/* ============================================
   FOOTER - newsletter-tools.de
   Neues Design-System 2026
   ============================================ */

.site-footer {
  background-color: var(--gray-900, #0f172a);
  color: var(--color-text-muted, #94a3b8);
  padding: var(--space-16) 0 var(--space-6);
  margin-top: auto;
  position: relative;
  overflow: hidden;
}

/* Subtle gradient overlay at top */
.site-footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-primary), var(--color-accent), transparent);
  opacity: 0.5;
}

.site-footer .container,
.footer-container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-4);
}

/* Footer Content - Simple Structure */
.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-8);
  margin-bottom: var(--space-8);
}

.footer-section h3 {
  color: #f1f5f9;
  font-family: var(--font-heading);
  font-size: var(--text-base);
  font-weight: 600;
  margin-bottom: var(--space-4);
  letter-spacing: -0.01em;
}

.footer-section p {
  font-size: var(--text-sm);
  line-height: 1.7;
  margin-bottom: 0;
  color: #94a3b8;
}

.footer-section ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-section li {
  margin-bottom: var(--space-2);
}

.footer-section a {
  color: #94a3b8;
  text-decoration: none;
  font-size: var(--text-sm);
  transition: all var(--transition-fast);
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
}

.footer-section a:hover {
  color: var(--color-primary);
  transform: translateX(2px);
}

/* Footer Grid - Complex Structure */
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-8);
  margin-bottom: var(--space-8);
}

/* Footer Brand Column */
.footer-brand {
  max-width: 300px;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-bottom: var(--space-4);
  color: #f1f5f9;
  text-decoration: none;
  transition: opacity var(--transition-fast);
}

.footer-logo:hover {
  opacity: 0.9;
  text-decoration: none;
}

.footer-logo img {
  height: 36px;
}

.footer-logo span {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 700;
}

.footer-description {
  font-size: var(--text-sm);
  line-height: 1.8;
  margin-bottom: var(--space-6);
  color: #94a3b8;
}

/* Social Links */
.social-links {
  display: flex;
  gap: var(--space-2);
}

.social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background-color: rgba(255, 255, 255, 0.06);
  color: #94a3b8;
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.social-link:hover {
  background-color: var(--color-primary);
  color: white;
  border-color: var(--color-primary);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
}

.social-link svg {
  width: 20px;
  height: 20px;
}

/* Footer Nav Columns */
.footer-nav h4 {
  color: #f1f5f9;
  font-family: var(--font-heading);
  font-size: var(--text-base);
  font-weight: 600;
  margin-bottom: var(--space-4);
}

.footer-nav ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-nav li {
  margin-bottom: var(--space-2);
}

.footer-nav a {
  color: #94a3b8;
  font-size: var(--text-sm);
  text-decoration: none;
  transition: all var(--transition-fast);
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
}

.footer-nav a:hover {
  color: #f1f5f9;
  transform: translateX(2px);
}

/* Footer Bottom */
.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-4);
  padding-top: var(--space-6);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  font-size: var(--text-sm);
}

.footer-bottom p {
  margin: 0;
  color: #64748b;
}

.footer-copyright {
  color: #64748b;
}

.footer-legal {
  display: flex;
  gap: var(--space-6);
}

.footer-legal a {
  color: #64748b;
  text-decoration: none;
  transition: color var(--transition-fast);
  font-size: var(--text-sm);
}

.footer-legal a:hover {
  color: #f1f5f9;
}

/* Affiliate Hinweis */
.affiliate-hinweis {
  font-size: var(--text-xs);
  color: #64748b;
  width: 100%;
  text-align: center;
  margin-top: var(--space-4);
  opacity: 0.8;
}

/* Mobile Responsive */
@media (max-width: 992px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-6);
  }

  .footer-brand {
    grid-column: 1 / -1;
    max-width: none;
  }

  .footer-content {
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  }
}

@media (max-width: 576px) {
  .site-footer {
    padding: var(--space-8) 0 var(--space-4);
  }

  .footer-grid,
  .footer-content {
    grid-template-columns: 1fr;
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }

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