@font-face {
  font-family: "UG Sans";
  src: url("./fonts/ug-sans-kr.woff2") format("woff2");
  font-style: normal;
  font-weight: 100 900;
  font-display: swap;
}

@font-face {
  font-family: "UG Serif";
  src: url("./fonts/ug-serif-kr.woff2") format("woff2");
  font-style: normal;
  font-weight: 100 900;
  font-display: swap;
}

:root {
  color-scheme: dark;
  --ink: #eef2f8;
  --ink-strong: #ffffff;
  --muted: #9aa6b8;
  --muted-strong: #c3ccda;
  --paper: #090d14;
  --paper-2: #0f1520;
  --paper-3: #151d2b;
  --paper-invert: #f4f0e8;
  --line: #283245;
  --line-strong: #41506a;
  --accent: #f4b942;
  --accent-ink: #191202;
  --mint: #59dda0;
  --red: #ff7479;
  --blue: #82a9ff;
  --shadow: 0 28px 80px rgba(0, 0, 0, 0.28);
  --radius-sm: 0.45rem;
  --radius: 0.9rem;
  --radius-lg: 1.4rem;
  --measure: 44rem;
  --wrap: 82rem;
  --gutter: clamp(1.1rem, 3vw, 2.4rem);
  --sans: "UG Sans", "Noto Sans KR", system-ui, -apple-system, sans-serif;
  --serif: "UG Serif", "Noto Serif KR", Georgia, serif;
}

:root[data-theme="light"] {
  color-scheme: light;
  --ink: #182235;
  --ink-strong: #0d1626;
  --muted: #657188;
  --muted-strong: #46526a;
  --paper: #f4f1e9;
  --paper-2: #fbf9f4;
  --paper-3: #eae6dc;
  --paper-invert: #111827;
  --line: #d8d2c5;
  --line-strong: #aca494;
  --accent: #a96d00;
  --accent-ink: #fffaf0;
  --mint: #087c56;
  --red: #b52d3b;
  --blue: #255dc4;
  --shadow: 0 28px 80px rgba(33, 37, 44, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-synthesis: none;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

body {
  min-width: 20rem;
  margin: 0;
  background:
    linear-gradient(90deg, transparent calc(100% - 1px), color-mix(in srgb, var(--line) 52%, transparent) 0) 0 0 / calc(100% / 12) 100%,
    var(--paper);
  color: var(--ink);
  font-size: clamp(1rem, 0.96rem + 0.14vw, 1.08rem);
  line-height: 1.72;
  letter-spacing: -0.018em;
  word-break: keep-all;
  overflow-wrap: break-word;
}

button,
input,
textarea,
select {
  font: inherit;
}

a {
  color: inherit;
}

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

::selection {
  background: var(--accent);
  color: var(--accent-ink);
}

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

.skip-link {
  position: fixed;
  left: 1rem;
  top: 1rem;
  z-index: 1000;
  padding: 0.65rem 0.9rem;
  background: var(--accent);
  color: var(--accent-ink);
  font-weight: 760;
  transform: translateY(-200%);
}

.skip-link:focus {
  transform: none;
}

.lang-en {
  display: none !important;
}

:root[data-lang="en"] .lang-ko {
  display: none !important;
}

:root[data-lang="en"] .lang-en {
  display: initial !important;
}

.site-status {
  min-height: 2.15rem;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0.42rem var(--gutter);
  border-bottom: 1px solid color-mix(in srgb, var(--accent) 52%, transparent);
  background: color-mix(in srgb, var(--accent) 12%, var(--paper));
  color: var(--muted-strong);
  font-size: 0.75rem;
  font-weight: 650;
  letter-spacing: 0.06em;
  text-align: center;
}

.site-status::before {
  width: 0.45rem;
  height: 0.45rem;
  margin-right: 0.55rem;
  border-radius: 50%;
  background: var(--accent);
  content: "";
  box-shadow: 0 0 0 0.25rem color-mix(in srgb, var(--accent) 13%, transparent);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid var(--line);
  background: color-mix(in srgb, var(--paper) 88%, transparent);
  backdrop-filter: blur(18px);
}

.site-nav {
  width: min(100%, var(--wrap));
  min-height: 4.6rem;
  margin: 0 auto;
  padding: 0 var(--gutter);
  display: flex;
  align-items: center;
  gap: 1rem;
}

.brand {
  display: inline-flex;
  align-items: baseline;
  gap: 0.48rem;
  margin-right: auto;
  text-decoration: none;
  white-space: nowrap;
}

.brand-mark {
  color: var(--accent);
  font-size: 0.72rem;
  font-weight: 850;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

.brand-name {
  color: var(--ink-strong);
  font-size: 0.98rem;
  font-weight: 760;
  letter-spacing: -0.035em;
}

.nav-links,
.nav-tools {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.nav-links a,
.nav-button {
  min-height: 2.45rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid transparent;
  border-radius: 999px;
  padding: 0.4rem 0.72rem;
  background: transparent;
  color: var(--muted-strong);
  font-size: 0.78rem;
  font-weight: 650;
  letter-spacing: -0.01em;
  text-decoration: none;
  cursor: pointer;
}

.nav-links a:hover,
.nav-links a[aria-current="page"],
.nav-button:hover,
.nav-button[aria-pressed="true"] {
  border-color: var(--line);
  background: var(--paper-3);
  color: var(--ink-strong);
}

.nav-tools {
  margin-left: 0.35rem;
  padding-left: 0.6rem;
  border-left: 1px solid var(--line);
}

.nav-button.is-accent {
  border-color: color-mix(in srgb, var(--accent) 40%, var(--line));
  color: var(--accent);
}

.site-main {
  overflow: clip;
}

.wrap {
  width: min(100%, var(--wrap));
  margin: 0 auto;
  padding-inline: var(--gutter);
}

.issue-line {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: clamp(3rem, 8vw, 7rem);
  padding-top: 1.1rem;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.71rem;
  font-weight: 720;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.hero {
  min-height: min(54rem, calc(100svh - 6.75rem));
  display: grid;
  grid-template-columns: minmax(0, 8fr) minmax(15rem, 4fr);
  align-content: space-between;
  column-gap: clamp(2rem, 6vw, 6rem);
  padding-block: clamp(2rem, 5vw, 4.5rem) clamp(4rem, 8vw, 7rem);
}

.hero-copy {
  align-self: center;
}

.eyebrow {
  margin: 0 0 1.1rem;
  color: var(--accent);
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

:root[data-lang="ko"] .eyebrow {
  letter-spacing: 0.08em;
}

.display,
.section-title,
.journey-title {
  margin: 0;
  color: var(--ink-strong);
  font-family: var(--serif);
  font-weight: 720;
  letter-spacing: -0.058em;
  line-height: 1.08;
}

.display {
  max-width: 13ch;
  font-size: clamp(3.2rem, 8.6vw, 8.2rem);
}

:root[data-lang="en"] .display {
  max-width: 10ch;
  letter-spacing: -0.065em;
  line-height: 0.95;
}

.hero-side {
  align-self: end;
  padding-left: clamp(0rem, 2vw, 1.6rem);
  border-left: 1px solid var(--line-strong);
}

.hero-side p {
  max-width: 34rem;
  margin: 0;
  color: var(--muted-strong);
  font-size: clamp(1.05rem, 1rem + 0.3vw, 1.28rem);
  line-height: 1.72;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  margin-top: 2rem;
}

.button {
  min-height: 3rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  padding: 0.72rem 1.1rem;
  background: var(--paper-2);
  color: var(--ink-strong);
  font-size: 0.82rem;
  font-weight: 720;
  text-decoration: none;
  transition: transform 160ms ease, border-color 160ms ease, background 160ms ease;
}

.button:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
}

.button.primary {
  border-color: var(--accent);
  background: var(--accent);
  color: var(--accent-ink);
}

.button-arrow {
  font-size: 1.15em;
}

.status-card {
  margin-top: 2rem;
  padding: 1rem 1.1rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--paper-2);
  color: var(--muted);
  font-size: 0.78rem;
  line-height: 1.62;
}

.status-card strong {
  color: var(--ink-strong);
}

.metric-strip {
  border-block: 1px solid var(--line);
  background: var(--paper-2);
}

.metrics {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
}

.metric {
  min-height: 9.3rem;
  padding: 1.3rem 1rem;
  border-right: 1px solid var(--line);
}

.metric:first-child {
  border-left: 1px solid var(--line);
}

.metric-value {
  display: block;
  color: var(--ink-strong);
  font-family: var(--serif);
  font-size: clamp(1.7rem, 2.8vw, 3rem);
  font-weight: 720;
  letter-spacing: -0.055em;
  line-height: 1;
}

.metric-label {
  display: block;
  max-width: 13ch;
  margin-top: 0.85rem;
  color: var(--muted);
  font-size: 0.7rem;
  font-weight: 620;
  letter-spacing: 0.01em;
  line-height: 1.48;
}

.editorial-section {
  padding-block: clamp(5rem, 10vw, 9rem);
  border-bottom: 1px solid var(--line);
}

.section-grid {
  display: grid;
  grid-template-columns: minmax(9rem, 3fr) minmax(0, 9fr);
  gap: clamp(2rem, 8vw, 8rem);
}

.section-number {
  position: sticky;
  top: 7.3rem;
  align-self: start;
  display: flex;
  align-items: center;
  gap: 0.7rem;
  color: var(--muted);
  font-size: 0.69rem;
  font-weight: 760;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.section-number::before {
  width: 2.8rem;
  height: 1px;
  background: var(--accent);
  content: "";
}

.section-title {
  max-width: 16ch;
  font-size: clamp(2.3rem, 5.2vw, 5.4rem);
}

.section-lead {
  max-width: var(--measure);
  margin: 2rem 0 0;
  color: var(--muted-strong);
  font-size: clamp(1.08rem, 1rem + 0.42vw, 1.38rem);
  line-height: 1.75;
}

.split-copy {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(1.5rem, 5vw, 4rem);
  margin-top: clamp(3rem, 7vw, 6rem);
}

.copy-block {
  border-top: 1px solid var(--line-strong);
  padding-top: 1rem;
}

.copy-block h3,
.principle h3,
.rule-card h3 {
  margin: 0 0 0.75rem;
  color: var(--ink-strong);
  font-size: 1rem;
  font-weight: 760;
  letter-spacing: -0.03em;
}

.copy-block p,
.principle p,
.rule-card p {
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
  line-height: 1.72;
}

.principles {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  margin-top: clamp(3rem, 7vw, 6rem);
  border: 1px solid var(--line);
  background: var(--line);
}

.principle {
  min-height: 19rem;
  padding: clamp(1.4rem, 3vw, 2.2rem);
  background: var(--paper-2);
}

.principle-index {
  display: block;
  margin-bottom: 5rem;
  color: var(--accent);
  font-size: 0.67rem;
  font-weight: 800;
  letter-spacing: 0.15em;
}

.boundary-panel {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin-top: 3rem;
  border: 1px solid var(--line);
  background: var(--line);
}

.boundary-column {
  padding: clamp(1.4rem, 3vw, 2.3rem);
  background: var(--paper-2);
}

.boundary-column h3 {
  margin: 0 0 1.4rem;
  color: var(--mint);
  font-size: 0.73rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.boundary-column.is-not h3 {
  color: var(--red);
}

.boundary-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.boundary-list li {
  position: relative;
  padding: 0.9rem 0 0.9rem 1.5rem;
  border-top: 1px solid var(--line);
  color: var(--muted-strong);
  font-size: 0.88rem;
}

.boundary-list li::before {
  position: absolute;
  left: 0;
  color: var(--mint);
  content: "+";
  font-weight: 800;
}

.is-not .boundary-list li::before {
  color: var(--red);
  content: "−";
}

.page-hero {
  min-height: 39rem;
  padding-block: clamp(3.5rem, 8vw, 7.5rem);
  border-bottom: 1px solid var(--line);
}

.page-hero .display {
  max-width: 14ch;
  font-size: clamp(3rem, 7.2vw, 7.4rem);
}

.page-intro {
  max-width: var(--measure);
  margin: 2.2rem 0 0 auto;
  color: var(--muted-strong);
  font-size: clamp(1.08rem, 1rem + 0.45vw, 1.42rem);
}

.figure-shell {
  margin-top: clamp(3rem, 7vw, 6rem);
  padding: clamp(1rem, 2vw, 1.8rem);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-lg);
  background: var(--paper-2);
  box-shadow: var(--shadow);
}

.figure-shell svg {
  width: 100%;
  height: auto;
}

.figure-shell .svg-panel {
  fill: var(--paper-3);
  stroke: var(--line-strong);
  stroke-width: 1;
}

.figure-shell .svg-accent {
  fill: var(--accent);
}

.figure-shell .svg-line {
  fill: none;
  stroke: var(--line-strong);
  stroke-width: 2;
}

.figure-shell text {
  fill: var(--ink);
  font-family: var(--sans);
  font-size: 14px;
  font-weight: 650;
}

.figure-shell .svg-small {
  fill: var(--muted);
  font-size: 10px;
  font-weight: 550;
  letter-spacing: 0.02em;
}

.figure-caption {
  display: flex;
  justify-content: space-between;
  gap: 2rem;
  margin-top: 1rem;
  color: var(--muted);
  font-size: 0.72rem;
}

.rule-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin-top: 3rem;
  border: 1px solid var(--line);
  background: var(--line);
}

.rule-card {
  min-height: 23rem;
  padding: clamp(1.5rem, 4vw, 3rem);
  background: var(--paper-2);
}

.rule-id {
  display: inline-flex;
  margin-bottom: 6rem;
  padding: 0.3rem 0.55rem;
  border: 1px solid color-mix(in srgb, var(--accent) 55%, var(--line));
  border-radius: 999px;
  color: var(--accent);
  font-size: 0.66rem;
  font-weight: 800;
  letter-spacing: 0.12em;
}

.contract-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0;
  margin: 3rem 0 0;
  padding: 0;
  border-top: 1px solid var(--line-strong);
  list-style: none;
  counter-reset: contract;
}

.contract-list li {
  counter-increment: contract;
  min-height: 7.3rem;
  padding: 1.3rem 1rem 1.3rem 3.5rem;
  border-bottom: 1px solid var(--line);
  color: var(--muted-strong);
  font-size: 0.86rem;
}

.contract-list li:nth-child(odd) {
  border-right: 1px solid var(--line);
}

.contract-list li::before {
  float: left;
  margin-left: -2.5rem;
  color: var(--accent);
  content: counter(contract, decimal-leading-zero);
  font-size: 0.67rem;
  font-weight: 800;
  letter-spacing: 0.08em;
}

.guide-flow {
  display: grid;
  gap: 1px;
  margin-top: 3.5rem;
  border: 1px solid var(--line);
  background: var(--line);
  counter-reset: guide;
}

.guide-step {
  counter-increment: guide;
  display: grid;
  grid-template-columns: 7rem minmax(0, 1fr) minmax(14rem, 0.72fr);
  gap: 1.5rem;
  align-items: center;
  min-height: 11rem;
  padding: clamp(1.2rem, 3vw, 2rem);
  background: var(--paper-2);
}

.guide-step::before {
  color: var(--accent);
  content: "0" counter(guide);
  font-family: var(--serif);
  font-size: 2.4rem;
  font-weight: 720;
  letter-spacing: -0.05em;
}

.guide-step h3 {
  margin: 0 0 0.5rem;
  color: var(--ink-strong);
  font-size: 1.05rem;
  letter-spacing: -0.035em;
}

.guide-step p {
  margin: 0;
  color: var(--muted);
  font-size: 0.88rem;
}

.wireframe {
  position: relative;
  min-height: 6.6rem;
  padding: 0.8rem;
  border: 1px solid var(--line-strong);
  border-radius: 0.55rem;
  background: var(--paper);
}

.wireframe-bar,
.wireframe-line,
.wireframe-card {
  display: block;
  border-radius: 999px;
  background: var(--line-strong);
}

.wireframe-bar {
  width: 55%;
  height: 0.38rem;
  margin-bottom: 0.7rem;
  background: var(--accent);
}

.wireframe-line {
  width: 88%;
  height: 0.25rem;
  margin: 0.45rem 0;
}

.wireframe-line.short {
  width: 58%;
}

.wireframe-card {
  position: absolute;
  right: 0.8rem;
  bottom: 0.8rem;
  width: 36%;
  height: 2.4rem;
  border: 1px solid color-mix(in srgb, var(--accent) 45%, var(--line));
  border-radius: 0.4rem;
  background: color-mix(in srgb, var(--accent) 12%, var(--paper-3));
}

.term-table {
  width: 100%;
  margin-top: 3rem;
  border-collapse: collapse;
  font-size: 0.86rem;
}

.term-table th,
.term-table td {
  padding: 1rem;
  border-block: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

.term-table th {
  width: 25%;
  color: var(--accent);
  font-size: 0.68rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.term-table td {
  color: var(--muted-strong);
}

.journey-track {
  position: relative;
  margin-top: 3rem;
  padding-left: clamp(2rem, 6vw, 6rem);
}

.journey-track::before {
  position: absolute;
  top: 0.7rem;
  bottom: 0;
  left: 0.55rem;
  width: 1px;
  background: var(--line-strong);
  content: "";
}

.journey-entry {
  position: relative;
  min-height: 25rem;
  padding: 0 0 clamp(5rem, 12vw, 10rem);
}

.journey-entry::before {
  position: absolute;
  top: 0.55rem;
  left: calc(-1 * clamp(2rem, 6vw, 6rem) + 0.18rem);
  width: 0.74rem;
  height: 0.74rem;
  border: 2px solid var(--paper);
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 1px var(--accent);
  content: "";
}

.journey-kicker {
  margin: 0 0 1rem;
  color: var(--accent);
  font-size: 0.67rem;
  font-weight: 820;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.journey-title {
  max-width: 15ch;
  font-size: clamp(2rem, 4.6vw, 4.7rem);
}

.journey-entry p {
  max-width: 43rem;
  margin: 1.7rem 0 0;
  color: var(--muted-strong);
}

.journey-entry.is-stop {
  padding: clamp(2rem, 5vw, 4rem);
  border: 1px solid color-mix(in srgb, var(--red) 45%, var(--line));
  border-radius: var(--radius-lg);
  background: color-mix(in srgb, var(--red) 5%, var(--paper-2));
}

.journey-entry.is-stop::before {
  left: calc(-1 * clamp(2rem, 6vw, 6rem) - 0.38rem);
  background: var(--red);
  box-shadow: 0 0 0 1px var(--red);
}

.journey-entry.is-stop .journey-kicker {
  color: var(--red);
}

.proof-note {
  margin-top: 2rem;
  padding: 1rem 1.2rem;
  border-left: 3px solid var(--accent);
  background: var(--paper-3);
  color: var(--muted);
  font-size: 0.78rem;
}

.site-footer {
  padding-block: clamp(3rem, 6vw, 5rem);
  background: var(--paper-2);
}

.footer-grid {
  display: grid;
  grid-template-columns: 4fr 8fr;
  gap: 3rem;
}

.footer-brand {
  color: var(--ink-strong);
  font-family: var(--serif);
  font-size: 1.35rem;
  font-weight: 720;
  letter-spacing: -0.04em;
}

.footer-copy {
  max-width: 48rem;
  margin: 0;
  color: var(--muted);
  font-size: 0.75rem;
  line-height: 1.68;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 1.3rem;
  color: var(--muted-strong);
  font-size: 0.72rem;
  font-weight: 680;
}

.footer-links a:hover {
  color: var(--accent);
}

.graph-sitebar {
  height: 3.6rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.55rem 0.8rem;
  border-bottom: 1px solid var(--line);
  background: var(--paper);
}

.graph-sitebar .brand {
  margin-right: auto;
}

.graph-sitebar .nav-button,
.graph-sitebar .button {
  min-height: 2.25rem;
  padding-block: 0.3rem;
}

@media (max-width: 72rem) {
  .nav-links a:nth-child(2),
  .nav-links a:nth-child(3) {
    display: none;
  }

  .metrics {
    grid-template-columns: repeat(3, 1fr);
  }

  .metric:nth-child(4) {
    border-left: 1px solid var(--line);
  }

  .metric:nth-child(-n + 3) {
    border-bottom: 1px solid var(--line);
  }
}

@media (max-width: 56rem) {
  body {
    background: var(--paper);
  }

  .site-nav {
    min-height: 4rem;
  }

  .brand-mark {
    display: none;
  }

  .nav-links {
    display: none;
  }

  .hero {
    min-height: auto;
    grid-template-columns: 1fr;
    gap: 3rem;
  }

  .display {
    font-size: clamp(3rem, 13vw, 6rem);
  }

  .hero-side {
    padding: 1.5rem 0 0;
    border-top: 1px solid var(--line-strong);
    border-left: 0;
  }

  .section-grid,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .section-number {
    position: static;
  }

  .principles,
  .rule-grid,
  .boundary-panel {
    grid-template-columns: 1fr;
  }

  .principle {
    min-height: 15rem;
  }

  .principle-index,
  .rule-id {
    margin-bottom: 3rem;
  }

  .guide-step {
    grid-template-columns: 4rem minmax(0, 1fr);
  }

  .guide-step .wireframe {
    grid-column: 2;
  }
}

@media (max-width: 38rem) {
  .site-status {
    font-size: 0.66rem;
    letter-spacing: 0.02em;
  }

  .site-nav {
    gap: 0.4rem;
    padding-inline: 0.8rem;
  }

  .brand-name {
    font-size: 0.88rem;
  }

  .nav-tools {
    gap: 0;
    margin-left: 0;
    padding-left: 0.25rem;
  }

  .nav-button {
    min-height: 2.2rem;
    padding-inline: 0.5rem;
    font-size: 0.7rem;
  }

  .hero {
    padding-top: 2rem;
  }

  .issue-line {
    margin-bottom: 4rem;
  }

  .metrics {
    grid-template-columns: repeat(2, 1fr);
  }

  .metric:nth-child(3),
  .metric:nth-child(5) {
    border-left: 1px solid var(--line);
  }

  .metric:nth-child(-n + 4) {
    border-bottom: 1px solid var(--line);
  }

  .metric-value {
    font-size: 1.8rem;
  }

  .split-copy,
  .contract-list {
    grid-template-columns: 1fr;
  }

  .contract-list li:nth-child(odd) {
    border-right: 0;
  }

  .guide-step {
    grid-template-columns: 1fr;
    gap: 0.7rem;
  }

  .guide-step .wireframe {
    grid-column: 1;
    margin-top: 0.8rem;
  }

  .term-table,
  .term-table tbody,
  .term-table tr,
  .term-table th,
  .term-table td {
    display: block;
    width: 100%;
  }

  .term-table th {
    padding-bottom: 0.2rem;
    border-bottom: 0;
  }

  .term-table td {
    padding-top: 0.2rem;
  }

  .journey-track {
    padding-left: 1.8rem;
  }

  .journey-entry::before {
    left: -1.62rem;
  }

  .journey-entry.is-stop {
    padding: 1.4rem;
  }

  .journey-entry.is-stop::before {
    left: -2rem;
  }

  .figure-caption {
    display: block;
  }

  .graph-sitebar .brand-mark,
  .graph-sitebar .button .desktop-copy {
    display: none;
  }
}

@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 {
  :root,
  :root[data-theme="dark"] {
    color-scheme: light;
    --ink: #111827;
    --ink-strong: #000000;
    --muted: #4b5563;
    --muted-strong: #263244;
    --paper: #ffffff;
    --paper-2: #ffffff;
    --paper-3: #f2f2f2;
    --line: #c7c7c7;
    --line-strong: #888888;
    --accent: #8a5700;
  }

  .site-status,
  .site-header,
  .actions,
  .site-footer {
    display: none;
  }

  .editorial-section,
  .journey-entry {
    break-inside: avoid;
  }
}

/* Decision Brief service landing */
.service-hero {
  min-height: min(58rem, calc(100svh - 6.75rem));
  display: flex;
  align-items: stretch;
  border-bottom: 1px solid var(--line);
}

.service-hero > .wrap {
  display: flex;
  flex-direction: column;
  padding-block: clamp(2rem, 5vw, 4.5rem) clamp(4rem, 8vw, 7.5rem);
}

.service-hero .issue-line {
  margin-bottom: auto;
}

.service-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 7fr) minmax(19rem, 4fr);
  align-items: end;
  gap: clamp(3rem, 7vw, 7rem);
  padding-top: clamp(4rem, 9vw, 8rem);
}

.service-display {
  max-width: 12ch;
  margin: 0;
  color: var(--ink-strong);
  font-family: var(--serif);
  font-size: clamp(3.1rem, 7.4vw, 7.2rem);
  font-weight: 720;
  letter-spacing: -0.064em;
  line-height: 1.01;
}

:root[data-lang="en"] .service-display {
  max-width: 13ch;
  letter-spacing: -0.07em;
  line-height: 0.93;
}

.service-deck {
  max-width: 43rem;
  margin: clamp(1.8rem, 4vw, 3rem) 0 0;
  color: var(--muted-strong);
  font-size: clamp(1.05rem, 0.98rem + 0.34vw, 1.35rem);
  line-height: 1.72;
  letter-spacing: -0.025em;
}

.hero-decision-card {
  position: relative;
  padding: clamp(1.4rem, 3vw, 2.4rem);
  border: 1px solid var(--line-strong);
  border-top: 0.26rem solid var(--accent);
  background: color-mix(in srgb, var(--paper-2) 94%, transparent);
  box-shadow: var(--shadow);
}

.card-label,
.brief-kicker,
.proof-label,
.view-rank {
  color: var(--accent);
  font-size: 0.67rem;
  font-weight: 820;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.hero-decision-card .contract-list {
  display: block;
  margin: 1.8rem 0;
  padding: 0;
  border-top: 0;
}

.contract-list div {
  display: grid;
  grid-template-columns: 5.5rem minmax(0, 1fr);
  gap: 1rem;
  padding: 1rem 0;
  border-top: 1px solid var(--line);
}

.contract-list div:last-child {
  border-bottom: 1px solid var(--line);
}

.contract-list dt {
  color: var(--muted);
  font-size: 0.72rem;
  font-weight: 760;
  letter-spacing: 0.06em;
}

.contract-list dd {
  margin: 0;
  color: var(--ink-strong);
  font-weight: 680;
  letter-spacing: -0.025em;
}

.contract-note {
  margin: 0;
  color: var(--muted);
  font-size: 0.78rem;
  line-height: 1.62;
}

.outcome-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: clamp(2.2rem, 5vw, 4rem);
  border: 1px solid var(--line);
}

.outcome-card {
  min-height: 21rem;
  padding: clamp(1.4rem, 3vw, 2.4rem);
  border-right: 1px solid var(--line);
  background: var(--paper-2);
}

.outcome-card:last-child {
  border-right: 0;
}

.outcome-card::before {
  display: block;
  width: 100%;
  height: 0.22rem;
  margin-bottom: 5rem;
  background: var(--mint);
  content: "";
}

.outcome-card.is-hold::before {
  background: var(--accent);
}

.outcome-card.is-handoff::before {
  background: var(--blue);
}

.outcome-code {
  color: var(--muted);
  font-size: 0.68rem;
  font-weight: 850;
  letter-spacing: 0.14em;
}

.outcome-card h3,
.dxq-card h3,
.visual-policy-grid h3 {
  margin: 0.75rem 0 0.8rem;
  color: var(--ink-strong);
  font-size: 1.1rem;
  letter-spacing: -0.035em;
}

.outcome-card p,
.dxq-card p,
.visual-policy-grid p {
  margin: 0;
  color: var(--muted);
  font-size: 0.88rem;
  line-height: 1.68;
}

.service-flow {
  display: grid;
  grid-template-columns: repeat(7, minmax(8.2rem, 1fr));
  margin: clamp(2.4rem, 5vw, 4.5rem) 0 0;
  padding: 0;
  border-top: 1px solid var(--line-strong);
  border-bottom: 1px solid var(--line);
  list-style: none;
  overflow-x: auto;
}

.service-flow li {
  min-height: 15rem;
  display: flex;
  flex-direction: column;
  padding: 1rem 1.1rem 1.3rem;
  border-right: 1px solid var(--line);
}

.service-flow li:last-child {
  border-right: 0;
}

.flow-index {
  margin-bottom: auto;
  color: var(--accent);
  font-size: 0.65rem;
  font-weight: 850;
  letter-spacing: 0.12em;
}

.service-flow strong {
  display: block;
  color: var(--ink-strong);
  font-size: 0.9rem;
  letter-spacing: -0.025em;
  line-height: 1.38;
}

.service-flow small {
  display: block;
  margin-top: 0.55rem;
  color: var(--muted);
  font-size: 0.7rem;
  line-height: 1.45;
}

.section-heading-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: end;
  gap: 2rem;
}

.explain-button {
  align-self: end;
  white-space: nowrap;
  cursor: pointer;
}

.dxq-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  margin-top: clamp(2.5rem, 5vw, 4rem);
  background: var(--line);
  border: 1px solid var(--line);
}

.dxq-card {
  min-height: 17rem;
  display: grid;
  grid-template-columns: 4rem minmax(0, 1fr);
  gap: 1rem;
  padding: clamp(1.3rem, 2.5vw, 2rem);
  background: var(--paper-2);
}

.dxq-code {
  color: var(--ink-strong);
  font-family: var(--serif);
  font-size: 3.6rem;
  font-weight: 760;
  letter-spacing: -0.08em;
  line-height: 1;
}

.plain-boundary {
  margin: 1.25rem 0 0;
  padding: 1rem 1.2rem;
  border-left: 0.22rem solid var(--accent);
  background: color-mix(in srgb, var(--accent) 7%, var(--paper-2));
  color: var(--muted-strong);
  font-size: 0.82rem;
}

.brief-shell {
  margin-top: clamp(2.5rem, 5vw, 4.5rem);
  border: 1px solid var(--line-strong);
  background: var(--paper-2);
  box-shadow: var(--shadow);
}

.brief-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 2rem;
  padding: clamp(1.5rem, 3vw, 2.4rem);
  border-bottom: 1px solid var(--line-strong);
}

.brief-header h3 {
  max-width: 46rem;
  margin: 0.8rem 0 0;
  color: var(--ink-strong);
  font-family: var(--serif);
  font-size: clamp(1.35rem, 1.1rem + 1vw, 2.15rem);
  font-weight: 680;
  letter-spacing: -0.045em;
  line-height: 1.3;
}

.brief-status {
  flex: 0 0 auto;
  padding: 0.48rem 0.7rem;
  border: 1px solid color-mix(in srgb, var(--blue) 55%, var(--line));
  border-radius: 999px;
  background: color-mix(in srgb, var(--blue) 11%, transparent);
  color: var(--blue);
  font-size: 0.68rem;
  font-weight: 820;
  letter-spacing: 0.06em;
}

.brief-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin: 0;
}

.brief-grid div {
  min-height: 10.5rem;
  padding: 1.45rem;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.brief-grid div:nth-child(3n) {
  border-right: 0;
}

.brief-grid div:nth-last-child(-n + 3) {
  border-bottom: 0;
}

.brief-grid dt {
  margin-bottom: 1.6rem;
  color: var(--muted);
  font-size: 0.68rem;
  font-weight: 780;
  letter-spacing: 0.08em;
}

.brief-grid dd {
  margin: 0;
  color: var(--ink-strong);
  font-size: 0.88rem;
  line-height: 1.65;
}

.brief-footer {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.9rem 1.45rem;
  border-top: 1px solid var(--line-strong);
  color: var(--muted);
  font-size: 0.7rem;
}

.visual-policy-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin-top: clamp(2.4rem, 5vw, 4rem);
  border-top: 1px solid var(--line-strong);
}

.visual-policy-grid article {
  min-height: 17rem;
  padding: 1.5rem 1.3rem;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.visual-policy-grid article:first-child {
  border-left: 1px solid var(--line);
}

.visual-policy-grid .is-optional {
  background: repeating-linear-gradient(
    -45deg,
    transparent,
    transparent 8px,
    color-mix(in srgb, var(--line) 20%, transparent) 8px,
    color-mix(in srgb, var(--line) 20%, transparent) 9px
  );
}

.view-rank {
  display: block;
  margin-bottom: 4.5rem;
}

.method-section {
  background: color-mix(in srgb, var(--paper-2) 74%, transparent);
}

.method-metrics {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  margin-top: clamp(2.5rem, 5vw, 4rem);
  border-top: 1px solid var(--line-strong);
  border-bottom: 1px solid var(--line);
}

.method-metrics > div {
  min-height: 10.5rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 1.25rem;
  border-right: 1px solid var(--line);
}

.method-metrics > div:last-child {
  border-right: 0;
}

.method-metrics strong {
  color: var(--ink-strong);
  font-family: var(--serif);
  font-size: clamp(1.8rem, 3vw, 3rem);
  font-weight: 700;
  letter-spacing: -0.055em;
}

.method-metrics span {
  color: var(--muted);
  font-size: 0.72rem;
  line-height: 1.45;
}

.proof-boundary {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin-top: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.proof-boundary > div {
  min-height: 12rem;
  padding: 1.5rem;
  background: var(--paper);
}

.proof-label {
  color: var(--mint);
}

.proof-label.is-open {
  color: var(--accent);
}

.proof-boundary p {
  margin: 2rem 0 0;
  color: var(--muted-strong);
  font-size: 0.84rem;
}

.site-dialog {
  width: min(calc(100% - 2rem), 47rem);
  max-height: min(90vh, 52rem);
  margin: auto;
  padding: 0;
  border: 1px solid var(--line-strong);
  background: var(--paper-2);
  color: var(--ink);
  box-shadow: 0 32px 120px rgba(0, 0, 0, 0.58);
}

.site-dialog::backdrop {
  background: rgba(2, 5, 10, 0.76);
  backdrop-filter: blur(7px);
}

.dialog-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 2rem;
  padding: 1.5rem 1.7rem;
  border-bottom: 1px solid var(--line);
}

.dialog-header h2 {
  margin: 0;
  color: var(--ink-strong);
  font-family: var(--serif);
  font-size: clamp(1.45rem, 3vw, 2.2rem);
  letter-spacing: -0.045em;
  line-height: 1.25;
}

.dialog-close {
  width: 2.6rem;
  height: 2.6rem;
  flex: 0 0 auto;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: transparent;
  color: var(--ink-strong);
  font-size: 1.35rem;
  cursor: pointer;
}

.dialog-close:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.dialog-body {
  padding: 1.5rem 1.7rem 1.8rem;
}

.dialog-body > p:first-child {
  margin-top: 0;
  color: var(--muted-strong);
}

.dialog-dxq {
  margin: 1.5rem 0;
  border-top: 1px solid var(--line);
}

.dialog-dxq div {
  display: grid;
  grid-template-columns: 12rem minmax(0, 1fr);
  gap: 1.5rem;
  padding: 1.1rem 0;
  border-bottom: 1px solid var(--line);
}

.dialog-dxq dt {
  color: var(--ink-strong);
  font-weight: 760;
}

.dialog-dxq dd {
  margin: 0;
  color: var(--muted);
  font-size: 0.85rem;
}

.dialog-warning {
  margin: 0;
  padding: 1rem;
  border-left: 0.22rem solid var(--accent);
  background: color-mix(in srgb, var(--accent) 8%, transparent);
  color: var(--muted-strong);
  font-size: 0.82rem;
}

@media (max-width: 64rem) {
  .service-hero-grid {
    grid-template-columns: 1fr;
  }

  .hero-decision-card {
    max-width: 42rem;
  }

  .outcome-grid,
  .dxq-grid {
    grid-template-columns: 1fr;
  }

  .outcome-card {
    min-height: 0;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .outcome-card:last-child {
    border-bottom: 0;
  }

  .outcome-card::before {
    margin-bottom: 2.4rem;
  }

  .dxq-card {
    min-height: 0;
  }

  .brief-grid,
  .visual-policy-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .brief-grid div:nth-child(3n) {
    border-right: 1px solid var(--line);
  }

  .brief-grid div:nth-child(2n) {
    border-right: 0;
  }

  .brief-grid div:nth-last-child(-n + 3) {
    border-bottom: 1px solid var(--line);
  }

  .brief-grid div:nth-last-child(-n + 2) {
    border-bottom: 0;
  }

  .visual-policy-grid article:nth-child(2n) {
    border-right: 1px solid var(--line);
  }

  .visual-policy-grid article:nth-child(3) {
    border-left: 1px solid var(--line);
  }

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

  .method-metrics > div:nth-child(3) {
    border-right: 0;
  }

  .method-metrics > div:nth-child(-n + 3) {
    border-bottom: 1px solid var(--line);
  }
}

@media (max-width: 48rem) {
  .service-hero {
    min-height: auto;
  }

  .service-hero .issue-line {
    margin-bottom: 0;
  }

  .service-display {
    font-size: clamp(2.8rem, 13vw, 5rem);
  }

  .section-heading-row,
  .brief-header,
  .proof-boundary {
    grid-template-columns: 1fr;
  }

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

  .explain-button {
    justify-self: start;
  }

  .brief-header {
    display: grid;
  }

  .brief-status {
    justify-self: start;
  }

  .visual-policy-grid,
  .brief-grid,
  .method-metrics {
    grid-template-columns: 1fr;
  }

  .brief-grid div,
  .brief-grid div:nth-child(2n),
  .brief-grid div:nth-child(3n),
  .brief-grid div:nth-last-child(-n + 2),
  .brief-grid div:nth-last-child(-n + 3) {
    min-height: 0;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .brief-grid div:last-child {
    border-bottom: 0;
  }

  .brief-grid dt {
    margin-bottom: 0.8rem;
  }

  .brief-footer {
    flex-direction: column;
  }

  .visual-policy-grid article,
  .visual-policy-grid article:first-child,
  .visual-policy-grid article:nth-child(3) {
    min-height: 0;
    border-right: 1px solid var(--line);
    border-left: 1px solid var(--line);
  }

  .view-rank {
    margin-bottom: 2.2rem;
  }

  .method-metrics > div,
  .method-metrics > div:nth-child(3) {
    min-height: 7.8rem;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .method-metrics > div:last-child {
    border-bottom: 0;
  }

  .dialog-dxq div {
    grid-template-columns: 1fr;
    gap: 0.4rem;
  }
}

@media (max-width: 38rem) {
  .decision-landing .nav-links {
    display: none;
  }

  .decision-landing .brand {
    margin-right: auto;
  }

  .service-hero > .wrap {
    padding-top: 1.5rem;
  }

  .service-hero-grid {
    gap: 2.5rem;
    padding-top: 4rem;
  }

  .service-display {
    font-size: clamp(2.65rem, 13.5vw, 4.2rem);
    letter-spacing: -0.055em;
  }

  .contract-list div {
    grid-template-columns: 1fr;
    gap: 0.25rem;
  }

  .dxq-card {
    grid-template-columns: 3rem minmax(0, 1fr);
  }

  .dxq-code {
    font-size: 2.8rem;
  }

  .dialog-header,
  .dialog-body {
    padding-inline: 1.1rem;
  }
}

@media print {
  .site-dialog {
    display: none;
  }

  .service-hero {
    min-height: auto;
  }
}