/* ============================================================
   FOOTER — 4-column, brand blurb, link columns, address,
   ISO 9001 / UK Manufactured / UKCA cert badges.
   ============================================================ */

footer {
  background: #050505;
  padding: 72px 48px 40px;
  color: rgba(255,255,255,0.4);
}

.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
}

.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 56px;
  border-bottom: 0.5px solid rgba(255,255,255,0.08);
  margin-bottom: 32px;
}

.footer-brand-name {
  font-family: 'Anton', sans-serif;
  font-size: 28px;
  color: var(--white);
  letter-spacing: 0.02em;
  margin-bottom: 8px;
  line-height: 1;
}

.footer-logo { height: 56px; width: auto; display: block; margin-bottom: 16px; }

.footer-brand-tag {
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--cyan);
  margin-bottom: 20px;
}

.footer-brand-desc {
  font-size: 13px;
  color: rgba(255,255,255,0.3);
  line-height: 1.65;
  max-width: 280px;
}

.footer-col-heading {
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.6);
  margin-bottom: 20px;
  font-weight: 600;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-links a {
  font-size: 13px;
  color: rgba(255,255,255,0.35);
  text-decoration: none;
  transition: color 0.2s;
}

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

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 12px;
  color: rgba(255,255,255,0.2);
  flex-wrap: wrap;
  gap: 12px;
}

.footer-cert {
  display: flex;
  align-items: center;
  gap: 12px;
}

.cert-badge {
  font-size: 10px;
  letter-spacing: 0.1em;
  border: 0.5px solid rgba(255,255,255,0.15);
  padding: 4px 10px;
  border-radius: 2px;
  color: rgba(255,255,255,0.35);
  text-transform: uppercase;
}

/* ── MOBILE ── */
@media (max-width: 900px) {
  footer { padding: 56px 24px 32px; }
  .footer-top {
    grid-template-columns: 1fr 1fr;
    gap: 36px;
  }
}

@media (max-width: 540px) {
  .footer-top { grid-template-columns: 1fr; }
}