:root {
  --ink: #1c1917;
  --muted: #57534e;
  --line: #e7e5e4;
  --paper: #fafaf9;
  --sidebar: #1c1917;
  --sidebar-ink: #fafaf9;
  --link: #9a3412;
  --code: #f5f5f4;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font: 17px/1.6 "Iowan Old Style", Palatino, Georgia, serif;
}

a { color: var(--link); }

.topbar {
  display: flex;
  align-items: baseline;
  gap: 0.75rem;
  padding: 0.85rem 1.25rem;
  background: #fff;
  border-bottom: 1px solid var(--line);
}

.brand {
  color: var(--ink);
  font-weight: 700;
  text-decoration: none;
  letter-spacing: 0.02em;
}

.brand-sub {
  color: var(--muted);
  font-size: 0.85rem;
}

.layout {
  display: flex;
  align-items: flex-start;
  min-height: calc(100vh - 52px);
}

.sidebar {
  width: 16.5rem;
  flex: none;
  position: sticky;
  top: 0;
  max-height: 100vh;
  overflow: auto;
  padding: 1.25rem 1rem 2rem;
  background: var(--sidebar);
  color: var(--sidebar-ink);
}

.sidebar a {
  color: #fed7aa;
  text-decoration: none;
}

.sidebar a[aria-current="page"] {
  color: #fff;
  font-weight: 700;
}

.sidebar ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.sidebar li { margin: 0.4rem 0; }

.content {
  flex: 1;
  min-width: 0;
  padding: 2rem 2.5rem 4rem;
  max-width: 48rem;
}

h1, h2, h3 {
  line-height: 1.25;
  font-weight: 650;
}

h1 { margin-top: 0; font-size: 2rem; }

h2 {
  margin-top: 2.2rem;
  padding-top: 0.4rem;
  border-top: 1px solid var(--line);
}

table {
  width: 100%;
  border-collapse: collapse;
  background: #fff;
  font-size: 0.95rem;
}

th, td {
  border: 1px solid var(--line);
  padding: 0.45rem 0.65rem;
  text-align: left;
  vertical-align: top;
}

th { background: #f5f5f4; }

code, pre {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.88em;
}

code {
  background: var(--code);
  padding: 0.1em 0.3em;
}

pre {
  background: #fff;
  border: 1px solid var(--line);
  padding: 0.9rem 1rem;
  overflow: auto;
}

pre code { background: transparent; padding: 0; }

img {
  max-width: 100%;
  height: auto;
  border: 1px solid var(--line);
  background: #fff;
}

blockquote {
  margin: 1.2rem 0;
  padding-left: 1rem;
  border-left: 3px solid #d6d3d1;
  color: var(--muted);
}

@media (max-width: 800px) {
  .layout { display: block; }
  .sidebar {
    position: static;
    width: auto;
    max-height: none;
  }
}