/* ─────────────────────────────────────────────────────────────
   American Visa Guide — Shared site chrome (nav + footer)
   Single source of truth for the top nav and footer on every page.
   Markup is injected by /js/nav.js.

   Colour/font values fall back to palette literals so the nav
   renders identically on pages that don't load the token files
   (guide.html / life.html use their own embedded tokens).
   ───────────────────────────────────────────────────────────── */

.site-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  height: 64px;
  background-color: var(--color-surface, #fdfaf3);
  border-bottom: 1px solid var(--color-border, #ddd6cb);
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  max-width: 1280px;
  margin-inline: auto;
  padding-inline: 1.5rem;
  gap: 1rem;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
  flex-shrink: 0;
}

.nav-brand-mark {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
}

.nav-brand-text {
  font-family: var(--font-display, 'Fraunces', Georgia, serif);
  font-size: 1.125rem;
  color: var(--color-text, #1e1c17);
  line-height: 1;
}

.nav-brand-text span {
  font-style: italic;
  color: var(--color-accent, var(--color-gold, #3e7188));
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.site-nav .nav-link {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 0.75rem;
  border-radius: 0.375rem;
  font-family: var(--font-ui, 'Outfit', sans-serif);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text-secondary, #56524a);
  text-decoration: none;
  white-space: nowrap;
  transition: color 150ms ease, background-color 150ms ease;
}

.site-nav .nav-link svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
  opacity: 0.7;
  transition: opacity 150ms ease;
}

.site-nav .nav-link:hover {
  color: var(--color-text, #1e1c17);
  background-color: var(--color-bg, #f4efe6);
}

.site-nav .nav-link:hover svg {
  opacity: 1;
}

.site-nav .nav-link[aria-current="page"],
.site-nav .nav-link--active {
  color: var(--color-primary, #2b3a42);
  background-color: var(--color-primary-subtle, #e8eef1);
  font-weight: 600;
}

.site-nav .nav-link[aria-current="page"] svg,
.site-nav .nav-link--active svg {
  opacity: 1;
}

.site-nav .nav-link--support {
  color: var(--color-accent, var(--color-gold, #3e7188));
  border: 1px solid var(--color-accent-border, #a9cbd9);
  border-radius: 9999px;
  padding-inline: 1rem;
}

.site-nav .nav-link--support:hover {
  background-color: var(--color-accent-subtle, #edf4f8);
  color: var(--color-accent-hover, #2f5a6e);
}

.site-nav .nav-link:focus-visible {
  outline: 2px solid var(--color-primary, #2b3a42);
  outline-offset: 2px;
}

/* Hamburger toggle button */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  background: none;
  border: 1px solid var(--color-border, #ddd6cb);
  border-radius: 0.375rem;
  cursor: pointer;
  padding: 0.5rem;
  flex-shrink: 0;
  transition: border-color 150ms ease, background-color 150ms ease;
}

.nav-toggle:hover {
  background-color: var(--color-bg, #f4efe6);
  border-color: var(--color-border-strong, #a39c8e);
}

.nav-toggle:focus-visible {
  outline: 2px solid var(--color-primary, #2b3a42);
  outline-offset: 2px;
}

.nav-toggle-bar {
  display: block;
  width: 18px;
  height: 2px;
  background-color: var(--color-text-secondary, #56524a);
  border-radius: 9999px;
  transition: transform 200ms ease, opacity 200ms ease;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Mobile / narrow nav — 7 menu items need ~1050px inline */
@media (max-width: 1050px) {
  .nav-toggle {
    display: flex;
  }

  .nav-menu {
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0.25rem;
    padding: 0.75rem;
    background-color: var(--color-surface, #fdfaf3);
    border-bottom: 1px solid var(--color-border, #ddd6cb);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.10);
    transform: translateY(-8px);
    opacity: 0;
    pointer-events: none;
    visibility: hidden;
    transition: transform 200ms ease, opacity 200ms ease, visibility 200ms;
  }

  .nav-menu.is-open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
    visibility: visible;
  }

  .site-nav .nav-link {
    padding: 0.75rem 1rem;
    font-size: 1rem;
    border-radius: 0.375rem;
  }

  .site-nav .nav-link svg {
    width: 18px;
    height: 18px;
  }
}

/* Skip link (injected with the nav when the page has none) */
.skip-link {
  position: absolute;
  top: 0.5rem;
  left: 0.5rem;
  z-index: 400;
  padding: 0.5rem 1rem;
  background-color: var(--color-primary, #2b3a42);
  color: #ffffff;
  font-size: 0.875rem;
  font-weight: 600;
  border-radius: 0.375rem;
  text-decoration: none;
  transform: translateY(-150%);
  transition: transform 150ms ease;
}

.skip-link:focus {
  transform: translateY(0);
  outline: 2px solid #ffffff;
  outline-offset: 2px;
}

/* ─── Shared site footer ───────────────────────────────────── */
.avg-footer {
  background-color: var(--color-navy-dark, #1e2b32);
  color: rgba(244, 239, 230, 0.75);
  margin-top: 4rem;
}

.avg-footer__container {
  max-width: 1280px;
  margin-inline: auto;
  padding: 3rem 1.5rem 2rem;
}

.avg-footer__note {
  font-size: 0.875rem;
  line-height: 1.7;
  max-width: 65ch;
  margin: 0 0 2rem;
  color: rgba(244, 239, 230, 0.75);
}

.avg-footer__note strong {
  color: var(--color-text-on-dark, #f4efe6);
}

.avg-footer__cols {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1.5rem;
  padding-top: 2rem;
  border-top: 1px solid rgba(244, 239, 230, 0.15);
}

.avg-footer__hd {
  font-family: var(--font-display, 'Fraunces', Georgia, serif);
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--color-text-on-dark, #f4efe6);
  margin: 0 0 0.5rem;
}

.avg-footer a {
  color: rgba(244, 239, 230, 0.85);
  text-decoration: underline;
}

.avg-footer a:hover {
  color: #c8dde6;
}

.avg-footer__kofi {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-ui, 'Outfit', sans-serif);
  font-size: 0.8125rem;
  font-weight: 600;
  color: #c8dde6 !important;
  border: 1px solid rgba(200, 221, 230, 0.5);
  border-radius: 9999px;
  padding: 0.5rem 1rem;
  text-decoration: none !important;
}

.avg-footer__kofi:hover {
  background: rgba(200, 221, 230, 0.1);
}

.avg-footer__copyright {
  font-size: 0.75rem;
  color: rgba(244, 239, 230, 0.5);
  margin: 2rem 0 0;
  padding-top: 1.25rem;
  border-top: 1px solid rgba(244, 239, 230, 0.15);
}