/* footer.css — Site footer */

.footer {
  background: var(--color-bg-surface);
  border-top: 1px solid var(--color-border);
}

.footer__inner {
  display: grid;
  gap: var(--space-10);
  padding-block: var(--space-16);
}

@media (min-width: 768px) {
  .footer__inner {
    grid-template-columns: 220px 1fr;
    gap: var(--space-12);
  }
}

/* ─── Brand column ─── */

.footer__brand {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.footer__logo {
  align-self: flex-start;
}

.footer__tagline {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: var(--leading-relaxed);
}

/* Social links */
.footer__social {
  display: flex;
  gap: var(--space-3);
  margin-top: var(--space-2);
}

.footer__social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  color: var(--color-text-muted);
  transition: color var(--duration-fast) var(--ease-out),
              border-color var(--duration-fast) var(--ease-out),
              background var(--duration-fast) var(--ease-out);
}

.footer__social-link:hover {
  color: var(--color-text);
  border-color: rgba(255, 255, 255, 0.2);
  background: rgba(255, 255, 255, 0.05);
}

/* ─── Nav columns ─── */

.footer__nav {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-8);
}

@media (min-width: 640px) {
  .footer__nav {
    grid-template-columns: repeat(4, 1fr);
  }
}

.footer__nav-heading {
  font-size: var(--text-xs);
  font-weight: var(--font-semibold);
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  color: var(--color-text);
  margin-bottom: var(--space-4);
}

.footer__nav-col ul {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.footer__nav-link {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  transition: color var(--duration-fast) var(--ease-out);
}

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

/* ─── Bottom bar ─── */

.footer__bottom {
  border-top: 1px solid var(--color-border);
  padding-block: var(--space-5);
}

.footer__bottom-inner {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  align-items: center;
  text-align: center;
}

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

.footer__copyright,
.footer__made-with {
  font-size: var(--text-xs);
  color: var(--color-text-subtle);
}