:root {
  --ink: #050811;
  --ink-soft: #080d18;
  --surface: #0b1220;
  --surface-2: #101a2c;
  --surface-3: #142138;
  --line: rgba(166, 186, 221, 0.2);
  --line-strong: rgba(166, 186, 221, 0.36);
  --text: #f6f8fc;
  --muted: #a1adbf;
  --muted-2: #77849a;
  --cyan: #61e4ff;
  --cyan-strong: #27cdef;
  --violet: #9d7dff;
  --green: #b8f24a;
  --danger: #ff718a;
  --display: "Arial Narrow", "Aptos Display", "SF Pro Display", "Inter Tight", system-ui, sans-serif;
  --sans: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans", "Yu Gothic UI", "Malgun Gothic", sans-serif;
  --mono: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  --shell: min(1320px, calc(100vw - 48px));
  --radius: 12px;
  --safe-top: env(safe-area-inset-top, 0px);
  --safe-right: env(safe-area-inset-right, 0px);
  --safe-bottom: env(safe-area-inset-bottom, 0px);
  --safe-left: env(safe-area-inset-left, 0px);
  color-scheme: dark;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(92px + var(--safe-top));
}

body {
  margin: 0;
  padding-right: var(--safe-right);
  padding-left: var(--safe-left);
  overflow-x: hidden;
  background:
    radial-gradient(circle at 85% 6%, rgba(72, 113, 217, 0.09), transparent 27rem),
    var(--ink);
  color: var(--text);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

button,
input,
select {
  font: inherit;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

a {
  color: inherit;
  text-decoration: none;
}

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

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

[hidden] {
  display: none !important;
}

:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 4px;
}

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

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

.skip-link {
  position: fixed;
  top: 10px;
  left: 10px;
  z-index: 200;
  padding: 10px 14px;
  transform: translateY(-150%);
  border-radius: 7px;
  background: var(--cyan);
  color: var(--ink);
  font-weight: 800;
}

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

.error-page {
  display: grid;
  min-height: 100svh;
  padding: 48px max(24px, var(--safe-right)) 48px max(24px, var(--safe-left));
  place-items: center;
  background:
    radial-gradient(circle at 78% 22%, rgba(97, 228, 255, 0.11), transparent 24rem),
    linear-gradient(rgba(113, 154, 213, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(113, 154, 213, 0.04) 1px, transparent 1px);
  background-size: auto, 72px 72px, 72px 72px;
}

.error-page-card {
  width: min(720px, 100%);
  padding: clamp(30px, 6vw, 64px);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: rgba(8, 13, 24, 0.9);
  box-shadow: 0 36px 100px rgba(0, 0, 0, 0.38);
}

.error-page-card .section-index {
  margin-top: 56px;
}

.error-page-card h1 {
  max-width: 650px;
  margin: 0;
  font-family: var(--display);
  font-size: clamp(48px, 9vw, 88px);
  font-weight: 850;
  letter-spacing: -0.045em;
  line-height: 0.98;
  text-wrap: balance;
}

.error-page-card > p:not(.section-index) {
  max-width: 590px;
  margin: 28px 0 0;
  color: var(--muted);
  font-size: 17px;
}

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

.site-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid var(--line);
  background: color-mix(in srgb, var(--ink) 88%, transparent);
  backdrop-filter: blur(18px) saturate(130%);
  padding-top: var(--safe-top);
}

.nav-shell {
  display: flex;
  width: var(--shell);
  min-height: 72px;
  margin-inline: auto;
  align-items: center;
  gap: 28px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-size: 15px;
  font-weight: 780;
  letter-spacing: -0.02em;
  white-space: nowrap;
}

.brand img {
  border-radius: 9px;
}

.nav-links {
  display: flex;
  margin-left: auto;
  align-items: center;
  gap: 24px;
  color: var(--muted);
  font-size: 14px;
  font-weight: 650;
}

.github-link {
  display: inline-flex;
  min-height: 40px;
  padding: 0 15px;
  align-items: center;
  gap: 8px;
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  color: var(--text);
}

.github-link:hover {
  border-color: var(--cyan);
  color: var(--text);
}

.github-link svg {
  width: 19px;
  fill: currentColor;
}

.language-picker {
  position: relative;
  display: inline-flex;
  min-height: 40px;
  align-items: center;
}

.language-picker::before {
  position: absolute;
  left: 11px;
  z-index: 1;
  content: "文";
  color: var(--cyan);
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 800;
  pointer-events: none;
}

.language-picker select {
  width: 104px;
  height: 40px;
  padding: 0 24px 0 29px;
  appearance: none;
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  background: var(--surface);
  color: var(--text);
  cursor: pointer;
  font-size: 12px;
}

.language-picker::after {
  position: absolute;
  right: 10px;
  content: "⌄";
  color: var(--muted);
  pointer-events: none;
}

.menu-toggle {
  display: none;
  width: 46px;
  height: 46px;
  margin-left: auto;
  padding: 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  color: var(--text);
}

.menu-toggle svg {
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
}

.hero {
  position: relative;
  display: grid;
  min-height: min(790px, calc(100svh - 72px));
  grid-template-columns: minmax(480px, 0.88fr) minmax(520px, 1.12fr);
  align-items: center;
  border-bottom: 1px solid var(--line);
}

.hero > *,
.split-heading > *,
.model-grid > *,
.data-top > *,
.open-links > *,
.footer-grid > * {
  min-width: 0;
}

.hero::before {
  position: absolute;
  inset: 0;
  content: "";
  pointer-events: none;
  background-image:
    linear-gradient(rgba(113, 154, 213, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(113, 154, 213, 0.04) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: linear-gradient(90deg, transparent 3%, black 55%, black 100%);
}

.hero-copy {
  position: relative;
  z-index: 2;
  padding: 92px max(48px, calc((100vw - 1320px) / 2)) 72px;
  padding-right: 40px;
}

.hero-project {
  display: flex;
  margin: 0 0 22px;
  align-items: center;
  gap: 10px;
  color: var(--cyan);
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hero-project img {
  border-radius: 7px;
  box-shadow: 0 0 24px rgba(97, 228, 255, 0.18);
}

.hero h1,
.section-heading h2,
.paths-intro h2 {
  margin: 0;
  max-width: 100%;
  font-family: var(--display);
  font-weight: 850;
  letter-spacing: -0.045em;
  line-height: 0.98;
  overflow-wrap: anywhere;
  text-wrap: balance;
}

.hero h1 {
  max-width: 760px;
  font-size: clamp(55px, 5.7vw, 88px);
}

.hero h1 span {
  display: block;
  white-space: nowrap;
}

.hero-lede {
  max-width: 650px;
  margin: 30px 0 0;
  color: #c2cad7;
  font-size: clamp(18px, 1.55vw, 22px);
  line-height: 1.55;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 34px;
}

.button {
  display: inline-flex;
  min-height: 50px;
  padding: 0 20px;
  align-items: center;
  justify-content: center;
  gap: 18px;
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  background: var(--surface);
  color: var(--text);
  font-size: 15px;
  font-weight: 780;
  cursor: pointer;
  transition: transform 160ms ease, border-color 160ms ease, background 160ms ease;
}

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

.button-primary {
  border-color: var(--cyan);
  background: var(--cyan);
  color: #031018;
  box-shadow: 0 16px 50px rgba(39, 205, 239, 0.16);
}

.button-primary:hover {
  background: #8cebff;
  color: #031018;
}

.hero-proof {
  display: flex;
  max-width: 700px;
  margin: 30px 0 0;
  padding: 0;
  flex-wrap: wrap;
  gap: 9px;
  list-style: none;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 11px;
}

.hero-proof li {
  display: flex;
}

.hero-proof a {
  display: inline-flex;
  min-height: 32px;
  padding: 5px 10px;
  align-items: center;
  gap: 7px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(11, 18, 32, 0.72);
  color: var(--muted);
  transition: border-color 160ms ease, background 160ms ease;
}

.hero-proof a:hover {
  border-color: var(--cyan);
  background: var(--surface-2);
  color: var(--text);
}

.hero-proof strong {
  color: var(--cyan);
}

.hero-proof span {
  color: inherit;
}

.collision-note {
  max-width: 660px;
  margin: 28px 0 0;
  color: var(--muted-2);
  font-size: 13.5px;
}

.collision-note a {
  color: var(--muted);
  text-decoration: underline;
  text-decoration-color: var(--line-strong);
  text-underline-offset: 3px;
}

.hero-visual {
  position: relative;
  height: min(790px, calc(100svh - 72px));
  min-height: 650px;
  margin: 0;
  overflow: hidden;
  background:
    radial-gradient(circle at 52% 47%, rgba(65, 167, 218, 0.13), transparent 32%),
    radial-gradient(circle at 80% 28%, rgba(130, 85, 244, 0.12), transparent 30%);
}

.hero-visual::after {
  position: absolute;
  inset: 0;
  content: "";
  pointer-events: none;
  background: linear-gradient(90deg, var(--ink), transparent 16%, transparent 84%, var(--ink));
  opacity: 0.6;
}

#hero-graph {
  display: block;
  width: 100%;
  height: 100%;
  cursor: grab;
}

#hero-graph,
#model-graph {
  touch-action: pan-y pinch-zoom;
}

#hero-graph:focus-visible,
#model-graph:focus-visible {
  outline-offset: -4px;
}

#hero-graph:active,
#model-graph:active {
  cursor: grabbing;
}

.canvas-key {
  position: absolute;
  right: 34px;
  bottom: 30px;
  z-index: 4;
  display: flex;
  gap: 18px;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 11px;
}

.canvas-key span,
.graph-legend span {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.key-node,
.key-gate,
.key-edge {
  display: inline-block;
  flex: none;
}

.key-node {
  width: 13px;
  height: 13px;
  border: 2px solid var(--cyan);
  transform: rotate(30deg);
}

.key-edge {
  width: 20px;
  border-top: 2px dashed var(--violet);
}

.key-gate {
  width: 12px;
  height: 12px;
  border: 2px solid var(--green);
  transform: rotate(45deg);
}

.primitives,
.layers-section,
.paths-section {
  padding-block: 108px;
}

.section-heading {
  max-width: 860px;
}

.split-heading {
  display: grid;
  max-width: none;
  grid-template-columns: minmax(0, 1.1fr) minmax(350px, 0.9fr);
  align-items: end;
  gap: 70px;
}

.section-index,
.aside-label {
  margin: 0 0 16px;
  color: var(--cyan);
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.section-heading h2,
.paths-intro h2 {
  font-size: clamp(42px, 5vw, 70px);
}

.section-heading > p:last-child,
.split-heading > p,
.paths-intro > p:last-child {
  margin: 18px 0 0;
  color: var(--muted);
  font-size: 17px;
}

.paths-art {
  position: relative;
  display: block;
  margin-top: 32px;
  aspect-ratio: 11 / 8;
  overflow: hidden;
  isolation: isolate;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.28);
}

.paths-art picture,
.paths-art img {
  width: 100%;
  height: 100%;
}

.paths-art img {
  object-fit: cover;
  object-position: 50% 50%;
  transition: transform 320ms ease;
}

.paths-art::after {
  position: absolute;
  inset: 0;
  z-index: 1;
  content: "";
  pointer-events: none;
  background:
    linear-gradient(180deg, transparent 54%, rgba(5, 8, 17, 0.66)),
    linear-gradient(90deg, rgba(97, 228, 255, 0.05), transparent 46%, rgba(157, 125, 255, 0.07));
  box-shadow: inset 0 0 0 1px rgba(246, 248, 252, 0.025);
}

.paths-art > span {
  position: absolute;
  right: 14px;
  bottom: 14px;
  left: 14px;
  z-index: 2;
  display: flex;
  min-height: 38px;
  padding: 8px 11px;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  border: 1px solid rgba(246, 248, 252, 0.18);
  border-radius: 7px;
  background: rgba(5, 8, 17, 0.76);
  color: var(--text);
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.03em;
  backdrop-filter: blur(12px);
}

.paths-art > span b {
  font-weight: 700;
}

.paths-art > span i {
  color: var(--cyan);
  font-size: 14px;
  font-style: normal;
}

.paths-art:hover {
  color: var(--text);
}

.paths-art:hover img {
  transform: scale(1.025);
}

.split-heading > p {
  margin: 0 0 2px;
}

.primitive-rail {
  display: grid;
  margin: 62px 0 0;
  padding: 0;
  grid-template-columns: repeat(5, 1fr);
  list-style: none;
  border-top: 1px solid var(--line-strong);
}

.primitive-rail li {
  position: relative;
  min-height: 220px;
  padding: 30px 26px 22px 0;
  border-right: 1px solid var(--line);
}

.primitive-rail li + li {
  padding-left: 26px;
}

.primitive-rail li:last-child {
  border-right: 0;
}

.primitive-number {
  display: inline-grid;
  width: 34px;
  height: 34px;
  place-items: center;
  border: 1px solid var(--cyan);
  color: var(--cyan);
  font-family: var(--mono);
  font-size: 11px;
  transform: rotate(30deg);
}

.primitive-number::first-line {
  transform: rotate(-30deg);
}

.gate-number {
  border-color: var(--green);
  color: var(--green);
  transform: rotate(45deg);
}

.primitive-rail h3 {
  margin: 24px 0 6px;
  font-size: 18px;
}

.primitive-rail p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.55;
}

.definition-note {
  display: flex;
  margin-top: 32px;
  padding: 20px 0;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.definition-note p {
  max-width: 820px;
  margin: 0;
  color: var(--muted-2);
  font-size: 13px;
}

.definition-note a {
  flex: none;
  color: var(--cyan);
  font-size: 13px;
  font-weight: 750;
}

.model-section,
.atlas-section {
  padding-block: 112px;
  border-block: 1px solid var(--line);
  background:
    linear-gradient(180deg, rgba(16, 27, 47, 0.25), transparent 60%),
    var(--ink-soft);
}

.model-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 300px;
  gap: 26px;
}

.model-main .section-heading {
  margin-bottom: 36px;
}

.graph-stage {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background:
    linear-gradient(rgba(114, 151, 201, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(114, 151, 201, 0.045) 1px, transparent 1px),
    #060b14;
  background-size: 38px 38px;
}

.graph-toolbar {
  position: absolute;
  top: 16px;
  left: 16px;
  z-index: 4;
  display: flex;
  align-items: center;
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  background: rgba(5, 8, 17, 0.86);
  overflow: hidden;
  backdrop-filter: blur(10px);
}

.graph-mode {
  min-height: 42px;
  padding: 0 18px;
  border: 0;
  border-right: 1px solid var(--line);
  background: transparent;
  color: var(--muted);
  font-size: 13px;
  font-weight: 750;
  cursor: pointer;
}

.graph-mode.is-active {
  background: var(--cyan);
  color: var(--ink);
}

.orbit-hint {
  padding: 0 14px;
  color: var(--muted-2);
  font-family: var(--mono);
  font-size: 10px;
}

.graph-zoom-controls {
  display: inline-flex;
  align-self: stretch;
  border-left: 1px solid var(--line);
}

.graph-zoom-controls button {
  min-width: 38px;
  padding: 0 9px;
  border: 0;
  border-left: 1px solid var(--line);
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  font-family: var(--mono);
  font-size: 11px;
}

.graph-zoom-controls button:first-child {
  border-left: 0;
}

.graph-zoom-controls button:hover,
.graph-zoom-controls button:focus-visible {
  background: var(--surface-2);
  color: var(--cyan);
}

#model-graph {
  display: block;
  width: 100%;
  height: 560px;
  min-height: 0;
  cursor: grab;
}

.graph-legend {
  display: grid;
  padding: 16px 22px;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--line);
  color: var(--muted-2);
  font-family: var(--mono);
  font-size: 10px;
}

.graph-legend b {
  color: var(--text);
  font-weight: 650;
}

.model-aside {
  align-self: end;
  min-height: 610px;
  padding: 26px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: var(--surface);
}

.model-aside h3 {
  margin: 25px 0 8px;
  color: var(--cyan);
  font-size: 17px;
}

.model-aside p {
  color: var(--muted);
  font-size: 14px;
}

.model-aside dl {
  margin: 26px 0;
}

.model-aside dl div {
  padding: 14px 0;
  border-top: 1px solid var(--line);
}

.model-aside dt {
  color: var(--text);
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
}

.model-aside dd {
  margin: 5px 0 0;
  color: var(--muted-2);
  font-size: 13px;
}

.model-aside a {
  color: var(--cyan);
  font-size: 13px;
  font-weight: 750;
}

.layer-rail {
  display: grid;
  margin: 58px 0 0;
  padding: 0;
  grid-template-columns: repeat(9, minmax(105px, 1fr));
  list-style: none;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  overflow: hidden;
}

.layer-rail li + li {
  border-left: 1px solid var(--line);
}

.layer-rail button {
  display: flex;
  width: 100%;
  min-height: 184px;
  padding: 20px 14px;
  flex-direction: column;
  align-items: flex-start;
  border: 0;
  background: transparent;
  color: var(--text);
  text-align: left;
  cursor: pointer;
  transition: background 160ms ease, color 160ms ease;
}

.layer-rail button:hover {
  background: var(--surface-2);
  color: var(--cyan);
}

.layer-rail button[aria-pressed="true"] {
  background: linear-gradient(180deg, rgba(97, 228, 255, 0.13), rgba(157, 125, 255, 0.07));
  color: var(--cyan);
  box-shadow: inset 0 -3px 0 var(--cyan);
}

.layer-rail span {
  display: grid;
  width: 30px;
  height: 30px;
  place-items: center;
  border: 1px solid currentColor;
  border-radius: 50%;
  color: var(--cyan);
  font-family: var(--mono);
  font-size: 10px;
}

.layer-rail b {
  margin-top: auto;
  font-size: 14px;
  line-height: 1.3;
}

.layer-rail small {
  margin-top: 6px;
  color: var(--muted-2);
  font-size: 11px;
}

.decision-section {
  padding-block: 112px;
  border-block: 1px solid var(--line);
  background:
    linear-gradient(135deg, rgba(34, 90, 154, 0.18), transparent 46%),
    var(--surface);
}

.decision-flow {
  display: grid;
  margin: 64px 0 0;
  padding: 0;
  grid-template-columns: repeat(4, 1fr);
  list-style: none;
  border-top: 1px solid var(--cyan);
}

.decision-flow li {
  position: relative;
  min-height: 210px;
  padding: 26px 40px 22px 0;
  border-right: 1px solid var(--line);
}

.decision-flow li + li {
  padding-left: 28px;
}

.decision-flow li::before {
  position: absolute;
  top: -5px;
  left: 0;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--cyan);
  content: "";
  box-shadow: 0 0 0 5px rgba(97, 228, 255, 0.1);
}

.decision-flow span,
.decision-outcomes span {
  color: var(--cyan);
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.decision-flow h3 {
  margin: 28px 0 8px;
  font-size: 18px;
}

.decision-flow p,
.decision-outcomes p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.decision-outcomes {
  display: grid;
  margin-top: 12px;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 18px;
}

.decision-outcomes > div {
  padding: 24px 26px;
  border: 1px solid var(--violet);
  border-radius: 9px;
  background: rgba(13, 18, 32, 0.72);
}

.decision-outcomes .positive {
  border-color: var(--cyan);
}

.decision-outcomes strong {
  display: block;
  margin: 7px 0 4px;
  color: var(--violet);
  font-family: var(--mono);
  font-size: 19px;
}

.decision-outcomes .positive strong {
  color: var(--cyan);
}

.paths-section {
  display: grid;
  grid-template-columns: 330px minmax(0, 1fr);
  gap: 84px;
}

.paths-intro {
  position: sticky;
  top: 118px;
  align-self: start;
}

.path-list {
  border-top: 1px solid var(--line-strong);
}

.path-list a {
  display: grid;
  min-height: 150px;
  padding: 24px 0;
  grid-template-columns: 52px 120px minmax(210px, 0.8fr) minmax(240px, 1.2fr) 30px;
  align-items: center;
  gap: 18px;
  border-bottom: 1px solid var(--line);
  transition: padding 160ms ease, background 160ms ease;
}

.path-list a:hover {
  padding-inline: 12px;
  background: linear-gradient(90deg, rgba(97, 228, 255, 0.04), transparent);
  color: var(--text);
}

.path-number {
  color: var(--muted-2);
  font-family: var(--mono);
  font-size: 11px;
}

.path-list b {
  color: var(--cyan);
  font-family: var(--mono);
  font-size: 13px;
}

.path-list strong {
  color: var(--text);
  font-size: 17px;
  line-height: 1.4;
}

.path-list p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.path-list i {
  color: var(--cyan);
  font-size: 22px;
  font-style: normal;
}

.atlas-controls {
  display: grid;
  margin-top: 52px;
  grid-template-columns: minmax(300px, 1.6fr) repeat(4, minmax(130px, 0.58fr));
  gap: 14px;
}

.filter-toggle {
  display: none;
}

.atlas-filter-fields {
  display: contents;
}

.atlas-filter-fields label {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.atlas-controls label:not(.search-field) {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.atlas-controls label > span {
  color: var(--muted-2);
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.search-field {
  position: relative;
  align-self: end;
}

.search-field svg {
  position: absolute;
  top: 50%;
  left: 17px;
  width: 20px;
  transform: translateY(-50%);
  fill: none;
  stroke: var(--muted);
  stroke-width: 1.8;
}

.atlas-controls input,
.atlas-controls select {
  width: 100%;
  height: 52px;
  border: 1px solid var(--line-strong);
  border-radius: 7px;
  background: var(--surface);
  color: var(--text);
  font-size: 14px;
}

.atlas-controls input {
  padding: 0 86px 0 50px;
}

.search-submit {
  position: absolute;
  top: 6px;
  right: 6px;
  height: 40px;
  padding: 0 13px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--surface-2);
  color: var(--text);
  cursor: pointer;
  font-size: 12px;
  font-weight: 750;
}

.search-submit:hover,
.search-submit:focus-visible {
  border-color: var(--cyan);
  color: var(--cyan);
}

.atlas-controls select {
  padding: 0 36px 0 13px;
  appearance: none;
  background-image: linear-gradient(45deg, transparent 50%, var(--muted) 50%), linear-gradient(135deg, var(--muted) 50%, transparent 50%);
  background-position: calc(100% - 17px) 22px, calc(100% - 12px) 22px;
  background-repeat: no-repeat;
  background-size: 5px 5px, 5px 5px;
}

.atlas-controls input:focus-visible,
.atlas-controls select:focus-visible {
  border-color: var(--cyan);
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
  box-shadow: 0 0 0 4px rgba(97, 228, 255, 0.12);
}

.atlas-noscript {
  margin: 24px 0 0;
  padding: 18px;
  border: 1px solid var(--line-strong);
  border-radius: 7px;
  background: var(--surface);
  color: var(--muted);
}

.atlas-noscript a {
  color: var(--cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.atlas-summary {
  display: flex;
  margin-top: 24px;
  align-items: center;
  justify-content: space-between;
  font-family: var(--mono);
  font-size: 12px;
}

.atlas-summary p {
  margin: 0;
  color: var(--cyan);
}

.atlas-summary button {
  border: 0;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
}

.atlas-summary button:hover {
  color: var(--cyan);
}

.atlas-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.atlas-actions button {
  min-height: 36px;
  padding: 0 3px;
}

#copy-view,
#share-view {
  color: var(--text);
}

#copy-view::before {
  content: "↗ ";
  color: var(--cyan);
}

#share-view::before {
  content: "◎ ";
  color: var(--violet);
}

html[lang="de"] .hero h1,
html[lang="es"] .hero h1,
html[lang="fr"] .hero h1,
html[lang="pt-BR"] .hero h1 {
  font-size: clamp(46px, 4.8vw, 78px);
  line-height: 1.02;
}

html:not([lang="en"]) .hero h1 span {
  white-space: normal;
}

.atlas-header,
.resource-row {
  display: grid;
  grid-template-columns: minmax(0, 2.2fr) minmax(140px, 0.8fr) minmax(120px, 0.7fr) minmax(145px, 0.75fr);
  gap: 24px;
}

.atlas-header {
  margin-top: 16px;
  padding: 13px 18px;
  border-block: 1px solid var(--line-strong);
  color: var(--muted-2);
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.atlas-results {
  margin: 0;
  padding: 0;
  border-bottom: 1px solid var(--line-strong);
  list-style: none;
}

.resource-item {
  scroll-margin-top: calc(92px + var(--safe-top));
  border-bottom: 1px solid var(--line);
}

.resource-item:last-child {
  border-bottom: 0;
}

.resource-row {
  width: 100%;
  padding: 22px 18px;
  align-items: center;
  border: 0;
  background: transparent;
  color: var(--text);
  text-align: left;
  cursor: pointer;
  transition: background 140ms ease;
}

.resource-row:hover,
.resource-row[aria-expanded="true"] {
  background: var(--surface);
}

.resource-title {
  display: grid;
  grid-template-columns: max-content minmax(0, 1fr);
  gap: 12px;
}

.resource-type {
  display: inline-flex;
  min-height: 24px;
  padding: 3px 7px;
  align-self: start;
  align-items: center;
  border: 1px solid rgba(157, 125, 255, 0.46);
  border-radius: 999px;
  background: rgba(157, 125, 255, 0.08);
  color: var(--violet);
  font-family: var(--mono);
  font-size: 9px;
  font-weight: 800;
  line-height: 1;
}

.resource-title b {
  display: block;
  font-size: 16px;
  line-height: 1.35;
}

.resource-title small {
  display: block;
  margin-top: 5px;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.45;
}

.resource-meta,
.resource-layer,
.resource-evidence {
  color: var(--muted);
  font-family: var(--mono);
  font-size: 11px;
  line-height: 1.5;
}

.resource-layer {
  color: var(--cyan);
}

.resource-evidence {
  color: var(--green);
}

.resource-details {
  display: grid;
  margin: 0 18px 18px;
  padding: 18px 20px;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 24px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface-2);
}

.resource-details p {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
}

.resource-details a {
  color: var(--cyan);
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 700;
  white-space: nowrap;
}

.resource-detail-actions {
  display: flex;
  align-items: center;
  gap: 14px;
}

.resource-permalink {
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 700;
  white-space: nowrap;
}

.resource-permalink:hover {
  color: var(--violet);
}

.atlas-empty {
  padding: 70px 20px;
  border-bottom: 1px solid var(--line-strong);
  text-align: center;
}

.atlas-empty h3 {
  margin: 0;
  font-size: 20px;
}

.atlas-empty p {
  margin: 8px 0 0;
  color: var(--muted);
}

.atlas-more {
  margin-top: 28px;
  text-align: center;
}

.data-section {
  padding-block: 112px 90px;
  background:
    radial-gradient(circle at 15% 25%, rgba(45, 198, 235, 0.1), transparent 25rem),
    var(--ink);
}

.data-top {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  align-items: center;
  gap: 80px;
}

.download-links {
  display: flex;
  margin-top: 32px;
  flex-direction: column;
  align-items: flex-start;
  gap: 14px;
}

.download-links a {
  display: inline-flex;
  min-width: 220px;
  padding: 10px 0;
  justify-content: space-between;
  border-bottom: 1px solid var(--cyan);
  color: var(--cyan);
  font-family: var(--mono);
  font-size: 13px;
}

.code-window {
  margin: 0;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: #070c16;
  overflow: hidden;
}

.code-label {
  display: inline-block;
  padding: 7px 18px;
  border-right: 1px solid var(--line-strong);
  border-bottom: 1px solid var(--line-strong);
  color: var(--cyan);
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.code-window pre {
  margin: 0;
  padding: 24px;
  overflow-x: auto;
  color: #d9d3ff;
  font: 12px/1.8 var(--mono);
}

.code-muted {
  color: var(--violet);
}

.code-string {
  color: var(--cyan);
}

.schema-row {
  display: grid;
  margin-top: 54px;
  padding: 18px 0;
  grid-template-columns: 0.65fr repeat(6, 1fr);
  border-block: 1px solid var(--line-strong);
  color: var(--muted-2);
  font-family: var(--mono);
  font-size: 10px;
}

.schema-row > * {
  padding: 0 14px;
  border-right: 1px solid var(--line);
}

.schema-row > *:first-child {
  padding-left: 0;
  color: var(--cyan);
  text-transform: uppercase;
}

.schema-row > *:last-child {
  border-right: 0;
}

.schema-row span strong {
  display: block;
  color: var(--text);
  font-weight: 500;
}

.license-panel {
  display: grid;
  margin-top: 40px;
  padding: 32px;
  grid-template-columns: 92px minmax(0, 1fr);
  gap: 28px;
  border: 1px solid rgba(184, 242, 74, 0.28);
  border-radius: var(--radius);
  background: linear-gradient(135deg, rgba(184, 242, 74, 0.08), rgba(97, 228, 255, 0.035));
}

.license-mark {
  display: grid;
  width: 76px;
  height: 76px;
  place-items: center;
  border: 1px solid rgba(184, 242, 74, 0.45);
  border-radius: 50%;
  color: var(--green);
  font-family: var(--display);
  font-size: 20px;
  letter-spacing: 0.04em;
}

.license-panel h2 {
  margin: 0 0 12px;
  font-family: var(--display);
  font-size: clamp(26px, 3vw, 38px);
  line-height: 1;
}

.license-panel p {
  max-width: 980px;
  margin: 0;
  color: var(--text);
  font-size: 14px;
  line-height: 1.7;
}

.license-panel .license-exclusions {
  margin-top: 8px;
  color: var(--muted);
}

.license-panel a {
  display: inline-flex;
  min-height: 44px;
  margin-top: 12px;
  align-items: center;
  gap: 8px;
  color: var(--green);
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
}

.open-links {
  display: grid;
  margin-top: 40px;
  grid-template-columns: repeat(3, 1fr);
  border-block: 1px solid var(--line-strong);
}

.open-links > a {
  display: grid;
  min-height: 220px;
  padding: 34px 30px;
  grid-template-columns: 58px 1fr;
  gap: 22px;
  border-right: 1px solid var(--line);
}

.open-links > a:last-child {
  border-right: 0;
}

.open-links > a:hover {
  background: var(--surface);
  color: var(--text);
}

.open-icon {
  color: var(--cyan);
  font-family: var(--display);
  font-size: 52px;
  line-height: 1;
}

.open-links h3 {
  margin: 0;
  font-size: 19px;
}

.open-links p {
  margin: 8px 0 18px;
  color: var(--muted);
  font-size: 13px;
}

.open-links b {
  color: var(--cyan);
  font-family: var(--mono);
  font-size: 10px;
}

.site-footer {
  padding-block: 42px;
  padding-bottom: max(42px, calc(24px + var(--safe-bottom)));
  border-top: 1px solid var(--line-strong);
  background: #03050b;
}

.footer-grid {
  display: grid;
  grid-template-columns: 260px minmax(280px, 0.9fr) minmax(250px, 0.8fr);
  align-items: center;
  gap: 42px;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 15px;
  letter-spacing: 0.09em;
  line-height: 1.3;
  text-transform: uppercase;
}

.footer-brand img {
  border-radius: 12px;
}

.footer-grid > p {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
}

.footer-links {
  display: flex;
  justify-content: flex-end;
  flex-wrap: wrap;
  gap: 10px 20px;
  font-family: var(--mono);
  font-size: 12px;
}

.footer-meta {
  display: flex;
  padding-top: 24px;
  grid-column: 1 / -1;
  justify-content: flex-end;
  gap: 24px;
  border-top: 1px solid var(--line);
  color: var(--muted-2);
  font-family: var(--mono);
  font-size: 10px;
}

.footer-meta a {
  color: var(--muted);
  text-decoration: underline;
  text-underline-offset: 3px;
}

@media (max-width: 1180px) {
  .hero {
    grid-template-columns: minmax(430px, 0.9fr) minmax(440px, 1.1fr);
  }

  .hero-copy {
    padding-left: 32px;
  }

  .hero h1 {
    font-size: clamp(52px, 6.2vw, 74px);
  }

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

  .model-aside {
    min-height: 0;
  }

  .layer-rail {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1px;
    background: var(--line);
    overflow: hidden;
  }

  .layer-rail li {
    min-width: 0;
    background: var(--ink);
  }

  .layer-rail li + li {
    border-left: 0;
  }

  .layer-rail button {
    min-height: 156px;
  }

  .paths-section {
    grid-template-columns: 270px minmax(0, 1fr);
    gap: 48px;
  }

  .path-list a {
    grid-template-columns: 42px 105px minmax(190px, 0.8fr) minmax(220px, 1.2fr) 25px;
  }

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

  .search-field {
    grid-column: 1 / -1;
  }
}

@media (max-width: 1080px) {
  body.nav-open {
    overflow: hidden;
  }

  .nav-shell {
    position: relative;
  }

  .menu-toggle {
    display: block;
  }

  .nav-links {
    position: absolute;
    top: calc(100% + 1px);
    right: 0;
    left: 0;
    display: none;
    max-height: calc(100dvh - 72px - var(--safe-top));
    padding: 16px;
    overflow-y: auto;
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
    border: 1px solid var(--line-strong);
    border-top: 0;
    border-radius: 0 0 10px 10px;
    background: rgba(5, 8, 17, 0.98);
    overscroll-behavior: contain;
  }

  .nav-links.is-open {
    display: flex;
  }

  .nav-links > a {
    min-height: 48px;
    padding: 10px;
    align-items: center;
  }

  .language-picker {
    width: 100%;
    margin: 4px 0;
  }

  .language-picker select {
    width: 100%;
    min-height: 48px;
  }

  .github-link {
    justify-content: center;
  }
}

@media (max-width: 1000px) {
  .paths-section {
    grid-template-columns: 1fr;
  }

  .paths-intro {
    position: static;
  }

  .paths-art {
    margin-top: 26px;
    max-height: 170px;
    aspect-ratio: 8 / 3;
  }

  .paths-art img {
    object-position: 50% 52%;
  }

  .path-list a {
    grid-template-columns: 42px 110px minmax(0, 1fr) 25px;
  }

  .path-list p {
    display: none;
  }
}

@media (max-width: 920px) {
  :root {
    --shell: min(100% - 32px, 760px);
  }

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

  .hero-copy {
    width: var(--shell);
    margin-inline: auto;
    padding: 80px 0 30px;
  }

  .hero-visual {
    display: grid;
    height: auto;
    min-height: 0;
    grid-template-rows: 520px auto;
  }

  .canvas-key {
    position: static;
    padding: 16px;
    justify-content: center;
    flex-wrap: wrap;
  }

  .split-heading,
  .data-top {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .split-heading > p {
    max-width: 680px;
  }

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

  .primitive-rail li {
    border-bottom: 1px solid var(--line);
  }

  .primitive-rail li:nth-child(2n) {
    border-right: 0;
  }

  .primitive-rail li:last-child {
    grid-column: 1 / -1;
  }

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

  .decision-flow li:nth-child(2) {
    border-right: 0;
  }

  .decision-flow li:nth-child(n+3) {
    border-top: 1px solid var(--line);
  }

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

  .paths-intro {
    position: static;
  }

  .paths-art {
    margin-top: 26px;
    max-height: 150px;
    aspect-ratio: 8 / 3;
  }

  .paths-art img {
    object-position: 50% 52%;
  }

  .path-list a {
    grid-template-columns: 42px 110px minmax(0, 1fr) 25px;
  }

  .path-list p {
    display: none;
  }

  .atlas-controls {
    grid-template-columns: 1fr 1fr;
  }

  .search-field {
    grid-column: 1 / -1;
  }

  .atlas-header,
  .resource-row {
    grid-template-columns: minmax(0, 2fr) minmax(120px, 0.8fr) minmax(110px, 0.7fr);
  }

  .atlas-header span:last-child {
    display: none;
  }

  .resource-evidence {
    display: block;
    grid-column: 2 / -1;
  }

  .schema-row {
    grid-template-columns: repeat(3, 1fr);
    gap: 18px 0;
  }

  .schema-row > *:first-child {
    grid-column: 1 / -1;
  }

  .open-links {
    grid-template-columns: 1fr;
  }

  .open-links > a {
    min-height: 0;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .open-links > a:last-child {
    border-bottom: 0;
  }

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

  .footer-links {
    justify-content: flex-start;
  }
}

@media (max-width: 720px) {
  .graph-stage {
    display: grid;
  }

  .graph-toolbar {
    position: static;
    display: grid;
    margin: 12px;
    padding: 8px;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px;
    overflow: visible;
  }

  .orbit-hint {
    display: none;
  }

  .graph-mode {
    min-width: 0;
    min-height: 44px;
    padding: 0 10px;
    border: 1px solid var(--line);
    border-radius: 6px;
    white-space: nowrap;
  }

  .graph-zoom-controls {
    display: grid;
    min-width: 0;
    min-height: 44px;
    grid-column: 1 / -1;
    grid-template-columns: 44px minmax(80px, 1fr) 44px;
    border: 0;
    gap: 8px;
  }

  .graph-zoom-controls button {
    min-width: 44px;
    min-height: 44px;
    padding: 0 10px;
    border: 1px solid var(--line);
    border-radius: 6px;
  }

  .graph-zoom-controls button:first-child {
    border-left: 1px solid var(--line);
  }

  #model-graph {
    height: 600px;
  }
}

@media (max-width: 620px) {
  :root {
    --shell: calc(100% - 28px);
  }

  .brand span {
    max-width: 180px;
    white-space: normal;
    line-height: 1.2;
  }

  .brand {
    min-height: 44px;
  }

  .nav-links > a {
    display: flex;
  }

  .language-picker {
    display: grid;
    min-height: 0;
    padding: 8px 10px 10px;
    gap: 6px;
  }

  .language-picker::before {
    display: none;
  }

  .language-picker-label.sr-only {
    position: static;
    width: auto;
    height: auto;
    margin: 0;
    overflow: visible;
    clip: auto;
    white-space: normal;
    color: var(--muted-2);
    font-family: var(--mono);
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
  }

  .language-picker select {
    height: 48px;
    padding-left: 13px;
    font-size: 16px;
  }

  .hero-copy {
    padding-top: 64px;
  }

  .paths-art {
    margin-top: 22px;
    aspect-ratio: 2.65 / 1;
  }

  .hero h1 {
    font-size: clamp(45px, 14vw, 62px);
  }

  html:not([lang="en"]) .hero h1 {
    font-size: clamp(39px, 11vw, 48px);
    line-height: 1.05;
  }

  html[lang="zh-Hans"] .hero h1,
  html[lang="ja"] .hero h1,
  html[lang="ko"] .hero h1 {
    font-size: clamp(40px, 11.5vw, 46px);
    letter-spacing: -0.025em;
  }

  .hero h1 span {
    white-space: normal;
  }

  .hero-lede {
    font-size: 17px;
  }

  .hero-actions {
    display: grid;
  }

  .hero-proof a {
    min-height: 44px;
    padding: 7px 11px;
  }

  .collision-note a,
  .definition-note a {
    display: inline-flex;
    min-height: 44px;
    align-items: center;
  }

  .hero-visual {
    min-height: 0;
    grid-template-rows: 440px auto;
  }

  .canvas-key {
    gap: 11px;
    font-size: 10px;
  }

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

  .layer-rail li:last-child:nth-child(odd) {
    grid-column: 1 / -1;
  }

  .layer-rail button {
    min-height: 150px;
  }

  .primitives,
  .layers-section,
  .paths-section,
  .model-section,
  .decision-section,
  .atlas-section,
  .data-section {
    padding-block: 78px;
  }

  .section-heading h2,
  .paths-intro h2 {
    font-size: clamp(39px, 12vw, 54px);
  }

  .primitive-rail {
    grid-template-columns: 1fr;
  }

  .primitive-rail li,
  .primitive-rail li + li {
    min-height: 0;
    padding: 24px 0;
    border-right: 0;
  }

  .primitive-rail li:last-child {
    grid-column: auto;
  }

  .definition-note {
    align-items: flex-start;
    flex-direction: column;
  }

  .graph-legend {
    grid-template-columns: 1fr;
    gap: 10px;
    font-size: 11px;
  }

  .decision-flow,
  .decision-outcomes {
    grid-template-columns: 1fr;
  }

  .decision-flow li,
  .decision-flow li + li {
    min-height: 0;
    padding: 24px 0;
    border-top: 0;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .path-list a {
    min-height: 135px;
    grid-template-columns: 32px 1fr 22px;
    gap: 12px;
  }

  .path-list b {
    grid-column: 2;
  }

  .path-list strong {
    grid-column: 2;
  }

  .path-list i {
    grid-column: 3;
    grid-row: 1 / 3;
  }

  .path-number {
    grid-row: 1 / 3;
  }

  .atlas-controls {
    grid-template-columns: 1fr;
  }

  .atlas-controls input,
  .atlas-controls select {
    font-size: 16px;
  }

  .filter-toggle {
    display: flex;
    min-height: 48px;
    padding: 0 14px;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    border: 1px solid var(--line-strong);
    border-radius: 7px;
    background: var(--surface);
    color: var(--text);
    cursor: pointer;
    font-weight: 750;
  }

  .filter-toggle[aria-expanded="true"] > span:last-child {
    transform: rotate(180deg);
  }

  .filter-count {
    margin-left: auto;
    color: var(--cyan);
    font-family: var(--mono);
    font-size: 11px;
    font-weight: 650;
  }

  .atlas-filter-fields {
    display: none;
    grid-template-columns: 1fr;
    gap: 14px;
  }

  .atlas-filter-fields.is-open {
    display: grid;
  }

  .search-field,
  .atlas-controls label:last-child {
    grid-column: auto;
  }

  .atlas-header {
    display: none;
  }

  .atlas-results {
    margin-top: 18px;
    border-top: 1px solid var(--line-strong);
  }

  .resource-row {
    padding-inline: 4px;
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .resource-meta,
  .resource-layer,
  .resource-evidence {
    display: inline-flex;
    width: fit-content;
    max-width: 100%;
    min-height: 28px;
    margin-left: 0;
    padding: 4px 8px;
    align-items: center;
    border: 1px solid var(--line);
    border-radius: 999px;
  }

  .resource-row[aria-expanded="false"] .resource-title small {
    display: -webkit-box;
    overflow: hidden;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
  }

  .resource-evidence {
    grid-column: auto;
  }

  .atlas-summary {
    align-items: flex-start;
    flex-direction: column;
    gap: 12px;
  }

  .atlas-actions {
    width: 100%;
    flex-wrap: wrap;
    justify-content: flex-start;
  }

  .atlas-actions button {
    min-height: 44px;
    padding: 0 10px;
  }

  .resource-details {
    margin: 0 0 18px;
    grid-template-columns: 1fr;
  }

  .resource-detail-actions {
    align-items: flex-start;
    flex-direction: column;
    gap: 4px;
  }

  .resource-details a,
  .resource-permalink {
    display: inline-flex;
    min-height: 44px;
    padding: 0 4px;
    align-items: center;
  }

  .data-top {
    gap: 38px;
  }

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

  .open-links > a {
    padding: 28px 8px;
    grid-template-columns: 44px 1fr;
  }

  .license-panel {
    padding: 24px 18px;
    grid-template-columns: 1fr;
    gap: 18px;
  }

  .license-mark {
    width: 62px;
    height: 62px;
    font-size: 17px;
  }

  .open-icon {
    font-size: 42px;
  }

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

  .footer-links,
  .footer-meta {
    justify-content: flex-start;
    flex-wrap: wrap;
  }

  .footer-links a {
    display: inline-flex;
    min-height: 44px;
    align-items: center;
  }

  .footer-meta {
    grid-column: auto;
  }
}

@media (max-width: 920px) and (max-height: 500px) and (orientation: landscape) {
  html {
    scroll-padding-top: calc(76px + var(--safe-top));
  }

  .nav-shell {
    min-height: 60px;
  }

  .nav-links {
    max-height: calc(100dvh - 60px - var(--safe-top));
  }

  .hero-copy {
    padding-top: 38px;
    padding-bottom: 24px;
  }

  .hero h1 {
    font-size: clamp(42px, 8vw, 58px);
  }

  .hero-lede {
    margin-top: 20px;
    font-size: 16px;
  }

  .hero-actions,
  .hero-proof {
    margin-top: 22px;
  }

  .hero-visual {
    min-height: 0;
    grid-template-rows: 320px auto;
  }

  #model-graph {
    height: 500px;
  }

  .paths-art {
    display: none;
  }

  .primitives,
  .layers-section,
  .paths-section,
  .model-section,
  .decision-section,
  .atlas-section,
  .data-section {
    padding-block: 64px;
  }
}

@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 {
  .site-nav,
  .hero-visual,
  .graph-stage,
  .atlas-controls,
  .atlas-summary,
  .atlas-more {
    display: none !important;
  }

  body {
    background: #fff;
    color: #111;
  }

  .hero {
    display: block;
    min-height: 0;
  }
}