:root {
  --paper: #f6f5f1;
  --paper-deep: #efede7;
  --ink: #171816;
  --muted: #62645f;
  --faint: #8a8c86;
  --rule: #cfcec8;
  --rule-strong: #a9aaa4;
  --accent: #d94f12;
  --accent-dark: #a9370a;
  --active: #247329;
  --research: #17678b;
  --paused: #b24716;
  --archived: #737570;
  --content-max: 1240px;
  --sans: "Helvetica Neue", Helvetica, Arial, ui-sans-serif, system-ui, sans-serif;
  --mono: "SFMono-Regular", "Roboto Mono", "Liberation Mono", Menlo, monospace;
}

* {
  box-sizing: border-box;
}

html {
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.55;
  overflow-x: clip;
  scroll-behavior: smooth;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

body {
  margin: 0;
  min-width: 320px;
  background: var(--paper);
}

.home-page {
  overflow-x: hidden;
}

button,
input,
select,
textarea {
  color: inherit;
  font: inherit;
}

a {
  color: inherit;
  text-underline-offset: 0.22em;
  text-decoration-thickness: 1px;
  text-decoration-color: var(--rule-strong);
}

a:hover {
  color: var(--accent-dark);
  text-decoration-color: var(--accent);
}

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

[hidden] {
  display: none !important;
}

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

.mono {
  font-family: var(--mono);
}

.skip-link {
  position: fixed;
  z-index: 100;
  top: 0.75rem;
  left: 0.75rem;
  padding: 0.6rem 0.8rem;
  background: var(--ink);
  color: var(--paper);
  transform: translateY(-180%);
}

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

.site-header {
  position: relative;
  z-index: 20;
  min-height: 68px;
  padding: 0 30px;
  border-bottom: 1px solid var(--rule);
  display: grid;
  grid-template-columns: minmax(190px, 1fr) auto minmax(190px, 1fr);
  align-items: stretch;
  background: rgba(246, 245, 241, 0.96);
}

.site-brand,
.site-contact,
.site-nav a {
  display: flex;
  align-items: center;
  text-decoration: none;
}

.site-brand {
  width: max-content;
  font-size: 1.22rem;
  font-weight: 650;
  letter-spacing: -0.02em;
}

.site-contact {
  justify-self: end;
  font-size: 0.95rem;
}

.site-nav {
  display: flex;
  gap: 34px;
}

.site-nav a {
  position: relative;
  padding: 0 2px;
  font-size: 0.98rem;
}

.site-nav a[aria-current="page"] {
  color: var(--accent);
}

.site-nav a[aria-current="page"]::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: -1px;
  left: 0;
  height: 3px;
  background: var(--accent);
}

.catalog-shell {
  display: grid;
  grid-template-columns: 236px minmax(0, 1fr);
  min-height: calc(100vh - 68px);
}

.catalog-rail {
  position: sticky;
  top: 0;
  align-self: start;
  height: calc(100vh - 68px);
  padding: 48px 30px 40px;
  border-right: 1px dotted var(--rule);
  overflow-y: auto;
  scrollbar-width: thin;
}

.rail-kicker,
.eyebrow {
  margin: 0;
  color: var(--accent);
  font-family: var(--mono);
  font-size: 0.72rem;
  font-weight: 650;
  letter-spacing: 0.055em;
  text-transform: uppercase;
}

.rail-meta {
  margin: 34px 0 0;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.rail-meta div + div {
  margin-top: 0.8rem;
}

.rail-meta dt,
.rail-meta dd {
  margin: 0;
}

.rail-meta dd {
  margin-top: 0.24rem;
  color: var(--ink);
}

.rail-domains {
  margin-top: 48px;
}

.rail-domains > p {
  margin: 0 0 16px;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.rail-domains ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.rail-domains li {
  display: grid;
  grid-template-columns: 43px 1fr;
  min-height: 40px;
  align-items: center;
  font-size: 0.82rem;
}

.rail-domains li span {
  font-family: var(--mono);
}

.rail-domains li[aria-current="true"] {
  color: var(--accent-dark);
  font-weight: 650;
}

.rail-process {
  display: block;
  width: 100%;
  height: auto;
  margin-top: 28px;
  mix-blend-mode: multiply;
}

.page-main {
  width: 100%;
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 70px 48px 86px;
}

.page-intro {
  display: grid;
  grid-template-columns: minmax(0, 720px) auto;
  justify-content: space-between;
  gap: 50px;
}

.page-intro h1,
.home-intro h1,
.record-header h1 {
  margin: 0;
  font-size: clamp(2.7rem, 5vw, 4.8rem);
  font-weight: 560;
  letter-spacing: -0.055em;
  line-height: 0.98;
}

.compendium-main .page-intro h1 {
  font-size: clamp(2.7rem, 4.1vw, 3.75rem);
}

.page-intro .eyebrow,
.home-intro .eyebrow {
  margin-bottom: 18px;
}

.lede {
  max-width: 720px;
  margin: 28px 0 0;
  color: #353733;
  font-size: clamp(1.08rem, 1.7vw, 1.3rem);
  line-height: 1.65;
}

.catalog-number {
  margin: 5px 0 0;
  color: var(--muted);
  font-size: 0.72rem;
  letter-spacing: 0.045em;
  line-height: 1.8;
  text-transform: uppercase;
  white-space: nowrap;
}

.compendium-controls {
  display: grid;
  grid-template-columns: minmax(220px, 1.7fr) repeat(4, minmax(126px, 1fr)) auto;
  gap: 12px;
  align-items: end;
  margin: 40px 0 0;
  padding: 0 0 30px;
  border-bottom: 1px solid var(--rule-strong);
}

.compendium-controls label {
  display: block;
}

.compendium-controls label > span {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.compendium-controls input,
.compendium-controls select {
  width: 100%;
  height: 54px;
  border: 1px solid var(--rule-strong);
  border-radius: 2px;
  background: transparent;
  padding: 0 15px;
}

.compendium-controls input::placeholder {
  color: var(--faint);
}

.project-count {
  min-width: 90px;
  padding: 0 0 15px 14px;
  color: var(--research);
  font-family: var(--mono);
  font-size: 0.8rem;
  white-space: nowrap;
}

.project-table-heading,
.project-row {
  display: grid;
  grid-template-columns:
    64px minmax(280px, 1fr) 75px 105px
    85px 55px 92px;
  column-gap: 12px;
  align-items: center;
}

.project-table-heading {
  min-width: 850px;
  min-height: 58px;
  color: var(--muted);
  font-size: 0.68rem;
  letter-spacing: 0.045em;
  text-transform: uppercase;
}

.project-list {
  min-width: 850px;
}

.project-row {
  position: relative;
  min-height: 81px;
  border-top: 1px solid var(--rule);
}

.project-row:last-child {
  border-bottom: 1px solid var(--rule);
}

.project-row:hover {
  background: var(--paper-deep);
}

.project-index,
.project-domain,
.project-year {
  font-size: 0.78rem;
}

.project-index {
  color: var(--ink);
}

.project-identity {
  min-width: 0;
  padding: 13px 0;
}

.project-identity h2 {
  display: inline;
  margin: 0;
  font-size: 1rem;
  font-weight: 680;
  letter-spacing: -0.015em;
}

.project-identity h2 a {
  text-decoration: none;
}

.project-identity h2 a::after {
  content: "";
  position: absolute;
  inset: 0;
}

.project-identity p {
  display: inline;
  margin: 0 0 0 0.38em;
  color: var(--muted);
  font-family: var(--sans);
  font-size: 0.86rem;
  font-style: italic;
}

.project-domain span {
  display: inline-block;
}

.project-domain small {
  display: none;
}

.project-type,
.project-status {
  font-size: 0.82rem;
}

.status {
  font-size: 0.78rem;
  font-weight: 620;
}

.status--active {
  color: var(--active);
}

.status--research {
  color: var(--research);
}

.status--shipped {
  color: var(--research);
}

.status--paused {
  color: var(--paused);
}

.status--archived {
  color: var(--archived);
}

.project-year {
  color: var(--muted);
}

.project-open {
  position: relative;
  z-index: 2;
  justify-self: end;
  color: var(--accent-dark);
  font-size: 0.8rem;
  text-decoration: underline;
  text-decoration-color: transparent;
}

.project-open:hover {
  text-decoration-color: currentColor;
}

.empty-state {
  margin-top: 28px;
  padding: 42px;
  border: 1px solid var(--rule);
  text-align: center;
}

.empty-state p {
  margin: 0 0 16px;
}

.empty-state button {
  border: 0;
  padding: 0;
  background: transparent;
  color: var(--accent-dark);
  text-decoration: underline;
  cursor: pointer;
}

.home-main {
  padding-top: 80px;
}

.home-intro {
  position: relative;
  isolation: isolate;
  max-width: 1000px;
  padding-bottom: 84px;
}

.home-intro > :not(.solar-system) {
  position: relative;
  z-index: 1;
}

.home-intro h1 {
  max-width: 930px;
  font-size: clamp(3.1rem, 6.5vw, 6.3rem);
  line-height: 0.98;
}

.home-intro .lede {
  max-width: 760px;
}

.home-actions {
  display: flex;
  gap: 28px;
  margin-top: 34px;
  align-items: center;
}

.text-link {
  color: var(--accent-dark);
  font-weight: 650;
}

.quiet-link {
  color: var(--muted);
}

.solar-system {
  position: absolute;
  z-index: 0;
  top: -120px;
  right: -14%;
  width: min(52vw, 620px);
  aspect-ratio: 1;
  opacity: 0.42;
  pointer-events: none;
}

.solar-sun,
.solar-orbit {
  position: absolute;
  top: 50%;
  left: 50%;
  display: block;
  border-radius: 50%;
  transform: translate(-50%, -50%);
}

.solar-sun {
  width: 14px;
  height: 14px;
  background: var(--accent);
}

.solar-orbit {
  border: 1px solid rgba(169, 170, 164, 0.72);
  animation: solar-orbit linear infinite;
}

.solar-orbit i {
  position: absolute;
  top: 50%;
  left: 0;
  display: block;
  border: 1px solid var(--rule-strong);
  border-radius: 50%;
  background: var(--paper);
  transform: translate(-50%, -50%);
}

.solar-orbit--one {
  width: 22%;
  height: 22%;
  animation-duration: 22s;
}

.solar-orbit--one i {
  width: 6px;
  height: 6px;
  background: var(--ink);
}

.solar-orbit--two {
  width: 42%;
  height: 42%;
  border-style: dotted;
  animation-duration: 36s;
  animation-direction: reverse;
}

.solar-orbit--two i {
  width: 9px;
  height: 9px;
  background: var(--paper-deep);
}

.solar-orbit--three {
  width: 67%;
  height: 67%;
  animation-duration: 58s;
}

.solar-orbit--three i {
  width: 12px;
  height: 12px;
  border-color: var(--accent);
  background: var(--paper);
}

.solar-orbit--four {
  width: 94%;
  height: 94%;
  border-style: dotted;
  animation-duration: 86s;
  animation-direction: reverse;
}

.solar-orbit--four i {
  width: 7px;
  height: 7px;
  background: var(--muted);
}

@keyframes solar-orbit {
  to {
    transform: translate(-50%, -50%) rotate(1turn);
  }
}

.recent-work {
  padding-top: 46px;
  border-top: 1px solid var(--rule-strong);
}

.recent-activity {
  display: grid;
  grid-template-columns: minmax(180px, 1fr) auto;
  gap: 18px 38px;
  align-items: end;
  padding: 22px 0 26px;
  border-top: 1px dotted var(--rule);
  border-bottom: 1px solid var(--rule-strong);
}

.recent-activity-heading {
  align-self: center;
}

.recent-activity-heading p {
  margin: 0;
  color: var(--muted);
  font-size: 0.72rem;
  letter-spacing: 0.035em;
  text-transform: uppercase;
}

.recent-activity-heading p + p {
  margin-top: 4px;
  color: var(--faint);
}

.recent-activity-grid {
  display: grid;
  grid-template-rows: repeat(7, 11px);
  grid-auto-flow: column;
  grid-auto-columns: 11px;
  gap: 3px;
}

.recent-activity-cell,
.recent-activity-legend i {
  display: block;
  border: 1px solid var(--rule);
  border-radius: 1px;
  background: var(--paper-deep);
}

.recent-activity-cell[data-level="1"],
.recent-activity-legend i[data-level="1"] {
  border-color: #e5a98e;
  background: #edbea8;
}

.recent-activity-cell[data-level="2"],
.recent-activity-legend i[data-level="2"] {
  border-color: var(--accent);
  background: var(--accent);
}

.recent-activity-cell[data-level="3"],
.recent-activity-cell[data-level="4"] {
  border-color: var(--accent-dark);
  background: var(--accent-dark);
}

.recent-activity-legend {
  grid-column: 2;
  display: flex;
  gap: 6px;
  justify-content: flex-end;
  align-items: center;
  color: var(--faint);
  font-size: 0.65rem;
  text-transform: uppercase;
}

.recent-activity-legend i {
  width: 11px;
  height: 11px;
}

.recent-update-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.recent-update-row {
  display: grid;
  grid-template-columns: 132px minmax(0, 1fr) auto;
  gap: 28px;
  align-items: center;
  min-height: 118px;
  padding: 22px 0;
  border-bottom: 1px dotted var(--rule);
}

.recent-update-row time {
  align-self: start;
  padding-top: 3px;
  color: var(--muted);
  font-size: 0.72rem;
  letter-spacing: 0.025em;
  text-transform: uppercase;
}

.recent-update-row div > p:first-child {
  margin: 0 0 5px;
  color: var(--accent-dark);
  font-size: 0.68rem;
  font-weight: 650;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.recent-update-row h3 {
  margin: 0;
  font-size: 1.18rem;
  font-weight: 620;
  letter-spacing: -0.02em;
}

.recent-update-row h3 a {
  text-decoration: none;
}

.recent-update-row div > p:last-child {
  max-width: 720px;
  margin: 7px 0 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.recent-update-open {
  color: var(--accent-dark);
  font-family: var(--mono);
  font-size: 0.72rem;
  font-weight: 650;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

.featured-work {
  margin-top: 78px;
  padding-top: 46px;
  border-top: 1px solid var(--rule-strong);
}

.section-heading {
  display: grid;
  grid-template-columns: 1fr minmax(260px, 440px);
  gap: 60px;
  align-items: end;
  margin-bottom: 24px;
}

.section-heading h2 {
  margin: 6px 0 0;
  font-size: clamp(2.2rem, 4vw, 3.6rem);
  font-weight: 560;
  letter-spacing: -0.045em;
}

.section-heading > p {
  margin: 0 0 6px;
  color: var(--muted);
}

.project-list--featured {
  min-width: 0;
}

.project-row--featured {
  grid-template-columns: 78px minmax(360px, 1fr) 110px 130px;
  min-height: 132px;
}

.project-row--featured .project-type,
.project-row--featured .project-status,
.project-row--featured .project-year {
  display: none;
}

.project-row--featured .project-domain small {
  display: block;
  margin-top: 4px;
  color: var(--muted);
  font-family: var(--sans);
  font-size: 0.72rem;
}

.project-row--featured .project-identity h2 {
  display: block;
  font-size: 1.25rem;
}

.project-row--featured .project-identity p {
  display: block;
  max-width: 660px;
  margin: 8px 0 0;
  font-family: var(--sans);
  font-size: 0.96rem;
  font-style: normal;
  line-height: 1.5;
}

.home-lab-preview {
  display: grid;
  grid-template-columns: minmax(260px, 0.9fr) minmax(320px, 1.1fr);
  gap: clamp(42px, 8vw, 96px);
  margin-top: 78px;
  padding: 48px 0;
  border-top: 1px solid var(--rule-strong);
  border-bottom: 1px solid var(--rule);
}

.home-lab-preview h2 {
  max-width: 560px;
  margin: 10px 0 0;
  font-size: clamp(1.8rem, 3.2vw, 3rem);
  font-weight: 560;
  letter-spacing: -0.045em;
  line-height: 1.08;
}

.home-lab-preview > div:last-child {
  align-self: end;
}

.home-lab-preview > div:last-child p {
  margin: 0 0 20px;
  color: var(--muted);
  font-size: 1.04rem;
  line-height: 1.7;
}

.home-thesis {
  display: grid;
  grid-template-columns: 180px minmax(0, 700px);
  gap: 60px;
  margin-top: 88px;
  padding: 48px 0;
  border-top: 1px solid var(--rule);
}

.home-thesis > p:last-child {
  margin: 0;
  font-size: 1.45rem;
  letter-spacing: -0.02em;
  line-height: 1.55;
}

.analytics-main {
  max-width: 1120px;
}

.analytics-intro {
  max-width: 830px;
}

.analytics-intro h1 {
  margin: 0;
  font-size: clamp(3rem, 6vw, 5.6rem);
  font-weight: 560;
  letter-spacing: -0.055em;
  line-height: 0.98;
}

.analytics-intro .eyebrow {
  margin-bottom: 18px;
}

.analytics-login {
  display: grid;
  grid-template-columns: minmax(240px, 1fr) minmax(180px, 0.45fr) auto;
  gap: 14px;
  align-items: end;
  margin-top: 48px;
  padding: 28px 0;
  border-top: 1px solid var(--rule-strong);
  border-bottom: 1px solid var(--rule-strong);
}

.analytics-login label {
  display: grid;
  gap: 7px;
  color: var(--muted);
  font-size: 0.78rem;
}

.analytics-login input,
.analytics-login select,
.analytics-login button {
  height: 52px;
  border: 1px solid var(--rule-strong);
  border-radius: 2px;
  background: transparent;
  padding: 0 14px;
}

.analytics-login button {
  border-color: var(--ink);
  background: var(--ink);
  color: var(--paper);
  cursor: pointer;
  font-weight: 650;
}

.analytics-message {
  grid-column: 1 / -1;
  min-height: 1.2em;
  margin: 0;
  color: var(--muted);
  font-size: 0.72rem;
}

.analytics-message[data-tone="error"] {
  color: var(--paused);
}

.analytics-message[data-tone="success"] {
  color: var(--active);
}

.analytics-dashboard {
  margin-top: 56px;
}

.analytics-range {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--rule-strong);
}

.analytics-range p {
  margin: 0;
}

.analytics-range p:last-child {
  color: var(--muted);
  font-size: 0.85rem;
}

.analytics-metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-bottom: 1px solid var(--rule-strong);
}

.analytics-metric {
  display: grid;
  min-height: 166px;
  padding: 24px 26px;
  align-content: space-between;
}

.analytics-metric + .analytics-metric {
  border-left: 1px dotted var(--rule);
}

.analytics-metric span {
  color: var(--muted);
  font-size: 0.7rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.analytics-metric strong {
  font-size: clamp(2.25rem, 5vw, 4rem);
  font-weight: 540;
  letter-spacing: -0.055em;
}

.analytics-metric small {
  color: var(--faint);
}

.analytics-breakdowns {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 54px 64px;
  margin-top: 60px;
}

.analytics-section-heading {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--rule-strong);
}

.analytics-section-heading h2 {
  margin: 0;
  font-size: 1.45rem;
  font-weight: 560;
  letter-spacing: -0.03em;
}

.analytics-section-heading span {
  color: var(--faint);
  font-size: 0.68rem;
  text-transform: uppercase;
}

.analytics-breakdowns ol {
  margin: 0;
  padding: 0;
  list-style: none;
}

.analytics-breakdowns li {
  padding: 13px 0 11px;
  border-bottom: 1px dotted var(--rule);
}

.analytics-breakdowns li > div {
  display: flex;
  gap: 18px;
  justify-content: space-between;
  font-size: 0.86rem;
}

.analytics-breakdowns li strong {
  font-weight: 500;
}

.analytics-bar {
  display: block;
  height: 3px;
  margin-top: 8px;
  background: var(--paper-deep);
}

.analytics-bar i {
  display: block;
  height: 100%;
  background: var(--accent);
}

.analytics-empty {
  margin: 18px 0;
  color: var(--muted);
}

.analytics-privacy {
  max-width: 720px;
  margin: 68px 0 0;
  padding-top: 18px;
  border-top: 1px solid var(--rule);
  color: var(--muted);
  font-size: 0.86rem;
}

.record-main {
  max-width: 1240px;
}

.article-breadcrumb {
  display: flex;
  gap: 9px;
  align-items: center;
  margin-bottom: 58px;
  color: var(--muted);
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.article-breadcrumb a {
  color: var(--accent-dark);
  text-decoration-color: transparent;
}

.article-header {
  max-width: 960px;
  padding-bottom: 48px;
  border-bottom: 1px solid var(--rule-strong);
}

.article-header h1 {
  margin-top: 18px;
  max-width: 940px;
  font-size: clamp(3rem, 6vw, 5.6rem);
  font-weight: 560;
  letter-spacing: -0.06em;
  line-height: 0.96;
}

.article-deck {
  max-width: 820px;
  margin: 30px 0 0;
  color: #343632;
  font-size: clamp(1.2rem, 2vw, 1.48rem);
  line-height: 1.55;
}

.article-edition {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 28px;
  margin-top: 34px;
  color: var(--muted);
  font-size: 0.7rem;
  letter-spacing: 0.035em;
  text-transform: uppercase;
}

.article-frame {
  display: grid;
  grid-template-columns: minmax(0, 730px) minmax(240px, 292px);
  gap: clamp(48px, 7vw, 96px);
  align-items: start;
  margin-top: 44px;
}

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

.article-lead {
  padding-bottom: 34px;
  border-bottom: 1px solid var(--rule);
}

.article-lead p {
  margin: 0;
  color: #242622;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 1.19rem;
  line-height: 1.78;
}

.article-lead p:first-child::first-letter {
  float: left;
  margin: 0.08em 0.09em 0 0;
  color: var(--accent-dark);
  font-family: var(--sans);
  font-size: 3.55em;
  font-weight: 590;
  line-height: 0.78;
}

.article-lead p + p {
  margin-top: 18px;
}

.article-lead strong {
  font-family: var(--sans);
  font-size: 0.86em;
  letter-spacing: 0.01em;
  text-transform: uppercase;
}

.article-contents {
  margin: 38px 0 12px;
  padding: 24px 26px 20px;
  border: 1px solid var(--rule);
  background: rgba(239, 237, 231, 0.45);
}

.article-contents > p {
  margin: 0 0 13px;
  color: var(--muted);
  font-size: 0.7rem;
  font-weight: 650;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.article-contents ol {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 5px 26px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.article-contents a {
  display: grid;
  grid-template-columns: 28px 1fr;
  gap: 8px;
  padding: 4px 0;
  font-size: 0.84rem;
  line-height: 1.4;
  text-decoration-color: transparent;
}

.article-contents a:hover {
  text-decoration-color: var(--accent);
}

.article-contents a span {
  color: var(--accent-dark);
  font-size: 0.68rem;
}

.article-section {
  padding: 56px 0 52px;
  border-bottom: 1px solid var(--rule);
  scroll-margin-top: 24px;
}

.article-section h2 {
  display: grid;
  grid-template-columns: 44px 1fr;
  gap: 12px;
  align-items: baseline;
  margin: 0 0 22px;
  font-size: clamp(1.45rem, 2.2vw, 1.86rem);
  font-weight: 610;
  letter-spacing: -0.035em;
  line-height: 1.2;
}

.article-section--essay h2 {
  display: block;
  max-width: 18ch;
}

.article-section-number {
  color: var(--accent);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.03em;
}

.article-section > p {
  margin: 0;
  color: #32342f;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 1.055rem;
  line-height: 1.82;
}

.article-section > p + p {
  margin-top: 18px;
}

.article-paragraph-label {
  font-family: var(--sans);
  font-size: 0.72em;
  font-weight: 700;
  letter-spacing: 0.055em;
  text-transform: uppercase;
}

.project-visual {
  margin: 46px 0 10px;
  padding: 0 0 34px;
  border-bottom: 1px solid var(--rule);
}

.project-visual-header {
  margin-bottom: 20px;
  padding-left: 16px;
  border-left: 4px solid var(--accent);
}

.project-visual-header p {
  margin: 0 0 8px;
  color: var(--accent-dark);
  font-size: 0.66rem;
  font-weight: 650;
  letter-spacing: 0.055em;
  text-transform: uppercase;
}

.project-visual-header h3 {
  max-width: 690px;
  margin: 0;
  font-size: clamp(1.45rem, 2.7vw, 2.25rem);
  font-weight: 590;
  letter-spacing: -0.045em;
  line-height: 1.12;
}

.project-visual-image,
.project-visual-gallery,
.project-visual-video {
  border: 1px solid var(--ink);
  background: #fff;
  box-shadow: 8px 8px 0 rgba(23, 24, 22, 0.08);
}

.project-visual-image,
.project-visual-video {
  overflow: hidden;
}

.project-visual-image img {
  width: 100%;
  height: auto;
  display: block;
}

.project-visual-video {
  background: #090b0d;
}

.project-visual-video video {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: contain;
  background: #090b0d;
}

.project-visual-image--contain img {
  max-height: 620px;
  object-fit: contain;
}

.project-visual-gallery {
  display: grid;
  grid-template-columns: 1fr 1fr;
}

.project-visual-gallery-item {
  min-width: 0;
  padding: 16px;
}

.project-visual-gallery-item + .project-visual-gallery-item {
  border-left: 1px solid var(--rule-strong);
}

.project-visual-gallery-item img {
  width: 100%;
  height: 390px;
  display: block;
  object-fit: contain;
}

.project-visual-gallery-item span {
  display: block;
  padding: 12px 4px 0;
  border-top: 1px solid var(--rule);
  color: var(--muted);
  font-size: 0.66rem;
  letter-spacing: 0.045em;
  text-transform: uppercase;
}

.project-visual-flow {
  padding: 32px 28px;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 24px;
  border: 1px solid var(--ink);
  color: #efeee8;
  background:
    linear-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    #1d1f1c;
  background-size: 22px 22px;
  box-shadow: 8px 8px 0 rgba(23, 24, 22, 0.08);
}

.project-visual-node {
  position: relative;
  min-width: 0;
  min-height: 164px;
  padding: 17px 10px 10px;
  border-top: 3px solid #e97b45;
}

.project-visual-node:not(:last-child)::after {
  content: "";
  position: absolute;
  top: 50%;
  right: -18px;
  width: 10px;
  height: 10px;
  border-top: 1px solid #b7b8b1;
  border-right: 1px solid #b7b8b1;
  transform: translateY(-50%) rotate(45deg);
}

.project-visual-node--review {
  border-top-color: #68a76b;
}

.project-visual-node > span,
.project-visual-node > strong,
.project-visual-node > small {
  display: block;
}

.project-visual-node > span {
  color: #e97b45;
  font-size: 0.66rem;
}

.project-visual-node > strong {
  margin-top: 22px;
  font-size: 0.92rem;
  line-height: 1.25;
}

.project-visual-node > small {
  margin-top: 8px;
  color: #b7b8b1;
  font-size: 0.72rem;
  line-height: 1.5;
}

.context-loop {
  container-name: context-diagram;
  container-type: inline-size;
  padding: 28px 28px 18px;
  border: 1px solid var(--ink);
  background:
    linear-gradient(rgba(23, 24, 22, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(23, 24, 22, 0.035) 1px, transparent 1px),
    #faf9f5;
  background-size: 24px 24px;
  box-shadow: 8px 8px 0 rgba(23, 24, 22, 0.08);
}

.context-loop-grid {
  display: grid;
  grid-template-columns: repeat(10, minmax(0, 1fr));
  gap: 20px 14px;
  align-items: stretch;
}

.context-loop-stage,
.context-loop-repository,
.context-loop-feedback {
  position: relative;
}

.context-loop-stage {
  min-width: 0;
  min-height: 190px;
  padding: 20px 14px 16px;
  border: 1px solid var(--rule-strong);
  display: flex;
  flex-direction: column;
  justify-content: center;
  background: rgba(250, 249, 245, 0.92);
}

.context-loop-stage--input {
  grid-column: 1 / span 2;
}

.context-loop-stage--retrieval {
  grid-column: 7 / span 2;
}

.context-loop-stage--output {
  grid-column: 9 / span 2;
}

.context-loop-stage--input::after,
.context-loop-stage--retrieval::after {
  content: "";
  position: absolute;
  z-index: 2;
  top: 50%;
  right: -15px;
  width: 15px;
  border-top: 1px dashed var(--accent);
}

.context-loop-stage--input::before,
.context-loop-stage--retrieval::before {
  content: "";
  position: absolute;
  z-index: 3;
  top: calc(50% - 4px);
  right: -15px;
  border-top: 4px solid transparent;
  border-bottom: 4px solid transparent;
  border-left: 6px solid var(--accent);
}

.context-loop-index {
  color: var(--accent-dark);
  font-size: 0.57rem;
  font-weight: 650;
  letter-spacing: 0.055em;
  text-transform: uppercase;
}

.context-loop-stage > strong,
.context-loop-repository > strong {
  display: block;
  text-transform: uppercase;
}

.context-loop-stage > strong {
  margin-top: 12px;
  color: var(--accent-dark);
  font-size: 0.73rem;
  letter-spacing: 0.025em;
  line-height: 1.3;
}

.context-loop-stage > small,
.context-loop-repository > small {
  display: block;
  font-family: var(--mono);
}

.context-loop-stage > small {
  margin-top: 12px;
  color: #343632;
  font-size: 0.63rem;
  line-height: 1.55;
}

.context-loop-repository {
  grid-column: 3 / span 4;
  min-width: 0;
  padding: 20px 20px 18px;
  color: #f5f3ed;
  background:
    linear-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    #1d1f1c;
  background-size: 22px 22px;
  box-shadow: 5px 5px 0 rgba(23, 24, 22, 0.12);
}

.context-loop-repository .context-loop-index {
  color: #e97b45;
}

.context-loop-repository > strong {
  margin-top: 8px;
  font-size: 0.88rem;
  letter-spacing: 0.035em;
  line-height: 1.3;
}

.context-loop-repository > small {
  margin-top: 5px;
  color: #c5c6bf;
  font-size: 0.62rem;
  line-height: 1.4;
}

.context-loop-properties {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin-top: 21px;
  border-top: 1px solid rgba(255, 255, 255, 0.16);
}

.context-loop-property {
  min-width: 0;
  padding: 14px 5px 2px;
  text-align: center;
}

.context-loop-property + .context-loop-property {
  border-left: 1px dashed rgba(255, 255, 255, 0.22);
}

.context-loop-property i {
  position: relative;
  width: 26px;
  height: 26px;
  margin: 0 auto 9px;
  border: 1px dashed #d7d7d0;
  display: block;
}

.context-loop-property--1 i,
.context-loop-property--2 i {
  border-radius: 50%;
}

.context-loop-property--1 i::before {
  content: "";
  position: absolute;
  top: 12px;
  left: 6px;
  width: 16px;
  border-top: 1px solid #f0eee7;
  transform: rotate(-17deg);
}

.context-loop-property--1 i::after {
  content: "";
  position: absolute;
  top: 9px;
  left: 5px;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: #e97b45;
}

.context-loop-property--2 i::before {
  content: "";
  position: absolute;
  top: 6px;
  left: 12px;
  height: 8px;
  border-left: 1px solid #e97b45;
  transform-origin: bottom;
}

.context-loop-property--2 i::after {
  content: "";
  position: absolute;
  top: 13px;
  left: 12px;
  width: 7px;
  border-top: 1px solid #e97b45;
  transform: rotate(35deg);
  transform-origin: left;
}

.context-loop-property--3 i::before {
  content: "";
  position: absolute;
  top: 6px;
  left: 7px;
  width: 10px;
  height: 12px;
  border: 1px solid #e97b45;
  border-radius: 6px 6px 0 0;
}

.context-loop-property--3 i::after {
  content: "";
  position: absolute;
  right: 5px;
  bottom: 4px;
  left: 5px;
  height: 11px;
  background: #e97b45;
}

.context-loop-property--4 i::before {
  content: "";
  position: absolute;
  top: 8px;
  left: 7px;
  width: 11px;
  height: 6px;
  border-bottom: 2px solid #e97b45;
  border-left: 2px solid #e97b45;
  transform: rotate(-45deg);
}

.context-loop-property b {
  display: block;
  font-size: 0.57rem;
  font-weight: 550;
  line-height: 1.25;
}

.context-loop-stage--output::after {
  content: "";
  position: absolute;
  right: 50%;
  bottom: -21px;
  height: 20px;
  border-right: 1px solid var(--ink);
}

.context-loop-feedback {
  grid-column: 3 / span 8;
  min-height: 118px;
  padding: 18px 16px;
  border: 1px dashed var(--accent);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  background: rgba(250, 249, 245, 0.94);
}

.context-loop-feedback-return {
  grid-column: 1 / -1;
  margin: 0 16px 15px;
  padding-bottom: 9px;
  border-bottom: 1px solid var(--rule);
  color: var(--muted);
  font-size: 0.56rem;
  letter-spacing: 0.035em;
  text-transform: uppercase;
}

.context-loop-feedback::before {
  content: "";
  position: absolute;
  top: -21px;
  left: 25%;
  height: 20px;
  border-left: 1px solid var(--ink);
}

.context-loop-feedback::after {
  content: "";
  position: absolute;
  top: -21px;
  left: calc(25% - 4px);
  border-right: 4px solid transparent;
  border-bottom: 6px solid var(--accent);
  border-left: 4px solid transparent;
}

.context-loop-feedback-item {
  min-width: 0;
  padding: 2px 16px;
  display: grid;
  grid-template-columns: 24px minmax(0, 1fr);
  gap: 8px;
}

.context-loop-feedback-item + .context-loop-feedback-item {
  border-left: 1px dashed var(--rule-strong);
}

.context-loop-feedback-item > span {
  color: var(--accent);
  font-size: 0.62rem;
  font-weight: 650;
}

.context-loop-feedback-item strong,
.context-loop-feedback-item small {
  display: block;
}

.context-loop-feedback-item strong {
  color: var(--accent-dark);
  font-size: 0.68rem;
  letter-spacing: 0.025em;
  line-height: 1.35;
  text-transform: uppercase;
}

.context-loop-feedback-item small {
  margin-top: 7px;
  color: #3d3f3a;
  font-family: var(--mono);
  font-size: 0.6rem;
  line-height: 1.5;
}

.context-loop-boundary {
  margin: 18px 0 0;
  padding-top: 12px;
  border-top: 1px solid var(--rule-strong);
  color: var(--muted);
  font-size: 0.59rem;
  letter-spacing: 0.025em;
}

.context-loop-boundary::before {
  content: "▣";
  margin-right: 8px;
  color: var(--accent);
}

@container context-diagram (max-width: 620px) {
  .context-loop-grid {
    grid-template-columns: repeat(10, minmax(0, 1fr));
  }

  .context-loop-stage--input {
    grid-column: 1 / span 3;
  }

  .context-loop-repository {
    grid-column: 4 / span 7;
  }

  .context-loop-stage--retrieval {
    grid-column: 1 / span 5;
  }

  .context-loop-stage--output {
    grid-column: 6 / span 5;
  }

  .context-loop-feedback {
    grid-column: 1 / span 10;
  }

  .context-loop-repository::after {
    content: "";
    position: absolute;
    z-index: 2;
    bottom: -21px;
    left: 17%;
    height: 20px;
    border-left: 1px dashed var(--accent);
  }

  .context-loop-repository::before {
    content: "";
    position: absolute;
    z-index: 3;
    bottom: -21px;
    left: calc(17% - 4px);
    border-top: 6px solid var(--accent);
    border-right: 4px solid transparent;
    border-left: 4px solid transparent;
  }

  .context-loop-feedback::before,
  .context-loop-feedback::after {
    display: none;
  }
}

.project-visual-caption {
  padding: 18px 0 0 16px;
  border-left: 1px solid var(--rule-strong);
}

.project-visual-caption p {
  max-width: 680px;
  margin: 0;
  color: var(--muted);
  font-size: 0.83rem;
  line-height: 1.6;
}

.project-visual-caption p + p {
  margin-top: 8px;
  color: var(--accent-dark);
}

.project-visual-caption small {
  display: block;
  margin-top: 10px;
  color: var(--faint);
  font-size: 0.63rem;
  letter-spacing: 0.035em;
  text-transform: uppercase;
}

.article-infobox {
  position: sticky;
  top: 24px;
  border: 1px solid var(--rule-strong);
  background: var(--paper);
}

.article-infobox-title {
  padding: 22px 20px 20px;
  border-bottom: 4px solid var(--accent);
  background: var(--paper-deep);
}

.article-infobox-title p,
.article-infobox-links p {
  margin: 0;
  color: var(--muted);
  font-size: 0.67rem;
  letter-spacing: 0.055em;
  text-transform: uppercase;
}

.article-infobox-title h2 {
  margin: 8px 0 0;
  font-size: 1.12rem;
  line-height: 1.25;
}

.article-infobox dl {
  margin: 0;
}

.article-infobox dl div {
  display: grid;
  grid-template-columns: 86px 1fr;
  gap: 12px;
  padding: 11px 16px;
  border-bottom: 1px solid var(--rule);
  font-size: 0.75rem;
  line-height: 1.45;
}

.article-infobox dt {
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.67rem;
  letter-spacing: 0.025em;
  text-transform: uppercase;
}

.article-infobox dd {
  margin: 0;
}

.article-infobox-links {
  padding: 18px 16px 20px;
}

.article-infobox-links + .article-infobox-links {
  border-top: 1px solid var(--rule);
}

.article-infobox-links a {
  display: block;
  margin-top: 8px;
  color: var(--accent-dark);
  font-size: 0.78rem;
}

.research-metrics {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin-top: 34px;
  border-top: 1px solid var(--rule-strong);
  border-bottom: 1px solid var(--rule-strong);
}

.research-metrics > div {
  min-width: 0;
  padding: 22px 18px 24px 0;
}

.research-metrics > div + div {
  padding-left: 18px;
  border-left: 1px solid var(--rule);
}

.research-metrics strong,
.research-metrics span {
  display: block;
}

.research-metrics strong {
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(1.7rem, 3.2vw, 2.5rem);
  font-weight: 400;
  letter-spacing: -0.04em;
  line-height: 1;
}

.research-metrics span {
  max-width: 16rem;
  margin-top: 8px;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.64rem;
  letter-spacing: 0.025em;
  line-height: 1.45;
  text-transform: uppercase;
}

.research-program {
  margin-top: 86px;
  padding-top: 42px;
  border-top: 1px solid var(--rule-strong);
}

.research-program-heading {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(240px, 0.65fr);
  gap: 64px;
  align-items: end;
  margin-bottom: 34px;
}

.research-program-heading h2 {
  max-width: 760px;
  margin: 11px 0 0;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(1.9rem, 3.7vw, 3rem);
  font-weight: 400;
  letter-spacing: -0.04em;
  line-height: 1.08;
}

.research-program-heading > p {
  margin: 0;
  color: var(--muted);
  font-size: 0.88rem;
  line-height: 1.65;
}

.research-phase-list {
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--rule-strong);
  list-style: none;
}

.research-phase {
  display: grid;
  grid-template-columns: 72px minmax(0, 1fr);
  gap: 24px;
  padding: 32px 0 36px;
  border-bottom: 1px solid var(--rule);
}

.research-phase--featured {
  background:
    linear-gradient(90deg, rgba(23, 103, 139, 0.07), transparent 60%);
}

.research-phase-index {
  padding-top: 2px;
  color: var(--research);
  font-size: 0.75rem;
  letter-spacing: 0.045em;
}

.research-phase-copy {
  min-width: 0;
}

.research-phase-title {
  display: flex;
  gap: 28px;
  align-items: baseline;
  justify-content: space-between;
}

.research-phase-title h3 {
  margin: 0;
  font-size: clamp(1.2rem, 2.2vw, 1.55rem);
  font-weight: 590;
  letter-spacing: -0.03em;
  line-height: 1.22;
}

.research-phase-title > span {
  flex: none;
  color: var(--research);
  font-size: 0.63rem;
  letter-spacing: 0.035em;
  text-transform: uppercase;
}

.research-phase-result {
  margin: 10px 0 0;
  color: var(--ink);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 1.08rem;
  line-height: 1.35;
}

.research-phase-copy > p:not(.research-phase-result) {
  max-width: 790px;
  margin: 10px 0 0;
  color: var(--muted);
  font-size: 0.92rem;
  line-height: 1.65;
}

.research-phase-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 20px;
  margin-top: 16px;
  color: var(--muted);
  font-size: 0.66rem;
  letter-spacing: 0.025em;
  text-transform: uppercase;
}

.research-phase-links a {
  color: var(--accent-dark);
  text-decoration-color: var(--accent);
}

.project-document {
  margin-top: 86px;
  padding-top: 42px;
  border-top: 1px solid var(--rule-strong);
}

.project-document-heading {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 32px;
  align-items: end;
}

.project-document-heading h2 {
  max-width: 820px;
  margin: 10px 0 0;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(1.8rem, 3.6vw, 3rem);
  font-weight: 400;
  letter-spacing: -0.035em;
  line-height: 1.08;
}

.project-document-heading > div > p:last-child {
  max-width: 760px;
  margin: 18px 0 0;
  color: var(--muted);
  font-size: 0.96rem;
  line-height: 1.65;
}

.project-document-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: flex-end;
}

.project-document-actions a {
  padding: 10px 13px;
  border: 1px solid var(--rule-strong);
  color: var(--accent-dark);
  font-family: var(--mono);
  font-size: 0.69rem;
  letter-spacing: 0.02em;
  text-decoration: none;
  text-transform: uppercase;
}

.project-document-actions a:first-child,
.project-document-actions a:hover {
  border-color: var(--accent-dark);
  background: var(--accent-dark);
  color: var(--paper);
}

.project-document-reader {
  height: min(900px, 82vh);
  min-height: 620px;
  margin-top: 28px;
  border: 1px solid var(--rule-strong);
  overflow-y: auto;
  background: #242522;
  overscroll-behavior: contain;
  scroll-snap-type: y proximity;
}

.project-document-reader:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.project-document-pages {
  display: grid;
  gap: 28px;
  width: min(820px, calc(100% - 48px));
  margin: 0 auto;
  padding: 28px 0;
  list-style: none;
}

.project-document-pages li {
  scroll-snap-align: start;
}

.project-document-pages img {
  display: block;
  width: 100%;
  height: auto;
  background: #fff;
  box-shadow: 0 10px 30px rgb(0 0 0 / 0.24);
}

.project-document-pages span {
  display: block;
  margin-top: 9px;
  color: #c8c7c1;
  font-size: 0.65rem;
  letter-spacing: 0.035em;
  text-align: center;
  text-transform: uppercase;
}

.related-records {
  display: grid;
  grid-template-columns: minmax(190px, 0.5fr) minmax(0, 1.5fr);
  gap: 54px;
  margin-top: 86px;
  padding-top: 42px;
  border-top: 1px solid var(--rule-strong);
}

.related-records h2 {
  margin: 9px 0 0;
  font-size: 1.6rem;
  font-weight: 590;
  letter-spacing: -0.035em;
  line-height: 1.2;
}

.related-record-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 12px;
}

.related-record-list a {
  display: flex;
  min-height: 178px;
  padding: 18px;
  border: 1px solid var(--rule);
  flex-direction: column;
  text-decoration: none;
}

.related-record-list a:hover {
  border-color: var(--accent);
  background: var(--paper-deep);
}

.related-record-list span {
  color: var(--accent-dark);
  font-size: 0.66rem;
}

.related-record-list strong {
  margin-top: 22px;
  font-size: 1rem;
  line-height: 1.25;
}

.related-record-list small {
  margin-top: 9px;
  color: var(--muted);
  font-size: 0.75rem;
  line-height: 1.5;
}

.record-pagination {
  margin-top: 38px;
  text-align: right;
}

.page-intro--single {
  display: block;
  max-width: 850px;
}

.prose-stack {
  max-width: 760px;
  margin-top: 70px;
}

.prose-stack section {
  display: grid;
  grid-template-columns: 190px 1fr;
  gap: 44px;
  padding: 34px 0;
  border-top: 1px solid var(--rule);
}

.prose-stack h2 {
  margin: 0;
  font-size: 1rem;
}

.prose-stack p {
  margin: 0;
  color: #393b36;
  font-size: 1.03rem;
  line-height: 1.75;
}

.lab-main {
  max-width: 1240px;
}

.lab-intro {
  padding-bottom: 62px;
  border-bottom: 1px solid var(--rule-strong);
}

.lab-browser {
  padding-top: 54px;
}

.lab-browser-heading {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 38px;
  align-items: end;
  padding-bottom: 24px;
}

.lab-browser-heading h2 {
  margin: 8px 0 0;
  font-size: clamp(1.8rem, 3vw, 2.7rem);
  font-weight: 560;
  letter-spacing: -0.04em;
  line-height: 1.12;
}

.lab-browser-heading output {
  margin: 0 0 5px;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.035em;
  text-transform: uppercase;
}

.lab-controls {
  display: grid;
  grid-template-columns: minmax(220px, 0.8fr) minmax(0, 1.5fr);
  gap: 18px 28px;
  align-items: end;
  padding: 20px 0 28px;
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule-strong);
}

.lab-search {
  display: grid;
  gap: 7px;
}

.lab-search span {
  color: var(--muted);
  font-size: 0.67rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.lab-search input {
  width: 100%;
  min-height: 48px;
  padding: 0 13px;
  border: 1px solid var(--rule-strong);
  border-radius: 2px;
  background: transparent;
}

.lab-filter-set {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: flex-end;
}

.lab-filter-set button {
  min-height: 38px;
  padding: 0 12px;
  border: 1px solid var(--rule-strong);
  border-radius: 2px;
  background: transparent;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.68rem;
  cursor: pointer;
}

.lab-filter-set button:hover,
.lab-filter-set button.is-active {
  border-color: var(--ink);
  background: var(--ink);
  color: var(--paper);
}

.lab-card-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
  padding-top: 28px;
}

.lab-card {
  display: flex;
  min-width: 0;
  border: 1px solid var(--rule);
  background: rgba(255, 255, 255, 0.18);
  flex-direction: column;
  transition:
    border-color 160ms ease,
    transform 160ms ease;
}

.lab-card:hover {
  border-color: var(--ink);
  transform: translateY(-3px);
}

.lab-card-image-link {
  display: block;
  text-decoration: none;
}

.lab-card-visual {
  position: relative;
  width: 100%;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  border-bottom: 1px solid rgba(23, 24, 22, 0.18);
  background: var(--paper-deep);
}

.lab-card-visual span {
  position: absolute;
  display: block;
}

.lab-card-visual--video {
  background: #d8c09f;
}

.lab-card-visual--skilltube {
  isolation: isolate;
}

.lab-card-visual--skilltube::before {
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    linear-gradient(rgba(23, 24, 22, 0.065) 1px, transparent 1px),
    linear-gradient(90deg, rgba(23, 24, 22, 0.065) 1px, transparent 1px);
  background-size: 18px 18px;
  content: "";
  opacity: 0;
  transition: opacity 220ms ease;
}

.skilltube-tile-video {
  position: absolute;
  inset: 20% 15% 27%;
  border: 2px solid rgba(23, 24, 22, 0.72);
  background: rgba(246, 245, 241, 0.45);
  transform-origin: center;
}

.skilltube-tile-video::before {
  position: absolute;
  inset: 0 0 auto;
  height: 12%;
  border-bottom: 1px solid rgba(23, 24, 22, 0.38);
  background:
    radial-gradient(circle at 8px 50%, var(--accent) 0 2px, transparent 2.5px),
    radial-gradient(circle at 16px 50%, rgba(23, 24, 22, 0.44) 0 2px, transparent 2.5px);
  content: "";
}

.skilltube-tile-play {
  position: absolute;
  top: 39%;
  left: 47%;
  width: 0;
  height: 0;
  border-top: 14px solid transparent;
  border-bottom: 14px solid transparent;
  border-left: 22px solid var(--accent);
}

.skilltube-tile-video-lines {
  position: absolute;
  right: 12%;
  bottom: 13%;
  left: 12%;
  height: 2px;
  background: rgba(23, 24, 22, 0.62);
  box-shadow:
    0 9px 0 rgba(23, 24, 22, 0.48),
    0 18px 0 rgba(23, 24, 22, 0.3);
}

.skilltube-tile-route {
  position: absolute;
  top: 49%;
  left: 28%;
  width: 24%;
  height: 20px;
  opacity: 0;
}

.skilltube-tile-route::before {
  position: absolute;
  top: 9px;
  left: 0;
  width: 100%;
  height: 1px;
  background: rgba(23, 24, 22, 0.7);
  content: "";
  transform: scaleX(0);
  transform-origin: left center;
}

.skilltube-tile-link {
  position: absolute;
  top: 3px;
  left: 1px;
  width: 14px;
  height: 8px;
  border: 1.5px solid var(--accent-dark);
  border-radius: 8px;
  transform: rotate(-36deg);
}

.skilltube-tile-link::after {
  position: absolute;
  top: 2px;
  left: 8px;
  width: 14px;
  height: 8px;
  border: 1.5px solid var(--accent-dark);
  border-radius: 8px;
  content: "";
}

.skilltube-tile-packet {
  position: absolute;
  top: 6px;
  left: 0;
  width: 7px;
  height: 7px;
  border: 1px solid var(--ink);
  background: var(--accent);
  opacity: 0;
  transform: rotate(45deg);
}

.skilltube-tile-machine {
  position: absolute;
  top: 27%;
  left: 43%;
  width: 22%;
  height: 46%;
  border: 2px solid rgba(23, 24, 22, 0.72);
  background: rgba(246, 245, 241, 0.65);
  opacity: 0;
  transform: translateY(6px);
}

.skilltube-tile-machine::before,
.skilltube-tile-machine::after {
  position: absolute;
  top: 10%;
  width: 5px;
  height: 5px;
  border: 1px solid rgba(23, 24, 22, 0.6);
  border-radius: 50%;
  content: "";
}

.skilltube-tile-machine::before {
  left: 10%;
  background: var(--accent);
}

.skilltube-tile-machine::after {
  left: 24%;
  background: rgba(23, 24, 22, 0.24);
}

.skilltube-tile-spinner {
  position: absolute;
  top: 27%;
  left: 50%;
  width: 36px;
  height: 36px;
  border: 2px dashed var(--accent-dark);
  border-radius: 50%;
  transform: translateX(-50%);
}

.skilltube-tile-spinner::before,
.skilltube-tile-spinner::after {
  position: absolute;
  content: "";
  background: rgba(23, 24, 22, 0.64);
}

.skilltube-tile-spinner::before {
  top: 16px;
  right: -7px;
  left: -7px;
  height: 2px;
}

.skilltube-tile-spinner::after {
  top: -7px;
  bottom: -7px;
  left: 16px;
  width: 2px;
}

.skilltube-tile-machine-slot {
  position: absolute;
  right: 13%;
  bottom: 11%;
  left: 13%;
  height: 3px;
  background: var(--ink);
}

.skilltube-tile-file {
  position: absolute;
  top: 25%;
  left: 68%;
  width: 26%;
  height: 50%;
  padding: 0;
  border: 0;
  background: rgba(23, 24, 22, 0.76);
  clip-path: polygon(0 0, 75% 0, 100% 17.333%, 100% 100%, 0 100%);
  filter: drop-shadow(4px 4px 0 rgba(23, 24, 22, 0.12));
  opacity: 0;
  transform: translateX(-38px);
}

.skilltube-tile-file::before {
  position: absolute;
  inset: 2px;
  z-index: 0;
  background: var(--paper);
  clip-path: polygon(0 0, 74.5% 0, 100% 17.5%, 100% 100%, 0 100%);
  content: "";
}

.skilltube-tile-file::after {
  position: absolute;
  top: 58%;
  right: 11%;
  left: 11%;
  z-index: 1;
  height: 1px;
  background: rgba(23, 24, 22, 0.35);
  box-shadow: 0 10px 0 rgba(23, 24, 22, 0.35);
  content: "";
}

.skilltube-tile-file-fold {
  position: absolute;
  top: 0;
  right: 0;
  z-index: 2;
  width: 25%;
  aspect-ratio: 1;
  border-bottom: 1px solid rgba(23, 24, 22, 0.68);
  border-left: 1px solid rgba(23, 24, 22, 0.68);
  background: #d8c09f;
  clip-path: polygon(0 0, 0 100%, 100% 100%);
}

.skilltube-tile-file strong,
.skilltube-tile-file small {
  position: absolute;
  right: 7%;
  left: 7%;
  z-index: 1;
  display: block;
  overflow: hidden;
  color: var(--ink);
  font-family: var(--mono);
  line-height: 1;
  text-overflow: clip;
  white-space: nowrap;
}

.skilltube-tile-file strong {
  top: 27%;
  font-size: clamp(0.5rem, 1.4vw, 0.76rem);
  letter-spacing: -0.04em;
}

.skilltube-tile-file small {
  top: 43%;
  margin: 0;
  color: var(--accent-dark);
  font-size: clamp(0.36rem, 0.8vw, 0.52rem);
  text-transform: uppercase;
}

.lab-card:hover .lab-card-visual--skilltube::before,
.lab-card:focus-within .lab-card-visual--skilltube::before {
  opacity: 1;
}

.lab-card:hover .skilltube-tile-video,
.lab-card:focus-within .skilltube-tile-video {
  animation: skilltube-tile-video 5.4s ease-in-out infinite;
}

.lab-card:hover .skilltube-tile-play,
.lab-card:focus-within .skilltube-tile-play {
  animation: skilltube-tile-play 5.4s ease-in-out infinite;
}

.lab-card:hover .skilltube-tile-route,
.lab-card:focus-within .skilltube-tile-route {
  animation: skilltube-tile-route 5.4s ease-in-out infinite;
}

.lab-card:hover .skilltube-tile-route::before,
.lab-card:focus-within .skilltube-tile-route::before {
  animation: skilltube-tile-line 5.4s ease-in-out infinite;
}

.lab-card:hover .skilltube-tile-packet,
.lab-card:focus-within .skilltube-tile-packet {
  animation: skilltube-tile-packet 5.4s ease-in-out infinite;
}

.lab-card:hover .skilltube-tile-machine,
.lab-card:focus-within .skilltube-tile-machine {
  animation: skilltube-tile-machine 5.4s ease-in-out infinite;
}

.lab-card:hover .skilltube-tile-spinner,
.lab-card:focus-within .skilltube-tile-spinner {
  animation: skilltube-tile-spinner 760ms linear infinite;
}

.lab-card:hover .skilltube-tile-file,
.lab-card:focus-within .skilltube-tile-file {
  animation: skilltube-tile-file 5.4s ease-in-out infinite;
}

@keyframes skilltube-tile-video {
  0%,
  13% {
    inset: 20% 15% 27%;
    opacity: 1;
    transform: scale(1);
  }
  25%,
  90% {
    inset: 20% 15% 27%;
    opacity: 1;
    transform: translateX(-46%) scale(0.42);
  }
  96%,
  100% {
    inset: 20% 15% 27%;
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes skilltube-tile-play {
  0%,
  7% {
    transform: scale(1);
  }
  10% {
    transform: scale(1.22);
  }
  13%,
  100% {
    transform: scale(1);
  }
}

@keyframes skilltube-tile-route {
  0%,
  22% {
    opacity: 0;
  }
  27%,
  88% {
    opacity: 1;
  }
  94%,
  100% {
    opacity: 0;
  }
}

@keyframes skilltube-tile-line {
  0%,
  24% {
    transform: scaleX(0);
  }
  34%,
  90% {
    transform: scaleX(1);
  }
  96%,
  100% {
    transform: scaleX(0);
  }
}

@keyframes skilltube-tile-packet {
  0%,
  30% {
    left: 0;
    opacity: 0;
  }
  33% {
    opacity: 1;
  }
  46% {
    left: calc(100% - 7px);
    opacity: 1;
  }
  49%,
  100% {
    left: calc(100% - 7px);
    opacity: 0;
  }
}

@keyframes skilltube-tile-machine {
  0%,
  34% {
    opacity: 0;
    transform: translateY(6px);
  }
  41%,
  88% {
    opacity: 1;
    transform: translateY(0);
  }
  94%,
  100% {
    opacity: 0;
    transform: translateY(6px);
  }
}

@keyframes skilltube-tile-spinner {
  to {
    transform: translateX(-50%) rotate(360deg);
  }
}

@keyframes skilltube-tile-file {
  0%,
  53% {
    opacity: 0;
    transform: translateX(-38px);
  }
  64%,
  88% {
    opacity: 1;
    transform: translateX(0);
  }
  94%,
  100% {
    opacity: 0;
    transform: translateX(-18px);
  }
}

.lab-card-visual--context {
  background: #b9c9c7;
}

.lab-card-visual--context span {
  width: 23px;
  height: 23px;
  border: 2px solid rgba(23, 24, 22, 0.68);
  border-radius: 50%;
  background: var(--paper);
}

.lab-card-visual--context span::after {
  content: "";
  position: absolute;
  top: 10px;
  left: 10px;
  width: 82px;
  height: 1px;
  background: rgba(23, 24, 22, 0.52);
  transform-origin: left;
}

.lab-card-visual--context span:nth-child(1) {
  top: 42%;
  left: 45%;
  width: 36px;
  height: 36px;
  border-color: var(--accent);
}

.lab-card-visual--context span:nth-child(1)::after {
  width: 0;
}

.lab-card-visual--context span:nth-child(2) {
  top: 17%;
  left: 18%;
}

.lab-card-visual--context span:nth-child(2)::after {
  width: 112px;
  transform: rotate(28deg);
}

.lab-card-visual--context span:nth-child(3) {
  top: 18%;
  right: 16%;
}

.lab-card-visual--context span:nth-child(3)::after {
  width: 98px;
  transform: rotate(142deg);
}

.lab-card-visual--context span:nth-child(4) {
  right: 19%;
  bottom: 17%;
}

.lab-card-visual--context span:nth-child(4)::after {
  width: 94px;
  transform: rotate(211deg);
}

.lab-card-visual--context span:nth-child(5) {
  bottom: 15%;
  left: 16%;
}

.lab-card-visual--context span:nth-child(5)::after {
  width: 105px;
  transform: rotate(326deg);
}

.lab-card-visual--generator {
  background: #c9c6b3;
}

.lab-card-visual--generator span {
  width: 42%;
  height: 28%;
  border: 1px solid rgba(23, 24, 22, 0.58);
  background: rgba(246, 245, 241, 0.78);
}

.lab-card-visual--generator span::before,
.lab-card-visual--generator span::after {
  content: "";
  position: absolute;
  right: 14%;
  left: 14%;
  height: 2px;
  background: rgba(23, 24, 22, 0.34);
}

.lab-card-visual--generator span::before {
  top: 36%;
}

.lab-card-visual--generator span::after {
  top: 57%;
  right: 34%;
}

.lab-card-visual--generator span:nth-child(1) {
  top: 16%;
  left: 10%;
}

.lab-card-visual--generator span:nth-child(2) {
  top: 25%;
  right: 9%;
  border-color: var(--accent-dark);
}

.lab-card-visual--generator span:nth-child(3) {
  bottom: 13%;
  left: 27%;
}

.lab-card-visual--generator span:nth-child(4),
.lab-card-visual--generator span:nth-child(5) {
  display: none;
}

.lab-card-visual--filter {
  background: #becbd3;
}

.lab-card-visual--filter span {
  top: 27%;
  width: 43%;
  aspect-ratio: 1;
  border: 2px solid rgba(23, 24, 22, 0.68);
  border-radius: 50%;
}

.lab-card-visual--filter span:nth-child(1) {
  left: 12%;
  background: rgba(217, 79, 18, 0.32);
}

.lab-card-visual--filter span:nth-child(2) {
  right: 12%;
  background: rgba(23, 103, 139, 0.25);
}

.lab-card-visual--filter span:nth-child(3) {
  top: 12%;
  left: 29%;
  background: rgba(246, 245, 241, 0.28);
}

.lab-card-visual--filter span:nth-child(4),
.lab-card-visual--filter span:nth-child(5) {
  display: none;
}

.lab-card-visual--home {
  background: #d4c29c;
}

.lab-card-visual--home span:nth-child(1) {
  top: 30%;
  left: 28%;
  width: 44%;
  height: 45%;
  border: 2px solid rgba(23, 24, 22, 0.68);
  border-top: 0;
  background: rgba(246, 245, 241, 0.42);
}

.lab-card-visual--home span:nth-child(2) {
  top: 15%;
  left: 32%;
  width: 36%;
  height: 36%;
  border-top: 2px solid rgba(23, 24, 22, 0.68);
  border-left: 2px solid rgba(23, 24, 22, 0.68);
  transform: rotate(45deg);
}

.lab-card-visual--home span:nth-child(3),
.lab-card-visual--home span:nth-child(4),
.lab-card-visual--home span:nth-child(5) {
  left: 38%;
  width: 24%;
  height: 2px;
  background: rgba(23, 24, 22, 0.52);
}

.lab-card-visual--home span:nth-child(3) {
  top: 49%;
}

.lab-card-visual--home span:nth-child(4) {
  top: 58%;
}

.lab-card-visual--home span:nth-child(5) {
  top: 67%;
}

.lab-card-body {
  display: flex;
  min-height: 270px;
  padding: 19px 20px 18px;
  flex: 1;
  flex-direction: column;
}

.lab-card-meta {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  color: var(--muted);
  font-size: 0.65rem;
  letter-spacing: 0.035em;
  text-transform: uppercase;
}

.lab-card-meta span:first-child {
  color: var(--accent-dark);
}

.lab-card h2 {
  margin: 23px 0 0;
  font-size: 1.28rem;
  font-weight: 630;
  letter-spacing: -0.03em;
  line-height: 1.2;
}

.lab-card h2 a {
  text-decoration-color: transparent;
}

.lab-card h2 a:hover {
  text-decoration-color: var(--accent);
}

.lab-card-body > p {
  margin: 12px 0 0;
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.62;
}

.lab-card-footer {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  align-items: center;
  margin-top: auto;
  padding-top: 24px;
}

.lab-card-footer > div {
  display: flex;
  gap: 14px;
  font-size: 0.74rem;
}

.lab-card-footer > div a:first-child {
  color: var(--accent-dark);
  font-weight: 650;
}

.lab-empty {
  padding: 42px 0;
  border-bottom: 1px solid var(--rule);
}

.lab-empty p {
  margin: 0 0 14px;
}

.lab-empty button {
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--accent-dark);
  text-decoration: underline;
  cursor: pointer;
}

.lab-architecture {
  margin-top: 86px;
  padding-top: 48px;
  border-top: 1px solid var(--rule-strong);
}

.lab-architecture-intro {
  display: grid;
  grid-template-columns: 190px minmax(260px, 0.95fr) minmax(260px, 0.85fr);
  gap: 42px;
}

.lab-architecture-intro h2 {
  margin: 0;
  font-size: clamp(1.8rem, 3vw, 2.6rem);
  font-weight: 560;
  letter-spacing: -0.04em;
  line-height: 1.14;
}

.lab-architecture-intro > p:last-child {
  margin: 0;
  color: var(--muted);
  line-height: 1.75;
}

.surface-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  margin: 42px 0 0;
  padding: 0;
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
  list-style: none;
}

.surface-list li {
  min-height: 235px;
  padding: 28px 26px;
}

.surface-list li + li {
  border-left: 1px solid var(--rule);
}

.surface-list span {
  color: var(--accent-dark);
  font-size: 0.68rem;
  text-transform: uppercase;
}

.surface-list h3 {
  margin: 34px 0 0;
  font-size: 1.08rem;
}

.surface-list p {
  margin: 10px 0 0;
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.65;
}

.surface-list code {
  font-family: var(--mono);
  font-size: 0.9em;
}

.lab-architecture-note {
  max-width: 820px;
  margin: 22px 0 0;
  color: var(--muted);
  font-size: 0.7rem;
  line-height: 1.6;
  text-transform: uppercase;
}

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

.contact-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 24px;
  margin-top: 20px;
  font-size: 0.88rem;
}

.contact-links a:first-child {
  color: var(--accent-dark);
  font-weight: 650;
}

.contact-form {
  display: grid;
  gap: 17px;
  margin-top: 34px;
  padding-top: 28px;
  border-top: 1px solid var(--rule);
}

.contact-form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

.contact-form label {
  display: grid;
  gap: 7px;
}

.contact-form label > span {
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.035em;
  text-transform: uppercase;
}

.contact-form input,
.contact-form select,
.contact-form textarea {
  width: 100%;
  border: 1px solid var(--rule-strong);
  border-radius: 2px;
  background: transparent;
}

.contact-form input,
.contact-form select {
  min-height: 48px;
  padding: 0 13px;
}

.contact-form textarea {
  min-height: 156px;
  padding: 12px 13px;
  resize: vertical;
}

.contact-form-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px 24px;
  align-items: center;
}

.contact-form button {
  min-height: 45px;
  padding: 0 18px;
  border: 1px solid var(--ink);
  border-radius: 2px;
  background: var(--ink);
  color: var(--paper);
  cursor: pointer;
}

.contact-form button:hover {
  border-color: var(--accent-dark);
  background: var(--accent-dark);
}

.contact-form-actions a {
  font-size: 0.82rem;
}

.prose-stack .contact-form-note {
  margin: 0;
  color: var(--faint);
  font-family: var(--mono);
  font-size: 0.67rem;
  line-height: 1.55;
}

.empty-ledger {
  max-width: 760px;
  margin-top: 66px;
  padding: 38px 0;
  border-top: 1px solid var(--rule-strong);
  border-bottom: 1px solid var(--rule);
}

.empty-ledger > span {
  color: var(--muted);
  font-size: 0.74rem;
  text-transform: uppercase;
}

.empty-ledger p {
  margin: 14px 0 20px;
  font-size: 1.2rem;
}

.skilltube-main {
  padding-bottom: 110px;
}

.skilltube-header {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 285px;
  gap: clamp(44px, 8vw, 110px);
  align-items: end;
  padding: 12px 0 54px;
}

.skilltube-header h1 {
  max-width: 800px;
  margin: 12px 0 16px;
  font-size: clamp(4.2rem, 9vw, 8.8rem);
  line-height: 0.82;
  letter-spacing: -0.075em;
}

.skilltube-header .article-deck {
  max-width: 760px;
}

.skilltube-header-note {
  padding: 20px 0 4px 22px;
  border-left: 2px solid var(--accent);
}

.skilltube-header-note span,
.skilltube-header-note strong,
.skilltube-header-note p {
  display: block;
}

.skilltube-header-note span {
  color: var(--accent-dark);
  font-size: 0.74rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.skilltube-header-note strong {
  margin-top: 8px;
  font-size: 1.12rem;
}

.skilltube-header-note p {
  margin: 5px 0 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.skilltube-workbench {
  position: relative;
  border: 1px solid var(--ink);
  background:
    linear-gradient(rgba(23, 24, 22, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(23, 24, 22, 0.035) 1px, transparent 1px),
    var(--paper-deep);
  background-size: 22px 22px;
  box-shadow: 9px 9px 0 rgba(23, 24, 22, 0.08);
}

.skilltube-steps {
  min-height: 58px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-bottom: 1px solid var(--ink);
  background: var(--paper);
}

.skilltube-steps span {
  display: flex;
  gap: 12px;
  align-items: center;
  padding: 16px 20px;
  color: var(--faint);
  font-family: var(--mono);
  font-size: 0.74rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.skilltube-steps span + span {
  border-left: 1px solid var(--rule);
}

.skilltube-steps span.is-current {
  color: var(--paper);
  background: var(--ink);
}

.skilltube-steps b {
  color: var(--accent);
  font-weight: 650;
}

.skilltube-panel {
  min-height: 460px;
  padding: clamp(34px, 6vw, 74px);
  scroll-margin-top: 24px;
}

.skilltube-panel[data-skilltube-panel="input"] {
  display: grid;
  grid-template-columns: minmax(250px, 0.68fr) minmax(360px, 1.32fr);
  gap: clamp(42px, 8vw, 110px);
  align-items: center;
}

.skilltube-panel-copy h2,
.skilltube-result-heading h2 {
  margin: 10px 0 18px;
  max-width: 720px;
  font-size: clamp(2.2rem, 5vw, 4.5rem);
  line-height: 0.98;
  letter-spacing: -0.055em;
}

.skilltube-panel-copy > p:last-child {
  max-width: 520px;
  color: var(--muted);
  font-size: 1.04rem;
}

.skilltube-form {
  padding: clamp(24px, 4vw, 42px);
  border: 1px solid var(--rule-strong);
  background: rgba(246, 245, 241, 0.93);
}

.skilltube-form label {
  display: block;
  margin-bottom: 10px;
  font-family: var(--mono);
  font-size: 0.76rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.skilltube-url-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
}

.skilltube-url-row input {
  min-width: 0;
  padding: 15px 16px;
  border: 1px solid var(--ink);
  border-right: 0;
  border-radius: 0;
  background: #fffefb;
}

.skilltube-primary,
.skilltube-secondary,
.skilltube-generated-heading button {
  min-height: 48px;
  padding: 12px 18px;
  border: 1px solid var(--ink);
  border-radius: 0;
  cursor: pointer;
  font-weight: 650;
}

.skilltube-primary {
  color: var(--paper);
  background: var(--ink);
}

.skilltube-primary:hover:not(:disabled) {
  background: var(--accent-dark);
}

.skilltube-primary:disabled {
  cursor: not-allowed;
  opacity: 0.45;
}

.skilltube-secondary,
.skilltube-generated-heading button {
  background: transparent;
}

.skilltube-secondary:hover,
.skilltube-generated-heading button:hover {
  color: var(--accent-dark);
  border-color: var(--accent);
}

.skilltube-form-meta {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  margin-top: 12px;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.72rem;
}

.skilltube-form-meta output[data-empty="true"] {
  color: var(--accent-dark);
}

.skilltube-disclosure {
  margin: 24px 0 0;
  padding-top: 20px;
  border-top: 1px solid var(--rule);
  color: var(--faint);
  font-size: 0.79rem;
  line-height: 1.55;
}

.skilltube-result-heading {
  display: flex;
  justify-content: space-between;
  gap: 28px;
  align-items: start;
}

.skilltube-method {
  flex: 0 0 auto;
  margin-top: 8px;
  padding: 7px 10px;
  border: 1px solid var(--accent);
  color: var(--accent-dark);
  background: var(--paper);
  font-size: 0.69rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.skilltube-selection-note {
  max-width: 680px;
  margin: 0 0 30px;
  color: var(--muted);
}

.skilltube-workflows {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.skilltube-workflow {
  position: relative;
  min-height: 190px;
  padding: 20px;
  display: grid;
  grid-template-columns: 28px 34px minmax(0, 1fr);
  gap: 10px;
  border: 1px solid var(--rule-strong);
  background: rgba(246, 245, 241, 0.94);
  cursor: pointer;
}

.skilltube-workflow:has(input:checked) {
  border-color: var(--ink);
  box-shadow: inset 4px 0 0 var(--accent);
}

.skilltube-workflow:has(input:disabled:not(:checked)) {
  cursor: not-allowed;
  opacity: 0.52;
}

.skilltube-workflow input {
  width: 18px;
  height: 18px;
  margin: 3px 0 0;
  accent-color: var(--accent-dark);
}

.skilltube-workflow-number {
  padding-top: 2px;
  color: var(--accent-dark);
  font-size: 0.74rem;
}

.skilltube-workflow-copy,
.skilltube-workflow-copy strong,
.skilltube-workflow-copy span,
.skilltube-workflow-copy small {
  display: block;
}

.skilltube-workflow-copy strong {
  font-size: 1.08rem;
  line-height: 1.25;
}

.skilltube-workflow-copy > span {
  margin: 8px 0 14px;
  color: var(--muted);
  font-size: 0.9rem;
}

.skilltube-workflow-copy small {
  margin-top: 5px;
  color: var(--faint);
  font-size: 0.76rem;
}

.skilltube-workflow-copy small b {
  color: var(--ink);
}

.skilltube-actions {
  margin-top: 28px;
  display: flex;
  justify-content: space-between;
  gap: 14px;
}

.skilltube-status {
  position: absolute;
  right: 28px;
  bottom: 24px;
  left: 28px;
  z-index: 2;
  padding: 13px 16px;
  border: 1px solid var(--research);
  color: var(--research);
  background: #f2f7f8;
  font-size: 0.88rem;
}

.skilltube-status[data-type="error"] {
  border-color: var(--accent);
  color: var(--accent-dark);
  background: #fff5ef;
}

.skilltube-generated {
  display: grid;
  gap: 14px;
}

.skilltube-generated-card {
  border: 1px solid var(--rule-strong);
  background: rgba(246, 245, 241, 0.95);
}

.skilltube-generated-heading {
  padding: 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
}

.skilltube-generated-heading span {
  color: var(--accent-dark);
  font-size: 0.7rem;
}

.skilltube-generated-heading h3 {
  margin: 4px 0 2px;
  font-size: 1.22rem;
}

.skilltube-generated-heading code {
  color: var(--muted);
  font-size: 0.76rem;
}

.skilltube-generated-card details {
  border-top: 1px solid var(--rule);
}

.skilltube-generated-card summary {
  padding: 12px 20px;
  cursor: pointer;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.72rem;
  text-transform: uppercase;
}

.skilltube-generated-card pre {
  max-height: 440px;
  margin: 0;
  padding: 22px;
  overflow: auto;
  border-top: 1px solid var(--rule);
  background: #1d1f1c;
  color: #efeee8;
  font-size: 0.78rem;
  white-space: pre-wrap;
}

.skilltube-explainer {
  margin-top: 100px;
  padding-top: 34px;
  display: grid;
  grid-template-columns: minmax(260px, 0.7fr) minmax(440px, 1.3fr);
  gap: clamp(40px, 8vw, 120px);
  border-top: 2px solid var(--ink);
}

.skilltube-explainer h2 {
  margin: 12px 0 0;
  font-size: clamp(2.2rem, 4vw, 4rem);
  line-height: 1;
  letter-spacing: -0.055em;
}

.skilltube-explainer-body p {
  margin: 0;
  color: var(--muted);
  font-size: 1.03rem;
  line-height: 1.75;
}

.skilltube-explainer-body p + p {
  margin-top: 22px;
}

.skilltube-explainer-links {
  grid-column: 2;
  padding-top: 24px;
  display: flex;
  gap: 28px;
  border-top: 1px solid var(--rule);
}

.context-blueprint-main {
  padding-bottom: 120px;
}

.context-blueprint-header {
  margin: 42px 0 0;
  padding: 0 0 34px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 48px;
  align-items: end;
  border-bottom: 1px solid var(--ink);
}

.context-course-title h1 {
  max-width: 900px;
  margin: 10px 0 14px;
  font-size: clamp(3.4rem, 5vw, 5.4rem);
  line-height: 0.94;
  letter-spacing: -0.065em;
}

.context-course-title > p:last-child {
  max-width: 680px;
  margin: 0;
  color: var(--muted);
  font-size: 1rem;
  line-height: 1.55;
}

.context-course-meta {
  min-width: 310px;
  margin: 0;
  display: grid;
  grid-template-columns: repeat(3, auto);
  border-top: 1px solid var(--rule-strong);
  border-bottom: 1px solid var(--rule-strong);
}

.context-course-meta div {
  padding: 14px 16px;
}

.context-course-meta div + div {
  border-left: 1px solid var(--rule);
}

.context-course-meta dt {
  color: var(--faint);
  font-family: var(--mono);
  font-size: 0.63rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.context-course-meta dd {
  margin: 6px 0 0;
  font-size: 0.82rem;
  font-weight: 650;
  white-space: nowrap;
}

.context-course {
  scroll-margin-top: 18px;
  margin: 0 0 120px;
  border-right: 1px solid var(--ink);
  border-bottom: 1px solid var(--ink);
  border-left: 1px solid var(--ink);
  background: var(--paper);
}

.context-course-progress {
  min-height: 70px;
  padding: 0 24px;
  display: grid;
  grid-template-columns: auto minmax(140px, 1fr) auto auto;
  gap: 22px;
  align-items: center;
  border-bottom: 1px solid var(--ink);
}

.context-course-skip {
  min-height: 36px;
  padding: 0 12px;
  border: 1px solid var(--rule-strong);
  border-radius: 2px;
  background: transparent;
  color: var(--ink);
  font-family: var(--mono);
  font-size: 0.66rem;
  letter-spacing: 0.025em;
  cursor: pointer;
}

.context-course-skip:hover,
.context-course-skip:focus-visible {
  border-color: var(--ink);
  background: var(--ink);
  color: var(--paper);
}

.context-course-progress > span,
.context-course-progress > strong {
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.context-course-progress > strong {
  font-family: var(--mono);
}

.context-course-meter {
  height: 8px;
  overflow: hidden;
  border: 1px solid var(--rule-strong);
  background: transparent;
}

.context-course-meter span {
  display: block;
  width: 0;
  height: 100%;
  background: var(--accent);
  transition: width 240ms ease;
}

.context-course-shell {
  display: grid;
  grid-template-columns: 300px minmax(0, 1fr);
}

.context-syllabus {
  min-width: 0;
  border-right: 1px solid var(--ink);
  background: var(--paper-deep);
}

.context-syllabus-heading {
  min-height: 58px;
  padding: 0 18px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--rule-strong);
}

.context-syllabus-heading > span {
  font-size: 0.66rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.context-syllabus-heading button {
  padding: 5px 0;
  border: 0;
  color: var(--muted);
  background: transparent;
  cursor: pointer;
  font-size: 0.72rem;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.context-syllabus-module {
  padding: 22px 14px 18px;
  border-bottom: 1px solid var(--rule-strong);
}

.context-syllabus-module h3 {
  margin: 0 8px 12px;
  color: var(--accent-dark);
  font-size: 0.66rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.context-syllabus-module button,
.context-capstone-nav {
  width: 100%;
  min-height: 50px;
  padding: 10px 8px;
  display: grid;
  grid-template-columns: 28px minmax(0, 1fr) 18px;
  gap: 8px;
  align-items: center;
  border: 0;
  border-radius: 0;
  color: var(--muted);
  background: transparent;
  cursor: pointer;
  font-size: 0.8rem;
  line-height: 1.3;
  text-align: left;
}

.context-syllabus-module button:hover:not(:disabled),
.context-capstone-nav:hover:not(:disabled) {
  color: var(--accent-dark);
}

.context-syllabus-module button.is-current {
  color: var(--paper);
  background: var(--ink);
}

.context-syllabus-module button.is-complete {
  color: var(--ink);
}

.context-syllabus-module button:disabled,
.context-capstone-nav:disabled {
  color: var(--faint);
  cursor: not-allowed;
}

.context-syllabus-number,
.context-syllabus-state {
  font-family: var(--mono);
  font-size: 0.66rem;
}

.context-syllabus-state {
  justify-self: end;
}

.context-syllabus-module button.is-complete .context-syllabus-state {
  color: var(--active);
}

.context-capstone-nav {
  min-height: 76px;
  padding: 14px 22px;
  border-bottom: 1px solid var(--rule-strong);
  color: var(--accent-dark);
}

.context-capstone-nav strong,
.context-capstone-nav small {
  display: block;
}

.context-capstone-nav small {
  margin-top: 3px;
  color: var(--muted);
  font-size: 0.7rem;
}

.context-capstone-nav.is-unlocked {
  box-shadow: inset 4px 0 0 var(--accent);
}

.context-progress-note {
  margin: 0;
  padding: 18px 22px 26px;
  color: var(--faint);
  font-size: 0.7rem;
  line-height: 1.55;
}

.context-lesson-player {
  min-width: 0;
  min-height: 780px;
}

.context-course-lesson,
.context-course-complete {
  min-height: 780px;
  padding: clamp(34px, 5vw, 70px);
}

.context-course-lesson[hidden],
.context-course-complete[hidden] {
  display: none;
}

.context-course-lesson-header {
  padding-bottom: 28px;
  display: flex;
  justify-content: space-between;
  gap: 24px;
  border-bottom: 1px solid var(--rule-strong);
}

.context-course-lesson-header p {
  margin: 0 0 12px;
  color: var(--accent-dark);
  font-size: 0.68rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.context-course-lesson-header h2 {
  max-width: 820px;
  margin: 0;
  font-size: clamp(2.6rem, 5vw, 5rem);
  line-height: 0.96;
  letter-spacing: -0.058em;
}

.context-lesson-time {
  flex: 0 0 auto;
  padding-top: 3px;
  color: var(--muted);
  font-size: 0.72rem;
}

.context-lesson-objective {
  padding: 22px 0;
  border-bottom: 1px solid var(--rule);
}

.context-lesson-objective > span,
.context-lesson-example > span,
.context-knowledge-check legend > span {
  color: var(--muted);
  font-size: 0.65rem;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.context-lesson-objective p {
  max-width: 760px;
  margin: 7px 0 0;
  font-size: 0.94rem;
  line-height: 1.55;
}

.context-lesson-copy {
  max-width: 800px;
  padding: 26px 0 6px;
}

.context-lesson-copy p {
  margin: 0;
  color: var(--muted);
  font-size: 1rem;
  line-height: 1.75;
}

.context-lesson-copy p + p {
  margin-top: 17px;
}

.context-lesson-example {
  margin-top: 24px;
}

.context-lesson-example pre {
  margin: 9px 0 0;
  padding: 20px 22px;
  overflow: auto;
  color: #efeee8;
  background: #1d1f1c;
  font-size: 0.76rem;
  line-height: 1.6;
  white-space: pre-wrap;
}

.context-knowledge-check {
  margin: 30px 0 0;
  padding: 24px 0 0;
  border: 0;
  border-top: 1px solid var(--rule-strong);
}

.context-knowledge-check legend {
  width: 100%;
  padding: 0 0 14px;
}

.context-knowledge-check legend > span,
.context-knowledge-check legend > strong {
  display: block;
}

.context-knowledge-check legend > strong {
  margin-top: 7px;
  font-size: 0.94rem;
}

.context-knowledge-check label {
  min-height: 46px;
  padding: 10px 13px;
  display: grid;
  grid-template-columns: 20px minmax(0, 1fr);
  gap: 10px;
  align-items: start;
  border: 1px solid var(--rule-strong);
  cursor: pointer;
  color: var(--muted);
  font-size: 0.84rem;
  line-height: 1.45;
}

.context-knowledge-check label + label {
  margin-top: 7px;
}

.context-knowledge-check label:has(input:checked) {
  color: var(--accent-dark);
  border-color: var(--accent);
}

.context-knowledge-check input {
  width: 16px;
  height: 16px;
  margin: 2px 0 0;
  accent-color: var(--accent-dark);
}

.context-quiz-feedback {
  min-height: 22px;
  margin: 10px 0 0;
  color: var(--muted);
  font-size: 0.78rem;
}

.context-knowledge-check.is-correct .context-quiz-feedback {
  color: var(--active);
}

.context-knowledge-check.is-incorrect .context-quiz-feedback {
  color: var(--accent-dark);
}

.context-lesson-actions {
  margin-top: 20px;
  padding-top: 20px;
  display: flex;
  justify-content: space-between;
  gap: 14px;
  border-top: 1px solid var(--rule);
}

.context-lesson-actions button:disabled {
  cursor: not-allowed;
  opacity: 0.38;
}

.context-course-complete {
  display: grid;
  align-content: center;
  justify-items: start;
  background:
    linear-gradient(rgba(23, 24, 22, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(23, 24, 22, 0.035) 1px, transparent 1px),
    var(--paper-deep);
  background-size: 24px 24px;
}

.context-course-complete h2 {
  max-width: 760px;
  margin: 13px 0 22px;
  font-size: clamp(3rem, 6vw, 6rem);
  line-height: 0.94;
  letter-spacing: -0.065em;
}

.context-course-complete > p:not(.eyebrow) {
  max-width: 690px;
  margin: 0 0 28px;
  color: var(--muted);
  font-size: 1rem;
  line-height: 1.7;
}

.context-builder {
  scroll-margin-top: 24px;
  border: 1px solid var(--ink);
  background:
    linear-gradient(rgba(23, 24, 22, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(23, 24, 22, 0.035) 1px, transparent 1px),
    var(--paper-deep);
  background-size: 22px 22px;
  box-shadow: 9px 9px 0 rgba(23, 24, 22, 0.08);
}

.context-builder-lock {
  min-height: 480px;
  padding: clamp(42px, 8vw, 100px);
  display: none;
  align-content: center;
  justify-items: start;
  background:
    linear-gradient(rgba(23, 24, 22, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(23, 24, 22, 0.035) 1px, transparent 1px),
    var(--paper-deep);
  background-size: 24px 24px;
}

.context-builder.is-locked .context-builder-lock {
  display: grid;
}

.context-builder.is-locked > :not(.context-builder-lock) {
  display: none;
}

.context-builder-lock > span {
  color: var(--accent-dark);
  font-size: 0.68rem;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.context-builder-lock h2 {
  max-width: 760px;
  margin: 13px 0 18px;
  font-size: clamp(2.8rem, 5vw, 5.2rem);
  line-height: 0.95;
  letter-spacing: -0.06em;
}

.context-builder-lock p {
  max-width: 650px;
  margin: 0 0 26px;
  color: var(--muted);
  line-height: 1.65;
}

.context-builder-steps {
  min-height: 58px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-bottom: 1px solid var(--ink);
  background: var(--paper);
}

.context-builder-steps button {
  min-width: 0;
  padding: 16px 20px;
  display: flex;
  align-items: center;
  gap: 12px;
  border: 0;
  border-radius: 0;
  color: var(--faint);
  background: transparent;
  cursor: pointer;
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  text-align: left;
  text-transform: uppercase;
}

.context-builder-steps button + button {
  border-left: 1px solid var(--rule);
}

.context-builder-steps button.is-current {
  color: var(--paper);
  background: var(--ink);
}

.context-builder-steps b {
  color: var(--accent);
  font-weight: 650;
}

.context-builder-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 340px;
}

.context-builder-panels {
  min-width: 0;
}

.context-builder-panel {
  min-height: 780px;
  padding: clamp(34px, 5vw, 68px);
}

.context-builder-panel h2 {
  max-width: 760px;
  margin: 11px 0 20px;
  font-size: clamp(2.4rem, 5vw, 4.8rem);
  line-height: 0.98;
  letter-spacing: -0.055em;
}

.context-builder-intro {
  max-width: 690px;
  margin: 0 0 38px;
  color: var(--muted);
  font-size: 1rem;
  line-height: 1.7;
}

.context-choice-list,
.context-review-model,
.context-safeguards {
  min-width: 0;
  margin: 0;
  padding: 0;
  border: 0;
}

.context-choice-list {
  border-top: 1px solid var(--rule-strong);
}

.context-choice {
  min-height: 88px;
  padding: 17px 4px;
  display: grid;
  grid-template-columns: 24px 36px minmax(0, 1fr);
  gap: 12px;
  align-items: start;
  border-bottom: 1px solid var(--rule);
  cursor: pointer;
}

.context-choice:has(input:checked) {
  box-shadow: inset 4px 0 0 var(--accent);
}

.context-choice input,
.context-review-model input,
.context-safeguards input {
  width: 18px;
  height: 18px;
  margin: 4px 0 0;
  accent-color: var(--accent-dark);
}

.context-choice-number {
  padding-top: 3px;
  color: var(--accent-dark);
  font-size: 0.7rem;
}

.context-choice strong,
.context-choice small,
.context-review-model strong,
.context-review-model small {
  display: block;
}

.context-choice strong {
  font-size: 1rem;
}

.context-choice small {
  max-width: 620px;
  margin-top: 5px;
  color: var(--muted);
  font-size: 0.82rem;
  line-height: 1.5;
}

.context-builder-actions {
  margin-top: 34px;
  padding-top: 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 18px;
  border-top: 1px solid var(--rule);
}

.context-builder-actions > span {
  color: var(--faint);
  font-size: 0.68rem;
  text-transform: uppercase;
}

.context-builder-actions > a {
  color: var(--accent-dark);
  font-weight: 650;
}

.context-primary,
.context-secondary {
  min-height: 48px;
  padding: 12px 18px;
  border: 1px solid var(--ink);
  border-radius: 0;
  cursor: pointer;
  font-weight: 650;
}

.context-primary {
  color: var(--paper);
  background: var(--ink);
}

.context-primary:hover {
  background: var(--accent-dark);
}

.context-secondary {
  background: transparent;
}

.context-secondary:hover {
  color: var(--accent-dark);
  border-color: var(--accent);
}

.context-live-preview {
  min-width: 0;
  padding: 28px 24px;
  border-left: 1px solid var(--ink);
  color: #efeee8;
  background: #1d1f1c;
}

.context-live-preview header {
  padding-bottom: 16px;
  display: flex;
  justify-content: space-between;
  gap: 18px;
  border-bottom: 1px solid #4d4f4b;
  color: #b7b8b1;
  font-size: 0.68rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.context-preview-name {
  padding: 22px 0 12px;
  color: #e97b45;
  font-family: var(--mono);
  font-size: 0.82rem;
}

.context-live-preview pre {
  max-height: 555px;
  margin: 0;
  overflow: auto;
  color: #d8d8d2;
  font-size: 0.72rem;
  line-height: 1.6;
  white-space: pre;
}

.context-preview-principle {
  margin-top: 26px;
  padding-top: 18px;
  border-top: 1px solid #4d4f4b;
}

.context-preview-principle span {
  color: #e97b45;
  font-size: 0.66rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.context-preview-principle p {
  margin: 8px 0 0;
  color: #b7b8b1;
  font-size: 0.78rem;
}

.context-preview-principle code {
  color: #efeee8;
}

.context-rule-grid {
  margin-bottom: 34px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

.context-field > span,
.context-file-select > span {
  display: block;
  margin-bottom: 8px;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.context-field input,
.context-field select,
.context-field textarea,
.context-file-select select {
  width: 100%;
  min-height: 48px;
  padding: 11px 12px;
  border: 1px solid var(--rule-strong);
  border-radius: 0;
  background: rgba(246, 245, 241, 0.94);
}

.context-field textarea {
  resize: vertical;
  line-height: 1.5;
}

.problem-first-main .context-course-title h1 {
  max-width: 980px;
  font-size: clamp(3.1rem, 5.8vw, 6.6rem);
}

.problem-field-stack {
  display: grid;
  gap: 20px;
}

.problem-field-stack .context-field {
  display: block;
}

.problem-live-preview {
  display: flex;
  min-height: 780px;
  flex-direction: column;
}

.problem-signal-meter {
  padding: 20px 0 18px;
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 6px;
  border-bottom: 1px solid #4d4f4b;
}

.problem-signal-meter span {
  height: 8px;
  border: 1px solid #74766f;
  background: transparent;
}

.problem-signal-meter span.is-ready {
  border-color: #e97b45;
  background: #e97b45;
}

.problem-preview-sections {
  padding-top: 4px;
}

.problem-preview-sections section {
  padding: 17px 0;
  border-bottom: 1px solid #3c3e3a;
}

.problem-preview-sections h3 {
  margin: 0 0 7px;
  color: #e97b45;
  font-family: var(--mono);
  font-size: 0.64rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.problem-preview-sections p,
.problem-preview-sections ul {
  margin: 0;
  color: #deded8;
  font-size: 0.76rem;
  line-height: 1.55;
}

.problem-preview-sections ul {
  padding-left: 17px;
}

.problem-preview-sections .is-missing {
  color: #85877f;
  font-style: italic;
}

.problem-live-preview .context-preview-principle {
  margin-top: auto;
}

.problem-brief-preview {
  max-height: 430px;
}

.context-review-model {
  border-top: 1px solid var(--rule-strong);
}

.context-review-model legend,
.context-safeguards legend {
  margin-bottom: 12px;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.context-review-model label {
  padding: 14px 4px;
  display: grid;
  grid-template-columns: 26px minmax(0, 1fr);
  gap: 10px;
  border-bottom: 1px solid var(--rule);
  cursor: pointer;
}

.context-review-model label:has(input:checked) {
  box-shadow: inset 4px 0 0 var(--accent);
}

.context-review-model strong {
  font-size: 0.92rem;
}

.context-review-model small {
  margin-top: 3px;
  color: var(--muted);
  font-size: 0.78rem;
}

.context-safeguards {
  margin-top: 34px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0 24px;
}

.context-safeguards legend {
  grid-column: 1 / -1;
}

.context-safeguards label {
  min-height: 48px;
  padding: 10px 0;
  display: grid;
  grid-template-columns: 26px minmax(0, 1fr);
  gap: 9px;
  align-items: start;
  border-bottom: 1px solid var(--rule);
  color: var(--muted);
  cursor: pointer;
  font-size: 0.82rem;
}

.context-export-summary {
  margin: 4px 0 28px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--rule-strong);
  border-bottom: 1px solid var(--rule-strong);
}

.context-export-summary div {
  padding: 18px 14px;
}

.context-export-summary div + div {
  border-left: 1px solid var(--rule);
}

.context-export-summary strong,
.context-export-summary span {
  display: block;
}

.context-export-summary strong {
  color: var(--accent-dark);
  font-family: var(--mono);
  font-size: 1.28rem;
}

.context-export-summary span {
  margin-top: 4px;
  color: var(--muted);
  font-size: 0.72rem;
}

.context-file-select {
  display: block;
}

.context-file-preview {
  max-height: 310px;
  margin: 14px 0 0;
  padding: 20px;
  overflow: auto;
  background: #1d1f1c;
  color: #efeee8;
  font-size: 0.74rem;
  line-height: 1.6;
  white-space: pre-wrap;
}

.context-export-actions {
  margin-top: 18px;
  display: flex;
  gap: 12px;
}

.context-export-status {
  min-height: 24px;
  margin: 16px 0 0;
  color: var(--active);
  font-size: 0.82rem;
}

.context-completion-record {
  margin-top: 24px;
  padding: 24px;
  border: 1px solid var(--accent);
  background: rgba(246, 245, 241, 0.82);
}

.context-completion-record[hidden] {
  display: none;
}

.context-completion-record > span {
  color: var(--accent-dark);
  font-size: 0.66rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.context-completion-record h3 {
  max-width: 580px;
  margin: 10px 0 12px;
  font-size: 1.8rem;
  line-height: 1;
  letter-spacing: -0.035em;
}

.context-completion-record > p {
  max-width: 620px;
  margin: 0 0 18px;
  color: var(--muted);
  font-size: 0.84rem;
  line-height: 1.55;
}

.context-completion-record .context-field {
  max-width: 520px;
  margin-bottom: 13px;
  display: block;
}

.context-completion-record > small {
  margin-top: 12px;
  display: block;
  color: var(--faint);
  font-size: 0.68rem;
}

.context-blueprint-explainer {
  margin-top: 120px;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 28px;
  padding: 34px 48px;
  border-top: 1px solid var(--rule);
  color: var(--muted);
  font-size: 0.75rem;
}

.site-footer p {
  margin: 0;
}

@media (max-width: 1180px) {
  .compendium-main {
    overflow-x: auto;
  }

  .compendium-controls {
    min-width: 1010px;
  }
}

@media (max-width: 840px) {
  .site-header {
    min-height: auto;
    padding: 18px 20px 0;
    grid-template-columns: 1fr auto;
  }

  .site-brand {
    align-self: center;
  }

  .site-contact {
    align-self: center;
  }

  .site-nav {
    grid-column: 1 / -1;
    grid-row: 2;
    order: 3;
    gap: 24px;
    margin-top: 12px;
    overflow-x: auto;
  }

  .site-nav a {
    min-height: 42px;
    white-space: nowrap;
  }

  .catalog-shell {
    display: block;
  }

  .catalog-rail {
    display: none;
  }

  .page-main {
    padding: 48px 22px 68px;
  }

  .page-intro {
    display: block;
  }

  .catalog-number {
    margin-top: 24px;
  }

  .compendium-main {
    overflow: visible;
  }

  .compendium-controls {
    min-width: 0;
    grid-template-columns: 1fr 1fr;
  }

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

  .project-count {
    align-self: center;
    padding: 0;
  }

  .project-table-heading {
    display: none;
  }

  .project-list {
    min-width: 0;
    margin-top: 28px;
  }

  .project-row,
  .project-row--featured {
    grid-template-columns: 48px minmax(0, 1fr) auto;
    gap: 10px 12px;
    min-height: auto;
    padding: 22px 0;
  }

  .project-index {
    grid-row: 1 / 4;
    align-self: start;
    padding-top: 3px;
  }

  .project-identity {
    padding: 0;
  }

  .project-identity h2,
  .project-row--featured .project-identity h2 {
    font-size: 1.08rem;
  }

  .project-identity p,
  .project-row--featured .project-identity p {
    display: block;
    margin: 7px 0 0;
    font-family: var(--sans);
    font-size: 0.88rem;
    font-style: normal;
    line-height: 1.5;
  }

  .project-domain {
    grid-column: 2;
    color: var(--muted);
  }

  .project-domain small {
    display: inline;
    margin-left: 8px;
    font-family: var(--sans);
  }

  .project-type,
  .project-status,
  .project-year {
    display: none;
  }

  .project-open {
    grid-column: 3;
    grid-row: 1 / 4;
    align-self: center;
  }

  .home-intro {
    padding-bottom: 62px;
  }

  .solar-system {
    top: -50px;
    right: -34%;
    width: min(115vw, 560px);
    opacity: 0.29;
  }

  .home-intro h1 {
    font-size: clamp(3rem, 14vw, 5.4rem);
  }

  .section-heading {
    display: block;
  }

  .section-heading > p {
    margin-top: 18px;
  }

  .recent-update-row {
    grid-template-columns: 108px minmax(0, 1fr) auto;
    gap: 20px;
  }

  .analytics-login {
    grid-template-columns: 1fr 1fr;
  }

  .analytics-login button {
    grid-column: 1 / -1;
  }

  .analytics-breakdowns {
    gap: 48px 34px;
  }

  .home-thesis {
    display: block;
  }

  .home-lab-preview,
  .lab-architecture-intro {
    display: block;
  }

  .home-lab-preview > div:last-child,
  .lab-architecture-intro h2,
  .lab-architecture-intro > p:last-child {
    margin-top: 24px;
  }

  .lab-browser-heading,
  .lab-controls {
    display: block;
  }

  .lab-browser-heading output {
    display: block;
    margin-top: 18px;
  }

  .lab-filter-set {
    justify-content: flex-start;
    margin-top: 16px;
  }

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

  .skilltube-header,
  .skilltube-panel[data-skilltube-panel="input"],
  .skilltube-explainer {
    grid-template-columns: 1fr;
  }

  .skilltube-header {
    gap: 28px;
  }

  .skilltube-header-note {
    max-width: 420px;
  }

  .skilltube-panel[data-skilltube-panel="input"] {
    gap: 34px;
  }

  .skilltube-workflows {
    grid-template-columns: 1fr;
  }

  .skilltube-explainer {
    gap: 34px;
  }

  .skilltube-explainer-links {
    grid-column: 1;
  }

  .context-blueprint-header {
    grid-template-columns: 1fr;
    gap: 26px;
  }

  .context-course-meta {
    width: 100%;
  }

  .context-course-shell {
    grid-template-columns: 1fr;
  }

  .context-syllabus {
    border-right: 0;
    border-bottom: 1px solid var(--ink);
  }

  .context-syllabus-module {
    padding: 18px 14px 14px;
  }

  .context-syllabus-module button {
    min-height: 44px;
  }

  .context-builder-body {
    grid-template-columns: 1fr;
  }

  .context-live-preview {
    min-height: 520px;
    border-top: 1px solid var(--ink);
    border-left: 0;
  }

  .context-live-preview pre {
    max-height: 360px;
  }

  .surface-list {
    grid-template-columns: 1fr;
  }

  .surface-list li {
    min-height: 0;
  }

  .surface-list li + li {
    border-top: 1px solid var(--rule);
    border-left: 0;
  }

  .home-thesis > p:last-child {
    margin-top: 18px;
  }

  .article-breadcrumb {
    margin-bottom: 38px;
  }

  .article-header h1 {
    font-size: clamp(3rem, 13vw, 4.8rem);
  }

  .article-frame {
    display: flex;
    gap: 0;
    margin-top: 34px;
    flex-direction: column;
  }

  .article-infobox {
    position: static;
    order: -1;
    margin-bottom: 38px;
  }

  .article-infobox dl {
    display: grid;
    grid-template-columns: 1fr 1fr;
  }

  .article-infobox dl div {
    grid-template-columns: 86px 1fr;
  }

  .article-contents ol {
    grid-template-columns: 1fr;
  }

  .project-document-heading {
    grid-template-columns: 1fr;
  }

  .research-program-heading {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .project-document-actions {
    justify-content: flex-start;
  }

  .project-visual-flow {
    grid-template-columns: 1fr 1fr;
  }

  .project-visual-node:nth-child(2)::after {
    display: none;
  }

  .related-records {
    display: block;
    margin-top: 62px;
  }

  .related-record-list {
    margin-top: 26px;
  }

  .prose-stack section {
    display: block;
  }

  .prose-stack p {
    margin-top: 14px;
  }

  .contact-links,
  .contact-form,
  .contact-form-note {
    margin-top: 20px !important;
  }

  .site-footer {
    display: block;
    padding: 30px 22px;
  }

  .site-footer p + p {
    margin-top: 10px;
  }
}

@media (max-width: 700px) {
  .context-loop {
    padding: 22px 20px 16px;
  }

  .context-loop-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .context-loop-stage--input,
  .context-loop-repository,
  .context-loop-stage--retrieval,
  .context-loop-stage--output,
  .context-loop-feedback {
    grid-column: 1;
  }

  .context-loop-stage {
    min-height: 0;
    padding: 22px 20px;
  }

  .context-loop-stage > strong {
    font-size: 0.82rem;
  }

  .context-loop-stage > small {
    font-size: 0.69rem;
  }

  .context-loop-repository {
    padding: 22px 20px 20px;
  }

  .context-loop-repository > strong {
    font-size: 0.96rem;
  }

  .context-loop-repository > small {
    font-size: 0.67rem;
  }

  .context-loop-stage--input::after,
  .context-loop-repository::after,
  .context-loop-stage--retrieval::after,
  .context-loop-stage--output::after {
    content: "";
    position: absolute;
    z-index: 2;
    top: auto;
    right: 50%;
    bottom: -25px;
    width: 0;
    height: 24px;
    border-top: 0;
    border-right: 1px dashed var(--accent);
  }

  .context-loop-stage--input::before,
  .context-loop-repository::before,
  .context-loop-stage--retrieval::before,
  .context-loop-stage--output::before {
    content: "";
    position: absolute;
    z-index: 3;
    top: auto;
    right: calc(50% - 4px);
    bottom: -25px;
    border: 0;
    border-top: 6px solid var(--accent);
    border-right: 4px solid transparent;
    border-left: 4px solid transparent;
  }

  .context-loop-feedback::before,
  .context-loop-feedback::after {
    display: none;
  }
}

@media (max-width: 540px) {
  .site-brand {
    font-size: 1.08rem;
  }

  .site-contact {
    font-size: 0.86rem;
  }

  .site-nav {
    gap: 20px;
  }

  .page-intro h1,
  .article-header h1 {
    font-size: 2.75rem;
  }

  .article-header h1,
  .article-infobox-title h2,
  .article-infobox dd,
  .article-infobox-links a {
    overflow-wrap: anywhere;
  }

  .article-infobox {
    width: 100%;
    min-width: 0;
  }

  .research-metrics {
    grid-template-columns: 1fr 1fr;
  }

  .research-metrics > div:nth-child(3) {
    padding-left: 0;
    border-top: 1px solid var(--rule);
    border-left: 0;
  }

  .research-metrics > div:nth-child(4) {
    border-top: 1px solid var(--rule);
  }

  .research-phase {
    grid-template-columns: 44px minmax(0, 1fr);
    gap: 14px;
  }

  .research-phase-title {
    display: block;
  }

  .research-phase-title > span {
    display: block;
    margin-top: 7px;
  }

  .article-infobox dl {
    grid-template-columns: 1fr;
  }

  .article-infobox dl div {
    grid-template-columns: 86px minmax(0, 1fr);
  }

  .project-visual {
    margin-top: 38px;
  }

  .project-visual-flow,
  .project-visual-gallery {
    grid-template-columns: 1fr;
  }

  .project-visual-flow {
    padding: 24px 20px;
  }

  .context-loop {
    padding: 18px 14px 14px;
  }

  .context-loop-properties {
    grid-template-columns: 1fr 1fr;
  }

  .context-loop-property:nth-child(3) {
    border-left: 0;
  }

  .context-loop-property:nth-child(n + 3) {
    border-top: 1px dashed rgba(255, 255, 255, 0.22);
  }

  .context-loop-feedback {
    grid-template-columns: 1fr;
    padding: 10px 16px;
  }

  .context-loop-feedback-item {
    padding: 12px 0;
  }

  .context-loop-feedback-item + .context-loop-feedback-item {
    border-top: 1px dashed var(--rule-strong);
    border-left: 0;
  }

  .project-visual-node {
    min-height: 0;
    padding-bottom: 22px;
  }

  .project-visual-node:not(:last-child)::after {
    top: auto;
    right: 50%;
    bottom: -12px;
    transform: translateX(50%) rotate(135deg);
  }

  .project-visual-node:nth-child(2)::after {
    display: block;
  }

  .project-visual-gallery-item + .project-visual-gallery-item {
    border-top: 1px solid var(--rule-strong);
    border-left: 0;
  }

  .project-visual-gallery-item img {
    height: 330px;
  }

  .project-count {
    grid-column: 1 / -1;
    padding-top: 8px;
  }

  .project-row,
  .project-row--featured {
    grid-template-columns: 38px minmax(0, 1fr);
  }

  .project-open {
    grid-column: 2;
    grid-row: auto;
    justify-self: start;
  }

  .home-actions {
    display: grid;
  }

  .recent-activity {
    display: block;
    overflow-x: auto;
  }

  .recent-activity-grid {
    width: max-content;
    margin-top: 18px;
  }

  .recent-activity-legend {
    margin-top: 12px;
    justify-content: flex-start;
  }

  .recent-update-row {
    grid-template-columns: 1fr auto;
    gap: 10px 18px;
    padding: 20px 0;
  }

  .recent-update-row time {
    grid-column: 1 / -1;
  }

  .recent-update-open {
    align-self: center;
  }

  .analytics-login {
    grid-template-columns: 1fr;
  }

  .analytics-login button,
  .analytics-message {
    grid-column: 1;
  }

  .analytics-metrics,
  .analytics-breakdowns {
    grid-template-columns: 1fr;
  }

  .analytics-metric {
    min-height: 140px;
    padding-right: 0;
    padding-left: 0;
  }

  .analytics-metric + .analytics-metric {
    border-top: 1px dotted var(--rule);
    border-left: 0;
  }

  .analytics-range {
    display: block;
  }

  .analytics-range p:last-child {
    margin-top: 6px;
  }

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

  .lab-card-body {
    min-height: 245px;
  }

  .skilltube-header h1 {
    font-size: 4.2rem;
  }

  .context-blueprint-header h1 {
    font-size: 3.75rem;
  }

  .context-course {
    margin-bottom: 90px;
    border-right: 0;
    border-left: 0;
  }

  .context-course-meta {
    grid-template-columns: 1fr;
  }

  .context-course-meta div {
    padding: 10px 0;
  }

  .context-course-meta div + div {
    border-top: 1px solid var(--rule);
    border-left: 0;
  }

  .context-course-progress {
    padding: 16px 18px;
    grid-template-columns: 1fr auto auto;
    gap: 10px 14px;
  }

  .context-course-meter {
    grid-column: 1 / -1;
    grid-row: 2;
  }

  .context-course-skip {
    min-height: 34px;
    padding: 0 9px;
  }

  .context-course-lesson,
  .context-course-complete {
    min-height: 0;
    padding: 34px 18px 42px;
  }

  .context-course-lesson-header {
    display: block;
  }

  .context-course-lesson-header h2 {
    font-size: 2.55rem;
  }

  .context-lesson-time {
    margin-top: 14px;
    display: block;
  }

  .context-lesson-example pre {
    padding: 16px 13px;
    font-size: 0.68rem;
  }

  .context-lesson-actions {
    align-items: stretch;
    flex-direction: column-reverse;
  }

  .context-lesson-actions button {
    width: 100%;
  }

  .context-course-complete h2 {
    font-size: 3rem;
  }

  .skilltube-steps span {
    min-height: 58px;
    justify-content: center;
    padding: 12px 6px;
    text-align: center;
  }

  .skilltube-steps span b {
    display: none;
  }

  .skilltube-panel {
    min-height: 520px;
    padding: 28px 20px 78px;
  }

  .context-builder-steps button {
    min-height: 58px;
    padding: 10px 4px;
    justify-content: center;
    text-align: center;
  }

  .context-builder-steps button b {
    display: none;
  }

  .context-builder-panel {
    min-height: 640px;
    padding: 30px 18px;
  }

  .context-builder-panel h2 {
    font-size: 2.55rem;
  }

  .problem-first-main .context-course-title h1 {
    font-size: 3.2rem;
  }

  .context-choice {
    grid-template-columns: 24px 27px minmax(0, 1fr);
    gap: 7px;
  }

  .context-rule-grid,
  .context-safeguards {
    grid-template-columns: 1fr;
  }

  .context-safeguards legend {
    grid-column: 1;
  }

  .context-builder-actions,
  .context-export-actions {
    align-items: stretch;
    flex-direction: column;
  }

  .context-builder-actions > span {
    order: 2;
  }

  .context-export-summary {
    grid-template-columns: 1fr;
  }

  .context-export-summary div + div {
    border-top: 1px solid var(--rule);
    border-left: 0;
  }

  .skilltube-url-row {
    grid-template-columns: 1fr;
  }

  .skilltube-url-row input {
    border-right: 1px solid var(--ink);
    border-bottom: 0;
  }

  .skilltube-form-meta,
  .skilltube-result-heading,
  .skilltube-generated-heading,
  .skilltube-actions,
  .skilltube-explainer-links {
    align-items: stretch;
    flex-direction: column;
  }

  .skilltube-method {
    width: max-content;
    margin: 0 0 18px;
  }

  .skilltube-workflow {
    grid-template-columns: 24px 26px minmax(0, 1fr);
    padding: 17px 14px;
  }

  .skilltube-status {
    right: 14px;
    bottom: 14px;
    left: 14px;
  }

  .contact-form-row {
    grid-template-columns: 1fr;
  }

  .article-edition {
    display: grid;
  }

  .article-infobox dl {
    display: block;
  }

  .article-lead p {
    font-size: 1.08rem;
  }

  .article-section h2 {
    grid-template-columns: 34px 1fr;
    gap: 8px;
  }

  .article-section > p {
    font-size: 1rem;
  }

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

  .research-program {
    margin-top: 62px;
    padding-top: 32px;
  }

  .research-phase {
    grid-template-columns: 32px minmax(0, 1fr);
    gap: 10px;
    padding: 26px 0 30px;
  }

  .research-phase-links {
    align-items: flex-start;
    flex-direction: column;
  }

  .project-document-actions a {
    text-align: center;
  }

  .project-document-reader {
    height: 70vh;
    min-height: 520px;
  }

  .project-document-pages {
    gap: 18px;
    width: calc(100% - 20px);
    padding: 10px 0;
  }

  .related-record-list {
    grid-template-columns: 1fr;
  }
}

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

  .solar-orbit {
    animation: none;
  }

  .lab-card {
    transition: none;
  }

  .lab-card:hover {
    transform: none;
  }

  .context-course-meter span {
    transition: none;
  }

  .lab-card:hover .lab-card-visual--skilltube::before,
  .lab-card:focus-within .lab-card-visual--skilltube::before {
    opacity: 0;
  }

  .lab-card:hover .skilltube-tile-video,
  .lab-card:focus-within .skilltube-tile-video,
  .lab-card:hover .skilltube-tile-play,
  .lab-card:focus-within .skilltube-tile-play,
  .lab-card:hover .skilltube-tile-route,
  .lab-card:focus-within .skilltube-tile-route,
  .lab-card:hover .skilltube-tile-route::before,
  .lab-card:focus-within .skilltube-tile-route::before,
  .lab-card:hover .skilltube-tile-packet,
  .lab-card:focus-within .skilltube-tile-packet,
  .lab-card:hover .skilltube-tile-machine,
  .lab-card:focus-within .skilltube-tile-machine,
  .lab-card:hover .skilltube-tile-spinner,
  .lab-card:focus-within .skilltube-tile-spinner,
  .lab-card:hover .skilltube-tile-file,
  .lab-card:focus-within .skilltube-tile-file {
    animation: none;
  }
}