/* ============================================================
   EMPTY SANDBOX — FOOTER CSS
   Premium rounded card footer — whitespace around a dark card,
   inspired by Creme Digital / Aloa
   ============================================================ */

#site-footer {
  padding: var(--space-8);
  background-color: var(--color-bg);
}

/* ── The floating dark card ────────────────────────────────── */
.footer-card {
  background-color: #111111;
  border-radius: 28px;
  padding: var(--space-12) var(--space-12) var(--space-8);
  overflow: hidden;
}

/* ── Top row: brand + nav columns ─────────────────────────── */
.footer-top {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: var(--space-12);
  padding-bottom: var(--space-10);
  border-bottom: 1px solid rgba(255,255,255,0.07);
  margin-bottom: var(--space-8);
}

/* Brand column */
.footer-brand {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}

.footer-brand .site-logo__img {
  filter: brightness(0) invert(1);
  opacity: 0.9;
  width: 144px;
  height: 72px;
  object-fit: contain;
}

.footer-brand p {
  font-size: var(--text-sm);
  font-weight: var(--weight-light);
  color: rgba(255, 255, 255, 0.4);
  line-height: 1.75;
  max-width: 30ch;
}

/* Nav columns */
.footer-col h6 {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: var(--weight-regular);
  color: rgba(255, 255, 255, 0.3);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: var(--space-5);
}

.footer-col ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.footer-col ul li a {
  font-size: var(--text-sm);
  font-weight: var(--weight-light);
  color: rgba(255, 255, 255, 0.55);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.footer-col ul li a:hover {
  color: #FFFFFF;
}

/* ── Bottom row: copyright + tagline ──────────────────────── */
.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  flex-wrap: wrap;
}

.footer-copy {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: rgba(255, 255, 255, 0.25);
}

.footer-tagline {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: rgba(255, 255, 255, 0.2);
  letter-spacing: 0.04em;
}

/* ── Responsive ─────────────────────────────────────────── */
@media (max-width: 1024px) {
  .footer-top {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-8);
  }

  .footer-brand {
    grid-column: 1 / -1;
  }
}

@media (max-width: 640px) {
  #site-footer {
    padding: var(--space-4);
  }

  .footer-card {
    border-radius: 20px;
    padding: var(--space-8) var(--space-6) var(--space-6);
  }

  .footer-top {
    grid-template-columns: 1fr 1fr;
  }

  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-2);
  }
}