:root {
  --bg: #fbfaf6;
  --text: #1f2321;
  --muted: #5b625f;
  --accent: #0a554f;
  --card: #f1eee7;
  --line: #e2ded4;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #121514;
    --text: #e9ece9;
    --muted: #a6aeaa;
    --accent: #7fc4b8;
    --card: #1c211f;
    --line: #2b322f;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 17px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}
main { max-width: 720px; margin: 0 auto; padding: 32px 16px 64px; }
header { display: flex; align-items: center; gap: 12px; margin-bottom: 8px; }
header img { width: 44px; height: 44px; border-radius: 10px; }
header a { color: var(--text); text-decoration: none; font-weight: 600; font-size: 20px; }
nav { display: flex; gap: 16px; margin-bottom: 32px; font-size: 15px; }
nav a, a { color: var(--accent); }
h1 { font-size: 30px; line-height: 1.2; margin: 0 0 8px; }
h2 { font-size: 21px; margin: 32px 0 8px; }
.muted { color: var(--muted); }
.card { background: var(--card); border-radius: 14px; padding: 16px 20px; margin: 16px 0; }
table { width: 100%; border-collapse: collapse; font-size: 15px; margin: 12px 0; }
th, td { text-align: left; vertical-align: top; padding: 10px 8px; border-bottom: 1px solid var(--line); }
th { font-weight: 600; }
.table-wrap { overflow-x: auto; }
footer { margin-top: 48px; font-size: 14px; color: var(--muted); }