:root {
  --ink: #06060b;
  --ink-2: #10101b;
  --paper: #f5f5f8;
  --white: #fff;
  --coral: #ff4820;
  --coral-text: #a8280d;
  --amber: #ff9500;
  --gold: #ffd166;
  --text: #191923;
  --muted: #666676;
  --line: #d9d9e1;
  --serif: "IBM Plex Serif", serif;
  --sans: "DM Sans", sans-serif;
  --mono: "JetBrains Mono", monospace;
}
* {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
}
body {
  margin: 0;
  background: var(--paper);
  color: var(--text);
  font-family: var(--sans);
  line-height: 1.7;
}
.skip {
  position: fixed;
  left: 1rem;
  top: -5rem;
  z-index: 20;
  background: var(--gold);
  color: var(--ink);
  padding: 0.7rem 1rem;
}
.skip:focus {
  top: 1rem;
}
.editorial-shell {
  width: min(1160px, calc(100% - 48px));
  margin: auto;
}
.editorial-nav {
  background: var(--ink);
  border-bottom: 1px solid #252535;
}
.nav-row {
  min-height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.brand {
  display: flex;
}
.editorial-nav nav {
  display: flex;
  align-items: center;
  gap: 28px;
}
.editorial-nav nav a {
  color: #b8b8c8;
  text-decoration: none;
  font-size: 0.9rem;
}
.editorial-nav nav a:hover,
.editorial-nav nav a:focus,
.editorial-nav nav a[aria-current] {
  color: #fff;
}
.editorial-nav .language {
  border: 1px solid #3b3b4c;
  padding: 0.3rem 0.55rem;
  font-family: var(--mono);
  font-size: 0.72rem;
}
.editorial-nav .nav-contact {
  color: #fff;
  border-bottom: 1px solid var(--coral);
}
.editorial-mobile-menu {
  display: none;
  position: relative;
  color: #f5f5f8;
}
.editorial-mobile-menu summary {
  cursor: pointer;
  list-style: none;
  border: 1px solid #3b3b4c;
  padding: 0.42rem 0.7rem;
  font: 500 0.72rem var(--mono);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.editorial-mobile-menu summary::-webkit-details-marker {
  display: none;
}
.editorial-mobile-menu summary::after {
  content: " +";
  color: var(--gold);
}
.editorial-mobile-menu[open] summary::after {
  content: " −";
}
.editorial-mobile-menu > div {
  position: absolute;
  z-index: 12;
  top: calc(100% + 10px);
  right: 0;
  display: grid;
  min-width: 210px;
  padding: 10px;
  border: 1px solid #343442;
  background: #10101b;
  box-shadow: 0 18px 42px rgba(0, 0, 0, 0.4);
}
.editorial-mobile-menu a {
  padding: 0.7rem 0.8rem;
  color: #c6c6d2;
  text-decoration: none;
  font-size: 0.88rem;
}
.editorial-mobile-menu a:hover,
.editorial-mobile-menu a:focus-visible,
.editorial-mobile-menu a[aria-current] {
  background: rgba(255, 255, 255, 0.06);
  color: #fff;
}
.blog-hero,
.article-hero {
  background: var(--ink);
  color: #f1f1f5;
  position: relative;
  overflow: hidden;
}
.blog-hero:after,
.article-hero:after {
  content: "";
  position: absolute;
  width: 540px;
  height: 540px;
  right: -170px;
  top: -260px;
  border: 1px solid rgba(255, 209, 102, 0.24);
  transform: rotate(45deg);
  box-shadow: 0 0 90px rgba(255, 72, 32, 0.08);
}
.blog-hero .editorial-shell {
  padding: 110px 0 120px;
}
.eyebrow,
.section-kicker,
.index-label {
  font: 500 0.72rem/1.4 var(--mono);
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--coral);
}
.section-kicker,
.index-label {
  color: var(--coral-text);
}
.blog-hero h1,
.article-hero h1 {
  font: 600 clamp(2.6rem, 6vw, 5.6rem) / 0.99 var(--serif);
  letter-spacing: -0.045em;
  max-width: 950px;
  margin: 20px 0 28px;
}
.blog-hero p:last-child {
  font-size: 1.18rem;
  color: #a8a8b8;
  max-width: 650px;
}
.entry-guide {
  padding: 82px 0 28px;
}
.entry-guide-head {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(250px, 0.7fr);
  column-gap: 64px;
  align-items: end;
  margin-bottom: 34px;
}
.entry-guide-head .index-label {
  grid-column: 1 / -1;
  margin: 0 0 12px;
}
.entry-guide-head h2 {
  margin: 0;
  max-width: 720px;
  font: 600 clamp(2rem, 4vw, 3.5rem) / 1.02 var(--serif);
  letter-spacing: -0.035em;
}
.entry-guide-head > p:last-child {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
}
.entry-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border: 1px solid var(--line);
  background: var(--white);
}
.entry-path {
  min-width: 0;
  padding: 28px;
}
.entry-path + .entry-path {
  border-left: 1px solid var(--line);
}
.entry-path > span {
  color: var(--coral-text);
  font: 600 0.68rem var(--mono);
  letter-spacing: 0.1em;
}
.entry-path h2 {
  margin: 12px 0 8px;
  font: 600 1.45rem/1.12 var(--serif);
}
.entry-path > p {
  min-height: 4.6em;
  margin: 0 0 20px;
  color: var(--muted);
  font-size: 0.86rem;
  line-height: 1.55;
}
.entry-path ul {
  list-style: none;
  padding: 0;
  margin: 0;
  border-top: 1px solid var(--line);
}
.entry-path li {
  border-bottom: 1px solid var(--line);
}
.entry-path a {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 12px;
  align-items: center;
  padding: 12px 0;
  color: var(--text);
  text-decoration: none;
  font-size: 0.82rem;
  font-weight: 600;
}
.entry-path a b {
  color: var(--coral-text);
  font-family: var(--mono);
}
.entry-path a:hover,
.entry-path a:focus-visible {
  color: var(--coral-text);
  text-decoration: underline;
  text-underline-offset: 4px;
}
.article-index {
  padding: 90px 0 120px;
}
.feature-article {
  display: grid;
  grid-template-columns: 1fr 210px;
  gap: 48px;
  border-top: 1px solid var(--text);
  border-bottom: 1px solid var(--line);
  padding: 40px 0;
  text-decoration: none;
  color: inherit;
}
.feature-article span {
  font: 500 0.7rem var(--mono);
  text-transform: uppercase;
  color: var(--coral-text);
}
.feature-article h2 {
  font: 600 clamp(2rem, 4vw, 3.5rem) / 1.08 var(--serif);
  max-width: 800px;
  margin: 12px 0;
}
.feature-article p {
  color: var(--muted);
  max-width: 690px;
}
.feature-meta {
  border-left: 1px solid var(--line);
  padding-left: 28px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 12px;
  font: 500 0.72rem var(--mono);
  color: var(--muted);
}
.feature-meta b {
  font-size: 2rem;
  color: var(--coral);
  margin-top: auto;
}
.article-hero .editorial-shell {
  padding: 55px 0 75px;
}
.back {
  color: #9c9caf;
  text-decoration: none;
  font: 500 0.75rem var(--mono);
}
.article-hero h1 {
  font-size: clamp(2.5rem, 5.5vw, 5rem);
  max-width: 1040px;
}
.dek {
  font: 500 clamp(1.1rem, 2vw, 1.5rem) / 1.5 var(--serif);
  max-width: 760px;
  color: #bdbdca;
}
.byline {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 32px;
  border-top: 1px solid #2d2d3b;
  margin-top: 42px;
  padding-top: 22px;
  font: 500 0.7rem var(--mono);
  text-transform: uppercase;
  color: #858599;
}
.article-layout {
  display: grid;
  grid-template-columns: 220px minmax(0, 740px);
  gap: 90px;
  align-items: start;
  padding: 80px 0 120px;
}
.article-body {
  min-width: 0;
}
.article-layout > aside {
  position: sticky;
  top: 24px;
  border-top: 2px solid var(--coral);
  padding-top: 16px;
}
.article-layout > aside > p {
  font: 600 0.7rem var(--mono);
  text-transform: uppercase;
}
.article-layout > aside > a {
  display: block;
  color: var(--muted);
  text-decoration: none;
  font-size: 0.8rem;
  line-height: 1.35;
  padding: 0.45rem 0;
}
.article-layout > aside > a:hover,
.article-layout > aside > a:focus {
  color: var(--coral);
}
.direct-answer {
  font: 500 clamp(1.35rem, 2.6vw, 1.85rem) / 1.48 var(--serif);
  padding: 0 0 50px;
  margin: 0;
  border-bottom: 1px solid var(--line);
}
.article-section {
  padding: 65px 0 10px;
  scroll-margin-top: 24px;
}
.article-section h2 {
  font: 600 clamp(1.9rem, 4vw, 3rem) / 1.1 var(--serif);
  letter-spacing: -0.03em;
  margin: 8px 0 26px;
}
.article-section > p:not(.section-kicker) {
  font-size: 1.05rem;
}
.signal-chain {
  list-style: none;
  padding: 0;
  margin: 32px 0;
  position: relative;
}
.signal-chain::before {
  content: "";
  position: absolute;
  left: 23px;
  top: 24px;
  bottom: 24px;
  width: 1px;
  background: linear-gradient(var(--coral), var(--amber));
}
.signal-chain li {
  position: relative;
  display: grid;
  grid-template-columns: 48px 1fr;
  gap: 18px;
  padding: 20px 22px 20px 16px;
  margin-bottom: 10px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.68);
}
.signal-chain .flow-node {
  position: relative;
  z-index: 1;
  width: 32px;
  height: 32px;
  display: grid;
  place-items: center;
  margin-top: 2px;
  border: 1px solid var(--coral);
  background: var(--ink);
  color: var(--gold);
  font: 500 0.68rem var(--mono);
}
.signal-chain h3 {
  margin: 0;
  font: 600 1.25rem var(--serif);
}
.signal-chain p {
  margin: 0.3rem 0;
  color: var(--muted);
}
.concept-map {
  --concept-accent: var(--coral);
  margin: 38px 0 8px;
  padding: 28px;
  overflow: hidden;
  border: 1px solid #2a2a38;
  background:
    radial-gradient(circle at 100% 0%, rgba(255, 72, 32, 0.13), transparent 34%),
    linear-gradient(145deg, #090910, #11111c);
  color: #f5f5f8;
}
.concept-label {
  margin-bottom: 22px;
  color: var(--gold);
  font: 600 0.64rem var(--mono);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
.concept-map ol {
  list-style: none;
  padding: 0;
  margin: 0;
}
.concept-map li {
  position: relative;
  min-width: 0;
  border: 1px solid #343442;
  background: rgba(20, 20, 32, 0.9);
}
.concept-map li > span {
  display: block;
  color: var(--concept-accent);
  font: 700 0.62rem var(--mono);
  letter-spacing: 0.1em;
}
.concept-map strong,
.concept-map small {
  display: block;
}
.concept-map strong {
  color: #fff;
  font: 600 0.96rem/1.25 var(--serif);
}
.concept-map small {
  margin-top: 5px;
  color: #bdbdca;
  font: 0.68rem/1.45 var(--mono);
}
.concept-map figcaption {
  margin-top: 22px;
  padding-top: 16px;
  border-top: 1px solid #2f2f3d;
  color: #a8a8b8;
  font: 0.7rem/1.55 var(--mono);
}
.concept-pipeline ol,
.concept-states ol {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}
.concept-pipeline li,
.concept-states li {
  padding: 16px 14px;
}
.concept-pipeline li:not(:last-child)::after,
.concept-states li:not(:last-child)::after {
  content: "→";
  position: absolute;
  z-index: 2;
  top: 50%;
  right: -11px;
  color: var(--gold);
  font: 700 0.75rem var(--mono);
  transform: translateY(-50%);
}
.concept-pipeline li:last-child {
  border-color: var(--coral);
  background: rgba(255, 72, 32, 0.09);
}
.concept-evidence ol {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 10px;
}
.concept-evidence li {
  padding: 15px 12px;
  border-top: 3px solid var(--concept-accent);
}
.concept-evidence li:nth-child(2) { border-top-color: var(--amber); }
.concept-evidence li:nth-child(3) { border-top-color: #ef667e; }
.concept-evidence li:nth-child(4) { border-top-color: #5baec9; }
.concept-evidence li:nth-child(5) {
  border-color: #55c998;
  background: rgba(85, 201, 152, 0.08);
}
.concept-cycle ol {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px 52px;
  max-width: 620px;
  margin-inline: auto;
}
.concept-cycle li {
  display: grid;
  grid-template-columns: 28px 1fr;
  gap: 10px;
  padding: 16px;
}
.concept-cycle li:nth-child(3) {
  grid-column: 2;
  grid-row: 2;
}
.concept-cycle li:nth-child(4) {
  grid-column: 1;
  grid-row: 2;
}
.concept-cycle li::after {
  position: absolute;
  z-index: 2;
  color: var(--gold);
  font: 700 0.82rem var(--mono);
}
.concept-cycle li:nth-child(1)::after {
  content: "→";
  position: absolute;
  right: -36px;
  top: 50%;
  transform: translateY(-50%);
}
.concept-cycle li:nth-child(2)::after {
  content: "↓";
  right: 50%;
  bottom: -14px;
  transform: translateX(50%);
}
.concept-cycle li:nth-child(3)::after {
  content: "←";
  left: -36px;
  top: 50%;
  transform: translateY(-50%);
}
.concept-cycle li:nth-child(4)::after {
  content: "↑";
  left: -18px;
  top: -17px;
}
.concept-decision ol {
  display: grid;
  gap: 12px;
  max-width: 660px;
  margin-inline: auto;
}
.concept-decision li {
  display: grid;
  grid-template-columns: 46px 1fr;
  gap: 14px;
  padding: 14px 18px;
}
.concept-decision li:nth-child(2) { margin-inline: 8%; }
.concept-decision li:nth-child(3) { margin-inline: 16%; }
.concept-decision li:last-child {
  margin-inline: 24%;
  border-color: var(--coral);
}
.concept-decision li:not(:last-child)::after {
  content: "↓";
  position: absolute;
  left: 50%;
  bottom: -14px;
  z-index: 2;
  color: var(--gold);
  font: 700 0.75rem var(--mono);
}
.concept-states { --concept-accent: #67c6de; }
.concept-states li:last-child {
  border-style: dashed;
  border-color: #67c6de;
}
.concept-layers ol {
  display: flex;
  flex-direction: column;
  gap: 9px;
  align-items: center;
}
.concept-layers li {
  display: grid;
  grid-template-columns: 32px 1fr;
  gap: 12px;
  width: 68%;
  padding: 13px 18px;
}
.concept-layers li:nth-child(2) { width: 78%; }
.concept-layers li:nth-child(3) { width: 89%; }
.concept-layers li:nth-child(4) {
  width: 100%;
  border-color: var(--coral);
  background: rgba(255, 72, 32, 0.08);
}
.delivery-dag {
  margin: 34px 0 16px;
  padding: 28px;
  overflow: hidden;
  border: 1px solid #2a2a38;
  background:
    radial-gradient(circle at 82% 0%, rgba(255, 72, 32, 0.14), transparent 34%),
    linear-gradient(145deg, #090910, #11111c);
  color: #f5f5f8;
}
.dag-label {
  margin-bottom: 22px;
  color: var(--gold);
  font: 600 0.64rem var(--mono);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
.dag-path,
.dag-outcomes {
  list-style: none;
  padding: 0;
  margin: 0;
}
.dag-path {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 12px;
}
.dag-path li {
  position: relative;
  min-width: 0;
  padding: 15px 13px;
  border: 1px solid #343442;
  background: rgba(20, 20, 32, 0.88);
}
.dag-path li:not(:last-child)::after {
  content: "→";
  position: absolute;
  z-index: 2;
  top: 50%;
  right: -11px;
  width: 10px;
  color: var(--amber);
  font: 700 0.75rem var(--mono);
  transform: translateY(-50%);
}
.dag-path li > span,
.dag-outcomes li > span {
  display: block;
  margin-bottom: 8px;
  color: var(--coral);
  font: 700 0.62rem var(--mono);
  letter-spacing: 0.1em;
}
.dag-path h3 {
  margin: 0 0 7px;
  color: #fff;
  font: 600 0.98rem var(--serif);
}
.dag-path p,
.dag-outcomes p {
  margin: 0;
  color: #bdbdca;
  font-size: 0.72rem;
  line-height: 1.55;
}
.dag-branch {
  position: relative;
  height: 42px;
  margin: 0 9%;
  border-bottom: 1px solid #555568;
}
.dag-branch::before {
  content: "";
  position: absolute;
  top: 0;
  left: 50%;
  height: 100%;
  border-left: 1px solid var(--amber);
}
.dag-branch span {
  position: absolute;
  bottom: -4px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--amber);
}
.dag-branch span:nth-child(1) { left: 0; }
.dag-branch span:nth-child(2) { left: calc(50% - 3px); }
.dag-branch span:nth-child(3) { right: 0; }
.dag-outcomes {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin-top: 18px;
}
.dag-outcomes li {
  padding: 16px;
  border-top: 3px solid var(--amber);
  background: rgba(255, 255, 255, 0.06);
}
.dag-outcomes li strong {
  display: block;
  margin-bottom: 6px;
  font: 600 0.9rem var(--serif);
}
.dag-outcomes .outcome-1 { border-color: #55c998; }
.dag-outcomes .outcome-1 > span { color: #72ddb0; }
.dag-outcomes .outcome-2 { border-color: var(--gold); }
.dag-outcomes .outcome-2 > span { color: var(--gold); }
.dag-outcomes .outcome-3 { border-color: var(--coral); }
.dag-outcomes .outcome-3 > span { color: #ff7659; }
.delivery-dag figcaption {
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid #2f2f3d;
  color: #a8a8b8;
  font: 0.7rem/1.55 var(--mono);
}
pre {
  background: var(--ink);
  color: #f6dda8;
  padding: 28px;
  overflow: auto;
  border-left: 3px solid var(--coral);
  font: 400 0.8rem/1.7 var(--mono);
}
.boundary-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  border: 1px solid var(--line);
}
.boundary-grid > div {
  padding: 26px;
}
.boundary-grid > div + div {
  border-left: 1px solid var(--line);
  background: #ececf1;
}
.boundary-grid h3 {
  font: 600 0.7rem var(--mono);
  color: var(--coral-text);
}
.boundary-grid ul {
  padding: 0;
  list-style: none;
}
.boundary-grid li {
  display: grid;
  grid-template-columns: 22px 1fr;
  gap: 8px;
  margin: 0.65rem 0;
}
.boundary-grid li span {
  font: 700 0.9rem var(--mono);
  color: var(--coral-text);
}
.boundary-grid .cannot li span {
  color: #8a2630;
}
.checklist {
  list-style: none;
  padding: 0;
  border-top: 1px solid var(--text);
}
.checklist li {
  display: grid;
  grid-template-columns: 34px 1fr;
  gap: 10px;
  align-items: start;
  padding: 17px 0;
  border-bottom: 1px solid var(--line);
}
.checkmark {
  width: 22px;
  height: 22px;
  display: grid;
  place-items: center;
  margin-top: 2px;
  border: 1px solid var(--coral-text);
  color: var(--coral-text);
  font: 700 0.72rem var(--mono);
}
.evidence-trace,
.evidence-note > div {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}
.evidence-trace {
  margin: -10px 0 28px;
  padding-left: 12px;
  border-left: 2px solid var(--coral);
}
.evidence-trace > span,
.evidence-note > span {
  font: 600 0.65rem var(--mono);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--coral-text);
}
.evidence-trace a,
.evidence-note a {
  border: 1px solid #c7c7d1;
  color: var(--text);
  padding: 0.16rem 0.45rem;
  text-decoration: none;
  font: 500 0.65rem var(--mono);
}
.evidence-trace a:hover,
.evidence-trace a:focus-visible,
.evidence-note a:hover,
.evidence-note a:focus-visible {
  border-color: var(--coral-text);
  color: var(--coral-text);
}
.evidence-note {
  position: relative;
  margin: -6px 0 30px;
  padding: 22px 24px 22px 28px;
  border: 1px solid #d8cda8;
  border-left: 3px solid var(--amber);
  background: #fff8e7;
}
.evidence-note::before {
  content: "◇";
  position: absolute;
  right: 18px;
  top: 14px;
  color: var(--amber);
  font-size: 1.1rem;
}
.evidence-note p {
  margin: 0.45rem 1.5rem 0.8rem 0;
  color: #555362;
  font-size: 0.9rem;
  line-height: 1.55;
}
.sources li {
  scroll-margin-top: 24px;
}
.sources ol {
  padding: 0;
  list-style: none;
}
.sources li {
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
}
.sources a {
  color: var(--text);
  font-weight: 700;
  text-underline-offset: 3px;
}
.sources p {
  margin: 0.25rem 0;
  color: var(--muted);
  font-size: 0.9rem;
}
.article-index .feature-article + .feature-article {
  border-top: 0;
}
.related-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}
.related-card {
  position: relative;
  min-width: 0;
  padding: 24px;
  border: 1px solid var(--line);
  color: var(--text);
  text-decoration: none;
  transition:
    border-color 160ms ease,
    transform 160ms ease;
}
.related-card:hover,
.related-card:focus-visible {
  border-color: var(--coral-text);
  transform: translateY(-2px);
}
.related-card span {
  font: 500 0.66rem var(--mono);
  color: var(--coral-text);
  text-transform: uppercase;
}
.related-card h3 {
  margin: 0.65rem 1.5rem 0.6rem 0;
  font: 600 1.2rem/1.2 var(--serif);
}
.related-card p {
  margin: 0;
  color: var(--muted);
  font-size: 0.86rem;
}
.related-card b {
  position: absolute;
  top: 22px;
  right: 22px;
  color: var(--coral-text);
}
.article-cta {
  background: var(--ink);
  color: #f4f4f7;
  padding: 40px;
  margin-top: 70px;
}
.article-cta > p {
  font: 500 0.68rem var(--mono);
  text-transform: uppercase;
  color: var(--gold);
}
.article-cta h2 {
  font: 600 2.2rem/1.1 var(--serif);
}
.article-cta > div {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}
.article-cta a {
  border: 1px solid #454556;
  color: #fff;
  text-decoration: none;
  padding: 0.75rem 1rem;
  font-size: 0.85rem;
}
.article-cta a.primary {
  background: var(--coral);
  border-color: var(--coral);
  color: var(--ink);
  font-weight: 700;
}
.editorial-footer {
  background: var(--ink-2);
  color: #9292a2;
  border-top: 1px solid #282836;
}
.editorial-footer .editorial-shell {
  min-height: 160px;
  display: grid;
  grid-template-columns: 180px 1fr auto;
  align-items: center;
  gap: 30px;
}
.editorial-footer p {
  font-size: 0.85rem;
}
.editorial-footer a {
  color: #bdbdca;
}
@media (max-width: 850px) {
  .editorial-shell {
    width: min(100% - 32px, 740px);
  }
  .editorial-nav > .nav-row > nav {
    display: none;
  }
  .editorial-mobile-menu {
    display: block;
  }
  .article-layout {
    grid-template-columns: 1fr;
    gap: 0;
  }
  .article-layout > aside {
    position: static;
    display: none;
  }
  .feature-article {
    grid-template-columns: 1fr;
  }
  .entry-guide-head {
    grid-template-columns: 1fr;
    gap: 18px;
  }
  .entry-grid {
    grid-template-columns: 1fr;
  }
  .entry-path + .entry-path {
    border-left: 0;
    border-top: 1px solid var(--line);
  }
  .entry-path > p {
    min-height: 0;
  }
  .feature-meta {
    border-left: 0;
    padding-left: 0;
    border-top: 1px solid var(--line);
    padding-top: 18px;
  }
  .editorial-footer .editorial-shell {
    grid-template-columns: 1fr;
    padding: 35px 0;
    gap: 8px;
  }
  .delivery-dag {
    padding: 22px;
  }
  .concept-map {
    padding: 22px;
  }
  .concept-pipeline ol,
  .concept-states ol,
  .concept-evidence ol {
    grid-template-columns: 1fr 1fr;
  }
  .concept-pipeline li::after,
  .concept-states li::after {
    display: none;
  }
  .concept-evidence li:last-child {
    grid-column: 1 / -1;
  }
  .dag-path {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  .dag-path li:not(:last-child)::after {
    content: "↓";
    top: auto;
    right: 50%;
    bottom: -15px;
    transform: translateX(50%);
  }
  .dag-branch {
    height: 30px;
    margin-inline: 12%;
  }
}
@media (max-width: 560px) {
  .blog-hero .editorial-shell {
    padding: 75px 0 85px;
  }
  .entry-guide {
    padding-top: 58px;
  }
  .entry-path {
    padding: 24px 20px;
  }
  .article-hero .editorial-shell {
    padding: 40px 0 55px;
  }
  .boundary-grid {
    grid-template-columns: 1fr;
  }
  .related-grid {
    grid-template-columns: 1fr;
  }
  .boundary-grid > div + div {
    border-left: 0;
    border-top: 1px solid var(--line);
  }
  .article-cta {
    padding: 28px 22px;
  }
  .article-cta h2 {
    font-size: 1.75rem;
  }
  .article-layout {
    padding-top: 55px;
  }
  .signal-chain li {
    padding-right: 16px;
  }
  .evidence-note {
    padding: 20px;
  }
  .editorial-nav nav {
    gap: 14px;
  }
  .delivery-dag {
    margin-inline: -8px;
    padding: 18px;
  }
  .concept-map {
    margin-inline: -8px;
    padding: 18px;
  }
  .concept-pipeline ol,
  .concept-states ol,
  .concept-evidence ol,
  .concept-cycle ol {
    grid-template-columns: 1fr;
  }
  .concept-cycle li:nth-child(1)::after,
  .concept-cycle li:nth-child(2)::after,
  .concept-cycle li:nth-child(3)::after {
    content: "↓";
    right: 50%;
    left: auto;
    top: auto;
    bottom: -14px;
    transform: translateX(50%);
  }
  .concept-cycle li:nth-child(4)::after {
    content: "↺";
    right: 10px;
    left: auto;
    top: auto;
    bottom: 8px;
    transform: none;
  }
  .concept-cycle li:nth-child(3),
  .concept-cycle li:nth-child(4) {
    grid-column: auto;
    grid-row: auto;
  }
  .concept-decision li,
  .concept-decision li:nth-child(2),
  .concept-decision li:nth-child(3),
  .concept-decision li:last-child,
  .concept-layers li,
  .concept-layers li:nth-child(2),
  .concept-layers li:nth-child(3),
  .concept-layers li:nth-child(4) {
    width: 100%;
    margin-inline: 0;
  }
  .dag-outcomes {
    grid-template-columns: 1fr;
  }
  .dag-branch {
    display: none;
  }
}
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  .related-card {
    transition: none;
  }
}

/* Reference artifacts — engineering notebook, not a generic docs widget. */
.article-brief {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  margin: 34px 0 46px;
  border: 1px solid var(--line);
  border-top: 3px solid var(--coral);
  background: rgba(255, 255, 255, 0.7);
  box-shadow: 0 18px 42px rgba(6, 6, 11, 0.06);
}
.article-brief > div {
  padding: 20px 22px;
}
.article-brief > div + div {
  border-left: 1px solid var(--line);
}
.article-brief span,
.code-artifact figcaption > span,
.artifact-command > span {
  display: block;
  margin-bottom: 7px;
  color: var(--coral-text);
  font: 600 0.68rem/1.2 var(--mono);
  letter-spacing: 0.11em;
  text-transform: uppercase;
}
.article-brief p {
  margin: 0;
  color: var(--ink-2);
  font-size: 0.9rem;
  line-height: 1.5;
}
.heading-link {
  display: inline-block;
  margin-left: 0.5rem;
  color: transparent;
  font: 500 0.65em var(--mono);
  text-decoration: none;
  transform: translateY(-0.08em);
}
h2:hover .heading-link,
.heading-link:focus-visible {
  color: var(--coral-text);
}
.heading-link:focus-visible,
.copy-code:focus-visible,
.code-tabs button:focus-visible {
  outline: 3px solid var(--gold);
  outline-offset: 3px;
}
.code-artifact {
  margin: 36px 0 12px;
  overflow: hidden;
  border: 1px solid #292938;
  border-radius: 3px;
  background: var(--ink);
  color: #eaeaef;
  box-shadow: 0 24px 58px rgba(6, 6, 11, 0.2);
}
.code-artifact figcaption {
  padding: 28px 30px 24px;
  border-bottom: 1px solid #292938;
  background:
    linear-gradient(105deg, rgba(255, 72, 32, 0.11), transparent 38%),
    #0b0b12;
}
.code-artifact figcaption > span {
  color: #ff8a70;
}
.code-artifact figcaption h3 {
  margin: 0 0 8px;
  color: #fff;
  font: 600 clamp(1.25rem, 2vw, 1.65rem)/1.2 var(--serif);
}
.code-artifact figcaption p {
  max-width: 760px;
  margin: 0;
  color: #b9b9c6;
  font-size: 0.9rem;
  line-height: 1.65;
}
.code-tabs {
  display: flex;
  gap: 2px;
  overflow-x: auto;
  padding: 10px 12px 0;
  border-bottom: 1px solid #292938;
  background: #08080e;
}
.code-tabs button {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-height: 42px;
  padding: 0 14px;
  border: 0;
  border-bottom: 2px solid transparent;
  background: transparent;
  color: #9191a2;
  cursor: pointer;
  font: 500 0.74rem var(--mono);
  white-space: nowrap;
}
.code-tabs button small {
  color: #646477;
  font-size: 0.62rem;
  text-transform: uppercase;
}
.code-tabs button[aria-selected="true"] {
  border-color: var(--coral);
  color: #fff;
  background: #11111b;
}
.code-panel[hidden] {
  display: none;
}
.code-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 48px;
  padding: 0 16px 0 20px;
  border-bottom: 1px solid #20202d;
  color: #777789;
  font: 0.7rem var(--mono);
}
.copy-code {
  border: 1px solid #414153;
  border-radius: 2px;
  background: #141420;
  color: #ededf3;
  cursor: pointer;
  padding: 7px 11px;
  font: 600 0.68rem var(--mono);
}
.copy-code:hover {
  border-color: #ff7657;
  color: #fff;
}
.code-artifact pre,
.artifact-output pre {
  max-width: 100%;
  margin: 0;
  overflow: auto;
  border: 0;
  border-radius: 0;
  background: #06060b;
  color: #e8e8ee;
  padding: 24px 26px;
  tab-size: 2;
}
.code-artifact pre:focus-visible,
.artifact-output pre:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: -3px;
}
.code-artifact pre code,
.artifact-output pre code,
.artifact-command code {
  font: 0.77rem/1.72 var(--mono);
}
.artifact-command {
  display: grid;
  grid-template-columns: 88px minmax(0, 1fr);
  gap: 16px;
  padding: 17px 24px;
  border-top: 1px solid #20202d;
  background: #0d0d16;
}
.artifact-command > span {
  margin: 4px 0 0;
  color: #ff8a70;
}
.artifact-command code {
  overflow-wrap: anywhere;
  color: #f2d27b;
}
.artifact-output {
  border-top: 1px solid #20202d;
  background: #09090f;
}
.artifact-output summary {
  padding: 16px 24px;
  color: #d7d7df;
  cursor: pointer;
  font: 500 0.75rem var(--mono);
}
.artifact-notes {
  display: grid;
  grid-template-columns: 1fr 1fr;
  border-top: 1px solid #292938;
  background: #11111a;
}
.artifact-notes p {
  margin: 0;
  padding: 21px 24px;
  color: #aaaabb;
  font-size: 0.8rem;
  line-height: 1.6;
}
.artifact-notes p + p {
  border-left: 1px solid #292938;
}
.artifact-notes strong {
  color: #fff;
}
.copy-status {
  min-height: 1.4rem;
  margin: 0;
  padding: 0 24px 12px;
  color: #f2d27b;
  font: 0.68rem var(--mono);
}

@media (max-width: 760px) {
  .article-brief,
  .artifact-notes {
    grid-template-columns: 1fr;
  }
  .article-brief > div + div,
  .artifact-notes p + p {
    border-left: 0;
    border-top: 1px solid var(--line);
  }
  .artifact-notes p + p {
    border-color: #292938;
  }
  .code-artifact {
    margin-inline: -8px;
  }
  .code-artifact figcaption {
    padding: 24px 20px 20px;
  }
  .code-artifact pre,
  .artifact-output pre {
    padding: 20px;
  }
  .artifact-command {
    grid-template-columns: 1fr;
    gap: 6px;
    padding: 16px 20px;
  }
}