/* Hallmark · genre: modern-minimal · tone: calm, evidence-first · theme: Cobalt · macrostructure: Index-First acceptance rail with focused state work surface · enrichment: none · nav: N5 · footer: Ft5 · pre-emit critique: P5 H5 E5 S5 R5 V4 · contrast: pass (40–41) · slop: pass (5, 26, 34, 36, 42–55) · honest: pass (46) · chrome: pass (47) · tokens: pass (48) · responsive: pass (49–51, 54) · icons: pass (30) · mobile: pass (34, 49–57) */
:root {
  --demo-anchor-offset: var(--space-3xl);
}

* {
  box-sizing: border-box;
}

html {
  color: var(--color-ink);
  background: var(--color-paper);
  font-family: var(--font-body);
  line-height: 1.6;
  scroll-behavior: smooth;
  word-break: keep-all;
  overflow-x: clip;
}

body {
  margin: 0;
  overflow-x: clip;
}

main > section[id] {
  scroll-margin-block-start: var(--demo-anchor-offset);
}

a {
  color: inherit;
}

img,
svg {
  max-width: 100%;
  height: auto;
}

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

.skip-link {
  position: fixed;
  inset-block-start: var(--space-sm);
  inset-inline-start: var(--space-sm);
  z-index: var(--z-tooltip);
  transform: translateY(-150%);
  padding: var(--space-xs) var(--space-sm);
  background: var(--color-graphite);
  color: var(--color-graphite-text);
}

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

.demo-nav,
.demo-footer,
.demo-hero,
.why,
.story,
.representative-results,
.candidate-review,
.boundary,
.seal,
.final-cta {
  width: min(100% - (var(--page-gutter) * 2), var(--page-max));
  margin-inline: auto;
}

.demo-nav {
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  min-height: 4.5rem;
  padding-block: var(--space-xs);
  border-bottom: var(--line) solid var(--color-rule-2);
  background: color-mix(in oklch, var(--color-paper) 92%, transparent);
  backdrop-filter: blur(12px);
}

.demo-nav__brand img {
  display: block;
  width: 10.5rem;
  max-width: none;
  transform: translateX(calc(-1 * var(--space-2xl)));
}

.demo-nav__brand {
  display: flex;
  flex: 0 0 auto;
  align-items: center;
  width: 9rem;
  height: 3rem;
  overflow: hidden;
}

.demo-nav__links {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: var(--text-sm);
}

.demo-nav__links a {
  min-height: 2.25rem;
  display: inline-flex;
  align-items: center;
  padding-inline: var(--space-xs);
  text-decoration: none;
  white-space: nowrap;
}

.demo-nav__cta,
.button {
  min-height: var(--control-height);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-xs) var(--space-md);
  border-radius: var(--radius-sm);
  border: var(--line) solid var(--color-accent);
  background: var(--color-accent);
  color: var(--color-accent-ink);
  font-weight: 700;
  text-decoration: none;
}

.demo-nav__cta,
.button,
.scene-controls button {
  transition: background-color var(--dur-short) var(--ease-out),
    border-color var(--dur-short) var(--ease-out),
    color var(--dur-short) var(--ease-out),
    transform 100ms var(--ease-out);
}

@media (hover: hover) and (pointer: fine) {
  .demo-nav__cta:hover,
  .button:hover {
    border-color: var(--color-ink-2);
  }

  .scene-controls button:hover:not([aria-selected="true"]) {
    background: var(--color-paper-2);
  }
}

.demo-nav__cta:active,
.button:active,
.scene-controls button:active {
  transform: translateY(1px);
}

.demo-nav__cta:disabled,
.button:disabled,
.scene-controls button:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

.text-link {
  font-weight: 700;
  color: var(--color-accent);
  text-underline-offset: 0.18em;
}

.button,
.text-link {
  white-space: nowrap;
}

.demo-hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-xl);
  padding-block: var(--space-2xl);
}

.demo-hero__copy {
  max-width: var(--measure);
}

.eyebrow,
.label {
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0;
}

.eyebrow {
  margin: 0 0 var(--space-xs);
  color: var(--color-accent);
}

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

h1,
h2,
h3 {
  font-family: var(--font-display);
  line-height: 1.16;
  text-wrap: balance;
  min-width: 0;
  overflow-wrap: anywhere;
}

h1 {
  margin-block-end: var(--space-md);
  font-size: var(--text-display);
}

h2 {
  margin-block-end: var(--space-sm);
  font-size: clamp(1.8rem, 5vw, var(--text-2xl));
}

h3 {
  margin-block-end: var(--space-xs);
  font-size: clamp(1.25rem, 3vw, var(--text-lg));
}

.lead {
  font-size: var(--text-md);
  color: var(--color-ink-2);
}

.demo-disclosure {
  padding: var(--space-md);
  border: var(--line) solid var(--color-rule);
  background: var(--color-paper-2);
}

.demo-disclosure strong {
  color: var(--color-accent);
}

.demo-outcome {
  display: grid;
  gap: var(--space-2xs);
  margin-block-start: var(--space-md);
  padding: var(--space-md);
  border-inline-start: 0.2rem solid var(--color-accent);
  background: var(--color-paper-2);
}

.demo-outcome .label,
.demo-outcome strong,
.demo-outcome span {
  margin: 0;
}

.demo-outcome .label {
  justify-self: start;
}

.demo-outcome strong {
  font-family: var(--font-display);
  font-size: var(--text-lg);
}

.demo-outcome span {
  color: var(--color-muted);
}

.hero-actions,
.final-cta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  align-items: center;
}

.hero-actions {
  margin-block-start: var(--space-xl);
}

.hero-map {
  margin: 0;
  padding: var(--space-md);
  border: var(--line) solid var(--color-rule);
  background: linear-gradient(140deg, var(--color-paper-2), var(--color-paper));
}

.hero-map figcaption {
  margin-block-end: var(--space-sm);
  color: var(--color-muted);
  font-size: var(--text-sm);
}

.hero-map svg {
  display: block;
}

.hero-map rect,
.hero-map circle {
  fill: var(--color-paper);
  stroke: var(--color-rule);
  stroke-width: 2;
}

.hero-map path {
  fill: none;
  stroke: var(--color-accent);
  stroke-width: 4;
  stroke-linecap: round;
}

.hero-map text {
  fill: var(--color-ink);
  font-weight: 700;
}

.human-node circle {
  fill: var(--color-graphite);
  stroke: var(--color-accent);
}

.human-node text {
  fill: var(--color-graphite-text);
  text-anchor: middle;
  font-size: 1rem;
}

.why,
.story,
.candidate-review,
.boundary,
.seal,
.final-cta {
  padding-block: var(--space-2xl);
  border-top: var(--line) solid var(--color-rule-2);
}

.section-head {
  max-width: var(--measure);
  margin-block-end: var(--space-xl);
}

.section-head > p:not(.eyebrow) {
  max-inline-size: var(--measure-narrow);
}

.seal-list {
  display: grid;
  gap: var(--space-md);
  padding: 0;
  list-style: none;
}

.seal-list li,
.problem-strip article,
.state-grid article,
.authority-grid article {
  padding: var(--space-md);
  border: var(--line) solid var(--color-rule);
  border-radius: var(--radius-sm);
  background: var(--color-paper-2);
}

.problem-strip,
.state-grid,
.authority-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-md);
}

.playback {
  display: grid;
  gap: var(--space-lg);
}

.scene-controls {
  display: none;
  gap: var(--space-xs);
  overflow-x: auto;
  padding-block-end: var(--space-xs);
  scrollbar-color: var(--color-rule) transparent;
  scrollbar-width: thin;
}

.playback.is-enhanced .scene-controls {
  display: flex;
}

.scene-controls button {
  flex: 0 0 auto;
  min-height: 2.75rem;
  min-width: 4rem;
  padding-inline: var(--space-sm);
  border: var(--line) solid var(--color-rule);
  border-radius: var(--radius-sm);
  background: var(--color-paper);
  color: var(--color-ink);
  font: inherit;
  font-size: var(--text-sm);
  font-weight: 700;
  cursor: pointer;
  text-align: center;
  white-space: nowrap;
}

.scene-controls button[aria-selected="true"] {
  border-color: var(--color-accent);
  background: var(--color-graphite);
  color: var(--color-graphite-text);
}

.scene-stage {
  position: relative;
  min-height: 24rem;
  padding: var(--space-md);
  border: var(--line) solid var(--color-rule);
  background: var(--color-paper-2);
  perspective: 900px;
}

.rail {
  position: absolute;
  inset-block: var(--space-md);
  width: calc(50% - var(--space-lg));
  border: var(--line) solid var(--color-rule);
  background: var(--color-paper);
  transform: skewY(-4deg);
}

.rail--left {
  inset-inline-start: var(--space-md);
}

.rail--right {
  inset-inline-end: var(--space-md);
}

.rail span {
  display: inline-block;
  margin: var(--space-sm);
  transform: skewY(4deg);
  color: var(--color-muted);
  font-weight: 700;
}

.scene-card {
  position: absolute;
  width: min(13rem, 38vw);
  min-height: 4.25rem;
  display: grid;
  place-items: center;
  padding: var(--space-sm);
  border: var(--line) solid var(--color-rule);
  border-radius: var(--radius-sm);
  background: var(--color-paper);
  box-shadow: var(--shadow-whisper);
  font-weight: 700;
  text-align: center;
  transform: translateZ(0) rotateX(0deg);
  transition: transform var(--dur-short) var(--ease-out), border-color var(--dur-short) var(--ease-out);
}

.scene-card--request { inset-block-start: 4.5rem; inset-inline-start: 8%; }
.scene-card--criteria { inset-block-start: 10rem; inset-inline-start: 14%; }
.scene-card--baseline { inset-block-start: 15.5rem; inset-inline-start: 20%; }
.scene-card--evidence { inset-block-start: 4.5rem; inset-inline-end: 19%; }
.scene-card--candidate { inset-block-start: 10rem; inset-inline-end: 13%; }
.scene-card--decision { inset-block-start: 15.5rem; inset-inline-end: 7%; }
.scene-card--seal { inset-block-end: 1.5rem; inset-inline: 50%; translate: -50% 0; }

.playback[data-active-scene="1"] .scene-card--request,
.playback[data-active-scene="2"] .scene-card--criteria,
.playback[data-active-scene="3"] .scene-card--baseline,
.playback[data-active-scene="4"] .scene-card--evidence,
.playback[data-active-scene="5"] .scene-card--candidate,
.playback[data-active-scene="6"] .scene-card--decision,
.playback[data-active-scene="7"] .scene-card--evidence,
.playback[data-active-scene="8"] .scene-card--seal,
.playback[data-active-scene="9"] .scene-card--seal {
  border-color: var(--color-accent);
  transform: translateY(-0.35rem) rotateX(8deg);
}

.scene-panel {
  min-width: 0;
  padding: var(--space-lg);
  border: var(--line) solid var(--color-rule);
  background: var(--color-paper);
}

.evidence-row {
  margin-block-start: var(--space-lg);
  padding: var(--space-md);
  border: var(--line) solid var(--color-rule);
  border-radius: var(--radius-sm);
  background: var(--color-paper-2);
}

.evidence-row__header {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: flex-start;
  gap: var(--space-md);
}

.evidence-row__header .label {
  margin: 0;
}

.evidence-row__status {
  flex: 0 0 auto;
  padding: 0.1rem var(--space-xs);
  border: var(--line) solid currentColor;
  border-radius: var(--radius-xs);
  color: var(--color-muted);
  font-size: var(--text-sm);
  font-weight: 700;
  white-space: nowrap;
}

.evidence-row[data-evidence-state="baseline"] {
  border-color: var(--color-success);
}

.representative-results__list {
  display: grid;
  gap: var(--space-md);
}

.result-item {
  border: var(--line) solid var(--color-rule);
  border-radius: var(--radius-sm);
  background: var(--color-paper-2);
}

.result-item[data-result-state="insufficient"] {
  border-color: var(--color-warning);
}

.result-item[data-result-state="not-met"] {
  border-color: var(--color-error);
}

.result-item > summary {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: var(--space-sm);
  min-height: var(--control-height);
  padding: var(--space-sm) var(--space-md);
  cursor: pointer;
  font-weight: 700;
  overflow-wrap: anywhere;
}

.result-item > summary::marker {
  color: var(--color-accent);
}

.result-item > summary:focus-visible,
.scene-details-fallback > summary:focus-visible {
  outline: 0.2rem solid var(--color-focus);
  outline-offset: 0.15rem;
}

.result-item__id {
  color: var(--color-muted);
  font-size: var(--text-sm);
}

.result-item__status {
  padding: 0.1rem var(--space-xs);
  border: var(--line) solid currentColor;
  border-radius: var(--radius-xs);
  color: var(--color-ink-2);
  font-size: var(--text-sm);
  text-align: center;
}

.result-item__facts {
  display: grid;
  gap: var(--space-sm);
  margin: 0;
  padding: var(--space-md);
  border-top: var(--line) solid var(--color-rule-2);
}

.result-item__facts > div {
  display: grid;
  grid-template-columns: minmax(7rem, 0.28fr) minmax(0, 1fr);
  gap: var(--space-md);
}

.result-item__facts dt {
  color: var(--color-muted);
  font-size: var(--text-sm);
  font-weight: 700;
}

.result-item__facts dd {
  margin: 0;
  color: var(--color-ink-2);
  overflow-wrap: anywhere;
}

.evidence-row[data-evidence-state="summary"] {
  border-color: var(--color-accent);
}

.evidence-row[data-evidence-state="insufficient"] {
  border-color: var(--color-warning);
  background: var(--color-warning-soft);
}

.evidence-row[data-evidence-state="human"] {
  border-color: var(--color-accent);
}

.evidence-row__facts {
  display: grid;
  gap: var(--space-sm);
  margin: var(--space-md) 0 0;
}

.evidence-row__facts > div {
  display: grid;
  grid-template-columns: minmax(6rem, 0.28fr) minmax(0, 1fr);
  gap: var(--space-md);
}

.evidence-row__facts dt {
  color: var(--color-muted);
  font-size: var(--text-sm);
  font-weight: 700;
}

.evidence-row__facts dd {
  margin: 0;
  color: var(--color-ink-2);
  overflow-wrap: anywhere;
}

.evidence-row__note {
  margin: var(--space-md) 0 0;
  color: var(--color-ink-2);
  font-weight: 700;
}

.scene-details-fallback {
  border-top: var(--line) solid var(--color-rule-2);
}

.scene-details-fallback > summary {
  display: flex;
  align-items: center;
  min-height: var(--control-height);
  padding-block: var(--space-xs);
  color: var(--color-accent);
  cursor: pointer;
  font-weight: 700;
}

.noscript-note {
  margin-block: 0 var(--space-md);
  color: var(--color-muted);
  font-size: var(--text-sm);
}

.playback.is-enhanced .scene-details-fallback {
  display: none;
}

.scene-detail-list {
  display: grid;
  gap: var(--space-md);
  margin: 0;
  padding: 0;
  list-style: none;
}

.scene-detail-list > li {
  margin: 0;
}

.scene-detail-list article {
  padding: var(--space-lg);
  border: var(--line) solid var(--color-rule);
  border-radius: var(--radius-sm);
  background: var(--color-paper-2);
}

.scene-detail-list article h3 {
  margin-block-end: var(--space-md);
}

.scene-detail-list__facts {
  display: grid;
  gap: var(--space-xs);
  margin: 0;
}

.scene-detail-list__facts > div {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: var(--space-2xs);
}

.scene-detail-list__facts dt {
  flex: 0 0 auto;
  color: var(--color-ink);
  font-size: var(--text-sm);
  font-weight: 700;
}

.scene-detail-list__facts dt strong {
  color: var(--color-ink);
  font-weight: 700;
}

.scene-detail-list__facts dd {
  flex: 1 1 12rem;
  min-width: 0;
  margin: 0;
  color: var(--color-ink-2);
}

.label {
  display: inline-flex;
  align-items: center;
  margin-inline-end: var(--space-xs);
  padding: 0.1rem var(--space-xs);
  border-radius: var(--radius-xs);
  border: var(--line) solid currentColor;
}

.label--candidate {
  color: var(--color-accent);
}

.label--human {
  color: var(--color-success);
}

.final-cta {
  justify-content: space-between;
  background: var(--color-graphite);
  color: var(--color-graphite-text);
  padding-inline: var(--space-lg);
}

.final-cta p {
  color: var(--color-graphite-muted);
}

.demo-footer {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-md);
  padding-block: var(--space-lg);
  color: var(--color-muted);
  border-top: var(--line) solid var(--color-rule-2);
}

.demo-footer a {
  white-space: nowrap;
}

@media (min-width: 40rem) {
  .problem-strip,
  .state-grid,
  .authority-grid,
  .seal-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 60rem) {
  .demo-hero {
    grid-template-columns: minmax(0, 0.9fr) minmax(26rem, 1fr);
    align-items: center;
  }

  .problem-strip,
  .authority-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

  h1 {
    font-size: var(--text-display-tablet);
  }
}

@media (max-width: 45rem) {
  :root {
    --demo-anchor-offset: var(--space-4xl);
  }

  h1,
  h2,
  h3 {
    text-wrap: pretty;
  }

  .demo-nav {
    align-items: flex-start;
    flex-direction: column;
  }

  .final-cta {
    padding-inline: var(--space-md);
  }

  .demo-nav__links {
    width: 100%;
    overflow-x: auto;
  }

  .scene-stage {
    display: grid;
    gap: var(--space-sm);
    min-height: 0;
  }

  .rail {
    position: static;
    width: 100%;
    height: auto;
    min-height: 0;
    margin: 0;
    border: 0;
    background: transparent;
    transform: none;
  }

  .scene-card {
    position: static;
    width: 100%;
    margin: 0;
  }

  .rail span {
    margin: 0;
    transform: none;
  }

  .rail--left {
    order: 0;
  }

  .scene-card--request,
  .scene-card--criteria,
  .scene-card--baseline {
    order: 1;
  }

  .rail--right {
    order: 2;
  }

  .scene-card--evidence,
  .scene-card--candidate,
  .scene-card--decision {
    order: 3;
  }

  .scene-card--seal {
    order: 4;
    inset: auto;
    translate: none;
  }

  .evidence-row__facts > div {
    grid-template-columns: 1fr;
    gap: var(--space-2xs);
  }

  .result-item > summary {
    grid-template-columns: auto minmax(0, 1fr);
  }

  .result-item__status {
    grid-column: 2;
    justify-self: start;
  }

  .result-item__facts > div {
    grid-template-columns: 1fr;
    gap: var(--space-2xs);
  }
}

@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;
  }

  .scene-card {
    transform: none !important;
  }
}

/* 어두운 면에서의 포커스 링 — 기본 --color-focus 는 graphite 위에서 1.35:1 로
   사실상 보이지 않는다(WCAG 1.4.11 은 3:1 요구). 주 CTA 가 graphite 밴드 안에 있다. */
.final-cta :focus-visible {
  outline-color: var(--color-paper);
}

/* .demo-nav__links a (0,1,1) 가 .demo-nav__cta (0,1,0) 를 이겨
   --control-height 가 조용히 버려지고 있었다. 특이도를 맞춘다. */
.demo-nav__links a.demo-nav__cta {
  min-height: var(--control-height);
}

.seal-list strong,
.seal-list span {
  display: block;
}

.seal-list span {
  color: var(--color-muted);
}

/* 탭: 44px 터치 타깃, 명시적 패딩(UA 기본 1px 6px 상속 제거),
   비활성 테두리를 3:1 이상으로. */
.scene-controls button {
  min-height: 2.75rem;
  padding-block: var(--space-2xs);
  padding-inline: var(--space-sm);
  border-color: var(--color-neutral);
}

/* 네 candidate 상태를 구분한다. 색은 항상 상태 이름과 함께만 쓰인다
   (색 단독으로 의미를 전달하지 않는다). */
.state-grid article h3::before {
  content: "";
  display: inline-block;
  inline-size: 0.5rem;
  block-size: 0.5rem;
  margin-inline-end: var(--space-xs);
  border-radius: 50%;
  background: var(--state-dot, var(--color-neutral));
}

.state-grid article[data-state="met"] { --state-dot: var(--color-success); }
.state-grid article[data-state="not-met"] { --state-dot: var(--color-error); }
.state-grid article[data-state="insufficient"] { --state-dot: var(--color-warning); }
.state-grid article[data-state="human"] { --state-dot: var(--color-accent); }