/* ===== Footer ===== */
footer{ background: #071120; padding: 48px 0 32px; border-top: 1px solid rgba(255,255,255,0.06); }
footer .foot-row{
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 40px;
  align-items: start;
}
footer .brand{ font-size: 18px; margin-bottom: 16px; color: var(--paper); }
footer .brand span{ color: var(--signal); }
footer .foot-col{ display: flex; flex-direction: column; gap: 10px; }
footer .foot-heading{
  font-family: var(--font-head);
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1.2px;
  color: var(--paper);
  margin-top: 0;
  margin-bottom: 6px;
}
footer .foot-col a{
  font-size: 13.5px;
  color: rgba(255,255,255,0.7);
  text-decoration: none;
  transition: color .2s;
}
footer .foot-col a:hover{ color: var(--signal); }
footer .foot-social{
  display: flex;
  gap: 14px;
  align-items: center;
}
footer .social-icon{
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 8px;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  color: var(--ink-dim);
  transition: all .25s ease;
}
footer .social-icon:hover{
  color: var(--signal);
  background: rgba(0,200,150,0.08);
  border-color: rgba(0,200,150,0.25);
  transform: translateY(-2px);
}
footer .copy{
  font-size: 12.5px;
  color: rgba(255,255,255,0.5);
  margin-top: 32px;
  padding-top: 20px;
  border-top: 1px solid rgba(255,255,255,0.06);
}
@media(max-width:600px){ footer .foot-row{ grid-template-columns: 1fr 1fr; gap: 30px; } }