fix: hero CTAs invisible until scroll, seek animation skip, layout overhaul

- Remove data-reveal from hero h1/subtitle/mascot/cta-group/version-badge
  (critical above-fold content must never start hidden)
- Change IntersectionObserver rootMargin -150px to -30px, threshold 0.1 to 0.05
  (CTAs at ~530px were past the observer zone on laptops)
- Hero layout: align-items flex-start + padding-top 7.5rem for content at top
- Cards 62cqw to 70cqw, -3% offsets for dramatic overlap cascade
- Film animation: replace stick-figure walker with cinematic night scene
  (7 twinkling stars, glowing moon with drift, parallax mountains, firefly)
- Seek now restarts all film child animations via .demo-reset class toggle
  (was incorrectly resetting parent only — no visible jump)
- Add .demo-seek-sweep overlay + brightness flash during seek
- Video select: placeholder option ('Choose a video tab...') until story picks
- RATE 8 to 1 for realtime playback
- Version badge moved below download buttons
- All 15 locale files: add DEMO_SELECT_PLACEHOLDER key

website/locales/de.json

@@ -23,6 +23,7 @@
   "DEMO_CREATE_ROOM": "Raum erstellen",
   "DEMO_JOINED": "Raum beigetreten",
   "DEMO_TAB_SELECTED": "Tab ausgewählt",
+  "DEMO_SELECT_PLACEHOLDER": "Video-Tab wählen…",
   "ADD_TO_CHROME": "Zu Chrome hinzufügen",
   "ADD_TO_FIREFOX": "Zu Firefox hinzufügen",
   "COMPAT_HEADING": "Funktioniert auf deinen Lieblingsplattformen",

website/locales/en.json

@@ -23,6 +23,7 @@
   "DEMO_CREATE_ROOM": "Create Room",
   "DEMO_JOINED": "Room joined",
   "DEMO_TAB_SELECTED": "Tab selected",
+  "DEMO_SELECT_PLACEHOLDER": "Choose a video tab…",
   "ADD_TO_CHROME": "Add to Chrome",
   "ADD_TO_FIREFOX": "Add to Firefox",
   "COMPAT_HEADING": "Works on your favorite platforms",

website/locales/es.json

@@ -23,6 +23,7 @@
   "DEMO_CREATE_ROOM": "Crear sala",
   "DEMO_JOINED": "Conectado a la sala",
   "DEMO_TAB_SELECTED": "Pestaña seleccionada",
+  "DEMO_SELECT_PLACEHOLDER": "Elige una pestaña de video…",
   "ADD_TO_CHROME": "Añadir a Chrome",
   "ADD_TO_FIREFOX": "Añadir a Firefox",
   "COMPAT_HEADING": "Funciona en tus plataformas favoritas",

website/locales/fr.json

@@ -23,6 +23,7 @@
   "DEMO_CREATE_ROOM": "Créer un salon",
   "DEMO_JOINED": "Salon rejoint",
   "DEMO_TAB_SELECTED": "Onglet sélectionné",
+  "DEMO_SELECT_PLACEHOLDER": "Choisir un onglet vidéo…",
   "ADD_TO_CHROME": "Ajouter à Chrome",
   "ADD_TO_FIREFOX": "Ajouter à Firefox",
   "COMPAT_HEADING": "Fonctionne sur vos plateformes préférées",

website/locales/it.json

@@ -23,6 +23,7 @@
   "DEMO_CREATE_ROOM": "Crea stanza",
   "DEMO_JOINED": "Entrato nella stanza",
   "DEMO_TAB_SELECTED": "Scheda selezionata",
+  "DEMO_SELECT_PLACEHOLDER": "Scegli una scheda video…",
   "ADD_TO_CHROME": "Aggiungi a Chrome",
   "ADD_TO_FIREFOX": "Aggiungi a Firefox",
   "COMPAT_HEADING": "Compatibile con le tue piattaforme preferite",

website/locales/ja.json

@@ -23,6 +23,7 @@
   "DEMO_CREATE_ROOM": "ルームを作成",
   "DEMO_JOINED": "ルームに参加",
   "DEMO_TAB_SELECTED": "タブを選択済み",
+  "DEMO_SELECT_PLACEHOLDER": "動画タブを選ぶ…",
   "ADD_TO_CHROME": "Chromeに追加",
   "ADD_TO_FIREFOX": "Firefoxに追加",
   "COMPAT_HEADING": "お気に入りのプラットフォームで動作",

website/locales/ko.json

@@ -23,6 +23,7 @@
   "DEMO_CREATE_ROOM": "방 만들기",
   "DEMO_JOINED": "방 참여됨",
   "DEMO_TAB_SELECTED": "탭 선택됨",
+  "DEMO_SELECT_PLACEHOLDER": "동영상 탭 선택…",
   "ADD_TO_CHROME": "Chrome에 추가",
   "ADD_TO_FIREFOX": "Firefox에 추가",
   "COMPAT_HEADING": "가장 좋아하는 플랫폼에서 작동합니다",

website/locales/nl.json

@@ -23,6 +23,7 @@
   "DEMO_CREATE_ROOM": "Kamer aanmaken",
   "DEMO_JOINED": "In de kamer",
   "DEMO_TAB_SELECTED": "Tabblad geselecteerd",
+  "DEMO_SELECT_PLACEHOLDER": "Kies een videotabblad…",
   "ADD_TO_CHROME": "Toevoegen aan Chrome",
   "ADD_TO_FIREFOX": "Toevoegen aan Firefox",
   "COMPAT_HEADING": "Werkt op uw favoriete platforms",

website/locales/pl.json

@@ -23,6 +23,7 @@
   "DEMO_CREATE_ROOM": "Utwórz pokój",
   "DEMO_JOINED": "Dołączono do pokoju",
   "DEMO_TAB_SELECTED": "Karta wybrana",
+  "DEMO_SELECT_PLACEHOLDER": "Wybierz kartę wideo…",
   "ADD_TO_CHROME": "Dodaj do Chrome",
   "ADD_TO_FIREFOX": "Dodaj do Firefox",
   "COMPAT_HEADING": "Działa na Twoich ulubionych platformach",

website/locales/pt-BR.json

@@ -23,6 +23,7 @@
   "DEMO_CREATE_ROOM": "Criar sala",
   "DEMO_JOINED": "Entrou na sala",
   "DEMO_TAB_SELECTED": "Aba selecionada",
+  "DEMO_SELECT_PLACEHOLDER": "Escolha uma aba de vídeo…",
   "ADD_TO_CHROME": "Adicionar ao Chrome",
   "ADD_TO_FIREFOX": "Adicionar ao Firefox",
   "COMPAT_HEADING": "Funciona nas suas plataformas favoritas",

website/locales/pt.json

@@ -23,6 +23,7 @@
   "DEMO_CREATE_ROOM": "Criar sala",
   "DEMO_JOINED": "Entrou na sala",
   "DEMO_TAB_SELECTED": "Separador selecionado",
+  "DEMO_SELECT_PLACEHOLDER": "Escolha um separador de vídeo…",
   "ADD_TO_CHROME": "Adicionar ao Chrome",
   "ADD_TO_FIREFOX": "Adicionar ao Firefox",
   "COMPAT_HEADING": "Funciona nas suas plataformas favoritas",

website/locales/ru.json

@@ -23,6 +23,7 @@
   "DEMO_CREATE_ROOM": "Создать комнату",
   "DEMO_JOINED": "В комнате",
   "DEMO_TAB_SELECTED": "Вкладка выбрана",
+  "DEMO_SELECT_PLACEHOLDER": "Выберите вкладку с видео…",
   "ADD_TO_CHROME": "Установить в Chrome",
   "ADD_TO_FIREFOX": "Установить в Firefox",
   "COMPAT_HEADING": "Работает на ваших любимых платформах",

website/locales/tr.json

@@ -23,6 +23,7 @@
   "DEMO_CREATE_ROOM": "Oda oluştur",
   "DEMO_JOINED": "Odaya katıldı",
   "DEMO_TAB_SELECTED": "Sekme seçildi",
+  "DEMO_SELECT_PLACEHOLDER": "Bir video sekmesi seçin…",
   "ADD_TO_CHROME": "Chrome'a Ekle",
   "ADD_TO_FIREFOX": "Firefox'a Ekle",
   "COMPAT_HEADING": "En sevdiğiniz platformlarda çalışır",

website/locales/uk.json

@@ -23,6 +23,7 @@
   "DEMO_CREATE_ROOM": "Створити кімнату",
   "DEMO_JOINED": "У кімнаті",
   "DEMO_TAB_SELECTED": "Вкладку вибрано",
+  "DEMO_SELECT_PLACEHOLDER": "Оберіть вкладку з відео…",
   "ADD_TO_CHROME": "Додати до Chrome",
   "ADD_TO_FIREFOX": "Додати до Firefox",
   "COMPAT_HEADING": "Працює на ваших улюблених платформах",

website/locales/zh.json

@@ -23,6 +23,7 @@
   "DEMO_CREATE_ROOM": "创建房间",
   "DEMO_JOINED": "已加入房间",
   "DEMO_TAB_SELECTED": "已选择标签页",
+  "DEMO_SELECT_PLACEHOLDER": "选择视频标签页…",
   "ADD_TO_CHROME": "添加到Chrome",
   "ADD_TO_FIREFOX": "添加到Firefox",
   "COMPAT_HEADING": "适用于您最喜欢的平台",