:root {
  --ink: #ffffff;
  --ink-soft: #c9d0cb;
  --paper: #ffffff;
  --paper-strong: #ffffff;
  --paper-ink: #000000;
  --green: #0c6b4d;
  --green-dark: #084634;
  --acid: #b8e34b;
  --orange: #e75c24;
  --amber: #f3b63f;
  --terminal: #0c0c0c;
  --terminal-soft: #1a1a1a;
  --line: rgba(255, 255, 255, 0.18);
  --line-strong: rgba(255, 255, 255, 0.34);
  --shadow: 0 26px 70px rgba(0, 0, 0, 0.45);
  --radius-lg: 24px;
  --radius-md: 14px;
  --radius-sm: 8px;
  --max: 1180px;
  --mono: "JetBrains Mono", "Fira Code", "IBM Plex Mono", "Cascadia Code", "Hack", "SFMono-Regular", Consolas, "Liberation Mono", monospace;
}

* {
  box-sizing: border-box;
}

html {
  scroll-padding-top: 5.5rem;
}

body {
  position: relative;
  isolation: isolate;
  min-height: 100vh;
  margin: 0;
  color: var(--ink);
  background: #000000;
  font-family: var(--mono);
  line-height: 1.55;
}

body::before {
  content: none;
}

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

a {
  color: inherit;
}

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

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1,
h2,
h3 {
  font-family: var(--mono);
  font-weight: 800;
  letter-spacing: -0.025em;
  line-height: 0.98;
}

h1 {
  max-width: 9.5ch;
  margin-bottom: 1rem;
  font-size: clamp(3.8rem, 8.6vw, 7.8rem);
}

h2 {
  margin-bottom: 1rem;
  font-size: clamp(2.4rem, 5.4vw, 5rem);
}

h3 {
  margin-bottom: 0.65rem;
  font-size: clamp(1.35rem, 2vw, 1.75rem);
}

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

.skip-link {
  position: absolute;
  top: 1rem;
  left: 1rem;
  z-index: 30;
  transform: translateY(-180%);
  padding: 0.75rem 1rem;
  border-radius: var(--radius-sm);
  background: var(--terminal);
  color: var(--paper-strong);
  font-weight: 900;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(20px);
  color: #000000;
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.25rem;
  width: min(var(--max), calc(100% - 2rem));
  margin: 0 auto;
  padding: 0.85rem 0;
}

.brand,
.nav-links,
.hero-actions,
.brief-actions,
.footer-links {
  display: flex;
  align-items: center;
}

.brand {
  gap: 0.7rem;
  font-weight: 950;
  letter-spacing: -0.02em;
  text-decoration: none;
}

.brand-mark {
  display: grid;
  width: 2.45rem;
  height: 2.45rem;
  place-items: center;
  border: 1px solid rgba(184, 227, 75, 0.64);
  border-radius: 50%;
  background: var(--terminal);
  color: var(--acid);
  box-shadow: 0 0 0 5px rgba(12, 107, 77, 0.09);
  font-family: var(--mono);
  font-size: 1.05rem;
}

.brand-alpha {
  padding: 0.18rem 0.38rem;
  border: 1px solid var(--orange);
  border-radius: 999px;
  color: #9b360e;
  font-size: 0.62rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.nav-links {
  gap: 0.1rem;
  font-size: 0.9rem;
  font-weight: 800;
}

.nav-links a {
  padding: 0.65rem 0.75rem;
  border-radius: var(--radius-sm);
  color: #000000;
  text-decoration: none;
}

.nav-links a:hover {
  background: rgba(12, 107, 77, 0.08);
  color: var(--green-dark);
}

.nav-links a[aria-current="page"] {
  background: rgba(12, 107, 77, 0.12);
  color: var(--green-dark);
  box-shadow: inset 0 -2px 0 var(--green);
}

.nav-links .nav-cta {
  margin-left: 0.35rem;
  background: var(--terminal);
  color: var(--acid);
}

.nav-links .nav-cta:hover {
  background: var(--green-dark);
  color: #fff;
}

.section {
  width: min(var(--max), calc(100% - 2rem));
  margin: 0 auto;
  padding: clamp(4.25rem, 8vw, 7.25rem) 0;
}

.section-heading {
  max-width: 850px;
  margin-bottom: 2.25rem;
}

.section-heading > p:last-child,
.hero-subhead,
.thesis-copy,
.fit-intro {
  color: var(--ink-soft);
  font-size: clamp(1.08rem, 1.7vw, 1.3rem);
}

.final-panel > div > p {
  color: var(--paper-ink);
}

.eyebrow,
.machine-label,
.card-index,
.surface-type {
  font-family: var(--mono);
  font-weight: 800;
  letter-spacing: 0.11em;
  text-transform: uppercase;
}

.eyebrow {
  margin-bottom: 1rem;
  color: var(--orange);
  font-size: 0.78rem;
}

.p0-hero {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(380px, 0.92fr);
  gap: clamp(2rem, 5vw, 5rem);
  align-items: center;
  min-height: calc(100vh - 4.5rem);
  padding-top: clamp(3.5rem, 7vw, 6rem);
  padding-bottom: clamp(4rem, 7vw, 6rem);
}

.hero-kicker {
  margin-bottom: 0.9rem;
  color: var(--acid);
  font-family: var(--mono);
  font-size: clamp(1.25rem, 2.4vw, 1.8rem);
  font-weight: 900;
}

.hero-subhead {
  max-width: 44rem;
  margin-bottom: 0;
}

.alpha-note {
  max-width: 48rem;
  margin: 1.25rem 0 0;
  padding: 0.85rem 1rem;
  border-left: 4px solid var(--amber);
  background: rgba(243, 182, 63, 0.1);
  color: #f0dcae;
  font-size: 0.84rem;
}

.alpha-note strong {
  color: var(--amber);
}

.catalogue-hero .alpha-note {
  color: var(--ink-soft);
}

.section-heading > .alpha-note:last-child {
  color: var(--ink-soft);
  font-size: 0.84rem;
}

.hero-actions,
.brief-actions {
  flex-wrap: wrap;
  gap: 0.75rem;
  margin: 1.8rem 0 1rem;
}

.button {
  appearance: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 3.25rem;
  padding: 0.85rem 1.15rem;
  border: 2px solid transparent;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font: inherit;
  font-weight: 900;
  text-decoration: none;
  transition: transform 160ms ease, box-shadow 160ms ease, background 160ms ease;
}

.button:hover {
  transform: translateY(-2px);
}

.button.primary {
  background: var(--green);
  color: #fff;
  box-shadow: 6px 6px 0 var(--acid);
}

.button.primary:hover {
  background: var(--green-dark);
  box-shadow: 3px 3px 0 var(--acid);
}

.button.secondary {
  border-color: var(--line-strong);
  background: rgba(255, 255, 255, 0.68);
  color: var(--paper-ink);
}

.button.secondary:hover {
  background: var(--paper-strong);
}

.proof-line {
  max-width: 42rem;
  margin-bottom: 0;
  color: var(--ink-soft);
  font-family: var(--mono);
  font-size: 0.82rem;
  line-height: 1.55;
}

.machine-console {
  overflow: hidden;
  border: 1px solid rgba(184, 227, 75, 0.22);
  border-radius: var(--radius-lg);
  background: var(--terminal);
  color: #ffffff;
  box-shadow:
    14px 14px 0 rgba(231, 92, 36, 0.9),
    0 34px 80px rgba(10, 27, 20, 0.3);
  transform: rotate(1deg);
}

.console-bar {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 1rem;
  padding: 0.85rem 1rem;
  border-bottom: 1px solid rgba(184, 227, 75, 0.16);
  background: var(--terminal-soft);
  color: #cfd6d0;
  font-family: var(--mono);
  font-size: 0.72rem;
}

.console-lights {
  display: flex;
  gap: 0.35rem;
}

.console-lights i {
  width: 0.55rem;
  height: 0.55rem;
  border-radius: 50%;
  background: var(--orange);
}

.console-lights i:nth-child(2) {
  background: var(--amber);
}

.console-lights i:nth-child(3) {
  background: var(--acid);
}

.console-status {
  justify-self: end;
  color: var(--acid);
}

.console-body {
  padding: clamp(1.15rem, 3vw, 1.75rem);
}

.machine-label {
  margin-bottom: 0.65rem;
  color: #7e9a8c;
  font-size: 0.68rem;
}

.machine-inputs {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.45rem;
}

.machine-inputs span,
.machine-outputs span {
  border: 1px solid rgba(184, 227, 75, 0.18);
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.07);
  font-family: var(--mono);
  font-size: 0.73rem;
}

.machine-inputs span {
  display: grid;
  min-height: 4.25rem;
  place-items: center;
  padding: 0.7rem;
  color: #ffffff;
  text-align: center;
}

.machine-arrow {
  height: 2rem;
  color: var(--acid);
  font-family: var(--mono);
  line-height: 2rem;
  text-align: center;
}

.machine-core {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.9rem;
  align-items: center;
  padding: 1rem;
  border-radius: var(--radius-md);
  background: var(--acid);
  color: var(--paper-ink);
}

.core-zero {
  display: grid;
  width: 3rem;
  height: 3rem;
  place-items: center;
  border: 2px solid currentColor;
  border-radius: 50%;
  font-family: var(--mono);
  font-size: 1.35rem;
  font-weight: 900;
}

.machine-core strong,
.machine-core small {
  display: block;
  font-family: var(--mono);
}

.machine-core strong {
  font-size: clamp(0.88rem, 2vw, 1.05rem);
}

.machine-core small {
  margin-top: 0.22rem;
  opacity: 0.74;
  font-size: 0.68rem;
}

.machine-outputs {
  display: grid;
  gap: 0.4rem;
}

.machine-outputs span {
  padding: 0.7rem 0.8rem;
  color: #d2ddd5;
}

.machine-outputs b {
  display: inline-block;
  min-width: 5.3rem;
  color: var(--acid);
}

.console-readout {
  margin: 1rem 0 0;
  color: #9eb7aa;
  font-family: var(--mono);
  font-size: 0.68rem;
}

.console-readout span {
  color: var(--acid);
}

.machine-section,
.screenshot-section,
.podman-section {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.thesis-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(320px, 0.72fr);
  gap: clamp(2rem, 7vw, 7rem);
  align-items: start;
}

.thesis-grid .section-heading {
  margin-bottom: 0;
}

.thesis-line {
  margin-bottom: 1rem;
  color: #86d2af;
  font-family: var(--mono);
  font-size: clamp(1.25rem, 2vw, 1.55rem);
  font-weight: 900;
}

.stack-equation {
  display: grid;
  grid-template-columns: 1fr auto 1fr auto 1fr auto 1.25fr;
  gap: 0.75rem;
  align-items: center;
  margin-top: clamp(2.5rem, 6vw, 5rem);
  padding: 1.2rem;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-md);
  background: var(--paper-strong);
  box-shadow: 7px 7px 0 rgba(184, 227, 75, 0.65);
  font-family: var(--mono);
  font-size: clamp(0.76rem, 1.5vw, 0.95rem);
  text-align: center;
  color: var(--paper-ink);
}

.stack-equation span {
  padding: 0.75rem 0.45rem;
  border-radius: var(--radius-sm);
  background: rgba(12, 107, 77, 0.07);
}

.stack-equation b {
  color: var(--orange);
  font-size: 1.4rem;
}

.stack-equation strong {
  padding: 0.75rem;
  border-radius: var(--radius-sm);
  background: var(--terminal);
  color: var(--acid);
}

.architecture-grid,
.compiler-flow,
.module-lanes,
.screenshot-grid,
.catalogue-grid,
.catalogue-rule {
  display: grid;
  gap: 1rem;
}

.compiler-flow,
.module-lanes,
.screenshot-grid,
.service-strip,
.catalogue-rule {
  margin-bottom: 0;
  padding-left: 0;
  list-style: none;
}

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

.architecture-card {
  min-height: 19rem;
  padding: 1.35rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--paper-strong);
  color: var(--paper-ink);
}

.architecture-card:nth-child(2) {
  background: var(--terminal);
  color: #ffffff;
}

.architecture-card:nth-child(2) p {
  color: #afc0b6;
}

.architecture-card p {
  color: var(--paper-ink);
}

.card-index {
  display: block;
  margin-bottom: 3.25rem;
  color: var(--orange);
  font-size: 0.7rem;
}

.architecture-card code {
  display: block;
  margin-top: 1.5rem;
  padding-top: 0.8rem;
  border-top: 1px solid currentColor;
  color: var(--green);
  font-size: 0.75rem;
  opacity: 0.85;
}

.architecture-card:nth-child(2) code {
  color: var(--acid);
}

.compiler-flow {
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin-top: 1rem;
}

.flow-step {
  position: relative;
  min-height: 18rem;
  padding: 1.15rem;
  border-top: 4px solid var(--green);
  background: rgba(255, 255, 255, 0.5);
  color: var(--paper-ink);
}

.flow-step::after {
  position: absolute;
  top: -0.9rem;
  right: -0.8rem;
  z-index: 2;
  color: var(--orange);
  content: "→";
  font-family: var(--mono);
  font-size: 1.3rem;
  font-weight: 900;
}

.flow-step:last-child::after {
  display: none;
}

.flow-step > span {
  display: grid;
  width: 2.2rem;
  height: 2.2rem;
  margin-bottom: 2.2rem;
  place-items: center;
  border-radius: 50%;
  background: var(--green);
  color: #fff;
  font-family: var(--mono);
  font-size: 0.8rem;
  font-weight: 900;
}

.flow-step p {
  color: var(--paper-ink);
}

.flow-step > code {
  display: block;
  margin-top: 1rem;
  color: var(--green-dark);
  font-size: 0.71rem;
  overflow-wrap: anywhere;
}

.podman-section .section-heading {
  max-width: 980px;
}

.podman-section .section-heading h2 {
  max-width: 13ch;
}

.runtime-compare {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  overflow: hidden;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-lg);
  background: var(--paper-strong);
  box-shadow: 9px 9px 0 rgba(184, 227, 75, 0.72);
  color: var(--paper-ink);
}

.runtime-model {
  display: flex;
  min-width: 0;
  flex-direction: column;
  padding: clamp(1.25rem, 3vw, 2rem);
}

.runtime-model-shared {
  border-right: 1px solid var(--line-strong);
  background:
    repeating-linear-gradient(135deg, rgba(231, 92, 36, 0.05) 0, rgba(231, 92, 36, 0.05) 1px, transparent 1px, transparent 11px),
    #f2f2f2;
}

.runtime-model-isolated {
  background: var(--acid);
}

.model-label {
  margin-bottom: 2rem;
  color: var(--orange);
  font-size: 0.7rem;
  font-weight: 900;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.runtime-model-isolated .model-label {
  color: var(--green-dark);
}

.runtime-model p {
  margin: 1.35rem 0 0;
  color: var(--paper-ink);
}

.shared-daemon-map,
.domain-map {
  display: grid;
  gap: 0.55rem;
  margin-top: auto;
  padding-top: 1rem;
}

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

.shared-daemon-map span,
.shared-daemon-map b,
.shared-daemon-map strong,
.domain-map span {
  padding: 0.72rem;
  border: 1px solid rgba(0, 0, 0, 0.28);
  border-radius: var(--radius-sm);
  text-align: center;
}

.shared-daemon-map span {
  background: var(--paper-strong);
  font-size: 0.76rem;
}

.shared-daemon-map b,
.shared-daemon-map strong {
  grid-column: 1 / -1;
}

.shared-daemon-map b {
  border-style: dashed;
  color: #9b360e;
  font-size: 0.75rem;
}

.shared-daemon-map strong {
  border-color: var(--orange);
  background: var(--terminal);
  color: #ffffff;
}

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

.domain-map span {
  background: rgba(255, 255, 255, 0.52);
  text-align: left;
}

.domain-map span:last-child {
  grid-column: 1 / -1;
}

.domain-map b,
.domain-map small {
  display: block;
}

.domain-map b {
  color: var(--paper-ink);
  font-size: 0.76rem;
  overflow-wrap: anywhere;
}

.domain-map small {
  margin-top: 0.2rem;
  color: #244335;
  font-size: 0.7rem;
}

.podman-payoffs {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
  margin-top: 2rem;
}

.payoff-card {
  min-height: 18rem;
  padding: 1.25rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--terminal-soft);
}

.payoff-card .card-index {
  margin-bottom: 2.5rem;
}

.payoff-card h3 {
  color: var(--acid);
}

.payoff-card p {
  color: #ffffff;
}

.comparison-note {
  margin: 1.5rem 0 0;
  padding: 1rem 1.1rem;
  border-left: 4px solid var(--orange);
  background: rgba(231, 92, 36, 0.09);
  color: var(--ink-soft);
  font-size: 0.82rem;
}

.comparison-note strong {
  color: var(--orange);
}

.boundary-section {
  padding-top: 0;
}

.boundary-shell {
  position: relative;
  overflow: hidden;
  padding: clamp(1.5rem, 4vw, 3rem);
  border: 1px solid rgba(184, 227, 75, 0.2);
  border-radius: var(--radius-lg);
  background:
    radial-gradient(circle at 88% 6%, rgba(231, 92, 36, 0.25), transparent 23rem),
    var(--terminal);
  color: #ffffff;
  box-shadow: var(--shadow);
}

.boundary-shell::after {
  position: absolute;
  top: -0.42em;
  right: -0.06em;
  color: rgba(184, 227, 75, 0.045);
  content: "0";
  font-family: var(--mono);
  font-size: clamp(17rem, 38vw, 34rem);
  font-weight: 900;
  line-height: 1;
  pointer-events: none;
}

.boundary-shell > * {
  position: relative;
  z-index: 1;
}

.boundary-shell .section-heading {
  max-width: 980px;
}

.boundary-shell .section-heading > p:last-child {
  color: #b6c5bc;
}

.boundary-shell h2 {
  max-width: 12ch;
}

.boundary-shell .eyebrow,
.boundary-card h3 {
  color: var(--acid);
}

.boundary-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  overflow: hidden;
  border: 1px solid rgba(184, 227, 75, 0.18);
  border-radius: var(--radius-md);
  background: rgba(184, 227, 75, 0.18);
}

.boundary-card {
  min-height: 17rem;
  padding: 1.25rem;
  background: rgba(21, 39, 31, 0.96);
}

.boundary-card .card-index {
  margin-bottom: 2.25rem;
}

.boundary-card p {
  color: #ffffff;
}

.boundary-card > code {
  display: block;
  margin-top: 1.4rem;
  padding-top: 0.8rem;
  border-top: 1px solid rgba(184, 227, 75, 0.22);
  color: var(--amber);
  font-size: 0.72rem;
  overflow-wrap: anywhere;
}

.boundary-readout {
  margin: 1.25rem 0 0;
  color: #a7bfaf;
  font-family: var(--mono);
  font-size: 0.76rem;
}

.modules-section .section-heading {
  max-width: 920px;
}

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

.module-lane {
  min-height: 16.5rem;
  padding: 1.15rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--paper-strong);
  color: var(--paper-ink);
}

.module-lane-extension {
  border-color: var(--green);
  background: var(--acid);
}

.lane-symbol {
  display: grid;
  width: 3.2rem;
  height: 3.2rem;
  margin-bottom: 2.8rem;
  place-items: center;
  border: 1px solid var(--line-strong);
  color: var(--green);
  font-family: var(--mono);
  font-size: 0.9rem;
  font-weight: 900;
}

.module-lane-extension .lane-symbol {
  border-color: var(--paper-ink);
  color: var(--paper-ink);
}

.module-lane p {
  color: var(--paper-ink);
}

.module-lane-extension p {
  color: var(--paper-ink);
}

.service-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  margin-top: 1.25rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--line);
}

.service-strip li {
  padding: 0.42rem 0.62rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.58);
  color: var(--paper-ink);
  font-family: var(--mono);
  font-size: 0.72rem;
}

.service-strip li:last-child {
  border-style: dashed;
  border-color: var(--green);
  color: var(--green-dark);
}

.section-link {
  margin: 1.2rem 0 0;
  font-weight: 900;
}

.section-link a:hover {
  color: var(--green);
}

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

.screenshot-card,
.catalogue-card {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--paper-strong);
  color: var(--paper-ink);
  transition: transform 180ms ease, box-shadow 180ms ease;
}

.screenshot-card:hover,
.catalogue-card:hover {
  transform: translateY(-4px);
  box-shadow: 6px 6px 0 rgba(12, 107, 77, 0.18);
}

.screenshot-card figure,
.catalogue-card figure {
  margin: 0;
  border-bottom: 1px solid var(--line);
  background: #ffffff;
}

.screenshot-card img,
.catalogue-card img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  object-position: top left;
}

.screenshot-card img {
  aspect-ratio: 8 / 5;
}

.catalogue-card img {
  aspect-ratio: 16 / 9;
}

.screenshot-card > div,
.catalogue-card > div {
  padding: 1.1rem;
}

.screenshot-card h3,
.catalogue-card h3 {
  margin-bottom: 0.45rem;
}

.screenshot-card p,
.catalogue-card p {
  margin-bottom: 0;
  color: var(--paper-ink);
}

.surface-type {
  display: block;
  margin-bottom: 0.75rem;
  color: var(--orange);
  font-size: 0.66rem;
}

.evidence-note {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.55rem 1rem;
  align-items: start;
  margin: -0.5rem 0 1.5rem;
  padding: 1rem 1.1rem;
  border-left: 4px solid var(--acid);
  background: var(--terminal-soft);
  color: var(--ink-soft);
  font-size: 0.82rem;
}

.evidence-note strong {
  color: #ffffff;
}

.fit-card,
.final-panel {
  padding: clamp(1.5rem, 4vw, 3rem);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
}

.fit-card {
  border: 1px solid rgba(184, 227, 75, 0.18);
  background:
    radial-gradient(circle at 92% 8%, rgba(184, 227, 75, 0.14), transparent 18rem),
    var(--terminal);
  color: #f2f7ed;
}

.fit-card .eyebrow {
  color: var(--acid);
}

.fit-card h2 {
  max-width: 12ch;
}

.fit-card h3 {
  color: var(--acid);
}

.fit-card .fit-intro,
.fit-card .check-list,
.fit-card .plain-list {
  color: #b6c5bc;
}

.fit-columns {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(1.5rem, 5vw, 4rem);
  margin-top: 2.5rem;
}

.check-list,
.plain-list {
  display: grid;
  gap: 0.75rem;
  padding: 0;
  list-style: none;
}

.check-list li,
.plain-list li {
  padding: 0 0 0.8rem 1.5rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}

.check-list li,
.plain-list li {
  position: relative;
}

.check-list li::before {
  position: absolute;
  left: 0;
  color: var(--acid);
  content: "+";
  font-family: var(--mono);
  font-weight: 900;
}

.plain-list li::before {
  position: absolute;
  left: 0;
  color: var(--orange);
  content: "−";
  font-family: var(--mono);
  font-weight: 900;
}

.final-panel {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: clamp(1.5rem, 5vw, 4rem);
  align-items: start;
  border: 1px solid var(--line-strong);
  background:
    radial-gradient(circle at 8% 10%, rgba(243, 182, 63, 0.26), transparent 18rem),
    var(--paper-strong);
  box-shadow: 10px 10px 0 var(--orange);
  color: var(--paper-ink);
}

.brief-box {
  padding: 1.2rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.7);
  color: var(--paper-ink);
}

.brief-box textarea {
  width: 100%;
  min-height: 13rem;
  resize: vertical;
  padding: 1rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--terminal);
  color: #ffffff;
  font-family: var(--mono);
  font-size: 0.8rem;
  line-height: 1.55;
}

.after-brief {
  margin: 0.9rem 0 0;
  color: var(--paper-ink);
  font-size: 0.92rem;
}

.copy-status {
  min-height: 1.5em;
  margin: 0.15rem 0 0;
  color: var(--green-dark);
  font-family: var(--mono);
  font-size: 0.76rem;
  font-weight: 800;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  clip-path: inset(50%);
}

.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.25rem;
  width: min(var(--max), calc(100% - 2rem));
  margin: 0 auto;
  padding: 2rem 0 3rem;
  border-top: 1px solid var(--line);
  color: var(--ink-soft);
}

.site-footer p {
  margin: 0;
}

.footer-links {
  flex-wrap: wrap;
  gap: 1rem;
  font-weight: 850;
}

.footer-links a:hover {
  color: var(--green);
}

/* Module catalogue */

.catalogue-hero {
  padding-bottom: clamp(3.5rem, 6vw, 5rem);
}

.catalogue-page h1 {
  max-width: 15ch;
  font-size: clamp(3.5rem, 7.2vw, 6.5rem);
}

.catalogue-hero .section-heading {
  max-width: 980px;
}

.catalogue-rule {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  max-width: 980px;
  margin-top: 2rem;
}

.catalogue-rule li {
  padding: 1rem;
  border-top: 3px solid var(--green);
  background: rgba(255, 255, 255, 0.62);
  color: var(--paper-ink);
  font-family: var(--mono);
  font-size: 0.8rem;
}

.catalogue-rule b {
  display: block;
  margin-bottom: 0.3rem;
  color: var(--green-dark);
  font-size: 1rem;
}

.catalogue-section {
  padding-top: clamp(3.5rem, 6vw, 5rem);
  border-top: 1px solid var(--line);
}

.catalogue-section .section-heading {
  max-width: 900px;
}

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

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

.catalogue-card-text {
  min-height: 13.5rem;
  background:
    repeating-linear-gradient(135deg, rgba(12, 107, 77, 0.05) 0, rgba(12, 107, 77, 0.05) 1px, transparent 1px, transparent 12px),
    var(--paper-strong);
  color: var(--paper-ink);
}

.catalogue-card-text > div {
  display: flex;
  min-height: 13.5rem;
  flex-direction: column;
}

.catalogue-card-text h3 {
  margin-top: auto;
}

.catalogue-card-extension {
  border-color: var(--green);
  background: var(--acid);
}

.catalogue-card-latest {
  border-color: var(--orange);
  box-shadow: inset 0 0 0 1px rgba(231, 92, 36, 0.2);
}

.catalogue-card-extension p {
  color: var(--paper-ink);
}

/* Engineering case study */

.engineering-page h1 {
  max-width: 12ch;
  font-size: clamp(3.4rem, 7.2vw, 6.7rem);
}

.engineering-hero {
  display: grid;
  min-height: calc(100vh - 5rem);
  grid-template-columns: minmax(0, 1.04fr) minmax(390px, 0.96fr);
  align-items: center;
  gap: clamp(2rem, 6vw, 5rem);
}

.engineering-hero-copy {
  max-width: 720px;
}

.engineering-lede {
  max-width: 680px;
  color: var(--ink-soft);
  font-size: clamp(1.1rem, 1.7vw, 1.35rem);
}

.language-machine {
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-md);
  background: var(--terminal-soft);
  box-shadow: 12px 12px 0 rgba(231, 92, 36, 0.88);
  overflow: hidden;
  transform: rotate(0.5deg);
}

.language-machine-bar {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.7rem 1rem;
  border-bottom: 1px solid var(--line);
  background: #050505;
  color: var(--ink-soft);
  font-size: 0.72rem;
  font-weight: 850;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.language-flow {
  display: grid;
  gap: 0;
  margin: 0;
  padding: 1.25rem;
  list-style: none;
}

.language-flow li {
  position: relative;
  display: grid;
  grid-template-columns: 2.3rem 1fr auto;
  align-items: center;
  gap: 0.8rem;
  min-height: 4.1rem;
  padding: 0.65rem 0.75rem;
  border: 1px solid var(--line);
  border-bottom: 0;
  background: #0b0b0b;
}

.language-flow li:last-child {
  border-bottom: 1px solid var(--line);
}

.language-flow li::after {
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  height: 2px;
  background: var(--line);
  content: "";
}

.language-flow .language-python::after {
  background: #56a8ff;
}

.language-flow .language-shell::after {
  background: var(--acid);
}

.language-flow .language-kotlin::after {
  background: #a97bff;
}

.language-flow .language-typescript::after {
  background: #44d5e7;
}

.language-flow li > span {
  color: var(--orange);
  font-size: 0.72rem;
  font-weight: 900;
}

.language-flow b {
  font-size: 0.88rem;
}

.language-flow small {
  color: var(--ink-soft);
  font-size: 0.68rem;
  text-align: right;
}

.language-machine > p {
  margin: 0;
  padding: 0 1.25rem 1.25rem;
  color: var(--ink-soft);
  font-size: 0.72rem;
}

.language-machine > p span {
  color: var(--acid);
}

.engineering-thesis,
.source-section,
.contract-section,
.extension-section,
.change-section {
  border-top: 1px solid var(--line);
}

.engineering-thesis-grid,
.source-grid,
.contract-grid,
.extension-grid {
  display: grid;
  gap: 1rem;
}

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

.engineering-thesis-grid article {
  min-height: 18rem;
  padding: 1.5rem;
  border-top: 4px solid var(--acid);
  background: var(--paper);
  color: var(--paper-ink);
}

.engineering-thesis-grid article:nth-child(2) {
  border-color: var(--orange);
}

.engineering-thesis-grid article:nth-child(3) {
  border-color: var(--green);
}

.engineering-thesis-grid article > span,
.contract-grid article > span {
  display: block;
  margin-bottom: 4rem;
  color: var(--green-dark);
  font-size: 0.72rem;
  font-weight: 900;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.engineering-thesis-grid p,
.contract-grid p,
.source-card p,
.source-card li {
  color: #303030;
}

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

.source-card {
  display: flex;
  min-height: 34rem;
  flex-direction: column;
  padding: clamp(1.35rem, 3vw, 2rem);
  border-top: 5px solid var(--acid);
  border-radius: 0 0 var(--radius-md) var(--radius-md);
  background: var(--paper);
  color: var(--paper-ink);
}

.source-python {
  border-color: #3188df;
}

.source-kotlin {
  border-color: #7549d7;
}

.source-typescript {
  border-color: #149aae;
}

.source-card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 3rem;
  color: var(--green-dark);
  font-size: 0.75rem;
  font-weight: 900;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.source-card h3 {
  max-width: 19ch;
  font-size: clamp(1.8rem, 3.2vw, 2.8rem);
}

.source-card ul {
  display: grid;
  gap: 0.45rem;
  margin: 1rem 0 2rem;
  padding-left: 1.2rem;
  font-size: 0.82rem;
}

.source-links {
  display: grid;
  gap: 0.55rem;
  margin-top: auto;
}

.source-links a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.8rem;
  border: 1px solid #b8beb9;
  border-radius: var(--radius-sm);
  background: #f2f4f1;
  color: var(--paper-ink);
  text-decoration: none;
}

.source-links a:hover {
  border-color: var(--green);
  background: #e8f2ed;
}

.source-links code {
  min-width: 0;
  font-size: 0.72rem;
  overflow-wrap: anywhere;
}

.source-links span {
  flex: 0 0 auto;
  color: var(--green-dark);
  font-size: 0.68rem;
  font-weight: 900;
}

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

.contract-grid article {
  min-height: 20rem;
  padding: 1.25rem;
  border: 1px solid var(--line-strong);
  background: #111;
}

.contract-grid article > span {
  color: var(--acid);
}

.contract-grid p {
  color: var(--ink-soft);
  font-size: 0.82rem;
}

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

.extension-card {
  display: flex;
  min-height: 15rem;
  flex-direction: column;
  padding: 1.25rem;
  border: 1px solid var(--line-strong);
  background: var(--terminal-soft);
  text-decoration: none;
}

.extension-card:hover {
  border-color: var(--acid);
  transform: translateY(-2px);
}

.extension-card span {
  color: var(--orange);
  font-size: 0.72rem;
  font-weight: 900;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.extension-card strong {
  margin: auto 0 1rem;
  font-size: 1.25rem;
}

.extension-card small {
  color: var(--acid);
  font-weight: 800;
}

.change-panel {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(460px, 1.1fr);
  gap: clamp(2rem, 5vw, 5rem);
  padding: clamp(1.5rem, 4vw, 3rem);
  border-radius: var(--radius-lg);
  background: var(--paper);
  color: var(--paper-ink);
  box-shadow: 10px 10px 0 var(--orange);
}

.change-panel h2 {
  font-size: clamp(2.5rem, 5vw, 4.5rem);
}

.change-panel > div > p:last-child,
.change-steps p {
  color: #303030;
}

.change-steps {
  display: grid;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
}

.change-steps li {
  display: grid;
  grid-template-columns: 2.5rem 1fr;
  gap: 1rem;
  padding: 0.9rem 0;
  border-bottom: 1px solid #c7cbc8;
}

.change-steps li:last-child {
  border-bottom: 0;
}

.change-steps li > span {
  color: var(--green);
  font-size: 0.72rem;
  font-weight: 900;
}

.change-steps strong {
  display: block;
  margin-bottom: 0.25rem;
}

.change-steps p {
  margin: 0;
  font-size: 0.78rem;
}

.engineering-cta-actions {
  display: grid;
  align-content: center;
  gap: 0.7rem;
}

.engineering-cta-actions .button {
  justify-content: center;
}

@media (prefers-reduced-motion: no-preference) {
  .reveal {
    animation: lift-in 500ms cubic-bezier(0.2, 0.75, 0.2, 1) both;
  }

  .architecture-card:nth-child(2),
  .module-lane:nth-child(2),
  .screenshot-card:nth-child(2),
  .boundary-card:nth-child(2),
  .source-card:nth-child(2),
  .engineering-thesis-grid article:nth-child(2),
  .extension-card:nth-child(2),
  .catalogue-card:nth-child(2) {
    animation-delay: 70ms;
  }

  .architecture-card:nth-child(3),
  .module-lane:nth-child(3),
  .screenshot-card:nth-child(3),
  .boundary-card:nth-child(3),
  .source-card:nth-child(3),
  .engineering-thesis-grid article:nth-child(3),
  .extension-card:nth-child(3),
  .catalogue-card:nth-child(3) {
    animation-delay: 140ms;
  }

  .module-lane:nth-child(4),
  .screenshot-card:nth-child(4),
  .boundary-card:nth-child(4),
  .source-card:nth-child(4),
  .extension-card:nth-child(4),
  .catalogue-card:nth-child(4) {
    animation-delay: 210ms;
  }

  @keyframes lift-in {
    from {
      opacity: 0;
      transform: translateY(14px);
    }

    to {
      opacity: 1;
      transform: translateY(0);
    }
  }
}

@media (max-width: 1020px) {
  .nav-links a:not(.nav-cta) {
    display: none;
  }

  .p0-hero,
  .engineering-hero,
  .thesis-grid,
  .final-panel,
  .runtime-compare,
  .change-panel {
    grid-template-columns: 1fr;
  }

  .runtime-model-shared {
    border-right: 0;
    border-bottom: 1px solid var(--line-strong);
  }

  .p0-hero {
    min-height: auto;
  }

  .engineering-hero {
    min-height: auto;
  }

  .hero-copy {
    max-width: 800px;
  }

  .machine-console {
    width: min(700px, calc(100% - 0.8rem));
    transform: rotate(0.5deg);
  }

  .compiler-flow,
  .module-lanes,
  .podman-payoffs,
  .contract-grid,
  .extension-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

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

@media (max-width: 820px) {
  .architecture-grid,
  .boundary-grid,
  .catalogue-rule,
  .podman-payoffs,
  .engineering-thesis-grid {
    grid-template-columns: 1fr;
  }

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

  .architecture-card {
    min-height: auto;
  }

  .card-index {
    margin-bottom: 2rem;
  }

  .stack-equation {
    grid-template-columns: 1fr;
  }

  .stack-equation b {
    transform: rotate(90deg);
  }

  .stack-equation b:nth-of-type(3) {
    transform: rotate(90deg);
  }

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

@media (max-width: 620px) {
  .section {
    width: min(var(--max), calc(100% - 1.2rem));
    padding: 3.5rem 0;
  }

  h1 {
    font-size: clamp(3.2rem, 16vw, 5rem);
  }

  h2 {
    font-size: clamp(2.3rem, 11.5vw, 3.4rem);
  }

  .nav {
    width: calc(100% - 1.2rem);
  }

  .nav-cta {
    font-size: 0.76rem;
  }

  .brand-name {
    display: none;
  }

  .machine-console {
    width: calc(100% - 0.55rem);
    box-shadow: 7px 7px 0 rgba(231, 92, 36, 0.9);
  }

  .console-bar {
    grid-template-columns: 1fr auto;
  }

  .console-bar > span:nth-child(2) {
    display: none;
  }

  .machine-inputs,
  .compiler-flow,
  .module-lanes,
  .screenshot-grid,
  .catalogue-grid,
  .catalogue-grid-compact,
  .contract-grid,
  .extension-grid {
    grid-template-columns: 1fr;
  }

  .language-machine {
    box-shadow: 7px 7px 0 rgba(231, 92, 36, 0.88);
  }

  .language-flow li {
    grid-template-columns: 2rem 1fr;
  }

  .language-flow small {
    grid-column: 2;
    text-align: left;
  }

  .engineering-thesis-grid article,
  .source-card,
  .contract-grid article,
  .extension-card {
    min-height: auto;
  }

  .engineering-thesis-grid article > span,
  .contract-grid article > span,
  .source-card-head {
    margin-bottom: 2rem;
  }

  .source-links a {
    align-items: flex-start;
    flex-direction: column;
    gap: 0.35rem;
  }

  .machine-inputs span {
    min-height: auto;
  }

  .flow-step {
    min-height: auto;
  }

  .flow-step::after {
    top: auto;
    right: 50%;
    bottom: -1.1rem;
    transform: rotate(90deg);
  }

  .module-lane {
    min-height: auto;
  }

  .lane-symbol {
    margin-bottom: 2rem;
  }

  .fit-card,
  .boundary-shell,
  .final-panel {
    padding: 1.2rem;
    border-radius: var(--radius-md);
  }

  .final-panel {
    box-shadow: 6px 6px 0 var(--orange);
  }

  .brief-actions .button,
  .hero-actions .button {
    width: 100%;
  }

  .evidence-note {
    grid-template-columns: 1fr;
  }

  .site-footer {
    align-items: flex-start;
    flex-direction: column;
    width: calc(100% - 1.2rem);
  }
}