:root {
  color-scheme: light dark;
  --bg: #0e1116;
  --fg: #e6edf3;
  --muted: #9aa4b2;
  --accent: #4ec9b0;
  --card: #161b22;
  --border: #30363d;
}
@media (prefers-color-scheme: light) {
  :root {
    --bg: #ffffff;
    --fg: #1f2328;
    --muted: #6b7280;
    --accent: #1f8a70;
    --card: #f6f8fa;
    --border: #d0d7de;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  background: var(--bg);
  color: var(--fg);
  line-height: 1.6;
}
.container { max-width: 720px; margin: 0 auto; padding: 40px 24px; }
header { margin-bottom: 32px; }
.back { display: inline-block; color: var(--accent); text-decoration: none; margin-bottom: 16px; font-size: 0.95rem; }
.back:hover { text-decoration: underline; }
h1 { font-size: 2rem; margin: 0 0 6px; letter-spacing: -0.02em; }
h2 { font-size: 1.25rem; margin: 28px 0 10px; color: var(--fg); }
h3 { font-size: 1.05rem; margin: 20px 0 8px; color: var(--fg); }
table { width: 100%; border-collapse: collapse; margin: 12px 0 16px; font-size: 0.95rem; }
th, td { border: 1px solid var(--border); padding: 10px 12px; text-align: left; vertical-align: top; }
th { background: var(--card); }
.updated { color: var(--muted); font-size: 0.9rem; margin: 0; }
p, li { color: var(--fg); }
ul { padding-left: 22px; }
li { margin-bottom: 6px; }
strong { color: var(--fg); }
a { color: var(--accent); }
footer { margin-top: 56px; padding-top: 20px; border-top: 1px solid var(--border); color: var(--muted); font-size: 0.85rem; }
footer a { color: var(--muted); }