:root {
  --bg: #f6f8f7;
  --surface: #ffffff;
  --text: #0f2a24;
  --muted: #557069;
  --accent: #0b7a5e;
  --border: #dde7e3;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #06201b;
    --surface: #0d2c25;
    --text: #e8f3ef;
    --muted: #9fc3b6;
    --accent: #7ef0c1;
    --border: #1d4038;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.65 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}
main {
  max-width: 760px;
  margin: 0 auto;
  padding: 40px 16px 64px;
}
header { display: flex; align-items: center; gap: 12px; margin-bottom: 8px; }
header img { width: 48px; height: 48px; border-radius: 12px; }
h1 { font-size: 28px; line-height: 1.25; margin: 0; }
h2 { font-size: 19px; margin: 32px 0 8px; }
.meta { color: var(--muted); font-size: 14px; margin: 4px 0 24px; }
a { color: var(--accent); }
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 16px 20px;
  margin: 16px 0;
}
table { width: 100%; border-collapse: collapse; font-size: 15px; }
th, td { text-align: left; padding: 8px 6px; border-bottom: 1px solid var(--border); vertical-align: top; }
th { color: var(--muted); font-weight: 600; }
.table-wrap { overflow-x: auto; }
ul { padding-left: 22px; }
footer { color: var(--muted); font-size: 14px; margin-top: 48px; }
nav a { margin-right: 16px; }