:root {
  --ink: #1b1b1f;
  --muted: #56565e;
  --rule: #e3e3e8;
  --accent: #1c4e80;
  --bg: #ffffff;
  --panel: #f6f7f9;
}

@media (prefers-color-scheme: dark) {
  :root {
    --ink: #e8e8ec;
    --muted: #a0a0aa;
    --rule: #2c2c34;
    --accent: #7fb1e0;
    --bg: #141418;
    --panel: #1c1c22;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  padding: 0 1.25rem 5rem;
  background: var(--bg);
  color: var(--ink);
  font: 16px/1.65 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}

.wrap { max-width: 46rem; margin: 0 auto; }

header {
  border-bottom: 1px solid var(--rule);
  margin-bottom: 2.5rem;
  padding: 1.75rem 0 1.25rem;
}

header a.home {
  font-weight: 600;
  color: var(--ink);
  text-decoration: none;
  letter-spacing: -0.01em;
}

nav { margin-top: 0.6rem; display: flex; gap: 1.25rem; flex-wrap: wrap; }
nav a { color: var(--muted); text-decoration: none; font-size: 0.9rem; }
nav a:hover { color: var(--accent); }

h1 { font-size: 1.9rem; line-height: 1.25; letter-spacing: -0.02em; margin: 0 0 0.5rem; }
h2 { font-size: 1.2rem; margin: 2.5rem 0 0.75rem; letter-spacing: -0.01em; }
h3 { font-size: 1rem; margin: 1.75rem 0 0.5rem; }

.updated { color: var(--muted); font-size: 0.875rem; margin: 0 0 2rem; }

p, li { color: var(--ink); }
ul { padding-left: 1.25rem; }
li { margin: 0.35rem 0; }

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

.panel {
  background: var(--panel);
  border: 1px solid var(--rule);
  border-radius: 8px;
  padding: 1rem 1.25rem;
  margin: 1.5rem 0;
}

.panel p:first-child { margin-top: 0; }
.panel p:last-child { margin-bottom: 0; }

table { border-collapse: collapse; width: 100%; margin: 1.25rem 0; font-size: 0.94rem; }
th, td { text-align: left; padding: 0.6rem 0.75rem; border-bottom: 1px solid var(--rule); vertical-align: top; }
th { font-weight: 600; }

code {
  background: var(--panel);
  border: 1px solid var(--rule);
  border-radius: 4px;
  padding: 0.1rem 0.35rem;
  font-size: 0.88em;
}

footer {
  border-top: 1px solid var(--rule);
  margin-top: 4rem;
  padding-top: 1.25rem;
  color: var(--muted);
  font-size: 0.875rem;
}

.overflow { overflow-x: auto; }