:root {
  --bg: #f7f7f5;
  --fg: #1d1d1f;
  --muted: #5f6064;
  --line: #dcdcd8;
  --accent: #3a5bd9;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #15161a;
    --fg: #ececee;
    --muted: #a3a4aa;
    --line: #2c2e34;
    --accent: #8ea4ff;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font: 17px/1.6 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
.wrap { max-width: 42rem; margin: 0 auto; padding: 0 16px; }
main { padding-top: 12vh; padding-bottom: 3rem; }
.mark {
  display: inline-grid; place-items: center;
  width: 3rem; height: 3rem; margin: 0 0 1rem;
  border: 2px solid var(--fg); border-radius: 6px;
  font-weight: 700; letter-spacing: 0.04em;
}
h1 { font-size: 2.4rem; line-height: 1.15; margin: 0 0 0.5rem; letter-spacing: -0.01em; }
h2 { font-size: 1.15rem; margin: 2rem 0 0.5rem; }
.lede { font-size: 1.25rem; color: var(--muted); margin: 0 0 2rem; }
.status { color: var(--muted); }
.muted { color: var(--muted); }
a { color: var(--accent); }
ul { padding-left: 1.2rem; }
footer { border-top: 1px solid var(--line); color: var(--muted); font-size: 0.9rem; padding-top: 1rem; padding-bottom: 2rem; }