:root {
  color-scheme: dark;
  font-family:
    ui-sans-serif,
    system-ui,
    -apple-system,
    BlinkMacSystemFont,
    'Segoe UI',
    sans-serif;
  background: oklch(0.145 0.014 258);
  color: oklch(0.965 0.008 255);
  --surface: oklch(0.18 0.018 258);
  --surface-raised: oklch(0.215 0.022 258);
  --line: oklch(0.35 0.025 258);
  --muted: oklch(0.75 0.025 255);
  --primary: oklch(0.72 0.16 258);
  --primary-strong: oklch(0.8 0.12 258);
  --primary-ink: oklch(0.16 0.04 258);
  --signal: oklch(0.82 0.15 85);
  --focus: oklch(0.9 0.16 95);
  --content: 78rem;
  --gutter: clamp(1.25rem, 4vw, 4rem);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: auto;
}

body {
  min-height: 100vh;
  margin: 0;
  background-color: oklch(0.145 0.014 258);
  background-image:
    linear-gradient(to right, oklch(0.28 0.02 258 / 0.2) 1px, transparent 1px),
    linear-gradient(to bottom, oklch(0.28 0.02 258 / 0.2) 1px, transparent 1px);
  background-size: 3rem 3rem;
  color: oklch(0.965 0.008 255);
  line-height: 1.5;
}

a {
  color: inherit;
}

.skip-link {
  position: fixed;
  inset-block-start: 0.75rem;
  inset-inline-start: 0.75rem;
  z-index: 10;
  padding: 0.65rem 0.85rem;
  background: var(--focus);
  color: var(--primary-ink);
  font-weight: 750;
  transform: translateY(-160%);
}

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

.site-header,
main,
footer {
  width: min(100%, var(--content));
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.site-header {
  min-height: 5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  border-block-end: 1px solid var(--line);
}

.wordmark {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  text-decoration: none;
}

.wordmark > span {
  display: grid;
  width: 2rem;
  aspect-ratio: 1;
  place-items: center;
  border: 1px solid var(--primary);
  color: var(--primary-strong);
  font-size: 0.72rem;
  font-weight: 850;
  letter-spacing: -0.02em;
}

.wordmark strong {
  font-size: 1.05rem;
  letter-spacing: -0.02em;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.release-status {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  margin: 0;
  color: var(--muted);
  font-size: 0.83rem;
}

.release-status::before {
  content: '';
  width: 0.55rem;
  flex: 0 0 auto;
  aspect-ratio: 1;
  border-radius: 50%;
  background: var(--signal);
  box-shadow: 0 0 0 0.25rem oklch(0.82 0.15 85 / 0.12);
}

.header-source {
  color: var(--primary-strong);
  font-size: 0.83rem;
  font-weight: 720;
  text-underline-offset: 0.25em;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(18rem, 0.6fr);
  align-items: end;
  gap: clamp(2.5rem, 8vw, 8rem);
  min-height: min(47rem, calc(100vh - 5rem));
  padding-block: clamp(4.5rem, 10vw, 8rem);
}

.context {
  margin: 0 0 1.25rem;
  color: var(--primary-strong);
  font-size: 0.9rem;
  font-weight: 720;
}

h1,
h2,
h3,
p {
  overflow-wrap: break-word;
}

p {
  text-wrap: pretty;
}

h1,
h2,
h3 {
  text-wrap: balance;
}

h1 {
  max-width: 12ch;
  margin: 0;
  font-size: clamp(3.1rem, 7vw, 5.5rem);
  letter-spacing: -0.035em;
  line-height: 0.98;
}

.lede {
  max-width: 58ch;
  margin: 2rem 0 0;
  color: var(--muted);
  font-size: clamp(1.05rem, 1.5vw, 1.22rem);
  line-height: 1.7;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem 1.35rem;
  margin-block-start: 2.25rem;
}

.primary-action {
  padding: 0.82rem 1.05rem;
  border: 1px solid var(--primary);
  border-radius: 0.25rem;
  background: var(--primary);
  color: var(--primary-ink);
  font-weight: 780;
  text-decoration: none;
}

.primary-action:hover {
  background: var(--primary-strong);
  border-color: var(--primary-strong);
}

.text-action {
  color: var(--primary-strong);
  font-weight: 720;
  text-underline-offset: 0.3em;
}

.text-action:hover {
  text-decoration-thickness: 0.15em;
}

a:focus-visible,
pre:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 3px;
}

.command-panel {
  border-block-start: 3px solid var(--signal);
  background: var(--surface);
  box-shadow: 1rem 1rem 0 oklch(0.1 0.01 258 / 0.55);
}

.panel-heading {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.85rem 1rem;
  border-block-end: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 700;
}

pre {
  margin: 0;
  padding: 1.25rem 1rem;
  overflow-x: auto;
  color: oklch(0.91 0.03 255);
  font-family: ui-monospace, 'SFMono-Regular', Consolas, monospace;
  font-size: 0.84rem;
  line-height: 1.9;
}

pre span,
pre strong {
  display: block;
}

pre span::before,
pre strong::before {
  content: '$ ';
  color: var(--muted);
}

pre strong {
  color: var(--signal);
  font-weight: 650;
}

.command-panel > p {
  margin: 0;
  padding: 0 1rem 1.25rem;
  color: var(--muted);
  font-size: 0.82rem;
}

.contract,
.release-gate {
  padding-block: clamp(4rem, 8vw, 7rem);
  border-block-start: 1px solid var(--line);
}

.section-intro {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(18rem, 1.15fr);
  gap: 1.5rem clamp(2rem, 7vw, 7rem);
  align-items: end;
}

.section-intro .context {
  grid-column: 1 / -1;
  margin-block-end: -0.25rem;
}

h2 {
  margin: 0;
  font-size: clamp(2rem, 4vw, 3.5rem);
  letter-spacing: -0.03em;
  line-height: 1.05;
}

.section-intro > p:last-child {
  max-width: 52ch;
  margin: 0;
  color: var(--muted);
  font-size: 1.05rem;
  line-height: 1.65;
}

.delivery-flow {
  margin: clamp(3rem, 6vw, 5rem) 0 0;
  padding: 0;
  list-style: none;
  border-block-start: 1px solid var(--line);
}

.delivery-flow li {
  display: grid;
  grid-template-columns: 4.5rem minmax(0, 1fr);
  gap: 1rem;
  padding-block: 1.5rem;
  border-block-end: 1px solid var(--line);
}

.step-number {
  color: var(--signal);
  font-family: ui-monospace, 'SFMono-Regular', Consolas, monospace;
  font-size: 0.82rem;
}

.delivery-flow h3 {
  margin: 0;
  font-size: 1.12rem;
  letter-spacing: -0.015em;
}

.delivery-flow p {
  max-width: 68ch;
  margin: 0.35rem 0 0;
  color: var(--muted);
}

.release-gate > .context {
  margin-block-end: 1.25rem;
}

.release-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(18rem, 1.15fr);
  gap: 1.5rem clamp(2rem, 7vw, 7rem);
  align-items: start;
}

.release-copy > p:first-child {
  max-width: 58ch;
  margin: 0;
  color: var(--muted);
  font-size: 1.05rem;
  line-height: 1.65;
}

.release-next {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  margin: 1.5rem 0 0;
  color: var(--primary-strong);
  font-weight: 720;
}

.release-next::before {
  content: '';
  width: 0.55rem;
  flex: 0 0 auto;
  aspect-ratio: 1;
  border-radius: 50%;
  background: var(--signal);
  box-shadow: 0 0 0 0.25rem oklch(0.82 0.15 85 / 0.12);
}

footer {
  display: flex;
  justify-content: space-between;
  gap: 1rem 2rem;
  padding-block: 1.75rem 2.5rem;
  border-block-start: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.82rem;
}

footer p {
  margin: 0;
}

@media (min-width: 54rem) {
  .delivery-flow {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .delivery-flow li {
    grid-template-columns: 1fr;
    align-content: start;
    min-height: 13rem;
    padding-inline: 1.25rem;
    border-inline-end: 1px solid var(--line);
  }

  .delivery-flow li:first-child {
    padding-inline-start: 0;
  }

  .delivery-flow li:last-child {
    padding-inline-end: 0;
    border-inline-end: 0;
  }
}

@media (max-width: 53.99rem) {
  .hero,
  .section-intro,
  .release-layout {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
  }

  .command-panel {
    width: 100%;
    max-width: 30rem;
  }
}

@media (max-width: 34rem) {
  .site-header {
    align-items: flex-start;
    flex-direction: column;
    justify-content: center;
    padding-block: 1rem;
  }

  .header-actions {
    width: 100%;
    justify-content: space-between;
  }

  h1 {
    font-size: clamp(2.6rem, 14vw, 4rem);
  }

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

  footer {
    flex-direction: column;
  }
}

@media (prefers-reduced-motion: no-preference) {
  html {
    scroll-behavior: smooth;
  }

  .hero-copy,
  .command-panel {
    animation: enter 480ms cubic-bezier(0.22, 1, 0.36, 1) both;
  }

  .command-panel {
    animation-delay: 90ms;
  }

  .primary-action,
  .text-action {
    transition:
      background-color 150ms ease,
      border-color 150ms ease,
      text-decoration-thickness 150ms ease;
  }
}

@keyframes enter {
  from {
    opacity: 0;
    transform: translateY(0.7rem);
  }
}