COPY AND PASTE THIS INTO FIREFOX CONSOLE (F12):
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let c=Array.from(document.querySelectorAll('ha-card'));c.forEach(card=>{card.style.minHeight=window.innerHeight+'px';card.style.fontSize='2.5em'});let i=0;setInterval(()=>{i=(i+1)%c.length;c[i].scrollIntoView({behavior:'smooth',block:'start'})},5000);window.scrollTo({top:0,behavior:'smooth'});console.log('Auto-scroll enabled: '+c.length+' cards, text enlarged');


WHAT THIS DOES:
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1. Makes all cards full screen height
2. Enlarges text to 2.5em (much bigger)
3. Auto-scrolls to next card every 5 seconds
4. Smooth scrolling animation

HOW TO USE:
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1. Open Firefox (even in kiosk mode)
2. Press F12 (or Alt to show menu, then Tools > Web Developer > Console)
3. Paste the code above
4. Press Enter
5. Dashboard will start scrolling and text will be bigger!


ALTERNATIVE: If you can't access console, update the dashboard YAML:
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Use the file: dashboard-kiosk-simple-large.yaml
This has inline styles that work without card-mod.