:root{--site-header-height:68px;--site-header-offset:68px}
body>.top{position:sticky;top:0;z-index:30;transform:translateY(0);transition:transform 160ms ease}
body>.top.site-header-hidden{transform:translateY(-100%)}
body>.top:focus-within{transform:translateY(0)}
body>.top :is(a,button):focus-visible{outline:3px solid var(--accent);outline-offset:3px}
@media(prefers-reduced-motion:reduce){body>.top{transition:none}}

.header-actions{display:flex;align-items:center;gap:20px}
.header-start{font-size:14px;padding:9px 14px;min-height:42px;white-space:nowrap}
@media(max-width:600px){
  body>.top{height:108px;flex-direction:column;align-items:stretch;justify-content:center;gap:6px;padding:8px 24px}
  .header-actions{justify-content:space-between;gap:12px}
  .header-actions .lang button{min-height:42px}
  .header-start{padding:9px 12px}
}