:root {
  --black: #030506;
  --blue-950: #060b12;
  --blue-900: #0a1320;
  --blue-850: #0e1c2b;
  --green-950: #102117;
  --brown-950: #181412;
  --graphite: #232a31;
  --smoke: #4b5560;
  --mist: #8b959d;
  --white: #d8dcdd;
  --paper: #b7bcb9;
  --line: rgba(216, 220, 221, 0.16);
  --line-strong: rgba(216, 220, 221, 0.34);
  --amber-dim: #7d6d50;
  --green-dim: #5f7563;
  --danger-dim: #8a5b54;
  --max: 1180px;
  --display: 'Instrument Serif', Georgia, serif;
  --body: 'Sora', sans-serif;
  --mono: 'IBM Plex Mono', monospace;
  --ease: cubic-bezier(0.19, 1, 0.22, 1);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; background: var(--black); }
body {
  min-height: 100vh;
  margin: 0;
  color: var(--white);
  background:
    radial-gradient(circle at 38% 12%, rgba(216, 220, 221, 0.075), transparent 24rem),
    radial-gradient(circle at 18% 12%, rgba(95, 117, 99, 0.58), transparent 34rem),
    radial-gradient(circle at 82% 3%, rgba(14, 28, 43, 0.98), transparent 38rem),
    linear-gradient(180deg, var(--black), var(--blue-950) 38%, var(--brown-950) 100%);
  font-family: var(--body);
  line-height: 1.55;
  overflow-x: hidden;
}

body::before {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  background: radial-gradient(circle at center, transparent 0 58%, rgba(0, 0, 0, 0.42) 100%);
  z-index: -1;
}

#memory-field,
.grain {
  position: fixed;
  inset: 0;
  pointer-events: none;
}

#memory-field {
  z-index: -3;
  opacity: 0.84;
}

.grain {
  z-index: -2;
  opacity: 0.17;
  background-image:
    linear-gradient(rgba(255,255,255,.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.024) 1px, transparent 1px);
  background-size: 34px 34px, 34px 34px;
  mask-image: linear-gradient(to bottom, black 0%, transparent 90%);
}

.scroll-meter {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 50;
  width: 100%;
  height: 2px;
  background: transparent;
}

.scroll-meter span {
  display: block;
  width: calc(var(--scroll, 0) * 100%);
  height: 100%;
  background: linear-gradient(90deg, var(--mist), var(--green-dim), var(--amber-dim));
  box-shadow: 0 0 18px rgba(183, 188, 185, 0.28);
}

.site-header {
  position: fixed;
  top: 18px;
  left: 50%;
  z-index: 20;
  display: grid;
  grid-template-columns: auto auto auto;
  gap: 22px;
  align-items: center;
  justify-content: center;
  width: max-content;
  max-width: calc(100% - 32px);
  padding: 10px 12px;
  border: 1px solid var(--line);
  background: rgba(3, 5, 6, 0.76);
  backdrop-filter: blur(18px);
  transform: translateX(-50%);
}

.brand-mark,
.nav-cta,
.top-nav a,
.button {
  color: var(--white);
  text-decoration: none;
}

.brand-mark {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--mono);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.brand-glyph {
  display: grid;
  width: 32px;
  height: 32px;
  place-items: center;
  border: 1px solid var(--line-strong);
  background: linear-gradient(135deg, var(--blue-850), var(--green-950));
  font-family: var(--display);
  font-size: 1.35rem;
}

.top-nav {
  display: flex;
  justify-content: center;
  gap: 18px;
}

.top-nav a,
.nav-cta,
.kicker,
.stage-label,
.memory-node span,
.memory-node small,
.artifact-card span,
.mode-panel span,
.layer-card span {
  font-family: var(--mono);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.top-nav a {
  position: relative;
  color: var(--mist);
  transition: color 220ms var(--ease), text-shadow 220ms var(--ease);
}
.top-nav a::after {
  content: '';
  position: absolute;
  right: 0;
  bottom: -8px;
  left: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--white), transparent);
  opacity: 0;
  transform: scaleX(.42);
  transition: opacity 220ms var(--ease), transform 220ms var(--ease);
}
.top-nav a:hover,
.top-nav a.is-active,
.top-nav a[aria-current='true'],
.nav-cta:hover {
  color: var(--white);
  text-shadow: 0 0 18px rgba(216, 220, 221, 0.26);
}
.top-nav a.is-active::after,
.top-nav a[aria-current='true']::after {
  opacity: .86;
  transform: scaleX(1);
}

.nav-cta {
  padding: 9px 12px;
  border: 1px solid var(--line-strong);
  background: rgba(216, 220, 221, 0.055);
  font-family: var(--mono);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.scene {
  position: relative;
  width: min(calc(100% - 36px), var(--max));
  margin: 0 auto;
  padding: 130px 0;
  opacity: var(--scene-presence, 1);
  transform: translate3d(0, calc((var(--scene-progress, 0.5) - 0.5) * -26px), 0);
  transition: opacity 360ms var(--ease);
}

.scene::after {
  content: '';
  position: absolute;
  inset: 10% -4% auto;
  height: 1px;
  pointer-events: none;
  background: linear-gradient(90deg, transparent, rgba(216, 220, 221, 0.28), transparent);
  opacity: calc(var(--scene-presence, 1) * 0.44);
  transform: scaleX(var(--scene-presence, 1));
  transform-origin: left center;
}

.scene-left { transform: translate3d(calc((0.5 - var(--scene-progress, 0.5)) * 44px), 0, 0); }
.scene-rise { transform: translate3d(0, calc((1 - var(--scene-presence, 1)) * 58px), 0); }
.scene-debris { transform: translate3d(0, calc((var(--scene-progress, 0.5) - 0.5) * 34px), 0); }
.scene-stack { transform: perspective(1200px) rotateX(calc((0.5 - var(--scene-progress, 0.5)) * 3deg)); }

.hero {
  display: grid;
  grid-template-columns: minmax(0, 0.98fr) minmax(360px, 0.82fr);
  gap: 56px;
  align-items: center;
  min-height: 100vh;
  padding-top: 150px;
  opacity: 1;
}

.kicker {
  margin: 0 0 18px;
  color: var(--mist);
}

h1,
h2,
h3,
p { margin: 0; }

h1,
h2 {
  font-family: var(--display);
  font-weight: 400;
  letter-spacing: -0.055em;
  line-height: 0.92;
}

h1 {
  max-width: 11ch;
  font-size: clamp(4.2rem, 9.4vw, 9rem);
}

h2 {
  max-width: 13ch;
  font-size: clamp(3.4rem, 8.2vw, 8rem);
}

h3 {
  font-size: clamp(1.35rem, 2vw, 2rem);
  line-height: 1.05;
}

.hero-subhead,
.section-heading p,
.final-cta p {
  max-width: 650px;
  margin-top: 24px;
  color: var(--paper);
  font-size: clamp(1.05rem, 1.6vw, 1.34rem);
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 34px;
}

.button {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  padding: 13px 18px;
  border: 1px solid var(--line-strong);
  font-family: var(--mono);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  transition: transform 260ms var(--ease), background 260ms var(--ease), border-color 260ms var(--ease);
}

.button:hover { transform: translateY(-2px); }
.button.primary { background: var(--white); color: var(--black); }
.button.secondary { background: rgba(216, 220, 221, 0.055); color: var(--white); }

.hero-stage {
  position: relative;
  min-height: 620px;
  border: 1px solid var(--line);
  background:
    linear-gradient(135deg, rgba(216,220,221,.08), transparent 24%),
    radial-gradient(circle at 70% 20%, rgba(95,117,99,.17), transparent 23rem),
    rgba(6, 11, 18, 0.74);
  box-shadow: 0 44px 120px rgba(0,0,0,.42);
  overflow: hidden;
}

.hero-stage::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: linear-gradient(var(--line) 1px, transparent 1px), linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 44px 44px;
  opacity: 0.38;
}

.stage-label {
  position: absolute;
  top: 18px;
  left: 18px;
  z-index: 2;
  color: var(--mist);
}

.lineage-map {
  position: absolute;
  inset: 60px 26px 74px;
}

.connector-web {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  fill: none;
  stroke: rgba(216, 220, 221, 0.24);
  stroke-width: 1.4;
}

.connector-web .hot {
  stroke: rgba(138, 91, 84, 0.78);
  stroke-dasharray: 9 10;
  animation: trace 4.4s linear infinite;
}

.memory-node {
  position: absolute;
  z-index: 2;
  width: min(245px, 46%);
  padding: 16px;
  border: 1px solid var(--line-strong);
  background: rgba(3, 5, 6, 0.8);
  box-shadow: 0 24px 80px rgba(0,0,0,.34);
}

.memory-node strong {
  display: block;
  margin: 10px 0;
  font-size: 1rem;
  line-height: 1.25;
}

.memory-node span { color: var(--mist); }
.memory-node small { color: var(--smoke); line-height: 1.45; }
.node-decision { top: 0; left: 0; }
.node-assumption { top: 142px; right: 16px; border-color: rgba(95,117,99,.64); }
.node-conflict { top: 245px; left: 74px; border-color: rgba(138,91,84,.76); }
.node-action { right: 0; bottom: 0; border-color: rgba(125,109,80,.72); }

.evidence-tape {
  position: absolute;
  right: -34px;
  bottom: 24px;
  left: -34px;
  display: flex;
  gap: 12px;
  padding: 10px 0;
  border-block: 1px solid var(--line);
  color: var(--mist);
  font-family: var(--mono);
  font-size: .72rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  transform: rotate(-3deg);
  white-space: nowrap;
}

.evidence-tape span { animation: tape 12s linear infinite; }

.assumption-drift {
  position: absolute;
  right: 24px;
  top: 72px;
  z-index: 3;
  width: 180px;
  padding: 12px;
  border: 1px solid rgba(125, 109, 80, 0.48);
  background: rgba(24, 20, 18, 0.7);
  color: var(--mist);
  font-family: var(--mono);
  font-size: 0.64rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.assumption-drift i,
.assumption-drift b,
.assumption-drift em {
  display: block;
  height: 1px;
  margin-top: 14px;
  background: linear-gradient(90deg, var(--smoke), var(--amber-dim), transparent);
  transform-origin: left center;
}
.assumption-drift i { width: 42%; }
.assumption-drift b { width: 68%; animation: drift-line 5.5s var(--ease) infinite alternate; }
.assumption-drift em { width: 88%; animation: drift-line 7s var(--ease) infinite alternate-reverse; }

.split-heading {
  display: grid;
  grid-template-columns: 0.72fr 1fr;
  gap: 42px;
  align-items: start;
}

.anti-category {
  padding-top: 60px;
}

.not-this-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin-top: 58px;
}

.strike-card,
.truth-card,
.artifact-card,
.mode-panel,
.layer-card,
.why-grid article {
  border: 1px solid var(--line);
  background: rgba(6, 11, 18, 0.64);
  box-shadow: 0 30px 100px rgba(0,0,0,.22);
}

.strike-card,
.truth-card {
  min-height: 220px;
  padding: 22px;
  color: var(--mist);
  font-size: clamp(1.45rem, 2.3vw, 2.35rem);
  line-height: 1;
  letter-spacing: -0.04em;
}

.strike-card {
  text-decoration: line-through;
  text-decoration-color: rgba(138, 91, 84, .78);
  text-decoration-thickness: 2px;
}

.truth-card {
  grid-column: span 1;
  background: linear-gradient(180deg, rgba(16,33,23,.74), rgba(3,5,6,.88));
  color: var(--white);
}

.scenario-heading {
  margin-bottom: 46px;
}

.scenario-layout {
  display: grid;
  grid-template-columns: minmax(420px, 0.98fr) minmax(0, 0.82fr);
  gap: 64px;
  align-items: start;
}

.scenario-stage {
  position: sticky;
  top: 120px;
  min-height: 74vh;
  border: 1px solid var(--line);
  background:
    radial-gradient(circle at 28% 20%, rgba(95, 117, 99, 0.15), transparent 24rem),
    radial-gradient(circle at 82% 72%, rgba(125, 109, 80, 0.16), transparent 22rem),
    linear-gradient(145deg, rgba(14, 28, 43, 0.86), rgba(3, 5, 6, 0.88) 62%, rgba(24, 20, 18, 0.76));
  box-shadow: 0 42px 130px rgba(0, 0, 0, 0.42);
  overflow: hidden;
  isolation: isolate;
}

.scenario-stage::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(216, 220, 221, 0.055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(216, 220, 221, 0.04) 1px, transparent 1px);
  background-size: 46px 46px;
  opacity: 0.42;
  transform: translate3d(calc(var(--scenario-progress, 0) * -24px), calc(var(--scenario-progress, 0) * -18px), 0);
}

.scenario-stage::after {
  content: '';
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(180deg, rgba(3,5,6,.15), transparent 28%, rgba(3,5,6,.42)),
    radial-gradient(circle at center, transparent 0 48%, rgba(0,0,0,.48) 100%);
  z-index: 6;
}

.scenario-stage-label {
  position: absolute;
  top: 18px;
  right: 18px;
  left: 18px;
  z-index: 8;
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--mist);
  font-family: var(--mono);
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.scenario-stage-label i {
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, rgba(216, 220, 221, 0.25), transparent);
  transform-origin: left center;
  transform: scaleX(calc(0.18 + var(--scenario-progress, 0) * 0.82));
}

.scenario-artifacts,
.scenario-extraction,
.scenario-graph,
.scenario-action-card {
  position: absolute;
  inset: 0;
  z-index: 2;
}

.scenario-doc {
  position: absolute;
  width: min(235px, 42%);
  padding: 15px;
  border: 1px solid rgba(216, 220, 221, 0.18);
  background: rgba(3, 5, 6, 0.76);
  box-shadow: 0 28px 90px rgba(0,0,0,.38);
  opacity: 0;
  transform: translate3d(0, 34px, 0) rotate(var(--doc-rotation, 0deg));
  transition: opacity 720ms var(--ease), transform 900ms var(--ease), border-color 720ms var(--ease);
}

.scenario-doc span,
.extract-tag,
.graph-node span,
.scenario-action-card span {
  font-family: var(--mono);
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.11em;
  text-transform: uppercase;
}

.scenario-doc span { color: var(--mist); }
.scenario-doc strong {
  display: block;
  margin-top: 10px;
  color: var(--paper);
  font-size: 0.9rem;
  line-height: 1.28;
}

.doc-roadmap { top: 102px; left: 8%; --doc-rotation: -4deg; }
.doc-planning { top: 156px; right: 9%; --doc-rotation: 3deg; }
.doc-review { bottom: 155px; left: 13%; --doc-rotation: 2deg; }
.doc-paste { right: 12%; bottom: 102px; --doc-rotation: -3deg; }

.scenario-story[data-active-step='0'] .scenario-doc,
.scenario-story[data-active-step='1'] .scenario-doc,
.scenario-story[data-active-step='2'] .scenario-doc,
.scenario-story[data-active-step='3'] .scenario-doc,
.scenario-story[data-active-step='4'] .scenario-doc {
  opacity: 1;
  transform: translate3d(0, 0, 0) rotate(var(--doc-rotation, 0deg));
}

.scenario-story[data-active-step='1'] .scenario-doc,
.scenario-story[data-active-step='2'] .scenario-doc,
.scenario-story[data-active-step='3'] .scenario-doc,
.scenario-story[data-active-step='4'] .scenario-doc {
  opacity: 0.48;
  border-color: rgba(216, 220, 221, 0.12);
}

.extract-tag {
  position: absolute;
  z-index: 4;
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 8px 10px;
  border: 1px solid rgba(95,117,99,.48);
  background: rgba(16,33,23,.76);
  color: var(--white);
  opacity: 0;
  transform: translate3d(-16px, 18px, 0);
  transition: opacity 520ms var(--ease), transform 680ms var(--ease);
}

.tag-decision { top: 112px; left: 24%; }
.tag-assumption { top: 194px; right: 16%; transition-delay: 60ms; }
.tag-constraint { bottom: 216px; left: 20%; transition-delay: 120ms; }
.tag-commitment { right: 17%; bottom: 152px; transition-delay: 180ms; }
.tag-outcome { top: 48%; left: 42%; border-color: rgba(125,109,80,.58); background: rgba(24,20,18,.78); transition-delay: 240ms; }

.scenario-story[data-active-step='1'] .extract-tag,
.scenario-story[data-active-step='2'] .extract-tag,
.scenario-story[data-active-step='3'] .extract-tag,
.scenario-story[data-active-step='4'] .extract-tag {
  opacity: 1;
  transform: translate3d(0, 0, 0);
}

.scenario-story[data-active-step='2'] .scenario-extraction,
.scenario-story[data-active-step='3'] .scenario-extraction,
.scenario-story[data-active-step='4'] .scenario-extraction {
  opacity: 0.34;
}

.scenario-graph {
  opacity: 0;
  transform: scale(0.96);
  transition: opacity 720ms var(--ease), transform 820ms var(--ease);
}

.scenario-graph svg {
  position: absolute;
  inset: 80px 22px 62px;
  width: calc(100% - 44px);
  height: calc(100% - 142px);
  fill: none;
  z-index: 2;
}

.scenario-graph .line {
  stroke: rgba(216, 220, 221, 0.23);
  stroke-width: 1.35;
  stroke-dasharray: 520;
  stroke-dashoffset: 520;
  transition: stroke-dashoffset 950ms var(--ease), stroke 500ms var(--ease), filter 500ms var(--ease), opacity 500ms var(--ease);
}

.graph-node {
  position: absolute;
  z-index: 3;
  width: min(240px, 42%);
  padding: 14px;
  border: 1px solid rgba(216, 220, 221, 0.24);
  background: rgba(3, 5, 6, 0.82);
  box-shadow: 0 24px 90px rgba(0,0,0,.34);
  opacity: 0;
  transform: translate3d(0, 18px, 0);
  transition: opacity 620ms var(--ease), transform 760ms var(--ease), border-color 500ms var(--ease), background 500ms var(--ease);
}

.graph-node span { color: var(--mist); }
.graph-node strong {
  display: block;
  margin-top: 9px;
  color: var(--white);
  font-size: 0.94rem;
  line-height: 1.22;
}

.graph-decision { top: 42%; left: 38%; }
.graph-assumption { top: 118px; left: 8%; }
.graph-constraint { bottom: 120px; left: 7%; }
.graph-conflict { top: 105px; right: 7%; border-color: rgba(125,109,80,.38); }
.graph-dependency { right: 7%; bottom: 105px; border-color: rgba(95,117,99,.42); }

.scenario-story[data-active-step='2'] .scenario-graph,
.scenario-story[data-active-step='3'] .scenario-graph,
.scenario-story[data-active-step='4'] .scenario-graph {
  opacity: 1;
  transform: scale(1);
}

.scenario-story[data-active-step='2'] .graph-node,
.scenario-story[data-active-step='3'] .graph-node,
.scenario-story[data-active-step='4'] .graph-node {
  opacity: 1;
  transform: translate3d(0, 0, 0);
}

.scenario-story[data-active-step='2'] .line,
.scenario-story[data-active-step='3'] .line,
.scenario-story[data-active-step='4'] .line {
  stroke-dashoffset: 0;
}

.scenario-story[data-active-step='2'] .line-contradiction {
  opacity: 0;
  stroke-dashoffset: 520;
}

.scenario-story[data-active-step='2'] .graph-conflict {
  opacity: 0;
  transform: translate3d(0, 18px, 0);
}

.scenario-story[data-active-step='3'] .line-contradiction,
.scenario-story[data-active-step='4'] .line-contradiction {
  stroke: rgba(138, 91, 84, 0.92);
  filter: drop-shadow(0 0 12px rgba(138, 91, 84, 0.32));
  animation: contradiction-pulse 1400ms var(--ease) 1;
}

.scenario-story[data-active-step='3'] .graph-conflict,
.scenario-story[data-active-step='4'] .graph-conflict {
  border-color: rgba(138, 91, 84, 0.84);
  background: rgba(24, 20, 18, 0.88);
}

.scenario-action-card {
  z-index: 5;
  top: 50%;
  left: 50%;
  right: auto;
  bottom: auto;
  width: min(500px, calc(100% - 68px));
  padding: 28px;
  border: 1px solid rgba(216, 220, 221, 0.5);
  background:
    radial-gradient(circle at 50% 0%, rgba(216, 220, 221, 0.18), transparent 16rem),
    linear-gradient(180deg, rgba(16, 33, 23, 0.94), rgba(6, 11, 18, 0.96) 58%, rgba(24, 20, 18, 0.9));
  box-shadow:
    0 0 0 1px rgba(95, 117, 99, 0.22) inset,
    0 0 72px rgba(216, 220, 221, 0.13),
    0 34px 120px rgba(0,0,0,.54);
  opacity: 0;
  transform: translate3d(-50%, -42%, 0) scale(.96);
  filter: blur(8px);
  transition: opacity 820ms var(--ease), transform 820ms var(--ease), filter 820ms var(--ease);
  text-align: center;
}

.scenario-action-card span {
  color: var(--white);
  text-shadow: 0 0 18px rgba(216, 220, 221, 0.22);
}
.scenario-action-card strong {
  display: block;
  margin-top: 12px;
  color: var(--white);
  font-family: var(--display);
  font-size: clamp(2.15rem, 3.8vw, 4rem);
  font-weight: 400;
  letter-spacing: -0.045em;
  line-height: 0.94;
}

.scenario-action-card ul {
  display: grid;
  gap: 8px;
  margin: 20px auto 0;
  padding: 18px 0 0;
  border-top: 1px solid rgba(216, 220, 221, 0.18);
  color: var(--paper);
  list-style: none;
  text-align: center;
}

.scenario-action-card li::before {
  content: '— ';
  color: var(--green-dim);
}

.scenario-story[data-active-step='4'] .scenario-action-card {
  opacity: 1;
  transform: translate3d(-50%, -50%, 0) scale(1);
  filter: blur(0);
}

.scenario-scroll-panels {
  display: grid;
  gap: 18vh;
  padding: 8vh 0 16vh;
}

.scenario-panel {
  min-height: 54vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 28px;
  border-left: 1px solid rgba(216, 220, 221, 0.16);
  opacity: 0.54;
  transition: opacity 460ms var(--ease), border-color 460ms var(--ease), background 460ms var(--ease);
}

.scenario-panel.is-active {
  border-color: rgba(216, 220, 221, 0.42);
  background: linear-gradient(90deg, rgba(216, 220, 221, 0.045), transparent 68%);
  opacity: 1;
}

.scenario-panel h3 {
  max-width: 11ch;
  margin-top: 8px;
  font-family: var(--display);
  font-size: clamp(2.6rem, 5.2vw, 5.8rem);
  font-weight: 400;
  letter-spacing: -0.055em;
  line-height: 0.92;
}

.scenario-panel p:not(.kicker) {
  max-width: 560px;
  margin-top: 20px;
  color: var(--paper);
  font-size: 1.08rem;
}

.artifact-field {
  position: relative;
  min-height: 560px;
  margin-top: 70px;
}

.artifact-card {
  position: absolute;
  width: min(390px, 76vw);
  padding: 24px;
  background: rgba(24, 20, 18, 0.72);
  backdrop-filter: blur(10px);
}

.artifact-card span { color: var(--mist); }
.artifact-card strong { display: block; margin-top: 18px; font-size: clamp(1.3rem, 2.3vw, 2.25rem); line-height: 1.02; }
.offset-a { top: 0; left: 3%; transform: translate3d(calc((var(--scene-progress, .5) - .5) * -46px), 0, 0) rotate(-3deg); }
.offset-b { top: 80px; right: 4%; transform: translate3d(calc((var(--scene-progress, .5) - .5) * 58px), 0, 0) rotate(2deg); }
.offset-c { bottom: 66px; left: 18%; transform: translate3d(0, calc((var(--scene-progress, .5) - .5) * -38px), 0) rotate(1deg); }
.offset-d { right: 17%; bottom: 0; transform: translate3d(calc((var(--scene-progress, .5) - .5) * 34px), 0, 0) rotate(-2deg); }
.disputed { border-color: rgba(138, 91, 84, .9); }
.faded { opacity: .72; }

.sticky-story {
  display: grid;
  grid-template-columns: 0.86fr 1fr;
  gap: 70px;
  align-items: start;
}

.sticky-stage {
  position: sticky;
  top: 120px;
  min-height: 72vh;
  display: grid;
  place-items: center;
  border: 1px solid var(--line);
  background: radial-gradient(circle, rgba(14,28,43,.92), rgba(3,5,6,.72) 58%, rgba(0,0,0,.18));
}

.memory-core {
  position: relative;
  display: grid;
  width: min(62vw, 430px);
  aspect-ratio: 1;
  place-items: center;
}

.memory-core strong {
  z-index: 2;
  max-width: 8ch;
  font-family: var(--display);
  font-size: clamp(3rem, 7vw, 5.8rem);
  font-weight: 400;
  line-height: .88;
  text-align: center;
}

.core-ring {
  position: absolute;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  inset: 10%;
  animation: breathe 8s var(--ease) infinite alternate;
}
.ring-two { inset: 22%; border-color: rgba(95,117,99,.58); animation-delay: -2s; }
.ring-three { inset: 34%; border-color: rgba(125,109,80,.58); animation-delay: -4s; }

.story-steps { display: grid; gap: 20vh; padding: 14vh 0; }
.story-step { min-height: 58vh; display: flex; flex-direction: column; justify-content: center; }
.story-step p:not(.kicker) { max-width: 560px; margin-top: 22px; color: var(--paper); font-size: 1.12rem; }

.mode-sequence,
.layers,
.why-grid {
  display: grid;
  gap: 16px;
  margin-top: 58px;
}

.mode-sequence {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.mode-panel {
  min-height: 390px;
  padding: 24px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: transform 500ms var(--ease), border-color 500ms var(--ease), background 500ms var(--ease);
}

.mode-panel:hover { transform: translateY(-10px); border-color: var(--line-strong); }
.mode-panel span, .layer-card span { color: var(--mist); }
.mode-panel p, .layer-card p, .why-grid span { color: var(--paper); }
.conflict { background: linear-gradient(180deg, rgba(138,91,84,.24), rgba(6,11,18,.68)); }
.drift { background: linear-gradient(180deg, rgba(125,109,80,.24), rgba(6,11,18,.68)); }
.action { background: linear-gradient(180deg, rgba(95,117,99,.25), rgba(6,11,18,.68)); }

.reasoning-console {
  display: grid;
  grid-template-columns: 0.7fr 1fr;
  gap: 24px;
  margin-top: 18px;
  border: 1px solid var(--line-strong);
  background:
    linear-gradient(135deg, rgba(216,220,221,.07), transparent 30%),
    rgba(3, 5, 6, 0.78);
  box-shadow: 0 34px 110px rgba(0,0,0,.34);
  overflow: hidden;
}

.console-track {
  display: grid;
  gap: 1px;
  border-right: 1px solid var(--line);
}

.console-track span {
  padding: 18px;
  background: rgba(216, 220, 221, 0.035);
  color: var(--mist);
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.console-track span:nth-child(3) {
  color: var(--white);
  background: rgba(138, 91, 84, 0.18);
}

.console-body {
  display: grid;
  align-content: center;
  gap: 14px;
  min-height: 220px;
  padding: 30px;
}

.console-body p {
  max-width: 34ch;
  color: var(--paper);
  font-size: clamp(1.1rem, 2vw, 1.65rem);
}

.console-body strong {
  max-width: 28ch;
  font-family: var(--display);
  font-size: clamp(2rem, 4.8vw, 4.6rem);
  font-weight: 400;
  letter-spacing: -0.055em;
  line-height: 0.92;
}

.layers { perspective: 1200px; }
.layer-card {
  min-height: 220px;
  padding: 28px;
  transform-origin: center top;
}
.layer-card:nth-child(1) { transform: translateY(0) rotateX(0deg); }
.layer-card:nth-child(2) { transform: translateY(-26px) scale(.96); background: rgba(14,28,43,.62); }
.layer-card:nth-child(3) { transform: translateY(-52px) scale(.92); background: rgba(16,33,23,.46); }
.layer-card h3 { margin: 14px 0; font-size: clamp(2rem, 4vw, 4.4rem); font-family: var(--display); font-weight: 400; letter-spacing: -.05em; }

.why-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}
.why-grid article { min-height: 190px; padding: 24px; }
.why-grid strong { display: block; margin-bottom: 16px; font-size: 1.35rem; }
.why-grid span { display: block; }

.manifesto {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.manifesto h2 { max-width: 10ch; }
.manifesto-lines {
  display: grid;
  gap: 10px;
  margin-top: 44px;
  color: var(--paper);
  font-family: var(--mono);
  font-size: clamp(1rem, 1.5vw, 1.24rem);
  letter-spacing: .05em;
  text-transform: uppercase;
}

.final-cta {
  min-height: 70vh;
  display: grid;
  place-items: center;
  text-align: center;
}
.final-cta h2, .final-cta p { margin-inline: auto; }
.final-cta .cta-row { justify-content: center; }

[data-reveal] {
  opacity: 0;
  transform: translate3d(0, 42px, 0) scale(.985);
  filter: blur(10px);
  transition: opacity 900ms var(--ease), transform 900ms var(--ease), filter 900ms var(--ease);
}

.site-header[data-reveal],
.scene-hero [data-reveal] {
  opacity: 1;
  transform: translate3d(0, 0, 0) scale(1);
  filter: blur(0);
}

.scene-left [data-reveal] { transform: translate3d(-54px, 20px, 0) scale(.985); }
.scene-rise [data-reveal] { transform: translate3d(0, 64px, 0) scale(.97); }
.scene-stack [data-reveal] { transform: translate3d(0, 26px, 0) rotateX(6deg) scale(.98); }
.manifesto [data-reveal] { transform: translate3d(0, 0, 0) scale(.94); }
[data-reveal].is-visible {
  opacity: 1;
  transform: translate3d(0, 0, 0) scale(1);
  filter: blur(0);
}

.layers .layer-card[data-reveal],
.layers .layer-card[data-reveal].is-visible {
  filter: blur(0);
}

.layers .layer-card:nth-child(1)[data-reveal],
.layers .layer-card:nth-child(1)[data-reveal].is-visible {
  transform: translateY(0) rotateX(0deg);
}

.layers .layer-card:nth-child(2)[data-reveal],
.layers .layer-card:nth-child(2)[data-reveal].is-visible {
  transform: translateY(-26px) scale(.96);
}

.layers .layer-card:nth-child(3)[data-reveal],
.layers .layer-card:nth-child(3)[data-reveal].is-visible {
  transform: translateY(-52px) scale(.92);
}

.layers .layer-card[data-reveal].is-visible {
  opacity: 1;
}

@keyframes trace { to { stroke-dashoffset: -120; } }
@keyframes tape { from { transform: translateX(0); } to { transform: translateX(-120%); } }
@keyframes breathe { from { transform: scale(.95); opacity: .38; } to { transform: scale(1.08); opacity: .88; } }
@keyframes drift-line { from { transform: scaleX(.48); opacity: .44; } to { transform: scaleX(1); opacity: .9; } }
@keyframes contradiction-pulse {
  0% { stroke-width: 1.35; opacity: 0.62; }
  42% { stroke-width: 3.2; opacity: 1; }
  100% { stroke-width: 1.8; opacity: 0.92; }
}

@media (max-width: 980px) {
  .top-nav { display: none; }
  .site-header { grid-template-columns: auto auto; justify-content: center; }
  .hero, .sticky-story, .split-heading, .scenario-layout { grid-template-columns: 1fr; }
  .scene, .scene-left, .scene-rise, .scene-debris, .scene-stack { transform: none; }
  .hero-stage { min-height: 540px; }
  .not-this-grid, .mode-sequence { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .reasoning-console { grid-template-columns: 1fr; }
  .console-track { border-right: 0; border-bottom: 1px solid var(--line); }
  .sticky-stage, .scenario-stage { position: relative; top: auto; min-height: 560px; }
  .story-steps { gap: 80px; padding: 70px 0 0; }
  .story-step { min-height: auto; }
  .scenario-scroll-panels {
    counter-reset: scenario-step;
    gap: 22px;
    padding: 22px 0 0;
  }
  .scenario-panel {
    counter-increment: scenario-step;
    min-height: auto;
    position: relative;
    padding-left: 46px;
  }
  .scenario-panel::before {
    content: counter(scenario-step, decimal-leading-zero);
    position: absolute;
    top: 28px;
    left: -14px;
    display: grid;
    place-items: center;
    width: 28px;
    height: 28px;
    border: 1px solid rgba(216, 220, 221, 0.22);
    border-radius: 50%;
    background: rgba(3, 5, 6, 0.92);
    color: var(--mist);
    font-family: var(--mono);
    font-size: 0.56rem;
    font-weight: 700;
  }
  .scenario-panel.is-active::before {
    border-color: rgba(95, 117, 99, 0.78);
    color: var(--white);
    box-shadow: 0 0 28px rgba(95, 117, 99, 0.22);
  }
}

@media (max-width: 640px) {
  .site-header { top: 10px; width: calc(100% - 20px); }
  .nav-cta { display: none; }
  .scene { width: min(calc(100% - 24px), var(--max)); padding: 90px 0; }
  .hero { padding-top: 120px; gap: 30px; }
  h1 { font-size: clamp(3.7rem, 18vw, 6rem); }
  h2 { font-size: clamp(3rem, 16vw, 5rem); }
  .not-this-grid, .mode-sequence, .why-grid { grid-template-columns: 1fr; }
  .hero-stage { min-height: 610px; }
  .assumption-drift { display: none; }
  .memory-node { width: 72%; }
  .node-decision { left: 0; }
  .node-assumption { right: 0; top: 132px; }
  .node-conflict { left: 6px; top: 284px; }
  .node-action { right: 0; bottom: 10px; }
  .artifact-field { min-height: 790px; }
  .artifact-card { position: relative; inset: auto; margin: 0 0 18px; transform: none; width: 100%; }
  .layer-card:nth-child(n) { transform: none; }
  .scenario-stage { min-height: 720px; }
  .scenario-doc { width: 68%; padding: 12px; }
  .doc-roadmap { top: 76px; left: 5%; }
  .doc-planning { top: 148px; right: 5%; }
  .doc-review { bottom: 252px; left: 5%; }
  .doc-paste { right: 5%; bottom: 182px; }
  .extract-tag { min-height: 30px; padding: 7px 8px; font-size: 0.54rem; }
  .tag-decision { top: 96px; left: 48%; }
  .tag-assumption { top: 186px; right: 8%; }
  .tag-constraint { bottom: 302px; left: 12%; }
  .tag-commitment { right: 10%; bottom: 205px; }
  .tag-outcome { top: 48%; left: 18%; }
  .scenario-graph svg { inset: 66px 10px 150px; width: calc(100% - 20px); height: calc(100% - 216px); }
  .graph-node { width: 48%; padding: 10px; }
  .graph-decision { top: 42%; left: 28%; }
  .graph-assumption { top: 86px; left: 4%; }
  .graph-constraint { bottom: 266px; left: 4%; }
  .graph-conflict { top: 96px; right: 4%; }
  .graph-dependency { right: 4%; bottom: 206px; }
  .scenario-action-card {
    top: 50%;
    left: 50%;
    right: auto;
    bottom: auto;
    width: calc(100% - 28px);
    padding: 18px;
  }
  .scenario-panel { padding: 22px 18px 22px 46px; }
  .scenario-panel h3 { font-size: clamp(2.4rem, 13vw, 4.6rem); }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; }
  [data-reveal] { opacity: 1; transform: none; filter: none; }
  #memory-field { opacity: .28; }
}