* {
  box-sizing: border-box;
}

::selection {
  color: var(--spawnd-void-background);
  background: var(--spawnd-void-signal);
}

html {
  color: var(--spawnd-void-text);
  background: var(--spawnd-void-background);
  font-family: var(--spawnd-void-font);
  scroll-behavior: smooth;
}

body {
  min-width: 320px;
  min-height: 100vh;
  margin: 0;
  letter-spacing: var(--spawnd-void-tracking);
  background:
    repeating-linear-gradient(
      0deg,
      transparent 0,
      transparent 3px,
      rgb(232 230 220 / 0.018) 3px,
      rgb(232 230 220 / 0.018) 4px
    ),
    var(--spawnd-void-background);
}

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

a:focus-visible,
button:focus-visible {
  outline: 1px solid var(--spawnd-void-signal);
  outline-offset: 4px;
}

.site-shell {
  width: min(var(--spawnd-void-content-width), calc(100% - 48px));
  margin: 0 auto;
}

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

.nav {
  display: flex;
  min-height: 68px;
  align-items: center;
  justify-content: space-between;
  border-bottom: var(--spawnd-void-pixel) solid var(--spawnd-void-line);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.brand {
  color: var(--spawnd-void-text);
  font-weight: 700;
}

.nav-links {
  display: flex;
  gap: 28px;
  color: var(--spawnd-void-muted);
}

.nav-links a,
footer a {
  transition: color var(--spawnd-void-transition);
}

.nav-links a:hover,
footer a:hover {
  color: var(--spawnd-void-signal);
}

.hero {
  display: grid;
  min-height: 640px;
  grid-template-columns: minmax(0, 1.1fr) minmax(420px, 0.9fr);
  gap: clamp(48px, 7vw, 104px);
  align-items: center;
  padding: 84px 0;
  border-bottom: var(--spawnd-void-pixel) solid var(--spawnd-void-line);
}

.lineage,
.section-index {
  margin: 0;
  color: var(--spawnd-void-signal);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  text-wrap: pretty;
}

h1 {
  max-width: 780px;
  margin: 28px 0 30px;
  font-size: clamp(54px, 7.3vw, 102px);
  font-weight: 700;
  letter-spacing: -0.075em;
  line-height: 0.9;
}

h1 span {
  color: var(--spawnd-void-muted);
}

.lede {
  max-width: 690px;
  margin: 0;
  color: var(--spawnd-void-muted);
  font-size: clamp(15px, 1.55vw, 18px);
  line-height: 1.72;
}

.hero-command {
  display: flex;
  width: fit-content;
  min-width: 220px;
  gap: 12px;
  margin-top: 36px;
  padding: 13px 16px;
  border: var(--spawnd-void-pixel) solid var(--spawnd-void-line-strong);
  background: var(--spawnd-void-surface);
  color: var(--spawnd-void-text);
  font-size: 14px;
}

.hero-command span,
.runtime-command span {
  color: var(--spawnd-void-spawn);
}

.cube-viewport {
  display: grid;
  min-width: 0;
  min-height: 420px;
  place-items: center;
  overflow: visible;
}

.spawner-cube {
  display: block;
  width: calc(var(--spawner-cube-columns) * 1ch);
  height: calc(var(--spawner-cube-rows) * 1.2em);
  margin: 0;
  overflow: visible;
  color: var(--spawnd-void-signal);
  font-family: var(--spawnd-void-font);
  font-size: clamp(17px, 2vw, 25px);
  font-variant-ligatures: none;
  letter-spacing: 0;
  line-height: 1.2;
  white-space: pre;
}

.definition,
.spawn-sequence,
.runtime-section {
  display: grid;
  grid-template-columns: minmax(150px, 0.25fr) minmax(0, 0.75fr);
  gap: clamp(32px, 6vw, 88px);
  padding: 100px 0;
  border-bottom: var(--spawnd-void-pixel) solid var(--spawnd-void-line);
}

.section-index {
  padding-top: 9px;
  color: var(--spawnd-void-quiet);
}

.definition h2,
.runtime-section h2 {
  max-width: 820px;
  margin: 0 0 30px;
  font-size: clamp(36px, 5.3vw, 70px);
  letter-spacing: -0.06em;
  line-height: 0.98;
}

.definition-copy > p {
  max-width: 760px;
  margin: 0;
  color: var(--spawnd-void-muted);
  font-size: 16px;
  line-height: 1.75;
}

.system-diagram,
.runtime-command {
  margin: 44px 0 0;
  padding: 24px;
  overflow-x: auto;
  border: var(--spawnd-void-pixel) solid var(--spawnd-void-line-strong);
  background: var(--spawnd-void-surface);
  color: var(--spawnd-void-text);
  font: 13px/1.75 var(--spawnd-void-font);
}

.spawn-sequence > div {
  border-top: var(--spawnd-void-pixel) solid var(--spawnd-void-line-strong);
}

.spawn-step {
  display: grid;
  grid-template-columns: minmax(170px, 0.28fr) minmax(0, 0.47fr) minmax(170px, 0.25fr);
  gap: 28px;
  align-items: start;
  padding: 28px 0;
  border-bottom: var(--spawnd-void-pixel) solid var(--spawnd-void-line-strong);
}

.spawn-step h3,
.spawn-step p,
.spawn-step code {
  margin: 0;
}

.spawn-step h3 {
  font-size: 17px;
  line-height: 1.4;
}

.spawn-step p {
  color: var(--spawnd-void-muted);
  font-size: 13px;
  line-height: 1.65;
}

.spawn-step code {
  color: var(--spawnd-void-signal);
  font: 10px/1.65 var(--spawnd-void-font);
  letter-spacing: 0.06em;
  text-align: right;
}

.runtime-list {
  margin: 46px 0 0;
  border-top: var(--spawnd-void-pixel) solid var(--spawnd-void-line-strong);
}

.runtime-list > div {
  display: grid;
  grid-template-columns: minmax(170px, 0.28fr) minmax(0, 0.72fr);
  gap: 28px;
  padding: 25px 0;
  border-bottom: var(--spawnd-void-pixel) solid var(--spawnd-void-line-strong);
}

.runtime-list dt {
  color: var(--spawnd-void-text);
  font-size: 14px;
  font-weight: 700;
}

.runtime-list dd {
  margin: 0;
  color: var(--spawnd-void-muted);
  font-size: 13px;
  line-height: 1.7;
}

.runtime-command {
  color: var(--spawnd-void-muted);
}

.publisher-note {
  display: grid;
  grid-template-columns: minmax(150px, 0.25fr) minmax(0, 0.75fr);
  gap: clamp(32px, 6vw, 88px);
  padding: 38px 0;
  border-bottom: var(--spawnd-void-pixel) solid var(--spawnd-void-line);
  color: var(--spawnd-void-quiet);
  font-size: 12px;
  line-height: 1.7;
}

.publisher-note::before {
  content: "PUBLISHER";
  color: var(--spawnd-void-quiet);
  font-size: 10px;
  letter-spacing: 0.1em;
}

.publisher-note p {
  max-width: 720px;
  margin: 0;
}

footer {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  padding: 32px 0 52px;
  color: var(--spawnd-void-quiet);
  font-size: 10px;
  letter-spacing: 0.09em;
}

footer div {
  display: flex;
  gap: 24px;
}

.legal {
  width: min(760px, 100%);
  margin: 0 auto;
  padding: 86px 0 120px;
}

.legal h1 {
  margin: 26px 0 20px;
  font-size: clamp(42px, 7vw, 74px);
}

.legal .updated {
  margin: 0 0 52px;
  color: var(--spawnd-void-quiet);
  font-size: 11px;
  letter-spacing: 0.06em;
}

.legal section {
  padding: 28px 0;
  border-top: var(--spawnd-void-pixel) solid var(--spawnd-void-line-strong);
}

.legal h2 {
  margin: 0 0 12px;
  font-size: 17px;
}

.legal section p {
  margin: 0 0 14px;
  color: var(--spawnd-void-muted);
  font-size: 14px;
  line-height: 1.75;
}

@media (max-width: 900px) {
  .hero {
    min-height: 0;
    grid-template-columns: 1fr;
    padding: 72px 0 54px;
  }

  .cube-viewport {
    min-height: 330px;
  }

  .spawner-cube {
    font-size: clamp(16px, 3.5vw, 24px);
  }

  .definition,
  .spawn-sequence,
  .runtime-section,
  .publisher-note {
    grid-template-columns: 1fr;
    gap: 30px;
  }

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

  .spawn-step {
    grid-template-columns: minmax(150px, 0.35fr) minmax(0, 0.65fr);
  }

  .spawn-step code {
    grid-column: 2;
    text-align: left;
  }

  .publisher-note::before {
    margin-bottom: -12px;
  }
}

@media (max-width: 640px) {
  .site-shell {
    width: min(100% - 28px, var(--spawnd-void-content-width));
  }

  .nav {
    min-height: 58px;
  }

  .nav-links {
    gap: 18px;
  }

  .nav-links a:nth-child(-n + 2) {
    display: none;
  }

  .hero {
    padding-top: 58px;
  }

  h1 {
    font-size: clamp(48px, 16vw, 72px);
  }

  .cube-viewport {
    min-height: 280px;
  }

  .spawner-cube {
    font-size: clamp(13px, 4.2vw, 18px);
  }

  .definition,
  .spawn-sequence,
  .runtime-section {
    padding: 72px 0;
  }

  .spawn-step,
  .runtime-list > div {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .spawn-step code {
    grid-column: auto;
  }

  .system-diagram,
  .runtime-command {
    padding: 18px;
    font-size: 11px;
  }

  footer {
    flex-direction: column;
  }
}

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