:root {
  --night: #0e1b22;
  --night-2: #152a33;
  --night-3: #203b44;
  --paper: #f3f0e8;
  --paper-2: #e7e2d7;
  --paper-white: #fcfbf6;
  --ink: #13232a;
  --muted: #5e6b6d;
  --muted-light: #b8c8c7;
  --line: rgba(19, 35, 42, 0.18);
  --line-dark: rgba(252, 251, 246, 0.18);
  --orange: #eb6b43;
  --orange-soft: #f5d5c6;
  --teal: #147b72;
  --teal-soft: #d7ebe6;
  --blue: #9bcbd4;
  --blue-soft: #dcebef;
  --red: #b84742;
  --red-soft: #efd5d0;
  --violet: #735b9e;
  --violet-soft: #e5ddf0;
  --green: #5b8967;
  --green-soft: #d9e8d9;
  --display: "Baskerville", "Iowan Old Style", "Palatino Linotype", Georgia, serif;
  --body: "Avenir Next", "Helvetica Neue", Arial, sans-serif;
  --utility: "SFMono-Regular", Menlo, Consolas, monospace;
  --shell: min(1180px, calc(100vw - 48px));
  --section-space: clamp(5rem, 10vw, 9.5rem);
  color-scheme: light;
}

* { box-sizing: border-box; }

html {
  background: var(--paper);
  scroll-behavior: smooth;
}

body {
  min-width: 320px;
  margin: 0;
  overflow-x: hidden;
  color: var(--ink);
  background: var(--paper);
  font-family: var(--body);
  font-size: 1.03rem;
  line-height: 1.65;
  text-rendering: optimizeLegibility;
}

body.has-js .back-top { display: none; }
body.has-js .back-top.is-visible { display: inline-flex; }
body.has-js .back-top.is-fixed {
  position: fixed;
  right: max(1rem, env(safe-area-inset-right));
  bottom: max(1rem, env(safe-area-inset-bottom));
  z-index: 30;
}

a {
  color: inherit;
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.18em;
}

button { font: inherit; cursor: pointer; }

button:focus-visible,
a:focus-visible,
[tabindex="-1"]:focus-visible {
  outline: 3px solid var(--orange);
  outline-offset: 4px;
}

::selection { color: var(--paper-white); background: var(--red); }

.shell { width: var(--shell); margin-inline: auto; }

.skip-link {
  position: fixed;
  z-index: 60;
  top: 0.75rem;
  left: 0.75rem;
  padding: 0.65rem 0.85rem;
  color: var(--paper-white);
  background: var(--night);
  transform: translateY(-170%);
}

.skip-link:focus { transform: translateY(0); }

.eyebrow,
.micro-label,
.hero-note,
.hero-stat span,
.visual-topline,
.visual-meta,
.visual-stamp,
.visual-readout,
.case-label,
.case-source,
.case-trace__index,
.trace-control__number,
.trace-control__label small,
.trace-detail__count,
.trace-detail__prompt,
.source-card a,
.updated-line,
.footer-grid,
.scroll-cue,
.section-aside,
.boundary-note,
.action-note,
.ending-note {
  font-family: var(--utility);
  font-size: 0.65rem;
  line-height: 1.5;
  letter-spacing: 0.035em;
}

.eyebrow { margin: 0 0 1.2rem; color: var(--muted); text-transform: uppercase; }
.eyebrow--light { color: var(--blue); }
.eyebrow--dark { color: #6b321f; }

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

h1,
h2,
h3 { font-family: var(--display); font-weight: 600; letter-spacing: -0.045em; }

h1 {
  max-width: 8.5ch;
  margin-bottom: 1.8rem;
  font-size: clamp(4rem, 9vw, 8.75rem);
  line-height: 0.87;
}

h2 {
  max-width: 11ch;
  margin-bottom: 1.45rem;
  font-size: clamp(2.8rem, 6.5vw, 6.3rem);
  line-height: 0.91;
}

h3 {
  margin-bottom: 0.65rem;
  font-size: clamp(1.45rem, 2.2vw, 2.2rem);
  line-height: 1.03;
}

.hero {
  position: relative;
  min-height: min(920px, 100svh);
  overflow: hidden;
  color: var(--paper-white);
  background: var(--night);
}

.hero::before {
  position: absolute;
  inset: 0;
  pointer-events: none;
  content: "";
  opacity: 0.55;
  background-image: linear-gradient(rgba(155, 203, 212, 0.06) 1px, transparent 1px), linear-gradient(90deg, rgba(155, 203, 212, 0.06) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: linear-gradient(to bottom, black 0%, transparent 82%);
}

.hero::after {
  position: absolute;
  right: -14vw;
  bottom: -22vw;
  width: 58vw;
  height: 58vw;
  pointer-events: none;
  content: "";
  border: 1px solid rgba(155, 203, 212, 0.17);
  border-radius: 50%;
  box-shadow: 0 0 0 36px rgba(155, 203, 212, 0.035), 0 0 0 72px rgba(155, 203, 212, 0.025);
}

.topbar {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 5rem;
  border-bottom: 1px solid var(--line-dark);
}

.wordmark,
.language-switch,
.hero-nav a {
  font-family: var(--utility);
  font-size: 0.66rem;
  letter-spacing: 0.06em;
  text-decoration: none;
  text-transform: uppercase;
}

.wordmark { color: var(--blue); }
.topbar__right { display: flex; align-items: center; gap: clamp(1rem, 4vw, 3.5rem); }
.language-switch { color: var(--orange); }
.hero-nav { display: flex; gap: clamp(0.7rem, 2vw, 1.8rem); }
.hero-nav a { color: var(--muted-light); }
.hero-nav a:hover,
.language-switch:hover,
.wordmark:hover { color: var(--paper-white); }

.hero-layout {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(300px, 0.78fr);
  gap: clamp(3rem, 8vw, 9rem);
  align-items: center;
  min-height: 650px;
  padding-block: clamp(4.5rem, 9vw, 8.5rem) 3.5rem;
}

.hero-deck {
  max-width: 40rem;
  margin-bottom: 2.2rem;
  color: #d5dfdb;
  font-size: clamp(1.12rem, 1.5vw, 1.38rem);
  line-height: 1.55;
}

.hero-note {
  display: flex;
  gap: 0.7rem;
  align-items: center;
  max-width: 33rem;
  margin-bottom: 0;
  color: var(--orange);
  text-transform: uppercase;
}

.note-dot {
  display: inline-block;
  width: 0.65rem;
  height: 0.65rem;
  flex: 0 0 auto;
  background: var(--orange);
  border-radius: 50%;
  box-shadow: 0 0 0 5px rgba(235, 107, 67, 0.14);
}

.hero-visual {
  position: relative;
  min-height: 470px;
  padding: 1.3rem;
}

.visual-paper {
  position: absolute;
  inset: 1.2rem 1.2rem 3rem 1.2rem;
  border: 1px solid rgba(19, 35, 42, 0.15);
  background: var(--paper-2);
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.18);
}

.visual-paper--back { transform: rotate(6deg) translate(1.7rem, 0.7rem); background: #c6d6d2; }
.visual-paper--mid { transform: rotate(-3.5deg) translate(-0.75rem, 1rem); background: #ead8c7; }

.visual-paper--front {
  z-index: 2;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 1.55rem;
  color: var(--ink);
  background: var(--paper-white);
  transform: rotate(1.2deg);
}

.visual-topline,
.visual-meta {
  display: flex;
  justify-content: space-between;
  color: var(--muted);
  font-size: 0.58rem;
  text-transform: uppercase;
}

.visual-kicker {
  max-width: 10ch;
  margin: 2.1rem 0 1rem;
  font-family: var(--display);
  font-size: clamp(2.1rem, 4vw, 3.7rem);
  line-height: 0.9;
  letter-spacing: -0.05em;
}

.visual-route {
  display: flex;
  align-items: flex-start;
  margin: 0.9rem 0 1.7rem;
}

.visual-route__node {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  width: 3.3rem;
  color: var(--ink);
}

.visual-route__node i {
  display: grid;
  place-items: center;
  width: 2rem;
  height: 2rem;
  font-family: var(--utility);
  font-size: 0.59rem;
  font-style: normal;
  color: var(--paper-white);
  background: var(--teal);
  border-radius: 50%;
}

.visual-route__node--2 i { background: var(--orange); }
.visual-route__node--3 i { background: var(--red); }
.visual-route__node--4 i { background: var(--night); }
.visual-route__node b { font-size: 0.68rem; line-height: 1.15; }
.visual-route__line { height: 1px; flex: 1; margin: 1rem 0.35rem 0; background: var(--line); }

.visual-readout {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.15rem 0.7rem;
  align-items: center;
  padding: 0.95rem 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  color: var(--red);
  text-transform: uppercase;
}

.visual-readout__mark { grid-row: span 2; font-family: var(--display); font-size: 2.2rem; line-height: 1; }
.visual-readout strong { font-size: 0.82rem; color: var(--ink); }
.visual-meta { margin-top: 1.1rem; font-size: 0.54rem; }
.visual-stamp { position: absolute; right: 1.4rem; bottom: 4.4rem; padding: 0.35rem 0.5rem; color: var(--red); border: 2px solid var(--red); transform: rotate(-8deg); }
.visual-caption { position: absolute; right: 0; bottom: 0; max-width: 22rem; margin: 0; color: var(--muted-light); font-size: 0.72rem; }

.hero-stats {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line-dark);
  border-bottom: 1px solid var(--line-dark);
}

.hero-stat { display: grid; grid-template-columns: auto 1fr; gap: 0.8rem; min-height: 6rem; align-items: center; padding: 1rem 1.2rem 1rem 0; }
.hero-stat + .hero-stat { padding-left: 1.2rem; border-left: 1px solid var(--line-dark); }
.hero-stat strong { font-family: var(--display); font-size: 3.1rem; font-weight: 500; line-height: 0.8; }
.hero-stat span { color: var(--muted-light); text-transform: uppercase; }
.hero-stat--orange strong { color: var(--orange); }
.hero-stat--teal strong { color: var(--blue); }
.hero-stat--unknown strong { color: #d5b378; }

.scroll-cue { display: inline-flex; gap: 0.8rem; align-items: center; margin-top: 2.3rem; color: var(--muted-light); text-decoration: none; text-transform: uppercase; }
.scroll-cue:hover { color: var(--paper-white); }
.scroll-cue__line { width: 3rem; height: 1px; background: var(--orange); }

.section { padding-block: var(--section-space); }
.section--paper { background: var(--paper); }
.section--ink { color: var(--paper-white); background: var(--night-2); }
.section--blueprint { background-color: #dcebef; background-image: linear-gradient(rgba(20, 123, 114, 0.07) 1px, transparent 1px), linear-gradient(90deg, rgba(20, 123, 114, 0.07) 1px, transparent 1px); background-size: 44px 44px; }
.section--split { background: var(--paper-2); }
.section--orange { color: var(--ink); background: var(--orange); }
.section--night { color: var(--paper-white); background: var(--night); }
.section--sources { padding-bottom: 5rem; }

.section-grid { display: grid; grid-template-columns: minmax(250px, 0.85fr) minmax(0, 1.15fr); gap: clamp(3rem, 10vw, 10rem); }
.section-grid--intro { align-items: start; }
.section-heading--wide { max-width: 850px; }
.section-lead { max-width: 49rem; font-size: clamp(1.05rem, 1.6vw, 1.28rem); color: var(--muted); }
.section-lead--light { color: #c1d1ce; }
.section-lead--dark { color: #5d3023; }
.lead { max-width: 45rem; font-size: clamp(1.3rem, 2vw, 1.72rem); line-height: 1.5; }
.section-rule { width: 100%; height: 1px; margin: 2rem 0 1.2rem; background: var(--line); }
.section-aside { max-width: 31rem; margin-bottom: 0; color: var(--muted); text-transform: uppercase; }

.facts-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; margin-top: clamp(4rem, 7vw, 6rem); background: var(--line); }
.fact-card { min-height: 12rem; padding: 1.4rem; background: var(--paper); }
.fact-card--fact { border-top: 4px solid var(--teal); }
.fact-card--interpretation { border-top: 4px solid var(--orange); }
.fact-card--unknown { border-top: 4px solid var(--red); }
.fact-card p { margin: 1.5rem 0 0; font-size: 1.02rem; }

.micro-label { display: block; color: var(--muted); text-transform: uppercase; }
.section--ink .micro-label { color: var(--blue); }

.case-switcher { margin-top: 3.5rem; }
.case-tabs { display: flex; gap: 0.75rem; margin-bottom: 1px; }
.case-tab { display: flex; flex: 0 0 auto; flex-direction: column; gap: 0.35rem; min-width: 11rem; padding: 1rem 1.25rem; color: var(--muted-light); text-align: left; background: transparent; border: 1px solid var(--line-dark); border-bottom: 0; }
.case-tab span { font-family: var(--display); font-size: 1.45rem; line-height: 1; }
.case-tab small { font-family: var(--utility); font-size: 0.58rem; letter-spacing: 0.05em; }
.case-tab:hover,
.case-tab.is-active { color: var(--paper-white); background: var(--night-3); }
.case-tab.is-active { border-color: var(--orange); }
.case-panels { border: 1px solid var(--line-dark); }
html.js .case-panel[aria-hidden="true"] { display: none; }
.case-panel { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(280px, 0.95fr); gap: clamp(2.5rem, 6vw, 7rem); padding: clamp(2rem, 5vw, 4.8rem); background: var(--night-3); }
.case-panel__copy p:not(.case-label):not(.case-source) { max-width: 42rem; color: #d4dfdc; font-size: 1.08rem; }
.case-label { margin-bottom: 1.25rem; color: var(--orange); text-transform: uppercase; }
.case-panel h3 { max-width: 14ch; font-size: clamp(2rem, 4vw, 4.25rem); }
.case-source { display: flex; gap: 0.5rem; align-items: center; margin: 2rem 0 0; color: var(--blue); text-transform: uppercase; }
.case-source span { color: var(--orange); font-size: 0.7rem; }
.case-panel__trace { align-self: center; padding-top: 0.25rem; }
.case-trace { display: grid; gap: 0; margin: 1rem 0 0; padding: 0; list-style: none; }
.case-trace__item { display: grid; grid-template-columns: 2.2rem 1fr; gap: 0.9rem; position: relative; min-height: 4.65rem; padding-bottom: 1.1rem; }
.case-trace__item::before { position: absolute; top: 1.9rem; bottom: 0; left: 0.6rem; width: 1px; content: ""; background: var(--line-dark); }
.case-trace__item:last-child::before { display: none; }
.case-trace__index { display: grid; place-items: center; z-index: 1; width: 1.25rem; height: 1.25rem; color: var(--paper-white); background: var(--teal); border-radius: 50%; }
.case-trace__item--orange .case-trace__index { background: var(--orange); }
.case-trace__item--red .case-trace__index { background: var(--red); }
.case-trace__item--blue .case-trace__index { background: var(--blue); color: var(--ink); }
.case-trace__item b { display: block; margin-bottom: 0.2rem; color: var(--paper-white); font-family: var(--body); font-size: 0.9rem; }
.case-trace__item span:last-child { color: var(--muted-light); font-size: 0.86rem; line-height: 1.35; }

.trace-legend { display: grid; grid-template-columns: minmax(170px, 0.35fr) 1fr; gap: 1.5rem; align-items: start; margin: 3.5rem 0 2rem; padding: 1rem 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.trace-legend span { display: flex; gap: 0.55rem; align-items: center; font-family: var(--utility); font-size: 0.63rem; letter-spacing: 0.04em; }
.trace-legend strong { max-width: 46rem; font-weight: 500; }
.legend-dot { display: inline-block; width: 0.7rem; height: 0.7rem; border-radius: 50%; }
.legend-dot--orange { background: var(--orange); }
.trace-layout { display: grid; grid-template-columns: minmax(210px, 0.35fr) minmax(0, 1fr); gap: 1rem; min-height: 28rem; }
.trace-controls { display: grid; align-content: start; gap: 0.45rem; }
.trace-control { display: grid; grid-template-columns: 2.7rem 1fr; gap: 0.8rem; align-items: center; min-height: 4.2rem; padding: 0.7rem 0.85rem; color: var(--ink); text-align: left; background: rgba(252, 251, 246, 0.55); border: 1px solid rgba(19, 35, 42, 0.16); border-left: 4px solid var(--teal); }
.trace-control--orange { border-left-color: var(--orange); }
.trace-control--violet { border-left-color: var(--violet); }
.trace-control--red { border-left-color: var(--red); }
.trace-control--blue { border-left-color: #438d9a; }
.trace-control--green { border-left-color: var(--green); }
.trace-control:hover,
.trace-control.is-active { color: var(--paper-white); background: var(--night-2); border-color: var(--night-2); }
.trace-control__number { color: var(--muted); }
.trace-control.is-active .trace-control__number { color: var(--orange); }
.trace-control__label b { display: block; font-family: var(--display); font-size: 1.3rem; font-weight: 600; line-height: 1; }
.trace-control__label small { display: block; margin-top: 0.3rem; color: var(--muted); }
.trace-control.is-active .trace-control__label small { color: var(--muted-light); }
.trace-panels { min-width: 0; }
html.js .trace-detail[aria-hidden="true"] { display: none; }
.trace-detail { min-height: 100%; padding: clamp(2rem, 5vw, 4.6rem); background: var(--paper-white); border: 1px solid rgba(19, 35, 42, 0.16); box-shadow: 12px 12px 0 rgba(19, 35, 42, 0.1); }
.trace-detail__top { display: flex; justify-content: space-between; gap: 1rem; padding-bottom: 1.4rem; border-bottom: 1px solid var(--line); }
.trace-detail__count { color: var(--muted); }
.trace-detail h3 { max-width: 12ch; margin: 2.5rem 0 1.2rem; font-size: clamp(2.6rem, 5.4vw, 5.6rem); }
.trace-detail p:not(.trace-detail__prompt) { max-width: 39rem; font-size: clamp(1.1rem, 1.7vw, 1.38rem); }
.trace-detail__line { position: relative; width: min(100%, 26rem); height: 3px; margin: 2.6rem 0 1.1rem; background: var(--line); }
.trace-detail__line span { display: block; width: 25%; height: 100%; background: var(--teal); }
.trace-detail--orange .trace-detail__line span { width: 40%; background: var(--orange); }
.trace-detail--violet .trace-detail__line span { width: 55%; background: var(--violet); }
.trace-detail--red .trace-detail__line span { width: 67%; background: var(--red); }
.trace-detail--blue .trace-detail__line span { width: 82%; background: #438d9a; }
.trace-detail--green .trace-detail__line span { width: 100%; background: var(--green); }
.trace-detail__prompt { margin-bottom: 0; color: var(--muted); text-transform: uppercase; }
.trace-detail__prompt strong { color: var(--ink); }
.attribution-note { display: grid; grid-template-columns: minmax(170px, 0.35fr) 1fr; gap: 1.5rem; margin-top: 3rem; padding: 1.3rem 0 0; border-top: 1px solid var(--line); }
.attribution-note p { max-width: 51rem; margin: 0; color: #425658; font-size: 0.95rem; }

.section--evidence .section-lead { max-width: 46rem; }
.evidence-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; margin-top: 3.5rem; background: var(--line); }
.evidence-card { min-height: 18rem; padding: 1.5rem; background: var(--paper); border-top: 4px solid var(--teal); }
.evidence-card--orange { border-top-color: var(--orange); }
.evidence-card--unknown { border-top-color: var(--red); }
.evidence-card h3 { max-width: 12ch; margin-top: 3.4rem; font-size: clamp(1.8rem, 3vw, 3rem); }
.evidence-card p { max-width: 28rem; margin-bottom: 0; color: #425658; }
.pull-quote { display: grid; grid-template-columns: minmax(170px, 0.35fr) 1fr; gap: 1.5rem; align-items: start; margin-top: 3.2rem; padding: 1.2rem 0; border-block: 1px solid var(--line); }
.pull-quote p { max-width: 48rem; margin-bottom: 0; font-family: var(--display); font-size: clamp(1.7rem, 3vw, 3rem); line-height: 1.03; }

.boundary-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px; margin-top: 3.5rem; background: var(--line); }
.boundary-card { min-height: 17rem; padding: clamp(1.5rem, 3vw, 2.7rem); background: var(--paper-2); border-top: 4px solid var(--orange); }
.boundary-card--teal { border-top-color: var(--teal); background: var(--teal-soft); }
.boundary-card h3 { max-width: 13ch; margin-top: 2.7rem; font-size: clamp(2rem, 4vw, 4rem); }
.boundary-card p { max-width: 35rem; margin-bottom: 0; }
.boundary-note { display: grid; grid-template-columns: minmax(170px, 0.35fr) 1fr; gap: 1.5rem; margin-top: 2rem; padding: 1rem 0; border-top: 1px solid var(--line); }
.boundary-note p { max-width: 46rem; margin: 0; }

.action-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; margin-top: 3.5rem; background: rgba(19, 35, 42, 0.24); }
.action-card { display: grid; grid-template-columns: 3rem 1fr; gap: 1rem; min-height: 19rem; padding: 1.5rem; background: #f1a181; border-top: 4px solid var(--night); }
.action-card--orange { background: #e98762; }
.action-card--red { background: #d96f62; }
.action-number { font-family: var(--display); font-size: 2.6rem; line-height: 0.85; }
.action-card .micro-label { color: #6b321f; }
.action-card p { margin-top: 2.7rem; }
.action-card strong { display: block; margin-top: 1.2rem; font-family: var(--display); font-size: 1.35rem; line-height: 1.05; }
.action-note { display: grid; grid-template-columns: minmax(170px, 0.35fr) 1fr; gap: 1.5rem; margin-top: 2rem; padding: 1rem 0; border-top: 1px solid rgba(19, 35, 42, 0.32); }
.action-note p { max-width: 47rem; margin: 0; }

.ending-grid { display: grid; grid-template-columns: minmax(260px, 0.9fr) minmax(0, 1.1fr); gap: clamp(3rem, 10vw, 10rem); align-items: start; }
.ending-lead { max-width: 42rem; font-family: var(--display); font-size: clamp(1.8rem, 3.8vw, 4rem); line-height: 1.04; }
.ending-steps { margin: 3rem 0 0; padding: 0; list-style: none; border-top: 1px solid var(--line-dark); }
.ending-steps li { display: grid; grid-template-columns: 3rem 1fr; gap: 1rem; padding: 1.25rem 0; border-bottom: 1px solid var(--line-dark); }
.ending-steps span { color: var(--orange); font-family: var(--utility); font-size: 0.7rem; }
.ending-steps p { max-width: 33rem; margin: 0; color: #d6e2df; }
.ending-note { margin-top: 1.4rem; color: var(--muted-light); text-transform: uppercase; }

.source-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px; margin-top: 3.5rem; background: var(--line); }
.source-card { min-height: 15rem; padding: 1.5rem; background: var(--paper); }
.source-card h3 { max-width: 16ch; margin-top: 2.7rem; font-size: clamp(1.5rem, 2.5vw, 2.5rem); }
.source-card p { max-width: 34rem; color: #425658; }
.source-card a { display: inline-block; margin-top: 1rem; color: var(--teal); text-transform: uppercase; }
.source-card a:hover { color: var(--red); }
.sources-lower { display: grid; grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr); gap: clamp(3rem, 8vw, 8rem); margin-top: 4rem; padding-top: 1.2rem; border-top: 1px solid var(--line); }
.limits-list { display: grid; gap: 0.7rem; margin: 1.4rem 0 0; padding: 0; list-style: none; }
.limits-list li { position: relative; max-width: 35rem; padding-left: 1.25rem; }
.limits-list li::before { position: absolute; top: 0.73em; left: 0; width: 0.45rem; height: 0.45rem; content: ""; background: var(--red); border-radius: 50%; }
.method-copy { max-width: 42rem; margin-top: 1.4rem; color: #425658; }
.updated-line { max-width: 45rem; margin: 2rem 0 0; color: var(--muted); }
.source-note { margin: 3rem 0 0; color: var(--muted); font-family: var(--utility); font-size: 0.63rem; text-transform: uppercase; }

.site-footer { color: var(--muted-light); background: var(--night); }
.footer-grid { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 1rem 3rem; padding-block: 2rem; }
.footer-credit { display: inline-block; color: var(--paper-white); font-family: var(--body); font-size: 0.92rem; letter-spacing: 0; text-transform: none; }
.footer-grid p { margin: 0.65rem 0 0; }
.footer-links { display: flex; flex-wrap: wrap; gap: 1rem 1.4rem; align-items: start; justify-content: flex-end; text-align: right; }
.footer-links a { color: var(--blue); text-transform: uppercase; }
.footer-links a:hover { color: var(--orange); }
.footer-privacy { grid-column: 1 / -1; color: var(--muted-light); }
.back-top { align-items: center; gap: 0.35rem; }

@media (max-width: 900px) {
  :root { --shell: min(100% - 36px, 720px); }
  .hero-layout,
  .section-grid,
  .ending-grid { grid-template-columns: 1fr; gap: 3rem; }
  .hero-layout { min-height: auto; padding-block: 5rem 3.5rem; }
  .hero-copy { max-width: 45rem; }
  .hero-visual { max-width: 40rem; min-height: 410px; margin-inline: auto; }
  .case-panel { grid-template-columns: 1fr; gap: 3rem; }
  .trace-layout { grid-template-columns: 1fr; }
  .trace-controls { grid-template-columns: repeat(3, 1fr); }
  .trace-control { min-height: 5.2rem; }
  .trace-legend,
  .attribution-note,
  .pull-quote,
  .boundary-note,
  .action-note { grid-template-columns: 1fr; gap: 0.6rem; }
  .action-card { min-height: 16rem; }
}

@media (max-width: 650px) {
  :root { --shell: min(100% - 28px, 520px); --section-space: 5rem; }
  body { font-size: 0.98rem; }
  .topbar { align-items: flex-start; padding-block: 1.1rem; }
  .topbar__right { align-items: flex-end; flex-direction: column-reverse; gap: 0.7rem; }
  .hero-nav { display: none; }
  h1 { max-width: 7.5ch; font-size: clamp(3.8rem, 18vw, 6rem); }
  h2 { max-width: 10ch; font-size: clamp(2.75rem, 14vw, 4.8rem); }
  .hero-layout { padding-top: 4.5rem; }
  .hero-visual { min-height: 365px; padding: 0.8rem; }
  .visual-paper { inset: 0.8rem 0.8rem 2.3rem; }
  .visual-paper--back { transform: rotate(5deg) translate(0.65rem, 0.4rem); }
  .visual-paper--mid { transform: rotate(-3deg) translate(-0.3rem, 0.45rem); }
  .visual-paper--front { padding: 1rem; }
  .visual-kicker { margin-top: 1.3rem; font-size: 2.35rem; }
  .visual-route__node { width: 2.25rem; }
  .visual-route__node i { width: 1.55rem; height: 1.55rem; font-size: 0.48rem; }
  .visual-route__node b { font-size: 0.54rem; }
  .visual-stamp { right: 0.9rem; bottom: 3.3rem; font-size: 0.52rem; }
  .visual-caption { right: 0; font-size: 0.62rem; }
  .hero-stats { grid-template-columns: 1fr; }
  .hero-stat,
  .hero-stat + .hero-stat { min-height: 4.5rem; padding: 0.8rem 0; border-left: 0; }
  .hero-stat + .hero-stat { border-top: 1px solid var(--line-dark); }
  .hero-stat strong { font-size: 2.4rem; }
  .facts-grid,
  .evidence-grid,
  .boundary-grid,
  .action-grid,
  .source-grid,
  .sources-lower { grid-template-columns: 1fr; }
  .fact-card,
  .evidence-card,
  .boundary-card,
  .action-card,
  .source-card { min-height: auto; }
  .case-tabs { overflow-x: auto; margin-right: -0.5rem; padding-right: 0.5rem; }
  .case-tab { min-width: 9.5rem; }
  .case-panel { padding: 1.5rem; }
  .case-panel h3 { max-width: 12ch; }
  .trace-controls { display: flex; gap: 0.45rem; overflow-x: auto; margin-inline: -0.4rem; padding: 0.4rem; }
  .trace-control { min-width: 8.6rem; grid-template-columns: 1.8rem 1fr; padding: 0.65rem; }
  .trace-control__label b { font-size: 1.05rem; }
  .trace-detail { min-height: 25rem; padding: 1.5rem; box-shadow: 7px 7px 0 rgba(19, 35, 42, 0.1); }
  .trace-detail h3 { font-size: 3rem; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-links { justify-content: flex-start; text-align: left; }
  .footer-privacy { grid-column: auto; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: 0.01ms !important; animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; }
}

@media print {
  .hero { min-height: auto; color: var(--ink); background: var(--paper); }
  .hero::before,
  .hero::after,
  .scroll-cue,
  .hero-nav,
  .language-switch,
  .case-tabs,
  .trace-controls,
  .back-top { display: none !important; }
  .hero-layout { min-height: auto; padding-block: 2rem; }
  .hero-deck,
  .hero-note { color: var(--ink); }
  .hero-stats { border-color: var(--line); }
  .hero-stat + .hero-stat { border-color: var(--line); }
  .section--ink,
  .section--night { color: var(--ink); background: var(--paper); }
  .case-panels,
  .trace-detail { border-color: var(--line); box-shadow: none; }
  .case-panel { display: grid !important; color: var(--ink); background: var(--paper); page-break-inside: avoid; }
  .case-panel__copy p:not(.case-label):not(.case-source),
  .case-trace__item b,
  .case-trace__item span:last-child,
  .ending-steps p { color: var(--ink); }
  .trace-detail { page-break-inside: avoid; }
  .trace-detail[aria-hidden="true"] { display: block !important; margin-top: 1rem; }
  .site-footer { color: var(--ink); background: var(--paper); }
}