/* ============================================================================
   Burton v7 — Site footer
   ----------------------------------------------------------------------------
   Ink-colored footer. Mission-forward, not link-dump.
   ========================================================================= */

.site-footer {
  background: var(--color-ink-raised);
  color: var(--color-surface);
  padding-block: var(--space-16) var(--space-8);
}

@media (min-width: 900px) {
  .site-footer {
    padding-block: var(--space-20) var(--space-10);
  }
}

.site-footer a {
  color: var(--color-surface);
  opacity: 0.85;
  transition: opacity var(--duration-fast) var(--ease-out),
              color var(--duration-fast) var(--ease-out);
}

.site-footer a:hover {
  opacity: 1;
  color: var(--color-accent);
}

/* ── Content row: brand block + nav share one grid ──────────────────── */

.site-footer__content {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-10);
  margin-bottom: var(--space-10);
  padding-bottom: var(--space-10);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

@media (min-width: 900px) {
  .site-footer__content {
    grid-template-columns: minmax(220px, 260px) 1fr;
    gap: var(--space-16);
    align-items: start;
  }
}

.site-footer__brand-block {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  align-items: flex-start;
}

.site-footer__brand {
  color: var(--color-surface);
  display: inline-flex;
}

.site-footer__brand svg {
  height: 36px;
  width: auto;
}

/* Brand-block mission — two-line editorial signature. The full version
   lives on /mission/ (linked by .site-footer__mission-link below). */
.site-footer__mission {
  font-family: var(--font-sans);
  font-size: var(--fs-sm);
  line-height: var(--lh-normal);
  color: rgba(255, 255, 255, 0.72);
  max-width: 34ch;
  margin: 0;
}

.site-footer__mission em {
  display: block;
  margin-bottom: var(--space-1);
  font-family: var(--font-serif);
  font-style: italic;
  font-weight: 500;
  font-size: var(--fs-base);
  color: var(--color-surface);
  letter-spacing: var(--tracking-snug);
}

.site-footer__mission-link {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: var(--fw-medium);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--color-accent);
  text-decoration: none;
  opacity: 0.9;
  transition: opacity var(--duration-fast) var(--ease-out),
              gap var(--duration-fast) var(--ease-out);
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
}

.site-footer__mission-link:hover {
  opacity: 1;
  color: var(--color-accent);
  gap: var(--space-2);
}

/* ── Nav columns ─────────────────────────────────────────────────────────── */

/* Nav columns — now sit beside the brand block inside .site-footer__content.
   Mobile: 2 cols under the brand block. Desktop: 4 cols filling the right
   side of the grid row. No more orphaned ABOUT / empty cells. */
.site-footer__nav {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-8) var(--space-6);
  margin-bottom: 0;
}

@media (min-width: 900px) {
  .site-footer__nav {
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-6);
    margin-bottom: 0;
  }
}

.site-footer__col h4 {
  font-family: var(--font-sans);
  font-size: var(--fs-xs);
  font-weight: var(--fw-semibold);
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-4);
  opacity: 0.85;
}

.site-footer__col ul {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.site-footer__col a {
  font-family: var(--font-sans);
  font-size: var(--fs-sm);
  font-weight: var(--fw-medium);
  line-height: var(--lh-snug);
}

/* ── Bottom band: legal + disclosure ─────────────────────────────────────── */

/* No top border here — .site-footer__content already provides the divider
   via its border-bottom. Two adjacent hairlines were visually noisy. */
.site-footer__base {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  padding-top: var(--space-8);
  font-size: var(--fs-sm);
  color: rgba(255, 255, 255, 0.72);
}

@media (min-width: 720px) {
  .site-footer__base {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
}

.site-footer__disclosure {
  font-family: var(--font-serif);
  font-style: italic;
  max-width: 56ch;
  line-height: var(--lh-normal);
}

.site-footer__meta {
  display: flex;
  gap: var(--space-6);
  flex-wrap: wrap;
}