- mobile (≤900px): hide .nav-cta (was overflowing viewport by 65px)
- .nav-hamburger span: center inside button via left:50%; top:50%
- .nav-hamburger.active states: add translate(-50%,-50%) so the X
lines stay centered after rotation
- .hero-bg: switch from background-* to object-fit/object-position
(was an <img> but CSS targeted background-image → 1024px wide
hero-bg broke mobile layout)
- responsive: also override nav.scrolled padding on mobile
(specificity 0,1,1 > 0,0,1 → 3rem padding stayed in effect,
pushing the hamburger off-screen with width:0 on scroll)
- home/index.php: rename lage-map → lage-map-wrapper so the
existing .lage-map-wrapper CSS (border, margin-top: 3rem,
overflow: hidden, full-width 450px iframe) actually applies
