/* ===== Footer Component ===== */
.footer {
  background-color: var(--footer-bg);
  color: var(--footer-text);
  margin-top: var(--space-16);
  position: relative;
  overflow: hidden;
}

.footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--gradient-primary);
}

.footer-content {
  padding: var(--space-12) 0 var(--space-8);
  display: grid;
  gap: var(--space-8);
  grid-template-columns: 1fr;
}

.footer-section {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.footer-title {
  font-family: var(--font-family-heading);
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-bold);
  color: var(--neutral-white);
  margin-bottom: var(--space-2);
}

.footer-description {
  color: var(--text-lighter);
  line-height: var(--line-height-relaxed);
  max-width: 20rem;
}

.footer-subtitle {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  color: var(--neutral-white);
  margin-bottom: var(--space-3);
  position: relative;
}

.footer-subtitle::after {
  content: '';
  position: absolute;
  bottom: -0.5rem;
  left: 0;
  width: 2rem;
  height: 2px;
  background: var(--gradient-primary);
  border-radius: var(--radius-full);
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.footer-links a {
  color: var(--text-lighter);
  font-size: var(--font-size-base);
  transition: var(--transition-all);
  padding: var(--space-1) 0;
  position: relative;
}

.footer-links a:hover {
  color: var(--neutral-white);
  transform: translateX(4px);
}

.footer-links a::before {
  content: '';
  position: absolute;
  left: -1rem;
  top: 50%;
  transform: translateY(-50%);
  width: 0;
  height: 1px;
  background: var(--primary-sage);
  transition: var(--transition-all);
}

.footer-links a:hover::before {
  width: 0.5rem;
}

/* ===== Social Links ===== */
.social-links {
  display: flex;
  gap: var(--space-3);
  margin-top: var(--space-2);
}

.social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  background-color: rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-full);
  color: var(--neutral-white);
  font-size: var(--font-size-lg);
  transition: var(--transition-all);
  backdrop-filter: blur(10px);
}

.social-link:hover {
  background-color: var(--primary-sage);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

/* ===== Contact Info ===== */
.contact-info {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.contact-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  color: var(--text-lighter);
  font-size: var(--font-size-base);
  transition: var(--transition-all);
}

.contact-item:hover {
  color: var(--neutral-white);
}

.contact-icon {
  width: 1.5rem;
  height: 1.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--primary-sage);
  border-radius: var(--radius-full);
  color: var(--neutral-white);
  font-size: var(--font-size-sm);
  flex-shrink: 0;
}

/* ===== Newsletter Signup ===== */
.newsletter {
  background-color: rgba(255, 255, 255, 0.05);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.newsletter-title {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  color: var(--neutral-white);
  margin-bottom: var(--space-2);
}

.newsletter-description {
  color: var(--text-lighter);
  font-size: var(--font-size-sm);
  margin-bottom: var(--space-4);
  line-height: var(--line-height-relaxed);
}

.newsletter-form {
  display: flex;
  gap: var(--space-2);
  flex-direction: column;
}

.newsletter-input {
  flex: 1;
  padding: var(--space-3) var(--space-4);
  background-color: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-lg);
  color: var(--neutral-white);
  font-size: var(--font-size-base);
  transition: var(--transition-all);
}

.newsletter-input::placeholder {
  color: var(--text-lighter);
}

.newsletter-input:focus {
  background-color: rgba(255, 255, 255, 0.15);
  border-color: var(--primary-sage);
  box-shadow: 0 0 0 3px rgba(107, 142, 35, 0.2);
}

.newsletter-btn {
  padding: var(--space-3) var(--space-5);
  background: var(--gradient-primary);
  color: var(--neutral-white);
  border: none;
  border-radius: var(--radius-lg);
  font-weight: var(--font-weight-medium);
  cursor: pointer;
  transition: var(--transition-all);
  white-space: nowrap;
}

.newsletter-btn:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

/* ===== Footer Bottom ===== */
.footer-bottom {
  padding: var(--space-6) 0;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  align-items: center;
  text-align: center;
}

.footer-copyright {
  color: var(--text-lighter);
  font-size: var(--font-size-sm);
  line-height: var(--line-height-normal);
}

.footer-legal {
  display: flex;
  gap: var(--space-4);
  flex-wrap: wrap;
  justify-content: center;
}

.footer-legal a {
  color: var(--text-lighter);
  font-size: var(--font-size-sm);
  transition: var(--transition-all);
}

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

/* ===== Back to Top Button ===== */
.back-to-top {
  position: fixed;
  bottom: var(--space-6);
  right: var(--space-6);
  width: 3rem;
  height: 3rem;
  background: var(--gradient-primary);
  color: var(--neutral-white);
  border: none;
  border-radius: var(--radius-full);
  box-shadow: var(--shadow-lg);
  cursor: pointer;
  transition: var(--transition-all);
  z-index: var(--z-fixed);
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top:hover {
  transform: translateY(-2px) scale(1.05);
  box-shadow: var(--shadow-xl);
}

/* ===== Responsive Design ===== */
@media (min-width: 640px) {
  .footer-content {
    grid-template-columns: repeat(2, 1fr);
  }

  .newsletter-form {
    flex-direction: row;
  }

  .footer-bottom {
    flex-direction: row;
    justify-content: space-between;
    text-align: left;
  }
}

@media (min-width: 768px) {
  .footer-content {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 1024px) {
  .footer-content {
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-10);
  }

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

@media (min-width: 1280px) {
  .footer-content {
    grid-template-columns: 2fr 1fr 1fr 1fr;
  }
}

/* ===== Footer Animations ===== */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.footer-section {
  animation: fadeInUp 0.6s ease-out;
}

.footer-section:nth-child(1) { animation-delay: 0.1s; }
.footer-section:nth-child(2) { animation-delay: 0.2s; }
.footer-section:nth-child(3) { animation-delay: 0.3s; }
.footer-section:nth-child(4) { animation-delay: 0.4s; }