/* ==========================================================================
   FOOTER - Enterprise B2B Style
   ========================================================================== */

.footer {
  background-color: var(--color-bg-dark, #03040c);
  padding-top: var(--spacing-32);
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  position: relative;
  overflow: hidden;
  font-family: var(--font-family-base);
}

.footer::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--color-accent-500), transparent);
  opacity: 0.3;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: var(--spacing-16);
  margin-bottom: var(--spacing-20);
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-8);
}

.footer-logo img {
  height: 48px;
  object-fit: contain;
}

.footer-desc {
  color: var(--color-neutral-400);
  font-size: var(--font-size-md);
  line-height: 1.6;
  max-width: 340px;
}

.footer-social {
  display: flex;
  gap: var(--spacing-4);
  margin-top: var(--spacing-2);
}

.social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.05);
  color: var(--color-neutral-300);
  transition: all var(--transition-normal);
}

.social-link:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.2);
  color: #fff;
  transform: translateY(-2px);
}

.footer-col h4 {
  color: var(--color-neutral-100);
  margin-bottom: var(--spacing-8);
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 2px;
  font-weight: 700;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-5);
}

.footer-links a {
  color: var(--color-neutral-400);
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  font-size: var(--font-size-md);
  width: fit-content;
}

.footer-links a::before {
  content: '';
  width: 12px;
  height: 1px;
  background-color: var(--color-accent-500);
  margin-right: 12px;
  opacity: 0;
  transform: translateX(-10px);
  transition: all var(--transition-normal);
}

.footer-links a:hover {
  color: var(--color-accent-400);
}

.footer-links a:hover::before {
  opacity: 1;
  transform: translateX(0);
}

.footer-contact {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-6);
}

.footer-contact p {
  color: var(--color-neutral-400);
  font-size: var(--font-size-md);
  line-height: 1.6;
}

.footer-contact strong {
  color: var(--color-neutral-100);
  display: block;
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 6px;
}

.footer-contact a {
  color: var(--color-neutral-300);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.footer-contact a:hover {
  color: var(--color-accent-400);
}

.footer-bottom {
  padding: var(--spacing-8) 0;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--color-neutral-500);
  font-size: 14px;
}

.footer-legal {
  display: flex;
  gap: var(--spacing-8);
}

.footer-legal a {
  color: var(--color-neutral-500);
  transition: color var(--transition-fast);
}

.footer-legal a:hover {
  color: var(--color-neutral-300);
}

/* Responsive */
@media (max-width: 1024px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-12);
  }
}

@media (max-width: 640px) {
  .footer {
    padding-top: var(--spacing-20);
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-10);
  }
  
  .footer-bottom {
    flex-direction: column;
    gap: var(--spacing-6);
    text-align: center;
  }

  .footer-legal {
    justify-content: center;
  }
}