:root {
  color-scheme: light;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: #1f2933;
  background: #f7f8fb;
  --blue: #0a7cff;
  --border: #e5e7eb;
  --muted: #667085;
}

* { box-sizing: border-box; }

body { margin: 0; }

/* Layout: sticky sidebar TOC + content */
.wrap {
  max-width: 1080px;
  margin: 0 auto;
  padding: 32px 20px 80px;
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 32px;
  align-items: start;
}

.toc {
  position: sticky;
  top: 24px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 18px 18px 22px;
  box-shadow: 0 18px 48px rgba(15, 23, 42, 0.06);
}
.toc h2 {
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--muted);
  margin: 0 0 10px;
}
.toc a {
  display: block;
  padding: 6px 8px;
  border-radius: 6px;
  color: #1f2933;
  text-decoration: none;
  font-size: 14px;
  line-height: 1.4;
}
.toc a:hover { background: #f0f5ff; color: var(--blue); }
.toc a.active { background: #eef4ff; color: var(--blue); font-weight: 600; }

main {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 40px 44px;
  box-shadow: 0 18px 48px rgba(15, 23, 42, 0.08);
  min-width: 0;
}

h1 { margin: 0 0 6px; font-size: 32px; line-height: 1.15; color: #111827; }
.lede { color: var(--muted); font-size: 16px; margin: 0 0 8px; }
.updated { color: var(--muted); font-size: 13px; margin: 0 0 8px; }

section { scroll-margin-top: 24px; padding-top: 8px; }
section h2 { font-size: 16px; color: #111827; margin: 20px 0 8px; }

p, li { font-size: 15.5px; line-height: 1.65; }
p { margin: 0 0 14px; }
ul, ol { margin: 0 0 14px; padding-left: 22px; }
li { margin: 0 0 6px; }
a { color: var(--blue); }
code {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  background: #f3f4f6;
  border-radius: 4px;
  padding: 1px 5px;
  font-size: 0.92em;
}
.note {
  background: #f0f5ff;
  border: 1px solid #d6e4ff;
  border-radius: 8px;
  padding: 12px 14px;
  font-size: 14.5px;
  margin: 0 0 14px;
}
.modules { list-style: none; padding: 0; }
.modules li { margin: 0 0 8px; }
.crumb { font-size: 14px; margin: 0 0 20px; }
.crumb a { text-decoration: none; }
.env-badge {
  display: inline-block;
  vertical-align: middle;
  margin-left: 10px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: #fff;
  background: #d97706;
  padding: 3px 9px;
  border-radius: 999px;
}
/* The hidden attribute must win over the display above, or the badge shows
   on every host (including production). */
.env-badge[hidden] { display: none; }

@media (max-width: 860px) {
  .wrap { grid-template-columns: 1fr; padding: 20px 14px 60px; }
  .toc { position: static; }
  main { padding: 28px 22px; }
  h1 { font-size: 27px; }
}