:root {
  color-scheme: light dark;
  --bg: #faf9f5;
  --fg: #111111;
  --muted: #64615b;
  --faint: #8d887f;
  --line: #d8d3c8;
  --soft-line: rgba(17, 17, 17, 0.08);
  --paper: #fffdf8;
  --code: #f1eee6;
  --invert: #111111;
  --invert-fg: #faf9f5;
  --focus: rgba(17, 17, 17, 0.22);
  --max: 1080px;
  font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans SC", "PingFang SC", sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #090909;
    --fg: #f4f1ea;
    --muted: #b5afa4;
    --faint: #81796e;
    --line: #302d29;
    --soft-line: rgba(244, 241, 234, 0.1);
    --paper: #0f0f0f;
    --code: #171717;
    --invert: #f4f1ea;
    --invert-fg: #090909;
    --focus: rgba(244, 241, 234, 0.22);
  }
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-height: 100vh;
  color: var(--fg);
  background:
    linear-gradient(var(--soft-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--soft-line) 1px, transparent 1px),
    var(--bg);
  background-size: 28px 28px;
  text-rendering: geometricPrecision;
}

a { color: inherit; text-decoration: none; }
code, pre { font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace; }
code { font-size: .92em; }

.container,
.nav {
  width: min(var(--max), calc(100% - 40px));
  margin-inline: auto;
}

.nav {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 20px;
  padding: 22px 0;
  border-bottom: 1px solid var(--line);
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  font-weight: 650;
  letter-spacing: -.02em;
}
.brand-mark {
  display: inline-grid;
  place-items: center;
  width: 28px;
  height: 28px;
  border: 1px solid var(--fg);
  font-weight: 700;
}
.nav nav {
  justify-self: end;
  display: flex;
  align-items: center;
  gap: 18px;
  color: var(--muted);
  font-size: 14px;
}
.nav nav a:hover { color: var(--fg); }
.lang-switch {
  display: inline-flex;
  border: 1px solid var(--line);
  background: var(--paper);
}
.lang-switch button {
  appearance: none;
  border: 0;
  border-right: 1px solid var(--line);
  padding: 6px 9px;
  color: var(--muted);
  background: transparent;
  cursor: pointer;
  font: inherit;
  font-size: 12px;
}
.lang-switch button:last-child { border-right: 0; }
.lang-switch button.active { color: var(--invert-fg); background: var(--invert); }

.hero {
  padding: clamp(76px, 12vw, 150px) 0 72px;
  border-bottom: 1px solid var(--line);
}
.meta {
  margin: 0 0 20px;
  color: var(--faint);
  font-size: 13px;
  letter-spacing: .03em;
}
h1, h2, h3, p { margin-top: 0; }
h1 {
  max-width: 920px;
  margin-bottom: 24px;
  font-size: clamp(56px, 10vw, 128px);
  line-height: .88;
  letter-spacing: -.085em;
  font-weight: 760;
}
h2 {
  margin-bottom: 14px;
  font-size: clamp(30px, 4.6vw, 56px);
  line-height: 1;
  letter-spacing: -.055em;
  font-weight: 720;
}
h3 { margin-bottom: 10px; font-size: 19px; letter-spacing: -.025em; }
p, li, dd {
  color: var(--muted);
  font-size: 16px;
  line-height: 1.74;
}
.lede {
  max-width: 680px;
  color: var(--muted);
  font-size: clamp(18px, 2.1vw, 22px);
  line-height: 1.65;
}
.lede.small { max-width: 720px; font-size: 18px; }
.actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 30px; }
.actions.center { justify-content: flex-start; }
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  padding: 0 14px;
  border: 1px solid var(--fg);
  color: var(--fg);
  background: transparent;
  font-size: 14px;
  font-weight: 560;
}
.button.primary { color: var(--invert-fg); background: var(--invert); }
.button:focus-visible,
.lang-switch button:focus-visible,
.copy:focus-visible { outline: 3px solid var(--focus); outline-offset: 2px; }

.section { padding: 64px 0; border-bottom: 1px solid var(--line); }
.note-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  padding-block: 0;
}
.note-grid article {
  min-height: 260px;
  padding: 34px 28px;
  border-right: 1px solid var(--line);
}
.note-grid article:last-child { border-right: 0; }
.note-grid span {
  display: block;
  margin-bottom: 52px;
  color: var(--faint);
  font: 500 13px/1 ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
}
.note-grid p { margin-bottom: 0; }

.install-strip {
  display: grid;
  grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr);
  gap: 54px;
  align-items: start;
}
.commands {
  position: relative;
  border-top: 1px solid var(--fg);
  border-bottom: 1px solid var(--line);
  padding: 18px 0 0;
}
.copy {
  position: absolute;
  top: 12px;
  right: 0;
  border: 1px solid var(--line);
  padding: 5px 9px;
  color: var(--fg);
  background: var(--paper);
  cursor: pointer;
  font: inherit;
  font-size: 12px;
}
pre {
  margin: 0;
  padding: 18px 0;
  overflow-x: auto;
  color: var(--fg);
  background: transparent;
  border-bottom: 1px solid var(--line);
  font-size: 14px;
  line-height: 1.7;
}
.commands p {
  margin: 14px 0 16px;
  color: var(--faint);
  font-size: 14px;
}

.ledger h2 { margin-bottom: 34px; }
.ledger dl, .compact-ledger {
  margin: 0;
  display: grid;
  border-top: 1px solid var(--fg);
}
.ledger dl div, .compact-ledger div {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 30px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
}
dt {
  color: var(--fg);
  font-weight: 650;
  letter-spacing: -.01em;
}
dd { margin: 0; }
.final { border-bottom: 0; padding-bottom: 100px; }
.final p { max-width: 540px; }

.footer {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding: 24px 0 38px;
  border-top: 1px solid var(--line);
  color: var(--faint);
  font-size: 14px;
}
.footer a { color: var(--fg); }

.doc-layout {
  display: grid;
  grid-template-columns: 210px minmax(0, 1fr);
  gap: 44px;
  padding: 52px 0 96px;
}
.toc {
  position: sticky;
  top: 18px;
  align-self: start;
  display: grid;
  gap: 10px;
  padding-top: 12px;
  border-top: 1px solid var(--fg);
}
.toc span {
  margin-bottom: 10px;
  color: var(--faint);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: .08em;
}
.toc a { color: var(--muted); font-size: 14px; }
.toc a:hover { color: var(--fg); }
.doc-paper {
  max-width: 780px;
}
.doc-paper h1 {
  margin-bottom: 20px;
  font-size: clamp(44px, 7vw, 84px);
}
.doc-paper h2 {
  margin-top: 54px;
  padding-top: 18px;
  border-top: 1px solid var(--fg);
  font-size: 30px;
  letter-spacing: -.035em;
}
.doc-paper h3 { margin-top: 30px; }
.doc-paper ul { padding-left: 20px; }
.doc-paper pre {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.doc-paper .compact-ledger { margin-top: 18px; }

@media (max-width: 860px) {
  .nav { grid-template-columns: 1fr auto; }
  .nav nav { grid-column: 1 / -1; justify-self: start; flex-wrap: wrap; }
  .hero { padding-top: 72px; }
  .note-grid, .install-strip, .doc-layout { grid-template-columns: 1fr; }
  .note-grid article { border-right: 0; border-bottom: 1px solid var(--line); }
  .note-grid article:last-child { border-bottom: 0; }
  .toc { position: static; }
}

@media (max-width: 560px) {
  .container, .nav { width: min(100% - 28px, var(--max)); }
  h1 { font-size: 54px; }
  h2 { font-size: 34px; }
  .ledger dl div, .compact-ledger div { grid-template-columns: 1fr; gap: 6px; }
  .footer { flex-direction: column; }
}