- Mobile nav: uses <details>/<summary> for toggle, no useState, no useEffect
- Nav dropdown: uses <details>/<summary>, no useState, no event listeners
- Desktop: separate div with desktop nav items (hidden on mobile)
- Mobile: hamburger dropdown with absolute positioned panel
- CSS: removed ::after pseudo-element with transform, replaced hover
with background-color only, added details[open] CSS rules
- No backdrop-filter, no will-change, no transition-all, no GPU hacks
- Works on every device without JS state management
openhands
48a5394204