:root {
  color-scheme: dark;
  --canvas: oklch(13% 0.018 90);
  --surface: oklch(17% 0.018 90);
  --surface-raised: oklch(20% 0.021 90);
  --paper: oklch(94% 0.018 90);
  --muted: oklch(72% 0.025 90);
  --quiet: oklch(57% 0.022 90);
  --line: oklch(31% 0.025 90);
  --accent: oklch(83% 0.19 116);
  --warm: oklch(76% 0.16 65);
  --radius-small: 6px;
  --radius-medium: 12px;
  --content-width: 1180px;
  --page-gap: clamp(24px, 4vw, 64px);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  min-width: 320px;
  margin: 0;
  background: var(--canvas);
  color: var(--paper);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "PingFang SC", sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a {
  color: inherit;
}

a:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 4px;
}

code,
.eyebrow,
.header-meta,
.section-index,
.terminal-panel,
.scope-line,
.limits dt,
.site-footer {
  font-family: "SF Mono", "Cascadia Mono", ui-monospace, monospace;
}

.skip-link {
  position: absolute;
  top: 12px;
  left: 12px;
  z-index: 10;
  padding: 10px 14px;
  background: var(--accent);
  color: var(--canvas);
  transform: translateY(-150%);
}

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

.site-header,
.site-footer,
main {
  width: min(calc(100% - 48px), var(--content-width));
  margin-inline: auto;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 88px;
  border-bottom: 1px solid var(--line);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--paper);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: -0.01em;
  text-decoration: none;
}

.brand-mark {
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  border: 1px solid var(--accent);
  border-radius: var(--radius-small);
  color: var(--accent);
  font-family: "SF Mono", "Cascadia Mono", ui-monospace, monospace;
  font-size: 11px;
  letter-spacing: -0.08em;
}

.header-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--quiet);
  font-size: 10px;
  letter-spacing: 0.12em;
}

.status-dot,
.signal {
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 4px oklch(83% 0.19 116 / 0.1);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.04fr) minmax(340px, 0.96fr);
  align-items: center;
  gap: clamp(40px, 8vw, 118px);
  min-height: 650px;
  padding-block: 86px 96px;
}

.hero-copy {
  max-width: 650px;
}

.eyebrow,
.section-index {
  margin: 0 0 22px;
  color: var(--accent);
  font-size: 11px;
  letter-spacing: 0.14em;
  line-height: 1.5;
}

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

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

h1 {
  max-width: 700px;
  margin-bottom: 26px;
  color: var(--paper);
  font-family: "SF Mono", "Cascadia Mono", ui-monospace, monospace;
  font-size: clamp(38px, 5.1vw, 72px);
  font-weight: 600;
  letter-spacing: -0.055em;
  line-height: 0.99;
}

h1 code {
  color: var(--accent);
  font-size: 0.9em;
  font-weight: inherit;
}

.lede {
  max-width: 560px;
  margin-bottom: 34px;
  color: var(--muted);
  font-size: 17px;
  line-height: 1.72;
  text-wrap: pretty;
}

.hero-actions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 22px;
  margin-bottom: 28px;
}

.button {
  display: inline-flex;
  min-height: 46px;
  align-items: center;
  gap: 12px;
  padding: 0 17px;
  border-radius: var(--radius-small);
  font-family: "SF Mono", "Cascadia Mono", ui-monospace, monospace;
  font-size: 12px;
  font-weight: 700;
  text-decoration: none;
  transition: transform 160ms ease-out, background-color 160ms ease-out, color 160ms ease-out;
}

.button:active {
  transform: scale(0.96);
}

.button-primary {
  background: var(--accent);
  color: var(--canvas);
}

.button-primary:hover {
  background: oklch(88% 0.16 116);
}

.text-link {
  display: inline-flex;
  min-height: 40px;
  align-items: center;
  gap: 10px;
  color: var(--paper);
  font-family: "SF Mono", "Cascadia Mono", ui-monospace, monospace;
  font-size: 12px;
  text-underline-offset: 5px;
  transition: color 160ms ease-out;
}

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

.scope-line {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 0;
  color: var(--quiet);
  font-size: 10px;
  letter-spacing: 0.05em;
}

.terminal-panel {
  overflow: hidden;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-medium);
  box-shadow: 0 24px 56px oklch(0% 0 0 / 0.24);
  transform: rotate(1.3deg);
}

.terminal-topbar,
.terminal-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 48px;
  padding-inline: 18px;
  border-bottom: 1px solid var(--line);
  color: var(--quiet);
  font-size: 10px;
  letter-spacing: 0.04em;
}

.window-dots {
  display: flex;
  gap: 6px;
}

.window-dots span {
  width: 7px;
  height: 7px;
  border: 1px solid var(--quiet);
  border-radius: 50%;
}

.window-dots span:first-child {
  border-color: var(--warm);
}

.terminal-file {
  margin-left: auto;
  margin-right: auto;
  color: var(--muted);
}

.terminal-version {
  color: var(--quiet);
}

.terminal-body {
  min-height: 340px;
  padding: 28px 24px 30px;
  background: oklch(11% 0.018 90);
}

.terminal-line,
.terminal-output {
  display: grid;
  grid-template-columns: 26px 16px auto;
  align-items: baseline;
  min-height: 30px;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.55;
}

.terminal-line span:last-child {
  white-space: nowrap;
}

.line-number {
  color: var(--quiet);
  font-size: 10px;
}

.prompt {
  color: var(--warm);
}

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

.accent {
  color: var(--accent);
}

.active-line {
  margin-inline: -12px;
  padding: 5px 12px;
  background: oklch(83% 0.19 116 / 0.08);
  border-left: 1px solid var(--accent);
}

.terminal-divider {
  height: 1px;
  margin: 24px 0 20px;
  background: var(--line);
}

.terminal-output {
  grid-template-columns: 62px auto;
  color: var(--quiet);
}

.output-label {
  color: var(--warm);
}

.terminal-footer {
  border-top: 1px solid var(--line);
  border-bottom: 0;
  color: var(--accent);
}

.footer-target {
  color: var(--quiet);
}

.flow-section {
  padding-block: 40px 102px;
  border-top: 1px solid var(--line);
}

.section-heading {
  display: grid;
  grid-template-columns: minmax(140px, 0.34fr) 1fr;
  gap: 26px;
  align-items: baseline;
  margin-bottom: 44px;
}

.section-heading .section-index,
.boundary-label .section-index {
  margin: 0;
  color: var(--quiet);
}

h2 {
  max-width: 670px;
  margin-bottom: 0;
  font-family: "SF Mono", "Cascadia Mono", ui-monospace, monospace;
  font-size: clamp(24px, 3.3vw, 42px);
  font-weight: 500;
  letter-spacing: -0.04em;
  line-height: 1.05;
}

.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
}

.steps li {
  min-height: 190px;
  padding: 0 28px 0 0;
  border-top: 1px solid var(--line);
}

.steps li + li {
  padding-left: 28px;
  border-left: 1px solid var(--line);
}

.step-number {
  display: block;
  margin: 18px 0 34px;
  color: var(--accent);
  font-family: "SF Mono", "Cascadia Mono", ui-monospace, monospace;
  font-size: 11px;
}

h3 {
  margin-bottom: 10px;
  color: var(--paper);
  font-size: 18px;
  font-weight: 600;
  letter-spacing: -0.02em;
}

.steps p,
.boundary-copy p {
  max-width: 300px;
  margin-bottom: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.7;
  text-wrap: pretty;
}

.steps code,
.boundary-copy code {
  color: var(--accent);
}

.boundary-section {
  display: grid;
  grid-template-columns: 0.9fr 1.2fr 0.9fr;
  gap: 32px;
  align-items: start;
  padding-block: 34px 92px;
  border-top: 1px solid var(--line);
}

.boundary-label h2 {
  margin-top: 20px;
  font-size: clamp(22px, 3vw, 34px);
}

.boundary-copy .text-link {
  margin-top: 22px;
}

.limits {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  margin: 0;
}

.limits div {
  padding-left: 16px;
  border-left: 1px solid var(--line);
}

.limits dt {
  margin-bottom: 8px;
  color: var(--accent);
  font-size: 19px;
  letter-spacing: -0.04em;
}

.limits dd {
  margin: 0;
  color: var(--quiet);
  font-family: "SF Mono", "Cascadia Mono", ui-monospace, monospace;
  font-size: 10px;
  line-height: 1.4;
}

.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 78px;
  border-top: 1px solid var(--line);
  color: var(--quiet);
  font-size: 10px;
  letter-spacing: 0.04em;
}

.site-footer nav {
  display: flex;
  gap: 22px;
}

.site-footer a {
  color: var(--muted);
  text-underline-offset: 4px;
}

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

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

@media (max-width: 800px) {
  .hero {
    grid-template-columns: 1fr;
    gap: 54px;
    min-height: auto;
    padding-block: 70px 86px;
  }

  .terminal-panel {
    max-width: 620px;
    margin-inline: auto;
    transform: rotate(0.6deg);
  }

  .boundary-section {
    grid-template-columns: 1fr 1fr;
  }

  .limits {
    grid-column: 1 / -1;
    max-width: 430px;
  }
}

@media (max-width: 560px) {
  .site-header,
  .site-footer,
  main {
    width: min(calc(100% - 32px), var(--content-width));
  }

  .site-header {
    min-height: 74px;
  }

  .header-meta {
    gap: 6px;
    font-size: 8px;
  }

  .header-meta span:last-child {
    display: none;
  }

  .hero {
    padding-block: 58px 74px;
  }

  h1 {
    font-size: clamp(34px, 11vw, 50px);
    line-height: 1.02;
  }

  .lede {
    font-size: 15px;
  }

  .hero-actions {
    align-items: flex-start;
    flex-direction: column;
    gap: 10px;
  }

  .terminal-body {
    min-height: 300px;
    padding: 22px 16px 26px;
  }

  .terminal-line,
  .terminal-output {
    font-size: 10px;
  }

  .terminal-line span:last-child {
    overflow-wrap: anywhere;
    white-space: normal;
  }

  .section-heading,
  .boundary-section {
    grid-template-columns: 1fr;
    gap: 22px;
  }

  .section-heading {
    margin-bottom: 36px;
  }

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

  .steps li,
  .steps li + li {
    min-height: 0;
    padding: 0 0 26px;
    border-left: 0;
    border-top: 1px solid var(--line);
  }

  .steps li + li {
    padding-left: 0;
    padding-top: 4px;
  }

  .step-number {
    margin-bottom: 22px;
  }

  .limits {
    grid-column: auto;
    width: 100%;
  }

  .site-footer {
    align-items: flex-start;
    flex-direction: column;
    justify-content: center;
    gap: 12px;
    padding-block: 20px;
  }
}

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

  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}