:root {
  --bg: #ffffff;
  --bg-soft: #f6f8f7;
  --ink: #1c2321;
  --ink-soft: #55635e;
  --accent: #0e7a5f;
  --accent-soft: #e3f2ec;
  --border: #dde4e1;
  --code-bg: #f2f5f4;
  --code-ink: #24312c;
  --warn-bg: #fdf6e3;
  --warn-border: #e8d59a;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #141817;
    --bg-soft: #1b201f;
    --ink: #e6ebe9;
    --ink-soft: #9fb0aa;
    --accent: #4cc9a4;
    --accent-soft: #1e332c;
    --border: #2c3532;
    --code-bg: #1d2422;
    --code-ink: #d8e2de;
    --warn-bg: #2a2415;
    --warn-border: #5a4b1f;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--ink);
  line-height: 1.65;
  font-size: 16px;
}
main {
  max-width: 720px;
  margin: 0 auto;
  padding: 4rem 1.5rem 3rem;
}
.topbar {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.25rem;
}
.brand {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--accent);
}
.lang {
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  color: var(--ink-soft);
}
.lang a { color: var(--ink-soft); text-decoration: none; }
.lang a:hover { color: var(--accent); }
.lang [aria-current="true"] { color: var(--ink); font-weight: 700; }
h1 {
  font-size: 2.1rem;
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin: 0 0 1rem;
}
.lede { font-size: 1.1rem; color: var(--ink-soft); margin: 0 0 1.5rem; }
.disclaimer {
  background: var(--warn-bg);
  border: 1px solid var(--warn-border);
  border-radius: 8px;
  padding: 0.85rem 1rem;
  font-size: 0.9rem;
  margin: 0 0 2.5rem;
}
h2 {
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--ink-soft);
  margin: 2.75rem 0 0.9rem;
}
ul { padding-left: 1.1rem; margin: 0; }
li { margin-bottom: 0.45rem; }
a { color: var(--accent); }
code, pre {
  font-family: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
  font-size: 0.85rem;
}
pre {
  background: var(--code-bg);
  color: var(--code-ink);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1rem;
  overflow-x: auto;
  line-height: 1.55;
}
.cta {
  display: inline-block;
  background: var(--accent);
  color: #fff;
  text-decoration: none;
  font-weight: 600;
  padding: 0.75rem 1.5rem;
  border-radius: 8px;
  margin-top: 0.5rem;
}
.cta:hover { opacity: 0.9; }
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 0.4rem 1.5rem;
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1rem 1.25rem;
  font-size: 0.92rem;
}
.grid div { color: var(--ink-soft); }
.grid strong {
  color: var(--ink);
  display: block;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
footer {
  margin-top: 4rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--border);
  font-size: 0.82rem;
  color: var(--ink-soft);
}