/* ============================================================
   MITCON Forum — Footer
   Bottom of every page — SDG pledge layout
   Depends on: tokens.css, base.css
   ============================================================ */

.site-footer {
  background: var(--beige-soft);
  padding: 80px 0 0;
  border-top: 1px solid var(--border);
  margin-top: 60px;
}

.footer-top {
  padding-bottom: 60px;
}

/* ---------- FOOTER GRID ---------- */
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 2fr;
  gap: 50px;
}

@media (max-width: 991px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 40px;
  }

  .footer-grid > div:first-child,
  .footer-grid > div:last-child {
    grid-column: 1 / -1;
  }
}

@media (max-width: 575px) {
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 36px;
  }
}

/* ---------- FOOTER BRAND BLOCK ---------- */
.footer-brand-block .navbar-brand {
  margin-bottom: 18px;
}

.footer-blurb {
  color: var(--text-muted);
  font-size: 14.5px;
  line-height: 1.65;
  margin: 14px 0 24px;
  max-width: 320px;
}

/* ---------- NEWSLETTER ---------- */
.newsletter h6 {
  font-family: var(--font-display);
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0 0 12px;
}

.newsletter-form {
  display: flex;
  background: var(--white);
  border-radius: var(--radius-pill);
  padding: 5px;
  box-shadow: var(--shadow-sm);
  max-width: 340px;
  border: 1px solid var(--border);
}

.newsletter-form input {
  flex: 1;
  border: none;
  background: transparent;
  padding: 10px 18px;
  font-family: inherit;
  font-size: 14px;
  color: var(--ink);
  outline: none;
}

.newsletter-form input::placeholder {
  color: var(--muted);
}

.newsletter-form button {
  width: 42px;
  height: 42px;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 50%;
  cursor: pointer;
  display: grid;
  place-items: center;
  transition: all 0.3s var(--ease);
  font-size: 16px;
}

.newsletter-form button:hover {
  background: var(--accent-deep);
  transform: rotate(-8deg);
}

/* ---------- FOOTER COLUMNS ---------- */
.footer-h {
  font-family: var(--font-display);
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0 0 18px;
}

.footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 11px;
}

.footer-links a {
  color: var(--ink);
  font-size: 14.5px;
  text-decoration: none;
  transition: color 0.25s var(--ease);
}

.footer-links a:hover {
  color: var(--accent);
}

/* ---------- SDG PLEDGE BLOCK ---------- */
.footer-sdg {
  font-size: 14.5px;
  color: var(--text-muted);
  line-height: 1.65;
  margin: 0 0 18px;
}

.footer-sdg strong {
  color: var(--ink);
  font-weight: 700;
}

.sdg-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.sdg-badges span {
  padding: 6px 12px;
  background: rgba(21, 90, 61, 0.10);
  color: var(--accent-deep);
  border-radius: var(--radius-pill);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.04em;
  transition: all 0.25s var(--ease);
  cursor: default;
}

.sdg-badges span:hover {
  background: var(--accent);
  color: #fff;
}

/* ---------- FOOTER BOTTOM BAR ---------- */
.footer-bottom {
  border-top: 1px solid var(--border);
  padding: 24px 0;
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  justify-content: space-between;
  align-items: center;
}

.footer-bottom p {
  margin: 0;
  font-size: 13.5px;
  color: var(--text-muted);
}

.footer-meta {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  font-size: 13.5px;
}

.footer-meta a {
  color: var(--text-muted);
  transition: color 0.25s var(--ease);
}

.footer-meta a:hover {
  color: var(--accent);
}

.footer-meta span {
  color: var(--text-muted);
}