/* ==========================================================================
   Mega-Footer Layout & Styling
   ========================================================================== */

.site-footer {
  background-color: hsl(227, 22%, 9%); /* Dark Neutral: #12141C */
  color: hsl(227, 15%, 80%);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: var(--space-3xl) 0 0 0;
  font-family: var(--font-body);
}

.footer-container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-xl) var(--space-3xl) var(--space-xl);
  display: grid;
  grid-template-columns: 2fr repeat(4, 1fr);
  gap: var(--space-2xl);
}

/* Brand Column */
.brand-column {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.site-footer .footer-brand {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  text-decoration: none;
  font-family: var(--font-heading);
  font-size: 22px;
  font-weight: 800;
  color: white;
}

.site-footer .brand-logo-icon {
  width: 26px;
  height: 26px;
  color: var(--color-primary);
}

.footer-tagline {
  font-size: 14px;
  line-height: 1.6;
  color: hsl(142, 10%, 75%);
}

.footer-disclaimer-box {
  background-color: rgba(255, 255, 255, 0.03);
  border-left: 3px solid var(--color-primary);
  padding: var(--space-md);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-size: 12px;
  line-height: 1.5;
  color: hsl(142, 10%, 65%);
}

/* Link Columns */
.footer-column h4 {
  font-family: var(--font-heading);
  font-size: 15px;
  font-weight: 700;
  color: white;
  margin-bottom: var(--space-lg);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.footer-links a {
  text-decoration: none;
  font-size: 14px;
  color: hsl(142, 10%, 75%);
  transition: var(--transition-smooth);
}

.footer-links a:hover {
  color: var(--color-accent);
  padding-left: var(--space-xs);
}

/* Full Directory (all cities / all materials) */
.footer-directory {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-xl) var(--space-2xl) var(--space-xl);
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}
.footer-directory:first-of-type {
  padding-top: var(--space-2xl);
}
.footer-directory .footer-title {
  font-family: var(--font-heading);
  font-size: 15px;
  font-weight: 700;
  color: #fff;
  margin-bottom: var(--space-lg);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}
.footer-directory-links {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm) var(--space-lg);
}
.footer-directory-links a {
  text-decoration: none;
  font-size: 13.5px;
  color: hsl(142, 10%, 72%);
  transition: var(--transition-smooth);
}
.footer-directory-links a:hover {
  color: var(--color-accent);
}

/* Footer Bottom Bar */
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: var(--space-xl) 0;
  background-color: rgba(0, 0, 0, 0.2);
}

.footer-bottom-container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-xl);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-md);
}

.copyright-text {
  font-size: 13px;
  color: hsl(142, 10%, 60%);
}

.footer-bottom-links {
  display: flex;
  align-items: center;
}

.back-to-top {
  text-decoration: none;
  font-size: 13px;
  font-weight: 600;
  color: hsl(142, 10%, 75%);
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  transition: var(--transition-smooth);
}

.back-to-top:hover {
  color: var(--color-accent);
}

.back-to-top svg {
  width: 14px;
  height: 14px;
}

/* ==========================================================================
   Responsive Adaptations
   ========================================================================== */

@media (max-width: 1024px) {
  .footer-container {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-xl);
  }
  
  .brand-column {
    grid-column: span 2;
    margin-bottom: var(--space-lg);
  }
}

@media (max-width: 640px) {
  .footer-container {
    grid-template-columns: 1fr;
    gap: var(--space-xl);
    padding-bottom: var(--space-xl);
  }
  
  .brand-column {
    grid-column: span 1;
  }
  
  .footer-bottom-container {
    flex-direction: column;
    text-align: center;
    gap: var(--space-md);
  }
}