:root {
  --bg: #ffffff;
  --surface: #f6f7f9;
  --border: #e2e5ea;
  --text: #16181d;
  --muted: #5a6070;
  --accent: #2f5bd7;
  --accent-soft: #eaeffc;
  --max: 46rem;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1115;
    --surface: #161920;
    --border: #262b35;
    --text: #e8eaee;
    --muted: #98a0b0;
    --accent: #7d9dfb;
    --accent-soft: #1a2137;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.65 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}

.wrap {
  max-width: var(--max);
  margin: 0 auto;
  padding: 3.5rem 1.5rem 5rem;
}

header.site {
  border-bottom: 1px solid var(--border);
}

header.site .wrap {
  padding: 1.25rem 1.5rem;
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.brand {
  font-size: 1.15rem;
  font-weight: 650;
  letter-spacing: -0.01em;
  text-decoration: none;
  color: var(--text);
}

nav a {
  color: var(--muted);
  text-decoration: none;
  margin-left: 1.25rem;
  font-size: 0.9rem;
}

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

h1 {
  font-size: clamp(1.9rem, 5vw, 2.6rem);
  line-height: 1.15;
  letter-spacing: -0.025em;
  margin: 0 0 1rem;
}

h2 {
  font-size: 1.2rem;
  letter-spacing: -0.01em;
  margin: 2.75rem 0 0.75rem;
}

h3 {
  font-size: 1rem;
  margin: 1.75rem 0 0.5rem;
}

.lead {
  font-size: 1.15rem;
  color: var(--muted);
  margin: 0 0 2rem;
}

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

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

ul { padding-left: 1.25rem; }
li { margin: 0.35rem 0; }

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1.25rem 1.4rem;
  margin: 1.5rem 0;
}

.card h3 { margin-top: 0; }

table {
  width: 100%;
  border-collapse: collapse;
  margin: 1rem 0;
  font-size: 0.95rem;
}

th, td {
  text-align: left;
  padding: 0.6rem 0.75rem;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}

th {
  font-weight: 600;
  color: var(--muted);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.table-scroll { overflow-x: auto; }

.updated {
  display: inline-block;
  background: var(--accent-soft);
  color: var(--accent);
  border-radius: 99px;
  padding: 0.2rem 0.7rem;
  font-size: 0.8rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
}

footer.site {
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.88rem;
}

footer.site .wrap {
  padding: 1.5rem;
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

footer.site a { color: var(--muted); }