/* Documentação do AutomataLab — os mesmos tokens da ferramenta. */

:root {
  color-scheme: light dark;
  --bg: #f6f7f9;
  --panel: #ffffff;
  --border: #d8dce3;
  --ink: #1c2230;
  --muted: #5c6676;
  --accent: #2563eb;
  --accent-soft: #dbeafe;
  --warn: #b45309;
  --code-bg: #eef1f5;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #14181f;
    --panel: #1b212b;
    --border: #2c3542;
    --ink: #e6eaf0;
    --muted: #9aa5b4;
    --accent: #60a5fa;
    --accent-soft: #1e3a5f;
    --warn: #fbbf24;
    --code-bg: #10141a;
  }
}

:root[data-theme="dark"] {
  --bg: #14181f;
  --panel: #1b212b;
  --border: #2c3542;
  --ink: #e6eaf0;
  --muted: #9aa5b4;
  --accent: #60a5fa;
  --accent-soft: #1e3a5f;
  --warn: #fbbf24;
  --code-bg: #10141a;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  display: grid;
  grid-template-columns: 250px 1fr;
  min-height: 100vh;
  background: var(--bg);
  color: var(--ink);
  font: 16px/1.6 system-ui, -apple-system, "Segoe UI", sans-serif;
}

/* ---------- barra lateral ---------- */

.sidebar {
  position: sticky;
  top: 0;
  height: 100vh;
  padding: 24px 20px;
  border-right: 1px solid var(--border);
  background: var(--panel);
  overflow-y: auto;
}

.brand {
  display: block;
  font-weight: 700;
  font-size: 17px;
  color: var(--ink);
  text-decoration: none;
  letter-spacing: 0.02em;
}

.brand-sub {
  margin: 2px 0 20px;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
}

.sidebar ol {
  list-style: none;
  margin: 0;
  padding: 0;
  counter-reset: cap;
}

.sidebar li { counter-increment: cap; }

.sidebar li a {
  display: block;
  padding: 6px 10px;
  border-radius: 6px;
  color: var(--ink);
  text-decoration: none;
  font-size: 14px;
}

.sidebar li a::before {
  content: counter(cap) ". ";
  color: var(--muted);
  font-variant-numeric: tabular-nums;
}

.sidebar li a:hover { background: var(--bg); }
.sidebar li a[aria-current="page"] { background: var(--accent-soft); font-weight: 600; }

.sidebar-foot { margin-top: 28px; font-size: 13px; }
.sidebar-foot a { color: var(--muted); }

/* ---------- conteúdo ---------- */

.content {
  max-width: 78ch;
  padding: 40px 48px 64px;
}

h1 { font-size: 30px; line-height: 1.2; margin: 0 0 6px; text-wrap: balance; }
.subtitle { margin: 0 0 28px; color: var(--muted); font-size: 17px; }
h2 { font-size: 22px; margin: 40px 0 12px; padding-top: 12px; border-top: 1px solid var(--border); }
h3 { font-size: 17px; margin: 26px 0 8px; }
h2:first-of-type { border-top: none; }

p, li { max-width: 70ch; }
a { color: var(--accent); }

code {
  font: 0.92em ui-monospace, "SF Mono", Menlo, monospace;
  background: var(--code-bg);
  padding: 1px 5px;
  border-radius: 4px;
}

pre {
  background: var(--code-bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px 16px;
  overflow-x: auto;
  line-height: 1.45;
}

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

table {
  border-collapse: collapse;
  width: 100%;
  margin: 14px 0 20px;
  font-size: 14.5px;
  display: block;
  overflow-x: auto;
}

th, td {
  border: 1px solid var(--border);
  padding: 7px 10px;
  text-align: left;
  vertical-align: top;
}

th { background: var(--panel); font-weight: 600; }
td code, th code { white-space: nowrap; }

figure { margin: 22px 0; }
figure img { max-width: 100%; border: 1px solid var(--border); border-radius: 8px; background: #fff; }
figcaption { margin-top: 8px; font-size: 14px; color: var(--muted); }

blockquote {
  margin: 18px 0;
  padding: 10px 16px;
  border-left: 3px solid var(--accent);
  background: var(--panel);
  border-radius: 0 6px 6px 0;
}

blockquote p { margin: 4px 0; }

.toc {
  margin: 0 0 32px;
  padding: 12px 16px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 14px;
}

.toc-title { margin: 0 0 6px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.06em; font-size: 12px; color: var(--muted); }
.toc ul { margin: 0; padding-left: 18px; }
.toc ul ul { display: none; }
.toc a { color: var(--ink); text-decoration: none; }
.toc a:hover { color: var(--accent); }

kbd {
  font: 0.85em ui-monospace, Menlo, monospace;
  border: 1px solid var(--border);
  border-bottom-width: 2px;
  border-radius: 4px;
  padding: 1px 6px;
  background: var(--panel);
}

.chapter-nav {
  display: flex;
  justify-content: space-between;
  margin-top: 56px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
  font-size: 15px;
}

.chapter-nav a { text-decoration: none; }

@media (max-width: 820px) {
  body { grid-template-columns: 1fr; }
  .sidebar { position: static; height: auto; border-right: none; border-bottom: 1px solid var(--border); }
  .content { padding: 24px 20px 48px; }
}

@media print {
  .sidebar, .chapter-nav, .toc { display: none; }
  body { display: block; background: #fff; color: #000; }
  .content { max-width: none; padding: 0; }
}