/* ============================================================
   Biomarmedical — Footer (.site-footer)
   Deep-green band, 4-column grid, social + contact icons
   recoloured via CSS mask (.ftr-ico).
   Depends on: global.css (tokens).
   ============================================================ */

.site-footer {
  background: var(--biomar-green-deep);
  color: white;
  padding-top: var(--space-9);
}
.site-footer__grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
  gap: var(--space-7);
  padding-bottom: var(--space-8);
}
.site-footer__logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
}
.site-footer__logo img {
  width: 54px;
  height: 54px;
  background: white;
  border-radius: 50%;
  padding: 4px;
}
.site-footer__wordmark {
  font-weight: 800;
  font-size: 16px;
  letter-spacing: 0.05em;
}
.site-footer__lead {
  font-size: 14px;
  line-height: 1.65;
  color: rgba(255,255,255,0.85);
  margin: 0 0 var(--space-5);
  max-width: 320px;
}
.site-footer__social { display: flex; gap: var(--space-3); }
.site-footer__social a {
  width: 38px;
  height: 38px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(255,255,255,0.35);
  border-radius: 50%;
  transition: background var(--duration) var(--ease),
              border-color var(--duration) var(--ease);
}
.site-footer__social a:hover {
  background: rgba(255,255,255,0.1);
  border-color: var(--biomar-green-mint);
  text-decoration: none;
}

/* Footer icons recoloured to light mint via CSS mask. The SVG source
   has its own stroke colour, so we layer it as a mask over a tinted
   background to override it. */
.ftr-ico {
  display: inline-block;
  width: 18px;
  height: 18px;
  background-color: var(--biomar-green-mint);
  -webkit-mask: var(--ftr-ico-url) center / contain no-repeat;
          mask: var(--ftr-ico-url) center / contain no-repeat;
  flex-shrink: 0;
  transition: background-color var(--duration) var(--ease);
}
.ftr-ico--sm { width: 14px; height: 14px; }
.site-footer__social a:hover .ftr-ico { background-color: var(--white); }
.site-footer__col a:hover .ftr-ico { background-color: var(--white); }

.site-footer__col h5 {
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: rgba(255,255,255,0.6);
  margin: 0 0 var(--space-4);
}
.site-footer__col ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}
.site-footer__col li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: rgba(255,255,255,0.9);
}
.site-footer__col a {
  color: rgba(255,255,255,0.9);
  text-decoration: none;
}
.site-footer__col a:hover { color: white; text-decoration: underline; }
.site-footer__legal { border-top: 1px solid rgba(255,255,255,0.12); }
.site-footer__legal-row {
  display: flex;
  justify-content: space-between;
  gap: var(--space-4);
  padding: var(--space-4) 0;
  font-size: 12px;
  color: rgba(255,255,255,0.6);
  flex-wrap: wrap;
}

/* ============================================================
   Footer responsive
   ============================================================ */
@media (max-width: 1024px) {
  .site-footer__grid { gap: var(--space-6); }
}

@media (max-width: 880px) {
  .site-footer { padding-top: var(--space-8); }
  .site-footer__grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-6);
    padding-bottom: var(--space-7);
  }
  .site-footer__brand { grid-column: 1 / -1; }
}

@media (max-width: 767px) {
  .site-footer { padding-top: var(--space-7); }
  .site-footer__grid {
    grid-template-columns: 1fr;
    gap: var(--space-5);
    padding-bottom: var(--space-6);
  }
  .site-footer__brand { grid-column: auto; }
  .site-footer__legal-row {
    flex-direction: column;
    gap: 4px;
    align-items: flex-start;
  }
}