:root {
  --fg: #0a0a0a;
  --fg-soft: #4a4a4a;
  --bg: #fafafa;
  --bg-soft: #f0f0f0;
  --border: #e5e5e5;
  --accent: #0066ff;
}
@media (prefers-color-scheme: dark) {
  :root {
    --fg: #f5f5f5;
    --fg-soft: #a8a8a8;
    --bg: #0c0c0e;
    --bg-soft: #16161a;
    --border: #26262b;
    --accent: #4d92ff;
  }
}
* { box-sizing: border-box; }
html, body {
  margin: 0;
  padding: 0;
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", system-ui, sans-serif;
  background: var(--bg);
  color: var(--fg);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
.wrap {
  max-width: 720px;
  margin: 0 auto;
  padding: 64px 24px 96px;
}
header.site {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 56px;
}
header.site .mark {
  width: 36px;
  height: 36px;
  border-radius: 9px;
  background: linear-gradient(135deg, #4d92ff, #6e3aff);
  display: grid;
  place-items: center;
  color: white;
  font-weight: 700;
  font-size: 18px;
  letter-spacing: -0.5px;
}
header.site a.brand {
  color: var(--fg);
  text-decoration: none;
  font-weight: 600;
  font-size: 17px;
  letter-spacing: -0.2px;
}
nav.site {
  margin-left: auto;
  display: flex;
  gap: 18px;
}
nav.site a {
  color: var(--fg-soft);
  text-decoration: none;
  font-size: 14px;
}
nav.site a:hover { color: var(--fg); }
h1 {
  font-size: 40px;
  letter-spacing: -1px;
  line-height: 1.15;
  margin: 0 0 16px;
  font-weight: 700;
}
h2 {
  font-size: 22px;
  letter-spacing: -0.4px;
  margin: 40px 0 12px;
  font-weight: 600;
}
h3 {
  font-size: 16px;
  margin: 28px 0 8px;
  font-weight: 600;
}
p { margin: 0 0 14px; color: var(--fg-soft); font-size: 16px; }
p.lede { font-size: 19px; color: var(--fg); margin-bottom: 32px; }
ul { margin: 0 0 16px; padding-left: 20px; color: var(--fg-soft); }
ul li { margin-bottom: 6px; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
code, kbd {
  font-family: "SF Mono", ui-monospace, Menlo, Consolas, monospace;
  font-size: 13px;
  background: var(--bg-soft);
  padding: 1px 6px;
  border-radius: 4px;
  border: 1px solid var(--border);
}
.feat {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin: 28px 0 36px;
}
.feat .card {
  border: 1px solid var(--border);
  background: var(--bg-soft);
  border-radius: 10px;
  padding: 16px 18px;
}
.feat .card h3 { margin: 0 0 4px; font-size: 15px; }
.feat .card p { margin: 0; font-size: 14px; }
@media (max-width: 540px) {
  .feat { grid-template-columns: 1fr; }
  h1 { font-size: 32px; }
  .wrap { padding: 32px 18px 64px; }
}
footer {
  margin-top: 64px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
  color: var(--fg-soft);
  font-size: 13px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}
footer a { color: var(--fg-soft); }
.muted { color: var(--fg-soft); }
.pill {
  display: inline-block;
  padding: 4px 10px;
  font-size: 12px;
  border-radius: 999px;
  background: var(--bg-soft);
  border: 1px solid var(--border);
  color: var(--fg-soft);
}