/* SVRNOS shared site chrome — responsive nav with hamburger.
   Loaded on every nav-bearing page. Additive: doesn't restyle the
   existing nav, only collapses the link list on small screens and
   adds a toggle button. */

.nav-toggle {
  display: none;
  appearance: none;
  background: transparent;
  border: 1px solid currentColor;
  border-radius: 6px;
  color: inherit;
  cursor: pointer;
  padding: 6px 9px;
  line-height: 0;
  align-items: center;
  justify-content: center;
  opacity: 0.55;
  transition: opacity .15s ease;
}
.nav-toggle:hover { opacity: 0.95; }
.nav-toggle:focus-visible { outline: 2px solid currentColor; outline-offset: 2px; }
.nav-toggle svg { width: 18px; height: 18px; display: block; }
.nav-toggle .icon-close { display: none; }
.nav-open .nav-toggle .icon-open { display: none; }
.nav-open .nav-toggle .icon-close { display: block; }

@media (max-width: 760px) {
  .nav-toggle { display: inline-flex; }

  /* Collapse the link list by default; reveal when nav is open. */
  .nav-links {
    display: none !important;
    position: fixed;
    left: 0;
    right: 0;
    top: var(--svrnos-nav-h, 56px);
    flex-direction: column !important;
    gap: 0 !important;
    padding: 12px 20px 16px !important;
    background: inherit;
    background-color: rgba(251, 250, 246, 0.985);
    -webkit-backdrop-filter: saturate(180%) blur(12px);
    backdrop-filter: saturate(180%) blur(12px);
    border-bottom: 1px solid rgba(20, 20, 15, 0.08);
    box-shadow: 0 6px 18px rgba(20, 20, 15, 0.06);
    z-index: 49;
  }
  .nav-open .nav-links {
    display: flex !important;
  }
  .nav-links a {
    padding: 12px 4px !important;
    font-size: 15px !important;
    border-bottom: 1px solid rgba(20, 20, 15, 0.06) !important;
  }
  .nav-links a:last-child { border-bottom: 0 !important; }
}

/* Lock background scroll while the menu is open. */
body.nav-open { overflow: hidden; }