/* Footer, document pages and responsive layout. */
.site-footer {
  margin-top: 3rem;
  padding-block: 3rem 2rem;
  border-top: 1px solid var(--border-glass);
  background: var(--bg-surface);
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 2rem;
  padding-bottom: 3rem;
}
.footer-about p {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-top: 1rem;
}
.footer-heading {
  font-size: 1rem;
  margin-bottom: 1rem;
}
.footer-social {
  margin-top: 1.5rem;
}
.footer-social .footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem 1.2rem;
}
.footer-links {
  list-style: none;
  display: grid;
  gap: 0.65rem;
}
.footer-bottom {
  display: flex;
  justify-content: space-between;
  gap: 1.5rem;
  color: var(--text-muted);
  font-size: 0.75rem;
}
.footer-bottom > div {
  display: flex;
  flex-wrap: wrap;
  gap: 1.2rem;
}
.footer-bottom a {
  color: var(--text-muted);
}
.document {
  max-width: 850px;
  padding-block: 4rem;
  overflow-wrap: anywhere;
}
.document h1 {
  margin-block: 1rem 1.5rem;
}
.document > p {
  color: var(--text-muted);
  margin-bottom: 1.5rem;
}
.document section {
  padding-block: 2rem;
  border-bottom: 1px solid var(--border-glass);
}
.document section h2 {
  font-size: 1.6rem;
  margin-bottom: 1rem;
}
.document section h3 {
  font-size: 1.1rem;
  margin-block: 1.5rem 0.75rem;
}
.document section p {
  color: var(--text-muted);
  margin-bottom: 1rem;
}
.document .pending {
  color: var(--text-muted);
  border-left: 2px solid var(--accent-cyan);
  padding-left: 1rem;
}
.document-toc {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem 1.4rem;
  padding: 1.3rem 0;
}
@media (max-width: 1100px) {
  .nav-links {
    gap: 1rem;
  }
  .nav-links a {
    font-size: 0.8rem;
  }
  .hero-grid, .feature-grid, .contact-panel {
    gap: 2rem;
  }
  .hero-cta .btn {
    padding-inline: 1rem;
  }
  .followup-grid {
    grid-template-columns: 1fr;
  }
  .needs-card {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.5rem;
  }
  .needs-card > div {
    grid-column: 1 / -1;
  }
  .needs-name {
    margin: 0;
  }
  .followup-grid {
    min-height: 490px;
  }
}
@media (max-width: 900px) {
  .nav-links {
    display: none;
  }
  .mobile-menu-toggle {
    display: flex;
  }
  .hero-grid, .feature-grid, .contact-panel {
    grid-template-columns: 1fr;
  }
  .hero-content {
    max-width: 650px;
  }
  .hero-overview {
    max-width: 620px;
    width: 100%;
    margin-inline: auto;
  }
  .hero {
    padding-block: 3.5rem;
  }
  .hero h1 {
    max-width: 600px;
  }
  .followup-section .feature-copy, .followup-demo {
    grid-column: auto;
    grid-row: auto;
  }
  .followup-grid {
    grid-template-columns: 1.6fr 1fr;
    min-height: 340px;
  }
  .needs-card {
    display: block;
  }
  .needs-name {
    margin-block: 1rem;
  }
  .section-padding {
    padding-block: 3.5rem;
  }
}
@media (max-width: 600px) {
  .container {
    padding-inline: 1.2rem;
  }
  html {
    scroll-padding-top: 105px;
  }
  .site-header {
    top: 0.5rem;
    padding-top: 0.5rem;
  }
  .nav-container {
    padding: 0.5rem 0.7rem;
    gap: 0.5rem;
  }
  .brand-logo {
    width: 54px;
    height: 54px;
  }
  .nav-actions {
    gap: 0.5rem;
  }
  .nav-actions .btn {
    font-size: 0.85rem;
    padding: 0.7rem 0.9rem;
  }
  .mobile-nav-overlay {
    inset-inline: 1.2rem;
  }
  .hero {
    padding-top: 2.8rem;
  }
  .hero-content > p {
    font-size: 1rem;
  }
  .hero-cta {
    gap: 0.7rem;
  }
  .hero-cta .btn {
    font-size: 0.9rem;
  }
  .hero-overview {
    padding: 0;
    margin-top: 1rem;
  }
  .hero-poster {
    min-height: 330px;
    padding: 1rem;
  }
  .summary-card {
    position: static;
    width: 100%;
    margin-top: 0.75rem;
  }
  .overview-note {
    position: static;
    margin-top: 1rem;
  }
  .section-header {
    text-align: left;
  }
  .comparison-switch {
    display: flex;
    gap: 0.6rem;
    margin-bottom: 1rem;
  }
  .comparison-switch .btn {
    flex: 1;
    padding: 0.65rem 0.4rem;
    font-size: 0.85rem;
  }
  .comparison-grid {
    grid-template-columns: 1fr;
  }
  .comparison-grid[data-view="original"] [data-side="result"] {
    display: none;
  }
  .comparison-grid[data-view="result"] [data-side="original"] {
    display: none;
  }
  .comparison-caption {
    text-align: left;
  }
  .comparison-card .panel-heading {
    flex-wrap: wrap;
  }
  .demo {
    padding: 1rem;
  }
  .demo .panel-heading {
    flex-wrap: wrap;
  }
  .followup-grid {
    grid-template-columns: 1fr;
  }
  .followup-chat {
    min-height: 280px;
  }
  .needs-card {
    min-height: 155px;
  }
  .needs-card .tag {
    margin-right: 0.3rem;
  }
  .demo-controls {
    gap: 0.3rem;
    flex-wrap: wrap;
    padding-top: 0.4rem;
  }
  .demo-controls .fine-print {
    font-size: 0.7rem;
  }
  .contact-panel {
    padding: 1.4rem;
  }
  .form-row {
    grid-template-columns: 1fr;
    gap: 0;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
  .footer-about {
    grid-column: 1 / -1;
  }
  .footer-bottom {
    flex-direction: column;
  }
}