:root {
  color-scheme: light dark;
  --bg: #fff;
  --surface: #fafafa;
  --border: #e0e0e0;
  --text: #1a1a1a;
  --muted: #6a6a6a;
  --error: #b22222;
  --warn:  #aa6600;
  --accent: #0969da;
  --accent-hover: #0860c4;
  --btn-bg: #0969da;
  --btn-bg-hover: #0860c4;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0d1117;
    --surface: #161b22;
    --border: #30363d;
    --text: #e6edf3;
    --muted: #8b949e;
    --error: #f85149;
    --warn:  #d29922;
    --accent: #58a6ff;
    --accent-hover: #79b8ff;
    --btn-bg: #1f6feb;
    --btn-bg-hover: #388bfd;
  }
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.55;
}

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

header.site, footer.site {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 24px;
  background: var(--bg);
}
header.site { border-bottom: 1px solid var(--border); }
footer.site {
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 12px;
  margin-top: 48px;
}

.brand { display: inline-flex; align-items: center; line-height: 0; }
.brand:hover { text-decoration: none; opacity: 0.85; }
.brand img { display: block; height: 28px; width: auto; }

header.site nav { display: flex; gap: 18px; font-size: 14px; }
header.site nav a { color: var(--text); }

main {
  max-width: 880px;
  margin: 0 auto;
  padding: 0 24px;
}

section { margin: 56px 0; }
section h2 { margin: 0 0 16px; font-size: 20px; }

.hero { margin-top: 48px; }
.hero h1 {
  margin: 0 0 12px;
  font-size: 36px;
  line-height: 1.2;
  font-weight: 700;
  letter-spacing: -0.01em;
}
.hero .lead {
  margin: 0 0 24px;
  font-size: 17px;
  color: var(--muted);
  max-width: 640px;
}
.cta { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 24px; }

.btn {
  display: inline-block;
  font: inherit;
  font-size: 14px;
  font-weight: 600;
  padding: 8px 16px;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--text);
  cursor: pointer;
}
.btn:hover { text-decoration: none; background: var(--surface); }
.btn.primary {
  background: var(--btn-bg);
  border-color: var(--btn-bg);
  color: #fff;
}
.btn.primary:hover { background: var(--btn-bg-hover); border-color: var(--btn-bg-hover); }

pre {
  margin: 0;
  padding: 12px 14px;
  font-family: var(--mono);
  font-size: 13px;
  line-height: 1.5;
  tab-size: 4;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  overflow-x: auto;
}
pre code { font: inherit; }
.install { display: inline-block; padding: 8px 12px; }

.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
}
.card {
  border: 1px solid var(--border);
  background: var(--bg);
  border-radius: 8px;
  padding: 16px;
}
.card h3 { margin: 0 0 6px; font-size: 15px; font-weight: 600; }
.card p { margin: 0; color: var(--muted); font-size: 14px; }

.sample .caption { margin: 12px 0 0; font-size: 14px; }

.docs ul { margin: 0; padding-left: 20px; }
.docs li { margin: 6px 0; font-size: 14px; }

.commands {
  margin: 0;
  display: grid;
  grid-template-columns: max-content 1fr;
  gap: 6px 18px;
  align-items: baseline;
}
.commands dt {
  font-family: var(--mono);
  font-size: 13px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 2px 8px;
  white-space: nowrap;
}
.commands dd {
  margin: 0;
  font-size: 14px;
  color: var(--muted);
}

@media (max-width: 560px) {
  .commands { grid-template-columns: 1fr; gap: 2px 0; }
  .commands dt { justify-self: start; }
  .commands dd { margin-bottom: 8px; }
}

@media (max-width: 720px) {
  main { padding: 0 16px; }
  header.site, footer.site { padding: 10px 16px; }
  .hero h1 { font-size: 28px; }
  .hero .lead { font-size: 15px; }
  section { margin: 40px 0; }
}