/* Persistent navigation variant */
.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 1000;
  background: rgba(14, 42, 35, .93);
  box-shadow: 0 1px 0 rgba(255, 255, 255, .12);
  -webkit-backdrop-filter: blur(14px) saturate(125%);
  backdrop-filter: blur(14px) saturate(125%);
}
.overlay-header .site-header {
  position: fixed;
  background: linear-gradient(180deg, rgba(6, 24, 19, .88), rgba(6, 24, 19, .66));
}
.site-header.is-scrolled,
.overlay-header .site-header.is-scrolled {
  background: rgba(14, 42, 35, .97);
  box-shadow: 0 8px 28px rgba(7, 24, 19, .18);
}
.solid-header main {
  padding-top: var(--header-h);
}
.site-menu {
  overscroll-behavior: contain;
}
@media (max-width: 900px) {
  .site-header,
  .overlay-header .site-header {
    background: rgba(14, 42, 35, .98);
  }
}
@media (prefers-reduced-motion: reduce) {
  .site-header { transition: none; }
}