/* ============================================================
   QUIET INTELLIGENCE — Navigation & Footer
   ============================================================ */

/* ─── Nav shell ─── */
.qi-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(250, 250, 248, 0.80);
  backdrop-filter: blur(20px) saturate(1.4);
  -webkit-backdrop-filter: blur(20px) saturate(1.4);
  border-bottom: 1px solid transparent;
  transition: background var(--duration-normal) ease,
              border-color var(--duration-normal) ease,
              box-shadow var(--duration-normal) ease;
}

.qi-nav--scrolled {
  background: rgba(250, 250, 248, 0.96);
  border-bottom-color: var(--color-border);
  box-shadow: 0 1px 20px rgba(0, 0, 0, 0.04);
}

.qi-nav__inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--space-md);
  height: 68px;
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

/* ─── Logo ─── */
.qi-nav__logo {
  display: flex;
  align-items: center;
  gap: 6px;
  text-decoration: none;
  flex-shrink: 0;
}

.qi-nav__logo-text {
  font-family: var(--font-ui);
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--color-ink);
  letter-spacing: -0.015em;
  display: block;
  line-height: 1;
}

/* ─── Animated Globe (Lottie) ─── */
.qi-nav__globe {
  display: inline-flex;
  width: 52px;
  height: 52px;
  flex-shrink: 0;
  position: relative;
  border-radius: 50%;
  overflow: hidden;
  /* Subtle gold tint via filter */
  filter: sepia(0.3) saturate(1.8) hue-rotate(5deg) brightness(1.05);
  transition: filter var(--duration-normal) ease, transform var(--duration-normal) ease;
}

.qi-nav__logo:hover .qi-nav__globe,
.nav-logo:hover .qi-nav__globe {
  filter: sepia(0.4) saturate(2.2) hue-rotate(5deg) brightness(1.1);
  transform: scale(1.06);
}

.qi-nav__globe svg {
  display: block;
  width: 100%;
  height: 100%;
}

/* Small variant for dashboard / auth */
.qi-nav__globe--sm {
  width: 36px;
  height: 36px;
}

/* ─── Gold accent dot (animated) ─── */
.qi-accent-dot {
  color: var(--color-accent);
  display: inline-block;
  animation: qi-accent-breathe 3s ease-in-out infinite;
}

@keyframes qi-accent-breathe {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%      { opacity: 0.65; transform: scale(1.15); }
}

/* ─── Footer globe ─── */
.qi-footer__globe {
  display: inline-flex;
  width: 32px;
  height: 32px;
  flex-shrink: 0;
  border-radius: 50%;
  overflow: hidden;
  filter: brightness(1.4) sepia(0.2) saturate(1.5) hue-rotate(5deg);
  transition: filter var(--duration-normal) ease;
}

.qi-footer__logo:hover .qi-footer__globe {
  filter: brightness(1.6) sepia(0.3) saturate(2) hue-rotate(5deg);
}

.qi-footer__globe svg {
  display: block;
  width: 100%;
  height: 100%;
}

/* ─── Desktop links ─── */
.qi-nav__links {
  display: none;
  align-items: center;
  gap: 4px;
  flex: 1;
  padding-left: var(--space-sm);
}

@media (min-width: 900px) {
  .qi-nav__links { display: flex; }
}

.qi-nav__link {
  font-family: var(--font-ui);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-ink-soft);
  text-decoration: none;
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  transition: color var(--duration-fast) ease,
              background var(--duration-fast) ease;
  cursor: pointer;
  border: none;
  background: none;
  display: flex;
  align-items: center;
  gap: 4px;
  white-space: nowrap;
}

.qi-nav__link:hover,
.qi-nav__link:focus-visible {
  color: var(--color-ink);
  background: rgba(0, 0, 0, 0.04);
  outline: none;
}

.qi-nav__link--accent {
  color: var(--color-ink);
  font-weight: 600;
}

.qi-nav__link--accent:hover {
  color: var(--color-accent);
  background: rgba(200, 164, 94, 0.06);
}

.qi-nav__ai-dot {
  width: 6px;
  height: 6px;
  background: var(--color-accent);
  border-radius: 50%;
  animation: qi-pulse 2s ease-in-out infinite;
  flex-shrink: 0;
}

@keyframes qi-pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.8); }
}

/* ─── Dropdown ─── */
.qi-nav__item--dropdown {
  position: relative;
}

.qi-nav__dropdown {
  position: absolute;
  top: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%) translateY(-6px);
  min-width: 540px;
  background: var(--color-surface-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  padding: var(--space-md);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--duration-fast) ease, transform var(--duration-fast) ease;
}

.qi-nav__dropdown--right {
  left: auto;
  right: 0;
  transform: translateX(0) translateY(-6px);
  min-width: 200px;
}

.qi-nav__item--open .qi-nav__dropdown {
  opacity: 1;
  pointer-events: all;
  transform: translateX(-50%) translateY(0);
}

.qi-nav__item--open .qi-nav__dropdown--right {
  transform: translateX(0) translateY(0);
}

.qi-nav__dropdown-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-sm);
}

.qi-nav__dropdown-col {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.qi-nav__dropdown-heading {
  font-family: var(--font-ui);
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-ink-muted);
  padding: 0 8px;
  margin-bottom: 6px;
  display: block;
}

.qi-nav__dropdown-item {
  font-family: var(--font-ui);
  font-size: 0.85rem;
  color: var(--color-ink-soft);
  text-decoration: none;
  padding: 6px 8px;
  border-radius: var(--radius-sm);
  transition: color var(--duration-fast), background var(--duration-fast);
  display: block;
}

.qi-nav__dropdown-item:hover {
  color: var(--color-ink);
  background: rgba(0, 0, 0, 0.04);
}

.qi-nav__dropdown-item--danger { color: #dc2626; }
.qi-nav__dropdown-item--danger:hover {
  background: rgba(220, 38, 38, 0.06);
  color: #b91c1c;
}

.qi-nav__dropdown-all {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--color-accent);
  text-decoration: none;
  padding: 6px 8px;
  border-radius: var(--radius-sm);
  transition: opacity var(--duration-fast);
  margin-top: 8px;
}

.qi-nav__dropdown-all:hover { opacity: 0.75; }

.qi-nav__dropdown-divider {
  height: 1px;
  background: var(--color-border);
  margin: 4px 0;
}

.qi-nav__dropdown-user-info {
  padding: 8px 8px 12px;
  border-bottom: 1px solid var(--color-border);
  margin-bottom: 4px;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.qi-nav__dropdown-user-info strong { font-size: 0.875rem; color: var(--color-ink); }
.qi-nav__dropdown-user-info span { font-size: 0.75rem; color: var(--color-ink-muted); }

/* ═══════════════════════════════════════════════════════════════
   MEGA-MENUS — Full-width premium dropdowns
   ═══════════════════════════════════════════════════════════════ */

/* Mega menu container — full-width, premium styling */
.qi-nav__mega {
  position: fixed;
  top: 64px; /* nav height */
  left: 0;
  right: 0;
  width: 100vw;
  max-height: calc(100vh - 64px);
  overflow-y: auto;
  background: var(--color-surface-elevated);
  border-top: 1px solid var(--color-border);
  border-bottom: 2px solid rgba(200,164,94,0.12);
  border-radius: 0;
  box-shadow: 0 8px 32px rgba(0,0,0,0.1);
  padding: var(--space-lg) 0;
  margin: 0;
  /* override .qi-nav__dropdown default transform */
  transform: translateX(0) translateY(-8px) !important;
}

/* When open via click */
.qi-nav__item--open .qi-nav__mega {
  opacity: 1 !important;
  pointer-events: all !important;
  transform: translateX(0) translateY(0) !important;
}

/* Hover activation with delay */
.qi-nav__item--mega:hover .qi-nav__mega,
.qi-nav__item--mega:focus-within .qi-nav__mega {
  opacity: 1;
  pointer-events: all;
  transform: translateX(0) translateY(0) !important;
  transition-delay: 80ms;
}

/* Industries mega-grid (4 columns × 4 rows) */
.qi-nav__mega-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-md);
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

/* Industry item — icon above text, card hover */
.qi-nav__mega-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  padding: 16px 12px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  text-decoration: none;
  color: var(--color-ink);
  background: var(--color-surface);
  transition: all 0.18s ease;
  cursor: pointer;
  text-align: center;
}

.qi-nav__mega-item:hover {
  background: var(--color-surface-warm);
  border-color: var(--color-accent);
  box-shadow: 0 2px 12px rgba(200,164,94,0.1);
  transform: translateY(-2px);
}

/* Industry icon — 36px, gold stroke */
.qi-nav__mega-icon {
  width: 36px;
  height: 36px;
  stroke: var(--color-accent);
  stroke-linecap: round;
  stroke-linejoin: round;
  fill: none;
  flex-shrink: 0;
}

/* Industry content — title + stat */
.qi-nav__mega-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  text-align: center;
}

.qi-nav__mega-title {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-ink);
}

.qi-nav__mega-stat {
  display: block;
  font-size: 0.75rem;
  color: var(--color-ink-muted);
}

/* Footer CTA for mega-menu */
.qi-nav__mega-footer {
  border-top: 1px solid var(--color-border);
  padding: var(--space-md) var(--space-lg) 0;
  max-width: 1280px;
  margin: var(--space-md) auto 0;
}

.qi-nav__mega-cta {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-accent);
  text-decoration: none;
  padding: var(--space-xs) 0;
  transition: opacity var(--duration-fast);
}

.qi-nav__mega-cta:hover {
  opacity: 0.75;
}

/* Simple mega layout for AI Research — 2×2 feature cards */
.qi-nav__mega-simple {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-md);
}

@media (max-width: 900px) {
  .qi-nav__mega-simple { grid-template-columns: 1fr; }
}

.qi-nav__mega-feature-link {
  display: block;
  padding: var(--space-md);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  text-decoration: none;
  transition: all var(--duration-fast) ease;
}

.qi-nav__mega-feature-link:hover {
  border-color: var(--color-accent);
  background: var(--color-surface-warm);
  box-shadow: 0 2px 12px rgba(200, 164, 94, 0.12);
}

.qi-nav__mega-feature-title {
  display: block;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--color-ink);
  margin-bottom: 4px;
}

.qi-nav__mega-feature-desc {
  display: block;
  font-size: 0.8rem;
  color: var(--color-ink-muted);
  line-height: 1.5;
}

/* Hover delay for mega-menus (150ms) */
.qi-nav__item--mega {
  position: relative;
}

.qi-nav__item--mega:hover .qi-nav__mega {
  transition-delay: 150ms;
}

/* Mobile subsections */
.qi-nav__mobile-subsection {
  display: flex;
  flex-direction: column;
  gap: 0;
  padding-left: var(--space-md);
  animation: qi-drawer-in var(--duration-normal) ease;
}

.qi-nav__mobile-link--expand {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.qi-nav__mobile-link--expand svg {
  transition: transform var(--duration-normal) ease;
  flex-shrink: 0;
  margin-left: auto;
}

.qi-nav__mobile-link--expand[aria-expanded="true"] svg {
  transform: rotate(180deg);
}

.qi-nav__mobile-sublink {
  font-family: var(--font-ui);
  font-size: 0.9rem;
  color: var(--color-ink-muted);
  text-decoration: none;
  padding: 10px var(--space-xs);
  border-bottom: none;
  transition: color var(--duration-fast);
  display: block;
}

.qi-nav__mobile-sublink:hover {
  color: var(--color-ink);
}

.qi-nav__mobile-sublink--accent {
  color: var(--color-accent);
  font-weight: 600;
}

/* ─── Auth actions ─── */
.qi-nav__actions {
  display: none;
  align-items: center;
  gap: var(--space-xs);
  margin-left: auto;
  flex-shrink: 0;
}

@media (min-width: 900px) {
  .qi-nav__actions { display: flex; }
}

.qi-nav__user-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 10px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  background: var(--color-surface-elevated);
  cursor: pointer;
  font-size: 0.875rem;
  color: var(--color-ink);
  transition: border-color var(--duration-fast), box-shadow var(--duration-fast);
}

.qi-nav__user-btn:hover {
  border-color: var(--color-ink);
  box-shadow: 0 0 0 2px rgba(0,0,0,0.04);
}

.qi-nav__user-avatar {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--color-ink);
  color: var(--color-surface);
  font-size: 0.75rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

/* ─── Shared button system ─── */
.qi-btn {
  font-family: var(--font-ui);
  font-weight: 500;
  font-size: 0.875rem;
  padding: 10px 22px;
  border-radius: var(--radius-full);
  border: 1.5px solid transparent;
  cursor: pointer;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition: all var(--duration-fast) ease;
  white-space: nowrap;
  line-height: 1.2;
}

.qi-btn--sm { padding: 7px 16px; font-size: 0.8rem; }
.qi-btn--lg { padding: 14px 32px; font-size: 0.95rem; }

.qi-btn--ghost {
  border-color: var(--color-border);
  color: var(--color-ink);
  background: transparent;
}
.qi-btn--ghost:hover {
  border-color: var(--color-ink);
  background: rgba(0,0,0,0.03);
}

.qi-btn--primary {
  background: var(--color-ink);
  color: var(--color-surface);
  border-color: var(--color-ink);
}
.qi-btn--primary:hover {
  background: var(--color-ink-soft);
  border-color: var(--color-ink-soft);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(0,0,0,0.18);
}

.qi-btn--accent {
  background: var(--color-accent);
  color: #fff;
  border-color: var(--color-accent);
}
.qi-btn--accent:hover {
  background: var(--color-accent-hover);
  border-color: var(--color-accent-hover);
  transform: translateY(-1px);
  box-shadow: 0 4px 20px rgba(200,164,94,0.35);
}

.qi-btn--full { width: 100%; }

/* ─── Hamburger ─── */
.qi-nav__hamburger {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  padding: 8px;
  border: none;
  background: none;
  cursor: pointer;
  border-radius: var(--radius-sm);
  margin-left: auto;
  transition: background var(--duration-fast);
}

.qi-nav__hamburger:hover { background: rgba(0,0,0,0.05); }

@media (min-width: 900px) {
  .qi-nav__hamburger { display: none; }
}

.qi-nav__hamburger span {
  display: block;
  height: 1.5px;
  background: var(--color-ink);
  border-radius: 2px;
  transition: transform var(--duration-normal) ease,
              opacity var(--duration-normal) ease;
  transform-origin: center;
}

.qi-nav__hamburger--open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.qi-nav__hamburger--open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.qi-nav__hamburger--open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

/* ─── Mobile drawer ─── */
.qi-nav__mobile {
  display: none;
  padding: var(--space-sm) var(--space-md) var(--space-md);
  border-top: 1px solid var(--color-border);
  background: var(--color-surface-elevated);
}

.qi-nav__mobile--open {
  display: flex;
  flex-direction: column;
  gap: 4px;
  animation: qi-drawer-in var(--duration-normal) ease;
}

@keyframes qi-drawer-in {
  from { opacity: 0; transform: translateY(-8px); }
  to   { opacity: 1; transform: translateY(0); }
}

@media (min-width: 900px) {
  .qi-nav__mobile { display: none !important; }
}

.qi-nav__mobile-link {
  font-family: var(--font-ui);
  font-size: 1rem;
  font-weight: 500;
  color: var(--color-ink-soft);
  text-decoration: none;
  padding: 13px 8px;
  border-bottom: 1px solid var(--color-border);
  transition: color var(--duration-fast);
  display: block;
}

.qi-nav__mobile-link:last-of-type { border-bottom: none; }
.qi-nav__mobile-link:hover { color: var(--color-ink); }
.qi-nav__mobile-link--accent { color: var(--color-ink); font-weight: 600; }

.qi-nav__mobile-actions {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: var(--space-sm);
  padding-top: var(--space-sm);
  border-top: 1px solid var(--color-border);
}

/* ═══════════════════════════════════════════════════════════════
   RESPONSIVE — Mega-menus on smaller screens
   ═══════════════════════════════════════════════════════════════ */

@media (max-width: 1200px) {
  .qi-nav__mega-grid {
    grid-template-columns: repeat(3, 1fr);
    padding: 0 var(--space-md);
  }
}

@media (max-width: 900px) {
  /* Hide mega-menus on mobile — show only in dropdown */
  .qi-nav__mega {
    display: none !important;
  }

  /* Mobile mega items should stack vertically */
  .qi-nav__mega-grid {
    grid-template-columns: 1fr;
    gap: var(--space-sm);
  }

  .qi-nav__mega-item {
    flex-direction: row;
    padding: var(--space-sm);
    gap: var(--space-sm);
    align-items: flex-start;
  }

  .qi-nav__mega-content {
    align-items: flex-start;
    text-align: left;
  }
}

@media (max-width: 640px) {
  .qi-nav__mega-grid {
    grid-template-columns: 1fr;
    padding: 0 var(--space-sm);
  }

  .qi-nav__mega-feature-link {
    padding: var(--space-sm);
  }

  .qi-nav__mega-simple {
    padding: 0 var(--space-sm);
  }
}

/* ─── Body offset for fixed nav ─── */
body { padding-top: 68px; }

/* ─── Shared container ─── */
.qi-container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--space-md);
}

/* ─── Footer ─── */
.qi-footer {
  background: #0a0a0a;
  color: rgba(255,255,255,0.7);
  padding: var(--space-xl) 0 0;
  margin-top: var(--space-2xl);
  position: relative;
  border-top: 2px solid rgba(200,164,94,0.2);
}

.qi-footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, rgba(200,164,94,0.1), rgba(200,164,94,0.3), rgba(200,164,94,0.1));
}

.qi-footer__grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
  gap: var(--space-lg);
  padding-bottom: var(--space-lg);
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

@media (max-width: 900px) {
  .qi-footer__grid { grid-template-columns: 1fr 1fr; gap: var(--space-md); }
}

@media (max-width: 640px) {
  .qi-footer__grid { grid-template-columns: 1fr; }
}

.qi-footer__logo {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  margin-bottom: var(--space-sm);
}

.qi-footer__logo-text {
  font-family: var(--font-ui);
  font-size: 0.95rem;
  font-weight: 500;
  color: #fff;
  letter-spacing: -0.015em;
  line-height: 1;
}

.qi-footer__logo:hover .qi-footer__logo-text {
  color: #fff;
}

.qi-footer__tagline {
  font-size: 0.875rem;
  line-height: 1.7;
  color: rgba(255,255,255,0.55);
  margin-bottom: var(--space-sm);
  max-width: 280px;
}

.qi-footer__social {
  display: flex;
  gap: 8px;
}

.qi-footer__social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: var(--radius-sm);
  color: rgba(255,255,255,0.6);
  text-decoration: none;
  transition: border-color var(--duration-fast), color var(--duration-fast), background var(--duration-fast);
}

.qi-footer__social-link:hover {
  border-color: #c8a45e;
  color: #c8a45e;
  background: rgba(200,164,94,0.1);
}

.qi-footer__heading {
  font-family: var(--font-ui);
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: #c8a45e;
  margin-bottom: var(--space-sm);
}

.qi-footer__link {
  display: block;
  font-size: 0.875rem;
  color: rgba(255,255,255,0.7);
  text-decoration: none;
  padding: 4px 0;
  transition: color var(--duration-fast);
}

.qi-footer__link:hover { color: #c8a45e; }

.qi-footer__link--accent { color: var(--color-accent); font-weight: 500; margin-top: 6px; }

.qi-footer__newsletter-desc {
  font-size: 0.85rem;
  color: rgba(255,255,255,0.55);
  margin-bottom: var(--space-sm);
  line-height: 1.6;
}

.qi-footer__newsletter {
  display: flex;
  gap: 8px;
  align-items: center;
}

.qi-footer__newsletter input {
  flex: 1;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: var(--radius-sm);
  padding: 9px 14px;
  font-family: var(--font-ui);
  font-size: 0.875rem;
  color: #fff;
  transition: border-color var(--duration-fast), background var(--duration-fast);
  outline: none;
}

.qi-footer__newsletter input::placeholder { color: rgba(255,255,255,0.3); }
.qi-footer__newsletter input:focus { border-color: #c8a45e; background: rgba(255,255,255,0.08); }

.qi-footer__newsletter button {
  width: 38px;
  height: 38px;
  background: #c8a45e;
  border: none;
  border-radius: var(--radius-sm);
  color: #0a0a0a;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: background var(--duration-fast), transform var(--duration-fast);
  font-weight: 600;
}

.qi-footer__newsletter button:hover {
  background: #e0c074;
  transform: translateX(2px);
}

.qi-footer__newsletter-status {
  font-size: 0.75rem;
  margin-top: 6px;
  min-height: 1em;
  display: block;
}

.qi-footer__bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-md) 0;
  flex-wrap: wrap;
  gap: var(--space-sm);
  border-top: 1px solid rgba(200,164,94,0.15);
  background: rgba(0,0,0,0.3);
  margin: 0 calc(-1 * var(--space-md));
  padding: var(--space-md) var(--space-md);
}

.qi-footer__copyright { font-size: 0.8rem; color: rgba(255,255,255,0.4); }

.qi-footer__legal { display: flex; gap: var(--space-md); }

.qi-footer__legal-link {
  font-size: 0.8rem;
  color: rgba(255,255,255,0.4);
  text-decoration: none;
  transition: color var(--duration-fast);
}

.qi-footer__legal-link:hover { color: #c8a45e; }

/* ─── Accessibility ─── */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border-width: 0;
}

/* ─── QI Reveal animations ─── */
.qi-reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.qi-reveal.qi-visible {
  opacity: 1;
  transform: translateY(0);
}

.qi-reveal--delay-1 { transition-delay: 0.1s; }
.qi-reveal--delay-2 { transition-delay: 0.2s; }
.qi-reveal--delay-3 { transition-delay: 0.3s; }
.qi-reveal--delay-4 { transition-delay: 0.4s; }
.qi-reveal--delay-5 { transition-delay: 0.5s; }

/* ─── QI Page hero (shared across inner pages) ─── */
.qi-page-hero {
  padding: var(--space-xl) 0 var(--space-lg);
  border-bottom: 1px solid var(--color-border);
  background: var(--color-surface);
}

.qi-page-hero__eyebrow {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-accent);
  margin-bottom: var(--space-sm);
  display: block;
}

.qi-page-hero__title {
  font-family: var(--font-editorial);
  font-size: clamp(2rem, 4vw, 3.5rem);
  font-weight: 500;
  color: var(--color-ink);
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-sm);
}

.qi-page-hero__subtitle {
  font-size: 1.1rem;
  color: var(--color-ink-muted);
  line-height: 1.7;
  max-width: 640px;
}

/* ─── QI Section ─── */
.qi-section {
  padding: var(--space-xl) 0;
}

.qi-section--alt {
  background: var(--color-surface-warm);
}

.qi-section--dark {
  background: var(--color-ink);
  color: var(--color-surface);
}

.qi-section__label {
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-accent);
  margin-bottom: var(--space-sm);
  display: block;
}

.qi-section__title {
  font-family: var(--font-editorial);
  font-size: clamp(1.6rem, 3vw, 2.5rem);
  font-weight: 500;
  color: var(--color-ink);
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-sm);
}

.qi-section--dark .qi-section__title { color: var(--color-surface); }

.qi-section__body {
  font-size: 1.05rem;
  color: var(--color-ink-muted);
  line-height: 1.75;
  max-width: 640px;
}

.qi-section--dark .qi-section__body { color: rgba(250,250,248,0.65); }

/* ─── QI Cards ─── */
.qi-card {
  background: var(--color-surface-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: var(--space-md);
  transition: border-color var(--duration-normal), transform var(--duration-normal), box-shadow var(--duration-normal);
}

.qi-card:hover {
  border-color: var(--color-ink);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.qi-card--link {
  text-decoration: none;
  display: block;
  cursor: pointer;
}

/* ─── QI Grid ─── */
.qi-grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--space-md); }
.qi-grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-md); }
.qi-grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-md); }

@media (max-width: 900px) {
  .qi-grid-3 { grid-template-columns: repeat(2, 1fr); }
  .qi-grid-4 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 640px) {
  .qi-grid-2 { grid-template-columns: 1fr; }
  .qi-grid-3 { grid-template-columns: 1fr; }
  .qi-grid-4 { grid-template-columns: 1fr; }
}

/* ─── QI Form inputs ─── */
.qi-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: var(--space-sm);
}

.qi-label {
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--color-ink-soft);
}

.qi-input {
  font-family: var(--font-ui);
  font-size: 0.9rem;
  color: var(--color-ink);
  background: var(--color-surface-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 11px 14px;
  outline: none;
  transition: border-color var(--duration-fast), box-shadow var(--duration-fast);
  width: 100%;
}

.qi-input:focus {
  border-color: var(--color-ink);
  box-shadow: 0 0 0 3px rgba(0,0,0,0.06);
}

.qi-input::placeholder { color: var(--color-ink-muted); }

.qi-input--error { border-color: #ef4444; }
.qi-input--error:focus { box-shadow: 0 0 0 3px rgba(239,68,68,0.1); }

.qi-error { font-size: 0.78rem; color: #ef4444; }
.qi-hint  { font-size: 0.78rem; color: var(--color-ink-muted); }

/* ─── QI Badge ─── */
.qi-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 3px 10px;
  border-radius: var(--radius-full);
  background: rgba(200,164,94,0.12);
  color: var(--color-accent);
  border: 1px solid rgba(200,164,94,0.25);
}

/* ─── QI Table ─── */
.qi-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

.qi-table th {
  text-align: left;
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-ink-muted);
  padding: 12px 16px;
  border-bottom: 2px solid var(--color-border);
}

.qi-table td {
  padding: 14px 16px;
  color: var(--color-ink-soft);
  border-bottom: 1px solid var(--color-border);
}

.qi-table tr:last-child td { border-bottom: none; }

.qi-table tbody tr {
  transition: background var(--duration-fast);
}

.qi-table tbody tr:hover { background: rgba(0,0,0,0.02); }

/* ─── QI Pagination ─── */
.qi-pagination {
  display: flex;
  align-items: center;
  gap: 4px;
  justify-content: center;
  padding: var(--space-lg) 0;
}

.qi-pagination__btn {
  min-width: 38px;
  height: 38px;
  padding: 0 12px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-surface-elevated);
  color: var(--color-ink-soft);
  font-size: 0.875rem;
  font-family: var(--font-ui);
  cursor: pointer;
  transition: all var(--duration-fast);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.qi-pagination__btn:hover {
  border-color: var(--color-ink);
  color: var(--color-ink);
}

.qi-pagination__btn--active {
  background: var(--color-ink);
  color: var(--color-surface);
  border-color: var(--color-ink);
}

/* ─── QI Breadcrumb ─── */
.qi-breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  color: var(--color-ink-muted);
  margin-bottom: var(--space-sm);
  flex-wrap: wrap;
}

.qi-breadcrumb a {
  color: var(--color-ink-muted);
  text-decoration: none;
  transition: color var(--duration-fast);
}

.qi-breadcrumb a:hover { color: var(--color-ink); }

.qi-breadcrumb__sep {
  color: var(--color-border);
}

/* ─── QI Alert ─── */
.qi-alert {
  padding: 14px 18px;
  border-radius: var(--radius-sm);
  border-left: 3px solid;
  font-size: 0.9rem;
  margin-bottom: var(--space-sm);
  line-height: 1.6;
}

.qi-alert--info    { background: rgba(59,130,246,0.06);  border-color: #3b82f6; color: #1e40af; }
.qi-alert--success { background: rgba(16,185,129,0.06);  border-color: #10b981; color: #065f46; }
.qi-alert--warning { background: rgba(245,158,11,0.06);  border-color: #f59e0b; color: #92400e; }
.qi-alert--error   { background: rgba(239,68,68,0.06);   border-color: #ef4444; color: #991b1b; }

nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(250, 250, 248, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--color-border);
  transition: background var(--duration-fast) ease, border-color var(--duration-fast) ease;
}

nav.sticky-nav-scrolled {
  background: rgba(250, 250, 248, 0.95);
  box-shadow: var(--shadow-sm);
}

.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-md);
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

/* Logo */
.nav-logo {
  display: flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-ui);
  font-weight: 500;
  font-size: 1rem;
  letter-spacing: -0.015em;
  color: var(--color-ink);
  text-decoration: none;
  transition: opacity var(--duration-fast) ease;
}

.nav-logo:hover {
  opacity: 0.85;
}

.nav-logo .accent {
  color: var(--color-accent);
  display: inline-block;
  animation: qi-accent-breathe 3s ease-in-out infinite;
}

/* Nav Links */
.nav-links {
  display: flex;
  gap: var(--space-md);
  align-items: center;
  list-style: none;
}

.nav-links a {
  font-size: 0.85rem;
  font-weight: 400;
  color: var(--color-ink-muted);
  text-decoration: none;
  letter-spacing: 0.01em;
  transition: color var(--duration-fast) ease;
  padding: 8px 12px;
  border-radius: var(--radius-sm);
}

.nav-links a:hover {
  color: var(--color-ink);
  background: var(--color-surface-warm);
}

/* CTA Button in Nav */
.nav-cta {
  background: var(--color-ink) !important;
  color: var(--color-surface) !important;
  padding: 8px 20px !important;
  border-radius: var(--radius-full) !important;
  font-weight: 500 !important;
  font-size: 0.82rem !important;
  transition: opacity var(--duration-fast) ease !important;
  margin-left: 8px;
}

.nav-cta:hover {
  opacity: 0.85 !important;
  background: var(--color-ink-soft) !important;
}

/* Hamburger Menu (hidden on desktop) */
.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 4px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 8px;
}

.nav-hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-ink);
  border-radius: 1px;
  transition: all var(--duration-fast) ease;
}

.nav-hamburger.active span:nth-child(1) {
  transform: rotate(45deg) translate(8px, 8px);
}

.nav-hamburger.active span:nth-child(2) {
  opacity: 0;
}

.nav-hamburger.active span:nth-child(3) {
  transform: rotate(-45deg) translate(7px, -7px);
}

/* Mobile Menu */
.nav-mobile-menu {
  position: fixed;
  top: 64px;
  left: 0;
  right: 0;
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  padding: var(--space-md);
  display: none;
  flex-direction: column;
  gap: var(--space-sm);
  z-index: 99;
  max-height: calc(100vh - 64px);
  overflow-y: auto;
}

.nav-mobile-menu.active {
  display: flex;
}

.nav-mobile-menu a {
  padding: 12px;
  border-radius: var(--radius-sm);
  transition: background var(--duration-fast) ease;
}

.nav-mobile-menu a:hover {
  background: var(--color-surface-warm);
}

/* Responsive */
@media (max-width: 768px) {
  .nav-links {
    display: none;
  }

  .nav-hamburger {
    display: flex;
  }

  .nav-inner {
    height: 56px;
  }
}

/* Search bar variant (optional for future) */
.nav-search {
  flex: 1;
  max-width: 400px;
  margin: 0 var(--space-md);
}

.nav-search input {
  width: 100%;
  padding: 8px 12px;
  font-size: 0.85rem;
  background: var(--color-surface-warm);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  transition: border-color var(--duration-fast) ease, background var(--duration-fast) ease;
}

.nav-search input:focus {
  background: var(--color-surface-elevated);
  border-color: var(--color-accent);
}

@media (max-width: 900px) {
  .nav-search {
    display: none;
  }

  .nav-links a:not(.nav-cta) {
    display: none;
  }
}