:root {
  --paper: #f0eee5;
  --card: #fbf9ee;
  --ink: #111;
  --muted: #66625c;
  --rule: #111;
  --green: #0b8f6f;
  --blue: #5da5d8;
  --mono:
    ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas,
    "Liberation Mono", monospace;
  --sans:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont,
    "Segoe UI", sans-serif;
  --sidebar-w: 220px;
}

* { box-sizing: border-box; }

html {
  background: var(--paper);
  color: var(--ink);
}

body {
  margin: 0;
  background: var(--paper);
  font-family: var(--mono);
  font-size: 12px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: geometricPrecision;
}

/* ---------- layout ---------- */

.layout {
  display: flex;
  min-height: 100vh;
}

/* ---------- sidebar ---------- */

.sidebar {
  position: sticky;
  top: 0;
  align-self: flex-start;
  width: var(--sidebar-w);
  min-width: var(--sidebar-w);
  height: 100vh;
  padding: 26px 0 20px;
  border-right: 1px solid var(--rule);
  display: flex;
  flex-direction: column;
  overflow-y: auto;
}

.sidebar-title {
  display: block;
  padding: 0 20px 14px;
  font-weight: 700;
  font-size: 13px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--green);
  text-decoration: none;
  border-bottom: 1px solid var(--rule);
}

.sidebar ul {
  list-style: none;
  margin: 0;
  padding: 10px 0;
  flex: 1;
}

.sidebar li {
  margin: 0;
}

.sidebar li a {
  display: block;
  padding: 5px 20px;
  color: var(--ink);
  text-decoration: none;
  font-size: 11.5px;
  letter-spacing: 0.04em;
}

.sidebar li a:hover {
  background: rgba(11, 143, 111, 0.08);
}

.sidebar li.active a {
  font-weight: 700;
  color: var(--green);
  border-left: 3px solid var(--green);
  padding-left: 17px;
}

.sidebar-footer {
  border-top: 1px solid var(--rule);
  padding: 12px 20px 0;
  display: flex;
  gap: 14px;
}

.sidebar-footer a {
  color: var(--muted);
  text-decoration: none;
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.sidebar-footer a:hover {
  color: var(--ink);
}

/* ---------- content ---------- */

.content {
  flex: 1;
  min-width: 0;
  max-width: 760px;
  padding: 26px 40px 44px;
}

.doc-header .topline {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 24px;
  border-bottom: 3px double var(--rule);
  padding-bottom: 4px;
  font-weight: 700;
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
}

h1 {
  margin: 18px 0 8px;
  font-family: var(--sans);
  font-size: clamp(28px, 4vw, 36px);
  line-height: 1;
  letter-spacing: -0.035em;
  font-weight: 750;
}

h2 {
  margin: 32px 0 8px;
  font-family: var(--sans);
  font-size: 18px;
  font-weight: 700;
  letter-spacing: -0.02em;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--rule);
}

h3 {
  margin: 20px 0 6px;
  font-family: var(--sans);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 11px;
}

p {
  margin: 8px 0 12px;
  max-width: 620px;
}

code {
  font-family: var(--mono);
  font-size: inherit;
  background: rgba(17, 17, 13, 0.06);
  padding: 1px 4px;
  border-radius: 2px;
}

a {
  color: #287d67;
  text-decoration-color: rgba(40, 125, 103, 0.35);
  text-underline-offset: 0.16em;
}

/* ---------- terminal blocks ---------- */

.terminal {
  border: 1px solid var(--rule);
  background: var(--card);
  margin: 10px 0 16px;
}

.terminal.dark {
  background: #11110d;
  color: #f0eee5;
  border-color: #11110d;
}

.term-header {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  border-bottom: 1px solid currentColor;
  padding: 7px 12px;
  font-weight: 700;
  line-height: 1.2;
  font-size: 10.5px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.terminal.dark .term-header {
  border-bottom-color: rgba(240, 238, 229, 0.2);
}

.term-body {
  padding: 12px;
}

.line {
  min-height: 19px;
  white-space: pre-wrap;
  word-break: break-all;
}

.prompt {
  color: #7bd88f;
  font-weight: 700;
  margin-right: 8px;
}

.terminal:not(.dark) .prompt {
  color: var(--green);
}

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

.terminal.dark .dim {
  color: #8a8880;
}

.ok {
  color: #7bd88f;
}

.id {
  font-weight: 700;
  text-decoration: underline;
}

.terminal.dark .id,
.terminal.dark .ref {
  color: var(--blue);
}

/* ---------- tables ---------- */

table {
  border-collapse: collapse;
  margin: 10px 0 16px;
  font-size: 12px;
  width: 100%;
}

th {
  text-align: left;
  font-weight: 700;
  padding: 6px 10px;
  border-bottom: 2px solid var(--rule);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 10px;
  color: var(--muted);
}

td {
  padding: 5px 10px;
  border-bottom: 1px dashed #b9b5aa;
}

td code {
  background: none;
  padding: 0;
}

/* ---------- lists ---------- */

ul, ol {
  margin: 8px 0 12px;
  padding-left: 22px;
}

li {
  margin: 3px 0;
}

/* ---------- footer ---------- */

.doc-footer {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  border-top: 1px solid var(--rule);
  padding-top: 14px;
  margin-top: 48px;
  color: var(--muted);
}

.doc-footer a {
  color: var(--muted);
}

/* ---------- responsive ---------- */

@media (max-width: 820px) {
  .sidebar {
    position: fixed;
    left: -260px;
    z-index: 100;
    background: var(--paper);
    transition: left 0.2s;
    width: 260px;
    min-width: 260px;
  }

  .sidebar.open {
    left: 0;
    box-shadow: 4px 0 24px rgba(0,0,0,0.12);
  }

  .content {
    padding: 22px 16px 34px;
  }

  .menu-toggle {
    display: block;
  }

  .doc-footer {
    flex-direction: column;
  }
}

@media (min-width: 821px) {
  .menu-toggle {
    display: none;
  }
}

.menu-toggle {
  position: fixed;
  top: 10px;
  left: 10px;
  z-index: 101;
  background: var(--paper);
  border: 1px solid var(--rule);
  padding: 4px 8px;
  font-family: var(--mono);
  font-size: 12px;
  cursor: pointer;
  letter-spacing: 0.12em;
}