:root {
  --paper: #f0eff7;
  --paper-deep: #e3e1ee;
  --ink: #171628;
  --ink-soft: #605d73;
  --night: #211d3a;
  --night-soft: #aaa6c1;
  --violet: #6650d9;
  --coral: #ff7257;
  --coral-soft: #ffb2a2;
  --cyan: #4bd2ce;
  --cyan-soft: #99f0eb;
  --lime: #d7ed78;
  --line: #d1cfe0;
  --display: "Arial Narrow", "Avenir Next Condensed", "Helvetica Neue", system-ui, sans-serif;
  --body: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, serif;
  --mono: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  color-scheme: light;
}

* {
  box-sizing: border-box;
}

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

body {
  min-width: 320px;
  margin: 0;
  overflow-x: hidden;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--body);
  font-size: 1.08rem;
  line-height: 1.65;
  text-rendering: optimizeLegibility;
}

img,
svg {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
  text-decoration-thickness: 0.09em;
  text-underline-offset: 0.14em;
}

a:hover {
  color: var(--violet);
}

:focus-visible {
  outline: 3px solid var(--coral);
  outline-offset: 4px;
}

.skip-link {
  position: fixed;
  top: 0.75rem;
  left: 0.75rem;
  z-index: 20;
  transform: translateY(-160%);
  padding: 0.65rem 0.9rem;
  background: var(--lime);
  color: var(--ink);
  font-family: var(--mono);
  font-size: 0.75rem;
  font-weight: 700;
  text-decoration: none;
}

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

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  border-bottom: 1px solid rgba(23, 22, 40, 0.14);
  background: rgba(240, 239, 247, 0.94);
  backdrop-filter: blur(14px);
}

.header-inner,
.footer-inner {
  display: flex;
  width: min(100% - 3rem, 1320px);
  min-height: 4rem;
  margin: 0 auto;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand {
  color: var(--ink);
  font-family: var(--mono);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-decoration: none;
  text-transform: uppercase;
}

.header-nav {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--ink-soft);
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.header-nav a {
  text-decoration: none;
}

.header-nav .is-current {
  color: var(--ink);
  text-decoration: underline;
  text-decoration-color: var(--coral);
  text-decoration-thickness: 0.2em;
  text-underline-offset: 0.35em;
}

.language-label {
  margin-left: 0.35rem;
  color: var(--ink-soft);
}

.hero {
  overflow: hidden;
  background: var(--ink);
  color: var(--paper);
}

.hero-inner {
  display: grid;
  width: min(100% - 3rem, 1440px);
  min-height: min(800px, calc(100vh - 4rem));
  margin: 0 auto;
  grid-template-columns: minmax(0, 0.82fr) minmax(0, 1.18fr);
  align-items: center;
  gap: clamp(2rem, 5vw, 7rem);
  padding: clamp(3.5rem, 8vw, 8rem) 0 clamp(3rem, 6vw, 6rem);
}

.hero-copy {
  position: relative;
  z-index: 1;
}

.eyebrow,
.section-kicker,
.section-aside,
.answer-label,
.panel-label,
.caption-kicker,
.model-index,
.limit-index,
.source-number,
.scale-value,
.figure-note,
.source-method,
.control-note,
.noscript-note,
.status-note,
.evidence-note {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.04em;
}

.eyebrow {
  display: flex;
  max-width: 34rem;
  margin: 0 0 1.6rem;
  align-items: center;
  gap: 0.75rem;
  color: var(--lime);
  line-height: 1.45;
  text-transform: uppercase;
}

.eyebrow-mark {
  display: inline-block;
  width: 0.7rem;
  height: 0.7rem;
  flex: 0 0 auto;
  border-radius: 50%;
  background: var(--coral);
  box-shadow: 0 0 0 0.3rem rgba(255, 114, 87, 0.18);
}

h1,
h2,
p {
  overflow-wrap: anywhere;
}

h1,
h2 {
  margin-top: 0;
  font-family: var(--display);
  font-weight: 800;
  letter-spacing: -0.06em;
  line-height: 0.94;
}

h1 {
  max-width: 10ch;
  margin-bottom: 2rem;
  color: var(--paper);
  font-size: clamp(3.5rem, 8.4vw, 8.2rem);
}

.dek {
  max-width: 42rem;
  margin: 0;
  color: #d9d6e8;
  font-size: clamp(1.12rem, 1.9vw, 1.42rem);
  line-height: 1.45;
}

.hero-answer {
  max-width: 39rem;
  margin-top: 2.2rem;
  padding: 1rem 0 1.1rem 1.1rem;
  border-left: 0.3rem solid var(--coral);
  background: rgba(255, 255, 255, 0.04);
}

.answer-label {
  margin: 0 0 0.3rem;
  color: var(--coral-soft);
  text-transform: uppercase;
}

.hero-answer p:last-child {
  max-width: 35rem;
  margin: 0;
  color: var(--paper);
  font-size: 1.02rem;
  line-height: 1.5;
}

.hero-links {
  display: flex;
  margin-top: 1.5rem;
  flex-wrap: wrap;
  align-items: center;
  gap: 1.25rem;
  color: var(--night-soft);
  font-family: var(--mono);
  font-size: 0.72rem;
}

.hero-links .text-link {
  color: var(--lime);
  font-weight: 700;
}

.hero-figure {
  min-width: 0;
  margin: 0;
}

.hero-visual {
  position: relative;
  overflow: hidden;
  border: 1px solid #504a72;
  box-shadow: 1.25rem 1.25rem 0 rgba(102, 80, 217, 0.22);
}

.hero-visual::before {
  position: absolute;
  top: 0;
  right: 0;
  width: 30%;
  height: 0.5rem;
  background: var(--coral);
  content: "";
}

.hero-visual svg {
  width: 100%;
  height: auto;
}

figcaption {
  margin-top: 1rem;
  color: var(--ink-soft);
  font-family: var(--mono);
  font-size: 0.72rem;
  line-height: 1.55;
}

.hero-figure figcaption {
  color: var(--night-soft);
}

.caption-kicker {
  display: block;
  margin-bottom: 0.35rem;
  color: var(--lime);
  text-transform: uppercase;
}

.reading-column {
  width: min(100% - 3rem, 900px);
  margin: 0 auto;
}

.reading-section {
  padding: clamp(4.5rem, 9vw, 8rem) 0;
  border-bottom: 1px solid var(--line);
}

.section-kicker {
  margin: 0 0 1.25rem;
  color: var(--violet);
  font-weight: 700;
  text-transform: uppercase;
}

h2 {
  max-width: 13ch;
  margin-bottom: 1.5rem;
  font-size: clamp(2.8rem, 6vw, 5.8rem);
}

.reading-section > p,
.mechanism-section > p,
.limits-section > p,
.sources-section > p {
  max-width: 45rem;
}

.lead {
  font-size: clamp(1.25rem, 2.1vw, 1.65rem);
  line-height: 1.45;
}

.figure-note,
.source-method,
.control-note,
.noscript-note,
.status-note,
.evidence-note {
  color: var(--ink-soft);
  line-height: 1.55;
}

.scale-figure {
  margin: 2.7rem 0 0;
  padding: 1.35rem 0 1.1rem;
  border-top: 1px solid var(--ink);
  border-bottom: 1px solid var(--ink);
}

.scale-line {
  display: grid;
  min-height: 3.5rem;
  grid-template-columns: 5.5rem 5.5rem minmax(0, 1fr);
  align-items: center;
  gap: 0.75rem;
  border-bottom: 1px dashed rgba(23, 22, 40, 0.2);
}

.scale-line:last-child {
  border-bottom: 0;
}

.scale-label {
  font-family: var(--display);
  font-size: 1.2rem;
  font-weight: 800;
  letter-spacing: -0.03em;
}

.scale-value {
  color: var(--ink-soft);
  white-space: nowrap;
}

.wave {
  display: block;
  height: 1.7rem;
  min-width: 0;
  border: 1px solid rgba(23, 22, 40, 0.2);
  background-color: rgba(255, 255, 255, 0.32);
}

.wave-wide {
  background-image: repeating-linear-gradient(90deg, transparent 0 2.4rem, var(--coral) 2.4rem 2.55rem, transparent 2.55rem 6.3rem);
}

.wave-mid {
  background-image: repeating-linear-gradient(90deg, transparent 0 1.35rem, var(--violet) 1.35rem 1.48rem, transparent 1.48rem 3.3rem);
}

.wave-tight {
  background-image: repeating-linear-gradient(90deg, transparent 0 0.35rem, var(--cyan) 0.35rem 0.48rem, transparent 0.48rem 0.95rem);
}

.section-heading-row {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 1.5rem;
}

.section-heading-row h2 {
  margin-bottom: 0;
}

.section-aside {
  margin: 0 0 0.45rem;
  color: var(--coral);
  text-align: right;
  text-transform: uppercase;
}

.explore-section {
  width: calc(100vw - max(1.5rem, (100vw - 900px) / 2));
  max-width: 1320px;
  margin-left: 50%;
  padding-right: max(1.5rem, (100vw - 900px) / 2);
  padding-left: max(1.5rem, (100vw - 900px) / 2);
  transform: translateX(-50%);
  background: var(--paper-deep);
}

.explore-section > p {
  max-width: 45rem;
}

.explorer-grid {
  display: grid;
  margin-top: 2.2rem;
  grid-template-columns: minmax(13rem, 0.65fr) minmax(0, 1.35fr);
  align-items: start;
  gap: 1.5rem;
}

.control-rail {
  padding: 1.4rem;
  border-top: 0.35rem solid var(--violet);
  background: var(--paper);
}

fieldset {
  min-width: 0;
  margin: 0 0 1.5rem;
  padding: 0;
  border: 0;
}

fieldset:last-of-type {
  margin-bottom: 0.5rem;
}

legend {
  margin-bottom: 0.65rem;
  color: var(--ink-soft);
  font-family: var(--mono);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.choice-grid {
  display: grid;
  gap: 0.5rem;
}

.choice-grid-three {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.choice-grid-two {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.choice {
  position: relative;
  display: flex;
  min-width: 0;
  min-height: 2.75rem;
  cursor: pointer;
}

.choice input {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
}

.choice span {
  display: flex;
  width: 100%;
  min-height: 2.75rem;
  padding: 0.45rem 0.55rem;
  flex-direction: column;
  justify-content: center;
  border: 1px solid var(--line);
  background: var(--paper);
  color: var(--ink);
  font-family: var(--mono);
  font-size: 0.82rem;
  font-weight: 700;
  line-height: 1.2;
  text-align: center;
}

.choice small {
  display: block;
  margin-top: 0.2rem;
  color: var(--ink-soft);
  font-size: 0.6rem;
  font-weight: 400;
}

.choice input:checked + span {
  border-color: var(--violet);
  background: var(--violet);
  color: #fff;
  box-shadow: 0.25rem 0.25rem 0 var(--coral);
}

.choice input:checked + span small {
  color: #e7e3ff;
}

.choice:focus-within span {
  outline: 3px solid var(--coral);
  outline-offset: 3px;
}

.control-note {
  margin: 1.2rem 0 0;
  font-size: 0.68rem;
}

.model-panel {
  min-width: 0;
  padding: 1.15rem;
  background: var(--night);
  color: var(--paper);
}

.model-panel-head {
  display: flex;
  min-width: 0;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
}

.model-panel-head strong {
  display: block;
  margin-top: 0.25rem;
  font-family: var(--display);
  font-size: 1.45rem;
  letter-spacing: -0.04em;
  line-height: 1;
}

.panel-label {
  display: block;
  color: var(--lime);
  font-size: 0.68rem;
  text-transform: uppercase;
}

.model-index {
  max-width: 10rem;
  color: var(--night-soft);
  font-size: 0.63rem;
  line-height: 1.35;
  text-align: right;
  text-transform: uppercase;
}

.model-visual {
  overflow: hidden;
  margin: 1.2rem 0 1.25rem;
  border: 1px solid #504a72;
}

.model-visual svg {
  width: 100%;
  height: auto;
}

.model-jump,
.model-end {
  opacity: 0;
  transition: opacity 180ms ease;
}

.model-panel[data-amplitude="0.4"] .jump-0-4,
.model-panel[data-amplitude="1"] .jump-1,
.model-panel[data-amplitude="6"] .jump-6 {
  opacity: 1;
}

.meter-row {
  margin-top: 0.85rem;
}

.meter-copy {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  color: var(--night-soft);
  font-family: var(--mono);
  font-size: 0.72rem;
}

.meter-copy strong {
  color: var(--paper);
  font-size: 0.9rem;
}

.meter {
  height: 0.7rem;
  margin-top: 0.35rem;
  overflow: hidden;
  border: 1px solid #504a72;
  background: #171628;
}

.meter span {
  display: block;
  width: 68%;
  height: 100%;
  background: var(--coral);
  transition: width 180ms ease;
}

.meter-fine span {
  width: 32%;
  background: var(--cyan);
}

.model-description {
  margin: 1.25rem 0 0;
  color: var(--paper);
  font-size: 0.9rem;
  line-height: 1.5;
}

.boundary-note {
  display: flex;
  margin: 1rem 0 0;
  padding-top: 0.85rem;
  align-items: flex-start;
  gap: 0.55rem;
  border-top: 1px solid #504a72;
  color: var(--night-soft);
  font-family: var(--mono);
  font-size: 0.68rem;
  line-height: 1.5;
}

.boundary-note span {
  display: inline-grid;
  width: 1.1rem;
  height: 1.1rem;
  flex: 0 0 auto;
  place-items: center;
  border: 1px solid var(--lime);
  border-radius: 50%;
  color: var(--lime);
  font-weight: 700;
}

.published-readout {
  margin-top: 1.5rem;
  padding: 1.1rem 1.25rem;
  border-left: 0.35rem solid var(--cyan);
  background: var(--night);
  color: var(--paper);
}

.published-readout .panel-label {
  color: var(--cyan-soft);
}

.published-readout p:last-child {
  max-width: 48rem;
  margin: 0.35rem 0 0;
  font-size: 0.98rem;
  line-height: 1.5;
}

.noscript-note {
  margin-top: 1.2rem;
  padding: 0.85rem 1rem;
  border: 1px dashed var(--violet);
  background: var(--paper);
}

.fact-strip {
  display: grid;
  margin: 2rem 0 2.5rem;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border-top: 1px solid var(--ink);
  border-bottom: 1px solid var(--ink);
}

.fact-strip > div {
  min-height: 8.5rem;
  padding: 1rem 1rem 1rem 0;
  border-right: 1px solid var(--line);
}

.fact-strip > div + div {
  padding-left: 1rem;
}

.fact-strip > div:last-child {
  border-right: 0;
}

.fact-strip strong {
  display: block;
  color: var(--violet);
  font-family: var(--display);
  font-size: 2.8rem;
  letter-spacing: -0.06em;
  line-height: 1;
}

.fact-strip span {
  display: block;
  max-width: 11rem;
  margin-top: 0.65rem;
  color: var(--ink-soft);
  font-family: var(--mono);
  font-size: 0.66rem;
  line-height: 1.45;
}

.comparison-list {
  border-top: 2px solid var(--ink);
}

.comparison-row {
  display: grid;
  min-width: 0;
  grid-template-columns: minmax(7rem, 0.75fr) minmax(7rem, 0.8fr) minmax(0, 1.45fr);
  align-items: start;
  gap: 1rem;
  padding: 1.1rem 0;
  border-bottom: 1px solid var(--line);
  font-size: 0.92rem;
  line-height: 1.45;
}

.comparison-row small {
  color: var(--ink-soft);
  font-family: var(--mono);
  font-size: 0.66rem;
  font-weight: 400;
}

.comparison-label {
  color: var(--violet);
  font-family: var(--mono);
  font-size: 0.75rem;
  font-weight: 700;
}

.comparison-row strong {
  color: var(--ink);
}

.comparison-head {
  padding: 0.65rem 0;
  color: var(--ink-soft);
  font-family: var(--mono);
  font-size: 0.65rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.comparison-head span {
  min-width: 0;
}

.evidence-note {
  margin-top: 1.25rem;
  padding-left: 1rem;
  border-left: 0.25rem solid var(--coral);
}

.mechanism-figure {
  margin: 2.5rem 0 0;
  padding: 1.25rem 1.25rem 1.5rem;
  border: 1px solid var(--line);
  background: #e8e6f1;
}

.mechanism-axis {
  display: flex;
  justify-content: space-between;
  gap: 0.75rem;
  color: var(--ink-soft);
  font-family: var(--mono);
  font-size: 0.62rem;
  text-transform: uppercase;
}

.signal-track {
  position: relative;
  display: grid;
  height: 3.8rem;
  margin-top: 0.75rem;
  grid-template-columns: 4.2rem minmax(0, 1fr);
  align-items: center;
  gap: 0.85rem;
}

.signal-track::before {
  position: absolute;
  top: 50%;
  right: 0;
  left: 5rem;
  height: 1px;
  background: rgba(23, 22, 40, 0.22);
  content: "";
}

.track-label {
  position: relative;
  z-index: 1;
  color: var(--ink-soft);
  font-family: var(--mono);
  font-size: 0.7rem;
}

.signal-track i {
  position: relative;
  z-index: 1;
  display: block;
  height: 100%;
  border-bottom: 3px solid var(--violet);
  background: repeating-linear-gradient(90deg, transparent 0 0.5rem, rgba(102, 80, 217, 0.22) 0.5rem 0.65rem, transparent 0.65rem 1.6rem);
  transform: skewX(-18deg);
}

.signal-track-coarse i {
  width: 58%;
  border-color: var(--coral);
  background-image: repeating-linear-gradient(90deg, transparent 0 1.9rem, rgba(255, 114, 87, 0.32) 1.9rem 2.1rem, transparent 2.1rem 5rem);
}

.signal-track-reference i {
  width: 76%;
  border-color: var(--violet);
}

.signal-track-fine i {
  width: 92%;
  border-color: var(--cyan);
  background-image: repeating-linear-gradient(90deg, transparent 0 0.25rem, rgba(75, 210, 206, 0.36) 0.25rem 0.4rem, transparent 0.4rem 0.8rem);
}

.limit-grid {
  display: grid;
  margin-top: 2.3rem;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
}

.limit-grid > div {
  min-width: 0;
  min-height: 14rem;
  padding: 1.1rem;
  background: var(--paper);
}

.limit-index {
  color: var(--coral);
  font-weight: 700;
}

.limit-grid p {
  margin: 2.8rem 0 0;
  font-size: 0.95rem;
  line-height: 1.5;
}

.status-note {
  margin-top: 2rem;
  padding: 1rem 1.1rem;
  border-top: 1px solid var(--ink);
  border-bottom: 1px solid var(--ink);
}

.source-list {
  margin: 2.5rem 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--ink);
}

.source-list li {
  display: grid;
  min-width: 0;
  grid-template-columns: 2.4rem minmax(0, 1fr);
  gap: 1rem;
  padding: 1.2rem 0;
  border-bottom: 1px solid var(--line);
}

.source-number {
  color: var(--coral);
  font-weight: 700;
}

.source-list cite {
  display: block;
  font-size: 0.98rem;
  font-style: normal;
  line-height: 1.45;
}

.source-list a {
  display: inline-block;
  margin-top: 0.5rem;
  color: var(--violet);
  font-family: var(--mono);
  font-size: 0.68rem;
  font-weight: 700;
  line-height: 1.45;
}

.source-list a + a {
  margin-left: 0.75rem;
}

.source-method {
  margin-top: 1.5rem;
}

.site-footer {
  background: var(--night);
  color: var(--night-soft);
}

.footer-inner {
  min-height: 7rem;
  font-family: var(--mono);
  font-size: 0.7rem;
}

.footer-inner p {
  margin: 0;
}

.footer-inner a {
  color: var(--paper);
}

.footer-inner > a {
  text-decoration: none;
}

.back-to-top {
  position: fixed;
  right: 1rem;
  bottom: 1rem;
  display: grid;
  width: 2.75rem;
  height: 2.75rem;
  place-items: center;
  border: 1px solid var(--ink);
  background: var(--lime);
  color: var(--ink);
  font-family: var(--mono);
  font-size: 1.2rem;
  font-weight: 700;
  line-height: 1;
  text-decoration: none;
}

.not-found {
  width: min(100% - 2rem, 46rem);
  min-height: 100vh;
  margin: 0 auto;
  padding: 20vh 0 4rem;
}

.not-found h1 {
  max-width: 12ch;
  margin-bottom: 1.25rem;
  color: var(--ink);
  font-size: clamp(3.5rem, 12vw, 7rem);
}

.not-found-link {
  display: inline-flex;
  min-height: 2.75rem;
  margin-top: 1rem;
  align-items: center;
  padding: 0.5rem 0.8rem;
  border: 1px solid var(--ink);
  background: var(--lime);
  font-family: var(--mono);
  font-size: 0.75rem;
  font-weight: 700;
  text-decoration: none;
}

@media (max-width: 900px) {
  .hero-inner {
    grid-template-columns: minmax(0, 1fr);
  }

  .hero-copy {
    max-width: 48rem;
  }

  .hero-figure {
    width: min(100%, 720px);
    justify-self: end;
  }

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

  .control-rail {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
  }

  .control-rail fieldset,
  .control-note {
    margin: 0;
  }

  .control-note {
    grid-column: 1 / -1;
  }
}

@media (max-width: 640px) {
  body {
    font-size: 1rem;
  }

  .header-inner,
  .footer-inner,
  .hero-inner,
  .reading-column {
    width: min(100% - 2rem, 900px);
  }

  .header-inner {
    min-height: 3.5rem;
  }

  .header-nav {
    gap: 0.45rem;
  }

  .header-nav > a:first-child,
  .language-label {
    display: none;
  }

  .hero-inner {
    min-height: auto;
    gap: 3rem;
    padding: 3.2rem 0 4.5rem;
  }

  h1 {
    max-width: 9ch;
    font-size: clamp(3.2rem, 17vw, 5.4rem);
  }

  .dek {
    font-size: 1.05rem;
  }

  .hero-answer {
    margin-top: 1.65rem;
  }

  .hero-visual {
    box-shadow: 0.7rem 0.7rem 0 rgba(102, 80, 217, 0.22);
  }

  .reading-section {
    padding: 4rem 0;
  }

  h2 {
    font-size: clamp(2.65rem, 14vw, 4.4rem);
  }

  .section-heading-row {
    display: block;
  }

  .section-aside {
    margin-top: 1rem;
    text-align: left;
  }

  .explore-section {
    width: 100%;
    margin-left: 0;
    padding-right: 1rem;
    padding-left: 1rem;
    transform: none;
  }

  .control-rail {
    display: block;
  }

  .control-rail fieldset {
    margin-bottom: 1.5rem;
  }

  .control-note {
    margin-top: 1.2rem;
  }

  .model-panel {
    padding: 0.85rem;
  }

  .model-panel-head {
    display: block;
  }

  .model-index {
    display: block;
    max-width: none;
    margin-top: 0.55rem;
    text-align: left;
  }

  .fact-strip {
    grid-template-columns: 1fr;
  }

  .fact-strip > div,
  .fact-strip > div + div {
    min-height: auto;
    padding: 1rem 0;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .fact-strip > div:last-child {
    border-bottom: 0;
  }

  .comparison-head {
    display: none;
  }

  .comparison-row {
    display: block;
    padding: 1rem 0 1.25rem;
  }

  .comparison-row > span,
  .comparison-row > strong {
    display: block;
    margin-bottom: 0.45rem;
  }

  .comparison-row > strong {
    margin-bottom: 0;
  }

  .mechanism-figure {
    padding: 1rem 0.75rem 1.25rem;
  }

  .mechanism-axis {
    font-size: 0.55rem;
  }

  .signal-track {
    grid-template-columns: 3.6rem minmax(0, 1fr);
    gap: 0.5rem;
  }

  .signal-track::before {
    left: 4.1rem;
  }

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

  .limit-grid > div {
    min-height: auto;
  }

  .limit-grid p {
    margin-top: 1.4rem;
  }

  .footer-inner {
    min-height: 9rem;
    align-items: flex-start;
    flex-direction: column;
    justify-content: center;
  }
}

@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;
  }
}