/* ============================================================
 * Aivius — Global Design System
 * Version: 1.0.0
 * Light theme · Indigo+Cyan+Emerald · Mobile-first
 * ============================================================ */

/* ---------- 1. Design Tokens ---------- */
:root {
  /* Brand */
  --c-indigo: #4F46E5;
  --c-indigo-dark: #4338CA;
  --c-indigo-light: #818CF8;
  --c-indigo-50: #EEF2FF;
  --c-indigo-100: #E0E7FF;
  --c-cyan: #06B6D4;
  --c-cyan-dark: #0891B2;
  --c-cyan-light: #67E8F9;
  --c-cyan-50: #ECFEFF;
  --c-emerald: #10B981;
  --c-emerald-dark: #059669;
  --c-emerald-50: #ECFDF5;

  /* Neutrals */
  --c-ink: #0F172A;
  --c-ink-2: #1E293B;
  --c-ink-3: #334155;
  --c-ink-4: #475569;
  --c-ink-5: #64748B;
  --c-ink-6: #94A3B8;
  --c-line: #E2E8F0;
  --c-line-2: #F1F5F9;
  --c-bg: #FFFFFF;
  --c-bg-2: #F8FAFC;
  --c-bg-3: #F1F5F9;

  /* Status */
  --c-red: #EF4444;
  --c-amber: #F59E0B;
  --c-green: #10B981;

  /* Gradient */
  --grad-brand: linear-gradient(135deg, #4F46E5 0%, #06B6D4 100%);
  --grad-brand-soft: linear-gradient(135deg, #EEF2FF 0%, #ECFEFF 100%);
  --grad-ink: linear-gradient(180deg, #0F172A 0%, #1E293B 100%);

  /* Typography */
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif, "Apple Color Emoji", "Segoe UI Emoji";
  --font-mono: "SF Mono", Monaco, "Cascadia Code", "Roboto Mono", Consolas, monospace;

  /* Spacing scale */
  --s-1: 4px;
  --s-2: 8px;
  --s-3: 12px;
  --s-4: 16px;
  --s-5: 20px;
  --s-6: 24px;
  --s-8: 32px;
  --s-10: 40px;
  --s-12: 48px;
  --s-16: 64px;
  --s-20: 80px;
  --s-24: 96px;

  /* Radius */
  --r-sm: 6px;
  --r-md: 10px;
  --r-lg: 16px;
  --r-xl: 24px;
  --r-full: 9999px;

  /* Shadow */
  --sh-sm: 0 1px 2px rgba(15,23,42,.06), 0 1px 1px rgba(15,23,42,.04);
  --sh-md: 0 4px 8px rgba(15,23,42,.06), 0 2px 4px rgba(15,23,42,.04);
  --sh-lg: 0 12px 24px rgba(15,23,42,.08), 0 4px 8px rgba(15,23,42,.04);
  --sh-xl: 0 24px 48px rgba(15,23,42,.12), 0 8px 16px rgba(15,23,42,.06);
  --sh-glow: 0 0 0 4px rgba(79,70,229,.12);

  /* Layout */
  --container: 1200px;
  --container-narrow: 768px;
  --container-wide: 1360px;

  /* Transition */
  --t-fast: 150ms cubic-bezier(.4,0,.2,1);
  --t: 250ms cubic-bezier(.4,0,.2,1);
  --t-slow: 400ms cubic-bezier(.4,0,.2,1);
}

/* ---------- 2. Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; padding: 0; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
html:focus-within { scroll-behavior: smooth; }
body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  color: var(--c-ink-2);
  background: var(--c-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}
img, svg, video { display: block; max-width: 100%; height: auto; }
input, button, textarea, select { font: inherit; color: inherit; }
button { background: none; border: none; cursor: pointer; }
a { color: var(--c-indigo); text-decoration: none; transition: color var(--t-fast); }
a:hover { color: var(--c-indigo-dark); }
ul, ol { list-style: none; }
hr { border: none; border-top: 1px solid var(--c-line); margin: var(--s-8) 0; }

/* ---------- 3. Typography ---------- */
h1, h2, h3, h4, h5, h6 {
  color: var(--c-ink);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
}
h1 { font-size: clamp(2rem, 5vw, 3.5rem); line-height: 1.1; }
h2 { font-size: clamp(1.75rem, 4vw, 2.5rem); }
h3 { font-size: clamp(1.35rem, 3vw, 1.875rem); }
h4 { font-size: 1.25rem; }
h5 { font-size: 1.125rem; }
h6 { font-size: 1rem; }
p { margin-bottom: var(--s-4); }
p:last-child { margin-bottom: 0; }
strong, b { font-weight: 600; color: var(--c-ink); }
em, i { font-style: italic; }
code, pre { font-family: var(--font-mono); font-size: 0.9em; }
code { background: var(--c-bg-3); padding: 2px 6px; border-radius: var(--r-sm); color: var(--c-indigo-dark); }
pre { background: var(--c-ink); color: #E2E8F0; padding: var(--s-4); border-radius: var(--r-md); overflow-x: auto; margin: var(--s-4) 0; }
pre code { background: none; color: inherit; padding: 0; }
blockquote {
  border-left: 4px solid var(--c-indigo);
  padding: var(--s-2) var(--s-4);
  margin: var(--s-4) 0;
  background: var(--c-indigo-50);
  border-radius: 0 var(--r-md) var(--r-md) 0;
  color: var(--c-ink-3);
  font-style: italic;
}

/* ---------- 4. Layout ---------- */
.container { max-width: var(--container); margin: 0 auto; padding: 0 var(--s-6); width: 100%; }
.container-narrow { max-width: var(--container-narrow); margin: 0 auto; padding: 0 var(--s-6); }
.container-wide { max-width: var(--container-wide); margin: 0 auto; padding: 0 var(--s-6); }
.section { padding: var(--s-20) 0; }
.section-sm { padding: var(--s-12) 0; }
.section-lg { padding: var(--s-24) 0; }
.section-tight { padding: var(--s-12) 0; }
.grid { display: grid; gap: var(--s-6); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.grid-auto { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.flex { display: flex; gap: var(--s-4); }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.items-start { align-items: flex-start; }
.items-end { align-items: flex-end; }
.justify-between { justify-content: space-between; }
.justify-center { justify-content: center; }
.flex-wrap { flex-wrap: wrap; }
.flex-1 { flex: 1; }
.text-center { text-align: center; }
.text-right { text-align: right; }
.mt-0 { margin-top: 0; } .mt-2 { margin-top: var(--s-2); } .mt-4 { margin-top: var(--s-4); }
.mt-6 { margin-top: var(--s-6); } .mt-8 { margin-top: var(--s-8); } .mt-12 { margin-top: var(--s-12); }
.mb-0 { margin-bottom: 0; } .mb-2 { margin-bottom: var(--s-2); } .mb-4 { margin-bottom: var(--s-4); }
.mb-6 { margin-bottom: var(--s-6); } .mb-8 { margin-bottom: var(--s-8); } .mb-12 { margin-bottom: var(--s-12); }
.gap-2 { gap: var(--s-2); } .gap-4 { gap: var(--s-4); } .gap-6 { gap: var(--s-6); } .gap-8 { gap: var(--s-8); }
.hidden { display: none; }
.mx-auto { margin-left: auto; margin-right: auto; }
.rounded { border-radius: var(--r-md); }
.rounded-lg { border-radius: var(--r-lg); }
.rounded-full { border-radius: var(--r-full); }
.overflow-hidden { overflow: hidden; }
.relative { position: relative; }
.absolute { position: absolute; }

@media (max-width: 900px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .grid-3.keep-2 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
  .grid-3.keep-2 { grid-template-columns: 1fr; }
}

/* ---------- 5. Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--s-2);
  padding: 12px 24px;
  font-weight: 600;
  font-size: 1rem;
  line-height: 1;
  border-radius: var(--r-md);
  border: 1.5px solid transparent;
  cursor: pointer;
  transition: all var(--t-fast);
  white-space: nowrap;
  text-decoration: none;
}
.btn-primary {
  background: var(--c-indigo);
  color: white;
  box-shadow: var(--sh-sm);
}
.btn-primary:hover {
  background: var(--c-indigo-dark);
  color: white;
  transform: translateY(-1px);
  box-shadow: var(--sh-md);
}
.btn-gradient {
  background: var(--grad-brand);
  color: white;
  box-shadow: var(--sh-md);
}
.btn-gradient:hover {
  color: white;
  transform: translateY(-1px);
  box-shadow: var(--sh-lg);
}
.btn-secondary {
  background: white;
  color: var(--c-ink-2);
  border-color: var(--c-line);
}
.btn-secondary:hover {
  background: var(--c-bg-2);
  border-color: var(--c-ink-6);
  color: var(--c-ink);
}
.btn-ghost {
  background: transparent;
  color: var(--c-ink-3);
}
.btn-ghost:hover { background: var(--c-bg-2); color: var(--c-ink); }
.btn-lg { padding: 16px 32px; font-size: 1.125rem; }
.btn-sm { padding: 8px 16px; font-size: 0.875rem; }
.btn-block { display: flex; width: 100%; }
.btn .arrow { transition: transform var(--t-fast); }
.btn:hover .arrow { transform: translateX(3px); }

/* ---------- 6. Badges & Chips ---------- */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  font-size: 0.75rem;
  font-weight: 600;
  border-radius: var(--r-full);
  background: var(--c-indigo-50);
  color: var(--c-indigo-dark);
  letter-spacing: 0.02em;
  text-transform: uppercase;
}
.badge-cyan { background: var(--c-cyan-50); color: var(--c-cyan-dark); }
.badge-emerald { background: var(--c-emerald-50); color: var(--c-emerald-dark); }
.badge-amber { background: #FEF3C7; color: #92400E; }
.badge-red { background: #FEE2E2; color: #991B1B; }
.badge-ink { background: var(--c-ink); color: white; }
.badge-lg { padding: 6px 16px; font-size: 0.875rem; }
.chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  background: white;
  border: 1px solid var(--c-line);
  border-radius: var(--r-full);
  font-size: 0.875rem;
  color: var(--c-ink-3);
  transition: all var(--t-fast);
}
.chip:hover { border-color: var(--c-indigo); color: var(--c-indigo); }

/* ---------- 7. Navigation ---------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,0.85);
  backdrop-filter: saturate(180%) blur(12px);
  -webkit-backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid transparent;
  transition: all var(--t);
}
.nav.scrolled {
  background: rgba(255,255,255,0.95);
  border-bottom-color: var(--c-line);
  box-shadow: var(--sh-sm);
}
.nav-inner {
  max-width: var(--container-wide);
  margin: 0 auto;
  padding: 0 var(--s-6);
  height: 68px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--s-6);
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: var(--s-2);
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--c-ink);
  letter-spacing: -0.02em;
}
.nav-logo:hover { color: var(--c-ink); }
.nav-logo-mark {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  background: url('/assets/img/favicon.svg') center / contain no-repeat;
  display: inline-block;
  text-indent: -9999px;
  overflow: hidden;
  flex-shrink: 0;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: var(--s-6);
  flex: 1;
  margin-left: var(--s-8);
}
.nav-link {
  color: var(--c-ink-3);
  font-size: 0.95rem;
  font-weight: 500;
  padding: var(--s-2) 0;
  position: relative;
  transition: color var(--t-fast);
}
.nav-link:hover { color: var(--c-ink); }
.nav-link.has-dropdown::after {
  content: "\25BE";
  font-size: 0.7em;
  margin-left: 4px;
  color: var(--c-ink-5);
}
.nav-link-highlight {
  color: var(--c-indigo) !important;
  font-weight: 700;
  position: relative;
}
.nav-link-highlight::after {
  content: "";
  position: absolute;
  bottom: -4px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--c-indigo);
  border-radius: 1px;
}
.nav-cta { display: flex; align-items: center; gap: var(--s-3); }
.nav-menu-btn {
  display: none;
  width: 40px;
  height: 40px;
  border-radius: var(--r-sm);
  align-items: center;
  justify-content: center;
}
.nav-menu-btn svg { width: 22px; height: 22px; }

@media (max-width: 900px) {
  .nav-links, .nav-cta .btn-secondary { display: none; }
  .nav-menu-btn { display: flex; }
  .nav-links.open {
    display: flex;
    position: absolute;
    top: 68px;
    left: 0;
    right: 0;
    background: white;
    flex-direction: column;
    padding: var(--s-4) var(--s-6);
    border-bottom: 1px solid var(--c-line);
    box-shadow: var(--sh-lg);
    margin-left: 0;
    gap: var(--s-4);
  }
  .nav-links.open .nav-link { padding: var(--s-2) 0; }
  .nav-links.open .nav-dropdown { position: static; opacity: 1; visibility: visible; box-shadow: none; }
}

/* Dropdown */
.nav-dropdown {
  position: absolute;
  top: 100%;
  left: 0;
  background: white;
  border: 1px solid var(--c-line);
  border-radius: var(--r-lg);
  box-shadow: var(--sh-lg);
  padding: var(--s-3);
  min-width: 280px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: all var(--t-fast);
}
.nav-item { position: relative; }
.nav-item:hover .nav-dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.nav-dropdown a {
  display: flex;
  padding: var(--s-3);
  border-radius: var(--r-sm);
  color: var(--c-ink-3);
  gap: var(--s-3);
}
.nav-dropdown a:hover { background: var(--c-bg-2); color: var(--c-indigo); }
.nav-dropdown-title { font-weight: 600; color: var(--c-ink); font-size: 0.9rem; }
.nav-dropdown-desc { font-size: 0.8rem; color: var(--c-ink-5); margin-top: 2px; }

/* ---------- 8. Hero ---------- */
.hero {
  position: relative;
  padding: var(--s-20) 0 var(--s-16);
  overflow: hidden;
  background: var(--grad-brand-soft);
}
.hero::before {
  content: "";
  position: absolute;
  top: -200px;
  right: -200px;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(79,70,229,.12) 0%, transparent 70%);
  pointer-events: none;
}
.hero::after {
  content: "";
  position: absolute;
  bottom: -200px;
  left: -200px;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(6,182,212,.10) 0%, transparent 70%);
  pointer-events: none;
}
.hero-inner { position: relative; z-index: 1; max-width: 820px; }
.hero h1 { margin-bottom: var(--s-5); }
.hero-subtitle {
  font-size: 1.25rem;
  color: var(--c-ink-4);
  max-width: 640px;
  margin-bottom: var(--s-8);
  line-height: 1.6;
}
.hero-ctas { display: flex; gap: var(--s-3); flex-wrap: wrap; margin-bottom: var(--s-6); }
.hero-trust { display: flex; align-items: center; gap: var(--s-4); color: var(--c-ink-5); font-size: 0.875rem; flex-wrap: wrap; }
.hero-trust .star { color: #F59E0B; }
.hero-visual {
  margin-top: var(--s-12);
  position: relative;
  z-index: 1;
}

/* ---------- 9. Cards ---------- */
.card {
  background: white;
  border: 1px solid var(--c-line);
  border-radius: var(--r-lg);
  padding: var(--s-6);
  transition: all var(--t);
}
.card:hover { box-shadow: var(--sh-lg); border-color: var(--c-indigo-light); transform: translateY(-2px); }
.card-feature {
  display: flex;
  flex-direction: column;
  gap: var(--s-3);
}
.card-feature-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--r-md);
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--c-indigo-50);
  color: var(--c-indigo);
  font-size: 1.5rem;
}
.card-feature-icon.cyan { background: var(--c-cyan-50); color: var(--c-cyan-dark); }
.card-feature-icon.emerald { background: var(--c-emerald-50); color: var(--c-emerald-dark); }
.card-feature-icon.amber { background: #FEF3C7; color: #92400E; }
.card-feature-icon.purple { background: #F3E8FF; color: #7C3AED; }
.card-feature h3 { font-size: 1.125rem; }
.card-feature p { color: var(--c-ink-4); font-size: 0.95rem; }

/* Stat card */
.card-stat {
  text-align: center;
  padding: var(--s-8) var(--s-4);
}
.card-stat .num {
  font-size: 2.5rem;
  font-weight: 800;
  background: var(--grad-brand);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  letter-spacing: -0.02em;
  line-height: 1;
}
.card-stat .label { color: var(--c-ink-5); font-size: 0.9rem; margin-top: var(--s-2); }

/* ---------- 10. Sections ---------- */
.section-header { text-align: center; max-width: 720px; margin: 0 auto var(--s-12); }
.section-header h2 { margin-bottom: var(--s-3); }
.section-header p { font-size: 1.125rem; color: var(--c-ink-4); }
.section-eyebrow {
  display: inline-block;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--c-indigo);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--s-3);
}

/* ---------- 11. Pricing ---------- */
.pricing-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--s-5); }
@media (max-width: 1024px) { .pricing-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) { .pricing-grid { grid-template-columns: 1fr; } }
.price-card {
  background: white;
  border: 1.5px solid var(--c-line);
  border-radius: var(--r-lg);
  padding: var(--s-6);
  display: flex;
  flex-direction: column;
  position: relative;
  transition: all var(--t);
}
.price-card:hover { border-color: var(--c-indigo-light); box-shadow: var(--sh-lg); }
.price-card.featured {
  border-color: var(--c-indigo);
  box-shadow: var(--sh-lg);
  background: linear-gradient(180deg, #FFFFFF 0%, var(--c-indigo-50) 100%);
}
.price-card.featured::before {
  content: "Most Popular";
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--c-indigo);
  color: white;
  padding: 4px 14px;
  border-radius: var(--r-full);
  font-size: 0.75rem;
  font-weight: 600;
  white-space: nowrap;
}
.price-name { font-size: 1.125rem; font-weight: 700; color: var(--c-ink); }
.price-desc { color: var(--c-ink-5); font-size: 0.875rem; margin-top: var(--s-1); margin-bottom: var(--s-4); }
.price-amount { display: flex; align-items: baseline; gap: 4px; margin-bottom: var(--s-1); }
.price-amount .num { font-size: 2.5rem; font-weight: 800; color: var(--c-ink); letter-spacing: -0.02em; }
.price-amount .per { color: var(--c-ink-5); font-size: 0.95rem; }
.price-period { color: var(--c-ink-5); font-size: 0.875rem; margin-bottom: var(--s-5); }
.price-features { flex: 1; margin-bottom: var(--s-5); }
.price-features li {
  display: flex;
  gap: var(--s-2);
  padding: var(--s-2) 0;
  font-size: 0.9rem;
  color: var(--c-ink-3);
  border-top: 1px solid var(--c-line-2);
}
.price-features li:first-child { border-top: none; }
.price-features li::before {
  content: "✓";
  color: var(--c-emerald);
  font-weight: 700;
  flex-shrink: 0;
}
.price-features li.no::before { content: "—"; color: var(--c-ink-6); }
.price-toggle { display: flex; align-items: center; justify-content: center; gap: var(--s-3); margin-bottom: var(--s-8); }
.price-toggle-switch {
  width: 48px;
  height: 26px;
  background: var(--c-line);
  border-radius: var(--r-full);
  position: relative;
  cursor: pointer;
  transition: background var(--t-fast);
  border: none;
}
.price-toggle-switch.on { background: var(--c-indigo); }
.price-toggle-switch::after {
  content: "";
  position: absolute;
  top: 3px;
  left: 3px;
  width: 20px;
  height: 20px;
  background: white;
  border-radius: 50%;
  transition: transform var(--t-fast);
  box-shadow: var(--sh-sm);
}
.price-toggle-switch.on::after { transform: translateX(22px); }

/* ---------- 12. FAQ ---------- */
.faq-item {
  border: 1px solid var(--c-line);
  border-radius: var(--r-md);
  margin-bottom: var(--s-3);
  background: white;
  overflow: hidden;
  transition: all var(--t-fast);
}
.faq-item.open { border-color: var(--c-indigo-light); box-shadow: var(--sh-sm); }
.faq-q {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--s-4) var(--s-5);
  font-weight: 600;
  color: var(--c-ink);
  text-align: left;
  font-size: 1rem;
  background: none;
  border: none;
  cursor: pointer;
}
.faq-q::after {
  content: "+";
  font-size: 1.5rem;
  color: var(--c-ink-5);
  transition: transform var(--t-fast);
  flex-shrink: 0;
  margin-left: var(--s-4);
}
.faq-item.open .faq-q::after { transform: rotate(45deg); color: var(--c-indigo); }
.faq-a {
  padding: 0 var(--s-5);
  max-height: 0;
  overflow: hidden;
  color: var(--c-ink-4);
  transition: all var(--t);
}
.faq-item.open .faq-a { padding: 0 var(--s-5) var(--s-5); max-height: 600px; }

/* ---------- 13. Footer ---------- */
.footer {
  background: var(--c-ink);
  color: #CBD5E1;
  padding: var(--s-16) 0 var(--s-8);
  margin-top: var(--s-20);
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr repeat(4, 1fr);
  gap: var(--s-8);
  margin-bottom: var(--s-12);
}
@media (max-width: 900px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 500px) { .footer-grid { grid-template-columns: 1fr; } }
.footer-brand { grid-column: span 1; }
.footer-brand .nav-logo { color: white; margin-bottom: var(--s-3); }
.footer-brand p { color: #94A3B8; font-size: 0.9rem; max-width: 280px; }
.footer-col h5 { color: white; font-size: 0.875rem; text-transform: uppercase; letter-spacing: 0.05em; margin-bottom: var(--s-4); }
.footer-col ul li { margin-bottom: var(--s-2); }
.footer-col a { color: #CBD5E1; font-size: 0.9rem; }
.footer-col a:hover { color: white; }
.footer-bottom {
  border-top: 1px solid #1E293B;
  padding-top: var(--s-6);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--s-4);
  flex-wrap: wrap;
  color: #64748B;
  font-size: 0.85rem;
}
.footer-social { display: flex; gap: var(--s-3); }
.footer-social a {
  width: 36px;
  height: 36px;
  border-radius: var(--r-sm);
  background: #1E293B;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #94A3B8;
}
.footer-social a:hover { background: var(--c-indigo); color: white; }
.footer-social svg { width: 18px; height: 18px; }

/* ---------- 14. Breadcrumb ---------- */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--s-2);
  font-size: 0.875rem;
  color: var(--c-ink-5);
  padding: var(--s-4) 0;
  flex-wrap: wrap;
}
.breadcrumb a { color: var(--c-ink-5); }
.breadcrumb a:hover { color: var(--c-indigo); }
.breadcrumb-sep { color: var(--c-ink-6); }
.breadcrumb-current { color: var(--c-ink-3); font-weight: 500; }

/* ---------- 15. Prose (blog/guide content) ---------- */
.prose { max-width: 760px; margin: 0 auto; }
.prose h1, .prose h2, .prose h3 { margin-top: var(--s-10); margin-bottom: var(--s-4); }
.prose h1 { margin-top: 0; }
.prose h2 { padding-bottom: var(--s-2); border-bottom: 1px solid var(--c-line); }
.prose p { margin-bottom: var(--s-5); color: var(--c-ink-3); line-height: 1.75; }
.prose ul, .prose ol { margin: var(--s-4) 0; padding-left: var(--s-6); color: var(--c-ink-3); }
.prose li { margin-bottom: var(--s-2); line-height: 1.7; }
.prose ul li::marker { color: var(--c-indigo); }
.prose ol li::marker { color: var(--c-indigo); font-weight: 600; }
.prose img { border-radius: var(--r-lg); margin: var(--s-6) 0; box-shadow: var(--sh-md); }
.prose a { color: var(--c-indigo); text-decoration: underline; text-decoration-color: var(--c-indigo-light); text-underline-offset: 3px; }
.prose a:hover { text-decoration-color: var(--c-indigo); }
.prose h2::before { content: ""; display: block; height: 0; margin-top: -100px; padding-top: 100px; }
.prose table { width: 100%; border-collapse: collapse; margin: var(--s-6) 0; font-size: 0.95rem; }
.prose table th, .prose table td { padding: var(--s-3) var(--s-4); border: 1px solid var(--c-line); text-align: left; }
.prose table th { background: var(--c-bg-2); font-weight: 600; color: var(--c-ink); }
.prose table tr:nth-child(even) { background: var(--c-bg-2); }

/* ---------- 16. Newsletter & CTA ---------- */
.cta-band {
  background: var(--grad-brand);
  border-radius: var(--r-xl);
  padding: var(--s-12) var(--s-10);
  color: white;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.cta-band h2 { color: white; margin-bottom: var(--s-3); }
.cta-band p { color: rgba(255,255,255,0.9); margin-bottom: var(--s-6); font-size: 1.125rem; }
.cta-band .btn-primary { background: white; color: var(--c-indigo); }
.cta-band .btn-primary:hover { background: var(--c-bg-2); color: var(--c-indigo-dark); }
.cta-band .btn-secondary { background: transparent; color: white; border-color: rgba(255,255,255,0.4); }
.cta-band .btn-secondary:hover { background: rgba(255,255,255,0.1); border-color: white; }

/* ---------- 17. Forms ---------- */
.form-group { margin-bottom: var(--s-4); }
.form-label { display: block; font-weight: 500; color: var(--c-ink-2); margin-bottom: var(--s-2); font-size: 0.9rem; }
.form-input, .form-textarea, .form-select {
  width: 100%;
  padding: 12px 16px;
  border: 1.5px solid var(--c-line);
  border-radius: var(--r-md);
  font-size: 1rem;
  background: white;
  color: var(--c-ink);
  transition: all var(--t-fast);
}
.form-input:focus, .form-textarea:focus, .form-select:focus {
  outline: none;
  border-color: var(--c-indigo);
  box-shadow: var(--sh-glow);
}
.form-textarea { min-height: 120px; resize: vertical; }

/* ---------- 18. Tabs ---------- */
.tabs { display: flex; gap: var(--s-2); padding: var(--s-1); background: var(--c-bg-3); border-radius: var(--r-full); margin-bottom: var(--s-6); width: fit-content; }
.tab-btn {
  padding: 8px 18px;
  border-radius: var(--r-full);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--c-ink-4);
  transition: all var(--t-fast);
}
.tab-btn.on { background: white; color: var(--c-ink); box-shadow: var(--sh-sm); }

/* ---------- 19. Cookie Banner ---------- */
.cookie-banner {
  position: fixed;
  bottom: var(--s-4);
  left: var(--s-4);
  right: var(--s-4);
  max-width: 480px;
  background: white;
  border: 1px solid var(--c-line);
  border-radius: var(--r-lg);
  padding: var(--s-5);
  box-shadow: var(--sh-xl);
  z-index: 1000;
  display: none;
}
.cookie-banner.show { display: block; }
.cookie-banner h4 { margin-bottom: var(--s-2); }
.cookie-banner p { font-size: 0.875rem; color: var(--c-ink-4); margin-bottom: var(--s-3); }
.cookie-banner .flex { gap: var(--s-2); }

/* ---------- 20. Utility ---------- */
.gradient-text {
  background: var(--grad-brand);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.divider { height: 1px; background: var(--c-line); margin: var(--s-8) 0; }
.dot { width: 6px; height: 6px; border-radius: 50%; display: inline-block; }
.dot-green { background: var(--c-emerald); }
.dot-amber { background: var(--c-amber); }
.dot-red { background: var(--c-red); }
.skeleton { background: var(--c-bg-3); border-radius: var(--r-sm); animation: pulse 1.5s ease-in-out infinite; }
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.5; } }
.fade-in { animation: fadeIn 0.5s ease-out; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }
.reveal { opacity: 0; transform: translateY(20px); transition: opacity .6s ease, transform .6s ease; }
.reveal.in { opacity: 1; transform: translateY(0); }
.skip-link {
  position: absolute;
  top: -100px;
  left: var(--s-4);
  background: var(--c-indigo);
  color: white;
  padding: var(--s-2) var(--s-4);
  border-radius: var(--r-sm);
  z-index: 9999;
}
.skip-link:focus { top: var(--s-4); }

/* ---------- 21. Engine logos (text-based for AI engines) ---------- */
.engine-list { display: flex; flex-wrap: wrap; gap: var(--s-3); }
.engine-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: white;
  border: 1px solid var(--c-line);
  border-radius: var(--r-full);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--c-ink-3);
}
.engine-pill .dot { width: 8px; height: 8px; }

/* ============================================================
 * v2.0 Components — AI Revenue Engine
 * Added: 4-stage loop, ROI dashboard, guarantee band,
 * stage badges, intent heatmap, attribution timeline
 * ============================================================ */

/* ---------- 22. Stage Badges ---------- */
.stage-badge {
  display: inline-flex;
  align-items: center;
  padding: 2px 10px;
  font-size: 0.7rem;
  font-weight: 700;
  border-radius: var(--r-full);
  letter-spacing: 0.03em;
  text-transform: uppercase;
  margin-left: 4px;
}
.stage-detect { background: #EEF2FF; color: #4338CA; }
.stage-diagnose { background: #FEF3C7; color: #92400E; }
.stage-execute { background: #ECFDF5; color: #047857; }
.stage-measure { background: #FCE7F3; color: #9D174D; }

/* ---------- 23. Revenue Loop (4-stage) ---------- */
.revenue-loop {
  display: grid;
  grid-template-columns: 1fr auto 1fr auto 1fr auto 1fr;
  gap: var(--s-3);
  align-items: stretch;
  margin: var(--s-8) 0;
}
.revenue-loop-stage {
  background: white;
  border: 1.5px solid var(--c-line);
  border-radius: var(--r-lg);
  padding: var(--s-6);
  text-align: center;
  transition: all var(--t);
  position: relative;
}
.revenue-loop-stage:hover {
  border-color: var(--c-indigo-light);
  box-shadow: var(--sh-lg);
  transform: translateY(-3px);
}
.revenue-loop-stage .stage-badge {
  display: inline-flex;
  margin: 0 auto var(--s-3);
  padding: 4px 14px;
  font-size: 0.75rem;
}
.revenue-loop-stage h3 { font-size: 1.05rem; margin-bottom: var(--s-2); }
.revenue-loop-stage p { font-size: 0.875rem; color: var(--c-ink-4); margin: 0; }
.revenue-loop-arrow {
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  color: var(--c-indigo-light);
  font-weight: 700;
}
@media (max-width: 900px) {
  .revenue-loop {
    grid-template-columns: 1fr;
    gap: var(--s-4);
  }
  .revenue-loop-arrow {
    transform: rotate(90deg);
    padding: var(--s-2) 0;
  }
}

/* ---------- 24. ROI Dashboard ---------- */
.roi-dashboard {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--s-4);
  margin: var(--s-8) 0;
}
.roi-metric {
  background: white;
  border: 1px solid var(--c-line);
  border-radius: var(--r-lg);
  padding: var(--s-6);
  text-align: center;
  transition: all var(--t);
  position: relative;
  overflow: hidden;
}
.roi-metric::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--grad-brand);
}
.roi-metric:hover {
  box-shadow: var(--sh-lg);
  transform: translateY(-2px);
}
.roi-metric-label {
  font-size: 0.8rem;
  color: var(--c-ink-5);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  margin-bottom: var(--s-2);
}
.roi-metric-value {
  font-size: 2.25rem;
  font-weight: 800;
  color: var(--c-ink);
  letter-spacing: -0.02em;
  line-height: 1;
  margin-bottom: var(--s-2);
  background: var(--grad-brand);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.roi-metric-trend {
  font-size: 0.8rem;
  color: var(--c-ink-5);
}
.roi-metric-trend.up { color: var(--c-emerald-dark); font-weight: 600; }
.roi-metric-trend.up::before { content: "▲ "; }
@media (max-width: 900px) {
  .roi-dashboard { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 500px) {
  .roi-dashboard { grid-template-columns: 1fr; }
}

/* ---------- 25. Guarantee Band (50x ROI) ---------- */
.guarantee-band {
  display: flex;
  align-items: center;
  gap: var(--s-5);
  background: linear-gradient(135deg, var(--c-emerald-50) 0%, var(--c-cyan-50) 100%);
  border: 1.5px solid var(--c-emerald);
  border-radius: var(--r-lg);
  padding: var(--s-6) var(--s-8);
  margin: var(--s-8) 0;
}
.guarantee-icon {
  flex-shrink: 0;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--c-emerald);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.75rem;
  font-weight: 700;
}
.guarantee-band h3 { font-size: 1.15rem; margin-bottom: var(--s-1); }
.guarantee-band p { font-size: 0.95rem; color: var(--c-ink-3); margin: 0; }
@media (max-width: 640px) {
  .guarantee-band { flex-direction: column; text-align: center; padding: var(--s-5); }
}

/* ---------- 26. Competitor Share Bar ---------- */
.competitor-share {
  margin: var(--s-4) 0;
}
.competitor-share-label {
  font-size: 0.9rem;
  color: var(--c-ink-3);
  margin-bottom: var(--s-2);
  font-weight: 500;
}
.competitor-share-bar {
  display: flex;
  height: 36px;
  border-radius: var(--r-full);
  overflow: hidden;
  box-shadow: var(--sh-sm);
}
.competitor-share-mine,
.competitor-share-rival,
.competitor-share-rival2 {
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.78rem;
  font-weight: 600;
  color: white;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  padding: 0 var(--s-2);
}
.competitor-share-mine { background: var(--c-indigo); }
.competitor-share-rival { background: var(--c-ink-5); }
.competitor-share-rival2 { background: var(--c-ink-6); }

/* ---------- 27. Intent Heatmap ---------- */
.intent-heatmap {
  display: flex;
  flex-direction: column;
  gap: var(--s-2);
  margin: var(--s-4) 0;
}
.heatmap-query {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--s-3) var(--s-4);
  border-radius: var(--r-md);
  font-size: 0.9rem;
  border-left: 4px solid;
  background: white;
  border: 1px solid var(--c-line);
  border-left-width: 4px;
}
.heatmap-query.high { border-left-color: var(--c-emerald); background: var(--c-emerald-50); }
.heatmap-query.medium { border-left-color: var(--c-amber); background: #FFFBEB; }
.heatmap-query.low { border-left-color: var(--c-red); background: #FEF2F2; }
.heat-rank {
  font-size: 0.78rem;
  font-weight: 600;
  padding: 2px 10px;
  border-radius: var(--r-full);
  background: white;
  color: var(--c-ink-4);
}

/* ---------- 28. Attribution Timeline ---------- */
.attribution-timeline {
  position: relative;
  padding-left: var(--s-8);
  margin: var(--s-6) 0;
}
.attribution-timeline::before {
  content: "";
  position: absolute;
  left: 11px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--c-line);
}
.attribution-step {
  position: relative;
  margin-bottom: var(--s-5);
}
.attribution-step:last-child { margin-bottom: 0; }
.attribution-dot {
  position: absolute;
  left: -29px;
  top: 4px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--c-indigo-light);
  border: 2px solid white;
  box-shadow: 0 0 0 2px var(--c-line);
}
.attribution-dot.highlighted {
  background: var(--c-emerald);
  box-shadow: 0 0 0 2px var(--c-emerald), 0 0 0 6px var(--c-emerald-50);
}
.attribution-content {
  background: white;
  border: 1px solid var(--c-line);
  border-radius: var(--r-md);
  padding: var(--s-3) var(--s-4);
}
.attribution-time {
  font-size: 0.75rem;
  color: var(--c-ink-5);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  margin-bottom: 2px;
}
.attribution-event {
  font-size: 0.9rem;
  color: var(--c-ink-2);
}

/* ---------- 29. Revenue Hero (v2.0 hero variant) ---------- */
.hero-revenue {
  background: linear-gradient(135deg, #EEF2FF 0%, #ECFEFF 50%, #ECFDF5 100%);
  position: relative;
  overflow: hidden;
}
.hero-revenue::before {
  content: "";
  position: absolute;
  top: -150px;
  right: -150px;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(16,185,129,.12) 0%, transparent 70%);
  pointer-events: none;
}

/* ---------- 30. Revenue Impact Report Card ---------- */
.revenue-report {
  background: white;
  border: 1.5px solid var(--c-line);
  border-radius: var(--r-xl);
  padding: var(--s-8);
  box-shadow: var(--sh-lg);
  position: relative;
  overflow: hidden;
}
.revenue-report::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--grad-brand);
}
.revenue-report-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--s-6);
  padding-bottom: var(--s-4);
  border-bottom: 1px solid var(--c-line);
}
.revenue-report-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--c-ink);
}
.revenue-report-period {
  font-size: 0.8rem;
  color: var(--c-ink-5);
}
.revenue-report-roi {
  text-align: center;
  padding: var(--s-6) 0;
  background: var(--grad-brand-soft);
  border-radius: var(--r-lg);
  margin-bottom: var(--s-6);
}
.revenue-report-roi .big {
  font-size: 3rem;
  font-weight: 800;
  background: var(--grad-brand);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  letter-spacing: -0.02em;
  line-height: 1;
}
.revenue-report-roi .label {
  font-size: 0.85rem;
  color: var(--c-ink-4);
  margin-top: var(--s-2);
}

/* ---------- 31. ROI Calculator ---------- */
.roi-calculator {
  background: white;
  border: 1.5px solid var(--c-line);
  border-radius: var(--r-xl);
  padding: var(--s-8);
  box-shadow: var(--sh-lg);
}
.roi-calculator-inputs {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--s-4);
  margin-bottom: var(--s-6);
}
@media (max-width: 640px) { .roi-calculator-inputs { grid-template-columns: 1fr; } }
.roi-calculator-output {
  background: var(--grad-brand-soft);
  border-radius: var(--r-lg);
  padding: var(--s-6);
  text-align: center;
}
.roi-calculator-output .potential {
  font-size: 2.5rem;
  font-weight: 800;
  background: var(--grad-brand);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1;
}
.roi-calculator-output .multiple {
  font-size: 1.1rem;
  color: var(--c-emerald-dark);
  font-weight: 700;
  margin-top: var(--s-2);
}

/* ============================================================
 * v3.0 Components — GEO Engine & 9-Engine Platform
 * Added: 6-step GEO engine loop, 9-engine badge grid,
 * insight cards, case cards, corpus table, simplified hero,
 * ChatGPT 8-step, corpus bar chart, prompt result cards,
 * Reddit/Quora mentions, AIO trigger grid, GEO step indicator,
 * glossary terms, FAQ accordion, changelog timeline
 * ============================================================ */

/* ---------- 32. v3.0 Design Tokens ---------- */
:root {
  --c-engine-chatgpt: #10A37F;
  --c-engine-perplexity: #20808D;
  --c-engine-aio: #4285F4;
  --c-engine-gemini: #4285F4;
  --c-engine-claude: #D97757;
  --c-engine-copilot: #0078D4;
  --c-engine-meta: #0467DF;
  --c-engine-rufus: #FF9900;
  --c-engine-apple: #000000;
  --c-accent-orange: #F59E0B;
  --c-accent-orange-50: #FFFBEB;
  --c-accent-orange-100: #FEF3C7;
  --c-platform-reddit: #FF4500;
  --c-platform-reddit-50: #FFF2EC;
  --c-platform-quora: #B92B27;
  --c-platform-quora-50: #FDEBEA;
  --sh-card-light: 0 2px 8px rgba(15,23,42,.06);
  --sh-card-medium: 0 8px 24px rgba(15,23,42,.08);
  --hero-v3-max: 90vh;
}

/* ---------- 33. GEO Engine Loop (6-step) ---------- */
.geo-engine-loop {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--s-4);
  margin: var(--s-8) 0;
}

.geo-step {
  background: #F8FAFC;
  border: 1.5px solid #E2E8F0;
  border-radius: var(--r-lg);
  padding: var(--s-6);
  transition: all var(--t);
  display: flex;
  gap: var(--s-4);
  align-items: flex-start;
}

.geo-step:hover {
  border-color: var(--c-indigo-light);
  box-shadow: var(--sh-card-medium);
  transform: translateY(-2px);
}

.geo-step-new {
  border-color: var(--c-indigo);
  background: var(--c-indigo-50);
  position: relative;
}

.geo-step-new::after {
  content: "NEW";
  position: absolute;
  top: 10px;
  right: 14px;
  background: var(--c-indigo);
  color: white;
  font-size: 0.65rem;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: var(--r-full);
  letter-spacing: 0.05em;
}

.geo-step-num {
  flex-shrink: 0;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: #4F46E5;
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.95rem;
  line-height: 1;
}

.geo-step-body {
  flex: 1;
}

.geo-step-body h3 {
  font-size: 1.1rem;
  margin-bottom: var(--s-1);
  color: var(--c-ink);
}

.geo-step-body p {
  font-size: 0.9rem;
  color: var(--c-ink-4);
  margin-bottom: var(--s-2);
}

.geo-step-body a {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--c-indigo);
}

.geo-step-body a:hover {
  color: var(--c-indigo-dark);
  text-decoration: underline;
}

@media (max-width: 900px) {
  .geo-engine-loop {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 640px) {
  .geo-engine-loop {
    grid-template-columns: 1fr;
  }
}

/* ---------- 34. Engine Grid (9 engines) ---------- */
.engine-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--s-4);
  margin: var(--s-6) 0;
}

.engine-badge {
  display: flex;
  align-items: center;
  gap: var(--s-3);
  background: white;
  border: 1px solid var(--c-line);
  border-radius: var(--r-md);
  padding: var(--s-4);
  transition: all var(--t-fast);
  cursor: default;
}

.engine-badge:hover {
  border-color: var(--c-indigo-light);
  box-shadow: var(--sh-card-light);
  transform: translateY(-2px);
}

.engine-badge:focus-visible {
  outline: 2px solid var(--c-indigo);
  outline-offset: 2px;
}

.engine-icon {
  flex-shrink: 0;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: 700;
  font-size: 0.75rem;
  letter-spacing: -0.02em;
}

.engine-icon.chatgpt { background: #10A37F; }
.engine-icon.perplexity { background: #20808D; }
.engine-icon.aio { background: #4285F4; }
.engine-icon.gemini { background: #4285F4; }
.engine-icon.claude { background: #D97757; }
.engine-icon.copilot { background: #0078D4; }
.engine-icon.meta { background: #0467DF; }
.engine-icon.rufus { background: #FF9900; }
.engine-icon.apple { background: #000000; }

.engine-name {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--c-ink-2);
}

@media (max-width: 640px) {
  .engine-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* ---------- 35. Insight Cards (counter-intuitive insights) ---------- */
.insight-card {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--s-5);
  margin: var(--s-8) 0;
}

@media (max-width: 900px) {
  .insight-card {
    grid-template-columns: 1fr 1fr;
  }
}

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

.insight-card .card {
  background: white;
  border: 1px solid var(--c-line);
  border-left: 4px solid #F59E0B;
  border-radius: var(--r-lg);
  padding: var(--s-6);
  transition: all var(--t);
}

.insight-card .card:hover {
  border-left-width: 6px;
  background: var(--c-accent-orange-50);
  border-color: var(--c-accent-orange);
  box-shadow: var(--sh-card-medium);
  transform: translateY(-2px);
}

.insight-card .card:focus-within {
  border-left-width: 6px;
  border-color: var(--c-accent-orange);
  box-shadow: 0 0 0 3px rgba(245,158,11,.20);
}

.insight-icon {
  font-size: 2.5rem;
  margin-bottom: var(--s-3);
  display: block;
  line-height: 1;
}

.insight-card .card h3 {
  font-size: 1.15rem;
  margin-bottom: var(--s-2);
  color: var(--c-ink);
}

.insight-card .card p {
  font-size: 0.9rem;
  color: var(--c-ink-4);
  margin-bottom: var(--s-3);
}

.insight-link {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--c-indigo);
  display: inline-flex;
  align-items: center;
  gap: var(--s-1);
  transition: color var(--t-fast);
}

.insight-link:hover {
  color: var(--c-indigo-dark);
  text-decoration: underline;
}

.insight-link::after {
  content: "→";
  transition: transform var(--t-fast);
}

.insight-link:hover::after {
  transform: translateX(3px);
}

/* ---------- 36. Case Cards (customers page) ---------- */
.case-card {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--s-6);
  margin: var(--s-8) 0;
}

@media (max-width: 900px) {
  .case-card {
    grid-template-columns: 1fr 1fr;
  }
}

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

.case-card .card {
  background: white;
  border: 1px solid var(--c-line);
  border-radius: 12px;
  padding: var(--s-6);
  box-shadow: var(--sh-card-light);
  transition: all var(--t);
}

.case-card .card:hover {
  box-shadow: var(--sh-card-medium);
  transform: translateY(-4px);
  border-color: var(--c-indigo-light);
}

.case-card .card:focus-within {
  border-color: var(--c-indigo);
  box-shadow: 0 0 0 3px rgba(79,70,229,.15);
}

.case-logo {
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--c-ink);
  letter-spacing: -0.02em;
  margin-bottom: var(--s-1);
}

.case-industry {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--c-ink-5);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: var(--s-3);
}

.case-card .card h3 {
  font-size: 1.1rem;
  margin-bottom: var(--s-2);
  color: var(--c-ink);
}

.case-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--s-3);
  padding: var(--s-4);
  background: var(--c-bg-2);
  border-radius: var(--r-md);
  margin: var(--s-4) 0;
}

.case-stat {
  text-align: center;
}

.case-stat .num {
  display: block;
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--c-indigo);
  line-height: 1;
  margin-bottom: 2px;
}

.case-stat .label {
  font-size: 0.75rem;
  color: var(--c-ink-5);
}

.case-link {
  display: inline-flex;
  align-items: center;
  gap: var(--s-1);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--c-indigo);
  transition: color var(--t-fast);
}

.case-link:hover {
  color: var(--c-indigo-dark);
}

.case-link::after {
  content: "→";
  transition: transform var(--t-fast);
}

.case-link:hover::after {
  transform: translateX(3px);
}

/* ---------- 37. Corpus Table (AI corpus source comparison) ---------- */
.corpus-table {
  width: 100%;
  border-collapse: collapse;
  margin: var(--s-6) 0;
  background: white;
  border: 1px solid var(--c-line);
  border-radius: var(--r-lg);
  overflow: hidden;
  font-size: 0.95rem;
}

.corpus-header {
  display: grid;
  grid-template-columns: 180px 1fr 1fr;
  background: var(--c-bg-2);
  border-bottom: 2px solid var(--c-line);
}

.corpus-header > div {
  padding: var(--s-3) var(--s-4);
  font-weight: 700;
  color: var(--c-ink);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.corpus-row {
  display: grid;
  grid-template-columns: 180px 1fr 1fr;
  border-bottom: 1px solid var(--c-line-2);
  transition: background var(--t-fast);
}

.corpus-row:last-child {
  border-bottom: none;
}

.corpus-row:hover {
  background: var(--c-bg-2);
}

.corpus-row > div {
  padding: var(--s-3) var(--s-4);
  display: flex;
  align-items: center;
}

.corpus-llm {
  font-weight: 600;
  color: var(--c-ink);
  gap: var(--s-2);
}

.corpus-llm-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  flex-shrink: 0;
  display: inline-block;
}

.corpus-llm-dot.chatgpt { background: #10A37F; }
.corpus-llm-dot.perplexity { background: #20808D; }
.corpus-llm-dot.gemini { background: #4285F4; }
.corpus-llm-dot.claude { background: #D97757; }

.corpus-sources {
  color: var(--c-ink-3);
  font-size: 0.9rem;
}

.corpus-publish {
  color: var(--c-ink-3);
  font-size: 0.9rem;
}

@media (max-width: 640px) {
  .corpus-table {
    display: flex;
    flex-direction: column;
    gap: var(--s-3);
    border: none;
  }
  .corpus-header {
    display: none;
  }
  .corpus-row {
    display: flex;
    flex-direction: column;
    border: 1px solid var(--c-line);
    border-radius: var(--r-md);
    padding: var(--s-4);
    gap: var(--s-2);
    background: white;
  }
  .corpus-row > div {
    padding: 0;
  }
  .corpus-row > div::before {
    font-weight: 600;
    font-size: 0.75rem;
    color: var(--c-ink-5);
    text-transform: uppercase;
    letter-spacing: 0.03em;
    margin-right: var(--s-2);
  }
  .corpus-row > div:nth-child(1)::before { content: "LLM"; }
  .corpus-row > div:nth-child(2)::before { content: "Sources"; }
  .corpus-row > div:nth-child(3)::before { content: "Publish"; }
}

/* ---------- 38. Hero Simple (v3.0 simplified hero) ---------- */
.hero-simple {
  padding: var(--s-16) 0 var(--s-12);
  background: var(--grad-brand-soft);
  position: relative;
  overflow: hidden;
  min-height: auto;
  max-height: var(--hero-v3-max);
}

.hero-simple::before {
  content: "";
  position: absolute;
  top: -100px;
  right: -100px;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(79,70,229,.08) 0%, transparent 70%);
  pointer-events: none;
}

.hero-grid-simple {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--s-10);
  align-items: center;
  max-width: var(--container-wide);
  margin: 0 auto;
  padding: 0 var(--s-6);
  position: relative;
  z-index: 1;
}

.hero-copy {
  max-width: 560px;
}

.hero-copy h1 {
  font-size: clamp(2.25rem, 5vw, 3rem);
  font-weight: 800;
  color: var(--c-ink);
  line-height: 1.15;
  letter-spacing: -0.03em;
  margin-bottom: var(--s-4);
}

.hero-accent {
  display: block;
  color: #4F46E5;
}

.hero-copy .hero-subtitle {
  font-size: 1.125rem;
  color: var(--c-ink-4);
  margin-bottom: var(--s-6);
  line-height: 1.6;
  max-width: 480px;
}

.hero-visual {
  display: flex;
  align-items: center;
  justify-content: center;
}

@media (max-width: 900px) {
  .hero-grid-simple {
    grid-template-columns: 1fr;
    gap: var(--s-8);
    text-align: center;
  }
  .hero-copy {
    max-width: 100%;
    margin: 0 auto;
  }
  .hero-copy .hero-subtitle {
    max-width: 100%;
    margin-left: auto;
    margin-right: auto;
  }
  .hero-simple {
    max-height: none;
    padding: var(--s-12) 0 var(--s-8);
  }
}

/* ROI Dashboard Mini (v3.0 simplified — 2×2 grid) */
.roi-dashboard-mini {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--s-3);
  background: white;
  border: 1px solid var(--c-line);
  border-radius: var(--r-lg);
  padding: var(--s-5);
  box-shadow: var(--sh-card-light);
  max-width: 400px;
  width: 100%;
}

.roi-dashboard-mini .roi-metric-mini {
  text-align: center;
  padding: var(--s-4) var(--s-3);
  border-radius: var(--r-md);
  background: var(--c-bg-2);
  transition: all var(--t-fast);
}

.roi-dashboard-mini .roi-metric-mini:hover {
  background: var(--c-indigo-50);
}

.roi-metric-mini-label {
  font-size: 0.7rem;
  color: var(--c-ink-5);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  font-weight: 600;
  margin-bottom: var(--s-1);
}

.roi-metric-mini-value {
  font-size: 1.6rem;
  font-weight: 800;
  background: var(--grad-brand);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1;
}

/* ---------- 39. ChatGPT 8-Step Optimization Framework ---------- */
.chatgpt-8step {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--s-4);
  margin: var(--s-8) 0;
  counter-reset: step-counter;
}

.step-item {
  background: white;
  border: 1px solid var(--c-line);
  border-radius: var(--r-lg);
  padding: var(--s-5);
  display: flex;
  gap: var(--s-4);
  align-items: flex-start;
  transition: all var(--t);
  counter-increment: step-counter;
}

.step-item:hover {
  border-color: var(--c-indigo-light);
  box-shadow: var(--sh-card-light);
  transform: translateX(4px);
}

.step-item:focus-within {
  border-color: var(--c-indigo);
  box-shadow: 0 0 0 3px rgba(79,70,229,.12);
}

.step-num {
  flex-shrink: 0;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--c-indigo-50);
  color: var(--c-indigo-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.9rem;
  line-height: 1;
}

.step-item h4 {
  font-size: 1.05rem;
  color: var(--c-ink);
  margin-bottom: var(--s-1);
}

.step-item p {
  font-size: 0.88rem;
  color: var(--c-ink-4);
  margin: 0;
}

@media (max-width: 640px) {
  .chatgpt-8step {
    grid-template-columns: 1fr;
  }
}

/* ---------- 40. Corpus Bar Chart (LLM source ratio) ---------- */
.corpus-bar {
  margin: var(--s-6) 0;
}

.corpus-bar-row {
  display: flex;
  align-items: center;
  gap: var(--s-3);
  margin-bottom: var(--s-3);
}

.corpus-bar-label {
  flex-shrink: 0;
  width: 100px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--c-ink-2);
  text-align: right;
}

.corpus-bar-track-wrap {
  flex: 1;
}

.corpus-bar-track {
  width: 100%;
  height: 28px;
  background: var(--c-bg-3);
  border-radius: var(--r-full);
  overflow: hidden;
  position: relative;
}

.corpus-bar-fill {
  height: 100%;
  border-radius: var(--r-full);
  display: flex;
  align-items: center;
  padding: 0 var(--s-3);
  font-size: 0.75rem;
  font-weight: 700;
  color: white;
  transition: width var(--t-slow);
  min-width: 36px;
  white-space: nowrap;
}

.corpus-bar-fill.chatgpt { background: #10A37F; }
.corpus-bar-fill.perplexity { background: #20808D; }
.corpus-bar-fill.gemini { background: #4285F4; }
.corpus-bar-fill.claude { background: #D97757; }
.corpus-bar-fill.copilot { background: #0078D4; }
.corpus-bar-fill.meta { background: #0467DF; }

.corpus-bar-percent {
  flex-shrink: 0;
  width: 50px;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--c-ink-3);
  text-align: left;
}

@media (max-width: 640px) {
  .corpus-bar-label {
    width: 70px;
    font-size: 0.78rem;
  }
  .corpus-bar-percent {
    width: 40px;
    font-size: 0.78rem;
  }
}

/* ---------- 41. Prompt Result Cards (prompt research tool) ---------- */
.prompt-result-list {
  display: flex;
  flex-direction: column;
  gap: var(--s-3);
  margin: var(--s-6) 0;
}

.prompt-result-card {
  background: white;
  border: 1px solid var(--c-line);
  border-radius: var(--r-md);
  padding: var(--s-4) var(--s-5);
  display: flex;
  align-items: center;
  gap: var(--s-4);
  transition: all var(--t);
}

.prompt-result-card:hover {
  border-color: var(--c-indigo-light);
  box-shadow: var(--sh-card-light);
  transform: translateX(4px);
}

.prompt-result-card:focus-within {
  border-color: var(--c-indigo);
  box-shadow: 0 0 0 3px rgba(79,70,229,.12);
}

.prompt-text {
  flex: 1;
  font-size: 0.95rem;
  color: var(--c-ink-2);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.prompt-intent {
  flex-shrink: 0;
  padding: 3px 10px;
  border-radius: var(--r-full);
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.prompt-intent.high {
  background: #ECFDF5;
  color: #065F46;
}

.prompt-intent.medium {
  background: #FEF3C7;
  color: #92400E;
}

.prompt-intent.low {
  background: var(--c-bg-3);
  color: var(--c-ink-5);
}

.prompt-score {
  flex-shrink: 0;
  font-size: 1rem;
  font-weight: 700;
  color: var(--c-indigo);
  min-width: 36px;
  text-align: center;
}

.prompt-result-card .prompt-detail {
  display: none;
  font-size: 0.82rem;
  color: var(--c-ink-4);
  margin-top: var(--s-2);
}

.prompt-result-card:hover .prompt-detail {
  display: block;
}

@media (max-width: 640px) {
  .prompt-result-card {
    flex-wrap: wrap;
    gap: var(--s-2);
  }
  .prompt-text {
    width: 100%;
    white-space: normal;
  }
}

/* ---------- 42. Reddit/Quora Mention Cards ---------- */
.reddit-quora-mention {
  display: flex;
  flex-direction: column;
  gap: var(--s-3);
  margin: var(--s-6) 0;
}

.mention-item {
  background: white;
  border: 1px solid var(--c-line);
  border-radius: var(--r-md);
  padding: var(--s-4) var(--s-5);
  transition: all var(--t);
}

.mention-item:hover {
  border-color: var(--c-indigo-light);
  box-shadow: var(--sh-card-light);
}

.mention-header {
  display: flex;
  align-items: center;
  gap: var(--s-3);
  margin-bottom: var(--s-2);
}

.mention-platform {
  padding: 3px 10px;
  border-radius: var(--r-full);
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: white;
}

.mention-platform.reddit {
  background: #FF4500;
}

.mention-platform.quora {
  background: #B92B27;
}

.mention-text {
  font-size: 0.95rem;
  color: var(--c-ink-2);
  line-height: 1.5;
  margin-bottom: var(--s-2);
}

.mention-meta {
  display: flex;
  gap: var(--s-4);
  font-size: 0.8rem;
  color: var(--c-ink-5);
  flex-wrap: wrap;
}

.mention-meta span {
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.mention-meta a {
  color: var(--c-ink-5);
  font-weight: 500;
}

.mention-meta a:hover {
  color: var(--c-indigo);
}

/* ---------- 43. AIO Trigger Grid (Google AIO checker tool) ---------- */
.aio-trigger-grid {
  width: 100%;
  border-collapse: collapse;
  margin: var(--s-6) 0;
  background: white;
  border: 1px solid var(--c-line);
  border-radius: var(--r-lg);
  overflow: hidden;
  font-size: 0.95rem;
}

.aio-trigger-grid .header-row {
  display: grid;
  grid-template-columns: 1fr 140px 160px;
  background: var(--c-bg-2);
  border-bottom: 2px solid var(--c-line);
}

.aio-trigger-grid .header-row > div {
  padding: var(--s-3) var(--s-4);
  font-weight: 700;
  color: var(--c-ink);
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.aio-trigger-row {
  display: grid;
  grid-template-columns: 1fr 140px 160px;
  border-bottom: 1px solid var(--c-line-2);
  transition: background var(--t-fast);
}

.aio-trigger-row:last-child {
  border-bottom: none;
}

.aio-trigger-row:hover {
  background: var(--c-bg-2);
}

.aio-trigger-row > div {
  padding: var(--s-3) var(--s-4);
  display: flex;
  align-items: center;
}

.aio-keyword {
  font-weight: 500;
  color: var(--c-ink-2);
}

.aio-trigger {
  padding: 3px 10px;
  border-radius: var(--r-full);
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  display: inline-block;
}

.aio-trigger.yes {
  background: #ECFDF5;
  color: #065F46;
}

.aio-trigger.no {
  background: var(--c-bg-3);
  color: var(--c-ink-5);
}

.aio-citation {
  padding: 3px 10px;
  border-radius: var(--r-full);
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  display: inline-block;
}

.aio-citation.you {
  background: var(--c-indigo-50);
  color: var(--c-indigo-dark);
}

.aio-citation.competitor {
  background: #FEE2E2;
  color: #991B1B;
}

.aio-citation.none {
  background: var(--c-bg-3);
  color: var(--c-ink-5);
}

@media (max-width: 640px) {
  .aio-trigger-grid {
    border: none;
  }
  .aio-trigger-grid .header-row {
    display: none;
  }
  .aio-trigger-row {
    display: flex;
    flex-direction: column;
    gap: var(--s-2);
    border: 1px solid var(--c-line);
    border-radius: var(--r-md);
    padding: var(--s-4);
    margin-bottom: var(--s-2);
    background: white;
  }
  .aio-trigger-row > div {
    padding: 0;
  }
  .aio-trigger-row > div::before {
    font-weight: 600;
    font-size: 0.72rem;
    color: var(--c-ink-5);
    text-transform: uppercase;
    letter-spacing: 0.03em;
    margin-right: var(--s-2);
  }
  .aio-trigger-row > div:nth-child(1)::before { content: "Keyword: "; }
  .aio-trigger-row > div:nth-child(2)::before { content: "AIO: "; }
  .aio-trigger-row > div:nth-child(3)::before { content: "Citation: "; }
}

/* ---------- 44. GEO Step Indicator (6-step navigation) ---------- */
.geo-step-indicator {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--s-3);
  flex-wrap: wrap;
  margin: var(--s-6) 0;
  padding: var(--s-4) var(--s-5);
  background: var(--c-bg-2);
  border: 1px solid var(--c-line);
  border-radius: var(--r-lg);
}

.geo-step-indicator-label {
  width: 100%;
  text-align: center;
  font-size: 0.85rem;
  color: var(--c-ink-4);
  margin-bottom: var(--s-2);
}

.geo-step-indicator a {
  padding: var(--s-2) var(--s-4);
  border-radius: var(--r-full);
  font-size: 0.82rem;
  font-weight: 600;
  background: white;
  color: var(--c-ink-4);
  border: 1px solid var(--c-line);
  transition: all var(--t-fast);
  white-space: nowrap;
}

.geo-step-indicator a:hover {
  border-color: var(--c-indigo-light);
  color: var(--c-indigo);
  background: var(--c-indigo-50);
  transform: translateY(-1px);
}

.geo-step-indicator a.current {
  background: var(--c-indigo);
  color: white;
  border-color: var(--c-indigo);
  pointer-events: none;
}

.geo-step-indicator-arrow {
  color: var(--c-ink-6);
  font-size: 0.8rem;
  font-weight: 700;
  user-select: none;
}

@media (max-width: 640px) {
  .geo-step-indicator {
    flex-wrap: wrap;
    gap: var(--s-2);
  }
  .geo-step-indicator a {
    font-size: 0.75rem;
    padding: var(--s-1) var(--s-3);
  }
  .geo-step-indicator-arrow {
    display: none;
  }
}

/* ---------- 45. Glossary Terms ---------- */
.glossary-term {
  background: white;
  border: 1px solid var(--c-line);
  border-radius: var(--r-lg);
  padding: var(--s-6);
  margin-bottom: var(--s-5);
  transition: all var(--t);
}

.glossary-term:hover {
  border-color: var(--c-indigo-light);
  box-shadow: var(--sh-card-light);
}

.glossary-term h3 {
  font-size: 1.35rem;
  color: var(--c-ink);
  margin-bottom: var(--s-3);
  display: flex;
  align-items: center;
  gap: var(--s-2);
}

.glossary-term h3::before {
  content: "§";
  color: var(--c-indigo);
  font-weight: 400;
  font-size: 1.2rem;
}

.glossary-definition {
  font-size: 0.95rem;
  color: var(--c-ink-3);
  line-height: 1.7;
  margin-bottom: var(--s-3);
  padding-left: var(--s-5);
  border-left: 3px solid var(--c-indigo-100);
}

.glossary-example {
  background: var(--c-bg-2);
  border-radius: var(--r-md);
  padding: var(--s-3) var(--s-4);
  font-size: 0.88rem;
  color: var(--c-ink-4);
  margin-bottom: var(--s-3);
  font-style: italic;
}

.glossary-example strong {
  font-weight: 600;
  color: var(--c-ink-2);
  font-style: normal;
}

.glossary-related {
  display: flex;
  gap: var(--s-2);
  flex-wrap: wrap;
  align-items: center;
}

.glossary-related-label {
  font-size: 0.8rem;
  color: var(--c-ink-5);
  font-weight: 600;
}

.glossary-related a {
  font-size: 0.82rem;
  color: var(--c-indigo);
  padding: 2px 10px;
  background: var(--c-indigo-50);
  border-radius: var(--r-full);
  transition: all var(--t-fast);
}

.glossary-related a:hover {
  background: var(--c-indigo-100);
  color: var(--c-indigo-dark);
}

/* ---------- 46. FAQ Accordion (v3.0 enhanced) ---------- */
.faq-accordion {
  margin: var(--s-6) 0;
}

.faq-accordion .faq-item {
  border: 1px solid var(--c-line);
  border-radius: var(--r-md);
  margin-bottom: var(--s-3);
  background: white;
  overflow: hidden;
  transition: all var(--t-fast);
}

.faq-accordion .faq-item.open {
  border-color: var(--c-indigo-light);
  box-shadow: var(--sh-card-light);
}

.faq-accordion .faq-q {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--s-4) var(--s-5);
  font-weight: 600;
  color: var(--c-ink);
  text-align: left;
  font-size: 1rem;
  background: none;
  border: none;
  cursor: pointer;
  transition: color var(--t-fast);
}

.faq-accordion .faq-q:hover {
  color: var(--c-indigo);
}

.faq-accordion .faq-q:focus-visible {
  outline: 2px solid var(--c-indigo);
  outline-offset: -2px;
}

.faq-accordion .faq-q::after {
  content: "+";
  font-size: 1.5rem;
  color: var(--c-ink-5);
  transition: transform var(--t-fast);
  flex-shrink: 0;
  margin-left: var(--s-4);
}

.faq-accordion .faq-item.open .faq-q::after {
  transform: rotate(45deg);
  color: var(--c-indigo);
}

.faq-accordion .faq-a {
  padding: 0 var(--s-5);
  max-height: 0;
  overflow: hidden;
  color: var(--c-ink-4);
  transition: all var(--t);
}

.faq-accordion .faq-item.open .faq-a {
  padding: 0 var(--s-5) var(--s-5);
  max-height: 600px;
}

/* ---------- 47. Changelog Timeline ---------- */
.changelog-entry {
  display: flex;
  gap: var(--s-6);
  margin-bottom: var(--s-8);
  position: relative;
}

.changelog-entry:not(:last-child)::after {
  content: "";
  position: absolute;
  left: 28px;
  top: 64px;
  bottom: -32px;
  width: 2px;
  background: var(--c-line);
}

.changelog-version {
  flex-shrink: 0;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--c-indigo);
  color: white;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  position: relative;
  z-index: 1;
  transition: transform var(--t-fast);
}

.changelog-version:hover {
  transform: scale(1.08);
}

.changelog-ver {
  font-size: 1rem;
  line-height: 1;
}

.changelog-date {
  font-size: 0.6rem;
  opacity: 0.85;
  margin-top: 1px;
}

.changelog-content {
  flex: 1;
  background: white;
  border: 1px solid var(--c-line);
  border-radius: var(--r-lg);
  padding: var(--s-5) var(--s-6);
  transition: all var(--t);
}

.changelog-content:hover {
  border-color: var(--c-indigo-light);
  box-shadow: var(--sh-card-light);
}

.changelog-content h3 {
  font-size: 1.15rem;
  color: var(--c-ink);
  margin-bottom: var(--s-2);
}

.changelog-content ul {
  list-style: disc;
  padding-left: var(--s-5);
  color: var(--c-ink-3);
  font-size: 0.9rem;
  line-height: 1.7;
}

.changelog-content ul li {
  margin-bottom: var(--s-1);
}

.changelog-content ul li::marker {
  color: var(--c-indigo-light);
}

@media (max-width: 640px) {
  .changelog-entry {
    gap: var(--s-4);
  }
  .changelog-version {
    width: 44px;
    height: 44px;
  }
  .changelog-ver {
    font-size: 0.85rem;
  }
  .changelog-content {
    padding: var(--s-4);
  }
  .changelog-entry:not(:last-child)::after {
    left: 22px;
    top: 52px;
  }
}

/* ---------- 22. Print ---------- */
@media print {
  .nav, .footer, .cta-band, .cookie-banner, .revenue-loop-arrow { display: none; }
  body { color: black; }
  .revenue-loop { grid-template-columns: 1fr 1fr; }
}

/* ============================================================
 * Aivius - Native Mockup Components (watermark-free)
 * Replaces the 5 AI-generated, watermarked PNG images.
 * ============================================================ */
.mk { border-radius: 14px; border: 1px solid var(--c-line); background: #fff;
  box-shadow: var(--sh-lg); overflow: hidden; font-family: var(--font-sans); }
.mk-chrome { display:flex; align-items:center; gap:6px; padding:9px 14px;
  background: var(--c-bg-3); border-bottom: 1px solid var(--c-line); }
.mk-dot { width:10px; height:10px; border-radius:50%; background: var(--c-line); }
.mk-dot.r{background:#FCA5A5;} .mk-dot.y{background:#FCD34D;} .mk-dot.g{background:#86EFAC;}
.mk-url { margin-left:10px; flex:1; font-size:0.72rem; color:var(--c-ink-5);
  background:#fff; border:1px solid var(--c-line); border-radius:999px; padding:3px 12px; }
.mk-body { padding:18px; }

/* Hero dashboard */
.mk-hero-dash .mk-kpis { display:grid; grid-template-columns:repeat(4,1fr); gap:10px; margin-bottom:16px; }
.mk-kpi { background:var(--c-bg-2); border:1px solid var(--c-line); border-radius:10px; padding:10px 12px; }
.mk-kpi .l { font-size:0.6rem; text-transform:uppercase; letter-spacing:.04em; color:var(--c-ink-5); font-weight:600; }
.mk-kpi .v { font-size:1.4rem; font-weight:800; color:var(--c-ink); letter-spacing:-.02em; margin-top:2px;
  background:var(--grad-brand); -webkit-background-clip:text; background-clip:text; -webkit-text-fill-color:transparent; }
.mk-kpi .t { font-size:0.62rem; color:var(--c-emerald-dark); font-weight:600; margin-top:2px; }
.mk-chart { display:flex; align-items:flex-end; gap:8px; height:110px; padding:12px 4px 0; border-top:1px solid var(--c-line-2); }
.mk-bar { flex:1; border-radius:6px 6px 0 0; background:var(--grad-brand); opacity:.85; }
.mk-legend { display:flex; justify-content:space-between; font-size:0.6rem; color:var(--c-ink-6); margin-top:6px; }

/* Revenue report model rows */
.mk-report-grid { display:grid; grid-template-columns:1fr; gap:8px; margin-top:4px; }
.mk-model-row { display:grid; grid-template-columns:150px 1fr 78px; align-items:center; gap:10px; font-size:0.8rem; }
.mk-model-row .name { font-weight:600; color:var(--c-ink-2); }
.mk-track { height:8px; background:var(--c-bg-3); border-radius:999px; overflow:hidden; }
.mk-fill { display:block; height:100%; border-radius:999px; background:var(--grad-brand); }
.mk-model-row .amt { text-align:right; font-weight:700; color:var(--c-ink); font-variant-numeric:tabular-nums; }
.mk-report-foot { display:flex; justify-content:space-between; margin-top:12px; padding-top:12px;
  border-top:1px solid var(--c-line); font-weight:700; color:var(--c-ink); }

/* Workflow diagram */
.mk-workflow { width:100%; max-width:1000px; margin:0 auto; }
.mk-workflow svg { width:100%; height:auto; display:block; }

/* Customer dashboard */
.mk-cust { display:grid; grid-template-columns:170px 1fr; min-height:260px; }
.mk-side { background:var(--grad-ink); color:#fff; padding:16px 14px; }
.mk-side .brand { display:flex; align-items:center; gap:8px; font-weight:800; margin-bottom:18px; font-size:0.9rem; }
.mk-side .logo { width:22px; height:22px; border-radius:6px; background:var(--grad-brand);
  display:flex; align-items:center; justify-content:center; font-weight:800; font-size:.8rem; }
.mk-navitem { font-size:0.74rem; color:rgba(255,255,255,.65); padding:7px 10px; border-radius:8px; margin-bottom:4px; }
.mk-navitem.active { background:rgba(255,255,255,.14); color:#fff; }
.mk-main { padding:16px 18px; }
.mk-main h4 { font-size:0.9rem; color:var(--c-ink); margin-bottom:12px; }
.mk-area { height:96px; display:flex; align-items:flex-end; gap:6px; }
.mk-area .col { flex:1; background:var(--grad-brand-soft); border-radius:4px 4px 0 0; border-top:2px solid var(--c-indigo); }
.mk-tiles { display:grid; grid-template-columns:repeat(3,1fr); gap:10px; margin-top:14px; }
.mk-tile { background:var(--c-bg-2); border:1px solid var(--c-line); border-radius:10px; padding:10px; }
.mk-tile .l { font-size:0.58rem; text-transform:uppercase; color:var(--c-ink-5); font-weight:600; }
.mk-tile .v { font-size:1.05rem; font-weight:800; color:var(--c-ink); margin-top:2px; }

/* AI model coverage */
.mk-coverage { display:grid; grid-template-columns:repeat(3,1fr); gap:12px; }
.mk-chip { border:1px solid var(--c-line); border-radius:12px; padding:12px; background:#fff; }
.mk-chip .top { display:flex; align-items:center; justify-content:space-between; margin-bottom:8px; }
.mk-chip .mname { font-weight:700; font-size:0.82rem; color:var(--c-ink-2); }
.mk-chip .pct { font-size:0.72rem; font-weight:700; color:var(--c-emerald-dark); }
.mk-chip .bar { height:6px; background:var(--c-bg-3); border-radius:999px; overflow:hidden; margin-bottom:6px; }
.mk-chip .bar > i { display:block; height:100%; border-radius:999px; background:var(--grad-brand); }
.mk-chip .rev { font-size:0.7rem; color:var(--c-ink-5); }
.mk-chip .rev b { color:var(--c-ink); font-variant-numeric:tabular-nums; }

@media (max-width:760px){ .mk-coverage{ grid-template-columns:repeat(2,1fr);} }
@media (max-width:560px){ .mk-hero-dash .mk-kpis{ grid-template-columns:repeat(2,1fr);}
  .mk-coverage{ grid-template-columns:1fr;} .mk-model-row{ grid-template-columns:110px 1fr 64px;} }
@media (max-width:640px){ .mk-cust{ grid-template-columns:1fr; } .mk-side{ display:none; } }