/* ============================================================
   iKardia — Footer
   ============================================================ */

.footer {
  background: #0C1020;
  padding: 64px var(--section-pad-x) 28px;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer__top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 44px;
}

/* Brand Column */
.footer__brand {}

.footer__logo {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  margin-bottom: 18px;
}

.footer__logo-mark {
  width: 36px;
  height: 36px;
}

.footer__logo-name {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 800;
  color: var(--color-white);
  letter-spacing: 1.5px;
  display: block;
}

.footer__logo-tag {
  font-family: var(--font-display);
  font-size: 8px;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--color-teal);
  display: block;
  margin-top: 2px;
}

.footer__brand-desc {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.38);
  line-height: 1.75;
  max-width: 240px;
}

/* Nav Columns */
.footer__col {}

.footer__col-title {
  font-family: var(--font-display);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--color-teal);
  margin-bottom: 18px;
  display: block;
}

.footer__col-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer__col-list a {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.42);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.footer__col-list a:hover {
  color: var(--color-teal);
}

/* Bottom Bar */
.footer__bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}

.footer__copy {
  font-size: 11px;
  color: rgba(255, 255, 255, 0.22);
}

.footer__socials {
  display: flex;
  gap: 10px;
}

.footer__social {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255, 255, 255, 0.35);
  font-size: 12px;
  font-weight: 700;
  text-decoration: none;
  transition: background var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast);
}

.footer__social:hover {
  background: var(--color-teal);
  color: var(--color-navy);
  border-color: var(--color-teal);
}

/* ── Responsive ── */
@media (max-width: 900px) {
  .footer__top { grid-template-columns: 1fr 1fr; gap: 36px; }
  .footer__brand { grid-column: 1 / -1; }
}

@media (max-width: 480px) {
  .footer__top { grid-template-columns: 1fr; }
  .footer__brand { grid-column: auto; }
  .footer__bottom { flex-direction: column; align-items: flex-start; }
}