flex flex-col sm:flex-row gap-6">
           <div class="sm:w-1/2 flex-shrink-0 flex items-center justify-center">
-            ${
-              window.matchMedia('(min-width: 640px)').matches
-                ? `
             <div class="rounded-xl overflow-hidden bg-black aspect-[9/16] max-h-[400px] w-full">
               <iframe
                 src="${embedUrl}"
@@ -124,21 +120,6 @@ function buildModalContent() {
                 allowfullscreen
               ></iframe>
             </div>
-            `
-                : `
-            <a
-              href="${youtubeUrl}"
-              target="_blank"
-              rel="noopener noreferrer"
-              class="flex items-center gap-2 text-[var(--color-primary)] hover:underline font-medium py-2"
-            >
-              <svg class="h-6 w-6" fill="currentColor" viewBox="0 0 24 24">
-                <path d="M23.498 6.186a3.016 3.016 0 00-2.122-2.136C19.505 3.545 12 3.545 12 3.545s-7.505 0-9.377.505A3.017 3.017 0 00.502 6.186C0 8.07 0 12 0 12s0 3.93.502 5.814a3.016 3.016 0 002.122 2.136c1.871.505 9.376.505 9.376.505s7.505 0 9.377-.505a3.015 3.015 0 002.122-2.136C24 15.93 24 12 24 12s0-3.93-.502-5.814zM9.545 15.568V8.432L15.818 12l-6.273 3.568z"/>
-              </svg>
-              ${watchVideo}
-            </a>
-            `
-            }
           </div>
 
           <div class="sm:w-1/2 flex flex-col gap-3 text-[var(--color-text)] text-sm leading-relaxed">

website/src/components/onboarding-modal.test.js

@@ -8,32 +8,17 @@ import {
 } from './onboarding-modal.js'
 
 describe('onboarding-modal', () => {
-  let originalMatchMedia
-
   beforeEach(() => {
     localStorage.clear()
     i18n.init()
     // Note: innerHTML usage here is in test code only, not production.
     // The test DOM is reset between tests and contains no user input.
     document.body.innerHTML = ''
-    // Mock matchMedia - default to desktop (min-width: 640px matches)
-    originalMatchMedia = window.matchMedia
-    window.matchMedia = (query) => ({
-      matches: query === '(min-width: 640px)',
-      media: query,
-      onchange: null,
-      addListener: () => {},
-      removeListener: () => {},
-      addEventListener: () => {},
-      removeEventListener: () => {},
-      dispatchEvent: () => false,
-    })
   })
 
   afterEach(() => {
     document.body.innerHTML = ''
     document.body.style.overflow = ''
-    window.matchMedia = originalMatchMedia
   })
 
   describe('shouldShowOnboarding', () => {
@@ -83,7 +68,7 @@ describe('onboarding-modal', () => {
       expect(modal.textContent).toContain('One word, and the AI gets the rest.')
     })
 
-    it('contains the YouTube embed for desktop', () => {
+    it('contains the YouTube embed', () => {
       createOnboardingModal()
       showOnboarding()
 
@@ -101,25 +86,13 @@ describe('onboarding-modal', () => {
       expect(iframe.src).toContain('youtube.com/embed/cp-qqiHU-MA')
     })
 
-    it('contains YouTube link on mobile instead of iframe', () => {
-      window.matchMedia = (query) => ({
-        matches: false,
-        media: query,
-        onchange: null,
-        addListener: () => {},
-        removeListener: () => {},
-        addEventListener: () => {},
-        removeEventListener: () => {},
-        dispatchEvent: () => false,
-      })
+    it('always embeds video iframe regardless of screen size', () => {
       createOnboardingModal()
       showOnboarding()
 
-      const link = document.querySelector('#onboarding-modal a[href*="youtube.com/shorts"]')
-      expect(link).toBeTruthy()
-      expect(link.getAttribute('target')).toBe('_blank')
       const iframe = document.querySelector('#onboarding-modal iframe')
-      expect(iframe).toBeNull()
+      expect(iframe).toBeTruthy()
+      expect(iframe.src).toContain('youtube.com/embed/')
     })
   })