:root {
  color-scheme: light;
  --ink: #1c2430;
  --muted: #5b6774;
  --line: #dde3ea;
  --bg: #ffffff;
  --accent: #2456a6;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font: 16px/1.65 "Segoe UI", system-ui, -apple-system, sans-serif;
  color: var(--ink);
  background: var(--bg);
}

.wrap { max-width: 860px; margin: 0 auto; padding: 0 20px; }

.bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 56px;
}

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

.brand {
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--ink);
  text-decoration: none;
}

nav a {
  color: var(--muted);
  text-decoration: none;
  margin-left: 18px;
}

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

main { padding: 36px 20px 8px; }

h1 { font-size: 1.55rem; margin: 0 0 14px; }

h2 { font-size: 1.1rem; margin: 28px 0 8px; }

section { margin-bottom: 8px; }

ul { margin: 8px 0; padding-left: 22px; }

li { margin: 4px 0; }

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

code {
  font: 0.92em/1.5 Consolas, "JetBrains Mono", monospace;
  background: #f2f5f9;
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 1px 6px;
  word-break: break-all;
}

table {
  border-collapse: collapse;
  width: 100%;
  margin: 12px 0;
}

th, td {
  text-align: left;
  border-bottom: 1px solid var(--line);
  padding: 7px 10px;
}

th { color: var(--muted); font-weight: 600; }

footer {
  margin-top: 40px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.88rem;
}

footer .wrap {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  padding: 16px 20px;
}