:root {
  color-scheme: dark;
  --bg: #090a0d;
  --bg-elevated: #0d0f14;
  --surface: #11131a;
  --surface-strong: #171a22;
  --surface-hover: #1c202a;
  --border: #282c36;
  --border-strong: #383d49;
  --text: #f3f5f7;
  --text-soft: #c9cdd5;
  --muted: #a6abb5;
  --subtle: #7f8692;
  --accent: #4ac7ff;
  --accent-strong: #99e2ff;
  --accent-wash: #102737;
  --magenta: #ec5bc8;
  --magenta-wash: #32152c;
  --green: #75d7ad;
  --green-wash: #12291f;
  --amber: #e2b86b;
  --sidebar-width: 264px;
  --header-height: 68px;
  --content-width: 1240px;
  --font-sans: "IBM Plex Sans", "Segoe UI", sans-serif;
  --font-mono: "JetBrains Mono", "Cascadia Mono", Consolas, monospace;
  --ease: 180ms ease;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-height) + 28px);
}

body {
  margin: 0;
  min-width: 320px;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
  text-decoration: none;
  -webkit-tap-highlight-color: transparent;
}

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

svg {
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.7;
}

:focus-visible {
  outline: 2px solid var(--accent-strong);
  outline-offset: 3px;
}

::selection {
  background: var(--accent);
  color: #071016;
}

.skip-link {
  position: fixed;
  z-index: 100;
  top: 12px;
  left: 12px;
  transform: translateY(-160%);
  padding: 9px 13px;
  border-radius: 6px;
  background: var(--text);
  color: var(--bg);
  font-weight: 600;
  transition: transform var(--ease);
}

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

.site-shell {
  min-height: 100vh;
}

.sidebar {
  position: fixed;
  z-index: 30;
  inset: 0 auto 0 0;
  display: flex;
  width: var(--sidebar-width);
  flex-direction: column;
  border-right: 1px solid var(--border);
  background: #0b0c10;
}

.sidebar-header {
  display: flex;
  min-height: var(--header-height);
  align-items: center;
  padding: 0 18px;
  border-bottom: 1px solid var(--border);
}

.brand {
  display: inline-flex;
  min-width: 0;
  align-items: center;
  gap: 11px;
}

.brand-mark {
  display: grid;
  width: 38px;
  height: 38px;
  flex: 0 0 auto;
  place-items: center;
  overflow: hidden;
  border: 1px solid #266986;
  background: linear-gradient(135deg, var(--accent-wash), var(--magenta-wash));
}

.brand-mark img {
  width: 36px;
  height: auto;
}

.brand strong,
.brand small {
  display: block;
}

.brand strong {
  font-size: 15px;
  line-height: 1.2;
}

.brand small {
  margin-top: 3px;
  color: var(--subtle);
  font-family: var(--font-mono);
  font-size: 8px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.sidebar-nav {
  flex: 1;
  overflow-y: auto;
  padding: 18px 12px;
}

.nav-section + .nav-section {
  margin-top: 26px;
}

.nav-label,
.rail-label,
.section-kicker,
.eyebrow,
.note-index {
  margin: 0;
  color: var(--subtle);
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.105em;
  text-transform: uppercase;
}

.nav-label {
  padding: 0 10px 8px;
}

.nav-link {
  position: relative;
  display: flex;
  width: 100%;
  min-height: 44px;
  align-items: center;
  gap: 10px;
  padding: 8px 10px;
  border-radius: 6px;
  color: var(--muted);
  font-size: 14px;
  transition: background var(--ease), color var(--ease);
}

.nav-link:hover {
  background: var(--surface);
  color: var(--text);
}

.nav-link.is-active {
  background: var(--surface-strong);
  color: var(--text);
  font-weight: 500;
}

.nav-link.is-active::before {
  position: absolute;
  left: -12px;
  width: 2px;
  height: 20px;
  background: linear-gradient(var(--accent), var(--magenta));
  content: "";
}

.nav-link svg {
  width: 17px;
  height: 17px;
  flex: 0 0 auto;
}

.nav-count {
  margin-left: auto;
  color: var(--subtle);
  font-family: var(--font-mono);
  font-size: 10px;
}

.nav-dot {
  width: 7px;
  height: 7px;
  margin: 0 5px;
  border-radius: 50%;
}

.dot-green { background: var(--green); }
.dot-blue { background: var(--accent); }
.dot-rose { background: var(--magenta); }

.sidebar-footer {
  display: flex;
  min-height: 52px;
  align-items: center;
  gap: 8px;
  padding: 0 20px;
  border-top: 1px solid var(--border);
  color: var(--subtle);
  font-family: var(--font-mono);
  font-size: 8px;
  letter-spacing: 0.035em;
  text-transform: uppercase;
}

.status-dot {
  display: inline-block;
  width: 6px;
  height: 6px;
  flex: 0 0 auto;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 0 3px rgb(117 215 173 / 9%);
}

.sidebar-footer .version {
  margin-left: auto;
}

.page-frame {
  min-width: 0;
  margin-left: var(--sidebar-width);
}

.topbar {
  position: sticky;
  z-index: 20;
  top: 0;
  display: flex;
  min-height: var(--header-height);
  align-items: center;
  justify-content: space-between;
  padding: 0 34px;
  border-bottom: 1px solid var(--border);
  background: rgb(9 10 13 / 94%);
  backdrop-filter: blur(12px);
}

.breadcrumbs,
.topbar-actions,
.main-site-link {
  display: flex;
  align-items: center;
}

.breadcrumbs {
  gap: 8px;
  color: var(--subtle);
  font-family: var(--font-mono);
  font-size: 11px;
}

.breadcrumbs svg {
  width: 12px;
  height: 12px;
}

.breadcrumbs strong {
  color: var(--text-soft);
  font-weight: 500;
}

.topbar-actions {
  gap: 20px;
}

.topbar-link {
  color: var(--text-soft);
  font-size: 13px;
  font-weight: 500;
}

.topbar-link:hover {
  color: var(--accent-strong);
}

.main-site-link {
  gap: 6px;
  padding: 8px 11px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--surface);
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  transition: border-color var(--ease), color var(--ease), background var(--ease);
}

.main-site-link:hover {
  border-color: #376c82;
  background: var(--surface-strong);
  color: var(--accent-strong);
}

.main-site-link svg {
  width: 14px;
  height: 14px;
}

.mobile-brand,
.mobile-menu {
  display: none;
}

main {
  min-height: calc(100vh - var(--header-height));
}

.hero {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 310px;
  gap: clamp(50px, 7vw, 110px);
  max-width: var(--content-width);
  margin: 0 auto;
  padding: clamp(70px, 8vw, 112px) 36px 74px;
  border-bottom: 1px solid var(--border);
}

.hero::before {
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(circle at 18% 18%, rgb(74 199 255 / 7%), transparent 30%),
    radial-gradient(circle at 78% 34%, rgb(236 91 200 / 5%), transparent 26%);
  content: "";
  pointer-events: none;
}

.hero-copy {
  min-width: 0;
  max-width: 760px;
}

.eyebrow {
  display: flex;
  align-items: center;
  gap: 9px;
  color: var(--accent-strong);
}

.eyebrow span {
  width: 22px;
  height: 1px;
  background: linear-gradient(90deg, var(--accent), var(--magenta));
}

.hero h1 {
  max-width: 720px;
  margin: 22px 0 18px;
  font-size: clamp(42px, 5vw, 66px);
  font-weight: 500;
  letter-spacing: -0.045em;
  line-height: 1.04;
}

.hero-lede {
  max-width: 690px;
  margin: 0;
  color: var(--muted);
  font-size: clamp(17px, 1.65vw, 20px);
  line-height: 1.65;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 20px;
  margin-top: 34px;
}

.primary-button,
.rail-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  border-radius: 6px;
  font-weight: 600;
  transition: transform var(--ease), background var(--ease), border-color var(--ease);
}

.primary-button {
  min-height: 48px;
  padding: 0 18px;
  background: var(--accent-strong);
  color: #071017;
  box-shadow: 0 12px 30px rgb(74 199 255 / 10%);
}

.primary-button:hover {
  transform: translateY(-1px);
  background: #c0efff;
}

.primary-button svg,
.rail-button svg {
  width: 16px;
  height: 16px;
}

.secondary-link {
  color: var(--text-soft);
  font-size: 14px;
  font-weight: 500;
}

.secondary-link:hover {
  color: var(--accent-strong);
}

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 22px;
  margin-top: 24px;
  color: var(--subtle);
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.hero-meta > span {
  display: inline-flex;
  align-items: center;
  gap: 7px;
}

.hero-meta strong {
  color: var(--text-soft);
  font-weight: 600;
}

.hero-note {
  min-width: 0;
  align-self: center;
  padding: 26px 0 4px 25px;
  border-left: 1px solid var(--border-strong);
}

.hero-note blockquote {
  margin: 24px 0 20px;
  color: var(--text-soft);
  font-size: 19px;
  line-height: 1.55;
}

.note-list {
  display: grid;
  gap: 9px;
  margin: 0;
  padding: 0;
  color: var(--subtle);
  font-family: var(--font-mono);
  font-size: 10px;
  list-style: none;
}

.note-list li {
  position: relative;
  padding-left: 16px;
}

.note-list li::before {
  position: absolute;
  top: 0.72em;
  left: 0;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--accent);
  content: "";
  transform: translateY(-50%);
}

.content-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 310px;
  gap: clamp(50px, 7vw, 110px);
  max-width: var(--content-width);
  margin: 0 auto;
  padding: 0 36px;
}

.content-primary {
  min-width: 0;
}

.section-block {
  padding: 68px 0;
  border-bottom: 1px solid var(--border);
}

.section-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 28px;
  margin-bottom: 26px;
}

.section-heading h2,
.roadmap-block h2,
.rail-section h2 {
  margin: 8px 0 0;
  font-weight: 500;
  letter-spacing: -0.025em;
  line-height: 1.2;
}

.section-heading h2,
.roadmap-block h2 {
  font-size: clamp(27px, 3vw, 36px);
}

.section-summary {
  max-width: 310px;
  margin: 0;
  color: var(--subtle);
  font-size: 13px;
  line-height: 1.6;
  text-align: right;
}

.path-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border-top: 1px solid var(--border);
  border-left: 1px solid var(--border);
}

.path-card {
  position: relative;
  display: grid;
  min-height: 214px;
  grid-template-columns: 1fr auto;
  align-content: space-between;
  gap: 20px;
  padding: 25px;
  border-right: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  transition: background var(--ease);
}

.path-card:hover {
  background: var(--surface);
}

.path-card > span:nth-child(2) {
  grid-column: 1 / -1;
}

.path-icon {
  display: grid;
  width: 38px;
  height: 38px;
  place-items: center;
  border: 1px solid var(--border-strong);
  background: var(--surface-strong);
}

.path-icon svg {
  width: 20px;
  height: 20px;
}

.path-card .row-arrow {
  align-self: center;
}

.path-card strong,
.path-card small {
  display: block;
}

.path-card strong {
  color: var(--text-soft);
  font-size: 17px;
}

.path-card small {
  margin-top: 8px;
  color: var(--subtle);
  font-size: 13px;
  line-height: 1.55;
}

.path-green .path-icon { color: var(--green); background: var(--green-wash); }
.path-blue .path-icon { color: var(--accent-strong); background: var(--accent-wash); }
.path-rose .path-icon { color: #ff9be2; background: var(--magenta-wash); }

.row-arrow {
  width: 18px;
  height: 18px;
  color: var(--subtle);
  transition: transform var(--ease), color var(--ease);
}

a:hover > .row-arrow,
a:hover .row-arrow {
  transform: translateX(3px);
  color: var(--accent-strong);
}

.updated-stamp {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 9px;
  border: 1px solid var(--border);
  border-radius: 5px;
  color: var(--subtle);
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.document-list {
  border-top: 1px solid var(--border);
}

.document-row {
  display: grid;
  min-height: 88px;
  grid-template-columns: 86px minmax(0, 1fr) auto 18px;
  align-items: center;
  gap: 18px;
  padding: 14px 12px;
  border-bottom: 1px solid var(--border);
  transition: background var(--ease), padding var(--ease);
}

.document-row:hover {
  padding-right: 8px;
  padding-left: 16px;
  background: var(--surface);
}

.document-kind {
  width: fit-content;
  padding: 4px 7px;
  border: 1px solid var(--border);
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 9px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.kind-guide {
  border-color: #2d604b;
  background: var(--green-wash);
  color: var(--green);
}

.kind-app {
  border-color: #285a70;
  background: var(--accent-wash);
  color: var(--accent-strong);
}

.document-copy {
  min-width: 0;
}

.document-copy strong,
.document-copy small {
  display: block;
}

.document-copy strong {
  color: var(--text-soft);
  font-size: 15px;
}

.document-copy small {
  margin-top: 5px;
  overflow: hidden;
  color: var(--subtle);
  font-size: 13px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.document-meta {
  color: var(--subtle);
  font-family: var(--font-mono);
  font-size: 9px;
  text-transform: uppercase;
}

.roadmap-block {
  padding: 68px 0 76px;
}

.roadmap-block > p:not(.section-kicker) {
  max-width: 680px;
  margin: 18px 0 0;
  color: var(--muted);
  line-height: 1.7;
}

.roadmap-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 24px;
}

.roadmap-tags span {
  padding: 7px 10px;
  border: 1px solid var(--border);
  border-radius: 5px;
  background: var(--bg-elevated);
  color: var(--subtle);
  font-family: var(--font-mono);
  font-size: 9px;
  text-transform: uppercase;
}

.content-rail {
  min-width: 0;
  border-left: 1px solid var(--border);
}

.rail-section {
  padding: 34px 0 34px 28px;
  border-bottom: 1px solid var(--border);
}

.rail-section h2 {
  color: var(--text-soft);
  font-size: 20px;
}

.rail-section p:not(.rail-label) {
  margin: 13px 0 0;
  color: var(--subtle);
  font-size: 13px;
  line-height: 1.65;
}

.rail-button {
  width: 100%;
  min-height: 44px;
  margin-top: 22px;
  border: 1px solid #2f708d;
  background: var(--accent-wash);
  color: var(--accent-strong);
  font-size: 13px;
}

.rail-button:hover {
  border-color: var(--accent);
  background: #163348;
}

.code-link {
  display: block;
  margin-top: 18px;
  padding: 11px 12px;
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: 5px;
  background: var(--bg-elevated);
  color: var(--accent-strong);
  font-family: var(--font-mono);
  font-size: 10px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.code-link:hover {
  border-color: #376c82;
}

.status-heading {
  display: flex;
  align-items: center;
  gap: 8px;
}

.status-card > strong {
  display: block;
  margin-top: 14px;
  color: var(--green);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.support-card > a {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  margin-top: 18px;
  color: var(--text-soft);
  font-size: 13px;
  font-weight: 600;
}

.support-card > a:hover {
  color: var(--accent-strong);
}

.support-card svg {
  width: 15px;
  height: 15px;
}

.site-footer {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 24px;
  max-width: var(--content-width);
  min-height: 96px;
  align-items: center;
  margin: 0 auto;
  padding: 20px 36px;
  border-top: 1px solid var(--border);
  color: var(--subtle);
  font-size: 12px;
}

.site-footer > div,
.site-footer nav {
  display: flex;
  align-items: center;
  gap: 10px;
}

.site-footer p {
  margin: 0;
  text-align: center;
}

.site-footer nav {
  gap: 17px;
}

.site-footer a:hover {
  color: var(--text-soft);
}

.footer-mark {
  display: grid;
  width: 27px;
  height: 27px;
  place-items: center;
  border: 1px solid #376c82;
  background: var(--accent-wash);
  color: var(--accent-strong);
  font-family: var(--font-mono);
  font-size: 8px;
  font-weight: 700;
}

@media (max-width: 1100px) {
  :root {
    --sidebar-width: 242px;
  }

  .hero,
  .content-layout {
    grid-template-columns: minmax(0, 1fr) 260px;
    gap: 44px;
  }

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

  .path-card {
    min-height: 138px;
  }
}

@media (max-width: 900px) {
  .sidebar {
    display: none;
  }

  .page-frame {
    margin-left: 0;
  }

  .topbar {
    padding: 0 24px;
  }

  .breadcrumbs {
    display: none;
  }

  .mobile-brand {
    display: flex;
    align-items: center;
    gap: 9px;
    font-size: 14px;
  }

  .mobile-brand img {
    width: 32px;
    height: auto;
  }

  .hero,
  .content-layout {
    grid-template-columns: minmax(0, 1fr);
  }

  .hero {
    gap: 44px;
  }

  .hero-note {
    padding: 28px 0 0;
    border-top: 1px solid var(--border-strong);
    border-left: 0;
  }

  .content-rail {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    border-top: 1px solid var(--border);
    border-left: 0;
  }

  .rail-section {
    padding: 28px;
    border-right: 1px solid var(--border);
  }
}

@media (max-width: 680px) {
  :root {
    --header-height: 60px;
  }

  .topbar {
    padding: 0 16px;
  }

  .topbar-actions {
    display: none;
  }

  .mobile-menu {
    position: relative;
    display: block;
  }

  .mobile-menu summary {
    display: grid;
    width: 38px;
    height: 38px;
    place-items: center;
    border: 1px solid var(--border);
    border-radius: 6px;
    background: var(--surface);
    color: var(--muted);
    cursor: pointer;
    list-style: none;
  }

  .mobile-menu summary::-webkit-details-marker {
    display: none;
  }

  .mobile-menu summary svg {
    width: 19px;
    height: 19px;
  }

  .mobile-menu nav {
    position: absolute;
    top: 46px;
    right: 0;
    display: grid;
    width: min(260px, calc(100vw - 32px));
    padding: 8px;
    border: 1px solid var(--border-strong);
    border-radius: 7px;
    background: var(--bg-elevated);
    box-shadow: 0 20px 50px rgb(0 0 0 / 42%);
  }

  .mobile-menu nav a {
    padding: 10px 11px;
    border-radius: 5px;
    color: var(--muted);
    font-size: 13px;
  }

  .mobile-menu nav a:hover {
    background: var(--surface-strong);
    color: var(--text);
  }

  .hero,
  .content-layout,
  .site-footer {
    padding-right: 20px;
    padding-left: 20px;
  }

  .hero {
    padding-top: 58px;
    padding-bottom: 54px;
  }

  .hero h1 {
    font-size: clamp(38px, 12vw, 51px);
  }

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

  .hero-actions {
    align-items: stretch;
    flex-direction: column;
  }

  .primary-button,
  .secondary-link {
    width: 100%;
    text-align: center;
  }

  .hero-meta {
    flex-direction: column;
  }

  .section-block,
  .roadmap-block {
    padding: 54px 0;
  }

  .section-heading {
    align-items: flex-start;
    flex-direction: column;
  }

  .section-summary {
    max-width: none;
    text-align: left;
  }

  .path-card {
    min-height: 150px;
    padding: 21px;
  }

  .document-row {
    grid-template-columns: 76px minmax(0, 1fr) 18px;
    gap: 12px;
    padding: 16px 4px;
  }

  .document-row:hover {
    padding-right: 0;
    padding-left: 8px;
  }

  .document-copy small {
    white-space: normal;
  }

  .document-meta {
    display: none;
  }

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

  .rail-section {
    padding: 28px 0;
    border-right: 0;
  }

  .site-footer {
    display: flex;
    min-height: 150px;
    align-items: flex-start;
    flex-direction: column;
    gap: 14px;
    padding-top: 30px;
    padding-bottom: 30px;
  }

  .site-footer p {
    text-align: left;
  }
}

@media (forced-colors: active) {
  .status-dot,
  .nav-dot,
  .note-list li::before {
    border: 1px solid currentColor;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}

/* Reference library pages */

.reference-main,
.article-main {
  width: min(100%, 1280px);
  margin: 0 auto;
  padding: 0 42px 84px;
}

.reference-hero,
.article-hero {
  padding: 76px 0 58px;
  border-bottom: 1px solid var(--border);
}

.reference-hero h1,
.article-hero h1 {
  max-width: 900px;
  margin: 16px 0 20px;
  font-size: clamp(44px, 5.7vw, 78px);
  font-weight: 650;
  letter-spacing: -0.055em;
  line-height: 0.99;
}

.reference-lede {
  max-width: 810px;
  margin: 0;
  color: var(--text-soft);
  font-size: 19px;
  line-height: 1.65;
}

.fact-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 26px;
  margin-top: 38px;
  color: var(--subtle);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.025em;
}

.fact-strip span {
  position: relative;
}

.fact-strip span + span::before {
  position: absolute;
  top: 50%;
  left: -14px;
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: var(--border-strong);
  content: "";
}

.fact-strip strong {
  color: var(--text-soft);
  font-weight: 600;
}

.machine-callout {
  display: grid;
  align-items: center;
  grid-template-columns: minmax(0, 1.3fr) minmax(320px, 0.7fr);
  gap: 38px;
  margin: 38px 0 0;
  padding: 28px 30px;
  border: 1px solid #245772;
  background: linear-gradient(135deg, rgb(16 39 55 / 80%), rgb(17 19 26 / 96%));
}

.machine-callout h2,
.notice-block h2 {
  margin: 7px 0 8px;
  font-size: 23px;
  letter-spacing: -0.025em;
}

.machine-callout p,
.notice-block p {
  margin: 0;
  color: var(--muted);
}

.machine-links {
  display: grid;
  gap: 8px;
}

.machine-links a {
  display: flex;
  min-width: 0;
  align-items: center;
  gap: 11px;
  padding: 10px 12px;
  border: 1px solid var(--border);
  background: rgb(9 10 13 / 52%);
  color: var(--text-soft);
  font-family: var(--font-mono);
  font-size: 11px;
  overflow-wrap: anywhere;
  transition: border-color var(--ease), color var(--ease), transform var(--ease);
}

.machine-links a:hover {
  border-color: var(--accent);
  color: var(--accent-strong);
  transform: translateX(3px);
}

.machine-links span {
  flex: 0 0 auto;
  padding: 3px 6px;
  background: var(--accent);
  color: #071016;
  font-size: 9px;
  font-weight: 800;
}

.reference-section {
  padding: 72px 0;
  border-bottom: 1px solid var(--border);
}

.skill-grid,
.release-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin-top: 34px;
}

.skill-card,
.release-card {
  position: relative;
  min-width: 0;
  padding: 26px;
  overflow: hidden;
  border: 1px solid var(--border);
  background: linear-gradient(145deg, var(--surface), var(--bg-elevated));
}

.skill-card::before,
.release-card::before {
  position: absolute;
  inset: 0 auto 0 0;
  width: 2px;
  background: var(--border-strong);
  content: "";
}

.skill-card.accent-blue::before,
.release-card.is-current::before {
  background: var(--accent);
}

.skill-card.accent-green::before {
  background: var(--green);
}

.skill-card.accent-rose::before {
  background: var(--magenta);
}

.skill-card.accent-amber::before {
  background: var(--amber);
}

.skill-card.accent-cyan::before {
  background: #51e4da;
}

.card-topline {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  color: var(--subtle);
  font-family: var(--font-mono);
  font-size: 10px;
}

.kind-pill {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 4px 7px;
  border: 1px solid var(--border-strong);
  background: var(--surface-strong);
  color: var(--text-soft);
  font-family: var(--font-mono);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.055em;
  text-transform: uppercase;
}

.kind-live,
.kind-stable {
  border-color: #2d7054;
  background: var(--green-wash);
  color: var(--green);
}

.kind-beta {
  border-color: #765d2c;
  background: #2b2314;
  color: var(--amber);
}

.kind-watch {
  border-color: #6f3562;
  background: var(--magenta-wash);
  color: #ff9be5;
}

.skill-card h3,
.release-card h3 {
  margin: 21px 0 10px;
  color: var(--text);
  font-size: 21px;
  letter-spacing: -0.025em;
  overflow-wrap: anywhere;
}

.skill-card > p,
.release-card > p {
  color: var(--muted);
}

.compact-list {
  display: grid;
  gap: 7px;
  margin: 19px 0 24px;
  padding: 0;
  color: var(--text-soft);
  font-size: 13px;
  list-style: none;
}

.compact-list li {
  position: relative;
  padding-left: 15px;
}

.compact-list li::before {
  position: absolute;
  top: 0.72em;
  left: 0;
  width: 4px;
  height: 4px;
  background: var(--accent);
  content: "";
}

.card-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding-top: 19px;
  border-top: 1px solid var(--border);
}

.card-actions a {
  padding: 8px 10px;
  border: 1px solid var(--border-strong);
  color: var(--text-soft);
  font-family: var(--font-mono);
  font-size: 10px;
  transition: border-color var(--ease), background var(--ease), color var(--ease);
}

.card-actions a:hover {
  border-color: var(--accent);
  background: var(--accent-wash);
  color: var(--accent-strong);
}

.skill-card .hash-line {
  margin: 15px 0 0;
  color: var(--subtle);
  font-family: var(--font-mono);
  font-size: 9px;
  overflow-wrap: anywhere;
}

.skill-card .hash-line code {
  color: var(--text-soft);
}

/* XA Docs skill-card component parity --------------------------------- */

.skill-card {
  padding: 27px;
  border-radius: 9px;
  background: rgb(17 19 26 / 78%);
  transition: border-color var(--ease), transform var(--ease), background var(--ease);
}

.skill-card:hover {
  border-color: var(--border-strong);
  background: var(--surface);
  transform: translateY(-2px);
}

.skill-card-top,
.skill-card-actions,
.checksum-line {
  display: flex;
  align-items: center;
}

.skill-card-top {
  justify-content: space-between;
  gap: 14px;
}

.skill-category {
  color: var(--accent-strong);
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.skill-card.accent-green .skill-category { color: var(--green); }
.skill-card.accent-rose .skill-category { color: #ff9be5; }
.skill-card.accent-amber .skill-category { color: var(--amber); }
.skill-card.accent-cyan .skill-category { color: #7ceee7; }

.skill-card h3 {
  margin: 20px 0 9px;
  font-size: 22px;
  font-weight: 500;
  letter-spacing: -0.025em;
}

.skill-card h3 a {
  color: inherit;
}

.skill-card h3 a:hover {
  color: var(--accent-strong);
}

.skill-card > p:not(.checksum-line) {
  min-height: 50px;
  margin: 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.65;
}

.skill-card-facts {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin: 22px 0;
  padding: 15px 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.skill-card-facts div {
  min-width: 0;
  padding: 0 12px;
  border-right: 1px solid var(--border);
}

.skill-card-facts div:first-child { padding-left: 0; }
.skill-card-facts div:last-child { border-right: 0; }

.skill-card-facts dt {
  color: var(--subtle);
  font-family: var(--font-mono);
  font-size: 8px;
  text-transform: uppercase;
}

.skill-card-facts dd {
  overflow: hidden;
  margin: 4px 0 0;
  color: var(--text-soft);
  font-size: 12px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.skill-card-facts code {
  color: #b5c1ff;
  font-family: var(--font-mono);
  font-size: 0.92em;
}

.skill-card-actions {
  flex-wrap: wrap;
  gap: 13px;
}

.skill-card-actions .primary-button.compact {
  min-height: 36px;
  padding: 8px 14px;
  border: 1px solid #aeb8ff;
  background: #aeb8ff;
  color: #101225;
  font-size: 12px;
  box-shadow: none;
}

.skill-card-actions .primary-button.compact:hover { background: #c0c7ff; }

.skill-card-actions .text-button {
  color: var(--text-soft);
  font-size: 11px;
  font-weight: 600;
}

.skill-card-actions .text-button:hover { color: var(--accent-strong); }

.skill-card .checksum-line {
  min-width: 0;
  gap: 9px;
  margin: 18px 0 0;
  padding-top: 14px;
  border-top: 1px dashed var(--border);
}

.skill-card .checksum-line span {
  flex: 0 0 auto;
  color: var(--subtle);
  font-family: var(--font-mono);
  font-size: 8px;
}

.skill-card .checksum-line code {
  min-width: 0;
  overflow: hidden;
  color: #667084;
  font-family: var(--font-mono);
  font-size: 8px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.split-section {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(310px, 0.65fr);
  gap: 58px;
}

.split-section h2 {
  margin: 8px 0 18px;
  font-size: 34px;
  letter-spacing: -0.035em;
}

.split-section > div > p:not(.section-kicker) {
  color: var(--muted);
}

.evidence-panel {
  align-self: start;
  padding: 24px;
  border: 1px solid var(--border-strong);
  background: var(--surface);
}

.data-list {
  margin: 13px 0 18px;
}

.data-list div {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  padding: 11px 0;
  border-bottom: 1px solid var(--border);
}

.data-list dt {
  color: var(--muted);
  font-size: 12px;
}

.data-list dd {
  margin: 0;
  color: var(--text-soft);
  font-family: var(--font-mono);
  font-size: 10px;
  text-align: right;
}

.pass-text {
  color: var(--green) !important;
}

.warn-text {
  color: var(--amber) !important;
}

.text-arrow {
  display: inline-flex;
  color: var(--accent-strong);
  font-size: 12px;
  font-weight: 600;
}

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

.notice-block {
  display: grid;
  grid-template-columns: minmax(230px, 0.55fr) minmax(0, 1fr);
  gap: 38px;
  margin-top: 54px;
  padding: 30px;
  border: 1px solid var(--border);
  background: var(--surface);
}

.notice-block ol,
.notice-block ul {
  display: grid;
  gap: 9px;
  margin: 0;
  padding-left: 21px;
  color: var(--text-soft);
  font-size: 13px;
}

.notice-block > p {
  grid-column: 2;
  font-size: 12px;
}

.snapshot-panel {
  margin-top: 38px;
  padding: 30px;
  border: 1px solid #2f6651;
  background: linear-gradient(145deg, rgb(18 41 31 / 80%), var(--surface));
}

.snapshot-heading {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 20px;
}

.snapshot-heading h2 {
  margin: 7px 0 0;
  font-size: 25px;
  letter-spacing: -0.025em;
}

.snapshot-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  margin-top: 26px;
  background: var(--border);
}

.snapshot-grid > div {
  display: grid;
  align-content: start;
  min-width: 0;
  gap: 6px;
  padding: 18px;
  background: var(--bg-elevated);
}

.snapshot-grid span {
  color: var(--subtle);
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.055em;
  text-transform: uppercase;
}

.snapshot-grid strong {
  color: var(--text);
  font-size: 18px;
  overflow-wrap: anywhere;
}

.snapshot-grid code {
  color: var(--green);
  font-family: var(--font-mono);
  font-size: 9px;
  overflow-wrap: anywhere;
}

.snapshot-grid a {
  margin-top: 6px;
  color: var(--accent-strong);
  font-size: 10px;
}

.snapshot-note {
  margin: 19px 0 0;
  color: var(--muted);
  font-size: 12px;
}

.snapshot-note code,
.release-meta code,
.reference-table code,
.article-body code {
  color: var(--accent-strong);
  font-family: var(--font-mono);
}

.release-card .version-range {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 22px 0 0;
  color: var(--text);
  font-family: var(--font-mono);
}

.version-range span {
  padding: 6px 8px;
  border: 1px solid var(--border-strong);
  background: var(--surface-strong);
  font-size: 12px;
}

.version-range b {
  color: var(--subtle);
  font-weight: 400;
}

.release-card h3 {
  margin-top: 17px;
}

.release-card > p:not(.version-range) {
  min-height: 68px;
  margin-bottom: 19px;
  font-size: 13px;
}

.release-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 19px;
}

.release-meta span {
  padding: 4px 7px;
  border: 1px solid var(--border);
  color: var(--subtle);
  font-family: var(--font-mono);
  font-size: 9px;
}

/* XA Docs release-card component parity ------------------------------ */

.release-card {
  padding: 27px;
  border-radius: 9px;
  background: rgb(17 19 26 / 78%);
  transition: border-color var(--ease), transform var(--ease), background var(--ease);
}

.release-card:hover {
  border-color: var(--border-strong);
  background: var(--surface);
  transform: translateY(-2px);
}

.release-card.is-stable::before { background: var(--green); }
.release-card.is-beta::before { background: var(--amber); }
.release-card.is-watch::before { background: var(--magenta); }

.release-card-top,
.release-card-actions,
.release-card .checksum-line {
  display: flex;
  align-items: center;
}

.release-card-top {
  justify-content: space-between;
  gap: 14px;
}

.release-category {
  color: var(--accent-strong);
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.release-category.stable { color: var(--green); }
.release-category.beta { color: var(--amber); }
.release-category.watch { color: #ff9be5; }

.release-card h3 {
  margin: 20px 0 9px;
  font-size: 22px;
  font-weight: 500;
  letter-spacing: -0.025em;
}

.release-card h3 a { color: inherit; }
.release-card h3 a:hover { color: var(--accent-strong); }

.release-card > p:not(.checksum-line) {
  min-height: 64px;
  margin: 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.65;
}

.release-card-facts {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin: 22px 0;
  padding: 15px 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.release-card-facts div {
  min-width: 0;
  padding: 0 12px;
  border-right: 1px solid var(--border);
}

.release-card-facts div:first-child { padding-left: 0; }
.release-card-facts div:last-child { border-right: 0; }

.release-card-facts dt {
  color: var(--subtle);
  font-family: var(--font-mono);
  font-size: 8px;
  text-transform: uppercase;
}

.release-card-facts dd {
  overflow: hidden;
  margin: 4px 0 0;
  color: var(--text-soft);
  font-size: 12px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.release-card-facts code {
  color: #b5c1ff;
  font-family: var(--font-mono);
  font-size: 0.92em;
}

.release-card-actions {
  flex-wrap: wrap;
  gap: 13px;
}

.release-card-actions .primary-button.compact {
  min-height: 36px;
  padding: 8px 14px;
  border: 1px solid #aeb8ff;
  background: #aeb8ff;
  color: #101225;
  font-size: 12px;
  box-shadow: none;
}

.release-card-actions .primary-button.compact:hover { background: #c0c7ff; }

.release-card-actions .text-button {
  color: var(--text-soft);
  font-size: 11px;
  font-weight: 600;
}

.release-card-actions .text-button:hover { color: var(--accent-strong); }

.release-card .checksum-line {
  min-width: 0;
  min-height: 0;
  gap: 9px;
  margin: 18px 0 0;
  padding-top: 14px;
  border-top: 1px dashed var(--border);
}

.release-card .checksum-line span {
  flex: 0 0 auto;
  color: var(--subtle);
  font-family: var(--font-mono);
  font-size: 8px;
}

.release-card .checksum-line code {
  min-width: 0;
  overflow: hidden;
  color: #667084;
  font-family: var(--font-mono);
  font-size: 8px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.table-wrap {
  margin-top: 28px;
  overflow-x: auto;
  border: 1px solid var(--border);
}

.reference-table {
  width: 100%;
  min-width: 670px;
  border-collapse: collapse;
  background: var(--surface);
  font-size: 12px;
}

.reference-table th,
.reference-table td {
  padding: 13px 15px;
  border-bottom: 1px solid var(--border);
  text-align: left;
  vertical-align: top;
}

.reference-table th {
  background: var(--bg-elevated);
  color: var(--subtle);
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.reference-table td {
  color: var(--text-soft);
}

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

.reference-table tbody tr:hover td {
  background: var(--surface-strong);
}

.reference-table a {
  color: var(--accent-strong);
  text-decoration: underline;
  text-decoration-color: rgb(153 226 255 / 28%);
  text-underline-offset: 3px;
}

.table-status {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 9px;
}

.table-status.stable {
  color: var(--green);
}

.table-status.beta {
  color: var(--amber);
}

.table-status.watch {
  color: #ff9be5;
}

/* Long-form guide */

.article-hero {
  max-width: 1040px;
}

.article-hero h1 {
  max-width: 940px;
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 22px;
  margin-top: 32px;
  color: var(--subtle);
  font-family: var(--font-mono);
  font-size: 10px;
}

.article-layout {
  display: grid;
  grid-template-columns: minmax(0, 850px) minmax(240px, 1fr);
  gap: 70px;
  padding-top: 56px;
}

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

.article-body section {
  scroll-margin-top: calc(var(--header-height) + 24px);
  padding: 22px 0 54px;
  border-bottom: 1px solid var(--border);
}

.article-body h2 {
  max-width: 720px;
  margin: 9px 0 20px;
  font-size: clamp(29px, 3.4vw, 42px);
  letter-spacing: -0.04em;
  line-height: 1.08;
}

.article-body h3 {
  margin: 31px 0 10px;
  color: var(--text-soft);
  font-size: 14px;
  letter-spacing: 0.015em;
}

.article-body p,
.article-body li {
  color: var(--muted);
}

.article-body p {
  max-width: 760px;
  font-size: 15px;
  line-height: 1.78;
}

.article-body pre {
  max-width: 100%;
  margin: 12px 0 25px;
  padding: 20px;
  overflow-x: auto;
  border: 1px solid var(--border-strong);
  background: #08090c;
  color: #d5e9f2;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.7;
  tab-size: 2;
}

.article-body pre code {
  color: inherit;
}

.article-notice {
  padding: 22px !important;
  border: 1px solid #285c76 !important;
  background: var(--accent-wash);
  color: var(--text-soft);
  font-size: 13px;
  line-height: 1.7;
}

.article-notice strong {
  color: var(--accent-strong);
}

.article-body .table-wrap {
  margin-top: 24px;
}

.architecture-stack {
  display: grid;
  gap: 7px;
  margin: 26px 0;
}

.architecture-stack > div {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  gap: 16px;
  padding: 17px;
  border: 1px solid var(--border);
  background: var(--surface);
}

.architecture-stack > div > span {
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 12px;
}

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

.architecture-stack p {
  margin: 4px 0 0;
  font-size: 12px;
  line-height: 1.6;
}

.flow-line {
  display: flex;
  align-items: stretch;
  gap: 7px;
  margin: 26px 0;
  overflow-x: auto;
}

.flow-line span {
  display: grid;
  min-width: 105px;
  place-items: center;
  padding: 13px 10px;
  border: 1px solid var(--border-strong);
  background: var(--surface);
  color: var(--text-soft);
  font-family: var(--font-mono);
  font-size: 10px;
  text-align: center;
}

.flow-line b {
  align-self: center;
  color: var(--subtle);
}

.principle-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 9px;
  margin-top: 28px;
}

.principle-grid > div {
  padding: 17px;
  border: 1px solid var(--border);
  background: var(--surface);
}

.principle-grid strong {
  color: var(--text-soft);
  font-size: 13px;
}

.principle-grid p {
  margin: 7px 0 0;
  font-size: 11px;
  line-height: 1.55;
}

.workflow-list {
  display: grid;
  gap: 0;
  margin: 25px 0 0;
  padding: 0;
  counter-reset: workflow;
  list-style: none;
}

.workflow-list li {
  display: grid;
  grid-template-columns: 190px minmax(0, 1fr);
  gap: 22px;
  padding: 17px 0;
  border-bottom: 1px solid var(--border);
  counter-increment: workflow;
}

.workflow-list strong {
  color: var(--text-soft);
  font-size: 13px;
}

.workflow-list strong::before {
  margin-right: 9px;
  color: var(--accent);
  content: counter(workflow, decimal-leading-zero);
  font-family: var(--font-mono);
  font-size: 9px;
}

.workflow-list span {
  font-size: 13px;
}

.check-list {
  display: grid;
  gap: 0;
  margin: 25px 0 0;
  padding: 0;
  list-style: none;
}

.check-list li {
  position: relative;
  padding: 13px 0 13px 31px;
  border-bottom: 1px solid var(--border);
  font-size: 13px;
}

.check-list li::before {
  position: absolute;
  top: 15px;
  left: 4px;
  color: var(--green);
  content: "✓";
  font-weight: 800;
}

.source-list {
  display: grid;
  gap: 8px;
  margin-top: 25px;
}

.source-list a {
  display: grid;
  align-items: center;
  grid-template-columns: 44px minmax(0, 1fr) minmax(180px, 0.7fr);
  gap: 16px;
  padding: 15px;
  border: 1px solid var(--border);
  background: var(--surface);
  transition: border-color var(--ease), transform var(--ease);
}

.source-list a:hover {
  border-color: var(--accent);
  transform: translateX(4px);
}

.source-list a > span {
  padding: 5px;
  background: var(--accent-wash);
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 9px;
  text-align: center;
}

.source-list strong {
  color: var(--text-soft);
  font-size: 13px;
}

.source-list small {
  color: var(--subtle);
  font-size: 11px;
  text-align: right;
}

.article-rail {
  min-width: 0;
}

.rail-sticky {
  position: sticky;
  top: calc(var(--header-height) + 28px);
  padding: 22px;
  border: 1px solid var(--border);
  background: var(--surface);
}

.rail-sticky blockquote {
  margin: 13px 0 8px;
  color: var(--text);
  font-size: 22px;
  font-weight: 600;
  letter-spacing: -0.03em;
  line-height: 1.2;
}

.rail-sticky > p:not(.rail-label) {
  color: var(--muted);
  font-size: 12px;
}

.rail-sticky hr {
  height: 1px;
  margin: 21px 0;
  border: 0;
  background: var(--border);
}

.rail-text-link {
  display: block;
  margin-top: 9px;
  color: var(--accent-strong);
  font-family: var(--font-mono);
  font-size: 9px;
  overflow-wrap: anywhere;
}

@media (max-width: 1180px) {
  .snapshot-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .article-layout {
    grid-template-columns: minmax(0, 1fr) 240px;
    gap: 42px;
  }

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

@media (max-width: 960px) {
  .reference-main,
  .article-main {
    padding-right: 30px;
    padding-left: 30px;
  }

  .machine-callout,
  .split-section,
  .notice-block,
  .article-layout {
    grid-template-columns: 1fr;
  }

  .notice-block > p {
    grid-column: 1;
  }

  .article-rail {
    display: none;
  }
}

@media (max-width: 700px) {
  .reference-main,
  .article-main {
    padding-right: 20px;
    padding-left: 20px;
  }

  .reference-hero,
  .article-hero {
    padding-top: 54px;
    padding-bottom: 45px;
  }

  .reference-hero h1,
  .article-hero h1 {
    font-size: clamp(38px, 11.5vw, 56px);
  }

  .reference-lede {
    font-size: 16px;
  }

  .fact-strip {
    align-items: flex-start;
    flex-direction: column;
  }

  .fact-strip span + span::before {
    display: none;
  }

  .machine-callout,
  .snapshot-panel,
  .notice-block {
    padding: 21px;
  }

  .skill-grid,
  .release-grid,
  .snapshot-grid,
  .principle-grid {
    grid-template-columns: 1fr;
  }

  .reference-section {
    padding: 54px 0;
  }

  .skill-card,
  .release-card {
    padding: 22px;
  }

  .snapshot-heading {
    align-items: flex-start;
    flex-direction: column;
  }

  .workflow-list li {
    grid-template-columns: 1fr;
    gap: 6px;
  }

  .source-list a {
    grid-template-columns: 38px minmax(0, 1fr);
  }

  .source-list small {
    grid-column: 2;
    text-align: left;
  }

  .article-body pre {
    margin-right: -8px;
    margin-left: -8px;
    padding: 16px;
    font-size: 10px;
  }
}

/* Manifest-backed skill source viewer ----------------------------------- */

.viewer-main {
  width: min(100%, 1440px);
  margin: 0 auto;
  padding: 0 34px 90px;
}

.viewer-intro {
  display: flex;
  min-height: 235px;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
  padding: 38px 0 34px;
}

.viewer-intro h1 {
  margin: 13px 0 10px;
  font-size: clamp(39px, 5vw, 61px);
  font-weight: 600;
  letter-spacing: -0.05em;
  line-height: 1;
  overflow-wrap: anywhere;
}

.viewer-intro > div > p:not(.eyebrow) {
  max-width: 720px;
  margin: 0;
  color: var(--muted);
  font-size: 15px;
}

.viewer-primary-actions {
  display: flex;
  flex: 0 0 auto;
  gap: 9px;
}

.secondary-button {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  padding: 0 18px;
  border: 1px solid var(--border-strong);
  border-radius: 6px;
  color: var(--text-soft);
  font-weight: 600;
  transition: border-color var(--ease), background var(--ease), color var(--ease);
}

.secondary-button:hover {
  border-color: var(--accent);
  background: var(--accent-wash);
  color: var(--accent-strong);
}

.viewer-trust {
  display: grid;
  grid-template-columns: auto minmax(130px, 0.7fr) 80px minmax(260px, 1.4fr);
  align-items: center;
  margin-bottom: 14px;
  border: 1px solid var(--border);
  background: var(--surface);
}

.viewer-trust > div {
  min-width: 0;
  padding: 16px 20px;
  border-right: 1px solid var(--border);
}

.viewer-trust > div:last-child { border-right: 0; }
.viewer-trust small { display: block; color: var(--subtle); font-family: var(--font-mono); font-size: 8px; text-transform: uppercase; }
.viewer-trust code,
.viewer-trust strong { display: block; overflow: hidden; margin-top: 3px; color: var(--text-soft); font-family: var(--font-mono); font-size: 10px; text-overflow: ellipsis; white-space: nowrap; }

.scan-badge {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  color: var(--green);
  font-family: var(--font-mono);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.scan-badge i {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: currentcolor;
  box-shadow: 0 0 0 4px rgb(117 215 173 / 9%);
}

.review-badge.is-historical { color: var(--amber); }
.review-badge.is-superseded { color: #ff9be5; }
.review-badge.is-historical i { box-shadow: 0 0 0 4px rgb(240 184 98 / 9%); }
.review-badge.is-superseded i { box-shadow: 0 0 0 4px rgb(255 155 229 / 9%); }

.source-workbench {
  display: grid;
  min-height: 690px;
  grid-template-columns: 285px minmax(0, 1fr);
  overflow: hidden;
  border: 1px solid var(--border-strong);
  background: #0a0c10;
  box-shadow: 0 22px 70px rgb(0 0 0 / 24%);
}

.file-sidebar {
  display: flex;
  min-width: 0;
  flex-direction: column;
  border-right: 1px solid var(--border);
  background: #0d0f14;
}

.file-sidebar-heading,
.code-toolbar {
  min-height: 58px;
  border-bottom: 1px solid var(--border);
}

.file-sidebar-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 17px;
}

.file-sidebar-heading p { margin: 0; color: var(--text-soft); font-size: 12px; font-weight: 600; }
.file-sidebar-heading span { display: grid; width: 22px; height: 22px; place-items: center; background: var(--surface-strong); color: var(--subtle); font-family: var(--font-mono); font-size: 9px; }

.file-tree {
  flex: 1;
  overflow: auto;
  padding: 9px;
}

.file-tree-item {
  display: grid;
  width: 100%;
  grid-template-columns: 22px minmax(0, 1fr) auto;
  align-items: center;
  gap: 6px;
  margin: 1px 0;
  padding: 9px 8px 9px calc(8px + var(--file-depth) * 11px);
  border: 0;
  border-radius: 4px;
  background: transparent;
  color: var(--muted);
  text-align: left;
  cursor: pointer;
}

.file-tree-item:hover { background: var(--surface-strong); color: var(--text-soft); }
.file-tree-item.is-selected { background: var(--accent-wash); color: var(--accent-strong); }
.file-tree-item > span { color: var(--subtle); font-family: var(--font-mono); font-size: 9px; }
.file-tree-item strong { min-width: 0; overflow: hidden; font-family: var(--font-mono); font-size: 9px; font-weight: 500; text-overflow: ellipsis; white-space: nowrap; }
.file-tree-item small { color: var(--subtle); font-family: var(--font-mono); font-size: 8px; }

.file-sidebar-note {
  margin: 12px;
  padding: 14px;
  border: 1px solid var(--border);
  background: var(--surface);
}

.file-sidebar-note strong { color: var(--green); font-size: 10px; }
.file-sidebar-note p { margin: 5px 0 0; color: var(--subtle); font-size: 9px; line-height: 1.55; }

.code-panel {
  display: grid;
  min-width: 0;
  grid-template-rows: auto auto minmax(0, 1fr) auto;
}

.code-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 0 17px;
  background: var(--surface);
}

.code-toolbar > div:first-child { display: flex; min-width: 0; align-items: center; gap: 10px; }
.code-toolbar strong { overflow: hidden; color: var(--text-soft); font-family: var(--font-mono); font-size: 10px; font-weight: 500; text-overflow: ellipsis; white-space: nowrap; }
.code-toolbar small { color: var(--subtle); font-family: var(--font-mono); font-size: 8px; }

.file-language {
  flex: 0 0 auto;
  padding: 3px 6px;
  background: var(--accent-wash);
  color: var(--accent-strong);
  font-family: var(--font-mono);
  font-size: 7px;
}

.code-actions { display: flex; flex: 0 0 auto; gap: 7px; }
.code-actions button,
.code-actions a {
  padding: 6px 9px;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: var(--surface-strong);
  color: var(--muted);
  font-family: inherit;
  font-size: 9px;
  cursor: pointer;
}
.code-actions button:hover,
.code-actions a:hover { border-color: var(--border-strong); color: var(--text); }

.code-status {
  padding: 18px;
  border-bottom: 1px solid var(--border);
  color: var(--subtle);
  font-family: var(--font-mono);
  font-size: 10px;
}

.source-code {
  min-height: 600px;
  max-height: 74vh;
  overflow: auto;
  margin: 0;
  padding: 25px 29px 44px;
  background: linear-gradient(90deg, rgb(255 255 255 / 1.2%) 1px, transparent 1px) 0 0 / 38px 100%, #0a0c10;
  color: #c9ced9;
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1.75;
  tab-size: 4;
}

.source-code code { font: inherit; white-space: pre; }

.code-footer {
  display: flex;
  min-width: 0;
  align-items: center;
  gap: 10px;
  padding: 11px 17px;
  border-top: 1px solid var(--border);
  color: var(--subtle);
  font-family: var(--font-mono);
  font-size: 8px;
}

.code-footer code { min-width: 0; overflow: hidden; color: #667084; text-overflow: ellipsis; white-space: nowrap; }

.viewer-help {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  margin-top: 65px;
  border: 1px solid var(--border);
  background: var(--border);
}

.viewer-help > div { padding: 26px; background: var(--bg); }
.viewer-help span { color: var(--accent-strong); font-family: var(--font-mono); font-size: 9px; }
.viewer-help h2 { margin: 12px 0 6px; font-size: 15px; font-weight: 500; }
.viewer-help p { margin: 0; color: var(--subtle); font-size: 11px; line-height: 1.6; }

.toast {
  position: fixed;
  z-index: 100;
  right: 22px;
  bottom: 22px;
  padding: 11px 14px;
  transform: translateY(18px);
  border: 1px solid var(--border-strong);
  background: var(--surface-strong);
  color: var(--text-soft);
  font-family: var(--font-mono);
  font-size: 10px;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--ease), transform var(--ease);
}

.toast.is-visible { transform: translateY(0); opacity: 1; }

@media (max-width: 1180px) {
  .viewer-intro { align-items: flex-start; flex-direction: column; justify-content: center; }
  .viewer-trust { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .viewer-trust > div:first-child { grid-column: 1 / -1; border-right: 0; border-bottom: 1px solid var(--border); }
}

@media (max-width: 960px) {
  .viewer-main { padding-right: 30px; padding-left: 30px; }
  .source-workbench { grid-template-columns: 1fr; }
  .file-sidebar { max-height: 270px; border-right: 0; border-bottom: 1px solid var(--border); }
  .file-sidebar-note { display: none; }
  .viewer-primary-actions { margin-top: 6px; }
  .viewer-trust { grid-template-columns: 1fr 1fr; }
  .viewer-trust > div:first-child { grid-column: 1 / -1; }
  .viewer-trust > div:nth-child(3) { border-right: 0; }
  .viewer-trust > div:last-child { grid-column: 1 / -1; border-top: 1px solid var(--border); }
  .viewer-help { grid-template-columns: 1fr; }
}

@media (max-width: 700px) {
  .viewer-main { padding-right: 20px; padding-left: 20px; }
  .viewer-intro { min-height: auto; padding-top: 54px; }
  .viewer-intro h1 { font-size: clamp(36px, 11vw, 52px); }
  .viewer-primary-actions { display: grid; width: 100%; }
  .viewer-trust { grid-template-columns: 1fr; }
  .viewer-trust > div { border-right: 0; border-bottom: 1px solid var(--border); }
  .viewer-trust > div:first-child,
  .viewer-trust > div:last-child { grid-column: auto; border-top: 0; }
  .viewer-trust > div:last-child { border-bottom: 0; }
  .code-toolbar { display: block; height: auto; padding: 12px; }
  .code-actions { margin-top: 11px; }
  .source-code { min-height: 480px; padding: 20px 17px 35px; font-size: 10px; }
}

@media (max-width: 520px) {
  .skill-card,
  .release-card { padding: 21px; }
  .skill-card-top,
  .release-card-top { align-items: flex-start; }
  .skill-card .scan-badge,
  .release-card .scan-badge { font-size: 8px; }
  .skill-card-facts,
  .release-card-facts { grid-template-columns: 1fr; }
  .skill-card-facts div,
  .release-card-facts div { padding: 8px 0; border-right: 0; border-bottom: 1px solid var(--border); }
  .skill-card-facts div:last-child,
  .release-card-facts div:last-child { border-bottom: 0; }
}