:root {
  color-scheme: light dark;
  --canvas: #f4f6f8;
  --surface: #ffffff;
  --quiet: #edf1f4;
  --ink: #172333;
  --muted: #536273;
  --border: #d9e0e7;
  --primary: #173b58;
  --on-primary: #ffffff;
  --boundary: #b5801f;
  --boundary-accent: var(--boundary);
  --danger: #b4232b;
  --focus: #b5801f;
  --hud-bg: var(--canvas);
  --hud-surface: #ffffff;
  --hud-border: var(--border);
  --hud-text: #172333;
  --hud-muted: #536273;
  --hud-conduit: #cdd5df;
  --hud-blue: #0969da;
  --hud-gold: #b5801f;
  --hud-green: #1a7f37;
  --hud-red: #cf222e;
  --hud-purple: #8250df;
  --shell: 1440px;
  --reading: 760px;
  --pad: clamp(20px, 4vw, 52px);
  --sans: "Helvetica Neue", Arial, "Segoe UI", sans-serif;
  --mono: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
}

:root[data-theme="dark"] {
  --canvas: #0d141b;
  --surface: #131d26;
  --quiet: #1b2833;
  --ink: #f0f4f7;
  --muted: #aab6c1;
  --border: #34424f;
  --primary: #88b8db;
  --on-primary: #0d2231;
  --boundary: #d8b45e;
  --boundary-accent: var(--boundary);
  --danger: #ffb3b7;
  --focus: #d8b45e;
  --hud-bg: var(--canvas);
  --hud-surface: #171d28;
  --hud-border: var(--border);
  --hud-text: #f0f4f7;
  --hud-muted: #8b949e;
  --hud-conduit: #232b38;
  --hud-blue: #58a6ff;
  --hud-gold: #c8a165;
  --hud-green: #00e676;
  --hud-red: #ff3b30;
  --hud-purple: #bf5af2;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    --canvas: #0d141b;
    --surface: #131d26;
    --quiet: #1b2833;
    --ink: #f0f4f7;
    --muted: #aab6c1;
    --border: #34424f;
    --primary: #88b8db;
    --on-primary: #0d2231;
    --boundary: #d8b45e;
    --danger: #ffb3b7;
    --focus: #d8b45e;
    --hud-bg: var(--canvas);
    --hud-surface: #171d28;
    --hud-border: var(--border);
    --hud-text: #f0f4f7;
    --hud-muted: #8b949e;
    --hud-conduit: #232b38;
    --hud-blue: #58a6ff;
    --hud-gold: #c8a165;
    --hud-green: #00e676;
    --hud-red: #ff3b30;
    --hud-purple: #bf5af2;
  }
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 88px; }
body {
  margin: 0;
  background: var(--canvas);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.6;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
button { color: inherit; font: inherit; }
img, svg { display: block; max-width: 100%; }
h1, h2, h3, p { margin-top: 0; }
code, pre, .mono { font-family: var(--mono); font-variant-numeric: tabular-nums; }
[hidden] { display: none !important; }

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

.skip-link {
  position: fixed;
  z-index: 100;
  top: 10px;
  left: 10px;
  padding: 10px 14px;
  transform: translateY(-160%);
  border: 1px solid var(--ink);
  background: var(--surface);
  color: var(--ink);
}
.skip-link:focus { transform: translateY(0); }

.shell { width: min(var(--shell), 100%); margin-inline: auto; padding-inline: var(--pad); }

.site-header {
  position: sticky;
  z-index: 30;
  top: 0;
  border-bottom: 1px solid var(--border);
  background: var(--canvas);
}
.nav-shell {
  width: min(var(--shell), 100%);
  min-height: 72px;
  margin-inline: auto;
  padding-inline: var(--pad);
  display: flex;
  align-items: center;
  gap: 32px;
}
.wordmark {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--ink);
}
.wordmark .geumjul-logo {
  flex-shrink: 0;
  color: var(--boundary);
  transition: transform 160ms ease, color 160ms ease;
}
.wordmark:hover .geumjul-logo {
  transform: scale(1.08);
}
.site-nav { margin-left: auto; display: flex; align-items: center; gap: 2px; }
.site-nav a {
  min-height: 44px;
  padding: 0 13px;
  display: inline-flex;
  align-items: center;
  border-bottom: 2px solid transparent;
  color: var(--muted);
  font-size: 14px;
  font-weight: 500;
}
.site-nav a:hover, .site-nav a[aria-current="page"] { border-bottom-color: var(--boundary); color: var(--ink); }
.site-nav .release-link { margin-left: 10px; border: 1px solid var(--border); color: var(--ink); }
.nav-actions { margin-left: auto; display: flex; align-items: center; gap: 10px; }
.github-nav-btn {
  min-height: 44px;
  padding: 0 14px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--ink);
  font-size: 13px;
  font-weight: 600;
  transition: border-color 150ms ease, color 150ms ease;
}
.github-nav-btn:hover {
  border-color: var(--boundary);
  color: var(--boundary);
}
.github-icon {
  flex-shrink: 0;
}
.theme-toggle, .menu-toggle {
  min-width: 44px;
  min-height: 44px;
  padding: 0 10px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: 1px solid var(--border);
  border-radius: 0;
  background: transparent;
  cursor: pointer;
  font-size: 12px;
}
.theme-toggle i { width: 12px; height: 12px; border: 2px solid var(--boundary); border-radius: 50%; box-shadow: inset 4px 0 0 var(--boundary); }
.menu-toggle { display: none; font-size: 17px; }

/* Korean Sacred Boundary - Geumjul Heritage Section */
.heritage-section {
  position: relative;
  overflow: hidden;
  width: 100%;
  margin-bottom: 24px;
  padding-block: clamp(48px, 6vw, 84px);
  border-bottom: 1px solid var(--border);
}
.heritage-backdrop {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  overflow: hidden;
  pointer-events: none;
}
.heritage-bg-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  opacity: 0.12;
}
:root[data-theme="dark"] .heritage-bg-img {
  opacity: 0.20;
}
.heritage-content-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.25fr 0.85fr;
  gap: clamp(24px, 4vw, 56px);
  align-items: center;
}
@media (max-width: 900px) {
  .heritage-content-grid {
    grid-template-columns: 1fr;
  }
}
.heritage-text-block {
  display: flex;
  flex-direction: column;
}
#heritage-title {
  margin: 0 0 18px 0;
  font-size: clamp(30px, 3.4vw, 46px);
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--ink);
}
.heritage-definition {
  margin: 0 0 16px 0;
  font-size: clamp(16px, 1.25vw, 19px);
  line-height: 1.75;
  color: var(--ink);
  word-break: keep-all;
}
.heritage-etymology-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin: 0 0 18px 0;
}
@media (max-width: 600px) {
  .heritage-etymology-grid {
    grid-template-columns: 1fr;
  }
}
.etymology-box {
  padding: 12px 14px;
  background: var(--quiet);
  border: 1px solid var(--border);
  border-left: 3px solid var(--boundary);
}
.etymology-label {
  display: block;
  font: 700 11px/1.2 var(--mono);
  color: var(--boundary);
  letter-spacing: 0.08em;
  margin-bottom: 6px;
}
.etymology-box p {
  margin: 0;
  font-size: 13px;
  line-height: 1.55;
  color: var(--ink);
}
.heritage-conduct {
  margin: 0 0 18px 0;
  font-size: clamp(14px, 1.1vw, 16px);
  line-height: 1.7;
  color: var(--ink);
  word-break: keep-all;
}
.heritage-examples {
  margin: 0 0 20px 0;
  font-size: clamp(14px, 1.05vw, 16px);
  line-height: 1.7;
  color: var(--muted);
  word-break: keep-all;
  padding-left: 16px;
  border-left: 3px solid var(--boundary);
}
.heritage-sub-quote {
  font-size: 13px;
  font-style: italic;
  color: var(--muted);
  line-height: 1.5;
}
.heritage-actions {
  margin-top: 24px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
}
.github-hero-btn {
  min-height: 48px;
  padding: 0 22px;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  border: 1px solid var(--primary);
  background: var(--primary);
  color: var(--on-primary);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.02em;
  transition: opacity 150ms ease;
}
.github-hero-btn:hover {
  opacity: 0.92;
}
.hero-scroll-btn {
  min-height: 48px;
  padding: 0 20px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--ink);
  font-size: 14px;
  font-weight: 500;
  transition: border-color 150ms ease;
}
.hero-scroll-btn:hover {
  border-color: var(--boundary);
}
.heritage-visual-card {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.heritage-image-frame {
  border: 1px solid var(--border);
  overflow: hidden;
  background: var(--surface);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.16);
}
.heritage-decor-img {
  width: 100%;
  height: auto;
  display: block;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  transition: transform 350ms ease;
}
.heritage-image-frame:hover .heritage-decor-img {
  transform: scale(1.03);
}
.heritage-caption {
  font: 500 12px/1.5 var(--sans);
  color: var(--muted);
  word-break: keep-all;
}

.text-links { margin-top: 32px; display: flex; flex-wrap: wrap; gap: 20px; }
.text-link { min-height: 44px; display: inline-flex; align-items: center; gap: 10px; border-bottom: 1px solid var(--ink); font-size: 14px; font-weight: 600; }
.text-link::after { content: "↗"; color: var(--boundary); font-size: 17px; }
.text-link.secondary { border-bottom-color: var(--border); color: var(--muted); }

/* Section Header (Unified layout for main sections) */
.section-header,
.showcase-header {
  margin-bottom: clamp(24px, 3.2vw, 36px);
}
.section-header h2,
.showcase-title-row h2 {
  margin: 0 0 8px 0;
  font-size: clamp(26px, 3vw, 34px);
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: -0.025em;
  color: var(--ink);
}
.section-header p,
.section-header .section-intro,
.showcase-lead {
  margin: 0;
  color: var(--muted);
  font-size: clamp(15px, 1.1vw, 16px);
  line-height: 1.65;
  max-width: 780px;
}

/* Tactical Dashboard Showcase */
.tactical-showcase-section {
  width: 100%;
  padding-block: clamp(72px, 8.5vw, 120px);
  background: var(--canvas);
}

/* Simulator Container Shell */
.pipeline-simulator-shell {
  width: min(var(--shell), calc(100% - var(--pad) * 2));
  margin-inline: auto;
  border: 1px solid var(--border);
  background: var(--surface);
  display: flex;
  flex-direction: column;
}

/* Top Scenario Navigation (4 Buttons) */
.pipeline-top-scenarios {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-bottom: 1px solid var(--border);
  background: var(--quiet);
}

.sim-scenario-btn {
  padding: 16px 20px;
  display: flex;
  align-items: flex-start;
  gap: 14px;
  background: transparent;
  border: none;
  border-right: 1px solid var(--border);
  border-bottom: 3px solid transparent;
  color: var(--muted);
  cursor: pointer;
  text-align: left;
  transition: background 150ms, color 150ms, border-color 150ms;
}
.sim-scenario-btn:last-child {
  border-right: none;
}
.sim-scenario-btn:hover {
  background: var(--surface);
  color: var(--ink);
}
.sim-scenario-btn:focus-visible {
  outline: 2px solid var(--boundary-accent);
  outline-offset: -2px;
}
.sim-scenario-btn.active {
  background: var(--surface);
  color: var(--ink);
  border-bottom-color: var(--boundary-accent);
}
.sim-tab-num {
  font: 700 14px/1 var(--mono);
  color: var(--boundary-accent);
  padding-top: 2px;
  flex-shrink: 0;
}
.sim-tab-info {
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 0;
}
.sim-tab-title {
  font-size: 14px;
  font-weight: 600;
  line-height: 1.35;
  color: var(--ink);
}
.sim-tab-meta {
  font-size: 11px;
  line-height: 1.3;
  color: var(--muted);
}

/* Controls & Case Navigation Bar */
.sim-controls-bar {
  padding: 12px 20px;
  border-bottom: 1px solid var(--border);
  background: var(--surface);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.sim-cases-group {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}

.sim-case-btn {
  padding: 7px 14px;
  border: 1px solid var(--border);
  background: var(--quiet);
  color: var(--muted);
  font: 600 12px/1.2 var(--mono);
  cursor: pointer;
  transition: all 150ms;
  border-radius: 2px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.sim-case-btn:hover {
  border-color: var(--boundary-accent);
  color: var(--ink);
}
.sim-case-btn:focus-visible {
  outline: 2px solid var(--boundary-accent);
  outline-offset: 1px;
}
.sim-case-btn.active {
  border-color: var(--boundary-accent);
  background: var(--surface);
  color: var(--ink);
  box-shadow: inset 0 -2px 0 var(--boundary-accent);
}

.sim-playback-group {
  display: flex;
  align-items: center;
  gap: 6px;
}
.sim-ctrl-btn {
  padding: 6px 12px;
  border: 1px solid var(--border);
  background: var(--quiet);
  color: var(--ink);
  font: 500 11px/1.2 var(--mono);
  cursor: pointer;
  border-radius: 2px;
  transition: border-color 150ms, background 150ms;
}
.sim-ctrl-btn:hover {
  border-color: var(--boundary-accent);
}
.sim-ctrl-btn:focus-visible {
  outline: 2px solid var(--boundary-accent);
  outline-offset: 1px;
}
.sim-ctrl-btn.active {
  border-color: var(--boundary-accent);
  background: var(--surface);
}
.sim-ctrl-btn.secondary {
  color: var(--muted);
}

/* Briefing Explanation Card */
.sim-briefing-card {
  padding: 20px 24px;
  border-bottom: 1px solid var(--border);
  background: var(--surface);
}
.briefing-header {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 10px;
}
.briefing-badges {
  display: flex;
  align-items: center;
  gap: 8px;
}
.briefing-phase-badge {
  font: 700 10px/1 var(--mono);
  color: var(--boundary-accent);
  letter-spacing: 0.06em;
}
.briefing-type-badge {
  padding: 2px 7px;
  border: 1px solid var(--border);
  background: var(--quiet);
  color: var(--ink);
  font: 600 10px/1.2 var(--mono);
}
.briefing-status-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font: 500 10px/1 var(--mono);
  color: var(--hud-green);
}
.status-pulse-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--hud-green);
}

.briefing-content h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--ink);
  margin: 0 0 6px 0;
}
.briefing-desc {
  margin: 0 0 14px 0;
  font-size: 14px;
  line-height: 1.6;
  color: var(--muted);
  max-width: 920px;
}
.briefing-tags-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.briefing-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border: 1px solid var(--border);
  background: var(--quiet);
  font-size: 11px;
}
.briefing-tag-label {
  color: var(--muted);
  font: 600 10px/1 var(--mono);
}
.briefing-tag-value {
  color: var(--ink);
  font-weight: 500;
}

/* Simulation Stepper Timeline Bar */
.sim-stepper-container {
  background: var(--quiet);
  border-bottom: 1px solid var(--border);
  padding: 8px 16px;
  overflow-x: auto;
}
.sim-stepper-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: max-content;
}
.sim-step-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: var(--surface);
  font: 500 11px/1.2 var(--mono);
  color: var(--muted);
  cursor: pointer;
  transition: all 180ms ease;
  white-space: nowrap;
}
.sim-step-pill:hover {
  border-color: var(--boundary-accent);
  color: var(--ink);
}
.sim-step-pill.is-active {
  background: var(--primary);
  border-color: var(--primary);
  color: var(--on-primary);
  font-weight: 700;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.08);
}
.sim-step-pill.is-active .sim-step-num {
  background: var(--boundary-accent);
  color: #ffffff;
}
.sim-step-pill.is-completed {
  border-color: var(--border);
  background: var(--surface);
  color: var(--ink);
}
.sim-step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 18px;
  height: 18px;
  border-radius: 2px;
  background: var(--quiet);
  color: var(--muted);
  font-size: 10px;
  font-weight: 700;
}
.sim-step-title {
  letter-spacing: 0.02em;
}

/* Simulation Canvas Stage */
.sim-stage-wrapper {
  position: relative;
  width: 100%;
  background: var(--canvas);
  overflow-x: auto;
  overflow-y: visible;
  padding-block: 16px;
  border-bottom: 1px solid var(--border);
}
.sim-stage {
  position: relative;
  width: 1000px;
  min-width: 1000px;
  margin-inline: auto;
  height: 460px;
}
.sim-svg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

/* SVG Conduits & Boundaries */
.sim-conduit-path {
  fill: none;
  stroke: var(--hud-conduit);
  stroke-width: 2.5;
  transition: stroke 200ms ease;
}
.sim-conduit-path.active {
  stroke: var(--primary);
  stroke-width: 3;
}
.sim-conduit-path.dashed {
  stroke-dasharray: 6 5;
  stroke: var(--boundary-accent);
}
.sim-conduit-path.blocked {
  stroke: var(--danger);
  stroke-width: 2.5;
  stroke-dasharray: 4 4;
}

/* Boundary Regions */
.sim-region-rect {
  fill: var(--surface);
  stroke: var(--border);
  stroke-width: 1.5;
  rx: 6;
  transition: stroke 300ms ease, fill 300ms ease;
}
.sim-region-rect.external {
  stroke: var(--boundary-accent);
  stroke-dasharray: 5 4;
}
.sim-region-rect.boundary-active {
  stroke: var(--boundary-accent);
  stroke-width: 2.5;
}
.sim-region-badge {
  font: 700 9px/1.2 var(--mono);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.sim-region-label {
  font: 700 11px/1.2 var(--mono);
  fill: var(--muted);
  letter-spacing: 0.04em;
}
.sim-region-label.external {
  fill: var(--boundary-accent);
}

/* Boundary Checkpoint Gate Markers */
.sim-checkpoint-ring {
  fill: none;
  stroke: var(--border);
  stroke-width: 2;
  transform-origin: center;
  transition: all 250ms ease;
}
.sim-checkpoint-ring.active {
  stroke: var(--boundary-accent);
  stroke-width: 3.5;
  animation: checkpointPing 700ms cubic-bezier(0.2, 0.8, 0.2, 1) infinite alternate;
}
@keyframes checkpointPing {
  from {
    transform: scale(0.92);
    stroke-opacity: 0.6;
  }
  to {
    transform: scale(1.2);
    stroke-opacity: 1;
  }
}
.sim-checkpoint-center {
  fill: var(--surface);
  stroke: var(--border);
  stroke-width: 1.5;
}
.sim-checkpoint-label {
  font: 700 9px/1 var(--mono);
  fill: var(--boundary-accent);
  letter-spacing: 0.05em;
}

/* Pulses & Wavefronts */
.sim-pulse-wave {
  fill: none;
  stroke-width: 2.5;
}
.sim-pulse-wave.replace {
  stroke: var(--hud-green);
}
.sim-pulse-wave.block {
  stroke: var(--danger);
  stroke-width: 3.5;
}
.sim-pulse-wave.boundary {
  stroke: var(--boundary-accent);
  stroke-width: 3;
}

/* DOM Nodes Layer */
.sim-nodes-layer {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

/* Positional Classes for Sim Nodes (CSP safe, zero inline styles) */
.pos-codex-mid { left: 160px; top: 230px; }
.pos-door-mid { left: 500px; top: 230px; }
.pos-openai-mid { left: 840px; top: 230px; }
.pos-codex-top { left: 160px; top: 130px; }
.pos-claude-bot { left: 160px; top: 330px; }
.pos-s1-c1 { left: 160px; top: 110px; }
.pos-s1-c2 { left: 160px; top: 230px; }
.pos-s1-c3 { left: 160px; top: 350px; }

.pos-s2-codex { left: 130px; top: 230px; }
.pos-s2-door { left: 310px; top: 230px; }
.pos-s2-gate { left: 570px; top: 230px; }
.pos-s2-openai { left: 850px; top: 230px; }

.pos-s2-door-a { left: 230px; top: 110px; }
.pos-s2-door-b { left: 230px; top: 230px; }
.pos-s2-door-c { left: 230px; top: 350px; }

.pos-s3-vault { left: 480px; top: 100px; }
.pos-s3-codex { left: 140px; top: 330px; }
.pos-s3-door { left: 480px; top: 330px; }
.pos-s3-openai { left: 820px; top: 330px; }

.pos-s4-agent { left: 160px; top: 230px; }
.pos-s4-gate { left: 500px; top: 230px; }
.pos-s4-openai { left: 840px; top: 230px; }
.pos-s4-rogue { left: 160px; top: 130px; }
.pos-s4-internal { left: 160px; top: 330px; }

/* Refined Node Elements */
.sim-node {
  position: absolute;
  transform: translate(-50%, -50%);
  background: var(--surface);
  border: 1.5px solid var(--border);
  border-radius: 6px;
  padding: 10px 14px;
  display: flex;
  align-items: center;
  gap: 12px;
  box-shadow: 0 3px 10px rgba(0, 0, 0, 0.05);
  pointer-events: auto;
  transition: transform 260ms cubic-bezier(0.2, 0.8, 0.2, 1),
              box-shadow 260ms ease,
              border-color 260ms ease,
              opacity 260ms ease;
  min-width: 155px;
  z-index: 10;
}
.sim-node:hover {
  border-color: var(--boundary-accent);
}

/* Active & Focused Node State */
.sim-node.is-active {
  transform: translate(-50%, -50%) scale(1.07);
  border-color: var(--boundary-accent);
  box-shadow: 0 0 0 3px rgba(181, 128, 31, 0.25), 0 8px 24px rgba(0, 0, 0, 0.12);
  z-index: 25;
}
.sim-node.is-active.door-node {
  border-color: var(--boundary-accent);
}
.sim-node.is-active.gate-node {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(23, 59, 88, 0.25), 0 8px 24px rgba(0, 0, 0, 0.12);
}
.sim-node.is-active.vault-node {
  border-color: var(--hud-purple);
  box-shadow: 0 0 0 3px rgba(130, 80, 223, 0.25), 0 8px 24px rgba(0, 0, 0, 0.12);
}
.sim-node.is-dimmed {
  opacity: 0.65;
}
.sim-node.is-blocked {
  border-color: var(--danger);
  box-shadow: 0 0 0 3px rgba(180, 35, 43, 0.3), 0 8px 24px rgba(180, 35, 43, 0.18);
  transform: translate(-50%, -50%) scale(1.07);
  z-index: 25;
}

.sim-node.door-node {
  border-color: var(--boundary-accent);
  min-width: 175px;
}
.sim-node.gate-node {
  border-color: var(--primary);
}
.sim-node.vault-node {
  border-color: var(--hud-purple);
  border-style: dashed;
}

.sim-node-icon {
  width: 28px;
  height: 28px;
  object-fit: contain;
  flex-shrink: 0;
}
.sim-node-content {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}
.sim-node-title {
  font-size: 13px;
  font-weight: 700;
  color: var(--ink);
  white-space: nowrap;
}
.sim-node-sub {
  font: 500 10.5px/1.1 var(--mono);
  color: var(--muted);
  white-space: nowrap;
}
.sim-node-badge {
  font: 700 9px/1 var(--mono);
  padding: 3px 6px;
  border-radius: 3px;
  background: var(--quiet);
  color: var(--muted);
  display: inline-block;
  margin-top: 4px;
  width: fit-content;
  letter-spacing: 0.02em;
}
.sim-node-badge.warning {
  background: rgba(180, 35, 43, 0.12);
  color: var(--danger);
  border: 1px solid var(--danger);
}
.sim-node-badge.gold {
  background: rgba(181, 128, 31, 0.12);
  color: var(--boundary-accent);
  border: 1px solid var(--boundary-accent);
}
.sim-node-badge.green {
  background: rgba(26, 127, 55, 0.12);
  color: var(--hud-green);
  border: 1px solid var(--hud-green);
}
.sim-node-badge.purple {
  background: rgba(130, 80, 223, 0.12);
  color: var(--hud-purple);
  border: 1px solid var(--hud-purple);
}

/* Door Multi-Listener Gauges */
.door-gauges-container {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-top: 6px;
  padding-top: 6px;
  border-top: 1px solid var(--border);
}
.gauge-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  font: 500 9.5px/1 var(--mono);
}
.gauge-label {
  color: var(--muted);
}
.gauge-val {
  color: var(--boundary-accent);
  font-weight: 700;
}

/* Large Readable Dwell Inspector Card (Active Phase Focus) */
.sim-node-inspector {
  position: absolute;
  left: 50%;
  width: 280px;
  background: var(--surface);
  border: 1.5px solid var(--boundary-accent);
  border-radius: 6px;
  padding: 10px 14px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
  pointer-events: none;
  z-index: 40;
  display: flex;
  flex-direction: column;
  gap: 5px;
  animation: simInspectorIn 220ms cubic-bezier(0.16, 1, 0.3, 1) forwards;
}
.sim-node-inspector.inspector-top {
  top: -14px;
  transform: translate(-50%, -100%);
}
.sim-node-inspector.inspector-bot {
  bottom: -14px;
  transform: translate(-50%, 100%);
}

/* Smart horizontal anchoring to prevent canvas edge clipping */
.sim-node-inspector.inspector-anchor-left.inspector-top {
  left: 0;
  transform: translate(0, -100%);
}
.sim-node-inspector.inspector-anchor-left.inspector-bot {
  left: 0;
  transform: translate(0, 100%);
}
.sim-node-inspector.inspector-anchor-right.inspector-top {
  left: auto;
  right: 0;
  transform: translate(0, -100%);
}
.sim-node-inspector.inspector-anchor-right.inspector-bot {
  left: auto;
  right: 0;
  transform: translate(0, 100%);
}
.sim-node-inspector.theme-danger {
  border-color: var(--danger);
}
.sim-node-inspector.theme-safe {
  border-color: var(--hud-green);
}
.sim-node-inspector.theme-primary {
  border-color: var(--primary);
}
.sim-node-inspector.theme-purple {
  border-color: var(--hud-purple);
}

.inspector-header-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}
.inspector-phase-tag {
  font: 700 9px/1 var(--mono);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--boundary-accent);
}
.sim-node-inspector.theme-danger .inspector-phase-tag {
  color: var(--danger);
}
.sim-node-inspector.theme-safe .inspector-phase-tag {
  color: var(--hud-green);
}
.sim-node-inspector.theme-primary .inspector-phase-tag {
  color: var(--primary);
}
.sim-node-inspector.theme-purple .inspector-phase-tag {
  color: var(--hud-purple);
}

.inspector-dwell-pill {
  font: 600 8.5px/1 var(--mono);
  padding: 2px 5px;
  border-radius: 3px;
  background: var(--quiet);
  color: var(--muted);
}
.inspector-title {
  font-size: 12.5px;
  font-weight: 700;
  color: var(--ink);
  line-height: 1.3;
}
.inspector-desc {
  font-size: 11px;
  color: var(--muted);
  line-height: 1.4;
}
.inspector-payload-box {
  margin-top: 3px;
  padding: 5px 8px;
  border-radius: 4px;
  font: 600 10.5px/1.2 var(--mono);
  word-break: break-all;
}
.inspector-payload-box.sensitive {
  background: rgba(181, 128, 31, 0.12);
  color: var(--boundary-accent);
  border: 1px solid var(--boundary-accent);
}
.inspector-payload-box.masked {
  background: rgba(26, 127, 55, 0.12);
  color: var(--hud-green);
  border: 1px solid var(--hud-green);
}
.inspector-payload-box.blocked {
  background: rgba(180, 35, 43, 0.12);
  color: var(--danger);
  border: 1px solid var(--danger);
}
.inspector-payload-box.token {
  background: rgba(23, 59, 88, 0.1);
  color: var(--primary);
  border: 1px solid var(--primary);
}
.inspector-payload-box.purple {
  background: rgba(130, 80, 223, 0.12);
  color: var(--hud-purple);
  border: 1px solid var(--hud-purple);
}

@keyframes simInspectorIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}
.sim-node-inspector.inspector-bot {
  animation-name: simInspectorInBot;
}
@keyframes simInspectorInBot {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

/* Wire Trace Log Bar */
.sim-wire-bar {
  padding: 12px 20px;
  background: var(--quiet);
  display: flex;
  align-items: center;
  gap: 14px;
  border-top: 1px solid var(--border);
}
.wire-badge {
  font: 700 10px/1 var(--mono);
  color: var(--boundary-accent);
  letter-spacing: 0.08em;
  flex-shrink: 0;
  padding: 3px 6px;
  border-radius: 2px;
  background: var(--surface);
  border: 1px solid var(--border);
}
.wire-stream {
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.wire-text {
  font: 500 11.5px/1.4 var(--mono);
  color: var(--ink);
}

.boundary-figure { margin: 0; border-block: 1px solid var(--ink); }
.figure-head { padding: 12px 0; display: flex; justify-content: space-between; gap: 16px; border-bottom: 1px solid var(--border); color: var(--muted); font: 500 10px/1.4 var(--mono); }
.route { padding: 22px 0; border-bottom: 1px solid var(--border); }
.route:last-of-type { border-bottom: 0; }
.route-label { margin-bottom: 13px; display: flex; justify-content: space-between; gap: 12px; font-size: 12px; }
.route-label span:last-child { color: var(--muted); }
.route-track { display: flex; align-items: center; min-width: 0; }
.route-node { flex: 0 0 auto; font: 600 10px/1.2 var(--mono); }
.route-rule { position: relative; height: 1px; margin-inline: 10px; flex: 1; background: var(--boundary); }
.route-rule::before, .route-rule::after {
  content: "";
  position: absolute;
  top: -3px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--boundary);
}
.route-rule::before { left: 0; }
.route-rule::after { right: 0; border: 2px solid var(--boundary); background: var(--canvas); }
.route-rule.dashed { height: 0; border-top: 1px dashed var(--boundary); background: transparent; }
.boundary-figure figcaption { padding: 14px 0; border-top: 1px solid var(--ink); color: var(--muted); font-size: 12px; }

.fact-strip { border-block: 1px solid var(--border); background: var(--surface); }
.fact-strip.invariants-strip { background: var(--quiet); }
.fact-grid { display: grid; grid-template-columns: repeat(4, 1fr); }
.fact { min-height: 128px; padding: 24px; border-left: 1px solid var(--border); }
.fact:first-child { border-left: 0; }
.fact strong { display: block; margin-bottom: 8px; font-size: 14px; }
.fact p { margin: 0; color: var(--muted); font-size: 13px; line-height: 1.55; }

.content-section { padding-block: clamp(82px, 10vw, 148px); }
#roles { background: var(--surface); border-bottom: 1px solid var(--border); }
.section-layout { display: grid; grid-template-columns: minmax(210px, 3fr) minmax(0, 9fr); gap: clamp(40px, 8vw, 120px); align-items: start; }
.section-index { position: sticky; top: 108px; }
.section-index span { display: block; margin-bottom: 16px; color: var(--boundary); font: 600 11px/1.4 var(--mono); }
.section-index h2 { margin: 0; font-size: clamp(26px, 3vw, 40px); font-weight: 600; line-height: 1.12; letter-spacing: -0.035em; }
.section-intro { max-width: 720px; margin-bottom: 42px; color: var(--muted); font-size: 18px; line-height: 1.7; }

.role-columns { display: grid; grid-template-columns: repeat(3, 1fr); border-block: 1px solid var(--ink); }
.role { min-height: 420px; padding: 28px 28px 30px 0; border-left: 1px solid var(--border); display: flex; flex-direction: column; }
.role:first-child { border-left: 0; }
.role + .role { padding-left: 28px; }
.role .role-id { color: var(--primary); font: 600 11px/1.4 var(--mono); letter-spacing: 0.04em; }
.role-media {
  width: 100%;
  height: 160px;
  margin: 18px 0 22px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--quiet);
  border: 1px solid var(--border);
}
.role-sprite {
  width: 112px;
  height: 112px;
  object-fit: contain;
  image-rendering: pixelated;
  transition: transform 180ms ease;
}
.role:hover .role-sprite {
  transform: translateY(-2px) scale(1.04);
}
.role h3 { margin: 0 0 10px; font-size: 24px; font-weight: 600; letter-spacing: -0.025em; }
.role .role-subtitle { margin-bottom: 16px; color: var(--muted); font-size: 13px; }
.role p:last-child { margin: 0; color: var(--muted); font-size: 15px; line-height: 1.7; }

.mode-list { border-top: 1px solid var(--ink); }
.mode-row { min-height: 150px; padding: 25px 0; display: grid; grid-template-columns: 60px minmax(210px, 3fr) minmax(280px, 5fr) minmax(220px, 3fr); align-items: center; gap: 28px; border-bottom: 1px solid var(--border); }
.mode-number { color: var(--primary); font: 600 11px/1.4 var(--mono); }
.mode-title strong { display: block; font-size: 18px; }
.mode-title span { color: var(--muted); font-size: 12px; }
.mode-row > p { margin: 0; color: var(--muted); font-size: 14px; line-height: 1.65; }
.mode-path { text-align: right; color: var(--ink); font: 500 10px/1.6 var(--mono); }
.risk-line { margin-top: 24px; padding: 18px 0; display: grid; grid-template-columns: 22px minmax(0, 1fr); gap: 14px; border-block: 1px solid var(--danger); }
.risk-line > span { color: var(--danger); font-weight: 700; }
.risk-line strong { display: block; margin-bottom: 4px; font-size: 14px; }
.risk-line p { margin: 0; color: var(--muted); font-size: 13px; }

.pipeline-list { border-top: 1px solid var(--ink); }
.pipeline-row { padding: 21px 0; display: grid; grid-template-columns: 60px minmax(170px, 3fr) minmax(280px, 6fr); gap: 28px; border-bottom: 1px solid var(--border); }
.pipeline-row span { color: var(--primary); font: 600 11px/1.6 var(--mono); }
.pipeline-row strong { font-size: 16px; }
.pipeline-row p { margin: 0; color: var(--muted); font-size: 14px; }

.public-boundary { padding-block: clamp(76px, 9vw, 120px); background: var(--primary); color: var(--on-primary); }
.public-boundary .section-layout { align-items: start; }
.public-boundary .section-index span { color: var(--boundary); }
.public-boundary .section-index { position: static; }
.boundary-statement { max-width: 830px; }
.boundary-statement h2 { margin-bottom: 24px; font-size: clamp(38px, 5vw, 66px); font-weight: 600; line-height: 1.02; letter-spacing: -0.05em; }
.boundary-statement > p { max-width: 720px; color: color-mix(in srgb, var(--on-primary) 72%, transparent); font-size: 17px; }
.boundary-facts { margin-top: 46px; display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid color-mix(in srgb, var(--on-primary) 35%, transparent); }
.boundary-facts article { padding: 22px 22px 0 0; }
.boundary-facts strong { display: block; margin-bottom: 8px; font-size: 13px; }
.boundary-facts p { margin: 0; color: color-mix(in srgb, var(--on-primary) 68%, transparent); font-size: 13px; }

.site-footer {
  padding-block: clamp(44px, 5.5vw, 68px) clamp(28px, 3.5vw, 42px);
  border-top: 1px solid var(--border);
  background: var(--surface);
}
.footer-shell {
  display: flex;
  flex-direction: column;
  gap: clamp(28px, 3.5vw, 42px);
}
.footer-cta-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
}
.footer-brand-lockup {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.footer-tagline {
  color: var(--muted);
  font: 500 11px/1.4 var(--mono);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}
.footer-cta-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}
.github-footer-btn {
  min-height: 42px;
  padding: 0 16px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border: 1px solid var(--border);
  background: var(--canvas);
  color: var(--ink);
  font-size: 13px;
  font-weight: 600;
  transition: border-color 150ms ease, color 150ms ease;
}
.github-footer-btn:hover {
  border-color: var(--boundary);
  color: var(--boundary);
}
.github-footer-btn .btn-arrow,
.footer-top-btn .btn-arrow {
  font-size: 13px;
  transition: transform 150ms ease;
}
.github-footer-btn:hover .btn-arrow {
  transform: translate(2px, -2px);
}
.footer-top-btn {
  min-height: 42px;
  padding: 0 14px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border: 1px solid var(--border);
  background: var(--canvas);
  color: var(--muted);
  font-size: 12px;
  font-weight: 600;
  transition: border-color 150ms ease, color 150ms ease;
}
.footer-top-btn:hover {
  border-color: var(--ink);
  color: var(--ink);
}
.footer-top-btn:hover .btn-arrow {
  transform: translateY(-2px);
}
.footer-bottom-bar {
  padding-top: 20px;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  color: var(--muted);
  font: 500 11px/1.5 var(--mono);
}
.footer-anchors {
  display: flex;
  align-items: center;
  gap: 8px;
}
.footer-anchors a {
  color: var(--muted);
  transition: color 150ms ease;
}
.footer-anchors a:hover {
  color: var(--boundary);
}
.footer-sep {
  color: var(--border);
  user-select: none;
}
.footer-license {
  letter-spacing: 0.04em;
}

.page-hero { padding-block: clamp(70px, 9vw, 126px) clamp(56px, 7vw, 94px); border-bottom: 1px solid var(--ink); }
.breadcrumbs { margin-bottom: 42px; display: flex; flex-wrap: wrap; gap: 8px; color: var(--muted); font-size: 12px; }
.breadcrumbs a { border-bottom: 1px solid var(--border); }
.page-label { margin-bottom: 24px; color: var(--primary); font: 600 11px/1.4 var(--mono); }
.page-hero h1 { max-width: 1050px; margin-bottom: 26px; font-size: clamp(46px, 6vw, 78px); font-weight: 600; line-height: 1; letter-spacing: -0.055em; }
.page-hero > p:last-of-type { max-width: 820px; margin-bottom: 0; color: var(--muted); font-size: 19px; line-height: 1.7; }
.page-note { margin-top: 32px; padding-top: 14px; border-top: 1px solid var(--border); color: var(--muted); font: 500 11px/1.5 var(--mono); }

.document-layout { padding-block: 60px 120px; display: grid; grid-template-columns: 220px minmax(0, 1fr); gap: clamp(52px, 8vw, 120px); align-items: start; }
.toc { position: sticky; top: 106px; display: grid; gap: 2px; }
.toc strong { margin-bottom: 10px; color: var(--muted); font-size: 11px; }
.toc a { min-height: 40px; padding: 7px 0; display: flex; align-items: center; border-bottom: 1px solid var(--border); color: var(--muted); font-size: 13px; }
.toc a:hover { color: var(--ink); }
.article-flow { min-width: 0; }
.article-section { padding-bottom: 82px; scroll-margin-top: 106px; }
.article-section + .article-section { padding-top: 82px; border-top: 1px solid var(--ink); }
.article-number { margin-bottom: 18px; color: var(--primary); font: 600 11px/1.4 var(--mono); }
.article-section h2 { max-width: 820px; margin-bottom: 20px; font-size: clamp(32px, 4vw, 50px); font-weight: 600; line-height: 1.08; letter-spacing: -0.04em; }
.article-section > p, .article-copy { max-width: 840px; color: var(--muted); font-size: 16px; line-height: 1.78; }
.article-section h3 { margin: 36px 0 10px; font-size: 19px; }
.article-section ul:not(.tag-list), .article-section ol:not(.item-list) { max-width: 840px; padding-left: 20px; color: var(--muted); line-height: 1.75; }
.article-section li + li { margin-top: 8px; }
.code-block { margin: 26px 0 0; padding: 20px 0; overflow-x: auto; border-block: 1px solid var(--border); color: var(--ink); font: 500 12px/1.85 var(--mono); white-space: pre; }
.callout { margin-top: 28px; padding: 18px 0 18px 18px; border-left: 3px solid var(--boundary); }
.callout.danger { border-left-color: var(--danger); }
.callout strong { display: block; margin-bottom: 5px; font-size: 14px; }
.callout p { max-width: 820px; margin: 0; color: var(--muted); font-size: 13px; }
.table-scroll { margin-top: 28px; overflow-x: auto; }
.data-table { width: 100%; border-collapse: collapse; background: var(--surface); font-size: 13px; }
.data-table th, .data-table td { min-width: 150px; padding: 14px 16px; border: 1px solid var(--border); text-align: left; vertical-align: top; }
.data-table th { color: var(--muted); font-size: 11px; font-weight: 600; }
.data-table td:first-child { color: var(--ink); font-weight: 600; }
.data-table code { font-size: 11px; overflow-wrap: anywhere; }
.tag-list { margin: 26px 0 0; padding: 0; display: flex; flex-wrap: wrap; list-style: none; border-top: 1px solid var(--border); }
.tag-list li { margin: 0; padding: 10px 16px 10px 0; border-bottom: 1px solid var(--border); color: var(--muted); font: 500 11px/1.4 var(--mono); }
.tag-list li + li { margin-left: 16px; }
.item-list { margin: 30px 0 0; padding: 0; list-style: none; border-top: 1px solid var(--ink); }
.item-list li { margin: 0; padding: 20px 0; display: grid; grid-template-columns: 52px minmax(0, 1fr); gap: 18px; border-bottom: 1px solid var(--border); }
.item-list span { color: var(--primary); font: 600 11px/1.5 var(--mono); }
.item-list strong { display: block; margin-bottom: 4px; }
.item-list p { margin: 0; color: var(--muted); font-size: 14px; }
.next-links { padding-top: 34px; display: flex; flex-wrap: wrap; gap: 20px; }

.matrix { margin-top: 30px; border-top: 1px solid var(--ink); }
.matrix-row { padding: 20px 0; display: grid; grid-template-columns: minmax(160px, 0.7fr) minmax(240px, 1fr) minmax(240px, 1fr); gap: 30px; border-bottom: 1px solid var(--border); }
.matrix-row.header { padding-block: 11px; color: var(--muted); font-size: 10px; font-weight: 600; }
.matrix-row strong { font-size: 14px; }
.matrix-row p { margin: 0; color: var(--muted); font-size: 13px; }

.pricing-grid { display: grid; grid-template-columns: repeat(3, 1fr); border-block: 1px solid var(--ink); }
.pricing-item { min-height: 390px; padding: 28px 28px 30px 0; border-left: 1px solid var(--border); }
.pricing-item:first-child { border-left: 0; }
.pricing-item + .pricing-item { padding-left: 28px; }
.pricing-item .mono { color: var(--primary); font-size: 10px; }
.pricing-item h2 { margin: 58px 0 8px; font-size: 25px; }
.pricing-item .price-state { display: block; margin-bottom: 18px; color: var(--muted); font-size: 18px; font-weight: 500; }
.pricing-item p { color: var(--muted); font-size: 14px; }
.pricing-item ul { margin: 34px 0 0; padding: 18px 0 0; border-top: 1px solid var(--border); list-style: none; color: var(--muted); font-size: 13px; }
.pricing-item li { padding: 6px 0; }

.release-status { padding: 34px 0; border-block: 1px solid var(--ink); }
.release-status-head { display: flex; justify-content: space-between; gap: 24px; color: var(--muted); font: 500 11px/1.4 var(--mono); }
.release-status h2 { margin: 56px 0 16px; font-size: clamp(34px, 4.5vw, 54px); font-weight: 600; }
.release-status > p { max-width: 820px; color: var(--muted); }
.release-grid { margin-top: 36px; display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--ink); }
.release-card { min-height: 250px; padding: 24px 24px 24px 0; display: flex; flex-direction: column; border-left: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.release-card:nth-child(3n + 1) { border-left: 0; }
.release-card:not(:nth-child(3n + 1)) { padding-left: 24px; }
.release-card code { color: var(--muted); font-size: 9px; overflow-wrap: anywhere; }
.release-card h3 { margin: 42px 0 6px; font-size: 18px; }
.release-card p { color: var(--muted); font-size: 12px; }
.release-card a { margin-top: auto; min-height: 44px; display: flex; align-items: center; justify-content: space-between; border-top: 1px solid var(--ink); font-size: 13px; font-weight: 600; }
.manifest-meta { margin-top: 24px; padding-top: 18px; display: grid; grid-template-columns: repeat(2, 1fr); gap: 9px 24px; border-top: 1px solid var(--border); color: var(--muted); font: 11px/1.5 var(--mono); }

.legal-stack { max-width: 1040px; }
.legal-section { padding: 42px 0; display: grid; grid-template-columns: 56px minmax(0, 1fr); gap: 26px; border-bottom: 1px solid var(--border); }
.legal-section:first-child { border-top: 1px solid var(--ink); }
.legal-section > code { color: var(--primary); font-size: 11px; font-weight: 600; }
.legal-section h2 { margin-bottom: 12px; font-size: 25px; font-weight: 600; }
.legal-section p { margin: 0; color: var(--muted); line-height: 1.8; }

@media (max-width: 1050px) {
  .pipeline-top-scenarios { grid-template-columns: repeat(2, 1fr); }
  .sim-scenario-btn:nth-child(2) { border-right: none; }
  .sim-scenario-btn:nth-child(1), .sim-scenario-btn:nth-child(2) { border-bottom: 1px solid var(--border); }
  .boundary-figure { width: min(760px, 100%); }
  .fact-grid { grid-template-columns: repeat(2, 1fr); }
  .fact:nth-child(3) { border-top: 1px solid var(--border); border-left: 0; }
  .fact:nth-child(4) { border-top: 1px solid var(--border); }
  .section-layout { grid-template-columns: 1fr; }
  .section-index { position: static; max-width: 650px; }
  .mode-row { grid-template-columns: 48px minmax(190px, 3fr) minmax(0, 5fr); }
  .mode-path { grid-column: 2 / -1; text-align: left; }
  .pricing-grid, .release-grid { grid-template-columns: repeat(2, 1fr); }
  .release-card:nth-child(3n + 1) { border-left: 1px solid var(--border); padding-left: 24px; }
  .release-card:nth-child(2n + 1) { border-left: 0; padding-left: 0; }
}

@media (max-width: 800px) {
  html { scroll-padding-top: 72px; }
  .nav-shell { min-height: 64px; gap: 10px; }
  .wordmark { letter-spacing: 0.06em; }
  .menu-toggle { display: inline-flex; }
  .theme-toggle span { display: none; }
  .site-nav {
    position: absolute;
    inset: 64px 0 auto 0;
    padding: 12px var(--pad) 18px;
    flex-direction: column;
    align-items: stretch;
    border-bottom: 1px solid var(--ink);
    background: var(--canvas);
  }
  .site-nav[hidden] { display: none; }
  .site-nav a { justify-content: flex-start; }
  .site-nav .release-link { margin-left: 0; }
  .pipeline-top-scenarios { grid-template-columns: 1fr; }
  .sim-scenario-btn { border-right: none; border-bottom: 1px solid var(--border); padding: 12px 16px; }
  .sim-controls-bar { flex-direction: column; align-items: stretch; gap: 10px; }
  .sim-playback-group { justify-content: space-between; width: 100%; }
  .sim-briefing-card { padding: 16px; }
  .sim-stage { width: 1000px; min-width: 1000px; height: 460px; }
  .role-columns { grid-template-columns: 1fr; }
  .role, .role + .role { min-height: 0; padding: 26px 0; border-left: 0; border-bottom: 1px solid var(--border); }
  .role:last-child { border-bottom: 0; }
  .role h3 { margin-top: 0; }
  .role-media { height: 180px; }
  .mode-row { grid-template-columns: 38px minmax(0, 1fr); gap: 16px; }
  .mode-row > p, .mode-path { grid-column: 2; }
  .pipeline-row { grid-template-columns: 42px minmax(0, 1fr); gap: 16px; }
  .boundary-facts { grid-template-columns: 1fr; }
  .footer-cta-row { flex-direction: column; align-items: flex-start; gap: 18px; }
  .footer-cta-actions { width: 100%; justify-content: flex-start; flex-wrap: wrap; }
  .footer-bottom-bar { flex-direction: column; align-items: flex-start; gap: 12px; }
  .document-layout { grid-template-columns: 1fr; padding-top: 34px; }
  .toc { position: static; grid-template-columns: repeat(2, 1fr); border-top: 1px solid var(--ink); }
  .toc strong { grid-column: 1 / -1; padding-top: 10px; }
  .matrix-row { grid-template-columns: 1fr; gap: 8px; }
  .matrix-row.header { display: none; }
  .pricing-grid, .release-grid { grid-template-columns: 1fr; }
  .pricing-item, .pricing-item + .pricing-item { min-height: 0; padding: 28px 0; border-left: 0; border-bottom: 1px solid var(--border); }
  .release-card, .release-card:nth-child(3n + 1), .release-card:nth-child(2n + 1) { padding: 24px 0; border-left: 0; }
  .manifest-meta { grid-template-columns: 1fr; }
}

@media (max-width: 520px) {
  .fact-grid { grid-template-columns: 1fr; }
  .fact, .fact:nth-child(4) { min-height: 0; border-top: 1px solid var(--border); border-left: 0; }
  .fact:first-child { border-top: 0; }
  .text-links { align-items: flex-start; flex-direction: column; }
  .route-node { font-size: 9px; }
  .page-hero h1 { font-size: 44px; }
  .toc { grid-template-columns: 1fr; }
  .toc strong { grid-column: auto; }
  .data-table th, .data-table td { padding: 12px; }
  .legal-section { grid-template-columns: 38px minmax(0, 1fr); gap: 12px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .role-sprite { transition: none; transform: none; }
  .sim-node, .sim-node-inspector, .sim-step-pill, .sim-conduit-path {
    transition: none !important;
    animation: none !important;
  }
}

@media (forced-colors: active) {
  .geumjul-logo, .route-rule { color: CanvasText; background: CanvasText; }
  .route-rule.dashed { border-top-color: CanvasText; }
}