:root {
  --bg: #f7f7f5;
  --surface: #ffffff;
  --text: #16171a;
  --muted: #5c5f66;
  --border: #e4e4e0;
  --accent: #5b50c8;
  --accent-subtle: #eceafd;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #121316;
    --surface: #1b1c20;
    --text: #f2f2ef;
    --muted: #a5a7ad;
    --border: #2c2d33;
    --accent: #aaa2f5;
    --accent-subtle: #2d2946;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.65 "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
}
main { max-width: 720px; margin: 0 auto; padding: 40px 16px 64px; }
header { display: flex; align-items: center; gap: 12px; margin-bottom: 8px; }
header img { width: 40px; height: 40px; border-radius: 10px; }
header a { color: var(--text); text-decoration: none; font-weight: 600; }
h1 { font-size: 30px; line-height: 1.2; margin: 24px 0 4px; letter-spacing: -0.01em; }
h2 { font-size: 19px; margin: 32px 0 8px; }
p, li { color: var(--text); }
.muted { color: var(--muted); }
a { color: var(--accent); }
ul { padding-left: 22px; }
li { margin: 4px 0; }
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 16px 18px;
  margin: 16px 0;
}
.note { background: var(--accent-subtle); border-color: transparent; }
table { width: 100%; border-collapse: collapse; font-size: 15px; }
th, td { text-align: left; padding: 10px 8px; border-bottom: 1px solid var(--border); vertical-align: top; }
th { color: var(--muted); font-weight: 600; }
nav { display: flex; gap: 16px; flex-wrap: wrap; margin-top: 40px; font-size: 15px; }