/* ══════════════════════════════════════
   FOOTER
══════════════════════════════════════ */
.footer-section {
  position: relative;
  padding: 80px 0 60px;
  background: #0F172A;
  border-top: 1px solid #1E293B;
  transition: background-color .3s, border-color .3s;
}

.footer-container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 32px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr 1fr;
  gap: 48px;
}

.footer-col {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.footer-brand {
  align-items: flex-start;
}

#logo-footer {
  height: 32px;
  width: auto;
  display: block;
  margin-bottom: 24px;
  filter: drop-shadow(0 0 20px rgba(0, 135, 202, 0.3));
}

.footer-tagline {
  font-family: 'Inter', sans-serif;
  font-size: 14px;
  font-weight: 400;
  color: #94A3B8;
  line-height: 1.7;
  margin: 0;
}

.footer-tagline-en {
  font-family: 'Inter', sans-serif;
  font-size: 14px;
  font-weight: 400;
  color: #94A3B8;
  line-height: 1.7;
  margin: 0;
}

.footer-social {
  display: flex;
  gap: 12px;
  margin-top: 20px;
}

.social-link {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid #334155;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #94A3B8;
  transition: all .2s ease;
  background: transparent;
  text-decoration: none;
}

.social-link:hover {
  border-color: #0087CA;
  color: #0087CA;
  background: rgba(0, 135, 202, 0.1);
}

.social-link .material-symbols-outlined {
  font-size: 20px;
}

.footer-heading {
  font-family: 'Inter', sans-serif;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .15em;
  text-transform: uppercase;
  color: #F1F5F9;
  margin: 0;
}

.footer-nav-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-link {
  font-family: 'Inter', sans-serif;
  font-size: 14px;
  font-weight: 400;
  color: #94A3B8;
  text-decoration: none;
  transition: color .2s ease;
}

.footer-link:hover {
  color: #0087CA;
}

.footer-contact {
  font-family: 'Inter', sans-serif;
  font-size: 14px;
  font-weight: 400;
  color: #94A3B8;
  margin: 0;
  line-height: 1.8;
}

.footer-baseline {
  font-family: 'Inter', sans-serif;
  font-size: 10px;
  font-weight: 400;
  color: #64748B;
  margin-top: 32px;
  display: block;
}

/* 3D Icon bottom right */
.footer-3d-icon {
  position: absolute;
  bottom: 24px;
  right: 32px;
  width: 48px;
  height: 48px;
  opacity: 0.8;
  transition: opacity .3s, transform .3s;
}

.footer-3d-icon:hover {
  opacity: 1;
  transform: scale(1.05);
}