/* ─── FOOTER ─── */
#vm-footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-light);
}

.footer-main {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 4rem;
  padding: 5rem 5rem 4rem;
  border-bottom: 1px solid var(--border-light);
}

/* ─── BRAND COLUMN ─── */
.footer-brand {}
.footer-logo {
  display: flex; align-items: center; gap: 0.6rem;
  text-decoration: none;
  margin-bottom: 1.2rem;
}
.footer-logo-mark {
  width: 24px; height: 24px;
  background: var(--fg);
  clip-path: polygon(50% 0%, 100% 50%, 50% 100%, 0% 50%);
  flex-shrink: 0;
}
.footer-logo-text {
  font-family: var(--font-display);
  font-size: 1.1rem;
  letter-spacing: 0.12em;
  color: var(--fg);
}
.footer-tagline {
  font-size: 0.85rem;
  color: var(--fg-muted);
  line-height: 1.7;
  max-width: 240px;
  margin-bottom: 1.5rem;
}
.footer-social {
  display: flex; gap: 0.75rem;
}
.social-link {
  display: flex; align-items: center; justify-content: center;
  width: 36px; height: 36px;
  border: 1px solid var(--border);
  color: var(--fg-muted);
  text-decoration: none;
  font-size: 0.75rem;
  font-family: var(--font-mono);
  transition: background 0.2s, border-color 0.2s, color 0.2s;
  border-radius: 2px;
}
.social-link:hover {
  background: var(--fg);
  color: var(--bg);
  border-color: var(--fg);
}

/* ─── LINK COLUMNS ─── */
.footer-col-title {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--fg-subtle);
  margin-bottom: 1.2rem;
}
.footer-links-list {
  list-style: none;
  display: flex; flex-direction: column; gap: 0.7rem;
}
.footer-links-list a {
  font-size: 0.85rem;
  color: var(--fg-muted);
  text-decoration: none;
  transition: color 0.2s ease;
  display: inline-flex; align-items: center; gap: 0.3rem;
}
.footer-links-list a:hover { color: var(--fg); }
.footer-links-list a::before {
  content: '';
  width: 0; height: 1px;
  background: var(--fg);
  transition: width 0.2s ease;
  display: inline-block;
}
.footer-links-list a:hover::before { width: 10px; }

/* ─── BOTTOM BAR ─── */
.footer-bottom {
  display: flex; justify-content: space-between; align-items: center;
  padding: 1.5rem 5rem;
  flex-wrap: wrap; gap: 1rem;
}
.footer-copy {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  color: var(--fg-subtle);
  letter-spacing: 0.08em;
}
.footer-bottom-links {
  display: flex; gap: 2rem;
}
.footer-bottom-links a {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  color: var(--fg-subtle);
  text-decoration: none;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  transition: color 0.2s;
}
.footer-bottom-links a:hover { color: var(--fg-muted); }
.footer-badge {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  color: var(--fg-subtle);
  letter-spacing: 0.08em;
  display: flex; align-items: center; gap: 0.4rem;
}
.badge-dot {
  width: 6px; height: 6px;
  background: #4caf50;
  border-radius: 50%;
  animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

@media (max-width: 900px) {
  .footer-main {
    grid-template-columns: 1fr 1fr;
    gap: 2.5rem;
    padding: 3rem 1.5rem 2.5rem;
  }
  .footer-brand { grid-column: 1 / -1; }
  .footer-bottom { padding: 1.5rem; flex-direction: column; align-items: flex-start; }
}