/* The user guide's pages (tools/build-site.py). Same world as the landing
   page: dark, the logo's colours, Inter self-hosted. */
@font-face {
  font-family: "Inter";
  src: url("../fonts/InterVariable.woff2") format("woff2");
  font-weight: 100 900;
  font-display: swap;
}
:root {
  color-scheme: dark;
  --ground: #121318;
  --panel: #1a1b21;
  --panel-2: #20222a;
  --line: #2c2f3a;
  --text: #e8eaf4;
  --muted: #a3a7ba;
  --faint: #767a8e;
  --accent: #2b7be0;
  --accent-hi: #5c9cf0;
  --radius: 10px;
  --sans: "Inter", ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, "SF Mono", "Cascadia Mono", "JetBrains Mono", Menlo, Consolas, monospace;
}
* { box-sizing: border-box; }
html { background: var(--ground); }
body {
  margin: 0;
  background: var(--ground);
  color: var(--text);
  font: 400 1rem/1.65 var(--sans);
  font-feature-settings: "cv11", "ss01";
  -webkit-font-smoothing: antialiased;
}
a { color: var(--accent-hi); text-underline-offset: 0.18em; }
a:hover { color: var(--text); }
:focus-visible { outline: 2px solid var(--accent-hi); outline-offset: 3px; border-radius: 4px; }
img { max-width: 100%; height: auto; }

/* ---- top bar ---------------------------------------------------------- */
.topbar {
  position: sticky;
  top: env(safe-area-inset-top, 0px);
  z-index: 10;
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.7rem max(1.25rem, env(safe-area-inset-left, 0px));
  background: rgba(18, 19, 24, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.topbar a { text-decoration: none; color: var(--text); }
.brand { display: flex; align-items: center; gap: 0.55rem; font-weight: 700; letter-spacing: -0.01em; }
.brand img { border-radius: 7px; }
.section { color: var(--muted) !important; padding-left: 1rem; border-left: 1px solid var(--line); }
.topbar nav { margin-left: auto; display: flex; gap: 1.25rem; font-size: 0.925rem; }
.topbar nav a { color: var(--muted); }
.topbar nav a:hover { color: var(--text); }

/* ---- layout ----------------------------------------------------------- */
.layout {
  display: grid;
  grid-template-columns: 15rem minmax(0, 1fr);
  gap: 3rem;
  max-width: 72rem;
  margin: 0 auto;
  padding: 2.5rem max(1.25rem, env(safe-area-inset-left, 0px)) 0;
}
.sidebar { position: sticky; top: 5rem; align-self: start; }
.side-label {
  margin: 0 0 0.6rem;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--faint);
}
.sidebar ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 0.15rem; }
.sidebar a {
  display: block;
  padding: 0.4rem 0.7rem;
  border-radius: 7px;
  color: var(--muted);
  text-decoration: none;
  font-size: 0.95rem;
}
.sidebar a:hover { color: var(--text); background: var(--panel); }
.sidebar a[aria-current="page"] { color: var(--text); background: var(--panel-2); box-shadow: inset 2px 0 0 var(--accent); }

/* ---- content ---------------------------------------------------------- */
.content { max-width: 46rem; min-width: 0; padding-bottom: 3rem; }
.content h1 {
  margin: 0 0 1rem;
  font-size: clamp(2rem, 4.5vw, 2.75rem);
  line-height: 1.1;
  font-weight: 800;
  letter-spacing: -0.035em;
  text-wrap: balance;
}
.content h2 {
  margin: 2.75rem 0 0.9rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--line);
  font-size: 1.5rem;
  line-height: 1.2;
  font-weight: 700;
  letter-spacing: -0.02em;
}
.content h3 { margin: 1.9rem 0 0.5rem; font-size: 1.15rem; font-weight: 650; }
.content h4 { margin: 1.4rem 0 0.4rem; font-size: 1rem; font-weight: 650; color: var(--muted); }
.content p, .content li { color: #d3d6e3; }
.content strong { color: var(--text); font-weight: 600; }
.content ul, .content ol { padding-left: 1.35rem; }
.content li { margin: 0.3rem 0; }
.content .lede { font-size: 1.15rem; color: var(--muted); max-width: 40rem; }
.headerlink { margin-left: 0.4rem; color: var(--faint); text-decoration: none; opacity: 0; font-weight: 400; }
h2:hover .headerlink, h3:hover .headerlink { opacity: 1; }

.content code {
  font: 0.88em var(--mono);
  background: var(--panel-2);
  border: 1px solid var(--line);
  padding: 0.08em 0.35em;
  border-radius: 5px;
  color: var(--text);
}
.content pre {
  overflow-x: auto;
  padding: 1rem 1.1rem;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  line-height: 1.5;
}
.content pre code { background: none; border: 0; padding: 0; font-size: 0.875rem; }

.content blockquote {
  margin: 1.25rem 0;
  padding: 0.85rem 1.1rem;
  border: 1px solid #3b4a66;
  border-radius: var(--radius);
  background: #182032;
}
.content blockquote p { margin: 0.35rem 0; color: #cfd8ec; }

.content table {
  display: block;
  overflow-x: auto;
  width: 100%;
  border-collapse: collapse;
  margin: 1.25rem 0;
  font-size: 0.93rem;
}
.content th, .content td { padding: 0.6rem 0.8rem; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
.content th { font-size: 0.75rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted); font-weight: 600; background: var(--panel); }
.content td { color: #d3d6e3; }

.content img {
  display: block;
  margin: 1.25rem 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

/* docs home */
.content .cards { list-style: none; padding: 0; margin: 2rem 0 0; display: grid; grid-template-columns: repeat(auto-fit, minmax(16rem, 1fr)); gap: 1rem; }
.cards a {
  display: grid;
  gap: 0.35rem;
  height: 100%;
  padding: 1.1rem 1.2rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
  text-decoration: none;
  transition: border-color 0.15s ease;
}
.cards a:hover { border-color: var(--accent); }
.cards strong { color: var(--text); font-size: 1.05rem; }
.cards span { color: var(--muted); font-size: 0.92rem; line-height: 1.5; }

.pager { display: flex; justify-content: space-between; gap: 1rem; margin-top: 3.5rem; }
.pager a {
  display: grid;
  gap: 0.2rem;
  padding: 0.8rem 1rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  text-decoration: none;
  color: var(--text);
  min-width: 12rem;
}
.pager a:hover { border-color: var(--accent); }
.pager span { font-size: 0.75rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--faint); }
.pager .next { text-align: right; margin-left: auto; }

.foot {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.5rem;
  justify-content: space-between;
  max-width: 72rem;
  margin: 2rem auto 0;
  padding: 1.75rem max(1.25rem, env(safe-area-inset-left, 0px)) calc(2rem + env(safe-area-inset-bottom, 0px));
  border-top: 1px solid var(--line);
  color: var(--faint);
  font-size: 0.85rem;
}
.foot a { color: var(--muted); }

@media (max-width: 52rem) {
  .layout { grid-template-columns: minmax(0, 1fr); gap: 1.5rem; padding-top: 1.5rem; }
  .sidebar { position: static; }
  .sidebar ul { display: flex; flex-wrap: wrap; gap: 0.35rem; }
  .sidebar a { border: 1px solid var(--line); }
  .topbar nav { gap: 0.9rem; }
  .pager { flex-direction: column; }
  .pager a { min-width: 0; }
}
@media (prefers-reduced-motion: reduce) { * { transition: none !important; } }