:root {
  --bg: #ffffff;
  --text: #16171a;
  --muted: #60646c;
  --accent: #e0245e;
  --line: #e6e7ea;
  --note-bg: #fff4e5;
  --note-text: #7a4a00;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1012;
    --text: #f1f2f4;
    --muted: #a8adb4;
    --accent: #ff4d7e;
    --line: #2a2c30;
    --note-bg: #3a2a10;
    --note-text: #ffd89a;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 17px/1.6 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
main { max-width: 720px; margin: 0 auto; padding: 32px 16px 64px; }
header { display: flex; justify-content: space-between; align-items: center; gap: 16px; flex-wrap: wrap; }
.brand { font-weight: 700; font-size: 20px; color: var(--text); text-decoration: none; }
.brand span { color: var(--accent); }
nav a { color: var(--muted); text-decoration: none; margin-left: 16px; font-size: 15px; }
nav a:hover, a:hover { text-decoration: underline; }
a { color: var(--accent); }
h1 { font-size: 36px; line-height: 1.2; margin: 48px 0 8px; }
h2 { font-size: 22px; margin: 40px 0 8px; }
h3 { font-size: 18px; margin: 24px 0 4px; }
.lead { font-size: 20px; color: var(--muted); }
.updated { color: var(--muted); font-size: 15px; }
.todo { background: var(--note-bg); color: var(--note-text); padding: 0 4px; border-radius: 4px; font-weight: 600; }
table { border-collapse: collapse; width: 100%; font-size: 15px; margin: 12px 0; }
th, td { text-align: left; padding: 8px; border-bottom: 1px solid var(--line); vertical-align: top; }
footer { margin-top: 64px; padding-top: 16px; border-top: 1px solid var(--line); color: var(--muted); font-size: 14px; }
footer a { color: var(--muted); margin-right: 16px; }
@media (max-width: 520px) { h1 { font-size: 28px; } nav a { margin: 0 12px 0 0; } }