/**
 * Atlas Vertical – Site footer
 */

.site-footer {
  border-top: 1px solid var(--color-border);
  margin-top: var(--space-xl);
}

.site-footer__inner {
  display: flex;
  flex-direction: column;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-md);
  max-width: var(--container-wide);
  margin-inline: auto;
  padding: var(--space-xl) var(--space-md);
  text-align: center;
}

/* Secondary navigation — full-width row above copyright/meta (see 640px row layout) */
.site-footer__nav {
  flex: 1 1 100%;
  width: 100%;
}

.site-footer__nav-columns {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-lg);
  width: 100%;
}

.site-footer__nav-column {
  width: 100%;
  max-width: 16rem;
}

.site-footer__nav-heading {
  margin: 0 0 var(--space-sm);
  font-size: var(--font-size-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-text-muted);
  text-align: center;
}

.site-footer__nav-list {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-xs);
  list-style: none;
  margin: 0;
  padding: 0;
}

.site-footer__nav a {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  text-decoration: none;
}

.site-footer__nav a:hover {
  color: var(--color-text);
}

.site-footer__nav a:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
  border-radius: 2px;
}

/* Match header nav: icon-only social links (partials/navigation.hbs) */
.site-footer__nav a:has(.site-nav__icon) {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 8px 10px;
  border-radius: 8px;
}

.site-footer__nav .nav-current a {
  color: var(--color-text);
  font-weight: 600;
}

.site-footer__copyright {
  margin: 0;
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

.site-footer__credit {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  text-decoration: none;
}

.site-footer__credit:hover {
  color: var(--color-text);
}

.site-footer__version {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  opacity: 0.45;
  letter-spacing: 0.03em;
  user-select: none;
}

@media (min-width: 640px) {
  .site-footer__inner {
    flex-direction: row;
    justify-content: space-between;
    text-align: left;
  }

  .site-footer__nav-columns {
    flex-direction: row;
    flex-wrap: wrap;
    justify-content: flex-start;
    align-items: flex-start;
    gap: var(--space-xl) var(--space-2xl);
  }

  .site-footer__nav-column {
    flex: 0 1 auto;
    width: auto;
    max-width: none;
    min-width: 6.5rem;
  }

  .site-footer__nav-heading {
    text-align: left;
  }

  .site-footer__nav-list {
    align-items: flex-start;
  }
}