:root {
  --bg: #0b0f0e;
  --bg-elev: #121816;
  --ink: #e8f0ec;
  --muted: #8a9a93;
  --line: rgba(232, 240, 236, 0.1);
  --accent: #3dba8c;
  --accent-dim: rgba(61, 186, 140, 0.14);
  --font-display: "Syne", system-ui, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, monospace;
  --max: 1080px;
  --prose: 46rem;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 15px;
  line-height: 1.6;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; text-underline-offset: 3px; }

.shell {
  width: min(100% - 2rem, var(--max));
  margin: 0 auto;
  display: grid;
  gap: 2rem;
  padding: 1.25rem 0 3rem;
}
@media (min-width: 900px) {
  .shell {
    grid-template-columns: 15.5rem 1fr;
    gap: 2.75rem;
    padding-top: 1.5rem;
  }
}

.top {
  grid-column: 1 / -1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--line);
}
.logo {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.3rem;
  letter-spacing: -0.04em;
  color: var(--ink);
  text-decoration: none;
}
.logo:hover { text-decoration: none; color: var(--ink); }
.logo em { font-style: normal; color: var(--accent); }
.top-links {
  display: flex;
  gap: 1.1rem;
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.top-links a { color: var(--muted); text-decoration: none; }
.top-links a:hover { color: var(--ink); }

.side nav {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  position: sticky;
  top: 1rem;
  max-height: calc(100vh - 2rem);
  overflow: auto;
  padding-right: 0.35rem;
}
.side a {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.78rem;
  padding: 0.28rem 0.4rem;
  border-radius: 4px;
}
.side a:hover {
  color: var(--ink);
  text-decoration: none;
  background: rgba(232, 240, 236, 0.04);
}
.side a.active {
  color: var(--ink);
  background: var(--accent-dim);
  text-decoration: none;
}
.side .group {
  margin-top: 0.95rem;
  margin-bottom: 0.25rem;
  padding-left: 0.4rem;
  font-size: 0.62rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(138, 154, 147, 0.75);
}
.side .group:first-child { margin-top: 0; }
.side .submenu {
  display: flex;
  flex-direction: column;
  gap: 0.08rem;
  margin: 0.15rem 0 0.35rem;
  padding: 0.25rem 0 0.25rem 0.55rem;
  border-left: 1px solid var(--line);
}
.side .submenu a.sub {
  font-size: 0.72rem;
  padding: 0.2rem 0.45rem;
  color: rgba(138, 154, 147, 0.9);
}
.side .submenu a.sub code {
  font-family: var(--font-mono);
  font-size: inherit;
  color: inherit;
  background: none;
  padding: 0;
}
.side .submenu a.sub:hover,
.side .submenu a.sub.active {
  color: var(--accent);
  background: var(--accent-dim);
}
.side .submenu a.sub.active code { color: var(--accent); }

.prose { max-width: var(--prose); }
.prose h1 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.8rem, 3.5vw, 2.35rem);
  letter-spacing: -0.04em;
  line-height: 1.1;
  margin: 0 0 0.85rem;
}
.prose h2 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: -0.02em;
  margin: 2.25rem 0 0.7rem;
  padding-top: 0.5rem;
  border-top: 1px solid var(--line);
  color: var(--accent);
}
.prose h3 {
  font-size: 0.92rem;
  font-weight: 600;
  margin: 1.5rem 0 0.45rem;
  color: var(--accent);
}
.prose p, .prose li { color: var(--muted); }
.prose strong { color: var(--ink); font-weight: 600; }
.prose ul, .prose ol { padding-left: 1.2rem; }
.prose li { margin: 0.35rem 0; }
.prose code {
  font-family: var(--font-mono);
  font-size: 0.86em;
  color: var(--ink);
  background: var(--accent-dim);
  padding: 0.1em 0.35em;
}
.prose pre {
  background: var(--bg-elev);
  border: 1px solid var(--line);
  padding: 0.95rem 1rem;
  overflow-x: auto;
  font-size: 0.8rem;
  line-height: 1.55;
  color: var(--ink);
}
.prose pre code { background: none; padding: 0; color: inherit; }
.prose table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.8rem;
  margin: 1rem 0;
}
.prose th, .prose td {
  border-bottom: 1px solid var(--line);
  text-align: left;
  padding: 0.55rem 0.45rem;
  vertical-align: top;
}
.prose th { color: var(--ink); font-weight: 600; }
.prose td { color: var(--muted); }
.prose td code { white-space: nowrap; }
.prose .lead {
  font-size: 1rem;
  color: var(--muted);
  margin: 0 0 1.5rem;
}
.prose .note {
  border-left: 2px solid var(--accent);
  padding: 0.15rem 0 0.15rem 0.9rem;
  margin: 1.25rem 0;
}
.prose .cmd-kicker {
  margin: 0 0 0.55rem;
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
}
.prose .pill-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin: 0 0 1.35rem;
}
.prose .pill {
  font-size: 0.68rem;
  letter-spacing: 0.04em;
  color: var(--muted);
  border: 1px solid var(--line);
  padding: 0.22rem 0.5rem;
  border-radius: 999px;
}
.prose .related {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem 0.75rem;
  margin-top: 0.5rem;
}
.prose .related a {
  font-size: 0.8rem;
}
.prose .cmd-card-grid {
  display: grid;
  gap: 0.65rem;
  margin: 1.25rem 0 1.75rem;
}
@media (min-width: 720px) {
  .prose .cmd-card-grid { grid-template-columns: 1fr 1fr; }
}
.prose .cmd-card {
  display: block;
  border: 1px solid var(--line);
  background: var(--bg-elev);
  padding: 0.85rem 0.95rem;
  text-decoration: none;
  color: inherit;
  transition: border-color 0.15s ease, background 0.15s ease;
}
.prose .cmd-card:hover {
  border-color: rgba(61, 186, 140, 0.45);
  background: rgba(61, 186, 140, 0.06);
  text-decoration: none;
}
.prose .cmd-card strong {
  display: block;
  color: var(--accent);
  font-size: 0.82rem;
  margin-bottom: 0.3rem;
}
.prose .cmd-card span {
  display: block;
  color: var(--muted);
  font-size: 0.78rem;
  line-height: 1.45;
}
.prose .sample-caption {
  margin: 0 0 0.55rem;
  font-size: 0.8rem;
  color: var(--muted);
}
.prose pre.sample-out {
  border-color: rgba(61, 186, 140, 0.28);
  background: linear-gradient(180deg, rgba(61, 186, 140, 0.06), var(--bg-elev) 42%);
  box-shadow: inset 0 1px 0 rgba(61, 186, 140, 0.12);
  font-size: 0.72rem;
  line-height: 1.5;
}
.prose ul.interpret {
  padding-left: 1.15rem;
}
.prose ul.interpret li {
  margin: 0.55rem 0;
}

.site-foot {
  grid-column: 1 / -1;
  margin-top: 1rem;
  padding: 1.5rem 0 0.5rem;
  border-top: 1px solid var(--line);
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.25rem;
  justify-content: space-between;
  color: var(--muted);
  font-size: 0.72rem;
}
.site-foot a { color: var(--muted); }
.site-foot a:hover { color: var(--accent); }