/* ==========================================================================
   Global footer — logo (left), inner-page nav (right), copyright (bottom).
   Identical markup on every page; reuses global .site-logo unchanged.
   Back to Top stays the existing fixed global icon (bottom-right).
   ========================================================================== */

/* Footer root — solid active-mode canvas, hairline separates it from content */
.site-footer {
  padding: var(--space-huge) var(--space-huge) var(--space-xxl);
  background-color: var(--c-canvas);
  color: var(--c-text-primary);
  border-top: 1px solid var(--c-hairline);
}

.site-footer__inner {
  display: flex;
  flex-direction: column;
  gap: var(--space-xxl);
  max-width: 72em;
  margin: 0 auto;
}

/* Top zone — logo left, nav centered (equal side columns, mirrors header grid) */
.site-footer__top {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: var(--space-xl);
}

.site-footer__top .site-logo {
  justify-self: start;
}

/* Footer navigation list */
.site-footer__nav ul {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs) var(--space-xl);
  margin: 0;
  padding: 0;
  list-style: none;
}

/* Footer link — body-md, muted until hover/focus */
.site-footer__nav a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;     /* tap target */
  padding: 0 var(--space-xs);
  font-family: var(--font-body);
  font-size: 16px;      /* body-md */
  font-weight: 360;
  line-height: 1.5;
  color: var(--c-text-secondary);
  text-decoration: none;
}

.site-footer__nav a:hover,
.site-footer__nav a:focus-visible {
  color: var(--c-accent-strong);
}

.site-footer__nav a:focus-visible {
  outline: 2px solid var(--c-accent);
  outline-offset: var(--space-xxs);
}

/* Bottom zone — hairline rule + centered copyright (body-sm) */
.site-footer__bottom {
  padding-top: var(--space-xl);
  border-top: 1px solid var(--c-hairline);
}

.site-footer__copy {
  margin: 0;
  font-family: var(--font-body);
  font-size: 14px;      /* body-sm */
  font-weight: 360;
  line-height: 1.45;
  text-align: center;
  color: var(--c-text-muted);
}

/* --------------------------------------------------------------------------
   Responsive
   -------------------------------------------------------------------------- */

/* Large tablet: tighter side padding (matches header) */
@media (max-width: 1024px) {
  .site-footer {
    padding: var(--space-huge) var(--space-xxl) var(--space-xxl);
  }
}

/* Small tablet + mobile: stacked layout, nav becomes a vertical list */
@media (max-width: 768px) {
  .site-footer__top {
    grid-template-columns: minmax(0, 1fr);
    justify-items: start;
    gap: var(--space-lg);
  }

  .site-footer__nav ul {
    flex-direction: column;
    gap: 0;
  }

  .site-footer__nav a {
    padding: 0;
  }

  .site-footer__copy {
    text-align: left;
  }
}

/* Mobile: compact spacing; extra bottom space keeps copyright clear of Back to Top */
@media (max-width: 480px) {
  .site-footer {
    padding: var(--space-xxl) var(--space-lg) calc(var(--space-huge) + var(--space-lg));
  }

  .site-footer__inner {
    gap: var(--space-xl);
  }

  .site-footer__bottom {
    padding-top: var(--space-lg);
  }
}