/* ============================================
   FOOTER - Best Buy-Inspired Multi-Column Design
   ============================================ */

.footer {
  background: var(--neutral-100);
  color: var(--neutral-900);
  padding: var(--space-4xl) 0 var(--space-xl);
  border-top: 1px solid var(--neutral-200);
}

.footer .container {
  max-width: var(--max-content-width);
}

/* Main Footer Content - Multi-Column */
.footer-content {
  display: grid;
  grid-template-columns: 2fr repeat(3, 1fr);
  gap: var(--space-3xl);
  margin-bottom: var(--space-3xl);
  padding-bottom: var(--space-3xl);
  border-bottom: 1px solid var(--neutral-300);
}

.footer-section h4 {
  font-size: var(--text-sm);
  font-weight: 700;
  color: var(--neutral-900);
  margin-bottom: var(--space-lg);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.footer-section p {
  color: var(--neutral-600);
  line-height: 1.6;
  margin-bottom: var(--space-md);
  font-size: var(--text-sm);
}

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

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

.footer-section ul li a {
  color: var(--neutral-600);
  transition: color 0.15s ease;
  font-size: var(--text-sm);
  text-decoration: none;
}

.footer-section ul li a:hover {
  color: var(--primary);
  text-decoration: none;
}

/* Brand Section */
.footer-brand {
  margin-bottom: var(--space-lg);
}

.footer-brand-name {
  font-size: var(--text-2xl);
  font-weight: 800;
  color: var(--primary);
  margin-bottom: var(--space-md);
  letter-spacing: -0.02em;
}

.footer-brand-desc {
  color: var(--neutral-600);
  font-size: var(--text-sm);
  line-height: 1.6;
  max-width: 300px;
}

/* Newsletter/Email Signup */
.footer-newsletter {
  margin-top: var(--space-lg);
}

.footer-newsletter p {
  margin-bottom: var(--space-sm);
  font-weight: 600;
  color: var(--neutral-900);
}

.footer-newsletter-form {
  display: flex;
  gap: var(--space-xs);
}

.footer-newsletter-input {
  flex: 1;
  min-height: 44px;
  padding: var(--space-sm) var(--space-md) var(--space-sm) 3rem;
  border: 1px solid var(--neutral-300);
  border-radius: var(--radius-sm);
  font-size: var(--text-sm);
  background: var(--bg-primary);
  color: var(--neutral-900);
}

.footer-newsletter-input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 2px var(--primary-light);
}

.footer-newsletter-btn {
  padding: var(--space-sm) var(--space-lg);
  min-height: 44px;
  background: var(--primary);
  color: var(--bg-primary);
  border: none;
  border-radius: var(--radius-sm);
  font-size: var(--text-sm);
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s ease;
}

.footer-newsletter-btn:hover {
  background: var(--primary-hover);
}

/* Footer Bottom Bar */
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: var(--space-xl);
}

.footer-bottom p {
  color: var(--neutral-600);
  font-size: var(--text-xs);
  margin: 0;
}

.footer-bottom-links {
  display: flex;
  gap: var(--space-lg);
}

.footer-bottom-links a {
  color: var(--neutral-600);
  font-size: var(--text-xs);
  text-decoration: none;
  transition: color 0.15s ease;
}

.footer-bottom-links a:hover {
  color: var(--primary);
  text-decoration: none;
}

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

.footer-social a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background: var(--neutral-200);
  border-radius: var(--radius-full);
  color: var(--neutral-600);
  font-size: var(--text-base);
  text-decoration: none;
  transition: all 0.15s ease;
}

.footer-social a:hover {
  background: var(--primary);
  color: var(--bg-primary);
}

/* Responsive */
@media (max-width: 992px) {
  .footer-content {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-2xl);
  }

  .footer-brand {
    grid-column: 1 / -1;
  }
}

@media (max-width: 768px) {
  .footer {
    padding: var(--space-2xl) 0 var(--space-lg);
  }

  .footer-content {
    grid-template-columns: 1fr;
    gap: var(--space-xl);
  }

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

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

  .footer-newsletter-form {
    flex-direction: column;
  }

  .footer-container {
    padding: 0 1.25rem;
  }
}

@media (max-width: 480px) {
  .footer-container {
    padding: 0 1rem;
  }

  .footer-brand-desc {
    max-width: 100%;
  }
}

/* ============================================
   Dark Mode Overrides
   ============================================ */
[data-theme='dark'] .footer-newsletter-input {
  background: var(--bg-secondary);
  color: var(--neutral-100);
}

[data-theme='dark'] .footer-newsletter-input::placeholder {
  color: var(--neutral-400);
}

[data-theme='dark'] .footer-social a {
  background: var(--bg-tertiary);
}