:root {
  color-scheme: light;
  --bg: #f8faf6;
  --surface: #ffffff;
  --surface-2: #edf4ea;
  --text: #16251d;
  --muted: #5f6f65;
  --line: #d9e3d7;
  --green: #005030;
  --green-2: #087447;
  --orange: #f47321;
  --orange-2: #b84e13;
  --teal: #237b82;
  --gold: #d9a441;
  --shadow: 0 22px 60px rgba(0, 80, 48, 0.13);
}

[data-theme="dark"] {
  color-scheme: dark;
  --bg: #101712;
  --surface: #16231b;
  --surface-2: #1d2e24;
  --text: #eef7ef;
  --muted: #b6c8ba;
  --line: #2e4939;
  --green: #4ac487;
  --green-2: #2da66b;
  --orange: #ff9046;
  --orange-2: #ffb06f;
  --teal: #6bc5ca;
  --gold: #edc76b;
  --shadow: 0 22px 60px rgba(0, 0, 0, 0.35);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background:
    radial-gradient(circle at 20% 0%, color-mix(in srgb, var(--orange) 10%, transparent), transparent 24rem),
    linear-gradient(180deg, var(--bg), color-mix(in srgb, var(--surface-2) 55%, var(--bg)));
  color: var(--text);
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.6;
}

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

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

.skip-link {
  position: absolute;
  left: 1rem;
  top: -4rem;
  z-index: 20;
  background: var(--orange);
  color: #1b120b;
  padding: 0.75rem 1rem;
  border-radius: 6px;
}

.skip-link:focus {
  top: 1rem;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: color-mix(in srgb, var(--surface) 88%, transparent);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(18px);
}

.nav-shell {
  width: min(1180px, calc(100% - 2rem));
  min-height: 76px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 1rem;
}

.brand,
.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  font-weight: 800;
}

.brand img,
.footer-brand img {
  border-radius: 8px;
  object-fit: contain;
  background: #ffffff;
}

.brand span {
  display: grid;
  line-height: 1.05;
}

.brand small {
  color: var(--muted);
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0;
}

.nav-links {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.15rem;
}

.nav-links a {
  color: var(--muted);
  padding: 0.55rem 0.72rem;
  border-radius: 6px;
  font-size: 0.92rem;
  font-weight: 700;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--text);
  background: var(--surface-2);
}

.theme-toggle,
.button,
.icon-button {
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--surface);
  color: var(--text);
  font: inherit;
}

.theme-toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.45rem 0.65rem;
  cursor: pointer;
  font-weight: 800;
}

.toggle-track {
  width: 42px;
  height: 24px;
  border-radius: 999px;
  background: var(--surface-2);
  border: 1px solid var(--line);
  padding: 2px;
}

.toggle-thumb {
  width: 18px;
  height: 18px;
  display: block;
  border-radius: 50%;
  background: var(--orange);
  transform: translateX(0);
  transition: transform 160ms ease;
}

[data-theme="dark"] .toggle-thumb {
  transform: translateX(18px);
}

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 4px;
  cursor: pointer;
}

.nav-toggle span {
  width: 18px;
  height: 2px;
  background: var(--text);
}

.hero,
.page-hero,
.band,
.content-grid,
.lesson-layout {
  width: min(1180px, calc(100% - 2rem));
  margin: 0 auto;
}

.hero {
  min-height: 760px;
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(340px, 0.95fr);
  align-items: center;
  gap: 3.5rem;
  padding: 4rem 0;
}

.hero h1,
.page-hero h1,
.section-heading h2,
.band h2 {
  margin: 0;
  font-family: "Source Serif 4", Georgia, serif;
  line-height: 1.02;
}

.hero h1 {
  max-width: 760px;
  font-size: clamp(3.2rem, 7vw, 6.5rem);
}

.page-hero {
  padding: 6rem 0 3rem;
}

.page-hero.narrow {
  max-width: 880px;
}

.page-hero h1 {
  max-width: 920px;
  font-size: clamp(2.7rem, 6vw, 5.2rem);
}

.page-hero p:not(.eyebrow),
.lede {
  max-width: 760px;
  color: var(--muted);
  font-size: clamp(1.05rem, 2vw, 1.24rem);
}

.eyebrow {
  margin: 0 0 0.75rem;
  color: var(--orange);
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0;
  text-transform: uppercase;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 2rem;
}

.button {
  min-height: 46px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1rem;
  font-weight: 850;
}

.button.primary {
  background: var(--green);
  border-color: var(--green);
  color: #ffffff;
}

[data-theme="dark"] .button.primary {
  color: #08150d;
}

.button.secondary:hover,
.resource-card:hover,
.path-item:hover,
.workflow-card:hover {
  border-color: color-mix(in srgb, var(--orange) 60%, var(--line));
}

.hero-visual {
  position: relative;
  min-height: 520px;
  display: grid;
  place-items: center;
  overflow: hidden;
}

.hero-visual::before {
  content: "";
  position: absolute;
  width: min(88%, 500px);
  aspect-ratio: 1;
  border: 1px solid color-mix(in srgb, var(--green) 36%, transparent);
  border-radius: 50%;
}

.hero-visual::after {
  content: "";
  position: absolute;
  width: min(68%, 390px);
  aspect-ratio: 1;
  border: 1px dashed color-mix(in srgb, var(--orange) 42%, transparent);
  border-radius: 50%;
}

.hero-visual img {
  position: relative;
  z-index: 1;
  width: min(320px, 72%);
  padding: 1.2rem;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.orbit-card {
  position: absolute;
  z-index: 2;
  min-width: 112px;
  padding: 0.62rem 0.75rem;
  border: 1px solid var(--line);
  border-left: 4px solid var(--orange);
  border-radius: 6px;
  background: color-mix(in srgb, var(--surface) 94%, transparent);
  box-shadow: var(--shadow);
  color: var(--text);
  font-weight: 900;
  text-align: center;
}

.orbit-card.one { top: 15%; left: 5%; }
.orbit-card.two { top: 12%; right: 5%; border-left-color: var(--green); }
.orbit-card.three { bottom: 17%; left: 2%; border-left-color: var(--teal); }
.orbit-card.four { bottom: 14%; right: 7%; border-left-color: var(--gold); }

.band {
  margin-top: 2rem;
  padding: 3rem;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.band.split {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(320px, 1.1fr);
  gap: 2.5rem;
  align-items: start;
}

.band p,
.lesson-section p {
  color: var(--muted);
}

.section-heading {
  margin-bottom: 1.4rem;
}

.section-heading h2,
.band h2 {
  font-size: clamp(2rem, 4vw, 3.2rem);
}

.content-grid {
  padding: 4rem 0;
}

.fact-grid,
.gallery-grid,
.metric-grid,
.two-column,
.example-grid,
.forcefield-grid,
.glossary-grid {
  display: grid;
  gap: 1rem;
}

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

.fact-card,
.gallery-card,
.metric-grid article,
.two-column article,
.example-card,
.force-card,
.glossary-grid article,
.workflow-card,
.resource-card,
.citation-box,
.callout {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.fact-card {
  padding: 1.1rem;
}

.fact-card p,
.workflow-card p:first-child,
.example-card p,
.force-card p {
  margin: 0 0 0.45rem;
  color: var(--orange);
  font-size: 0.75rem;
  font-weight: 900;
  text-transform: uppercase;
}

.fact-card h3 {
  margin: 0;
  font-size: 1.3rem;
}

.fact-card span,
.example-card span,
.force-card span,
.force-card small {
  display: block;
  color: var(--muted);
}

.path-list,
.workflow-list,
.resource-list,
.run-list {
  display: grid;
  gap: 0.8rem;
}

.path-item,
.workflow-card,
.resource-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: color-mix(in srgb, var(--surface) 84%, var(--surface-2));
  transition: transform 160ms ease, border-color 160ms ease;
}

.path-item {
  display: grid;
  grid-template-columns: 58px 1fr;
  gap: 1rem;
  padding: 1.1rem;
}

.path-item:hover,
.workflow-card:hover,
.resource-card:hover {
  transform: translateY(-2px);
}

.path-item span {
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--green);
  color: #ffffff;
  font-weight: 900;
}

[data-theme="dark"] .path-item span {
  color: #07150d;
}

.path-item h3,
.gallery-card h3,
.workflow-card h2,
.example-card h2,
.force-card h2,
.metric-grid h2,
.glossary-grid h2,
.resource-card h2,
.citation-box h2,
.lesson-section h2 {
  margin: 0 0 0.35rem;
  line-height: 1.2;
}

.path-item p,
.gallery-card p,
.workflow-card > p,
.resource-card p,
.citation-box p {
  margin: 0;
  color: var(--muted);
}

.timeline {
  display: grid;
  gap: 0.65rem;
}

.timeline a {
  display: grid;
  grid-template-columns: 90px 1fr auto;
  gap: 0.8rem;
  align-items: center;
  padding: 0.9rem;
  background: var(--surface-2);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.timeline span {
  color: var(--orange);
  font-weight: 900;
  text-transform: uppercase;
}

.timeline small {
  color: var(--muted);
}

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

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

.gallery-card {
  overflow: hidden;
  box-shadow: 0 12px 34px color-mix(in srgb, var(--green) 9%, transparent);
}

.gallery-card img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: contain;
  background: #ffffff;
  border-bottom: 1px solid var(--line);
}

.gallery-card div {
  padding: 1rem;
}

.lesson-layout {
  display: grid;
  grid-template-columns: 240px minmax(0, 1fr);
  gap: 2rem;
  padding: 2rem 0 5rem;
}

.lesson-sidebar {
  position: sticky;
  top: 96px;
  align-self: start;
  display: grid;
  gap: 0.4rem;
}

.lesson-sidebar a {
  padding: 0.65rem 0.8rem;
  border-radius: 6px;
  color: var(--muted);
  font-weight: 800;
}

.lesson-sidebar a:hover,
.lesson-sidebar a.active {
  background: var(--surface-2);
  color: var(--text);
}

.lesson-body {
  display: grid;
  gap: 1rem;
  min-width: 0;
}

.lesson-section {
  padding: 1.5rem;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  min-width: 0;
}

.callout {
  padding: 1.1rem;
  border-left: 4px solid var(--orange);
  color: var(--muted);
}

.callout strong {
  color: var(--text);
}

.callout.tall {
  min-height: 100%;
  display: grid;
  align-content: center;
  font-size: 1.2rem;
}

.concept-strip,
.pill-grid,
.output-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.concept-strip span,
.pill-grid span,
.output-list code {
  padding: 0.45rem 0.65rem;
  border-radius: 999px;
  background: var(--surface-2);
  border: 1px solid var(--line);
  color: var(--text);
  font-size: 0.9rem;
  font-weight: 750;
}

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

.two-column article,
.metric-grid article,
.example-card {
  padding: 1.2rem;
}

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

.force-card {
  padding: 1.2rem;
}

.force-card.featured {
  border-top: 5px solid var(--orange);
}

.force-card ul {
  margin: 0 0 1rem;
  padding-left: 1.15rem;
  color: var(--muted);
}

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

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

.example-card strong {
  display: block;
  margin-bottom: 0.55rem;
}

.examples-guide {
  display: grid;
  gap: 1.4rem;
  padding-top: 2rem;
}

.example-start,
.quick-install-panel,
.example-walkthrough,
.troubleshooting-panel {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: 0 14px 38px color-mix(in srgb, var(--green) 8%, transparent);
}

.example-start {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(360px, 1fr);
  gap: 1.5rem;
  align-items: start;
  padding: 1.5rem;
}

.example-start h2,
.example-walkthrough h2,
.troubleshooting-panel h2 {
  margin: 0 0 0.5rem;
  font-family: "Source Serif 4", Georgia, serif;
  line-height: 1.06;
  font-size: clamp(1.8rem, 3vw, 2.8rem);
}

.example-start p,
.quick-install-panel p,
.example-walkthrough p,
.troubleshooting-panel p {
  margin: 0;
  color: var(--muted);
}

.quick-install-panel {
  display: grid;
  grid-template-columns: minmax(280px, 0.45fr) minmax(0, 1fr);
  gap: 1.4rem;
  align-items: stretch;
  padding: 1.5rem;
  border-top: 5px solid var(--orange);
}

.quick-install-panel > * {
  min-height: 0;
}

.quick-install-copy {
  display: grid;
  align-content: start;
  gap: 0.85rem;
}

.quick-install-copy h2 {
  margin: 0;
  font-family: "Source Serif 4", Georgia, serif;
  line-height: 1.06;
  font-size: clamp(2rem, 4vw, 3.4rem);
}

.install-guards {
  display: grid;
  gap: 0.5rem;
  margin-top: 0.35rem;
}

.install-guards span {
  padding: 0.62rem 0.75rem;
  background: color-mix(in srgb, var(--green) 8%, var(--surface));
  border: 1px solid color-mix(in srgb, var(--green) 28%, var(--line));
  border-left: 4px solid var(--green);
  border-radius: 8px;
  color: var(--text);
  font-size: 0.92rem;
  font-weight: 750;
}

.example-jump {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.75rem;
}

.example-jump a {
  min-height: 132px;
  display: grid;
  align-content: start;
  gap: 0.3rem;
  padding: 1rem;
  background: color-mix(in srgb, var(--surface) 82%, var(--surface-2));
  border: 1px solid var(--line);
  border-top: 4px solid var(--orange);
  border-radius: 8px;
  transition: transform 160ms ease, border-color 160ms ease;
}

.example-jump a:hover {
  transform: translateY(-2px);
  border-color: color-mix(in srgb, var(--orange) 60%, var(--line));
}

.example-jump span {
  color: var(--orange);
  font-size: 0.76rem;
  font-weight: 950;
  text-transform: uppercase;
}

.example-jump strong {
  line-height: 1.2;
}

.example-jump small {
  color: var(--muted);
}

.example-walkthrough {
  overflow: hidden;
}

.example-walkthrough-head {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 260px;
  gap: 1rem;
  align-items: start;
  padding: 1.5rem;
  background: linear-gradient(90deg, color-mix(in srgb, var(--surface-2) 76%, var(--surface)), var(--surface));
  border-bottom: 1px solid var(--line);
}

.example-walkthrough-head aside {
  display: grid;
  gap: 0.35rem;
  padding: 1rem;
  background: var(--surface);
  border: 1px solid var(--line);
  border-left: 4px solid var(--orange);
  border-radius: 8px;
}

.example-walkthrough-head aside span {
  color: var(--muted);
  font-weight: 750;
}

.example-brief {
  display: grid;
  grid-template-columns: minmax(260px, 0.45fr) minmax(0, 1fr);
  gap: 1rem;
  padding: 1.2rem 1.5rem;
  border-bottom: 1px solid var(--line);
}

.example-brief section,
.beginner-checks,
.trouble-grid article {
  padding: 1rem;
  background: var(--surface-2);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.example-brief h3,
.example-step h3,
.beginner-checks h3,
.trouble-grid h3 {
  margin: 0 0 0.45rem;
  line-height: 1.2;
}

.file-list {
  display: grid;
  gap: 0.5rem;
}

.file-list div {
  display: grid;
  grid-template-columns: minmax(190px, 0.5fr) minmax(0, 1fr);
  gap: 0.7rem;
  align-items: start;
  padding: 0.65rem 0.75rem;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
}

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

.example-steps {
  display: grid;
}

.example-step {
  display: grid;
  grid-template-columns: 52px minmax(0, 1fr);
  gap: 1rem;
  padding: 1.4rem 1.5rem;
  border-bottom: 1px solid var(--line);
}

.step-marker {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--green);
  color: #ffffff;
  font-weight: 950;
}

[data-theme="dark"] .step-marker {
  color: #07150d;
}

.step-body {
  min-width: 0;
}

.command-card {
  min-width: 0;
  margin-top: 0.85rem;
  overflow: hidden;
  background: #142017;
  border: 1px solid color-mix(in srgb, var(--green) 55%, #142017);
  border-radius: 8px;
}

.command-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.75rem;
  padding: 0.55rem 0.7rem;
  background: #0e1711;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}

.command-head span {
  color: #d7eadc;
  font-size: 0.78rem;
  font-weight: 900;
  text-transform: uppercase;
}

.command-head button {
  min-height: 32px;
  padding: 0.35rem 0.6rem;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 6px;
  background: var(--orange);
  color: #211205;
  font: inherit;
  font-size: 0.82rem;
  font-weight: 900;
  cursor: pointer;
}

.command-card pre {
  margin: 0;
  border-radius: 0;
  border: 0;
  font-size: 0.9rem;
}

.command-card-large {
  height: 100%;
  display: flex;
  flex-direction: column;
  margin-top: 0;
  min-height: 0;
  contain: size layout;
}

.command-card-large pre {
  flex: 1 1 auto;
  min-height: 0;
  height: auto;
  max-height: none;
  overflow: auto;
  scrollbar-color: var(--orange) #0e1711;
  scrollbar-width: thin;
}

.command-card-large pre::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}

.command-card-large pre::-webkit-scrollbar-track {
  background: #0e1711;
}

.command-card-large pre::-webkit-scrollbar-thumb {
  background: var(--orange);
  border: 2px solid #0e1711;
  border-radius: 999px;
}

.expected-output {
  display: flex;
  gap: 0.5rem;
  margin-top: 0.75rem;
  padding: 0.8rem 0.9rem;
  background: color-mix(in srgb, var(--green) 8%, var(--surface));
  border: 1px solid color-mix(in srgb, var(--green) 28%, var(--line));
  border-left: 4px solid var(--green);
  border-radius: 8px;
}

.expected-output span {
  color: var(--muted);
}

.beginner-checks {
  margin: 1.2rem 1.5rem 1.5rem;
  border-left: 4px solid var(--orange);
}

.beginner-checks ul {
  margin: 0;
  padding-left: 1.25rem;
  color: var(--muted);
}

.beginner-checks li + li {
  margin-top: 0.35rem;
}

.troubleshooting-panel {
  display: grid;
  gap: 1rem;
  padding: 1.5rem;
}

.trouble-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.85rem;
}

.trouble-grid pre {
  font-size: 0.86rem;
}

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

.glossary-grid article {
  padding: 1rem;
}

.glossary-grid p {
  margin: 0;
  color: var(--muted);
}

.workflow-card {
  display: grid;
  grid-template-columns: minmax(210px, 0.35fr) minmax(0, 1fr) auto;
  align-items: center;
  gap: 1.2rem;
  padding: 1.2rem;
}

code,
pre {
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
}

code {
  color: var(--orange-2);
  overflow-wrap: anywhere;
}

pre {
  overflow-x: auto;
  max-width: 100%;
  margin: 0.75rem 0 0;
  padding: 1rem;
  border-radius: 8px;
  background: #142017;
  color: #f5fff7;
}

pre code {
  color: inherit;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

.text-link {
  color: var(--green);
  font-weight: 900;
  white-space: nowrap;
}

.resource-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.2rem;
}

.resource-card span {
  color: var(--orange);
  font-weight: 900;
}

.docs-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.docs-card {
  min-height: 220px;
  display: grid;
  align-content: start;
  gap: 0.55rem;
  padding: 1.2rem;
  background: var(--surface);
  border: 1px solid var(--line);
  border-top: 5px solid var(--orange);
  border-radius: 8px;
  box-shadow: 0 12px 34px color-mix(in srgb, var(--green) 8%, transparent);
  transition: transform 160ms ease, border-color 160ms ease;
}

.docs-card:hover {
  transform: translateY(-2px);
  border-color: color-mix(in srgb, var(--orange) 62%, var(--line));
}

.docs-card span {
  color: var(--orange);
  font-size: 0.76rem;
  font-weight: 950;
  text-transform: uppercase;
}

.docs-card h2 {
  margin: 0;
  line-height: 1.15;
}

.docs-card p {
  margin: 0;
  color: var(--muted);
}

.docs-layout .lesson-sidebar {
  top: 96px;
}

.docs-section {
  display: grid;
  gap: 0.85rem;
}

.docs-section h2 {
  margin-bottom: 0;
}

.docs-section .command-card {
  margin-top: 0;
}

.docs-table-wrap {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: 8px;
}

.docs-table {
  width: 100%;
  min-width: 620px;
  border-collapse: collapse;
  background: var(--surface);
}

.docs-table th,
.docs-table td {
  padding: 0.82rem 0.9rem;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

.docs-table th {
  background: var(--surface-2);
  color: var(--green);
  font-size: 0.78rem;
  font-weight: 950;
  text-transform: uppercase;
}

.docs-table tr:last-child td {
  border-bottom: 0;
}

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

.docs-table td:first-child {
  color: var(--text);
  font-weight: 800;
}

.docs-link-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
}

.engine-summary {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.85rem;
}

.engine-summary article {
  min-height: 150px;
  display: grid;
  align-content: start;
  gap: 0.45rem;
  padding: 1.1rem;
  background: var(--surface-2);
  border: 1px solid var(--line);
  border-top: 4px solid var(--orange);
  border-radius: 8px;
}

.engine-summary span,
.engine-card-head p,
.engine-card-body h3 {
  margin: 0;
  color: var(--orange);
  font-size: 0.76rem;
  font-weight: 950;
  text-transform: uppercase;
}

.engine-summary small {
  color: var(--muted);
}

.engine-flow {
  display: grid;
  gap: 1rem;
}

.engine-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 12px 34px color-mix(in srgb, var(--green) 8%, transparent);
}

.engine-card-head {
  display: grid;
  grid-template-columns: 58px minmax(0, 1fr);
  gap: 1rem;
  align-items: start;
  padding: 1.15rem;
  background: color-mix(in srgb, var(--surface-2) 70%, var(--surface));
  border-bottom: 1px solid var(--line);
}

.engine-card-head > span {
  width: 46px;
  height: 46px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--green);
  color: #ffffff;
  font-weight: 950;
}

[data-theme="dark"] .engine-card-head > span {
  color: #07150d;
}

.engine-card-head h2 {
  margin: 0 0 0.25rem;
  line-height: 1.2;
}

.engine-card-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.25fr) minmax(0, 1fr);
  gap: 1rem;
  padding: 1.15rem;
}

.engine-card-body section {
  min-width: 0;
}

.engine-card-body pre {
  margin-top: 0.45rem;
  font-size: 0.82rem;
}

.engine-card-body p {
  margin: 0.45rem 0 0;
  color: var(--muted);
}

.stage-link-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.85rem;
}

.stage-link-grid a {
  display: grid;
  gap: 0.35rem;
  min-height: 150px;
  padding: 1rem;
  background: var(--surface-2);
  border: 1px solid var(--line);
  border-top: 4px solid var(--orange);
  border-radius: 8px;
  transition: transform 160ms ease, border-color 160ms ease;
}

.stage-link-grid a:hover {
  transform: translateY(-2px);
  border-color: color-mix(in srgb, var(--orange) 62%, var(--line));
}

.stage-link-grid span {
  color: var(--orange);
  font-size: 0.78rem;
  font-weight: 950;
  text-transform: uppercase;
}

.stage-link-grid strong {
  font-size: 1.08rem;
}

.stage-link-grid small {
  color: var(--muted);
  font-size: 0.92rem;
}

.stage-specs {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.85rem;
}

.stage-specs article {
  min-height: 118px;
  padding: 1rem;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.stage-specs span {
  display: block;
  margin-bottom: 0.45rem;
  color: var(--orange);
  font-size: 0.75rem;
  font-weight: 950;
  text-transform: uppercase;
}

.stage-specs strong {
  line-height: 1.25;
}

.teaching-list {
  margin: 0;
  padding-left: 1.35rem;
  color: var(--muted);
}

.teaching-list li + li {
  margin-top: 0.55rem;
}

.warning-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.75rem;
}

.warning-grid article {
  padding: 1rem;
  background: color-mix(in srgb, var(--orange) 8%, var(--surface));
  border: 1px solid color-mix(in srgb, var(--orange) 35%, var(--line));
  border-radius: 8px;
  color: var(--muted);
}

.check-bullets {
  margin: 0;
  padding-left: 1.25rem;
  color: var(--muted);
}

.check-bullets li + li {
  margin-top: 0.45rem;
}

.check-list,
.check-grid {
  display: grid;
  gap: 0.7rem;
}

.check-list span,
.check-grid article {
  padding: 0.9rem 1rem;
  background: var(--surface-2);
  border: 1px solid var(--line);
  border-left: 4px solid var(--green);
  border-radius: 8px;
  color: var(--text);
  font-weight: 750;
}

.check-grid {
  grid-template-columns: repeat(5, minmax(0, 1fr));
}

.run-card {
  display: grid;
  grid-template-columns: 52px minmax(0, 1fr);
  gap: 1rem;
  padding: 1.2rem;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.run-card > span {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--orange);
  color: #211205;
  font-weight: 950;
}

.run-card h2 {
  margin: 0 0 0.35rem;
}

.run-card p {
  margin: 0;
  color: var(--muted);
}

.citation-box {
  margin-top: 1rem;
  padding: 1.3rem;
}

.site-footer {
  margin-top: 3rem;
  background: #0f1f16;
  color: #f4fbf5;
}

.footer-grid,
.footer-bottom {
  width: min(1180px, calc(100% - 2rem));
  margin: 0 auto;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 0.7fr 0.7fr;
  gap: 2rem;
  padding: 3rem 0;
}

.footer-grid p {
  max-width: 560px;
  color: #bdd0c3;
}

.footer-grid h2 {
  margin: 0 0 0.8rem;
  font-size: 0.85rem;
  color: var(--orange);
  text-transform: uppercase;
}

.footer-grid a:not(.footer-brand) {
  display: block;
  color: #dfeee4;
  margin: 0.35rem 0;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 0 1.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.13);
  color: #bdd0c3;
  font-size: 0.9rem;
}

@media (max-width: 980px) {
  .nav-shell {
    grid-template-columns: auto auto auto;
  }

  .nav-toggle {
    display: inline-flex;
    justify-self: end;
  }

  .nav-links {
    position: absolute;
    inset: 76px 1rem auto 1rem;
    display: none;
    flex-direction: column;
    align-items: stretch;
    padding: 0.75rem;
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: 8px;
    box-shadow: var(--shadow);
  }

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

  .theme-toggle {
    justify-self: end;
  }

  .hero,
  .band.split,
  .lesson-layout {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
  }

  .hero-visual {
    min-height: 420px;
  }

  .fact-grid,
  .forcefield-grid,
  .metric-grid,
  .example-grid,
  .docs-grid,
  .example-jump,
  .trouble-grid,
  .glossary-grid,
  .check-grid,
  .stage-link-grid,
  .stage-specs,
  .warning-grid,
  .engine-summary {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .workflow-card {
    grid-template-columns: 1fr;
  }

  .example-start,
  .quick-install-panel,
  .example-walkthrough-head,
  .example-brief {
    grid-template-columns: 1fr;
  }

  .engine-card-body {
    grid-template-columns: 1fr;
  }

  .lesson-sidebar {
    position: static;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  }
}

@media (max-width: 680px) {
  .nav-shell {
    width: min(100% - 1rem, 1180px);
    gap: 0.5rem;
  }

  .brand small,
  .theme-toggle span[data-theme-label] {
    display: none;
  }

  .hero,
  .page-hero,
  .band,
  .content-grid,
  .lesson-layout,
  .footer-grid,
  .footer-bottom {
    width: min(100% - 1rem, 1180px);
  }

  .hero {
    padding-top: 2.5rem;
    min-height: auto;
  }

  .page-hero {
    padding: 3rem 0 2rem;
  }

  .hero h1 {
    font-size: 3rem;
  }

  .hero-visual {
    min-height: 330px;
  }

  .orbit-card {
    min-width: auto;
    font-size: 0.82rem;
  }

  .band {
    padding: 1.2rem;
  }

  .fact-grid,
  .gallery-grid,
    .gallery-grid.wide,
    .forcefield-grid,
    .metric-grid,
    .two-column,
    .example-grid,
    .docs-grid,
    .example-jump,
    .trouble-grid,
    .glossary-grid,
    .check-grid,
    .stage-link-grid,
  .stage-specs,
  .warning-grid,
  .engine-summary,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .engine-card-head {
    grid-template-columns: 46px minmax(0, 1fr);
  }

  .timeline a {
    grid-template-columns: 1fr;
  }

  .path-item {
    grid-template-columns: 44px 1fr;
  }

  .example-start,
  .quick-install-panel,
  .example-walkthrough-head,
  .example-brief,
  .example-step,
  .file-list div {
    grid-template-columns: 1fr;
  }

  .example-start,
  .quick-install-panel,
  .example-walkthrough-head,
  .example-brief,
  .example-step,
  .troubleshooting-panel {
    padding: 1rem;
  }

  .beginner-checks {
    margin: 1rem;
  }

  .resource-card,
  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }
}