/* ============================================================
   Echo Workspace — Marketing Site
   VEX-Timeline Flat Design
   Strict rules: no box-shadow, no backdrop-blur, no gradients
   on buttons/cards. Color-block sections. Outfit only.
   ============================================================ */

/* ---------- Design tokens ---------- */
:root,
[data-theme="light"] {
  --canvas:        #FFFFFF;
  --fg:            #111827;
  --fg-muted:      #6B7280;
  --fg-faint:      #9CA3AF;
  --primary:       #3B82F6;
  --primary-hover: #2563EB;
  --primary-deep:  #1D4ED8;
  --secondary:     #10B981;
  --secondary-deep:#059669;
  --accent:        #F59E0B;
  --accent-deep:   #D97706;
  --muted:         #F3F4F6;
  --muted-deep:    #E5E7EB;
  --border:        #E5E7EB;
  --on-primary:    #FFFFFF;
  --on-secondary:  #FFFFFF;
  --on-accent:     #111827;
  --on-fg:         #FFFFFF;
  --on-muted:      #111827;
  --font-sans:     'Outfit', system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
  --radius-md:     6px;
  --radius-lg:     8px;
  --radius-full:   9999px;
  --t-fast:        200ms;
  --t-base:        300ms;
  --t-slow:        600ms;
  --ease:          cubic-bezier(.2, .8, .2, 1);
  --max-w:         1200px;
  --section-pad-y: 7rem;
  --section-pad-x: 2rem;
}

[data-theme="dark"] {
  --canvas:        #0F172A;
  --fg:            #F1F5F9;
  --fg-muted:      #94A3B8;
  --fg-faint:      #64748B;
  --primary:       #60A5FA;
  --primary-hover: #3B82F6;
  --primary-deep:  #2563EB;
  --secondary:     #34D399;
  --secondary-deep:#10B981;
  --accent:        #FBBF24;
  --accent-deep:   #F59E0B;
  --muted:         #1E293B;
  --muted-deep:    #334155;
  --border:        #334155;
  --on-primary:    #0F172A;
  --on-secondary:  #0F172A;
  --on-accent:     #0F172A;
  --on-fg:         #0F172A;
  --on-muted:      #F1F5F9;
}

/* ---------- Global reset & base ---------- */
* {
  box-shadow: none !important;
  -webkit-box-shadow: none !important;
  backdrop-filter: none !important;
  -webkit-backdrop-filter: none !important;
}
* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: var(--font-sans);
  background: var(--canvas);
  color: var(--fg);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  transition: background-color var(--t-base) var(--ease), color var(--t-base) var(--ease);
}

a { color: inherit; }
img, svg { display: block; max-width: 100%; }
button { font: inherit; background: none; border: 0; cursor: pointer; }

/* ---------- Nav ---------- */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  padding: 1.25rem 2rem;
  display: flex; align-items: center; justify-content: space-between;
  background: var(--canvas);
  border-bottom: 2px solid transparent;
  transition: border-color var(--t-fast) var(--ease), background-color var(--t-base) var(--ease);
}
.nav--scrolled { border-bottom-color: var(--border); }

.nav__logo {
  display: flex; align-items: center; gap: 0.65rem;
  text-decoration: none;
  font-weight: 800; font-size: 1.15rem;
  letter-spacing: -0.02em;
  color: var(--fg);
}
.nav__logo-mark {
  width: 30px; height: 30px;
  background: var(--fg);
  color: var(--on-fg);
  display: inline-flex; align-items: center; justify-content: center;
  font-weight: 800; font-size: 1rem;
  border-radius: var(--radius-md);
  transition: transform var(--t-fast) var(--ease);
}
.nav__logo:hover .nav__logo-mark { transform: rotate(-8deg) scale(1.05); }
.nav__logo-mark--on-fg { background: var(--accent); color: var(--on-accent); }

.nav__menu {
  list-style: none; display: flex; gap: 1.75rem;
  align-items: center;
}
.nav__menu a {
  font-size: 0.875rem; font-weight: 500;
  color: var(--fg-muted);
  text-decoration: none;
  text-transform: uppercase; letter-spacing: 0.08em;
  transition: color var(--t-fast) var(--ease);
  position: relative;
}
.nav__menu a:hover { color: var(--fg); }
.nav__menu a::after {
  content: '';
  position: absolute; bottom: -6px; left: 0; right: 0;
  height: 2px; background: var(--primary);
  transform: scaleX(0); transform-origin: left;
  transition: transform var(--t-fast) var(--ease);
}
.nav__menu a:hover::after { transform: scaleX(1); }
.nav__cta {
  padding: 0.5rem 1.1rem;
  background: var(--fg);
  color: var(--on-fg) !important;
  border-radius: var(--radius-md);
  text-transform: uppercase;
}
.nav__cta:hover { background: var(--primary); }
.nav__cta::after { display: none; }

.nav__toggle {
  display: none;
  width: 40px; height: 40px;
  flex-direction: column; gap: 5px;
  align-items: center; justify-content: center;
  border: 2px solid var(--fg);
  border-radius: var(--radius-md);
}
.nav__toggle-bar {
  display: block; width: 20px; height: 2px;
  background: var(--fg);
  transition: transform var(--t-fast) var(--ease), opacity var(--t-fast) var(--ease);
}
.nav--open .nav__toggle-bar:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav--open .nav__toggle-bar:nth-child(2) { opacity: 0; }
.nav--open .nav__toggle-bar:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- Section base ---------- */
.section {
  position: relative; overflow: hidden;
  padding: var(--section-pad-y) var(--section-pad-x);
}
.section--muted    { background: var(--muted); }
.section--primary  { background: var(--primary); color: var(--on-primary); }
.section--secondary{ background: var(--secondary); color: var(--on-secondary); }
.section--accent   { background: var(--accent); color: var(--on-accent); }
.section--fg       { background: var(--fg); color: var(--on-fg); }

.section__inner {
  position: relative; z-index: 1;
  max-width: var(--max-w); margin: 0 auto;
}

/* ---------- Section heading ---------- */
.section__eyebrow {
  display: inline-block;
  font-size: 0.75rem; font-weight: 600;
  text-transform: uppercase; letter-spacing: 0.14em;
  color: var(--primary);
  margin-bottom: 1.25rem;
  padding: 0.4rem 0.85rem;
  background: var(--muted);
  border-radius: var(--radius-full);
}
.section--primary .section__eyebrow { color: var(--on-primary); background: rgba(255,255,255,0.18); }
.section--accent .section__eyebrow  { color: var(--on-accent); background: rgba(17,24,39,0.10); }
.section--fg .section__eyebrow      { color: var(--accent); background: rgba(245,158,11,0.15); }
.section__eyebrow--on-accent { color: var(--on-accent); background: rgba(17,24,39,0.10); }

.section__title {
  font-weight: 800;
  font-size: clamp(2.1rem, 4.2vw, 3.2rem);
  line-height: 1.08;
  letter-spacing: -0.03em;
  margin-bottom: 1.25rem;
  color: var(--fg);
}
.section__title-hl { color: var(--primary); }
.section--primary .section__title { color: var(--on-primary); }
.section--primary .section__title-hl { color: var(--accent); }
.section--accent  .section__title { color: var(--on-accent); }
.section--accent  .section__title-hl { color: var(--fg); }
.section--accent  .section__title-hl--on-accent { color: var(--fg); }
.section--fg      .section__title { color: var(--on-fg); }
.section--fg      .section__title-hl { color: var(--accent); }
.section__title--on-accent { color: var(--on-accent); }

.section__lead {
  font-size: 1.0625rem;
  color: var(--fg-muted);
  line-height: 1.7;
  max-width: 62ch;
  margin-bottom: 3.5rem;
}
.section--primary .section__lead { color: var(--on-primary); opacity: 0.92; }
.section--accent  .section__lead { color: var(--on-accent); opacity: 0.85; }
.section--fg      .section__lead { color: var(--on-fg); opacity: 0.78; }
.section__lead--on-accent { color: var(--on-accent); opacity: 0.85; }

/* ---------- Tag ---------- */
.tag {
  display: inline-flex; align-items: center; gap: 0.35rem;
  padding: 0.3rem 0.75rem;
  font: 600 0.7rem/1 var(--font-sans);
  text-transform: uppercase; letter-spacing: 0.1em;
  border-radius: var(--radius-full);
  background: var(--fg); color: var(--on-fg);
}
.tag--primary  { background: var(--primary); color: var(--on-primary); }
.tag--secondary{ background: var(--secondary); color: var(--on-secondary); }
.tag--accent   { background: var(--accent); color: var(--on-accent); }
.tag--muted    { background: var(--muted); color: var(--fg); }
.tag--white    { background: var(--canvas); color: var(--fg); }

/* ---------- Button ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 0.5rem;
  height: 56px; padding: 0 28px;
  font: 600 0.875rem/1 var(--font-sans);
  text-transform: uppercase; letter-spacing: 0.08em;
  border-radius: var(--radius-md);
  text-decoration: none; cursor: pointer;
  border: 0;
  transition: background-color var(--t-fast) var(--ease),
              transform var(--t-fast) var(--ease),
              color var(--t-fast) var(--ease);
}
.btn:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; }
.btn__icon { width: 18px; height: 18px; }
.btn--primary {
  background: var(--primary); color: var(--on-primary);
}
.btn--primary:hover { background: var(--primary-hover); transform: scale(1.05); }
.btn--secondary {
  background: var(--muted-deep); color: var(--fg);
}
.btn--secondary:hover { background: var(--fg); color: var(--on-fg); transform: scale(1.05); }
.btn--outline {
  border: 4px solid var(--fg);
  background: transparent; color: var(--fg);
  height: 60px; padding: 0 32px;
}
.btn--outline:hover { background: var(--fg); color: var(--on-fg); }
.btn--on-fg {
  background: var(--on-fg); color: var(--fg);
}
.btn--on-fg:hover { background: var(--accent); color: var(--on-accent); transform: scale(1.05); }
.btn--on-accent {
  background: var(--fg); color: var(--on-fg);
  height: 64px; padding: 0 36px; font-size: 0.95rem;
}
.btn--on-accent:hover { background: var(--canvas); color: var(--fg); transform: scale(1.05); }

/* ---------- Card base ---------- */
.card {
  background: var(--canvas);
  border-radius: var(--radius-lg);
  padding: 2.5rem 2rem;
  transition: transform var(--t-base) var(--ease);
}
.card--canvas   { background: var(--canvas); color: var(--fg); }
.card--primary  { background: var(--primary); color: var(--on-primary); }
.card--secondary{ background: var(--secondary); color: var(--on-secondary); }
.card--accent   { background: var(--accent); color: var(--on-accent); }
.card--muted    { background: var(--muted); color: var(--fg); }
.card--fg       { background: var(--fg); color: var(--on-fg); }

.card__title { font-size: 1.25rem; font-weight: 700; letter-spacing: -0.01em; }
.card__body  { font-size: 0.95rem; line-height: 1.7; color: inherit; opacity: 0.85; }

/* ---------- Decorative shapes ---------- */
.hero__deco {
  position: absolute;
  pointer-events: none;
  z-index: 0;
}
.hero__deco--circle { width: 480px; height: 480px; border-radius: 50%; background: var(--primary); opacity: 0.10; top: -120px; right: -120px; }
.hero__deco--square { width: 240px; height: 240px; background: var(--accent); opacity: 0.12; transform: rotate(12deg); top: 240px; left: -60px; }
.hero__deco--bar    { width: 180px; height: 32px; background: var(--secondary); opacity: 0.15; transform: rotate(-6deg); top: 80px; left: 38%; }
.hero__deco--small  { width: 160px; height: 160px; border-radius: 50%; background: var(--secondary); opacity: 0.12; bottom: 60px; right: 12%; }
.hero__deco--ring   { width: 280px; height: 280px; border-radius: 50%; border: 32px solid var(--accent); opacity: 0.14; bottom: -80px; left: 18%; }

[data-theme="dark"] .hero__deco--circle { opacity: 0.18; }
[data-theme="dark"] .hero__deco--square { opacity: 0.20; }
[data-theme="dark"] .hero__deco--bar    { opacity: 0.22; }
[data-theme="dark"] .hero__deco--small  { opacity: 0.20; }
[data-theme="dark"] .hero__deco--ring   { opacity: 0.20; }

/* ---------- HERO ---------- */
.hero {
  position: relative; overflow: hidden;
  background: var(--canvas);
  padding: 9rem 2rem 6rem;
  display: flex; align-items: center;
}
.hero__inner {
  position: relative; z-index: 1;
  max-width: 880px; margin: 0 auto; width: 100%;
  display: grid; grid-template-columns: 1fr;
  gap: 0; align-items: center;
}

.hero__title {
  font-weight: 800;
  font-size: clamp(2.5rem, 5.2vw, 4.25rem);
  line-height: 1.05;
  letter-spacing: -0.035em;
  margin-bottom: 1.5rem;
  color: var(--fg);
}
.hero__title-hl { color: var(--primary); }
.hero__lead {
  font-size: 1.125rem;
  color: var(--fg-muted);
  line-height: 1.7;
  max-width: 56ch;
  margin-bottom: 2rem;
}
.hero__cta { display: flex; gap: 1rem; flex-wrap: wrap; margin-bottom: 3rem; }
.hero__stats {
  list-style: none; display: flex; gap: 2.5rem; flex-wrap: wrap;
  padding-top: 2rem;
  border-top: 2px solid var(--border);
}
.hero__stats li { display: flex; flex-direction: column; }
.hero__stat-num {
  font-size: 2.5rem; font-weight: 800;
  color: var(--fg);
  letter-spacing: -0.03em;
  line-height: 1;
  margin-bottom: 0.35rem;
}
.hero__stat-label {
  font-size: 0.75rem; font-weight: 500;
  color: var(--fg-muted);
  text-transform: uppercase; letter-spacing: 0.08em;
}

/* ---------- Hero Visual: three-lane apparatus ---------- */
.hero__visual {
  position: relative;
  display: grid; grid-template-columns: 1.05fr 0.5fr 1.05fr;
  gap: 1rem; align-items: stretch;
  min-height: 480px;
}
.hero__lane {
  position: relative;
  background: var(--muted);
  border-radius: var(--radius-lg);
  padding: 1.5rem 1.25rem;
  min-height: 480px;
  display: flex; flex-direction: column;
}
.hero__lane-label {
  display: inline-block;
  align-self: flex-start;
  font: 700 0.65rem/1 var(--font-sans);
  text-transform: uppercase; letter-spacing: 0.16em;
  color: var(--fg);
  background: var(--canvas);
  padding: 0.3rem 0.6rem;
  border-radius: var(--radius-full);
  margin-bottom: 1rem;
}
.hero__lane-label--right { align-self: flex-end; background: var(--accent); color: var(--on-accent); }

/* Lane A: timeline */
.hero__lane--record { background: var(--muted); }
.tl { list-style: none; position: relative; padding-left: 0; flex: 1; }
.tl::before {
  content: '';
  position: absolute;
  top: 6px; bottom: 6px; left: 5px;
  width: 2px;
  background: var(--primary);
}
.tl__node {
  position: relative;
  display: grid;
  grid-template-columns: 14px auto 1fr auto;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 0 0.5rem 0;
  font-size: 0.8rem;
  opacity: 0;
  transform: translateX(-12px);
  animation: tlNodeIn 0.5s var(--ease) forwards;
  animation-delay: calc(var(--i) * 0.12s + 0.4s);
}
@keyframes tlNodeIn {
  to { opacity: 1; transform: none; }
}
.tl__dot {
  width: 12px; height: 12px; border-radius: 50%;
  background: var(--primary);
  border: 3px solid var(--canvas);
  position: relative; left: -2px;
}
.tl__date {
  font: 700 0.75rem/1 var(--font-sans);
  color: var(--fg);
  white-space: nowrap;
}
.tl__text {
  color: var(--fg);
  font-weight: 500;
  line-height: 1.3;
  font-size: 0.78rem;
}
.tl__tag {
  font: 700 0.62rem/1 var(--font-sans);
  padding: 0.18rem 0.45rem;
  background: var(--muted-deep);
  color: var(--fg);
  border-radius: var(--radius-full);
  text-transform: uppercase; letter-spacing: 0.06em;
  white-space: nowrap;
}
.tl__tag--primary  { background: var(--primary);   color: var(--on-primary); }
.tl__tag--secondary{ background: var(--secondary); color: var(--on-secondary); }
.tl__tag--accent   { background: var(--accent);    color: var(--on-accent); }

/* Lane B: AI core */
.hero__lane--ai {
  background: var(--canvas);
  border: 2px solid var(--fg);
  position: relative;
  display: flex; align-items: center; justify-content: center;
  padding: 1rem;
}
.ai-core {
  position: relative;
  width: 200px; height: 200px;
  display: flex; align-items: center; justify-content: center;
}
.ai-core__ring {
  position: absolute; inset: 0;
  border-radius: 50%;
  border: 18px solid var(--primary);
  opacity: 0.85;
  animation: aiPulse 3s ease-in-out infinite;
}
@keyframes aiPulse {
  0%, 100% { transform: scale(1); opacity: 0.85; }
  50%      { transform: scale(1.08); opacity: 1; }
}
.ai-core__square {
  position: absolute; inset: 30px;
  background: var(--accent);
  opacity: 0.85;
  transform: rotate(15deg);
  animation: aiRotate 30s linear infinite;
}
@keyframes aiRotate { to { transform: rotate(375deg); } }
.ai-core__disk {
  position: relative; z-index: 1;
  width: 80px; height: 80px;
  border-radius: 50%;
  background: var(--fg);
  color: var(--on-fg);
  display: flex; align-items: center; justify-content: center;
  font-weight: 800; font-size: 1.1rem;
  letter-spacing: -0.02em;
}
.ai-arrow {
  position: absolute;
  width: 28px; height: 28px;
  display: flex; align-items: center; justify-content: center;
  color: var(--fg);
  background: var(--canvas);
  border: 2px solid var(--fg);
  border-radius: 50%;
}
.ai-arrow--up   { top: 8px;    left: 50%; transform: translateX(-50%) rotate(-90deg); }
.ai-arrow--down { bottom: 8px; left: 50%; transform: translateX(-50%) rotate(90deg); }
.ai-arrow svg { width: 14px; height: 14px; }

/* Lane C: stacked distill cards */
.hero__lane--distill {
  background: var(--muted);
  position: relative;
}
.distill {
  position: relative;
  flex: 1;
  display: flex; align-items: center; justify-content: center;
  min-height: 380px;
}
.distill__card {
  position: absolute;
  background: var(--canvas);
  border-radius: var(--radius-lg);
  padding: 1.1rem 1.25rem;
  width: 92%;
  transition: transform var(--t-base) var(--ease);
}
.distill__card h4 { font-size: 0.95rem; font-weight: 700; margin: 0.5rem 0 0.4rem; color: var(--fg); }
.distill__card p  { font-size: 0.8rem; color: var(--fg-muted); line-height: 1.5; }
.distill__card--1 {
  z-index: 3; transform: translateY(40px) rotate(0deg);
  animation: distillIn 0.6s var(--ease) forwards;
  animation-delay: 0.7s; opacity: 0;
}
.distill__card--2 {
  z-index: 2; transform: translate(-14px, -50px) rotate(-3deg);
  animation: distillIn 0.6s var(--ease) forwards;
  animation-delay: 0.85s; opacity: 0;
}
.distill__card--3 {
  z-index: 1; transform: translate(14px, -130px) rotate(3deg);
  animation: distillIn 0.6s var(--ease) forwards;
  animation-delay: 1.0s; opacity: 0;
}
@keyframes distillIn {
  to { opacity: 1; }
}

/* ---------- PAIN ---------- */
.pain-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem;
}
.pain-card__head {
  display: flex; align-items: center; gap: 0.85rem;
  margin-bottom: 1.25rem;
}
.pain-card__num {
  font: 800 1.1rem/1 var(--font-sans);
  color: var(--primary);
  background: var(--muted);
  padding: 0.4rem 0.6rem;
  border-radius: var(--radius-md);
  letter-spacing: -0.02em;
}
.card--canvas .pain-card__num { background: var(--primary); color: var(--on-primary); }
.pain-card__head .card__title { margin: 0; }
.pain-card__metric {
  margin-top: 1.75rem;
  padding-top: 1.5rem;
  border-top: 2px solid var(--border);
}
.pain-card__metric strong {
  display: block;
  font: 800 2.5rem/1 var(--font-sans);
  color: var(--primary);
  letter-spacing: -0.03em;
  margin-bottom: 0.35rem;
}
.pain-card__metric span {
  font-size: 0.85rem; color: var(--fg-muted);
  line-height: 1.5;
}

/* ---------- VALUE (section--primary) ---------- */
.value-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem;
}
.value-card {
  background: var(--canvas);
  color: var(--fg);
  border-radius: var(--radius-lg);
  padding: 2rem 1.75rem;
  display: flex; flex-direction: column;
  transition: transform var(--t-base) var(--ease);
}
.value-card:hover { transform: scale(1.02); }
.value-card__icon {
  width: 56px; height: 56px;
  border-radius: var(--radius-full);
  background: var(--primary); color: var(--on-primary);
  display: inline-flex; align-items: center; justify-content: center;
  margin-bottom: 1.25rem;
  transition: transform var(--t-base) var(--ease);
}
.value-card:hover .value-card__icon { transform: rotate(8deg) scale(1.08); }
.value-card__icon svg { width: 28px; height: 28px; }
.value-card .tag { align-self: flex-start; margin-bottom: 0.85rem; }
.value-card__title {
  font-size: 1.5rem; font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 0.75rem;
}
.value-card__body {
  font-size: 0.92rem; line-height: 1.65;
  color: var(--fg-muted);
  margin-bottom: 1.5rem;
}
.value-card__mock {
  margin-top: auto;
  padding: 1.1rem 1.25rem;
  background: var(--muted);
  border-radius: var(--radius-md);
  font-size: 0.85rem;
  min-height: 170px;
}

/* mock: timeline */
.mock-timeline { display: flex; flex-direction: column; gap: 0.5rem; }
.mock-timeline__row {
  display: grid; grid-template-columns: 56px 1fr auto;
  align-items: center; gap: 0.6rem;
  padding: 0.5rem 0.7rem;
  background: var(--canvas);
  border-radius: var(--radius-md);
  font-size: 0.78rem;
  border-left: 3px solid var(--primary);
}
.mock-timeline__row span:first-child {
  font-weight: 700; color: var(--fg-muted);
}
.mock-timeline__row span:nth-child(2) { color: var(--fg); font-weight: 500; }
.mock-timeline__row em {
  font-style: normal;
  font: 700 0.62rem/1 var(--font-sans);
  text-transform: uppercase; letter-spacing: 0.06em;
  padding: 0.18rem 0.5rem;
  background: var(--primary); color: var(--on-primary);
  border-radius: var(--radius-full);
}

/* mock: insight */
.mock-insight { display: flex; flex-direction: column; gap: 0.55rem; }
.mock-insight__row {
  display: flex; align-items: center; gap: 0.65rem;
  padding: 0.55rem 0.75rem;
  background: var(--canvas);
  border-radius: var(--radius-md);
  font-size: 0.8rem;
  color: var(--fg);
  line-height: 1.4;
}
.mock-insight__dot {
  width: 8px; height: 8px; border-radius: 50%;
  flex-shrink: 0;
}
.mock-insight__dot--primary  { background: var(--primary); }
.mock-insight__dot--secondary{ background: var(--secondary); }
.mock-insight__dot--accent   { background: var(--accent); }

/* mock: report */
.mock-report { display: flex; flex-direction: column; gap: 0.4rem; font-family: 'Outfit', monospace; }
.mock-report__head {
  display: flex; align-items: center; gap: 0.5rem;
  padding: 0.5rem 0.7rem;
  background: var(--fg); color: var(--on-fg);
  border-radius: var(--radius-md);
  margin-bottom: 0.35rem;
}
.mock-report__dot { width: 8px; height: 8px; border-radius: 50%; background: var(--secondary); }
.mock-report__title { font: 700 0.75rem/1 var(--font-sans); letter-spacing: 0.04em; }
.mock-report__line {
  padding: 0.45rem 0.7rem;
  background: var(--canvas);
  border-left: 3px solid var(--accent);
  font: 600 0.78rem/1 var(--font-sans);
  color: var(--fg);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
}

/* ---------- WORKFLOW ---------- */
.flow {
  position: relative;
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.25rem;
  margin-top: 1rem;
}
.flow__progress {
  position: absolute; top: -18px; left: 0; right: 0;
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 1.25rem;
  height: 6px;
  z-index: 0;
}
.flow__progress-bar {
  display: block; height: 100%;
  transform-origin: left;
  transform: scaleX(0);
  transition: transform 0.9s var(--ease);
}
.flow--in-view .flow__progress-bar--1 { background: var(--primary);   transform: scaleX(1); transition-delay: 0.4s; }
.flow--in-view .flow__progress-bar--2 { background: var(--secondary); transform: scaleX(1); transition-delay: 0.6s; }
.flow--in-view .flow__progress-bar--3 { background: var(--accent);    transform: scaleX(1); transition-delay: 0.8s; }
.flow--in-view .flow__progress-bar--4 { background: var(--primary);   transform: scaleX(1); transition-delay: 1.0s; }

.flow__step {
  position: relative; z-index: 1;
  background: var(--canvas);
  border-radius: var(--radius-lg);
  padding: 2rem 1.5rem;
  transition: transform var(--t-base) var(--ease);
}
.flow__step:hover { transform: translateY(-4px) scale(1.02); }
.flow__bar {
  display: block; width: 32px; height: 4px;
  margin-bottom: 1.25rem;
}
.flow__step--1 .flow__bar { background: var(--primary); }
.flow__step--2 .flow__bar { background: var(--secondary); }
.flow__step--3 .flow__bar { background: var(--accent); }
.flow__step--4 .flow__bar { background: var(--primary); }
.flow__num {
  display: block;
  font: 800 2.5rem/1 var(--font-sans);
  letter-spacing: -0.04em;
  margin-bottom: 0.85rem;
}
.flow__step--1 .flow__num { color: var(--primary); }
.flow__step--2 .flow__num { color: var(--secondary); }
.flow__step--3 .flow__num { color: var(--accent); }
.flow__step--4 .flow__num { color: var(--primary); }
.flow__title {
  font-size: 1.1rem; font-weight: 700;
  line-height: 1.2; letter-spacing: -0.01em;
  margin-bottom: 0.5rem;
}
.flow__title em {
  font-style: normal; font-weight: 500;
  font-size: 0.9rem; color: var(--fg-muted);
  display: inline-block; margin-top: 0.2rem;
}
.flow__desc { font-size: 0.88rem; color: var(--fg-muted); line-height: 1.6; }

/* ---------- SCENARIOS (2x2) ---------- */
.scn-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem;
  align-items: stretch;
}
.scn-card {
  border-radius: var(--radius-lg);
  padding: 2.25rem 2rem;
  display: flex; flex-direction: column;
  transition: transform var(--t-base) var(--ease);
  min-height: 280px;
}
.scn-card:hover { transform: scale(1.02); }
.scn-card__head { margin-bottom: 1rem; }
.scn-card__head .tag { margin-bottom: 1rem; }
.scn-card__title {
  font-size: 1.4rem; font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.2;
}
.scn-card__body {
  font-size: 0.95rem; line-height: 1.65;
  margin-bottom: 1.5rem;
  opacity: 0.92;
}
.scn-card__example {
  margin-top: auto;
  padding: 1.1rem 1.25rem;
  background: var(--canvas);
  border-radius: var(--radius-md);
  font-size: 0.85rem; line-height: 1.55;
  color: var(--fg);
}
.scn-card__example p { color: var(--fg-muted); font-size: 0.85rem; }
.scn-card__example-label {
  display: block;
  font: 700 0.65rem/1 var(--font-sans);
  text-transform: uppercase; letter-spacing: 0.12em;
  color: var(--fg);
  margin-bottom: 0.5rem;
}

.scn-card--a { background: var(--primary);   color: var(--on-primary); }
.scn-card--a .scn-card__example { background: var(--canvas); color: var(--fg); }
.scn-card--a .scn-card__example-label { color: var(--primary); }
.scn-card--a .scn-card__example p { color: var(--fg-muted); }

.scn-card--b { background: var(--secondary); color: var(--on-secondary); }
.scn-card--b .scn-card__example { background: var(--canvas); color: var(--fg); }
.scn-card--b .scn-card__example-label { color: var(--secondary); }
.scn-card--b .scn-card__example p { color: var(--fg-muted); }

.scn-card--c { background: var(--accent);    color: var(--on-accent); }
.scn-card--c .scn-card__example { background: var(--canvas); color: var(--fg); }
.scn-card--c .scn-card__example-label { color: var(--accent); }
.scn-card--c .scn-card__example p { color: var(--fg-muted); }

.scn-card--d { background: var(--canvas);    color: var(--fg); border: 2px solid var(--fg); }
.scn-card--d .scn-card__example { background: var(--muted); }
.scn-card--d .scn-card__example-label { color: var(--primary); }

/* ---------- ORIGIN (section--fg) ---------- */
.origin {
  text-align: center;
  max-width: 880px;
  margin: 0 auto;
  position: relative; z-index: 1;
}
.origin .tag { margin: 0 auto 2rem; display: inline-flex; }
.origin__quote {
  font-size: clamp(1.25rem, 2.4vw, 1.75rem);
  font-weight: 600;
  line-height: 1.5;
  color: var(--on-fg);
  letter-spacing: -0.01em;
  margin-bottom: 1.5rem;
  font-style: normal;
}
.origin__cite {
  font-size: 0.875rem;
  color: var(--accent);
  text-transform: uppercase; letter-spacing: 0.12em;
  font-weight: 600;
  margin-bottom: 2.5rem;
}
.origin__followup {
  font-size: 1rem;
  color: var(--on-fg);
  opacity: 0.75;
  line-height: 1.7;
}
.origin__deco {
  position: absolute;
  top: 50%; left: 50%;
  width: 500px; height: 500px;
  border-radius: 50%;
  border: 60px solid var(--accent);
  opacity: 0.08;
  transform: translate(-50%, -50%);
  z-index: -1;
  pointer-events: none;
}

/* ---------- CTA (section--accent) ---------- */
.cta {
  text-align: center;
  position: relative; z-index: 1;
}
.cta__row {
  display: flex; gap: 1rem; flex-wrap: wrap;
  justify-content: center;
  margin-top: 2rem;
}
.cta__deco {
  position: absolute;
  pointer-events: none;
  z-index: 0;
}
.cta__deco--square {
  width: 220px; height: 220px;
  background: var(--canvas);
  opacity: 0.18;
  transform: rotate(15deg);
  top: 20px; right: -60px;
}
.cta__deco--circle {
  width: 320px; height: 320px;
  border-radius: 50%;
  background: var(--fg);
  opacity: 0.10;
  bottom: -120px; left: -100px;
}

/* ---------- FOOTER ---------- */
.footer {
  background: var(--fg);
  color: var(--on-fg);
  padding: 4.5rem 2rem 2rem;
}
.footer__inner {
  max-width: var(--max-w); margin: 0 auto;
  display: grid; grid-template-columns: 1.4fr 1fr; gap: 3rem;
  align-items: start;
}
.footer__logo {
  display: flex; align-items: center; gap: 0.6rem;
  font: 800 1.35rem/1 var(--font-sans);
  letter-spacing: -0.02em;
  margin-bottom: 1rem;
}
.footer__tag {
  font-size: 0.95rem; line-height: 1.6;
  opacity: 0.7;
  max-width: 36ch;
}
.footer__nav {
  display: grid; grid-template-columns: 1fr 1fr; gap: 2rem;
  justify-self: end;
}
.footer__col h4 {
  font: 600 0.7rem/1 var(--font-sans);
  text-transform: uppercase; letter-spacing: 0.12em;
  margin-bottom: 1rem;
  color: var(--accent);
}
.footer__col ul { list-style: none; display: flex; flex-direction: column; gap: 0.65rem; }
.footer__col a {
  font-size: 0.9rem;
  color: var(--on-fg);
  text-decoration: none;
  opacity: 0.75;
  transition: opacity var(--t-fast) var(--ease);
}
.footer__col a:hover { opacity: 1; }
.footer__bottom {
  max-width: var(--max-w); margin: 3rem auto 0;
  padding-top: 2rem;
  border-top: 2px solid rgba(255,255,255,0.10);
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 1rem;
  font-size: 0.78rem; opacity: 0.6;
}

/* ---------- Scroll reveal ---------- */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.55s var(--ease), transform 0.55s var(--ease);
}
.reveal.is-visible { opacity: 1; transform: none; }
.reveal-d-1 { transition-delay: 0.08s; }
.reveal-d-2 { transition-delay: 0.16s; }
.reveal-d-3 { transition-delay: 0.24s; }
.reveal-d-4 { transition-delay: 0.32s; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    transition-duration: 0.001ms !important;
  }
  .reveal { opacity: 1; transform: none; }
  .tl__node { opacity: 1; transform: none; animation: none; }
  .distill__card { opacity: 1; animation: none; }
  .flow__progress-bar { transform: scaleX(1); }
}

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 1100px) {
  .hero__visual { grid-template-columns: 1fr 0.7fr 1fr; }
  .hero__lane { padding: 1.25rem 1rem; }
  .tl__text { font-size: 0.72rem; }
  .ai-core { width: 160px; height: 160px; }
}

@media (max-width: 900px) {
  :root { --section-pad-y: 5.5rem; }

  /* Nav: collapse to hamburger */
  .nav__toggle { display: flex; }
  .nav__menu {
    position: fixed; top: 70px; left: 0; right: 0;
    flex-direction: column;
    background: var(--canvas);
    padding: 1.5rem 2rem 2rem;
    gap: 1.25rem;
    border-bottom: 2px solid var(--border);
    transform: translateY(-120%);
    transition: transform var(--t-base) var(--ease);
    align-items: flex-start;
  }
  .nav--open .nav__menu { transform: translateY(0); }

  /* Hero: stack */
  .hero { padding: 7rem 1.5rem 3rem; min-height: auto; }
  .hero__inner { grid-template-columns: 1fr; gap: 3rem; }
  .hero__visual {
    grid-template-columns: 1fr 0.4fr 1fr;
    min-height: 420px;
  }

  /* Section grids */
  .pain-grid, .value-grid, .flow { grid-template-columns: 1fr 1fr; }
  .scn-grid { grid-template-columns: 1fr 1fr; }

  /* Footer */
  .footer__inner { grid-template-columns: 1fr; gap: 2rem; }
  .footer__nav { justify-self: start; }
}

@media (max-width: 640px) {
  :root { --section-pad-y: 4rem; --section-pad-x: 1.25rem; }

  .nav { padding: 1rem 1.25rem; }
  .nav__logo-text { display: none; }

  .hero { padding: 6rem 1.25rem 3rem; }
  .hero__title { font-size: 2.2rem; }
  .hero__lead { font-size: 1rem; }
  .hero__stats { gap: 1.5rem; }
  .hero__stat-num { font-size: 1.85rem; }
  .hero__cta { flex-direction: column; align-items: stretch; }
  .hero__cta .btn { width: 100%; justify-content: center; }

  /* Hero visual: keep 3-lane but compress */
  .hero__visual {
    grid-template-columns: 1fr;
    gap: 0.75rem;
    min-height: auto;
  }
  .hero__lane { min-height: auto; }
  .hero__lane--ai { min-height: 240px; }
  .distill { min-height: 320px; }

  /* Grids → 1 col */
  .pain-grid, .value-grid, .flow, .scn-grid { grid-template-columns: 1fr; }
  .scn-card { min-height: auto; }

  /* Flow becomes vertical with right arrow */
  .flow__progress {
    grid-template-columns: 1fr;
    top: 0; left: 18px; right: auto; bottom: 0;
    width: 6px; height: auto;
  }
  .flow__progress-bar { transform-origin: top; }
  .flow--in-view .flow__progress-bar { transform: scaleY(1); }

  .section__title { font-size: 1.85rem; }
  .section__lead { font-size: 0.95rem; margin-bottom: 2.5rem; }

  .origin__quote { font-size: 1.1rem; }
  .origin__deco { width: 280px; height: 280px; border-width: 32px; }

  .cta__row .btn { width: 100%; justify-content: center; }
  .cta__deco--square { width: 120px; height: 120px; right: -30px; top: 0; }
  .cta__deco--circle { width: 180px; height: 180px; left: -60px; bottom: -60px; }

  .footer__nav { grid-template-columns: 1fr 1fr; }
}