:root {
  --brand: #4F46E5;
  --brand-deep: #7C3AED;
  --bg: #ffffff;
  --surface: #f5f5f8;
  --text: #16161d;
  --muted: #5c5c6b;
  --border: #e3e3ea;
}

@media (prefers-color-scheme: dark) {
  :root {
    --brand: #8580f5;
    --brand-deep: #a578f6;
    --bg: #111117;
    --surface: #1b1b23;
    --text: #f2f2f5;
    --muted: #a2a2b2;
    --border: #2c2c37;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.65;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

.wrap {
  max-width: 760px;
  margin: 0 auto;
  padding: 32px 22px 90px;
}

header.site {
  border-bottom: 1px solid var(--border);
  background: var(--bg);
  position: sticky;
  top: 0;
  z-index: 10;
}

header.site .inner {
  max-width: 760px;
  margin: 0 auto;
  padding: 14px 22px;
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.logo {
  width: 34px;
  height: 34px;
  border-radius: 9px;
  background: linear-gradient(135deg, var(--brand), var(--brand-deep));
  display: grid;
  place-items: center;
  color: #fff;
  font-weight: 800;
  font-size: 15px;
  flex: none;
}

.brandname {
  font-weight: 700;
  margin-right: auto;
  font-size: 15px;
}

nav a {
  color: var(--muted);
  text-decoration: none;
  font-size: 14px;
  font-weight: 600;
  margin-left: 16px;
}

nav a:hover { color: var(--brand); }

h1 {
  font-size: clamp(28px, 5vw, 40px);
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin: 26px 0 10px;
}

h2 {
  font-size: 20px;
  margin: 34px 0 10px;
  letter-spacing: -0.01em;
}

h3 { font-size: 16px; margin: 22px 0 6px; }

p, li { color: var(--text); }

.lede {
  font-size: 18px;
  color: var(--muted);
}

.updated {
  display: inline-block;
  font-size: 13px;
  color: var(--muted);
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 5px 11px;
  border-radius: 999px;
  margin-bottom: 8px;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 18px 20px;
  margin: 18px 0;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 14px;
  margin: 22px 0;
}

.feature h3 { margin-top: 0; }
.feature p { color: var(--muted); margin: 0; font-size: 15px; }

a { color: var(--brand); }

table {
  width: 100%;
  border-collapse: collapse;
  margin: 16px 0;
  font-size: 15px;
  display: block;
  overflow-x: auto;
}

th, td {
  text-align: left;
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}

th { color: var(--muted); font-size: 13px; text-transform: uppercase; letter-spacing: .04em; }

footer.site {
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 14px;
}

footer.site .inner {
  max-width: 760px;
  margin: 0 auto;
  padding: 22px;
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

footer.site a { color: var(--muted); text-decoration: none; font-weight: 600; }
footer.site a:hover { color: var(--brand); }
footer.site .spacer { margin-left: auto; }

ul { padding-left: 20px; }
li { margin: 6px 0; }