.footer {
  padding: var(--spacing-xl) 0 var(--spacing-md);
  position: relative;
  border-top: 1px solid var(--color-glass-border);
}

.footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-cyan-primary), transparent);
}

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

.footer-brand {
  padding-right: var(--spacing-md);
}

.footer-logo {
  font-family: var(--font-display);
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--color-text-primary);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: var(--spacing-sm);
}

.footer-logo-icon {
  width: 42px;
  height: 42px;
  background: linear-gradient(135deg, var(--color-cyan-primary), var(--color-cyan-secondary));
  border-radius: var(--border-radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  color: var(--color-bg);
  box-shadow: var(--shadow-glow);
}

.footer-description {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  line-height: 1.7;
  margin-bottom: var(--spacing-md);
}

.footer-social {
  display: flex;
  gap: 0.75rem;
}

.footer-social-link {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 212, 255, 0.1);
  border: 1px solid rgba(0, 212, 255, 0.2);
  border-radius: var(--border-radius-sm);
  color: var(--color-cyan-primary);
  transition: all var(--transition-fast);
}

.footer-social-link:hover {
  background: var(--color-cyan-primary);
  color: var(--color-bg);
  transform: translateY(-3px);
  box-shadow: 0 0 20px rgba(0, 212, 255, 0.4);
}

.footer-nav-title {
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-sm);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.footer-nav-list {
  list-style: none;
}

.footer-nav-item {
  margin-bottom: 0.625rem;
}

.footer-nav-link {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  text-decoration: none;
  transition: all var(--transition-fast);
  display: inline-block;
}

.footer-nav-link:hover {
  color: var(--color-cyan-primary);
  transform: translateX(4px);
}

.footer-contact-item {
  display: flex;
  align-items: flex-start;
  gap: 0.625rem;
  margin-bottom: 0.875rem;
}

.footer-contact-icon {
  width: 18px;
  height: 18px;
  color: var(--color-cyan-primary);
  flex-shrink: 0;
  margin-top: 2px;
}

.footer-contact-text {
  font-size: 0.85rem;
  color: var(--color-text-secondary);
  line-height: 1.5;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: var(--spacing-md);
  border-top: 1px solid var(--color-glass-border);
}

.footer-copyright {
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

.footer-links {
  display: flex;
  gap: 1.5rem;
}

.footer-links a {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: var(--color-cyan-primary);
}

.friend-links {
  margin-top: var(--spacing-md);
  padding-top: var(--spacing-md);
  border-top: 1px dashed rgba(0, 212, 255, 0.2);
}

.friend-links-title {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--color-cyan-primary);
  margin-bottom: var(--spacing-sm);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.friend-links-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.625rem;
}

.friend-link-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 0.875rem;
  background: rgba(0, 212, 255, 0.05);
  border: 1px solid rgba(0, 212, 255, 0.15);
  border-radius: var(--border-radius-sm);
  font-size: 0.85rem;
  color: var(--color-text-secondary);
  text-decoration: none;
  transition: all var(--transition-fast);
}

.friend-link-item:hover {
  background: rgba(0, 212, 255, 0.1);
  border-color: var(--color-cyan-primary);
  color: var(--color-cyan-primary);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 212, 255, 0.2);
}

.friend-link-logo {
  width: 16px;
  height: 16px;
  object-fit: contain;
}

@media (max-width: 1024px) {
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .footer-brand {
    grid-column: span 2;
    padding-right: 0;
  }
}

@media (max-width: 768px) {
  .footer {
    padding: var(--spacing-lg) 0 var(--spacing-sm);
  }

  .footer-grid {
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
  }

  .footer-brand {
    grid-column: span 1;
    text-align: center;
  }

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

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

  .footer-description {
    text-align: center;
    font-size: 0.85rem;
  }

  .footer-nav-title {
    text-align: center;
    font-size: 0.9rem;
  }

  .footer-nav-list {
    text-align: center;
  }

  .footer-contact-item {
    justify-content: center;
    text-align: left;
  }

  .footer-bottom {
    flex-direction: column;
    gap: var(--spacing-sm);
    text-align: center;
  }

  .footer-links {
    flex-wrap: wrap;
    justify-content: center;
    gap: 1rem;
  }

  .friend-links {
    margin-top: var(--spacing-md);
    padding-top: var(--spacing-md);
  }

  .friend-links-title {
    text-align: center;
  }

  .friend-links-list {
    justify-content: center;
  }
}

@media (max-width: 480px) {
  .footer-logo {
    font-size: 1.5rem;
  }

  .footer-logo-icon {
    width: 36px;
    height: 36px;
  }

  .footer-social-link {
    width: 36px;
    height: 36px;
  }

  .footer-nav-title {
    font-size: 0.85rem;
  }

  .friend-link-item {
    font-size: 0.8rem;
    padding: 0.35rem 0.75rem;
  }
}